CVE-2017-1000256: libvirt: TLS certificate verification disabled for clients (bz #1503687 )

Fix TPM2 passthrough (bz #1486240 )
Fix spice GL qemu:///system rendernode permissions (bz #1460804) Fix on_reboot=destroy setting (bz #1476866) Fix disk images in /dev/shm (bz #1482146)
2017-12-04 12:16:49 -05:00 · 2017-09-15 19:04:20 -04:00 · 2017-08-04 16:11:19 -04:00 · 2017-07-12 16:26:46 -04:00 · 2017-06-14 10:47:37 -04:00 · 2017-05-31 17:28:27 -04:00
41 changed files with 4837 additions and 5555 deletions
@@ -2,4 +2,4 @@
 *.rpm
 i686
 x86_64
-libvirt-*.tar.gz
+libvirt-*.tar.xz
@@ -0,0 +1,122 @@
+From: Andrea Bolognani <abologna@redhat.com>
+Date: Fri, 12 May 2017 14:05:55 +0200
+Subject: [PATCH] tests: Check default GIC version for aarch64/virt TCG guests
+
+Signed-off-by: Andrea Bolognani <abologna@redhat.com>
+(cherry picked from commit b24eaf6210ebaf5dc8d29621063873c8419c517e)
+---
+ .../qemuxml2argv-aarch64-gic-none-tcg.args         | 19 ++++++++++++++++
+ .../qemuxml2argv-aarch64-gic-none-tcg.xml          | 17 +++++++++++++++
+ tests/qemuxml2argvtest.c                           |  3 +++
+ .../qemuxml2xmlout-aarch64-gic-none-tcg.xml        | 25 ++++++++++++++++++++++
+ tests/qemuxml2xmltest.c                            |  1 +
+ 5 files changed, 65 insertions(+)
+ create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.args
+ create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.xml
+ create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-gic-none-tcg.xml
+
+diff --git a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.args b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.args
+new file mode 100644
+index 000000000..975a01481
+--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.args
+@@ -0,0 +1,19 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-aarch64 \
+-name guest \
+-S \
+-machine virt,accel=tcg,gic-version=3 \
+-cpu cortex-a57 \
+-m 1024 \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid 6ba410c5-1e5c-4d57-bee7-2228e7ffa32f \
+-nographic \
+-nodefaults \
+-monitor unix:/tmp/lib/domain--1-guest/monitor.sock,server,nowait \
+-no-acpi \
+-boot c
+diff --git a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.xml b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.xml
+new file mode 100644
+index 000000000..0aa33dbec
+--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.xml
+@@ -0,0 +1,17 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>6ba410c5-1e5c-4d57-bee7-2228e7ffa32f</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='aarch64' machine='virt'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <cpu mode='custom'>
+    <model>cortex-a57</model>
+  </cpu>
+  <devices>
+    <emulator>/usr/bin/qemu-system-aarch64</emulator>
+    <memballoon model='none'/>
+  </devices>
+</domain>
+diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
+index cc4fb91cd..362b140ac 100644
+--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
+@@ -2250,6 +2250,9 @@ mymain(void)
+     DO_TEST_GIC("aarch64-gic-none-both", GIC_BOTH,
+             QEMU_CAPS_KVM, QEMU_CAPS_MACHINE_OPT,
+             QEMU_CAPS_MACH_VIRT_GIC_VERSION);
+    DO_TEST_GIC("aarch64-gic-none-tcg", GIC_BOTH,
+            QEMU_CAPS_MACHINE_OPT,
+            QEMU_CAPS_MACH_VIRT_GIC_VERSION);
+     DO_TEST_GIC("aarch64-gic-default", GIC_NONE,
+             QEMU_CAPS_KVM, QEMU_CAPS_MACHINE_OPT);
+     DO_TEST_GIC("aarch64-gic-default", GIC_NONE,
+diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-gic-none-tcg.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-gic-none-tcg.xml
+new file mode 100644
+index 000000000..69510e281
+--- /dev/null
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-gic-none-tcg.xml
+@@ -0,0 +1,25 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>6ba410c5-1e5c-4d57-bee7-2228e7ffa32f</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <currentMemory unit='KiB'>1048576</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='aarch64' machine='virt'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <features>
+    <gic version='3'/>
+  </features>
+  <cpu mode='custom' match='exact' check='none'>
+    <model fallback='allow'>cortex-a57</model>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-aarch64</emulator>
+    <memballoon model='none'/>
+  </devices>
+</domain>
+diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
+index eae999dd6..aae632afe 100644
+--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
+@@ -1073,6 +1073,7 @@ mymain(void)
+     DO_TEST_FULL("aarch64-gic-none-v2", WHEN_BOTH, GIC_V2, NONE);
+     DO_TEST_FULL("aarch64-gic-none-v3", WHEN_BOTH, GIC_V3, NONE);
+     DO_TEST_FULL("aarch64-gic-none-both", WHEN_BOTH, GIC_BOTH, NONE);
+    DO_TEST_FULL("aarch64-gic-none-tcg", WHEN_BOTH, GIC_BOTH, NONE);
+     DO_TEST_FULL("aarch64-gic-default", WHEN_BOTH, GIC_NONE, NONE);
+     DO_TEST_FULL("aarch64-gic-default", WHEN_BOTH, GIC_V2, NONE);
+     DO_TEST_FULL("aarch64-gic-default", WHEN_BOTH, GIC_V3, NONE);
@@ -0,0 +1,85 @@
+From: Andrea Bolognani <abologna@redhat.com>
+Date: Fri, 12 May 2017 13:29:57 +0200
+Subject: [PATCH] qemu: Use GICv2 for aarch64/virt TCG guests
+
+There are currently some limitations in the emulated GICv3
+that make it unsuitable as a default. Use GICv2 instead.
+
+Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1450433
+
+Signed-off-by: Andrea Bolognani <abologna@redhat.com>
+(cherry picked from commit bc07101a7c2cd2ce07ad1ca28c47e0a7cde5625d)
+---
+ src/qemu/qemu_domain.c                             | 23 +++++++++++++++++++++-
+ .../qemuxml2argv-aarch64-gic-none-tcg.args         |  2 +-
+ .../qemuxml2xmlout-aarch64-gic-none-tcg.xml        |  2 +-
+ 3 files changed, 24 insertions(+), 3 deletions(-)
+
+diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
+index 589eb1889..891f8258a 100644
+--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
+@@ -2527,6 +2527,24 @@ qemuDomainDefEnableDefaultFeatures(virDomainDefPtr def,
+         for (version = VIR_GIC_VERSION_LAST - 1;
+              version > VIR_GIC_VERSION_NONE;
+              version--) {
+
+            /* We want to use the highest available GIC version for guests;
+             * however, the emulated GICv3 is currently lacking a MSI controller,
+             * making it unsuitable for the pure PCIe topology we aim for.
+             *
+             * For that reason, we skip this step entirely for TCG guests,
+             * and rely on the code below to pick the default version, GICv2,
+             * which supports all the features we need.
+             *
+             * We'll want to revisit this once MSI support for GICv3 has been
+             * implemented in QEMU.
+             *
+             * See https://bugzilla.redhat.com/show_bug.cgi?id=1414081 */
+            if (version == VIR_GIC_VERSION_3 &&
+                def->virtType == VIR_DOMAIN_VIRT_QEMU) {
+                continue;
+            }
+
+             if (virQEMUCapsSupportsGICVersion(qemuCaps,
+                                               def->virtType,
+                                               version)) {
+@@ -2544,8 +2562,11 @@ qemuDomainDefEnableDefaultFeatures(virDomainDefPtr def,
+ 
+     /* Use the default GIC version if no version was specified */
+     if (def->features[VIR_DOMAIN_FEATURE_GIC] == VIR_TRISTATE_SWITCH_ON &&
+-        def->gic_version == VIR_GIC_VERSION_NONE)
+        def->gic_version == VIR_GIC_VERSION_NONE) {
+        VIR_DEBUG("Using GIC version %s (default)",
+                  virGICVersionTypeToString(VIR_GIC_VERSION_DEFAULT));
+         def->gic_version = VIR_GIC_VERSION_DEFAULT;
+    }
+ }
+ 
+ 
+diff --git a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.args b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.args
+index 975a01481..52b699696 100644
+--- a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-gic-none-tcg.args
+@@ -7,7 +7,7 @@ QEMU_AUDIO_DRV=none \
+ /usr/bin/qemu-system-aarch64 \
+ -name guest \
+ -S \
+--machine virt,accel=tcg,gic-version=3 \
+-machine virt,accel=tcg \
+ -cpu cortex-a57 \
+ -m 1024 \
+ -smp 1,sockets=1,cores=1,threads=1 \
+diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-gic-none-tcg.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-gic-none-tcg.xml
+index 69510e281..a0cd0b768 100644
+--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-gic-none-tcg.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-gic-none-tcg.xml
+@@ -9,7 +9,7 @@
+     <boot dev='hd'/>
+   </os>
+   <features>
+-    <gic version='3'/>
+    <gic version='2'/>
+   </features>
+   <cpu mode='custom' match='exact' check='none'>
+     <model fallback='allow'>cortex-a57</model>
@@ -0,0 +1,67 @@
+From: Andrea Bolognani <abologna@redhat.com>
+Date: Fri, 12 May 2017 14:38:08 +0200
+Subject: [PATCH] gic: Remove VIR_GIC_VERSION_DEFAULT
+
+The QEMU default is GICv2, and some of the code in libvirt
+relies on the exact value. Stop pretending that's not the
+case and use GICv2 explicitly where needed.
+
+Signed-off-by: Andrea Bolognani <abologna@redhat.com>
+(cherry picked from commit 5645badd1fe04fee7237c2f95e7710e978e40770)
+---
+ src/qemu/qemu_command.c | 6 +++---
+ src/qemu/qemu_domain.c  | 7 +++----
+ src/util/virgic.h       | 3 ---
+ 3 files changed, 6 insertions(+), 10 deletions(-)
+
+diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
+index 2d1328cf9..5feddc523 100644
+--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
+@@ -7321,9 +7321,9 @@ qemuBuildMachineCommandLine(virCommandPtr cmd,
+                     goto cleanup;
+                 }
+ 
+-                /* The default GIC version should not be specified on the
+-                 * QEMU commandline for backwards compatibility reasons */
+-                if (def->gic_version != VIR_GIC_VERSION_DEFAULT) {
+                /* The default GIC version (GICv2) should not be specified on
+                 * the QEMU commandline for backwards compatibility reasons */
+                if (def->gic_version != VIR_GIC_VERSION_2) {
+                     if (!virQEMUCapsGet(qemuCaps,
+                                         QEMU_CAPS_MACH_VIRT_GIC_VERSION)) {
+                         virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
+index 891f8258a..4a127cedf 100644
+--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
+@@ -2560,12 +2560,11 @@ qemuDomainDefEnableDefaultFeatures(virDomainDefPtr def,
+         def->features[VIR_DOMAIN_FEATURE_GIC] = VIR_TRISTATE_SWITCH_ON;
+     }
+ 
+-    /* Use the default GIC version if no version was specified */
+    /* Use the default GIC version (GICv2) if no version was specified */
+     if (def->features[VIR_DOMAIN_FEATURE_GIC] == VIR_TRISTATE_SWITCH_ON &&
+         def->gic_version == VIR_GIC_VERSION_NONE) {
+-        VIR_DEBUG("Using GIC version %s (default)",
+-                  virGICVersionTypeToString(VIR_GIC_VERSION_DEFAULT));
+-        def->gic_version = VIR_GIC_VERSION_DEFAULT;
+        VIR_DEBUG("Using GIC version 2 (default)");
+        def->gic_version = VIR_GIC_VERSION_2;
+     }
+ }
+ 
+diff --git a/src/util/virgic.h b/src/util/virgic.h
+index 1c9efd60f..2d77fdd45 100644
+--- a/src/util/virgic.h
+++ b/src/util/virgic.h
+@@ -35,9 +35,6 @@ typedef enum {
+ 
+ VIR_ENUM_DECL(virGICVersion);
+ 
+-/* Consider GIC v2 the default */
+-# define VIR_GIC_VERSION_DEFAULT VIR_GIC_VERSION_2
+-
+ typedef enum {
+     VIR_GIC_IMPLEMENTATION_NONE = 0,
+     VIR_GIC_IMPLEMENTATION_KERNEL = (1 << 1),
@@ -0,0 +1,198 @@
+From: Laine Stump <laine@laine.org>
+Date: Thu, 18 May 2017 14:16:27 -0400
+Subject: [PATCH] Revert "qemu: propagate bridge MTU into qemu "host_mtu"
+ option"
+
+This reverts commit 2841e675.
+
+It turns out that adding the host_mtu field to the PCI capabilities in
+the guest bumps the length of PCI capabilities beyond the 32 byte
+boundary, so the virtio-net device gets 64 bytes of ioport space
+instead of 32, which offsets the address of all the other following
+devices. Migration doesn't work very well when the location and length
+of PCI capabilities of devices is changed between source and
+destination.
+
+This means that we need to make sure that the absence/presence of
+host_mtu on the qemu commandline always matches between source and
+destination, which means that we need to make setting of host_mtu an
+opt-in thing (it can't happen automatically when the bridge being used
+has a non-default MTU, which is what commit 2841e675 implemented).
+
+I do want to re-implement this feature with an <mtu auto='on'/>
+setting, but probably won't backport that to any stable branches, so
+I'm first reverting the original commit, and that revert can be pushed
+to the few releases that have been made since the original (3.1.0 -
+3.3.0)
+
+Resolves: https://bugzilla.redhat.com/1449346
+(cherry picked from commit 77780a29edace958a1f931d3281b962be4f5290e)
+(cherry picked from commit a2f5e87dceb1725c16cd4df17a4b7381ecf65901)
+---
+ src/qemu/qemu_command.c   | 32 ++++++++++----------------------
+ src/qemu/qemu_command.h   |  3 +--
+ src/qemu/qemu_hotplug.c   |  5 ++---
+ src/qemu/qemu_interface.c |  5 ++---
+ src/qemu/qemu_interface.h |  3 +--
+ 5 files changed, 16 insertions(+), 32 deletions(-)
+
+diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
+index 5feddc523..3abfe7b55 100644
+--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
+@@ -3629,8 +3629,7 @@ qemuBuildNicDevStr(virDomainDefPtr def,
+                    int vlan,
+                    unsigned int bootindex,
+                    size_t vhostfdSize,
+-                   virQEMUCapsPtr qemuCaps,
+-                   unsigned int mtu)
+                   virQEMUCapsPtr qemuCaps)
+ {
+     virBuffer buf = VIR_BUFFER_INITIALIZER;
+     const char *nic = net->model;
+@@ -3754,23 +3753,13 @@ qemuBuildNicDevStr(virDomainDefPtr def,
+         virBufferAsprintf(&buf, ",rx_queue_size=%u", net->driver.virtio.rx_queue_size);
+     }
+ 
+-    if (usingVirtio && mtu) {
+-        if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_NET_HOST_MTU)) {
+-
+-            virBufferAsprintf(&buf, ",host_mtu=%u", mtu);
+-
+-        } else {
+-            /* log an error if mtu was requested specifically for this
+-             * interface, otherwise, if it's just what was reported by
+-             * the attached network, ignore it.
+-             */
+-            if (net->mtu) {
+-                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+-                               _("setting MTU is not supported with "
+-                                 "this QEMU binary"));
+-                goto error;
+-            }
+    if (usingVirtio && net->mtu) {
+        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_NET_HOST_MTU)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("setting MTU is not supported with this QEMU binary"));
+            goto error;
+         }
+        virBufferAsprintf(&buf, ",host_mtu=%u", net->mtu);
+     }
+ 
+     if (vlan == -1)
+@@ -8213,7 +8202,7 @@ qemuBuildVhostuserCommandLine(virQEMUDriverPtr driver,
+     VIR_FREE(netdev);
+ 
+     if (!(nic = qemuBuildNicDevStr(def, net, -1, bootindex,
+-                                   queues, qemuCaps, net->mtu))) {
+                                   queues, qemuCaps))) {
+         virReportError(VIR_ERR_INTERNAL_ERROR,
+                        "%s", _("Error generating NIC -device string"));
+         goto error;
+@@ -8259,7 +8248,6 @@ qemuBuildInterfaceCommandLine(virQEMUDriverPtr driver,
+     virDomainNetType actualType = virDomainNetGetActualType(net);
+     virNetDevBandwidthPtr actualBandwidth;
+     size_t i;
+-    unsigned int mtu = net->mtu;
+ 
+ 
+     if (!bootindex)
+@@ -8314,7 +8302,7 @@ qemuBuildInterfaceCommandLine(virQEMUDriverPtr driver,
+         memset(tapfd, -1, tapfdSize * sizeof(tapfd[0]));
+ 
+         if (qemuInterfaceBridgeConnect(def, driver, net,
+-                                       tapfd, &tapfdSize, &mtu) < 0)
+                                       tapfd, &tapfdSize) < 0)
+             goto cleanup;
+         break;
+ 
+@@ -8494,7 +8482,7 @@ qemuBuildInterfaceCommandLine(virQEMUDriverPtr driver,
+     }
+     if (qemuDomainSupportsNicdev(def, net)) {
+         if (!(nic = qemuBuildNicDevStr(def, net, vlan, bootindex,
+-                                       vhostfdSize, qemuCaps, mtu)))
+                                       vhostfdSize, qemuCaps)))
+             goto cleanup;
+         virCommandAddArgList(cmd, "-device", nic, NULL);
+     } else {
+diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h
+index 7da92c8c9..09cb00ee9 100644
+--- a/src/qemu/qemu_command.h
+++ b/src/qemu/qemu_command.h
+@@ -101,8 +101,7 @@ char *qemuBuildNicDevStr(virDomainDefPtr def,
+                          int vlan,
+                          unsigned int bootindex,
+                          size_t vhostfdSize,
+-                         virQEMUCapsPtr qemuCaps,
+-                         unsigned int mtu);
+                         virQEMUCapsPtr qemuCaps);
+ 
+ char *qemuDeviceDriveHostAlias(virDomainDiskDefPtr disk);
+ 
+diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
+index f133d04a8..2a4159560 100644
+--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
+@@ -968,7 +968,6 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
+     bool charDevPlugged = false;
+     bool netdevPlugged = false;
+     bool hostPlugged = false;
+-    unsigned int mtu = net->mtu;
+ 
+     /* preallocate new slot for device */
+     if (VIR_REALLOC_N(vm->def->nets, vm->def->nnets + 1) < 0)
+@@ -1025,7 +1024,7 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
+             goto cleanup;
+         memset(vhostfd, -1, sizeof(*vhostfd) * vhostfdSize);
+         if (qemuInterfaceBridgeConnect(vm->def, driver, net,
+-                                       tapfd, &tapfdSize, &mtu) < 0)
+                                       tapfd, &tapfdSize) < 0)
+             goto cleanup;
+         iface_connected = true;
+         if (qemuInterfaceOpenVhostNet(vm->def, net, priv->qemuCaps,
+@@ -1239,7 +1238,7 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
+         VIR_FORCE_CLOSE(vhostfd[i]);
+ 
+     if (!(nicstr = qemuBuildNicDevStr(vm->def, net, vlan, 0,
+-                                      queueSize, priv->qemuCaps, mtu)))
+                                      queueSize, priv->qemuCaps)))
+         goto try_remove;
+ 
+     qemuDomainObjEnterMonitor(driver, vm);
+diff --git a/src/qemu/qemu_interface.c b/src/qemu/qemu_interface.c
+index c5dca60f1..ce448d243 100644
+--- a/src/qemu/qemu_interface.c
+++ b/src/qemu/qemu_interface.c
+@@ -503,8 +503,7 @@ qemuInterfaceBridgeConnect(virDomainDefPtr def,
+                            virQEMUDriverPtr driver,
+                            virDomainNetDefPtr net,
+                            int *tapfd,
+-                           size_t *tapfdSize,
+-                           unsigned int *mtu)
+                           size_t *tapfdSize)
+ {
+     const char *brname;
+     int ret = -1;
+@@ -545,7 +544,7 @@ qemuInterfaceBridgeConnect(virDomainDefPtr def,
+                                            def->uuid, tunpath, tapfd, *tapfdSize,
+                                            virDomainNetGetActualVirtPortProfile(net),
+                                            virDomainNetGetActualVlan(net),
+-                                           net->mtu, mtu,
+                                           0, NULL,
+                                            tap_create_flags) < 0) {
+             virDomainAuditNetDevice(def, net, tunpath, false);
+             goto cleanup;
+diff --git a/src/qemu/qemu_interface.h b/src/qemu/qemu_interface.h
+index ba74ac2cf..a7faa0b3d 100644
+--- a/src/qemu/qemu_interface.h
+++ b/src/qemu/qemu_interface.h
+@@ -51,8 +51,7 @@ int qemuInterfaceBridgeConnect(virDomainDefPtr def,
+                                virQEMUDriverPtr driver,
+                                virDomainNetDefPtr net,
+                                int *tapfd,
+-                               size_t *tapfdSize,
+-                               unsigned int *mtu)
+                               size_t *tapfdSize)
+     ATTRIBUTE_NONNULL(2);
+ 
+ int qemuInterfaceOpenVhostNet(virDomainDefPtr def,
@@ -0,0 +1,145 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Wed, 29 Mar 2017 14:45:44 +0200
+Subject: [PATCH] cpu: Introduce virCPUCopyMigratable
+
+This new internal API makes a copy of virCPUDef while removing all
+features which would block migration. It uses cpu_map.xml as a database
+of such features, which should only be used as a fallback when we cannot
+get the data from a hypervisor. The main goal of this API is to decouple
+this filtering from virCPUUpdate so that the hypervisor driver can
+filter the features according to the hypervisor.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit 05e91c79f19e0be96526098d58a3498dac3f8529)
+---
+ src/cpu/cpu.c            | 31 +++++++++++++++++++++++++++++++
+ src/cpu/cpu.h            |  8 ++++++++
+ src/cpu/cpu_x86.c        | 25 +++++++++++++++++++++++++
+ src/libvirt_private.syms |  1 +
+ 4 files changed, 65 insertions(+)
+
+diff --git a/src/cpu/cpu.c b/src/cpu/cpu.c
+index 93647a2ed..8a407ac18 100644
+--- a/src/cpu/cpu.c
+++ b/src/cpu/cpu.c
+@@ -1130,3 +1130,34 @@ virCPUExpandFeatures(virArch arch,
+     VIR_DEBUG("nfeatures=%zu", cpu->nfeatures);
+     return 0;
+ }
+
+
+/**
+ * virCPUCopyMigratable:
+ *
+ * @arch: CPU architecture
+ * @cpu: CPU definition to be copied
+ *
+ * Makes a copy of @cpu with all features which would block migration removed.
+ * If this doesn't make sense for a given architecture, the function returns a
+ * plain copy of @cpu (i.e., a copy with no features removed).
+ *
+ * Returns the copy of the CPU or NULL on error.
+ */
+virCPUDefPtr
+virCPUCopyMigratable(virArch arch,
+                     virCPUDefPtr cpu)
+{
+    struct cpuArchDriver *driver;
+
+    VIR_DEBUG("arch=%s, cpu=%p, model=%s",
+              virArchToString(arch), cpu, NULLSTR(cpu->model));
+
+    if (!(driver = cpuGetSubDriver(arch)))
+        return NULL;
+
+    if (driver->copyMigratable)
+        return driver->copyMigratable(cpu);
+    else
+        return virCPUDefCopy(cpu);
+}
+diff --git a/src/cpu/cpu.h b/src/cpu/cpu.h
+index 8c238ad55..352445c40 100644
+--- a/src/cpu/cpu.h
+++ b/src/cpu/cpu.h
+@@ -118,6 +118,9 @@ typedef int
+ typedef int
+ (*virCPUArchExpandFeatures)(virCPUDefPtr cpu);
+ 
+typedef virCPUDefPtr
+(*virCPUArchCopyMigratable)(virCPUDefPtr cpu);
+
+ struct cpuArchDriver {
+     const char *name;
+     const virArch *arch;
+@@ -138,6 +141,7 @@ struct cpuArchDriver {
+     virCPUArchTranslate translate;
+     virCPUArchConvertLegacy convertLegacy;
+     virCPUArchExpandFeatures expandFeatures;
+    virCPUArchCopyMigratable copyMigratable;
+ };
+ 
+ 
+@@ -254,6 +258,10 @@ int
+ virCPUExpandFeatures(virArch arch,
+                      virCPUDefPtr cpu);
+ 
+virCPUDefPtr
+virCPUCopyMigratable(virArch arch,
+                     virCPUDefPtr cpu);
+
+ /* virCPUDataFormat and virCPUDataParse are implemented for unit tests only and
+  * have no real-life usage
+  */
+diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
+index 48648a7f4..a771b251e 100644
+--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
+@@ -2903,6 +2903,30 @@ virCPUx86ExpandFeatures(virCPUDefPtr cpu)
+ }
+ 
+ 
+static virCPUDefPtr
+virCPUx86CopyMigratable(virCPUDefPtr cpu)
+{
+    virCPUDefPtr copy;
+    virCPUx86MapPtr map;
+
+    if (!(map = virCPUx86GetMap()))
+        return NULL;
+
+    if (!(copy = virCPUDefCopyWithoutModel(cpu)))
+        return NULL;
+
+    if (virCPUDefCopyModelFilter(copy, cpu, false,
+                                 x86FeatureIsMigratable, map) < 0)
+        goto error;
+
+    return copy;
+
+ error:
+    virCPUDefFree(copy);
+    return NULL;
+}
+
+
+ int
+ virCPUx86DataAddCPUID(virCPUDataPtr cpuData,
+                       const virCPUx86CPUID *cpuid)
+@@ -2978,4 +3002,5 @@ struct cpuArchDriver cpuDriverX86 = {
+     .getModels  = virCPUx86GetModels,
+     .translate  = virCPUx86Translate,
+     .expandFeatures = virCPUx86ExpandFeatures,
+    .copyMigratable = virCPUx86CopyMigratable,
+ };
+diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
+index b551cb86a..dc6db3b28 100644
+--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
+@@ -1016,6 +1016,7 @@ virCPUCheckFeature;
+ virCPUCompare;
+ virCPUCompareXML;
+ virCPUConvertLegacy;
+virCPUCopyMigratable;
+ virCPUDataCheckFeature;
+ virCPUDataFormat;
+ virCPUDataFree;
@@ -0,0 +1,78 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Thu, 30 Mar 2017 13:50:44 +0200
+Subject: [PATCH] qemu: Move common code in virQEMUCapsInitCPUModel one layer
+ up
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit d84b93fad51b190238e18b1daac82ea6e28869e9)
+---
+ src/qemu/qemu_capabilities.c | 25 ++++++++++---------------
+ 1 file changed, 10 insertions(+), 15 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index b1245ad5d..1a15750a3 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -3111,17 +3111,11 @@ virQEMUCapsCPUFilterFeatures(const char *name,
+  */
+ static int
+ virQEMUCapsInitCPUModelS390(virQEMUCapsPtr qemuCaps,
+-                            virDomainVirtType type,
+                            qemuMonitorCPUModelInfoPtr modelInfo,
+                             virCPUDefPtr cpu)
+ {
+-    qemuMonitorCPUModelInfoPtr modelInfo;
+     size_t i;
+ 
+-    if (type == VIR_DOMAIN_VIRT_KVM)
+-        modelInfo = qemuCaps->kvmCPUModelInfo;
+-    else
+-        modelInfo = qemuCaps->tcgCPUModelInfo;
+-
+     if (!modelInfo) {
+         virReportError(VIR_ERR_INTERNAL_ERROR,
+                        _("missing host CPU model info from QEMU capabilities "
+@@ -3163,9 +3157,9 @@ virQEMUCapsInitCPUModelS390(virQEMUCapsPtr qemuCaps,
+ static int
+ virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
+                            virDomainVirtType type,
+                           qemuMonitorCPUModelInfoPtr model,
+                            virCPUDefPtr cpu)
+ {
+-    qemuMonitorCPUModelInfoPtr model;
+     virCPUDataPtr data = NULL;
+     unsigned long long sigFamily = 0;
+     unsigned long long sigModel = 0;
+@@ -3174,11 +3168,6 @@ virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
+     int ret = -1;
+     size_t i;
+ 
+-    if (type == VIR_DOMAIN_VIRT_KVM)
+-        model = qemuCaps->kvmCPUModelInfo;
+-    else
+-        model = qemuCaps->tcgCPUModelInfo;
+-
+     if (!model)
+         return 1;
+ 
+@@ -3239,12 +3228,18 @@ virQEMUCapsInitCPUModel(virQEMUCapsPtr qemuCaps,
+                         virDomainVirtType type,
+                         virCPUDefPtr cpu)
+ {
+    qemuMonitorCPUModelInfoPtr model;
+     int ret = 1;
+ 
+    if (type == VIR_DOMAIN_VIRT_KVM)
+        model = qemuCaps->kvmCPUModelInfo;
+    else
+        model = qemuCaps->tcgCPUModelInfo;
+
+     if (ARCH_IS_S390(qemuCaps->arch))
+-        ret = virQEMUCapsInitCPUModelS390(qemuCaps, type, cpu);
+        ret = virQEMUCapsInitCPUModelS390(qemuCaps, model, cpu);
+     else if (ARCH_IS_X86(qemuCaps->arch))
+-        ret = virQEMUCapsInitCPUModelX86(qemuCaps, type, cpu);
+        ret = virQEMUCapsInitCPUModelX86(qemuCaps, type, model, cpu);
+ 
+     if (ret == 0)
+         cpu->fallback = VIR_CPU_FALLBACK_FORBID;
@@ -0,0 +1,139 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Wed, 29 Mar 2017 13:33:50 +0200
+Subject: [PATCH] qemu: Add migratable parameter to virQEMUCapsInitCPUModel
+
+The caller can ask for a migratable CPU model by passing true for the
+new parameter.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit 00e0cbcb567a57c7b5a145d7fd3fb662779f6bec)
+---
+ src/qemu/qemu_capabilities.c | 36 +++++++++++++++++++++++++-----------
+ src/qemu/qemu_capspriv.h     |  3 ++-
+ tests/cputest.c              |  2 +-
+ 3 files changed, 28 insertions(+), 13 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index 1a15750a3..b8e4e47b6 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -3112,7 +3112,8 @@ virQEMUCapsCPUFilterFeatures(const char *name,
+ static int
+ virQEMUCapsInitCPUModelS390(virQEMUCapsPtr qemuCaps,
+                             qemuMonitorCPUModelInfoPtr modelInfo,
+-                            virCPUDefPtr cpu)
+                            virCPUDefPtr cpu,
+                            bool migratable)
+ {
+     size_t i;
+ 
+@@ -3140,8 +3141,12 @@ virQEMUCapsInitCPUModelS390(virQEMUCapsPtr qemuCaps,
+ 
+         if (VIR_STRDUP(feature->name, prop->name) < 0)
+             return -1;
+-        feature->policy = prop->value.boolean ? VIR_CPU_FEATURE_REQUIRE
+-                                              : VIR_CPU_FEATURE_DISABLE;
+
+        if (!prop->value.boolean ||
+            (migratable && prop->migratable == VIR_TRISTATE_BOOL_NO))
+            feature->policy = VIR_CPU_FEATURE_DISABLE;
+        else
+            feature->policy = VIR_CPU_FEATURE_REQUIRE;
+         cpu->nfeatures++;
+     }
+ 
+@@ -3158,7 +3163,8 @@ static int
+ virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
+                            virDomainVirtType type,
+                            qemuMonitorCPUModelInfoPtr model,
+-                           virCPUDefPtr cpu)
+                           virCPUDefPtr cpu,
+                           bool migratable)
+ {
+     virCPUDataPtr data = NULL;
+     unsigned long long sigFamily = 0;
+@@ -3179,9 +3185,13 @@ virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
+ 
+         switch (prop->type) {
+         case QEMU_MONITOR_CPU_PROPERTY_BOOLEAN:
+-            if (prop->value.boolean &&
+-                virCPUx86DataAddFeature(data, prop->name) < 0)
+            if (!prop->value.boolean ||
+                (migratable && prop->migratable == VIR_TRISTATE_BOOL_NO))
+                continue;
+
+            if (virCPUx86DataAddFeature(data, prop->name) < 0)
+                 goto cleanup;
+
+             break;
+ 
+         case QEMU_MONITOR_CPU_PROPERTY_STRING:
+@@ -3220,13 +3230,14 @@ virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
+ 
+ /**
+  * Returns  0 when host CPU model provided by QEMU was filled in qemuCaps,
+- *          1 when the caller should fall back to using virCapsPtr->host.cpu,
+ *          1 when the caller should fall back to other methods
+  *         -1 on error.
+  */
+ int
+ virQEMUCapsInitCPUModel(virQEMUCapsPtr qemuCaps,
+                         virDomainVirtType type,
+-                        virCPUDefPtr cpu)
+                        virCPUDefPtr cpu,
+                        bool migratable)
+ {
+     qemuMonitorCPUModelInfoPtr model;
+     int ret = 1;
+@@ -3236,10 +3247,13 @@ virQEMUCapsInitCPUModel(virQEMUCapsPtr qemuCaps,
+     else
+         model = qemuCaps->tcgCPUModelInfo;
+ 
+    if (migratable && model && !model->migratability)
+        return 1;
+
+     if (ARCH_IS_S390(qemuCaps->arch))
+-        ret = virQEMUCapsInitCPUModelS390(qemuCaps, model, cpu);
+        ret = virQEMUCapsInitCPUModelS390(qemuCaps, model, cpu, migratable);
+     else if (ARCH_IS_X86(qemuCaps->arch))
+-        ret = virQEMUCapsInitCPUModelX86(qemuCaps, type, model, cpu);
+        ret = virQEMUCapsInitCPUModelX86(qemuCaps, type, model, cpu, migratable);
+ 
+     if (ret == 0)
+         cpu->fallback = VIR_CPU_FALLBACK_FORBID;
+@@ -3268,7 +3282,7 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+     cpu->match = VIR_CPU_MATCH_EXACT;
+     cpu->fallback = VIR_CPU_FALLBACK_ALLOW;
+ 
+-    if ((rc = virQEMUCapsInitCPUModel(qemuCaps, type, cpu)) < 0) {
+    if ((rc = virQEMUCapsInitCPUModel(qemuCaps, type, cpu, false)) < 0) {
+         goto error;
+     } else if (rc == 1) {
+         VIR_DEBUG("No host CPU model info from QEMU; probing host CPU directly");
+diff --git a/src/qemu/qemu_capspriv.h b/src/qemu/qemu_capspriv.h
+index 61ccd4517..1baaaf334 100644
+--- a/src/qemu/qemu_capspriv.h
+++ b/src/qemu/qemu_capspriv.h
+@@ -81,7 +81,8 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+ int
+ virQEMUCapsInitCPUModel(virQEMUCapsPtr qemuCaps,
+                         virDomainVirtType type,
+-                        virCPUDefPtr cpu);
+                        virCPUDefPtr cpu,
+                        bool migratable);
+ 
+ void
+ virQEMUCapsSetCPUModelInfo(virQEMUCapsPtr qemuCaps,
+diff --git a/tests/cputest.c b/tests/cputest.c
+index 3d3e43f16..8c07cf4f6 100644
+--- a/tests/cputest.c
+++ b/tests/cputest.c
+@@ -709,7 +709,7 @@ cpuTestJSONCPUID(const void *arg)
+     cpu->match = VIR_CPU_MATCH_EXACT;
+     cpu->fallback = VIR_CPU_FALLBACK_FORBID;
+ 
+-    if (virQEMUCapsInitCPUModel(qemuCaps, VIR_DOMAIN_VIRT_KVM, cpu) != 0)
+    if (virQEMUCapsInitCPUModel(qemuCaps, VIR_DOMAIN_VIRT_KVM, cpu, false) != 0)
+         goto cleanup;
+ 
+     ret = cpuTestCompareXML(data->arch, cpu, result, false);
@@ -0,0 +1,47 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Fri, 7 Apr 2017 17:03:38 +0200
+Subject: [PATCH] qemu: Introduce virQEMUCapsSetHostModel
+
+A simple helper as a complement to virQEMUCapsGetHostModel.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit bffc3b9fe501ff122ad81ddf42ecdb69f70ff70a)
+---
+ src/qemu/qemu_capabilities.c | 17 +++++++++++++----
+ 1 file changed, 13 insertions(+), 4 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index b8e4e47b6..f6020b86d 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -2419,6 +2419,18 @@ virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+ }
+ 
+ 
+static void
+virQEMUCapsSetHostModel(virQEMUCapsPtr qemuCaps,
+                        virDomainVirtType type,
+                        virCPUDefPtr cpu)
+{
+    if (type == VIR_DOMAIN_VIRT_KVM)
+        qemuCaps->kvmCPUModel = cpu;
+    else
+        qemuCaps->tcgCPUModel = cpu;
+}
+
+
+ bool
+ virQEMUCapsIsCPUModeSupported(virQEMUCapsPtr qemuCaps,
+                               virCapsPtr caps,
+@@ -3295,10 +3307,7 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+             goto error;
+     }
+ 
+-    if (type == VIR_DOMAIN_VIRT_KVM)
+-        qemuCaps->kvmCPUModel = cpu;
+-    else
+-        qemuCaps->tcgCPUModel = cpu;
+    virQEMUCapsSetHostModel(qemuCaps, type, cpu);
+ 
+  cleanup:
+     virCPUDefFree(hostCPU);
@@ -0,0 +1,70 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Fri, 7 Apr 2017 17:40:31 +0200
+Subject: [PATCH] qemu: Move qemuCaps CPU data copying into a separate function
+
+This introduces virQEMUCapsHostCPUDataCopy which will later be
+refactored a bit and called twice from virQEMUCapsNewCopy.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit 8be4346ca5ae4b568b3e8ce3de9cf46f2e94b416)
+---
+ src/qemu/qemu_capabilities.c | 39 +++++++++++++++++++++++++--------------
+ 1 file changed, 25 insertions(+), 14 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index f6020b86d..d17e0e8b8 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -2082,6 +2082,30 @@ virQEMUCapsNew(void)
+ }
+ 
+ 
+static int
+virQEMUCapsHostCPUDataCopy(virQEMUCapsPtr dst,
+                           virQEMUCapsPtr src)
+{
+    if (src->kvmCPUModel &&
+        !(dst->kvmCPUModel = virCPUDefCopy(src->kvmCPUModel)))
+        return -1;
+
+    if (src->tcgCPUModel &&
+        !(dst->tcgCPUModel = virCPUDefCopy(src->tcgCPUModel)))
+        return -1;
+
+    if (src->kvmCPUModelInfo &&
+        !(dst->kvmCPUModelInfo = qemuMonitorCPUModelInfoCopy(src->kvmCPUModelInfo)))
+        return -1;
+
+    if (src->tcgCPUModelInfo &&
+        !(dst->tcgCPUModelInfo = qemuMonitorCPUModelInfoCopy(src->tcgCPUModelInfo)))
+        return -1;
+
+    return 0;
+}
+
+
+ virQEMUCapsPtr virQEMUCapsNewCopy(virQEMUCapsPtr qemuCaps)
+ {
+     virQEMUCapsPtr ret = virQEMUCapsNew();
+@@ -2119,20 +2143,7 @@ virQEMUCapsPtr virQEMUCapsNewCopy(virQEMUCapsPtr qemuCaps)
+             goto error;
+     }
+ 
+-    if (qemuCaps->kvmCPUModel &&
+-        !(ret->kvmCPUModel = virCPUDefCopy(qemuCaps->kvmCPUModel)))
+-        goto error;
+-
+-    if (qemuCaps->tcgCPUModel &&
+-        !(ret->tcgCPUModel = virCPUDefCopy(qemuCaps->tcgCPUModel)))
+-        goto error;
+-
+-    if (qemuCaps->kvmCPUModelInfo &&
+-        !(ret->kvmCPUModelInfo = qemuMonitorCPUModelInfoCopy(qemuCaps->kvmCPUModelInfo)))
+-        goto error;
+-
+-    if (qemuCaps->tcgCPUModelInfo &&
+-        !(ret->tcgCPUModelInfo = qemuMonitorCPUModelInfoCopy(qemuCaps->tcgCPUModelInfo)))
+    if (virQEMUCapsHostCPUDataCopy(ret, qemuCaps) < 0)
+         goto error;
+ 
+     if (VIR_ALLOC_N(ret->machineTypes, qemuCaps->nmachineTypes) < 0)
@@ -0,0 +1,67 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Fri, 7 Apr 2017 17:43:59 +0200
+Subject: [PATCH] qemu: Introduce virQEMUCapsHostCPUDataClear
+
+To keep freeing of host CPU data in one place.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit b0605e848724c5dc478382398b734398abff674c)
+---
+ src/qemu/qemu_capabilities.c | 30 +++++++++++++++++-------------
+ 1 file changed, 17 insertions(+), 13 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index d17e0e8b8..2da53a60b 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -2106,6 +2106,21 @@ virQEMUCapsHostCPUDataCopy(virQEMUCapsPtr dst,
+ }
+ 
+ 
+static void
+virQEMUCapsHostCPUDataClear(virQEMUCapsPtr qemuCaps)
+{
+    qemuMonitorCPUModelInfoFree(qemuCaps->kvmCPUModelInfo);
+    qemuMonitorCPUModelInfoFree(qemuCaps->tcgCPUModelInfo);
+    qemuCaps->kvmCPUModelInfo = NULL;
+    qemuCaps->tcgCPUModelInfo = NULL;
+
+    virCPUDefFree(qemuCaps->kvmCPUModel);
+    virCPUDefFree(qemuCaps->tcgCPUModel);
+    qemuCaps->kvmCPUModel = NULL;
+    qemuCaps->tcgCPUModel = NULL;
+}
+
+
+ virQEMUCapsPtr virQEMUCapsNewCopy(virQEMUCapsPtr qemuCaps)
+ {
+     virQEMUCapsPtr ret = virQEMUCapsNew();
+@@ -2192,10 +2207,7 @@ void virQEMUCapsDispose(void *obj)
+ 
+     VIR_FREE(qemuCaps->gicCapabilities);
+ 
+-    qemuMonitorCPUModelInfoFree(qemuCaps->kvmCPUModelInfo);
+-    qemuMonitorCPUModelInfoFree(qemuCaps->tcgCPUModelInfo);
+-    virCPUDefFree(qemuCaps->kvmCPUModel);
+-    virCPUDefFree(qemuCaps->tcgCPUModel);
+    virQEMUCapsHostCPUDataClear(qemuCaps);
+ }
+ 
+ void
+@@ -4068,15 +4080,7 @@ virQEMUCapsReset(virQEMUCapsPtr qemuCaps)
+     VIR_FREE(qemuCaps->gicCapabilities);
+     qemuCaps->ngicCapabilities = 0;
+ 
+-    qemuMonitorCPUModelInfoFree(qemuCaps->kvmCPUModelInfo);
+-    qemuMonitorCPUModelInfoFree(qemuCaps->tcgCPUModelInfo);
+-    qemuCaps->kvmCPUModelInfo = NULL;
+-    qemuCaps->tcgCPUModelInfo = NULL;
+-
+-    virCPUDefFree(qemuCaps->kvmCPUModel);
+-    virCPUDefFree(qemuCaps->tcgCPUModel);
+-    qemuCaps->kvmCPUModel = NULL;
+-    qemuCaps->tcgCPUModel = NULL;
+    virQEMUCapsHostCPUDataClear(qemuCaps);
+ }
+ 
+ 
@@ -0,0 +1,342 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Fri, 7 Apr 2017 18:15:26 +0200
+Subject: [PATCH] qemu: Move qemuCaps host CPU data in a struct
+
+We need to store several CPU related data structure for both KVM and
+TCG. So instead of keeping two different copies of everything let's
+make a virQEMUCapsHostCPUData struct and use it twice.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit b0a84ffb7f38f990120c231cfb74956a0ed10d95)
+---
+ src/qemu/qemu_capabilities.c | 168 +++++++++++++++++++++----------------------
+ 1 file changed, 82 insertions(+), 86 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index 2da53a60b..bbb234538 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -373,6 +373,19 @@ struct virQEMUCapsMachineType {
+     unsigned int maxCpus;
+     bool hotplugCpus;
+ };
+
+typedef struct _virQEMUCapsHostCPUData virQEMUCapsHostCPUData;
+typedef virQEMUCapsHostCPUData *virQEMUCapsHostCPUDataPtr;
+struct _virQEMUCapsHostCPUData {
+    /* Only the "info" part is stored in the capabilities cache, the rest is
+     * re-computed from other fields and external data sources everytime we
+     * probe QEMU or load the cache.
+     */
+    qemuMonitorCPUModelInfoPtr info;
+    /* Host CPU definition reported in domain capabilities. */
+    virCPUDefPtr reported;
+};
+
+ /*
+  * Update the XML parser/formatter when adding more
+  * information to this struct so that it gets cached
+@@ -407,15 +420,8 @@ struct _virQEMUCaps {
+     size_t ngicCapabilities;
+     virGICCapability *gicCapabilities;
+ 
+-    qemuMonitorCPUModelInfoPtr kvmCPUModelInfo;
+-    qemuMonitorCPUModelInfoPtr tcgCPUModelInfo;
+-
+-    /* Anything below is not stored in the cache since the values are
+-     * re-computed from the other fields or external data sources every
+-     * time we probe QEMU or load the results from the cache.
+-     */
+-    virCPUDefPtr kvmCPUModel;
+-    virCPUDefPtr tcgCPUModel;
+    virQEMUCapsHostCPUData kvmCPU;
+    virQEMUCapsHostCPUData tcgCPU;
+ };
+ 
+ struct virQEMUCapsSearchData {
+@@ -2083,23 +2089,15 @@ virQEMUCapsNew(void)
+ 
+ 
+ static int
+-virQEMUCapsHostCPUDataCopy(virQEMUCapsPtr dst,
+-                           virQEMUCapsPtr src)
+virQEMUCapsHostCPUDataCopy(virQEMUCapsHostCPUDataPtr dst,
+                           virQEMUCapsHostCPUDataPtr src)
+ {
+-    if (src->kvmCPUModel &&
+-        !(dst->kvmCPUModel = virCPUDefCopy(src->kvmCPUModel)))
+    if (src->info &&
+        !(dst->info = qemuMonitorCPUModelInfoCopy(src->info)))
+         return -1;
+ 
+-    if (src->tcgCPUModel &&
+-        !(dst->tcgCPUModel = virCPUDefCopy(src->tcgCPUModel)))
+-        return -1;
+-
+-    if (src->kvmCPUModelInfo &&
+-        !(dst->kvmCPUModelInfo = qemuMonitorCPUModelInfoCopy(src->kvmCPUModelInfo)))
+-        return -1;
+-
+-    if (src->tcgCPUModelInfo &&
+-        !(dst->tcgCPUModelInfo = qemuMonitorCPUModelInfoCopy(src->tcgCPUModelInfo)))
+    if (src->reported &&
+        !(dst->reported = virCPUDefCopy(src->reported)))
+         return -1;
+ 
+     return 0;
+@@ -2107,17 +2105,12 @@ virQEMUCapsHostCPUDataCopy(virQEMUCapsPtr dst,
+ 
+ 
+ static void
+-virQEMUCapsHostCPUDataClear(virQEMUCapsPtr qemuCaps)
+virQEMUCapsHostCPUDataClear(virQEMUCapsHostCPUDataPtr cpuData)
+ {
+-    qemuMonitorCPUModelInfoFree(qemuCaps->kvmCPUModelInfo);
+-    qemuMonitorCPUModelInfoFree(qemuCaps->tcgCPUModelInfo);
+-    qemuCaps->kvmCPUModelInfo = NULL;
+-    qemuCaps->tcgCPUModelInfo = NULL;
+-
+-    virCPUDefFree(qemuCaps->kvmCPUModel);
+-    virCPUDefFree(qemuCaps->tcgCPUModel);
+-    qemuCaps->kvmCPUModel = NULL;
+-    qemuCaps->tcgCPUModel = NULL;
+    qemuMonitorCPUModelInfoFree(cpuData->info);
+    virCPUDefFree(cpuData->reported);
+
+    memset(cpuData, 0, sizeof(*cpuData));
+ }
+ 
+ 
+@@ -2158,7 +2151,8 @@ virQEMUCapsPtr virQEMUCapsNewCopy(virQEMUCapsPtr qemuCaps)
+             goto error;
+     }
+ 
+-    if (virQEMUCapsHostCPUDataCopy(ret, qemuCaps) < 0)
+    if (virQEMUCapsHostCPUDataCopy(&ret->kvmCPU, &qemuCaps->kvmCPU) < 0 ||
+        virQEMUCapsHostCPUDataCopy(&ret->tcgCPU, &qemuCaps->tcgCPU) < 0)
+         goto error;
+ 
+     if (VIR_ALLOC_N(ret->machineTypes, qemuCaps->nmachineTypes) < 0)
+@@ -2207,7 +2201,8 @@ void virQEMUCapsDispose(void *obj)
+ 
+     VIR_FREE(qemuCaps->gicCapabilities);
+ 
+-    virQEMUCapsHostCPUDataClear(qemuCaps);
+    virQEMUCapsHostCPUDataClear(&qemuCaps->kvmCPU);
+    virQEMUCapsHostCPUDataClear(&qemuCaps->tcgCPU);
+ }
+ 
+ void
+@@ -2431,14 +2426,24 @@ virQEMUCapsGetCPUDefinitions(virQEMUCapsPtr qemuCaps,
+ }
+ 
+ 
+static virQEMUCapsHostCPUDataPtr
+virQEMUCapsGetHostCPUData(virQEMUCapsPtr qemuCaps,
+                          virDomainVirtType type)
+{
+    if (type == VIR_DOMAIN_VIRT_KVM)
+        return &qemuCaps->kvmCPU;
+    else
+        return &qemuCaps->tcgCPU;
+}
+
+
+ virCPUDefPtr
+ virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+                         virDomainVirtType type)
+ {
+-    if (type == VIR_DOMAIN_VIRT_KVM)
+-        return qemuCaps->kvmCPUModel;
+-    else
+-        return qemuCaps->tcgCPUModel;
+    virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
+
+    return cpuData->reported;
+ }
+ 
+ 
+@@ -2447,10 +2452,9 @@ virQEMUCapsSetHostModel(virQEMUCapsPtr qemuCaps,
+                         virDomainVirtType type,
+                         virCPUDefPtr cpu)
+ {
+-    if (type == VIR_DOMAIN_VIRT_KVM)
+-        qemuCaps->kvmCPUModel = cpu;
+-    else
+-        qemuCaps->tcgCPUModel = cpu;
+    virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
+
+    cpuData->reported = cpu;
+ }
+ 
+ 
+@@ -2841,24 +2845,28 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
+                            qemuMonitorPtr mon,
+                            bool tcg)
+ {
+-    qemuMonitorCPUModelInfoPtr *modelInfo;
+    qemuMonitorCPUModelInfoPtr modelInfo = NULL;
+     qemuMonitorCPUModelInfoPtr nonMigratable = NULL;
+     virHashTablePtr hash = NULL;
+     const char *model;
+     qemuMonitorCPUModelExpansionType type;
+    virDomainVirtType virtType;
+    virQEMUCapsHostCPUDataPtr cpuData;
+     int ret = -1;
+ 
+     if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION))
+         return 0;
+ 
+     if (tcg || !virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
+-        modelInfo = &qemuCaps->tcgCPUModelInfo;
+        virtType = VIR_DOMAIN_VIRT_QEMU;
+         model = "max";
+     } else {
+-        modelInfo = &qemuCaps->kvmCPUModelInfo;
+        virtType = VIR_DOMAIN_VIRT_KVM;
+         model = "host";
+     }
+ 
+    cpuData = virQEMUCapsGetHostCPUData(qemuCaps, virtType);
+
+     /* Some x86_64 features defined in cpu_map.xml use spelling which differ
+      * from the one preferred by QEMU. Static expansion would give us only the
+      * preferred spelling, thus we need to do a full expansion on the result of
+@@ -2869,14 +2877,14 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
+     else
+         type = QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC;
+ 
+-    if (qemuMonitorGetCPUModelExpansion(mon, type, model, true, modelInfo) < 0)
+-        return -1;
+    if (qemuMonitorGetCPUModelExpansion(mon, type, model, true, &modelInfo) < 0)
+        goto cleanup;
+ 
+     /* Try to check migratability of each feature. */
+-    if (*modelInfo &&
+    if (modelInfo &&
+         qemuMonitorGetCPUModelExpansion(mon, type, model, false,
+                                         &nonMigratable) < 0)
+-        goto error;
+        goto cleanup;
+ 
+     if (nonMigratable) {
+         qemuMonitorCPUPropertyPtr prop;
+@@ -2884,12 +2892,12 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
+         size_t i;
+ 
+         if (!(hash = virHashCreate(0, NULL)))
+-            goto error;
+            goto cleanup;
+ 
+-        for (i = 0; i < (*modelInfo)->nprops; i++) {
+-            prop = (*modelInfo)->props + i;
+        for (i = 0; i < modelInfo->nprops; i++) {
+            prop = modelInfo->props + i;
+             if (virHashAddEntry(hash, prop->name, prop) < 0)
+-                goto error;
+                goto cleanup;
+         }
+ 
+         for (i = 0; i < nonMigratable->nprops; i++) {
+@@ -2907,21 +2915,18 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
+             }
+         }
+ 
+-        (*modelInfo)->migratability = true;
+        modelInfo->migratability = true;
+     }
+ 
+    VIR_STEAL_PTR(cpuData->info, modelInfo);
+     ret = 0;
+ 
+  cleanup:
+     virHashFree(hash);
+     qemuMonitorCPUModelInfoFree(nonMigratable);
+    qemuMonitorCPUModelInfoFree(modelInfo);
+ 
+     return ret;
+-
+- error:
+-    qemuMonitorCPUModelInfoFree(*modelInfo);
+-    *modelInfo = NULL;
+-    goto cleanup;
+ }
+ 
+ struct tpmTypeToCaps {
+@@ -3274,21 +3279,19 @@ virQEMUCapsInitCPUModel(virQEMUCapsPtr qemuCaps,
+                         virCPUDefPtr cpu,
+                         bool migratable)
+ {
+-    qemuMonitorCPUModelInfoPtr model;
+    virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
+     int ret = 1;
+ 
+-    if (type == VIR_DOMAIN_VIRT_KVM)
+-        model = qemuCaps->kvmCPUModelInfo;
+-    else
+-        model = qemuCaps->tcgCPUModelInfo;
+-
+-    if (migratable && model && !model->migratability)
+    if (migratable && cpuData->info && !cpuData->info->migratability)
+         return 1;
+ 
+-    if (ARCH_IS_S390(qemuCaps->arch))
+-        ret = virQEMUCapsInitCPUModelS390(qemuCaps, model, cpu, migratable);
+-    else if (ARCH_IS_X86(qemuCaps->arch))
+-        ret = virQEMUCapsInitCPUModelX86(qemuCaps, type, model, cpu, migratable);
+    if (ARCH_IS_S390(qemuCaps->arch)) {
+        ret = virQEMUCapsInitCPUModelS390(qemuCaps, cpuData->info,
+                                          cpu, migratable);
+    } else if (ARCH_IS_X86(qemuCaps->arch)) {
+        ret = virQEMUCapsInitCPUModelX86(qemuCaps, type, cpuData->info,
+                                         cpu, migratable);
+    }
+ 
+     if (ret == 0)
+         cpu->fallback = VIR_CPU_FALLBACK_FORBID;
+@@ -3348,10 +3351,9 @@ virQEMUCapsSetCPUModelInfo(virQEMUCapsPtr qemuCaps,
+                            virDomainVirtType type,
+                            qemuMonitorCPUModelInfoPtr modelInfo)
+ {
+-    if (type == VIR_DOMAIN_VIRT_KVM)
+-        qemuCaps->kvmCPUModelInfo = modelInfo;
+-    else
+-        qemuCaps->tcgCPUModelInfo = modelInfo;
+    virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
+
+    cpuData->info = modelInfo;
+ }
+ 
+ 
+@@ -3810,18 +3812,11 @@ virQEMUCapsFormatHostCPUModelInfo(virQEMUCapsPtr qemuCaps,
+                                   virBufferPtr buf,
+                                   virDomainVirtType type)
+ {
+-    qemuMonitorCPUModelInfoPtr model;
+-    const char *typeStr;
+    virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
+    qemuMonitorCPUModelInfoPtr model = cpuData->info;
+    const char *typeStr = type == VIR_DOMAIN_VIRT_KVM ? "kvm" : "tcg";
+     size_t i;
+ 
+-    if (type == VIR_DOMAIN_VIRT_KVM) {
+-        typeStr = "kvm";
+-        model = qemuCaps->kvmCPUModelInfo;
+-    } else {
+-        typeStr = "tcg";
+-        model = qemuCaps->tcgCPUModelInfo;
+-    }
+-
+     if (!model)
+         return;
+ 
+@@ -4080,7 +4075,8 @@ virQEMUCapsReset(virQEMUCapsPtr qemuCaps)
+     VIR_FREE(qemuCaps->gicCapabilities);
+     qemuCaps->ngicCapabilities = 0;
+ 
+-    virQEMUCapsHostCPUDataClear(qemuCaps);
+    virQEMUCapsHostCPUDataClear(&qemuCaps->kvmCPU);
+    virQEMUCapsHostCPUDataClear(&qemuCaps->tcgCPU);
+ }
+ 
+ 
@@ -0,0 +1,119 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Tue, 11 Apr 2017 11:14:30 +0200
+Subject: [PATCH] qemu: Prepare qemuCaps for multiple host CPU defs
+
+Soon we will need to store multiple host CPU definitions in
+virQEMUCapsHostCPUData and qemuCaps users will want to request the one
+they need. This patch introduces virQEMUCapsHostCPUType enum which will
+be used for specifying the requested CPU definition.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit 1fe517c68df92eb7f379fa87cb0d29d566aad6f4)
+---
+ src/qemu/qemu_capabilities.c | 16 ++++++++++++----
+ src/qemu/qemu_capabilities.h | 10 +++++++++-
+ src/qemu/qemu_command.c      |  3 ++-
+ src/qemu/qemu_process.c      |  6 ++++--
+ 4 files changed, 27 insertions(+), 8 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index bbb234538..a6324a398 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -2439,11 +2439,17 @@ virQEMUCapsGetHostCPUData(virQEMUCapsPtr qemuCaps,
+ 
+ virCPUDefPtr
+ virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+-                        virDomainVirtType type)
+                        virDomainVirtType type,
+                        virQEMUCapsHostCPUType cpuType)
+ {
+     virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
+ 
+-    return cpuData->reported;
+    switch (cpuType) {
+    case VIR_QEMU_CAPS_HOST_CPU_REPORTED:
+        return cpuData->reported;
+    }
+
+    return NULL;
+ }
+ 
+ 
+@@ -2472,7 +2478,8 @@ virQEMUCapsIsCPUModeSupported(virQEMUCapsPtr qemuCaps,
+                virQEMUCapsGuestIsNative(caps->host.arch, qemuCaps->arch);
+ 
+     case VIR_CPU_MODE_HOST_MODEL:
+-        return !!virQEMUCapsGetHostModel(qemuCaps, type);
+        return !!virQEMUCapsGetHostModel(qemuCaps, type,
+                                         VIR_QEMU_CAPS_HOST_CPU_REPORTED);
+ 
+     case VIR_CPU_MODE_CUSTOM:
+         if (type == VIR_DOMAIN_VIRT_KVM)
+@@ -5456,7 +5463,8 @@ virQEMUCapsFillDomainCPUCaps(virCapsPtr caps,
+ 
+     if (virQEMUCapsIsCPUModeSupported(qemuCaps, caps, domCaps->virttype,
+                                       VIR_CPU_MODE_HOST_MODEL)) {
+-        virCPUDefPtr cpu = virQEMUCapsGetHostModel(qemuCaps, domCaps->virttype);
+        virCPUDefPtr cpu = virQEMUCapsGetHostModel(qemuCaps, domCaps->virttype,
+                                                   VIR_QEMU_CAPS_HOST_CPU_REPORTED);
+         domCaps->cpu.hostModel = virCPUDefCopy(cpu);
+     }
+ 
+diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
+index d44682f2a..88e27855b 100644
+--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
+@@ -449,8 +449,16 @@ int virQEMUCapsGetCPUDefinitions(virQEMUCapsPtr qemuCaps,
+                                  virDomainVirtType type,
+                                  char ***names,
+                                  size_t *count);
+
+typedef enum {
+    /* Host CPU definition reported in domain capabilities. */
+    VIR_QEMU_CAPS_HOST_CPU_REPORTED,
+} virQEMUCapsHostCPUType;
+
+ virCPUDefPtr virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+-                                     virDomainVirtType type);
+                                     virDomainVirtType type,
+                                     virQEMUCapsHostCPUType cpuType);
+
+ bool virQEMUCapsIsCPUModeSupported(virQEMUCapsPtr qemuCaps,
+                                    virCapsPtr caps,
+                                    virDomainVirtType type,
+diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
+index 3abfe7b55..311edd13e 100644
+--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
+@@ -6879,7 +6879,8 @@ qemuBuildCpuCommandLine(virCommandPtr cmd,
+             if (def->cpu->mode == VIR_CPU_MODE_CUSTOM)
+                 cpuDef = def->cpu;
+             else if (def->cpu->mode == VIR_CPU_MODE_HOST_PASSTHROUGH)
+-                cpuDef = virQEMUCapsGetHostModel(qemuCaps, def->virtType);
+                cpuDef = virQEMUCapsGetHostModel(qemuCaps, def->virtType,
+                                                 VIR_QEMU_CAPS_HOST_CPU_REPORTED);
+ 
+             if (cpuDef) {
+                 int svm = virCPUCheckFeature(def->os.arch, cpuDef, "svm");
+diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
+index 26a668d27..07a88a3a7 100644
+--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
+@@ -5299,12 +5299,14 @@ qemuProcessUpdateGuestCPU(virDomainDefPtr def,
+ 
+     if (def->cpu->check == VIR_CPU_CHECK_PARTIAL &&
+         virCPUCompare(caps->host.arch,
+-                      virQEMUCapsGetHostModel(qemuCaps, def->virtType),
+                      virQEMUCapsGetHostModel(qemuCaps, def->virtType,
+                                              VIR_QEMU_CAPS_HOST_CPU_REPORTED),
+                       def->cpu, true) < 0)
+         return -1;
+ 
+     if (virCPUUpdate(def->os.arch, def->cpu,
+-                     virQEMUCapsGetHostModel(qemuCaps, def->virtType)) < 0)
+                     virQEMUCapsGetHostModel(qemuCaps, def->virtType,
+                                             VIR_QEMU_CAPS_HOST_CPU_REPORTED)) < 0)
+         goto cleanup;
+ 
+     if (virQEMUCapsGetCPUDefinitions(qemuCaps, def->virtType,
@@ -0,0 +1,210 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Wed, 29 Mar 2017 15:31:17 +0200
+Subject: [PATCH] qemu: Pass migratable host CPU model to virCPUUpdate
+
+We already know from QEMU which CPU features will block migration. Let's
+use this information to make a migratable copy of the host CPU model and
+use it for updating guest CPU specification. This will allow us to drop
+feature filtering from virCPUUpdate where it was just a hack.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit 56bd7edcb5dc878beffb80d4e6a9cfb812378ded)
+---
+ src/qemu/qemu_capabilities.c | 57 +++++++++++++++++++++++++++++++++++++-------
+ src/qemu/qemu_capabilities.h |  2 ++
+ src/qemu/qemu_process.c      |  2 +-
+ tests/cputest.c              |  7 +++++-
+ 4 files changed, 57 insertions(+), 11 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index a6324a398..7fc577546 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -384,6 +384,8 @@ struct _virQEMUCapsHostCPUData {
+     qemuMonitorCPUModelInfoPtr info;
+     /* Host CPU definition reported in domain capabilities. */
+     virCPUDefPtr reported;
+    /* Migratable host CPU definition used for updating guest CPU. */
+    virCPUDefPtr migratable;
+ };
+ 
+ /*
+@@ -2100,6 +2102,10 @@ virQEMUCapsHostCPUDataCopy(virQEMUCapsHostCPUDataPtr dst,
+         !(dst->reported = virCPUDefCopy(src->reported)))
+         return -1;
+ 
+    if (src->migratable &&
+        !(dst->migratable = virCPUDefCopy(src->migratable)))
+        return -1;
+
+     return 0;
+ }
+ 
+@@ -2109,6 +2115,7 @@ virQEMUCapsHostCPUDataClear(virQEMUCapsHostCPUDataPtr cpuData)
+ {
+     qemuMonitorCPUModelInfoFree(cpuData->info);
+     virCPUDefFree(cpuData->reported);
+    virCPUDefFree(cpuData->migratable);
+ 
+     memset(cpuData, 0, sizeof(*cpuData));
+ }
+@@ -2447,6 +2454,9 @@ virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+     switch (cpuType) {
+     case VIR_QEMU_CAPS_HOST_CPU_REPORTED:
+         return cpuData->reported;
+
+    case VIR_QEMU_CAPS_HOST_CPU_MIGRATABLE:
+        return cpuData->migratable;
+     }
+ 
+     return NULL;
+@@ -2456,11 +2466,13 @@ virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+ static void
+ virQEMUCapsSetHostModel(virQEMUCapsPtr qemuCaps,
+                         virDomainVirtType type,
+-                        virCPUDefPtr cpu)
+                        virCPUDefPtr reported,
+                        virCPUDefPtr migratable)
+ {
+     virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
+ 
+-    cpuData->reported = cpu;
+    cpuData->reported = reported;
+    cpuData->migratable = migratable;
+ }
+ 
+ 
+@@ -3307,26 +3319,39 @@ virQEMUCapsInitCPUModel(virQEMUCapsPtr qemuCaps,
+ }
+ 
+ 
+static virCPUDefPtr
+virQEMUCapsNewHostCPUModel(void)
+{
+    virCPUDefPtr cpu;
+
+    if (VIR_ALLOC(cpu) < 0)
+        return NULL;
+
+    cpu->type = VIR_CPU_TYPE_GUEST;
+    cpu->mode = VIR_CPU_MODE_CUSTOM;
+    cpu->match = VIR_CPU_MATCH_EXACT;
+    cpu->fallback = VIR_CPU_FALLBACK_ALLOW;
+
+    return cpu;
+}
+
+
+ void
+ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+                             virCapsPtr caps,
+                             virDomainVirtType type)
+ {
+     virCPUDefPtr cpu = NULL;
+    virCPUDefPtr migCPU = NULL;
+     virCPUDefPtr hostCPU = NULL;
+     int rc;
+ 
+     if (!caps || !virQEMUCapsGuestIsNative(caps->host.arch, qemuCaps->arch))
+         return;
+ 
+-    if (VIR_ALLOC(cpu) < 0)
+    if (!(cpu = virQEMUCapsNewHostCPUModel()))
+         goto error;
+ 
+-    cpu->type = VIR_CPU_TYPE_GUEST;
+-    cpu->mode = VIR_CPU_MODE_CUSTOM;
+-    cpu->match = VIR_CPU_MATCH_EXACT;
+-    cpu->fallback = VIR_CPU_FALLBACK_ALLOW;
+-
+     if ((rc = virQEMUCapsInitCPUModel(qemuCaps, type, cpu, false)) < 0) {
+         goto error;
+     } else if (rc == 1) {
+@@ -3340,7 +3365,20 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+             goto error;
+     }
+ 
+-    virQEMUCapsSetHostModel(qemuCaps, type, cpu);
+    if (!(migCPU = virQEMUCapsNewHostCPUModel()))
+        goto error;
+
+    if ((rc = virQEMUCapsInitCPUModel(qemuCaps, type, migCPU, true)) < 0) {
+        goto error;
+    } else if (rc == 1) {
+        VIR_DEBUG("CPU migratability not provided by QEMU");
+
+        virCPUDefFree(migCPU);
+        if (!(migCPU = virCPUCopyMigratable(qemuCaps->arch, cpu)))
+            goto error;
+    }
+
+    virQEMUCapsSetHostModel(qemuCaps, type, cpu, migCPU);
+ 
+  cleanup:
+     virCPUDefFree(hostCPU);
+@@ -3348,6 +3386,7 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+ 
+  error:
+     virCPUDefFree(cpu);
+    virCPUDefFree(migCPU);
+     virResetLastError();
+     goto cleanup;
+ }
+diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
+index 88e27855b..31818c940 100644
+--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
+@@ -453,6 +453,8 @@ int virQEMUCapsGetCPUDefinitions(virQEMUCapsPtr qemuCaps,
+ typedef enum {
+     /* Host CPU definition reported in domain capabilities. */
+     VIR_QEMU_CAPS_HOST_CPU_REPORTED,
+    /* Migratable host CPU definition used for updating guest CPU. */
+    VIR_QEMU_CAPS_HOST_CPU_MIGRATABLE,
+ } virQEMUCapsHostCPUType;
+ 
+ virCPUDefPtr virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
+index 07a88a3a7..e67736638 100644
+--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
+@@ -5306,7 +5306,7 @@ qemuProcessUpdateGuestCPU(virDomainDefPtr def,
+ 
+     if (virCPUUpdate(def->os.arch, def->cpu,
+                      virQEMUCapsGetHostModel(qemuCaps, def->virtType,
+-                                             VIR_QEMU_CAPS_HOST_CPU_REPORTED)) < 0)
+                                             VIR_QEMU_CAPS_HOST_CPU_MIGRATABLE)) < 0)
+         goto cleanup;
+ 
+     if (virQEMUCapsGetCPUDefinitions(qemuCaps, def->virtType,
+diff --git a/tests/cputest.c b/tests/cputest.c
+index 8c07cf4f6..efa891dc1 100644
+--- a/tests/cputest.c
+++ b/tests/cputest.c
+@@ -393,6 +393,7 @@ cpuTestUpdate(const void *arg)
+     const struct data *data = arg;
+     int ret = -1;
+     virCPUDefPtr host = NULL;
+    virCPUDefPtr migHost = NULL;
+     virCPUDefPtr cpu = NULL;
+     char *result = NULL;
+ 
+@@ -400,7 +401,10 @@ cpuTestUpdate(const void *arg)
+         !(cpu = cpuTestLoadXML(data->arch, data->name)))
+         goto cleanup;
+ 
+-    if (virCPUUpdate(host->arch, cpu, host) < 0)
+    if (!(migHost = virCPUCopyMigratable(data->arch, host)))
+        goto cleanup;
+
+    if (virCPUUpdate(host->arch, cpu, migHost) < 0)
+         goto cleanup;
+ 
+     if (virAsprintf(&result, "%s+%s", data->host, data->name) < 0)
+@@ -411,6 +415,7 @@ cpuTestUpdate(const void *arg)
+  cleanup:
+     virCPUDefFree(host);
+     virCPUDefFree(cpu);
+    virCPUDefFree(migHost);
+     VIR_FREE(result);
+     return ret;
+ }
@@ -0,0 +1,49 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Wed, 29 Mar 2017 15:00:21 +0200
+Subject: [PATCH] cpu: Drop feature filtering from virCPUUpdate
+
+Because of the changes done in the previous commit, @host is already a
+migratable CPU and there's no need to do any additional filtering.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit 232d87c7dd081d126a079fb45178e0be096cc680)
+---
+ src/cpu/cpu_x86.c | 9 +++------
+ 1 file changed, 3 insertions(+), 6 deletions(-)
+
+diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
+index a771b251e..53359ff9b 100644
+--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
+@@ -2549,8 +2549,7 @@ x86Baseline(virCPUDefPtr *cpus,
+ 
+ static int
+ x86UpdateHostModel(virCPUDefPtr guest,
+-                   const virCPUDef *host,
+-                   virCPUx86MapPtr map)
+                   const virCPUDef *host)
+ {
+     virCPUDefPtr updated = NULL;
+     size_t i;
+@@ -2559,11 +2558,9 @@ x86UpdateHostModel(virCPUDefPtr guest,
+     if (!(updated = virCPUDefCopyWithoutModel(host)))
+         goto cleanup;
+ 
+-    /* Remove non-migratable features by default */
+     updated->type = VIR_CPU_TYPE_GUEST;
+     updated->mode = VIR_CPU_MODE_CUSTOM;
+-    if (virCPUDefCopyModelFilter(updated, host, true,
+-                                 x86FeatureIsMigratable, map) < 0)
+    if (virCPUDefCopyModel(updated, host, true) < 0)
+         goto cleanup;
+ 
+     if (guest->vendor_id) {
+@@ -2627,7 +2624,7 @@ virCPUx86Update(virCPUDefPtr guest,
+ 
+     if (guest->mode == VIR_CPU_MODE_HOST_MODEL ||
+         guest->match == VIR_CPU_MATCH_MINIMUM)
+-        ret = x86UpdateHostModel(guest, host, map);
+        ret = x86UpdateHostModel(guest, host);
+     else
+         ret = 0;
+ 
@@ -0,0 +1,74 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Tue, 11 Apr 2017 20:45:07 +0200
+Subject: [PATCH] cpu: Introduce virCPUGetHostIsSupported
+
+Sometimes we want to call virCPUGetHost only when it is implemented for
+a given architecture to avoid logging expected and possibly misleading
+errors. The new virCPUGetHostIsSupported API may be used to guard such
+calls to virCPUGetHost.
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit bf1a881715c905c67f7d38dcd5bd6c2afbff1f9b)
+---
+ src/cpu/cpu.c            | 20 ++++++++++++++++++++
+ src/cpu/cpu.h            |  3 +++
+ src/libvirt_private.syms |  1 +
+ 3 files changed, 24 insertions(+)
+
+diff --git a/src/cpu/cpu.c b/src/cpu/cpu.c
+index 8a407ac18..702b14dbb 100644
+--- a/src/cpu/cpu.c
+++ b/src/cpu/cpu.c
+@@ -357,6 +357,26 @@ virCPUDataFree(virCPUDataPtr data)
+ }
+ 
+ 
+/**
+ * virCPUGetHostIsSupported:
+ *
+ * @arch: CPU architecture
+ *
+ * Check whether virCPUGetHost is supported for @arch.
+ *
+ * Returns true if virCPUGetHost is supported, false otherwise.
+ */
+bool
+virCPUGetHostIsSupported(virArch arch)
+{
+    struct cpuArchDriver *driver;
+
+    VIR_DEBUG("arch=%s", virArchToString(arch));
+
+    return (driver = cpuGetSubDriver(arch)) && driver->getHost;
+}
+
+
+ /**
+  * virCPUGetHost:
+  *
+diff --git a/src/cpu/cpu.h b/src/cpu/cpu.h
+index 352445c40..c6ca111e9 100644
+--- a/src/cpu/cpu.h
+++ b/src/cpu/cpu.h
+@@ -183,6 +183,9 @@ virCPUDataNew(virArch arch);
+ void
+ virCPUDataFree(virCPUDataPtr data);
+ 
+bool
+virCPUGetHostIsSupported(virArch arch);
+
+ virCPUDefPtr
+ virCPUGetHost(virArch arch,
+               virCPUType type,
+diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
+index dc6db3b28..2d8a9ddec 100644
+--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
+@@ -1024,6 +1024,7 @@ virCPUDataNew;
+ virCPUDataParse;
+ virCPUExpandFeatures;
+ virCPUGetHost;
+virCPUGetHostIsSupported;
+ virCPUGetModels;
+ virCPUProbeHost;
+ virCPUTranslate;
@@ -0,0 +1,164 @@
+From: Jiri Denemark <jdenemar@redhat.com>
+Date: Tue, 11 Apr 2017 20:46:05 +0200
+Subject: [PATCH] qemu: Use more data for comparing CPUs
+
+With QEMU older than 2.9.0 libvirt uses CPUID instruction to determine
+what CPU features are supported on the host. This was later used when
+checking compatibility of guest CPUs. Since QEMU 2.9.0 we ask QEMU for
+the host CPU data. But the two methods we use usually provide disjoint
+sets of CPU features because QEMU/KVM does not support all features
+provided by the host CPU and on the other hand it can enable some
+feature even if the host CPU does not support them.
+
+So if there is a domain which requires a CPU features disabled by
+QEMU/KVM, libvirt will refuse to start it with QEMU > 2.9.0 as its guest
+CPU is incompatible with the host CPU data we got from QEMU. But such
+domain would happily start on older QEMU (of course, the features would
+be missing the guest CPU). To fix this regression, we need to combine
+both CPU feature sets when checking guest CPU compatibility.
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1439933
+
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit 5b4a6adb5ca24a6cb91cdc55c31506fb278d3a91)
+---
+ src/qemu/qemu_capabilities.c | 35 +++++++++++++++++++++++++++++++++--
+ src/qemu/qemu_capabilities.h |  4 ++++
+ src/qemu/qemu_process.c      |  2 +-
+ 3 files changed, 38 insertions(+), 3 deletions(-)
+
+diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
+index 7fc577546..01bd4750c 100644
+--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
+@@ -386,6 +386,10 @@ struct _virQEMUCapsHostCPUData {
+     virCPUDefPtr reported;
+     /* Migratable host CPU definition used for updating guest CPU. */
+     virCPUDefPtr migratable;
+    /* CPU definition with features detected by libvirt using virCPUGetHost
+     * combined with features reported by QEMU. This is used for backward
+     * compatible comparison between a guest CPU and a host CPU. */
+    virCPUDefPtr full;
+ };
+ 
+ /*
+@@ -2106,6 +2110,10 @@ virQEMUCapsHostCPUDataCopy(virQEMUCapsHostCPUDataPtr dst,
+         !(dst->migratable = virCPUDefCopy(src->migratable)))
+         return -1;
+ 
+    if (src->full &&
+        !(dst->full = virCPUDefCopy(src->full)))
+        return -1;
+
+     return 0;
+ }
+ 
+@@ -2116,6 +2124,7 @@ virQEMUCapsHostCPUDataClear(virQEMUCapsHostCPUDataPtr cpuData)
+     qemuMonitorCPUModelInfoFree(cpuData->info);
+     virCPUDefFree(cpuData->reported);
+     virCPUDefFree(cpuData->migratable);
+    virCPUDefFree(cpuData->full);
+ 
+     memset(cpuData, 0, sizeof(*cpuData));
+ }
+@@ -2457,6 +2466,11 @@ virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+ 
+     case VIR_QEMU_CAPS_HOST_CPU_MIGRATABLE:
+         return cpuData->migratable;
+
+    case VIR_QEMU_CAPS_HOST_CPU_FULL:
+        /* 'full' is non-NULL only if we have data from both QEMU and
+         * virCPUGetHost */
+        return cpuData->full ? cpuData->full : cpuData->reported;
+     }
+ 
+     return NULL;
+@@ -2467,12 +2481,14 @@ static void
+ virQEMUCapsSetHostModel(virQEMUCapsPtr qemuCaps,
+                         virDomainVirtType type,
+                         virCPUDefPtr reported,
+-                        virCPUDefPtr migratable)
+                        virCPUDefPtr migratable,
+                        virCPUDefPtr full)
+ {
+     virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
+ 
+     cpuData->reported = reported;
+     cpuData->migratable = migratable;
+    cpuData->full = full;
+ }
+ 
+ 
+@@ -3344,6 +3360,8 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+     virCPUDefPtr cpu = NULL;
+     virCPUDefPtr migCPU = NULL;
+     virCPUDefPtr hostCPU = NULL;
+    virCPUDefPtr fullCPU = NULL;
+    size_t i;
+     int rc;
+ 
+     if (!caps || !virQEMUCapsGuestIsNative(caps->host.arch, qemuCaps->arch))
+@@ -3363,6 +3381,18 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+                                      virQEMUCapsCPUFilterFeatures,
+                                      qemuCaps) < 0)
+             goto error;
+    } else if (type == VIR_DOMAIN_VIRT_KVM &&
+               virCPUGetHostIsSupported(qemuCaps->arch)) {
+        if (!(fullCPU = virCPUGetHost(qemuCaps->arch, VIR_CPU_TYPE_GUEST,
+                                      NULL, NULL, 0)))
+            goto error;
+
+        for (i = 0; i < cpu->nfeatures; i++) {
+            if (cpu->features[i].policy == VIR_CPU_FEATURE_REQUIRE &&
+                virCPUDefUpdateFeature(fullCPU, cpu->features[i].name,
+                                       VIR_CPU_FEATURE_REQUIRE) < 0)
+                goto error;
+        }
+     }
+ 
+     if (!(migCPU = virQEMUCapsNewHostCPUModel()))
+@@ -3378,7 +3408,7 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+             goto error;
+     }
+ 
+-    virQEMUCapsSetHostModel(qemuCaps, type, cpu, migCPU);
+    virQEMUCapsSetHostModel(qemuCaps, type, cpu, migCPU, fullCPU);
+ 
+  cleanup:
+     virCPUDefFree(hostCPU);
+@@ -3387,6 +3417,7 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
+  error:
+     virCPUDefFree(cpu);
+     virCPUDefFree(migCPU);
+    virCPUDefFree(fullCPU);
+     virResetLastError();
+     goto cleanup;
+ }
+diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
+index 31818c940..4e9561c0a 100644
+--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
+@@ -455,6 +455,10 @@ typedef enum {
+     VIR_QEMU_CAPS_HOST_CPU_REPORTED,
+     /* Migratable host CPU definition used for updating guest CPU. */
+     VIR_QEMU_CAPS_HOST_CPU_MIGRATABLE,
+    /* CPU definition with features detected by libvirt using virCPUGetHost
+     * combined with features reported by QEMU. This is used for backward
+     * compatible comparison between a guest CPU and a host CPU. */
+    VIR_QEMU_CAPS_HOST_CPU_FULL,
+ } virQEMUCapsHostCPUType;
+ 
+ virCPUDefPtr virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
+diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
+index e67736638..992a7174b 100644
+--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
+@@ -5300,7 +5300,7 @@ qemuProcessUpdateGuestCPU(virDomainDefPtr def,
+     if (def->cpu->check == VIR_CPU_CHECK_PARTIAL &&
+         virCPUCompare(caps->host.arch,
+                       virQEMUCapsGetHostModel(qemuCaps, def->virtType,
+-                                              VIR_QEMU_CAPS_HOST_CPU_REPORTED),
+                                              VIR_QEMU_CAPS_HOST_CPU_FULL),
+                       def->cpu, true) < 0)
+         return -1;
+ 
@@ -0,0 +1,123 @@
+From: Neal Gompa <ngompa13@gmail.com>
+Date: Mon, 17 Jul 2017 11:32:46 -0400
+Subject: [PATCH] spec: Add support for building the zfs storage driver
+
+Where it can be supported in Fedora, the driver is built and made
+available as a subpackage.
+
+Signed-off-by: Neal Gompa <ngompa13@gmail.com>
+(cherry picked from commit 9af764e86aef7dfb0191a9561bf1d1abf941da05)
+---
+ libvirt.spec.in | 50 +++++++++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 49 insertions(+), 1 deletion(-)
+
+diff --git a/libvirt.spec.in b/libvirt.spec.in
+index 079b5f386..46a3e97d1 100644
+--- a/libvirt.spec.in
+++ b/libvirt.spec.in
+@@ -71,6 +71,13 @@
+ %define with_storage_gluster 0%{!?_without_storage_gluster:1}
+ %define with_numactl          0%{!?_without_numactl:1}
+ 
+# F25+ has zfs-fuse
+%if 0%{?fedora} >= 25
+    %define with_storage_zfs      0%{!?_without_storage_zfs:1}
+%else
+    %define with_storage_zfs      0
+%endif
+
+ # A few optional bits off by default, we enable later
+ %define with_fuse          0%{!?_without_fuse:0}
+ %define with_cgconfig      0%{!?_without_cgconfig:0}
+@@ -115,6 +122,12 @@
+     %endif
+ %endif
+ 
+# zfs-fuse is not available on some architectures
+%ifarch s390 s390x aarch64
+    %define with_storage_zfs 0
+%endif
+
+
+ # RHEL doesn't ship OpenVZ, VBox, UML, PowerHypervisor,
+ # VMware, libxenserver (xenapi), libxenlight (Xen 4.1 and newer),
+ # or HyperV.
+@@ -373,6 +386,12 @@ BuildRequires: glusterfs-devel >= 3.4.1
+ %if %{with_storage_sheepdog}
+ BuildRequires: sheepdog
+ %endif
+%if %{with_storage_zfs}
+# Support any conforming implementation of zfs. On stock Fedora
+# this is zfs-fuse, but could be zfsonlinux upstream RPMs
+BuildRequires: /sbin/zfs
+BuildRequires: /sbin/zpool
+%endif
+ %if %{with_numactl}
+ # For QEMU/LXC numa info
+ BuildRequires: numactl-devel
+@@ -705,6 +724,21 @@ sheepdog volumes using.
+ %endif
+ 
+ 
+%if %{with_storage_zfs}
+%package daemon-driver-storage-zfs
+Summary: Storage driver plugin for ZFS
+Group: Development/Libraries
+Requires: libvirt-daemon-driver-storage-core = %{version}-%{release}
+# Support any conforming implementation of zfs
+Requires: /sbin/zfs
+Requires: /sbin/zpool
+
+%description daemon-driver-storage-zfs
+The storage driver backend adding implementation of the storage APIs for
+ZFS volumes.
+%endif
+
+
+ %package daemon-driver-storage
+ Summary: Storage driver plugin including all backends for the libvirtd daemon
+ Group: Development/Libraries
+@@ -723,6 +757,9 @@ Requires: libvirt-daemon-driver-storage-rbd = %{version}-%{release}
+ %if %{with_storage_sheepdog}
+ Requires: libvirt-daemon-driver-storage-sheepdog = %{version}-%{release}
+ %endif
+%if %{with_storage_zfs}
+Requires: libvirt-daemon-driver-storage-zfs = %{version}-%{release}
+%endif
+ 
+ %description daemon-driver-storage
+ The storage driver plugin for the libvirtd daemon, providing
+@@ -1180,6 +1217,12 @@ rm -rf .git
+     %define arg_storage_gluster --without-storage-gluster
+ %endif
+ 
+%if %{with_storage_zfs}
+    %define arg_storage_zfs --with-storage-zfs
+%else
+    %define arg_storage_zfs --without-storage-zfs
+%endif
+
+ %if %{with_numactl}
+     %define arg_numactl --with-numactl
+ %else
+@@ -1288,7 +1331,7 @@ rm -f po/stamp-po
+            %{?arg_storage_rbd} \
+            %{?arg_storage_sheepdog} \
+            %{?arg_storage_gluster} \
+-           --without-storage-zfs \
+           %{?arg_storage_zfs} \
+            --without-storage-vstorage \
+            %{?arg_numactl} \
+            %{?arg_numad} \
+@@ -1850,6 +1893,11 @@ exit 0
+ %{_libdir}/%{name}/storage-backend/libvirt_storage_backend_sheepdog.so
+ %endif
+ 
+%if %{with_storage_zfs}
+%files daemon-driver-storage-zfs
+%{_libdir}/%{name}/storage-backend/libvirt_storage_backend_zfs.so
+%endif
+
+ %if %{with_qemu}
+ %files daemon-driver-qemu
+ %dir %attr(0700, root, root) %{_sysconfdir}/libvirt/qemu/
@@ -0,0 +1,150 @@
+From: Juan Hernandez <jhernand@redhat.com>
+Date: Thu, 6 Jul 2017 17:03:31 +0200
+Subject: [PATCH] Avoid hidden cgroup mount points
+
+Currently the scan of the /proc/mounts file used to find cgroup mount
+points doesn't take into account that mount points may hidden by other
+mount points. For, example in certain Kubernetes environments the
+/proc/mounts contains the following lines:
+
+  cgroup /sys/fs/cgroup/net_prio,net_cls cgroup ...
+  tmpfs /sys/fs/cgroup tmpfs ...
+  cgroup /sys/fs/cgroup/net_cls,net_prio cgroup ...
+
+In this particular environment the first mount point is hidden by the
+second one. The correct mount point is the third one, but libvirt will
+never process it because it only checks the first mount point for each
+controller (net_cls in this case). So libvirt will try to use the first
+mount point, which doesn't actually exist, and the complete detection
+process will fail.
+
+To avoid that issue this patch changes the virCgroupDetectMountsFromFile
+function so that when there are duplicates it takes the information from
+the last line in /proc/mounts. This requires removing the previous
+explicit condition to skip duplicates, and adding code to free the
+memory used by the processing of duplicated lines.
+
+Related-To: https://bugzilla.redhat.com/1468214
+Related-To: https://github.com/kubevirt/libvirt/issues/4
+Signed-off-by: Juan Hernandez <jhernand@redhat.com>
+(cherry picked from commit dacd160d7479e0ec2d8a63f102145fd30636a1c8)
+---
+ src/util/vircgroup.c                | 23 ++++++++++++++---------
+ tests/vircgroupdata/kubevirt.mounts | 25 +++++++++++++++++++++++++
+ tests/vircgroupdata/kubevirt.parsed | 10 ++++++++++
+ tests/vircgrouptest.c               |  1 +
+ 4 files changed, 50 insertions(+), 9 deletions(-)
+ create mode 100644 tests/vircgroupdata/kubevirt.mounts
+ create mode 100644 tests/vircgroupdata/kubevirt.parsed
+
+diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
+index 5aa1db5b1..a53908fc9 100644
+--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
+@@ -397,6 +397,7 @@ virCgroupDetectMountsFromFile(virCgroupPtr group,
+             const char *typestr = virCgroupControllerTypeToString(i);
+             int typelen = strlen(typestr);
+             char *tmp = entry.mnt_opts;
+            struct virCgroupController *controller = &group->controllers[i];
+             while (tmp) {
+                 char *next = strchr(tmp, ',');
+                 int len;
+@@ -406,18 +407,22 @@ virCgroupDetectMountsFromFile(virCgroupPtr group,
+                 } else {
+                     len = strlen(tmp);
+                 }
+-                /* NB, the same controller can appear >1 time in mount list
+-                 * due to bind mounts from one location to another. Pick the
+-                 * first entry only
+-                 */
+-                if (typelen == len && STREQLEN(typestr, tmp, len) &&
+-                    !group->controllers[i].mountPoint) {
+
+                if (typelen == len && STREQLEN(typestr, tmp, len)) {
+                     char *linksrc;
+                     struct stat sb;
+                     char *tmp2;
+ 
+-                    if (VIR_STRDUP(group->controllers[i].mountPoint,
+-                                   entry.mnt_dir) < 0)
+                    /* Note that the lines in /proc/mounts have the same
+                     * order than the mount operations, and that there may
+                     * be duplicates due to bind mounts. This means
+                     * that the same mount point may be processed more than
+                     * once. We need to save the results of the last one,
+                     * and we need to be careful to release the memory used
+                     * by previous processing. */
+                    VIR_FREE(controller->mountPoint);
+                    VIR_FREE(controller->linkPoint);
+                    if (VIR_STRDUP(controller->mountPoint, entry.mnt_dir) < 0)
+                         goto error;
+ 
+                     tmp2 = strrchr(entry.mnt_dir, '/');
+@@ -453,7 +458,7 @@ virCgroupDetectMountsFromFile(virCgroupPtr group,
+                                 VIR_WARN("Expecting a symlink at %s for controller %s",
+                                          linksrc, typestr);
+                             } else {
+-                                group->controllers[i].linkPoint = linksrc;
+                                controller->linkPoint = linksrc;
+                             }
+                         }
+                     }
+diff --git a/tests/vircgroupdata/kubevirt.mounts b/tests/vircgroupdata/kubevirt.mounts
+new file mode 100644
+index 000000000..ca036196b
+--- /dev/null
+++ b/tests/vircgroupdata/kubevirt.mounts
+@@ -0,0 +1,25 @@
+rootfs / rootfs rw 0 0
+proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
+udev /dev devtmpfs rw,nosuid,relatime,size=10240k,nr_inodes=1006404,mode=755 0 0
+devpts /dev/pts devpts rw,relatime,gid=5,mode=620,ptmxmode=000 0 0
+sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
+/dev/sda1 / ext4 rw,noatime,data=ordered 0 0
+tmpfs /run tmpfs rw,nodev,relatime,size=812296k,mode=755 0 0
+mqueue /dev/mqueue mqueue rw,nosuid,nodev,noexec,relatime 0 0
+shm /dev/shm tmpfs rw,nosuid,nodev,noexec,relatime 0 0
+debugfs /sys/kernel/debug debugfs rw,nosuid,nodev,noexec,relatime 0 0
+cgroup_root /sys/fs/cgroup tmpfs rw,nosuid,nodev,noexec,relatime,size=10240k,mode=755 0 0
+openrc /sys/fs/cgroup/openrc cgroup rw,nosuid,nodev,noexec,relatime,release_agent=/lib64/rc/sh/cgroup-release-agent.sh,name=openrc 0 0
+cpuset /some/random/location/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0
+cpuset /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0
+cpu /sys/fs/cgroup/cpu cgroup rw,nosuid,nodev,noexec,relatime,cpu 0 0
+cpuacct /some/random/location/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuacct 0 0
+cpuacct /sys/fs/cgroup/cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct 0 0
+memory /sys/fs/cgroup/memory cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0
+devices /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0
+freezer /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0
+blkio /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0
+perf_event /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0
+hugetlb /sys/fs/cgroup/hugetlb cgroup rw,nosuid,nodev,noexec,relatime,hugetlb 0 0
+binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0 0
+freezer /some/random/location/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0
+diff --git a/tests/vircgroupdata/kubevirt.parsed b/tests/vircgroupdata/kubevirt.parsed
+new file mode 100644
+index 000000000..694870723
+--- /dev/null
+++ b/tests/vircgroupdata/kubevirt.parsed
+@@ -0,0 +1,10 @@
+cpu          /sys/fs/cgroup/cpu
+cpuacct      /sys/fs/cgroup/cpuacct
+cpuset       /sys/fs/cgroup/cpuset
+memory       /sys/fs/cgroup/memory
+devices      /sys/fs/cgroup/devices
+freezer      /some/random/location/freezer
+blkio        /sys/fs/cgroup/blkio
+net_cls      <null>
+perf_event   /sys/fs/cgroup/perf_event
+name=systemd <null>
+diff --git a/tests/vircgrouptest.c b/tests/vircgrouptest.c
+index f55ef74a1..cf0315f16 100644
+--- a/tests/vircgrouptest.c
+++ b/tests/vircgrouptest.c
+@@ -885,6 +885,7 @@ mymain(void)
+     DETECT_MOUNTS("cgroups3");
+     DETECT_MOUNTS("all-in-one");
+     DETECT_MOUNTS("no-cgroups");
+    DETECT_MOUNTS("kubevirt");
+ 
+     if (virTestRun("New cgroup for self", testCgroupNewForSelf, NULL) < 0)
+         ret = -1;
@@ -0,0 +1,53 @@
+From: Jim Fehlig <jfehlig@suse.com>
+Date: Tue, 18 Jul 2017 10:20:35 -0600
+Subject: [PATCH] docs: schema: make disk driver name attribute optional
+
+/domain/devices/disk/driver/@name is not a required or mandatory
+attribute according to formatdomain, and indeed it was agreed on
+IRC that the attribute is "optional for input, recommended (but
+not required) for output". Currently the schema requires the
+attribute, causing virt-xml-validate to fail on disk config where
+the driver name is not explicitly specified. E.g.
+
+# cat test.xml | grep -A 5 cdrom
+    <disk type='file' device='cdrom'>
+      <driver type='raw'/>
+      <target dev='hdb' bus='ide'/>
+      <readonly/>
+      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
+    </disk>
+
+# virt-xml-validate test.xml
+Relax-NG validity error : Extra element devices in interleave
+test.xml:21: element devices: Relax-NG validity error : Element domain failed to validate content
+test.xml fails to validate
+
+Relaxing the name attribute to be optional fixes the validation
+
+# virt-xml-validate test.xml
+test.xml validates
+
+(cherry picked from commit b494e09d058f09b48d0fd8855edd557101294671)
+---
+ docs/schemas/domaincommon.rng | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
+index edc225fe5..dfc7e2470 100644
+--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
+@@ -1720,9 +1720,11 @@
+     </element>
+   </define>
+   <define name="driverFormat">
+-    <attribute name="name">
+-      <ref name="genericName"/>
+-    </attribute>
+    <optional>
+      <attribute name="name">
+        <ref name="genericName"/>
+      </attribute>
+    </optional>
+     <optional>
+       <attribute name='type'>
+         <choice>
@@ -0,0 +1,34 @@
+From: Stefan Berger <stefanb@linux.vnet.ibm.com>
+Date: Thu, 29 Jun 2017 14:01:11 -0400
+Subject: [PATCH] tpm: Use /dev/null for cancel path if none was found
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+TPM 2 does not implement sysfs files for cancellation of commands.
+We therefore use /dev/null for the cancel path passed to QEMU.
+
+Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
+Tested-by: Javier Martinez Canillas <javierm@redhat.com>
+Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
+Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
+(cherry picked from commit dfbb15b75433e520fb1b905c1c3e28753e53e4a5)
+---
+ src/util/virtpm.c | 4 +---
+ 1 file changed, 1 insertion(+), 3 deletions(-)
+
+diff --git a/src/util/virtpm.c b/src/util/virtpm.c
+index 6d9b0657a..d5c10da38 100644
+--- a/src/util/virtpm.c
+++ b/src/util/virtpm.c
+@@ -61,9 +61,7 @@ virTPMCreateCancelPath(const char *devpath)
+                 VIR_FREE(path);
+             }
+             if (!path)
+-                virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+-                               _("No usable sysfs TPM cancel file could be "
+-                                 "found"));
+                ignore_value(VIR_STRDUP(path, "/dev/null"));
+         } else {
+             virReportError(VIR_ERR_INTERNAL_ERROR,
+                            _("TPM device path %s is invalid"), devpath);
@@ -0,0 +1,108 @@
+From: Cole Robinson <crobinso@redhat.com>
+Date: Sun, 27 Aug 2017 11:23:47 -0400
+Subject: [PATCH] security: add MANAGER_MOUNT_NAMESPACE flag
+
+The VIR_SECURITY_MANAGER_MOUNT_NAMESPACE flag informs the DAC driver
+if mount namespaces are in use for the VM. Will be used for future
+changes.
+
+Wire it up in the qemu driver
+
+(cherry picked from commit 321031e482425dfeae0f125cdac6df870f079efd)
+---
+ src/qemu/qemu_driver.c          |  2 ++
+ src/security/security_dac.c     | 10 ++++++++++
+ src/security/security_dac.h     |  3 +++
+ src/security/security_manager.c |  4 +++-
+ src/security/security_manager.h |  1 +
+ 5 files changed, 19 insertions(+), 1 deletion(-)
+
+diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
+index ce844bb04..555a1009b 100644
+--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
+@@ -417,6 +417,8 @@ qemuSecurityInit(virQEMUDriverPtr driver)
+     if (virQEMUDriverIsPrivileged(driver)) {
+         if (cfg->dynamicOwnership)
+             flags |= VIR_SECURITY_MANAGER_DYNAMIC_OWNERSHIP;
+        if (virBitmapIsBitSet(cfg->namespaces, QEMU_DOMAIN_NS_MOUNT))
+            flags |= VIR_SECURITY_MANAGER_MOUNT_NAMESPACE;
+         if (!(mgr = qemuSecurityNewDAC(QEMU_DRIVER_NAME,
+                                        cfg->user,
+                                        cfg->group,
+diff --git a/src/security/security_dac.c b/src/security/security_dac.c
+index 922e48494..1f8d279bf 100644
+--- a/src/security/security_dac.c
+++ b/src/security/security_dac.c
+@@ -57,6 +57,7 @@ struct _virSecurityDACData {
+     gid_t *groups;
+     int ngroups;
+     bool dynamicOwnership;
+    bool mountNamespace;
+     char *baselabel;
+     virSecurityManagerDACChownCallback chownCallback;
+ };
+@@ -237,6 +238,15 @@ virSecurityDACSetDynamicOwnership(virSecurityManagerPtr mgr,
+     priv->dynamicOwnership = dynamicOwnership;
+ }
+ 
+void
+virSecurityDACSetMountNamespace(virSecurityManagerPtr mgr,
+                                bool mountNamespace)
+{
+    virSecurityDACDataPtr priv = virSecurityManagerGetPrivateData(mgr);
+    priv->mountNamespace = mountNamespace;
+}
+
+
+ void
+ virSecurityDACSetChownCallback(virSecurityManagerPtr mgr,
+                                virSecurityManagerDACChownCallback chownCallback)
+diff --git a/src/security/security_dac.h b/src/security/security_dac.h
+index 846cefbb5..97681c961 100644
+--- a/src/security/security_dac.h
+++ b/src/security/security_dac.h
+@@ -32,6 +32,9 @@ int virSecurityDACSetUserAndGroup(virSecurityManagerPtr mgr,
+ void virSecurityDACSetDynamicOwnership(virSecurityManagerPtr mgr,
+                                        bool dynamic);
+ 
+void virSecurityDACSetMountNamespace(virSecurityManagerPtr mgr,
+                                     bool mountNamespace);
+
+ void virSecurityDACSetChownCallback(virSecurityManagerPtr mgr,
+                                     virSecurityManagerDACChownCallback chownCallback);
+ 
+diff --git a/src/security/security_manager.c b/src/security/security_manager.c
+index 6c777db1e..b2d04d4b9 100644
+--- a/src/security/security_manager.c
+++ b/src/security/security_manager.c
+@@ -146,7 +146,8 @@ virSecurityManagerNewDAC(const char *virtDriver,
+     virSecurityManagerPtr mgr;
+ 
+     virCheckFlags(VIR_SECURITY_MANAGER_NEW_MASK |
+-                  VIR_SECURITY_MANAGER_DYNAMIC_OWNERSHIP, NULL);
+                  VIR_SECURITY_MANAGER_DYNAMIC_OWNERSHIP |
+                  VIR_SECURITY_MANAGER_MOUNT_NAMESPACE, NULL);
+ 
+     mgr = virSecurityManagerNewDriver(&virSecurityDriverDAC,
+                                       virtDriver,
+@@ -161,6 +162,7 @@ virSecurityManagerNewDAC(const char *virtDriver,
+     }
+ 
+     virSecurityDACSetDynamicOwnership(mgr, flags & VIR_SECURITY_MANAGER_DYNAMIC_OWNERSHIP);
+    virSecurityDACSetMountNamespace(mgr, flags & VIR_SECURITY_MANAGER_MOUNT_NAMESPACE);
+     virSecurityDACSetChownCallback(mgr, chownCallback);
+ 
+     return mgr;
+diff --git a/src/security/security_manager.h b/src/security/security_manager.h
+index 238e66cd0..96937a892 100644
+--- a/src/security/security_manager.h
+++ b/src/security/security_manager.h
+@@ -36,6 +36,7 @@ typedef enum {
+     VIR_SECURITY_MANAGER_REQUIRE_CONFINED   = 1 << 2,
+     VIR_SECURITY_MANAGER_PRIVILEGED         = 1 << 3,
+     VIR_SECURITY_MANAGER_DYNAMIC_OWNERSHIP  = 1 << 4,
+    VIR_SECURITY_MANAGER_MOUNT_NAMESPACE    = 1 << 5,
+ } virSecurityManagerNewFlags;
+ 
+ # define VIR_SECURITY_MANAGER_NEW_MASK  \
@@ -0,0 +1,101 @@
+From: Cole Robinson <crobinso@redhat.com>
+Date: Mon, 17 Jul 2017 08:57:57 -0400
+Subject: [PATCH] security: dac: relabel spice rendernode
+
+For a logged in user this a path like /dev/dri/renderD128 will have
+default ownership root:video which won't work for the qemu:qemu user,
+so we need to chown it.
+
+We only do this when mount namespaces are enabled in the qemu driver,
+so the chown'ing doesn't interfere with other users of the shared
+render node path
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1460804
+(cherry picked from commit 98931187eefdec6f2dea5cb82ab6d23a3ffa6634)
+---
+ src/security/security_dac.c | 58 +++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 58 insertions(+)
+
+diff --git a/src/security/security_dac.c b/src/security/security_dac.c
+index 1f8d279bf..5f13bcee8 100644
+--- a/src/security/security_dac.c
+++ b/src/security/security_dac.c
+@@ -1379,6 +1379,54 @@ virSecurityDACRestoreTPMFileLabel(virSecurityManagerPtr mgr,
+ }
+ 
+ 
+static int
+virSecurityDACSetGraphicsLabel(virSecurityManagerPtr mgr,
+                               virDomainDefPtr def,
+                               virDomainGraphicsDefPtr gfx)
+
+{
+    virSecurityDACDataPtr priv = virSecurityManagerGetPrivateData(mgr);
+    virSecurityLabelDefPtr seclabel;
+    uid_t user;
+    gid_t group;
+
+    /* Skip chowning the shared render file if namespaces are disabled */
+    if (!priv->mountNamespace)
+        return 0;
+
+    seclabel = virDomainDefGetSecurityLabelDef(def, SECURITY_DAC_NAME);
+    if (seclabel && !seclabel->relabel)
+        return 0;
+
+    if (virSecurityDACGetIds(seclabel, priv, &user, &group, NULL, NULL) < 0)
+        return -1;
+
+    if (gfx->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE &&
+        gfx->data.spice.gl == VIR_TRISTATE_BOOL_YES &&
+        gfx->data.spice.rendernode) {
+        if (virSecurityDACSetOwnership(priv, NULL,
+                                       gfx->data.spice.rendernode,
+                                       user, group) < 0)
+            return -1;
+    }
+
+    return 0;
+}
+
+
+static int
+virSecurityDACRestoreGraphicsLabel(virSecurityManagerPtr mgr ATTRIBUTE_UNUSED,
+                               virDomainDefPtr def ATTRIBUTE_UNUSED,
+                               virDomainGraphicsDefPtr gfx ATTRIBUTE_UNUSED)
+
+{
+    /* The only graphics labelling we do is dependent on mountNamespaces,
+       in which case 'restoring' the label doesn't actually accomplish
+       anything, so there's nothing to do here */
+    return 0;
+}
+
+
+ static int
+ virSecurityDACSetInputLabel(virSecurityManagerPtr mgr,
+                             virDomainDefPtr def,
+@@ -1489,6 +1537,11 @@ virSecurityDACRestoreAllLabel(virSecurityManagerPtr mgr,
+             rc = -1;
+     }
+ 
+    for (i = 0; i < def->ngraphics; i++) {
+        if (virSecurityDACRestoreGraphicsLabel(mgr, def, def->graphics[i]) < 0)
+            return -1;
+    }
+
+     for (i = 0; i < def->ninputs; i++) {
+         if (virSecurityDACRestoreInputLabel(mgr, def, def->inputs[i]) < 0)
+             rc = -1;
+@@ -1602,6 +1655,11 @@ virSecurityDACSetAllLabel(virSecurityManagerPtr mgr,
+             return -1;
+     }
+ 
+    for (i = 0; i < def->ngraphics; i++) {
+        if (virSecurityDACSetGraphicsLabel(mgr, def, def->graphics[i]) < 0)
+            return -1;
+    }
+
+     for (i = 0; i < def->ninputs; i++) {
+         if (virSecurityDACSetInputLabel(mgr, def, def->inputs[i]) < 0)
+             return -1;
@@ -0,0 +1,63 @@
+From: Michal Privoznik <mprivozn@redhat.com>
+Date: Mon, 31 Jul 2017 16:55:58 +0200
+Subject: [PATCH] qemu: Honour <on_reboot/>
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1476866
+
+For some reason, we completely ignore <on_reboot/> setting for
+domains. The implementation is simply not there. It never was.
+
+Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
+(cherry picked from commit 3ee9bdbe351c0b80d4c469571ef31df3f1b148ea)
+---
+ src/qemu/qemu_process.c | 27 ++++++++++++++++++++++++---
+ 1 file changed, 24 insertions(+), 3 deletions(-)
+
+diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
+index 992a7174b..7588212ba 100644
+--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
+@@ -487,6 +487,7 @@ qemuProcessHandleReset(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
+     virObjectEventPtr event;
+     qemuDomainObjPrivatePtr priv;
+     virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+    int ret = -1;
+ 
+     virObjectLock(vm);
+ 
+@@ -498,12 +499,32 @@ qemuProcessHandleReset(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
+     if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, driver->caps) < 0)
+         VIR_WARN("Failed to save status on vm %s", vm->def->name);
+ 
+-    virObjectUnlock(vm);
+    if (vm->def->onReboot == VIR_DOMAIN_LIFECYCLE_DESTROY ||
+        vm->def->onReboot == VIR_DOMAIN_LIFECYCLE_PRESERVE) {
+ 
+-    qemuDomainEventQueue(driver, event);
+        if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
+            goto cleanup;
+
+        if (!virDomainObjIsActive(vm)) {
+            VIR_DEBUG("Ignoring RESET event from inactive domain %s",
+                      vm->def->name);
+            goto endjob;
+        }
+
+        qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_DESTROYED,
+                        QEMU_ASYNC_JOB_NONE, 0);
+        virDomainAuditStop(vm, "destroyed");
+        qemuDomainRemoveInactive(driver, vm);
+     endjob:
+        qemuDomainObjEndJob(driver, vm);
+    }
+ 
+    ret = 0;
+ cleanup:
+    virObjectUnlock(vm);
+    qemuDomainEventQueue(driver, event);
+     virObjectUnref(cfg);
+-    return 0;
+    return ret;
+ }
+ 
+ 
@@ -0,0 +1,113 @@
+From: Michal Privoznik <mprivozn@redhat.com>
+Date: Thu, 27 Apr 2017 16:29:21 +0200
+Subject: [PATCH] qemuDomainBuildNamespace: Move /dev/* mountpoints later
+
+When setting up mount namespace for a qemu domain the following
+steps are executed:
+
+1) get list of mountpoints under /dev/
+2) move them to /var/run/libvirt/qemu/$domName.ext
+3) start constructing new device tree under /var/run/libvirt/qemu/$domName.dev
+4) move the mountpoint of the new device tree to /dev
+5) restore original mountpoints from step 2)
+
+Note the problem with this approach is that if some device in step
+3) requires access to a mountpoint from step 2) it will fail as
+the mountpoint is not there anymore. For instance consider the
+following domain disk configuration:
+
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='raw'/>
+      <source file='/dev/shm/vhostmd0'/>
+      <target dev='vdb' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
+    </disk>
+
+In this case operation fails as we are unable to create vhostmd0
+in the new device tree because after step 2) there is no /dev/shm
+anymore. Leave aside fact that we shouldn't try to create devices
+living in other mountpoints. That's a separate bug that will be
+addressed later.
+
+Currently, the order described above is rearranged to:
+
+1) get list of mountpoints under /dev/
+2) start constructing new device tree under /var/run/libvirt/qemu/$domName.dev
+3) move them to /var/run/libvirt/qemu/$domName.ext
+4) move the mountpoint of the new device tree to /dev
+5) restore original mountpoints from step 3)
+
+Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
+Reviewed-by: Cedric Bosdonnat <cbosdonnat@suse.com>
+(cherry picked from commit a7cc039dc796f541793955598377807af48341fb)
+(cherry picked from commit 469bf7cb7a44a0798c63e4b5e4682d8e38bce66e)
+---
+ src/qemu/qemu_domain.c | 48 ++++++++++++++++++++++++------------------------
+ 1 file changed, 24 insertions(+), 24 deletions(-)
+
+diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
+index 4a127cedf..64f18f493 100644
+--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
+@@ -7854,6 +7854,30 @@ qemuDomainBuildNamespace(virQEMUDriverConfigPtr cfg,
+     if (qemuDomainSetupDev(cfg, mgr, vm, devPath) < 0)
+         goto cleanup;
+ 
+    if (qemuDomainSetupAllDisks(cfg, vm, devPath) < 0)
+        goto cleanup;
+
+    if (qemuDomainSetupAllHostdevs(cfg, vm, devPath) < 0)
+        goto cleanup;
+
+    if (qemuDomainSetupAllMemories(cfg, vm, devPath) < 0)
+        goto cleanup;
+
+    if (qemuDomainSetupAllChardevs(cfg, vm, devPath) < 0)
+        goto cleanup;
+
+    if (qemuDomainSetupTPM(cfg, vm, devPath) < 0)
+        goto cleanup;
+
+    if (qemuDomainSetupAllGraphics(cfg, vm, devPath) < 0)
+        goto cleanup;
+
+    if (qemuDomainSetupAllInputs(cfg, vm, devPath) < 0)
+        goto cleanup;
+
+    if (qemuDomainSetupAllRNGs(cfg, vm, devPath) < 0)
+        goto cleanup;
+
+     /* Save some mount points because we want to share them with the host */
+     for (i = 0; i < ndevMountsPath; i++) {
+         struct stat sb;
+@@ -7881,30 +7905,6 @@ qemuDomainBuildNamespace(virQEMUDriverConfigPtr cfg,
+             goto cleanup;
+     }
+ 
+-    if (qemuDomainSetupAllDisks(cfg, vm, devPath) < 0)
+-        goto cleanup;
+-
+-    if (qemuDomainSetupAllHostdevs(cfg, vm, devPath) < 0)
+-        goto cleanup;
+-
+-    if (qemuDomainSetupAllMemories(cfg, vm, devPath) < 0)
+-        goto cleanup;
+-
+-    if (qemuDomainSetupAllChardevs(cfg, vm, devPath) < 0)
+-        goto cleanup;
+-
+-    if (qemuDomainSetupTPM(cfg, vm, devPath) < 0)
+-        goto cleanup;
+-
+-    if (qemuDomainSetupAllGraphics(cfg, vm, devPath) < 0)
+-        goto cleanup;
+-
+-    if (qemuDomainSetupAllInputs(cfg, vm, devPath) < 0)
+-        goto cleanup;
+-
+-    if (qemuDomainSetupAllRNGs(cfg, vm, devPath) < 0)
+-        goto cleanup;
+-
+     if (virFileMoveMount(devPath, "/dev") < 0)
+         goto cleanup;
+ 
@@ -0,0 +1,71 @@
+From: "Daniel P. Berrange" <berrange@redhat.com>
+Date: Thu, 5 Oct 2017 17:54:28 +0100
+Subject: [PATCH] qemu: ensure TLS clients always verify the server certificate
+
+The default_tls_x509_verify (and related) parameters in qemu.conf
+control whether the QEMU TLS servers request & verify certificates
+from clients. This works as a simple access control system for
+servers by requiring the CA to issue certs to permitted clients.
+This use of client certificates is disabled by default, since it
+requires extra work to issue client certificates.
+
+Unfortunately the code was using this configuration parameter when
+setting up both TLS clients and servers in QEMU. The result was that
+TLS clients for character devices and disk devices had verification
+turned off, meaning they would ignore errors while validating the
+server certificate.
+
+This allows for trivial MITM attacks between client and server,
+as any certificate returned by the attacker will be accepted by
+the client.
+
+This is assigned CVE-2017-1000256  / LSN-2017-0002
+
+Reviewed-by: Eric Blake <eblake@redhat.com>
+Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
+(cherry picked from commit 441d3eb6d1be940a67ce45a286602a967601b157)
+---
+ src/qemu/qemu_command.c                                                 | 2 +-
+ tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-chardev.args     | 2 +-
+ .../qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args                 | 2 +-
+ 3 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
+index 311edd13e..141831635 100644
+--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
+@@ -727,7 +727,7 @@ qemuBuildTLSx509BackendProps(const char *tlspath,
+     if (virJSONValueObjectCreate(propsret,
+                                  "s:dir", path,
+                                  "s:endpoint", (isListen ? "server": "client"),
+-                                 "b:verify-peer", verifypeer,
+                                 "b:verify-peer", (isListen ? verifypeer : true),
+                                  NULL) < 0)
+         goto cleanup;
+ 
+diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-chardev.args
+index b456cce30..003d11de7 100644
+--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-chardev.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-chardev.args
+@@ -26,7 +26,7 @@ server,nowait \
+ localport=1111 \
+ -device isa-serial,chardev=charserial0,id=serial0 \
+ -object tls-creds-x509,id=objcharserial1_tls0,dir=/etc/pki/libvirt-chardev,\
+-endpoint=client,verify-peer=no \
+endpoint=client,verify-peer=yes \
+ -chardev socket,id=charserial1,host=127.0.0.1,port=5555,\
+ tls-creds=objcharserial1_tls0 \
+ -device isa-serial,chardev=charserial1,id=serial1 \
+diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args
+index 7f9fedb6c..a020ff006 100644
+--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args
+@@ -31,7 +31,7 @@ localport=1111 \
+ data=9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1,\
+ keyid=masterKey0,iv=AAECAwQFBgcICQoLDA0ODw==,format=base64 \
+ -object tls-creds-x509,id=objcharserial1_tls0,dir=/etc/pki/libvirt-chardev,\
+-endpoint=client,verify-peer=no,passwordid=charserial1-secret0 \
+endpoint=client,verify-peer=yes,passwordid=charserial1-secret0 \
+ -chardev socket,id=charserial1,host=127.0.0.1,port=5555,\
+ tls-creds=objcharserial1_tls0 \
+ -device isa-serial,chardev=charserial1,id=serial1 \
@@ -1 +0,0 @@
-F-12
@@ -1,356 +0,0 @@
-From 953440bd12608a20007ee5da5ab69fbbe910bd28 Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Mon, 14 Jun 2010 15:53:59 +0100
-Subject: [PATCH 01/11] Extract the backing store format as well as name, if available
-
-When QEMU opens a backing store for a QCow2 file, it will
-normally auto-probe for the format of the backing store,
-rather than assuming it has the same format as the referencing
-file. There is a QCow2 extension that allows an explicit format
-for the backing store to be embedded in the referencing file.
-This closes the auto-probing security hole in QEMU.
-
-This backing store format can be useful for libvirt users
-of virStorageFileGetMetadata, so extract this data and report
-it.
-
-QEMU does not require disk image backing store files to be in
-the same format the file linkee. It will auto-probe the disk
-format for the backing store when opening it. If the backing
-store was intended to be a raw file this could be a security
-hole, because a guest may have written data into its disk that
-then makes the backing store look like a qcow2 file. If it can
-trick QEMU into thinking the raw file is a qcow2 file, it can
-access arbitrary files on the host by adding further backing
-store links.
-
-To address this, callers of virStorageFileGetMeta need to be
-told of the backing store format. If no format is declared,
-they can make a decision whether to allow format probing or
-not.
---
- src/util/storage_file.c |  206 +++++++++++++++++++++++++++++++++++++++++------
- src/util/storage_file.h |    2 +
- 2 files changed, 183 insertions(+), 25 deletions(-)
-
-diff --git a/src/util/storage_file.c b/src/util/storage_file.c
-index 0adea40..80f743e 100644
--- a/src/util/storage_file.c
-+++ b/src/util/storage_file.c
-@@ -78,12 +78,33 @@ struct FileTypeInfo {
-     int qcowCryptOffset;  /* Byte offset from start of file
-                            * where to find encryption mode,
-                            * -1 if encryption is not used */
-    int (*getBackingStore)(char **res, const unsigned char *buf, size_t buf_size);
-+    int (*getBackingStore)(char **res, int *format,
-+                           const unsigned char *buf, size_t buf_size);
- };
- 
-static int cowGetBackingStore(char **, const unsigned char *, size_t);
-static int qcowXGetBackingStore(char **, const unsigned char *, size_t);
-static int vmdk4GetBackingStore(char **, const unsigned char *, size_t);
-+static int cowGetBackingStore(char **, int *,
-+                              const unsigned char *, size_t);
-+static int qcow1GetBackingStore(char **, int *,
-+                                const unsigned char *, size_t);
-+static int qcow2GetBackingStore(char **, int *,
-+                                const unsigned char *, size_t);
-+static int vmdk4GetBackingStore(char **, int *,
-+                                const unsigned char *, size_t);
-+
-+#define QCOWX_HDR_VERSION (4)
-+#define QCOWX_HDR_BACKING_FILE_OFFSET (QCOWX_HDR_VERSION+4)
-+#define QCOWX_HDR_BACKING_FILE_SIZE (QCOWX_HDR_BACKING_FILE_OFFSET+8)
-+#define QCOWX_HDR_IMAGE_SIZE (QCOWX_HDR_BACKING_FILE_SIZE+4+4)
-+
-+#define QCOW1_HDR_CRYPT (QCOWX_HDR_IMAGE_SIZE+8+1+1)
-+#define QCOW2_HDR_CRYPT (QCOWX_HDR_IMAGE_SIZE+8)
-+
-+#define QCOW1_HDR_TOTAL_SIZE (QCOW1_HDR_CRYPT+4+8)
-+#define QCOW2_HDR_TOTAL_SIZE (QCOW2_HDR_CRYPT+4+4+8+8+4+4+8)
-+
-+#define QCOW2_HDR_EXTENSION_END 0
-+#define QCOW2_HDR_EXTENSION_BACKING_FORMAT 0xE2792ACA
-+
- 
- 
- static struct FileTypeInfo const fileTypeInfo[] = {
-@@ -119,11 +140,11 @@ static struct FileTypeInfo const fileTypeInfo[] = {
-     /* QCow */
-     { VIR_STORAGE_FILE_QCOW, "QFI", NULL,
-       LV_BIG_ENDIAN, 4, 1,
-      4+4+8+4+4, 8, 1, 4+4+8+4+4+8+1+1+2, qcowXGetBackingStore },
-+      QCOWX_HDR_IMAGE_SIZE, 8, 1, QCOW1_HDR_CRYPT, qcow1GetBackingStore },
-     /* QCow 2 */
-     { VIR_STORAGE_FILE_QCOW2, "QFI", NULL,
-       LV_BIG_ENDIAN, 4, 2,
-      4+4+8+4+4, 8, 1, 4+4+8+4+4+8, qcowXGetBackingStore },
-+      QCOWX_HDR_IMAGE_SIZE, 8, 1, QCOW2_HDR_CRYPT, qcow2GetBackingStore },
-     /* VMDK 3 */
-     /* XXX Untested
-     { VIR_STORAGE_FILE_VMDK, "COWD", NULL,
-@@ -142,11 +163,14 @@ static struct FileTypeInfo const fileTypeInfo[] = {
- 
- static int
- cowGetBackingStore(char **res,
-+                   int *format,
-                    const unsigned char *buf,
-                    size_t buf_size)
- {
- #define COW_FILENAME_MAXLEN 1024
-     *res = NULL;
-+    *format = VIR_STORAGE_FILE_AUTO;
-+
-     if (buf_size < 4+4+ COW_FILENAME_MAXLEN)
-         return BACKING_STORE_INVALID;
-     if (buf[4+4] == '\0') /* cow_header_v2.backing_file[0] */
-@@ -160,31 +184,98 @@ cowGetBackingStore(char **res,
-     return BACKING_STORE_OK;
- }
- 
-+
-+static int
-+qcow2GetBackingStoreFormat(int *format,
-+                           const unsigned char *buf,
-+                           size_t buf_size,
-+                           size_t extension_start,
-+                           size_t extension_end)
-+{
-+    size_t offset = extension_start;
-+
-+    /*
-+     * The extensions take format of
-+     *
-+     * int32: magic
-+     * int32: length
-+     * byte[length]: payload
-+     *
-+     * Unknown extensions can be ignored by skipping
-+     * over "length" bytes in the data stream.
-+     */
-+    while (offset < (buf_size-8) &&
-+           offset < (extension_end-8)) {
-+        unsigned int magic =
-+            (buf[offset] << 24) +
-+            (buf[offset+1] << 16) +
-+            (buf[offset+2] << 8) +
-+            (buf[offset+3]);
-+        unsigned int len =
-+            (buf[offset+4] << 24) +
-+            (buf[offset+5] << 16) +
-+            (buf[offset+6] << 8) +
-+            (buf[offset+7]);
-+
-+        offset += 8;
-+
-+        if ((offset + len) < offset)
-+            break;
-+
-+        if ((offset + len) > buf_size)
-+            break;
-+
-+        switch (magic) {
-+        case QCOW2_HDR_EXTENSION_END:
-+            goto done;
-+
-+        case QCOW2_HDR_EXTENSION_BACKING_FORMAT:
-+            if (buf[offset+len] != '\0')
-+                break;
-+            *format = virStorageFileFormatTypeFromString(
-+                ((const char *)buf)+offset);
-+            break;
-+        }
-+
-+        offset += len;
-+    }
-+
-+done:
-+
-+    return 0;
-+}
-+
-+
- static int
- qcowXGetBackingStore(char **res,
-+                     int *format,
-                      const unsigned char *buf,
-                     size_t buf_size)
-+                     size_t buf_size,
-+                     bool isQCow2)
- {
-     unsigned long long offset;
-     unsigned long size;
- 
-     *res = NULL;
-    if (buf_size < 4+4+8+4)
-+    if (format)
-+        *format = VIR_STORAGE_FILE_AUTO;
-+
-+    if (buf_size < QCOWX_HDR_BACKING_FILE_OFFSET+8+4)
-         return BACKING_STORE_INVALID;
-    offset = (((unsigned long long)buf[4+4] << 56)
-              | ((unsigned long long)buf[4+4+1] << 48)
-              | ((unsigned long long)buf[4+4+2] << 40)
-              | ((unsigned long long)buf[4+4+3] << 32)
-              | ((unsigned long long)buf[4+4+4] << 24)
-              | ((unsigned long long)buf[4+4+5] << 16)
-              | ((unsigned long long)buf[4+4+6] << 8)
-              | buf[4+4+7]); /* QCowHeader.backing_file_offset */
-+    offset = (((unsigned long long)buf[QCOWX_HDR_BACKING_FILE_OFFSET] << 56)
-+              | ((unsigned long long)buf[QCOWX_HDR_BACKING_FILE_OFFSET+1] << 48)
-+              | ((unsigned long long)buf[QCOWX_HDR_BACKING_FILE_OFFSET+2] << 40)
-+              | ((unsigned long long)buf[QCOWX_HDR_BACKING_FILE_OFFSET+3] << 32)
-+              | ((unsigned long long)buf[QCOWX_HDR_BACKING_FILE_OFFSET+4] << 24)
-+              | ((unsigned long long)buf[QCOWX_HDR_BACKING_FILE_OFFSET+5] << 16)
-+              | ((unsigned long long)buf[QCOWX_HDR_BACKING_FILE_OFFSET+6] << 8)
-+              | buf[QCOWX_HDR_BACKING_FILE_OFFSET+7]); /* QCowHeader.backing_file_offset */
-     if (offset > buf_size)
-         return BACKING_STORE_INVALID;
-    size = ((buf[4+4+8] << 24)
-            | (buf[4+4+8+1] << 16)
-            | (buf[4+4+8+2] << 8)
-            | buf[4+4+8+3]); /* QCowHeader.backing_file_size */
-+    size = ((buf[QCOWX_HDR_BACKING_FILE_SIZE] << 24)
-+            | (buf[QCOWX_HDR_BACKING_FILE_SIZE+1] << 16)
-+            | (buf[QCOWX_HDR_BACKING_FILE_SIZE+2] << 8)
-+            | buf[QCOWX_HDR_BACKING_FILE_SIZE+3]); /* QCowHeader.backing_file_size */
-     if (size == 0)
-         return BACKING_STORE_OK;
-     if (offset + size > buf_size || offset + size < offset)
-@@ -197,12 +288,63 @@ qcowXGetBackingStore(char **res,
-     }
-     memcpy(*res, buf + offset, size);
-     (*res)[size] = '\0';
-+
-+    /*
-+     * Traditionally QCow2 files had a layout of
-+     *
-+     * [header]
-+     * [backingStoreName]
-+     *
-+     * Although the backingStoreName typically followed
-+     * the header immediately, this was not required by
-+     * the format. By specifying a higher byte offset for
-+     * the backing file offset in the header, it was
-+     * possible to leave space between the header and
-+     * start of backingStore.
-+     *
-+     * This hack is now used to store extensions to the
-+     * qcow2 format:
-+     *
-+     * [header]
-+     * [extensions]
-+     * [backingStoreName]
-+     *
-+     * Thus the file region to search for extensions is
-+     * between the end of the header (QCOW2_HDR_TOTAL_SIZE)
-+     * and the start of the backingStoreName (offset)
-+     */
-+    if (isQCow2)
-+        qcow2GetBackingStoreFormat(format, buf, buf_size, QCOW2_HDR_TOTAL_SIZE, offset);
-+
-     return BACKING_STORE_OK;
- }
- 
- 
- static int
-+qcow1GetBackingStore(char **res,
-+                     int *format,
-+                     const unsigned char *buf,
-+                     size_t buf_size)
-+{
-+    /* QCow1 doesn't have the extensions capability
-+     * used to store backing format */
-+    *format = VIR_STORAGE_FILE_AUTO;
-+    return qcowXGetBackingStore(res, NULL, buf, buf_size, false);
-+}
-+
-+static int
-+qcow2GetBackingStore(char **res,
-+                     int *format,
-+                     const unsigned char *buf,
-+                     size_t buf_size)
-+{
-+    return qcowXGetBackingStore(res, format, buf, buf_size, true);
-+}
-+
-+
-+static int
- vmdk4GetBackingStore(char **res,
-+                     int *format,
-                      const unsigned char *buf,
-                      size_t buf_size)
- {
-@@ -212,6 +354,14 @@ vmdk4GetBackingStore(char **res,
-     size_t len;
- 
-     *res = NULL;
-+    /*
-+     * Technically this should have been VMDK, since
-+     * VMDK spec / VMWare impl only support VMDK backed
-+     * by VMDK. QEMU isn't following this though and
-+     * does probing on VMDK backing files, hence we set
-+     * AUTO
-+     */
-+    *format = VIR_STORAGE_FILE_AUTO;
- 
-     if (buf_size <= 0x200)
-         return BACKING_STORE_INVALID;
-@@ -358,9 +508,12 @@ virStorageFileGetMetadataFromFD(const char *path,
-         /* Validation passed, we know the file format now */
-         meta->format = fileTypeInfo[i].type;
-         if (fileTypeInfo[i].getBackingStore != NULL) {
-            char *base;
-+            char *backing;
-+            int backingFormat;
- 
-            switch (fileTypeInfo[i].getBackingStore(&base, head, len)) {
-+            switch (fileTypeInfo[i].getBackingStore(&backing,
-+                                                    &backingFormat,
-+                                                    head, len)) {
-             case BACKING_STORE_OK:
-                 break;
- 
-@@ -370,13 +523,16 @@ virStorageFileGetMetadataFromFD(const char *path,
-             case BACKING_STORE_ERROR:
-                 return -1;
-             }
-            if (base != NULL) {
-                meta->backingStore = absolutePathFromBaseFile(path, base);
-                VIR_FREE(base);
-+            if (backing != NULL) {
-+                meta->backingStore = absolutePathFromBaseFile(path, backing);
-+                VIR_FREE(backing);
-                 if (meta->backingStore == NULL) {
-                     virReportOOMError();
-                     return -1;
-                 }
-+                meta->backingStoreFormat = backingFormat;
-+            } else {
-+                meta->backingStoreFormat = VIR_STORAGE_FILE_AUTO;
-             }
-         }
-         return 0;
-diff --git a/src/util/storage_file.h b/src/util/storage_file.h
-index 58533ee..6328ba7 100644
--- a/src/util/storage_file.h
-+++ b/src/util/storage_file.h
-@@ -28,6 +28,7 @@
- # include <stdbool.h>
- 
- enum virStorageFileFormat {
-+    VIR_STORAGE_FILE_AUTO = -1,
-     VIR_STORAGE_FILE_RAW = 0,
-     VIR_STORAGE_FILE_DIR,
-     VIR_STORAGE_FILE_BOCHS,
-@@ -47,6 +48,7 @@ VIR_ENUM_DECL(virStorageFileFormat);
- typedef struct _virStorageFileMetadata {
-     int format;
-     char *backingStore;
-+    int backingStoreFormat;
-     unsigned long long capacity;
-     bool encrypted;
- } virStorageFileMetadata;
-- 
-1.7.1.1
-
@@ -1,159 +0,0 @@
-From cab428b1d4d432965cee6f5afb67265557706715 Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Mon, 14 Jun 2010 16:39:32 +0100
-Subject: [PATCH 02/11] Remove 'type' field from FileTypeInfo struct
-
-Instead of including a field in FileTypeInfo struct for the
-disk format, rely on the array index matching the format.
-Use verify() to assert the correct number of elements in the
-array.
-
-* src/util/storage_file.c: remove type field from FileTypeInfo
---
- src/util/storage_file.c |  108 +++++++++++++++++++++++-----------------------
- 1 files changed, 54 insertions(+), 54 deletions(-)
-
-diff --git a/src/util/storage_file.c b/src/util/storage_file.c
-index 80f743e..df0e3a1 100644
--- a/src/util/storage_file.c
-+++ b/src/util/storage_file.c
-@@ -58,7 +58,6 @@ enum {
- 
- /* Either 'magic' or 'extension' *must* be provided */
- struct FileTypeInfo {
-    int type;           /* One of the constants above */
-     const char *magic;  /* Optional string of file magic
-                          * to check at head of file */
-     const char *extension; /* Optional file extension to check */
-@@ -108,58 +107,59 @@ static int vmdk4GetBackingStore(char **, int *,
- 
- 
- static struct FileTypeInfo const fileTypeInfo[] = {
-    /* Bochs */
-    /* XXX Untested
-    { VIR_STORAGE_FILE_BOCHS, "Bochs Virtual HD Image", NULL,
-      LV_LITTLE_ENDIAN, 64, 0x20000,
-      32+16+16+4+4+4+4+4, 8, 1, -1, NULL },*/
-    /* CLoop */
-    /* XXX Untested
-    { VIR_STORAGE_VOL_CLOOP, "#!/bin/sh\n#V2.0 Format\nmodprobe cloop file=$0 && mount -r -t iso9660 /dev/cloop $1\n", NULL,
-      LV_LITTLE_ENDIAN, -1, 0,
-      -1, 0, 0, -1, NULL }, */
-    /* Cow */
-    { VIR_STORAGE_FILE_COW, "OOOM", NULL,
-      LV_BIG_ENDIAN, 4, 2,
-      4+4+1024+4, 8, 1, -1, cowGetBackingStore },
-    /* DMG */
-    /* XXX QEMU says there's no magic for dmg, but we should check... */
-    { VIR_STORAGE_FILE_DMG, NULL, ".dmg",
-      0, -1, 0,
-      -1, 0, 0, -1, NULL },
-    /* XXX there's probably some magic for iso we can validate too... */
-    { VIR_STORAGE_FILE_ISO, NULL, ".iso",
-      0, -1, 0,
-      -1, 0, 0, -1, NULL },
-    /* Parallels */
-    /* XXX Untested
-    { VIR_STORAGE_FILE_PARALLELS, "WithoutFreeSpace", NULL,
-      LV_LITTLE_ENDIAN, 16, 2,
-      16+4+4+4+4, 4, 512, -1, NULL },
-    */
-    /* QCow */
-    { VIR_STORAGE_FILE_QCOW, "QFI", NULL,
-      LV_BIG_ENDIAN, 4, 1,
-      QCOWX_HDR_IMAGE_SIZE, 8, 1, QCOW1_HDR_CRYPT, qcow1GetBackingStore },
-    /* QCow 2 */
-    { VIR_STORAGE_FILE_QCOW2, "QFI", NULL,
-      LV_BIG_ENDIAN, 4, 2,
-      QCOWX_HDR_IMAGE_SIZE, 8, 1, QCOW2_HDR_CRYPT, qcow2GetBackingStore },
-    /* VMDK 3 */
-    /* XXX Untested
-    { VIR_STORAGE_FILE_VMDK, "COWD", NULL,
-      LV_LITTLE_ENDIAN, 4, 1,
-      4+4+4, 4, 512, -1, NULL },
-    */
-    /* VMDK 4 */
-    { VIR_STORAGE_FILE_VMDK, "KDMV", NULL,
-      LV_LITTLE_ENDIAN, 4, 1,
-      4+4+4, 8, 512, -1, vmdk4GetBackingStore },
-    /* Connectix / VirtualPC */
-    { VIR_STORAGE_FILE_VPC, "conectix", NULL,
-      LV_BIG_ENDIAN, 12, 0x10000,
-      8 + 4 + 4 + 8 + 4 + 4 + 2 + 2 + 4, 8, 1, -1, NULL},
-+    [VIR_STORAGE_FILE_RAW] = { NULL, NULL, LV_LITTLE_ENDIAN, -1, 0, 0, 0, 0, 0, NULL },
-+    [VIR_STORAGE_FILE_DIR] = { NULL, NULL, LV_LITTLE_ENDIAN, -1, 0, 0, 0, 0, 0, NULL },
-+    [VIR_STORAGE_FILE_BOCHS] = {
-+        /*"Bochs Virtual HD Image", */ /* Untested */ NULL,
-+        NULL,
-+        LV_LITTLE_ENDIAN, 64, 0x20000,
-+        32+16+16+4+4+4+4+4, 8, 1, -1, NULL
-+    },
-+    [VIR_STORAGE_FILE_CLOOP] = {
-+        /*"#!/bin/sh\n#V2.0 Format\nmodprobe cloop file=$0 && mount -r -t iso9660 /dev/cloop $1\n", */ /* Untested */ NULL,
-+        NULL,
-+        LV_LITTLE_ENDIAN, -1, 0,
-+        -1, 0, 0, -1, NULL
-+    },
-+    [VIR_STORAGE_FILE_COW] = {
-+        "OOOM", NULL,
-+        LV_BIG_ENDIAN, 4, 2,
-+        4+4+1024+4, 8, 1, -1, cowGetBackingStore
-+    },
-+    [VIR_STORAGE_FILE_DMG] = {
-+        NULL, /* XXX QEMU says there's no magic for dmg, but we should check... */
-+        ".dmg",
-+        0, -1, 0,
-+        -1, 0, 0, -1, NULL
-+    },
-+    [VIR_STORAGE_FILE_ISO] = {
-+        NULL, /* XXX there's probably some magic for iso we can validate too... */
-+        ".iso",
-+        0, -1, 0,
-+        -1, 0, 0, -1, NULL
-+    },
-+    [VIR_STORAGE_FILE_QCOW] = {
-+        "QFI", NULL,
-+        LV_BIG_ENDIAN, 4, 1,
-+        QCOWX_HDR_IMAGE_SIZE, 8, 1, QCOW1_HDR_CRYPT, qcow1GetBackingStore,
-+    },
-+    [VIR_STORAGE_FILE_QCOW2] = {
-+        "QFI", NULL,
-+        LV_BIG_ENDIAN, 4, 2,
-+        QCOWX_HDR_IMAGE_SIZE, 8, 1, QCOW2_HDR_CRYPT, qcow2GetBackingStore,
-+    },
-+    [VIR_STORAGE_FILE_VMDK] = {
-+        "KDMV", NULL,
-+        LV_LITTLE_ENDIAN, 4, 1,
-+        4+4+4, 8, 512, -1, vmdk4GetBackingStore
-+    },
-+    [VIR_STORAGE_FILE_VPC] = {
-+        "conectix", NULL,
-+        LV_BIG_ENDIAN, 12, 0x10000,
-+        8 + 4 + 4 + 8 + 4 + 4 + 2 + 2 + 4, 8, 1, -1, NULL
-+    },
- };
-+verify(ARRAY_CARDINALITY(fileTypeInfo) == VIR_STORAGE_FILE_LAST);
- 
- static int
- cowGetBackingStore(char **res,
-@@ -506,7 +506,7 @@ virStorageFileGetMetadataFromFD(const char *path,
-         }
- 
-         /* Validation passed, we know the file format now */
-        meta->format = fileTypeInfo[i].type;
-+        meta->format = i;
-         if (fileTypeInfo[i].getBackingStore != NULL) {
-             char *backing;
-             int backingFormat;
-@@ -546,7 +546,7 @@ virStorageFileGetMetadataFromFD(const char *path,
-         if (!virFileHasSuffix(path, fileTypeInfo[i].extension))
-             continue;
- 
-        meta->format = fileTypeInfo[i].type;
-+        meta->format = i;
-         return 0;
-     }
- 
-- 
-1.7.1.1
-
@@ -1,585 +0,0 @@
-From 57482ca0be29e9e92e242c9acb577e0b770c01d1 Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Tue, 15 Jun 2010 14:58:10 +0100
-Subject: [PATCH 03/11] Refactor virStorageFileGetMetadataFromFD to separate functionality
-
-The virStorageFileGetMetadataFromFD did two jobs in one. First
-it probed for storage type, then it extracted metadata for the
-type. It is desirable to be able to separate these jobs, allowing
-probing without querying metadata, and querying metadata without
-probing.
-
-To prepare for this, split out probing code into a new pair of
-methods
-
-  virStorageFileProbeFormatFromFD
-  virStorageFileProbeFormat
-
-* src/util/storage_file.c, src/util/storage_file.h,
-  src/libvirt_private.syms: Introduce virStorageFileProbeFormat
-  and virStorageFileProbeFormatFromFD
---
- src/libvirt_private.syms |    2 +
- src/util/storage_file.c  |  460 +++++++++++++++++++++++++++++++++-------------
- src/util/storage_file.h  |    4 +
- 3 files changed, 335 insertions(+), 131 deletions(-)
-
-diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
-index 778ceb1..4607f49 100644
--- a/src/libvirt_private.syms
-+++ b/src/libvirt_private.syms
-@@ -628,6 +628,8 @@ virStorageGenerateQcowPassphrase;
- # storage_file.h
- virStorageFileFormatTypeToString;
- virStorageFileFormatTypeFromString;
-+virStorageFileProbeFormat;
-+virStorageFileProbeFormatFromFD;
- virStorageFileGetMetadata;
- virStorageFileGetMetadataFromFD;
- virStorageFileIsSharedFS;
-diff --git a/src/util/storage_file.c b/src/util/storage_file.c
-index df0e3a1..221268b 100644
--- a/src/util/storage_file.c
-+++ b/src/util/storage_file.c
-@@ -104,6 +104,9 @@ static int vmdk4GetBackingStore(char **, int *,
- #define QCOW2_HDR_EXTENSION_END 0
- #define QCOW2_HDR_EXTENSION_BACKING_FORMAT 0xE2792ACA
- 
-+/* VMDK needs at least this to find backing store,
-+ * other formats are less */
-+#define STORAGE_MAX_HEAD (20*512)
- 
- 
- static struct FileTypeInfo const fileTypeInfo[] = {
-@@ -349,9 +352,14 @@ vmdk4GetBackingStore(char **res,
-                      size_t buf_size)
- {
-     static const char prefix[] = "parentFileNameHint=\"";
-
-    char desc[20*512 + 1], *start, *end;
-+    char *desc, *start, *end;
-     size_t len;
-+    int ret = BACKING_STORE_ERROR;
-+
-+    if (VIR_ALLOC_N(desc, STORAGE_MAX_HEAD + 1) < 0) {
-+        virReportOOMError();
-+        goto cleanup;
-+    }
- 
-     *res = NULL;
-     /*
-@@ -363,29 +371,42 @@ vmdk4GetBackingStore(char **res,
-      */
-     *format = VIR_STORAGE_FILE_AUTO;
- 
-    if (buf_size <= 0x200)
-        return BACKING_STORE_INVALID;
-+    if (buf_size <= 0x200) {
-+        ret = BACKING_STORE_INVALID;
-+        goto cleanup;
-+    }
-     len = buf_size - 0x200;
-    if (len > sizeof(desc) - 1)
-        len = sizeof(desc) - 1;
-+    if (len > STORAGE_MAX_HEAD)
-+        len = STORAGE_MAX_HEAD;
-     memcpy(desc, buf + 0x200, len);
-     desc[len] = '\0';
-     start = strstr(desc, prefix);
-    if (start == NULL)
-        return BACKING_STORE_OK;
-+    if (start == NULL) {
-+        ret = BACKING_STORE_OK;
-+        goto cleanup;
-+    }
-     start += strlen(prefix);
-     end = strchr(start, '"');
-    if (end == NULL)
-        return BACKING_STORE_INVALID;
-    if (end == start)
-        return BACKING_STORE_OK;
-+    if (end == NULL) {
-+        ret = BACKING_STORE_INVALID;
-+        goto cleanup;
-+    }
-+    if (end == start) {
-+        ret = BACKING_STORE_OK;
-+        goto cleanup;
-+    }
-     *end = '\0';
-     *res = strdup(start);
-     if (*res == NULL) {
-         virReportOOMError();
-        return BACKING_STORE_ERROR;
-+        goto cleanup;
-     }
-    return BACKING_STORE_OK;
-+
-+    ret = BACKING_STORE_OK;
-+
-+cleanup:
-+    VIR_FREE(desc);
-+    return ret;
- }
- 
- /**
-@@ -411,148 +432,325 @@ absolutePathFromBaseFile(const char *base_file, const char *path)
-     return res;
- }
- 
-/**
- * Probe the header of a file to determine what type of disk image
- * it is, and info about its capacity if available.
- */
-int
-virStorageFileGetMetadataFromFD(const char *path,
-                                int fd,
-                                virStorageFileMetadata *meta)
-+
-+static bool
-+virStorageFileMatchesMagic(int format,
-+                           unsigned char *buf,
-+                           size_t buflen)
- {
-    unsigned char head[20*512]; /* vmdk4GetBackingStore needs this much. */
-    int len, i;
-+    int mlen;
- 
-    memset(meta, 0, sizeof (*meta));
-+    if (fileTypeInfo[format].magic == NULL)
-+        return false;
- 
-    /* If all else fails, call it a raw file */
-    meta->format = VIR_STORAGE_FILE_RAW;
-+    /* Validate magic data */
-+    mlen = strlen(fileTypeInfo[format].magic);
-+    if (mlen > buflen)
-+        return false;
- 
-    if ((len = read(fd, head, sizeof(head))) < 0) {
-        virReportSystemError(errno, _("cannot read header '%s'"), path);
-        return -1;
-+    if (memcmp(buf, fileTypeInfo[format].magic, mlen) != 0)
-+        return false;
-+
-+    return true;
-+}
-+
-+
-+static bool
-+virStorageFileMatchesExtension(int format,
-+                               const char *path)
-+{
-+    if (fileTypeInfo[format].extension == NULL)
-+        return false;
-+
-+    if (virFileHasSuffix(path, fileTypeInfo[format].extension))
-+        return true;
-+
-+    return false;
-+}
-+
-+
-+static bool
-+virStorageFileMatchesVersion(int format,
-+                             unsigned char *buf,
-+                             size_t buflen)
-+{
-+    int version;
-+
-+    /* Validate version number info */
-+    if (fileTypeInfo[format].versionOffset == -1)
-+        return false;
-+
-+    if ((fileTypeInfo[format].versionOffset + 4) > buflen)
-+        return false;
-+
-+    if (fileTypeInfo[format].endian == LV_LITTLE_ENDIAN) {
-+        version =
-+            (buf[fileTypeInfo[format].versionOffset+3] << 24) |
-+            (buf[fileTypeInfo[format].versionOffset+2] << 16) |
-+            (buf[fileTypeInfo[format].versionOffset+1] << 8) |
-+            (buf[fileTypeInfo[format].versionOffset]);
-+    } else {
-+        version =
-+            (buf[fileTypeInfo[format].versionOffset] << 24) |
-+            (buf[fileTypeInfo[format].versionOffset+1] << 16) |
-+            (buf[fileTypeInfo[format].versionOffset+2] << 8) |
-+            (buf[fileTypeInfo[format].versionOffset+3]);
-     }
-+    if (version != fileTypeInfo[format].versionNumber)
-+        return false;
- 
-    /* First check file magic */
-    for (i = 0 ; i < ARRAY_CARDINALITY(fileTypeInfo) ; i++) {
-        int mlen;
-
-        if (fileTypeInfo[i].magic == NULL)
-            continue;
-
-        /* Validate magic data */
-        mlen = strlen(fileTypeInfo[i].magic);
-        if (mlen > len)
-            continue;
-        if (memcmp(head, fileTypeInfo[i].magic, mlen) != 0)
-            continue;
-
-        /* Validate version number info */
-        if (fileTypeInfo[i].versionNumber != -1) {
-            int version;
-
-            if (fileTypeInfo[i].endian == LV_LITTLE_ENDIAN) {
-                version = (head[fileTypeInfo[i].versionOffset+3] << 24) |
-                    (head[fileTypeInfo[i].versionOffset+2] << 16) |
-                    (head[fileTypeInfo[i].versionOffset+1] << 8) |
-                    head[fileTypeInfo[i].versionOffset];
-            } else {
-                version = (head[fileTypeInfo[i].versionOffset] << 24) |
-                    (head[fileTypeInfo[i].versionOffset+1] << 16) |
-                    (head[fileTypeInfo[i].versionOffset+2] << 8) |
-                    head[fileTypeInfo[i].versionOffset+3];
-            }
-            if (version != fileTypeInfo[i].versionNumber)
-                continue;
-        }
-+    return true;
-+}
- 
-        /* Optionally extract capacity from file */
-        if (fileTypeInfo[i].sizeOffset != -1) {
-            if (fileTypeInfo[i].endian == LV_LITTLE_ENDIAN) {
-                meta->capacity =
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+7] << 56) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+6] << 48) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+5] << 40) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+4] << 32) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+3] << 24) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+2] << 16) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+1] << 8) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset]);
-            } else {
-                meta->capacity =
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset] << 56) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+1] << 48) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+2] << 40) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+3] << 32) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+4] << 24) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+5] << 16) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+6] << 8) |
-                    ((unsigned long long)head[fileTypeInfo[i].sizeOffset+7]);
-            }
-            /* Avoid unlikely, but theoretically possible overflow */
-            if (meta->capacity > (ULLONG_MAX / fileTypeInfo[i].sizeMultiplier))
-                continue;
-            meta->capacity *= fileTypeInfo[i].sizeMultiplier;
-        }
- 
-        if (fileTypeInfo[i].qcowCryptOffset != -1) {
-            int crypt_format;
-+static int
-+virStorageFileGetMetadataFromBuf(int format,
-+                                 const char *path,
-+                                 unsigned char *buf,
-+                                 size_t buflen,
-+                                 virStorageFileMetadata *meta)
-+{
-+    /* XXX we should consider moving virStorageBackendUpdateVolInfo
-+     * code into this method, for non-magic files
-+     */
-+    if (!fileTypeInfo[format].magic) {
-+        return 0;
-+    }
- 
-            crypt_format = (head[fileTypeInfo[i].qcowCryptOffset] << 24) |
-                (head[fileTypeInfo[i].qcowCryptOffset+1] << 16) |
-                (head[fileTypeInfo[i].qcowCryptOffset+2] << 8) |
-                head[fileTypeInfo[i].qcowCryptOffset+3];
-            meta->encrypted = crypt_format != 0;
-+    /* Optionally extract capacity from file */
-+    if (fileTypeInfo[format].sizeOffset != -1) {
-+        if ((fileTypeInfo[format].sizeOffset + 8) > buflen)
-+            return 1;
-+
-+        if (fileTypeInfo[format].endian == LV_LITTLE_ENDIAN) {
-+            meta->capacity =
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+7] << 56) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+6] << 48) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+5] << 40) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+4] << 32) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+3] << 24) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+2] << 16) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+1] << 8) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset]);
-+        } else {
-+            meta->capacity =
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset] << 56) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+1] << 48) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+2] << 40) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+3] << 32) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+4] << 24) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+5] << 16) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+6] << 8) |
-+                ((unsigned long long)buf[fileTypeInfo[format].sizeOffset+7]);
-         }
-+        /* Avoid unlikely, but theoretically possible overflow */
-+        if (meta->capacity > (ULLONG_MAX / fileTypeInfo[format].sizeMultiplier))
-+            return 1;
-+        meta->capacity *= fileTypeInfo[format].sizeMultiplier;
-+    }
- 
-        /* Validation passed, we know the file format now */
-        meta->format = i;
-        if (fileTypeInfo[i].getBackingStore != NULL) {
-            char *backing;
-            int backingFormat;
-+    if (fileTypeInfo[format].qcowCryptOffset != -1) {
-+        int crypt_format;
- 
-            switch (fileTypeInfo[i].getBackingStore(&backing,
-                                                    &backingFormat,
-                                                    head, len)) {
-            case BACKING_STORE_OK:
-                break;
-+        crypt_format =
-+            (buf[fileTypeInfo[format].qcowCryptOffset] << 24) |
-+            (buf[fileTypeInfo[format].qcowCryptOffset+1] << 16) |
-+            (buf[fileTypeInfo[format].qcowCryptOffset+2] << 8) |
-+            (buf[fileTypeInfo[format].qcowCryptOffset+3]);
-+        meta->encrypted = crypt_format != 0;
-+    }
- 
-            case BACKING_STORE_INVALID:
-                continue;
-+    if (fileTypeInfo[format].getBackingStore != NULL) {
-+        char *backing;
-+        int backingFormat;
-+        int ret = fileTypeInfo[format].getBackingStore(&backing,
-+                                                       &backingFormat,
-+                                                       buf, buflen);
-+        if (ret == BACKING_STORE_INVALID)
-+            return 1;
-+
-+        if (ret == BACKING_STORE_ERROR)
-+            return -1;
- 
-            case BACKING_STORE_ERROR:
-+        if (backing != NULL) {
-+            meta->backingStore = absolutePathFromBaseFile(path, backing);
-+            VIR_FREE(backing);
-+            if (meta->backingStore == NULL) {
-+                virReportOOMError();
-                 return -1;
-             }
-            if (backing != NULL) {
-                meta->backingStore = absolutePathFromBaseFile(path, backing);
-                VIR_FREE(backing);
-                if (meta->backingStore == NULL) {
-                    virReportOOMError();
-                    return -1;
-                }
-                meta->backingStoreFormat = backingFormat;
-            } else {
-                meta->backingStoreFormat = VIR_STORAGE_FILE_AUTO;
-            }
-+            meta->backingStoreFormat = backingFormat;
-+        } else {
-+            meta->backingStore = NULL;
-+            meta->backingStoreFormat = VIR_STORAGE_FILE_AUTO;
-+        }
-+    }
-+
-+    return 0;
-+}
-+
-+
-+static int
-+virStorageFileProbeFormatFromBuf(const char *path,
-+                                 unsigned char *buf,
-+                                 size_t buflen)
-+{
-+    int format = VIR_STORAGE_FILE_RAW;
-+    int i;
-+
-+    /* First check file magic */
-+    for (i = 0 ; i < VIR_STORAGE_FILE_LAST ; i++) {
-+        if (virStorageFileMatchesMagic(i, buf, buflen) &&
-+            virStorageFileMatchesVersion(i, buf, buflen)) {
-+            format = i;
-+            goto cleanup;
-         }
-        return 0;
-     }
- 
-     /* No magic, so check file extension */
-    for (i = 0 ; i < ARRAY_CARDINALITY(fileTypeInfo) ; i++) {
-        if (fileTypeInfo[i].extension == NULL)
-            continue;
-+    for (i = 0 ; i < VIR_STORAGE_FILE_LAST ; i++) {
-+        if (virStorageFileMatchesExtension(i, path)) {
-+            format = i;
-+            goto cleanup;
-+        }
-+    }
- 
-        if (!virFileHasSuffix(path, fileTypeInfo[i].extension))
-            continue;
-+cleanup:
-+    return format;
-+}
- 
-        meta->format = i;
-        return 0;
-+
-+/**
-+ * virStorageFileProbeFormatFromFD:
-+ *
-+ * Probe for the format of 'fd' (which is an open file descriptor
-+ * pointing to 'path'), returning the detected disk format.
-+ *
-+ * Callers are advised never to trust the returned 'format'
-+ * unless it is listed as VIR_STORAGE_FILE_RAW, since a
-+ * malicious guest can turn a file into any other non-raw
-+ * format at will.
-+ *
-+ * Best option: Don't use this function
-+ */
-+int
-+virStorageFileProbeFormatFromFD(const char *path, int fd)
-+{
-+    unsigned char *head;
-+    ssize_t len = STORAGE_MAX_HEAD;
-+    int ret = -1;
-+
-+    if (VIR_ALLOC_N(head, len) < 0) {
-+        virReportOOMError();
-+        return -1;
-     }
- 
-    return 0;
-+    if (lseek(fd, 0, SEEK_SET) == (off_t)-1) {
-+        virReportSystemError(errno, _("cannot set to start of '%s'"), path);
-+        goto cleanup;
-+    }
-+
-+    if ((len = read(fd, head, len)) < 0) {
-+        virReportSystemError(errno, _("cannot read header '%s'"), path);
-+        goto cleanup;
-+    }
-+
-+    ret = virStorageFileProbeFormatFromBuf(path, head, len);
-+
-+cleanup:
-+    VIR_FREE(head);
-+    return ret;
-+}
-+
-+
-+/**
-+ * virStorageFileProbeFormat:
-+ *
-+ * Probe for the format of 'path', returning the detected
-+ * disk format.
-+ *
-+ * Callers are advised never to trust the returned 'format'
-+ * unless it is listed as VIR_STORAGE_FILE_RAW, since a
-+ * malicious guest can turn a raw file into any other non-raw
-+ * format at will.
-+ *
-+ * Best option: Don't use this function
-+ */
-+int
-+virStorageFileProbeFormat(const char *path)
-+{
-+    int fd, ret;
-+
-+    if ((fd = open(path, O_RDONLY)) < 0) {
-+        virReportSystemError(errno, _("cannot open file '%s'"), path);
-+        return -1;
-+    }
-+
-+    ret = virStorageFileProbeFormatFromFD(path, fd);
-+
-+    close(fd);
-+
-+    return ret;
- }
- 
-+/**
-+ * virStorageFileGetMetadataFromFD:
-+ *
-+ * Probe for the format of 'fd' (which is an open file descriptor
-+ * for the file 'path'), filling 'meta' with the detected
-+ * format and other associated metadata.
-+ *
-+ * Callers are advised never to trust the returned 'meta->format'
-+ * unless it is listed as VIR_STORAGE_FILE_RAW, since a
-+ * malicious guest can turn a raw file into any other non-raw
-+ * format at will.
-+ */
-+int
-+virStorageFileGetMetadataFromFD(const char *path,
-+                                int fd,
-+                                virStorageFileMetadata *meta)
-+{
-+    unsigned char *head;
-+    ssize_t len = STORAGE_MAX_HEAD;
-+    int ret = -1;
-+
-+    if (VIR_ALLOC_N(head, len) < 0) {
-+        virReportOOMError();
-+        return -1;
-+    }
-+
-+    memset(meta, 0, sizeof (*meta));
-+
-+    if (lseek(fd, 0, SEEK_SET) == (off_t)-1) {
-+        virReportSystemError(errno, _("cannot set to start of '%s'"), path);
-+        goto cleanup;
-+    }
-+
-+    if ((len = read(fd, head, len)) < 0) {
-+        virReportSystemError(errno, _("cannot read header '%s'"), path);
-+        goto cleanup;
-+    }
-+
-+    meta->format = virStorageFileProbeFormatFromBuf(path, head, len);
-+
-+    ret = virStorageFileGetMetadataFromBuf(meta->format, path, head, len, meta);
-+
-+cleanup:
-+    VIR_FREE(head);
-+    return ret;
-+}
-+
-+/**
-+ * virStorageFileGetMetadata:
-+ *
-+ * Probe for the format of 'path', filling 'meta' with the detected
-+ * format and other associated metadata.
-+ *
-+ * Callers are advised never to trust the returned 'meta->format'
-+ * unless it is listed as VIR_STORAGE_FILE_RAW, since a
-+ * malicious guest can turn a raw file into any other non-raw
-+ * format at will.
-+ */
- int
- virStorageFileGetMetadata(const char *path,
-                           virStorageFileMetadata *meta)
-diff --git a/src/util/storage_file.h b/src/util/storage_file.h
-index 6328ba7..3420d44 100644
--- a/src/util/storage_file.h
-+++ b/src/util/storage_file.h
-@@ -57,6 +57,10 @@ typedef struct _virStorageFileMetadata {
- #  define DEV_BSIZE 512
- # endif
- 
-+int virStorageFileProbeFormat(const char *path);
-+int virStorageFileProbeFormatFromFD(const char *path,
-+                                    int fd);
-+
- int virStorageFileGetMetadata(const char *path,
-                               virStorageFileMetadata *meta);
- int virStorageFileGetMetadataFromFD(const char *path,
-- 
-1.7.1.1
-
@@ -1,285 +0,0 @@
-From 726a63a437efd96510ce316bf30d16f213d4db27 Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Tue, 15 Jun 2010 16:15:51 +0100
-Subject: [PATCH 04/11] Require format to be passed into virStorageFileGetMetadata
-
-Require the disk image to be passed into virStorageFileGetMetadata.
-If this is set to VIR_STORAGE_FILE_AUTO, then the format will be
-resolved using probing. This makes it easier to control when
-probing will be used
-
-* src/qemu/qemu_driver.c, src/qemu/qemu_security_dac.c,
-  src/security/security_selinux.c, src/security/virt-aa-helper.c:
-  Set VIR_STORAGE_FILE_AUTO when calling virStorageFileGetMetadata.
-* src/storage/storage_backend_fs.c: Probe for disk format before
-  calling virStorageFileGetMetadata.
-* src/util/storage_file.h, src/util/storage_file.c: Remove format
-  from virStorageFileMeta struct & require it to be passed into
-  method.
---
- src/qemu/qemu_driver.c           |   27 +++++++++++++++++---
- src/qemu/qemu_security_dac.c     |    4 ++-
- src/security/security_selinux.c  |    4 ++-
- src/security/virt-aa-helper.c    |    4 ++-
- src/storage/storage_backend_fs.c |   11 ++++++--
- src/util/storage_file.c          |   50 +++++++++++++++++++++++++------------
- src/util/storage_file.h          |    3 +-
- 7 files changed, 76 insertions(+), 27 deletions(-)
-
-diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
-index 487bfa3..97f2990 100644
--- a/src/qemu/qemu_driver.c
-+++ b/src/qemu/qemu_driver.c
-@@ -3069,7 +3069,9 @@ static int qemuSetupDiskCgroup(virCgroupPtr cgroup,
-             }
-         }
- 
-        rc = virStorageFileGetMetadata(path, &meta);
-+        rc = virStorageFileGetMetadata(path,
-+                                       VIR_STORAGE_FILE_AUTO,
-+                                       &meta);
-         if (rc < 0)
-             VIR_WARN("Unable to lookup parent image for %s", path);
- 
-@@ -3119,7 +3121,9 @@ static int qemuTeardownDiskCgroup(virCgroupPtr cgroup,
-             }
-         }
- 
-        rc = virStorageFileGetMetadata(path, &meta);
-+        rc = virStorageFileGetMetadata(path,
-+                                       VIR_STORAGE_FILE_AUTO,
-+                                       &meta);
-         if (rc < 0)
-             VIR_WARN("Unable to lookup parent image for %s", path);
- 
-@@ -9614,6 +9618,7 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
-     virDomainDiskDefPtr disk = NULL;
-     struct stat sb;
-     int i;
-+    int format;
- 
-     virCheckFlags(0, -1);
- 
-@@ -9658,7 +9663,21 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
-     }
- 
-     /* Probe for magic formats */
-    if (virStorageFileGetMetadataFromFD(path, fd, &meta) < 0)
-+    if (disk->driverType) {
-+        if ((format = virStorageFileFormatTypeFromString(disk->driverType)) < 0) {
-+            qemuReportError(VIR_ERR_INTERNAL_ERROR,
-+                            _("unknown disk format %s for %s"),
-+                            disk->driverType, disk->src);
-+            goto cleanup;
-+        }
-+    } else {
-+        if ((format = virStorageFileProbeFormat(disk->src)) < 0)
-+            goto cleanup;
-+    }
-+
-+    if (virStorageFileGetMetadataFromFD(path, fd,
-+                                        format,
-+                                        &meta) < 0)
-         goto cleanup;
- 
-     /* Get info for normal formats */
-@@ -9706,7 +9725,7 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
-        highest allocated extent from QEMU */
-     if (virDomainObjIsActive(vm) &&
-         disk->type == VIR_DOMAIN_DISK_TYPE_BLOCK &&
-        meta.format != VIR_STORAGE_FILE_RAW &&
-+        format != VIR_STORAGE_FILE_RAW &&
-         S_ISBLK(sb.st_mode)) {
-         qemuDomainObjPrivatePtr priv = vm->privateData;
-         if (qemuDomainObjBeginJob(vm) < 0)
-diff --git a/src/qemu/qemu_security_dac.c b/src/qemu/qemu_security_dac.c
-index 95015b0..acfe48e 100644
--- a/src/qemu/qemu_security_dac.c
-+++ b/src/qemu/qemu_security_dac.c
-@@ -115,7 +115,9 @@ qemuSecurityDACSetSecurityImageLabel(virDomainObjPtr vm ATTRIBUTE_UNUSED,
-         virStorageFileMetadata meta;
-         int ret;
- 
-        ret = virStorageFileGetMetadata(path, &meta);
-+        ret = virStorageFileGetMetadata(path,
-+                                        VIR_STORAGE_FILE_AUTO,
-+                                        &meta);
- 
-         if (path != disk->src)
-             VIR_FREE(path);
-diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
-index e5eef19..5c0f002 100644
--- a/src/security/security_selinux.c
-+++ b/src/security/security_selinux.c
-@@ -457,7 +457,9 @@ SELinuxSetSecurityImageLabel(virDomainObjPtr vm,
-         virStorageFileMetadata meta;
-         int ret;
- 
-        ret = virStorageFileGetMetadata(path, &meta);
-+        ret = virStorageFileGetMetadata(path,
-+                                        VIR_STORAGE_FILE_AUTO,
-+                                        &meta);
- 
-         if (path != disk->src)
-             VIR_FREE(path);
-diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c
-index c66f107..2c045e6 100644
--- a/src/security/virt-aa-helper.c
-+++ b/src/security/virt-aa-helper.c
-@@ -830,7 +830,9 @@ get_files(vahControl * ctl)
-             do {
-                 virStorageFileMetadata meta;
- 
-                ret = virStorageFileGetMetadata(path, &meta);
-+                ret = virStorageFileGetMetadata(path,
-+                                                VIR_STORAGE_FILE_AUTO,
-+                                                &meta);
- 
-                 if (path != ctl->def->disks[i]->src)
-                     VIR_FREE(path);
-diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c
-index f0cd770..d3ac0fe 100644
--- a/src/storage/storage_backend_fs.c
-+++ b/src/storage/storage_backend_fs.c
-@@ -75,14 +75,19 @@ virStorageBackendProbeTarget(virStorageVolTargetPtr target,
- 
-     memset(&meta, 0, sizeof(meta));
- 
-    if (virStorageFileGetMetadataFromFD(target->path, fd, &meta) < 0) {
-+    if ((target->format = virStorageFileProbeFormatFromFD(target->path, fd)) < 0) {
-         close(fd);
-         return -1;
-     }
- 
-    close(fd);
-+    if (virStorageFileGetMetadataFromFD(target->path, fd,
-+                                        target->format,
-+                                        &meta) < 0) {
-+        close(fd);
-+        return -1;
-+    }
- 
-    target->format = meta.format;
-+    close(fd);
- 
-     if (backingStore) {
-         *backingStore = meta.backingStore;
-diff --git a/src/util/storage_file.c b/src/util/storage_file.c
-index 221268b..9712d92 100644
--- a/src/util/storage_file.c
-+++ b/src/util/storage_file.c
-@@ -696,18 +696,23 @@ virStorageFileProbeFormat(const char *path)
- /**
-  * virStorageFileGetMetadataFromFD:
-  *
- * Probe for the format of 'fd' (which is an open file descriptor
- * for the file 'path'), filling 'meta' with the detected
- * format and other associated metadata.
-+ * Extract metadata about the storage volume with the specified
-+ * image format. If image format is VIR_STORAGE_FILE_AUTO, it
-+ * will probe to automatically identify the format. 
-  *
- * Callers are advised never to trust the returned 'meta->format'
- * unless it is listed as VIR_STORAGE_FILE_RAW, since a
- * malicious guest can turn a raw file into any other non-raw
- * format at will.
-+ * Callers are advised never to use VIR_STORAGE_FILE_AUTO as a
-+ * format, since a malicious guest can turn a raw file into any
-+ * other non-raw format at will.
-+ *
-+ * If the returned meta.backingStoreFormat is VIR_STORAGE_FILE_AUTO
-+ * it indicates the image didn't specify an explicit format for its
-+ * backing store. Callers are advised against probing for the
-+ * backing store format in this case.
-  */
- int
- virStorageFileGetMetadataFromFD(const char *path,
-                                 int fd,
-+                                int format,
-                                 virStorageFileMetadata *meta)
- {
-     unsigned char *head;
-@@ -731,9 +736,16 @@ virStorageFileGetMetadataFromFD(const char *path,
-         goto cleanup;
-     }
- 
-    meta->format = virStorageFileProbeFormatFromBuf(path, head, len);
-+    if (format == VIR_STORAGE_FILE_AUTO)
-+        format = virStorageFileProbeFormatFromBuf(path, head, len);
-+
-+    if (format < 0 ||
-+        format >= VIR_STORAGE_FILE_LAST) {
-+        virReportSystemError(EINVAL, _("unknown storage file format %d"), format);
-+        return -1;
-+    }
- 
-    ret = virStorageFileGetMetadataFromBuf(meta->format, path, head, len, meta);
-+    ret = virStorageFileGetMetadataFromBuf(format, path, head, len, meta);
- 
- cleanup:
-     VIR_FREE(head);
-@@ -743,16 +755,22 @@ cleanup:
- /**
-  * virStorageFileGetMetadata:
-  *
- * Probe for the format of 'path', filling 'meta' with the detected
- * format and other associated metadata.
-+ * Extract metadata about the storage volume with the specified
-+ * image format. If image format is VIR_STORAGE_FILE_AUTO, it
-+ * will probe to automatically identify the format. 
-  *
- * Callers are advised never to trust the returned 'meta->format'
- * unless it is listed as VIR_STORAGE_FILE_RAW, since a
- * malicious guest can turn a raw file into any other non-raw
- * format at will.
-+ * Callers are advised never to use VIR_STORAGE_FILE_AUTO as a
-+ * format, since a malicious guest can turn a raw file into any
-+ * other non-raw format at will.
-+ *
-+ * If the returned meta.backingStoreFormat is VIR_STORAGE_FILE_AUTO
-+ * it indicates the image didn't specify an explicit format for its
-+ * backing store. Callers are advised against probing for the
-+ * backing store format in this case.
-  */
- int
- virStorageFileGetMetadata(const char *path,
-+                          int format,
-                           virStorageFileMetadata *meta)
- {
-     int fd, ret;
-@@ -762,7 +780,7 @@ virStorageFileGetMetadata(const char *path,
-         return -1;
-     }
- 
-    ret = virStorageFileGetMetadataFromFD(path, fd, meta);
-+    ret = virStorageFileGetMetadataFromFD(path, fd, format, meta);
- 
-     close(fd);
- 
-diff --git a/src/util/storage_file.h b/src/util/storage_file.h
-index 3420d44..6853182 100644
--- a/src/util/storage_file.h
-+++ b/src/util/storage_file.h
-@@ -46,7 +46,6 @@ enum virStorageFileFormat {
- VIR_ENUM_DECL(virStorageFileFormat);
- 
- typedef struct _virStorageFileMetadata {
-    int format;
-     char *backingStore;
-     int backingStoreFormat;
-     unsigned long long capacity;
-@@ -62,9 +61,11 @@ int virStorageFileProbeFormatFromFD(const char *path,
-                                     int fd);
- 
- int virStorageFileGetMetadata(const char *path,
-+                              int format,
-                               virStorageFileMetadata *meta);
- int virStorageFileGetMetadataFromFD(const char *path,
-                                     int fd,
-+                                    int format,
-                                     virStorageFileMetadata *meta);
- 
- int virStorageFileIsSharedFS(const char *path);
-- 
-1.7.1.1
-
@@ -1,170 +0,0 @@
-From ac5067f1e2e98181ee0e9230f756697f50d853eb Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Mon, 14 Jun 2010 18:09:15 +0100
-Subject: [PATCH 05/11] Add an API for iterating over disk paths
-
-There is duplicated code which iterates over disk backing stores
-performing some action. Provide a convenient helper for doing
-this to eliminate duplication & risk of mistakes with disk format
-probing
-
-* src/conf/domain_conf.c, src/conf/domain_conf.h,
-  src/libvirt_private.syms: Add virDomainDiskDefForeachPath()
---
- src/conf/domain_conf.c   |   99 ++++++++++++++++++++++++++++++++++++++++++++++
- src/conf/domain_conf.h   |   11 +++++
- src/libvirt_private.syms |    1 +
- 3 files changed, 111 insertions(+), 0 deletions(-)
-
-diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
-index 378c06e..b20ca97 100644
--- a/src/conf/domain_conf.c
-+++ b/src/conf/domain_conf.c
-@@ -45,6 +45,7 @@
- #include "macvtap.h"
- #include "nwfilter_conf.h"
- #include "ignore-value.h"
-+#include "storage_file.h"
- 
- #define VIR_FROM_THIS VIR_FROM_DOMAIN
- 
-@@ -7273,4 +7274,102 @@ done:
- }
- 
- 
-+int virDomainDiskDefForeachPath(virDomainDiskDefPtr disk,
-+                                bool allowProbing,
-+                                bool ignoreOpenFailure,
-+                                virDomainDiskDefPathIterator iter,
-+                                void *opaque)
-+{
-+    virHashTablePtr paths;
-+    int format;
-+    int ret = -1;
-+    size_t depth = 0;
-+    char *nextpath = NULL;
-+
-+    if (!disk->src)
-+        return 0;
-+
-+    if (disk->driverType) {
-+        const char *formatStr = disk->driverType;
-+        if (STREQ(formatStr, "aio"))
-+            formatStr = "raw"; /* Xen compat */
-+
-+        if ((format = virStorageFileFormatTypeFromString(formatStr)) < 0) {
-+            virDomainReportError(VIR_ERR_INTERNAL_ERROR,
-+                                 _("unknown disk format '%s' for %s"),
-+                                 disk->driverType, disk->src);
-+            return -1;
-+        }
-+    } else {
-+        if (allowProbing) {
-+            format = VIR_STORAGE_FILE_AUTO;
-+        } else {
-+            virDomainReportError(VIR_ERR_INTERNAL_ERROR,
-+                                 _("no disk format for %s and probing is disabled"),
-+                                 disk->src);
-+            return -1;
-+        }
-+    }
-+
-+    paths = virHashCreate(5);
-+
-+    do {
-+        virStorageFileMetadata meta;
-+        const char *path = nextpath ? nextpath : disk->src;
-+        int fd;
-+
-+        if (iter(disk, path, depth, opaque) < 0)
-+            goto cleanup;
-+
-+        if (virHashLookup(paths, path)) {
-+            virDomainReportError(VIR_ERR_INTERNAL_ERROR,
-+                                 _("backing store for %s is self-referential"),
-+                                 disk->src);
-+            goto cleanup;
-+        }
-+
-+        if ((fd = open(path, O_RDONLY)) < 0) {
-+            if (ignoreOpenFailure) {
-+                char ebuf[1024];
-+                VIR_WARN("Ignoring open failure on %s: %s", path,
-+                         virStrerror(errno, ebuf, sizeof(ebuf)));
-+                break;
-+            } else {
-+                virReportSystemError(errno,
-+                                     _("unable to open disk path %s"),
-+                                     path);
-+                goto cleanup;
-+            }
-+        }
-+
-+        if (virStorageFileGetMetadataFromFD(path, fd, format, &meta) < 0) {
-+            close(fd);
-+            goto cleanup;
-+        }
-+        close(fd);
-+
-+        if (virHashAddEntry(paths, path, (void*)0x1) < 0) {
-+            virReportOOMError();
-+            goto cleanup;
-+        }
-+
-+        depth++;
-+        nextpath = meta.backingStore;
-+
-+        format = meta.backingStoreFormat;
-+
-+        if (format == VIR_STORAGE_FILE_AUTO &&
-+            !allowProbing)
-+            format = VIR_STORAGE_FILE_RAW; /* Stops further recursion */
-+    } while (nextpath);
-+
-+    ret = 0;
-+
-+cleanup:
-+    virHashFree(paths, NULL);
-+    VIR_FREE(nextpath);
-+
-+    return ret;
-+}
-+
- #endif /* ! PROXY */
-diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
-index 01da17e..d46869e 100644
--- a/src/conf/domain_conf.h
-+++ b/src/conf/domain_conf.h
-@@ -1079,6 +1079,17 @@ int virDomainChrDefForeach(virDomainDefPtr def,
-                            void *opaque);
- 
- 
-+typedef int (*virDomainDiskDefPathIterator)(virDomainDiskDefPtr disk,
-+                                            const char *path,
-+                                            size_t depth,
-+                                            void *opaque);
-+
-+int virDomainDiskDefForeachPath(virDomainDiskDefPtr disk,
-+                                bool allowProbing,
-+                                bool ignoreOpenFailure,
-+                                virDomainDiskDefPathIterator iter,
-+                                void *opaque);
-+
- VIR_ENUM_DECL(virDomainVirt)
- VIR_ENUM_DECL(virDomainBoot)
- VIR_ENUM_DECL(virDomainFeature)
-diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
-index 4607f49..b5f3695 100644
--- a/src/libvirt_private.syms
-+++ b/src/libvirt_private.syms
-@@ -225,6 +225,7 @@ virDomainSnapshotDefFormat;
- virDomainSnapshotAssignDef;
- virDomainObjAssignDef;
- virDomainChrDefForeach;
-+virDomainDiskDefForeachPath;
- 
- 
- # domain_event.h
-- 
-1.7.1.1
-
@@ -1,506 +0,0 @@
-From 54c1bb731d2b19a46a594cf9682c022f1e1114d2 Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Tue, 15 Jun 2010 16:40:47 +0100
-Subject: [PATCH 06/11] Convert all disk backing store loops to shared helper API
-
-Update the QEMU cgroups code, QEMU DAC security driver, SELinux
-and AppArmour security drivers over to use the shared helper API
-virDomainDiskDefForeachPath().
-
-* src/qemu/qemu_driver.c, src/qemu/qemu_security_dac.c,
-  src/security/security_selinux.c, src/security/virt-aa-helper.c:
-  Convert over to use virDomainDiskDefForeachPath()
---
- src/qemu/qemu_driver.c          |  161 ++++++++++++++++----------------------
- src/qemu/qemu_security_dac.c    |   47 ++++--------
- src/security/security_selinux.c |   67 +++++++----------
- src/security/virt-aa-helper.c   |   71 ++++++++----------
- 4 files changed, 142 insertions(+), 204 deletions(-)
-
-diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
-index 97f2990..99aeffa 100644
--- a/src/qemu/qemu_driver.c
-+++ b/src/qemu/qemu_driver.c
-@@ -3040,107 +3040,82 @@ static const char *const defaultDeviceACL[] = {
- #define DEVICE_PTY_MAJOR 136
- #define DEVICE_SND_MAJOR 116
- 
-static int qemuSetupDiskCgroup(virCgroupPtr cgroup,
-                               virDomainObjPtr vm,
-                               virDomainDiskDefPtr disk)
-{
-    char *path = disk->src;
-    int ret = -1;
- 
-    while (path != NULL) {
-        virStorageFileMetadata meta;
-        int rc;
-+static int qemuSetupDiskPathAllow(virDomainDiskDefPtr disk ATTRIBUTE_UNUSED,
-+                                  const char *path,
-+                                  size_t depth ATTRIBUTE_UNUSED,
-+                                  void *opaque)
-+{
-+    virCgroupPtr cgroup = opaque;
-+    int rc;
- 
-        VIR_DEBUG("Process path '%s' for disk", path);
-        rc = virCgroupAllowDevicePath(cgroup, path);
-        if (rc != 0) {
-            /* Get this for non-block devices */
-            if (rc == -EINVAL) {
-                VIR_DEBUG("Ignoring EINVAL for %s", path);
-            } else if (rc == -EACCES) { /* Get this for root squash NFS */
-                VIR_DEBUG("Ignoring EACCES for %s", path);
-            } else {
-                virReportSystemError(-rc,
-                                     _("Unable to allow device %s for %s"),
-                                     path, vm->def->name);
-                if (path != disk->src)
-                    VIR_FREE(path);
-                goto cleanup;
-            }
-+    VIR_DEBUG("Process path %s for disk", path);
-+    /* XXX RO vs RW */
-+    rc = virCgroupAllowDevicePath(cgroup, path);
-+    if (rc != 0) {
-+        /* Get this for non-block devices */
-+        if (rc == -EINVAL) {
-+            VIR_DEBUG("Ignoring EINVAL for %s", path);
-+        } else if (rc == -EACCES) { /* Get this for root squash NFS */
-+            VIR_DEBUG("Ignoring EACCES for %s", path);
-+        } else {
-+            virReportSystemError(-rc,
-+                                 _("Unable to allow access for disk path %s"),
-+                                 path);
-+            return -1;
-         }
-
-        rc = virStorageFileGetMetadata(path,
-                                       VIR_STORAGE_FILE_AUTO,
-                                       &meta);
-        if (rc < 0)
-            VIR_WARN("Unable to lookup parent image for %s", path);
-
-        if (path != disk->src)
-            VIR_FREE(path);
-        path = NULL;
-
-        if (rc < 0)
-            break; /* Treating as non fatal */
-
-        path = meta.backingStore;
-     }
-+    return 0;
-+}
- 
-    ret = 0;
- 
-cleanup:
-    return ret;
-+static int qemuSetupDiskCgroup(virCgroupPtr cgroup,
-+                               virDomainDiskDefPtr disk)
-+{
-+    return virDomainDiskDefForeachPath(disk,
-+                                       true,
-+                                       true,
-+                                       qemuSetupDiskPathAllow,
-+                                       cgroup);
- }
- 
- 
-static int qemuTeardownDiskCgroup(virCgroupPtr cgroup,
-                                  virDomainObjPtr vm,
-                                  virDomainDiskDefPtr disk)
-+static int qemuTeardownDiskPathDeny(virDomainDiskDefPtr disk ATTRIBUTE_UNUSED,
-+                                    const char *path,
-+                                    size_t depth ATTRIBUTE_UNUSED,
-+                                    void *opaque)
- {
-    char *path = disk->src;
-    int ret = -1;
-
-    while (path != NULL) {
-        virStorageFileMetadata meta;
-        int rc;
-+    virCgroupPtr cgroup = opaque;
-+    int rc;
- 
-        VIR_DEBUG("Process path '%s' for disk", path);
-        rc = virCgroupDenyDevicePath(cgroup, path);
-        if (rc != 0) {
-            /* Get this for non-block devices */
-            if (rc == -EINVAL) {
-                VIR_DEBUG("Ignoring EINVAL for %s", path);
-            } else if (rc == -EACCES) { /* Get this for root squash NFS */
-                VIR_DEBUG("Ignoring EACCES for %s", path);
-            } else {
-                virReportSystemError(-rc,
-                                     _("Unable to deny device %s for %s"),
-                                     path, vm->def->name);
-                if (path != disk->src)
-                    VIR_FREE(path);
-                goto cleanup;
-            }
-+    VIR_DEBUG("Process path %s for disk", path);
-+    /* XXX RO vs RW */
-+    rc = virCgroupDenyDevicePath(cgroup, path);
-+    if (rc != 0) {
-+        /* Get this for non-block devices */
-+        if (rc == -EINVAL) {
-+            VIR_DEBUG("Ignoring EINVAL for %s", path);
-+        } else if (rc == -EACCES) { /* Get this for root squash NFS */
-+            VIR_DEBUG("Ignoring EACCES for %s", path);
-+        } else {
-+            virReportSystemError(-rc,
-+                                 _("Unable to allow access for disk path %s"),
-+                                 path);
-+            return -1;
-         }
-
-        rc = virStorageFileGetMetadata(path,
-                                       VIR_STORAGE_FILE_AUTO,
-                                       &meta);
-        if (rc < 0)
-            VIR_WARN("Unable to lookup parent image for %s", path);
-
-        if (path != disk->src)
-            VIR_FREE(path);
-        path = NULL;
-
-        if (rc < 0)
-            break; /* Treating as non fatal */
-
-        path = meta.backingStore;
-     }
-+    return 0;
-+}
- 
-    ret = 0;
- 
-cleanup:
-    return ret;
-+static int qemuTeardownDiskCgroup(virCgroupPtr cgroup,
-+                                  virDomainDiskDefPtr disk)
-+{
-+    return virDomainDiskDefForeachPath(disk,
-+                                       true,
-+                                       true,
-+                                       qemuTeardownDiskPathDeny,
-+                                       cgroup);
- }
- 
- 
-@@ -3204,7 +3179,7 @@ static int qemuSetupCgroup(struct qemud_driver *driver,
-         }
- 
-         for (i = 0; i < vm->def->ndisks ; i++) {
-            if (qemuSetupDiskCgroup(cgroup, vm, vm->def->disks[i]) < 0)
-+            if (qemuSetupDiskCgroup(cgroup, vm->def->disks[i]) < 0)
-                 goto cleanup;
-         }
- 
-@@ -8035,7 +8010,7 @@ static int qemudDomainAttachDevice(virDomainPtr dom,
-                                 vm->def->name);
-                 goto endjob;
-             }
-            if (qemuSetupDiskCgroup(cgroup, vm, dev->data.disk) < 0)
-+            if (qemuSetupDiskCgroup(cgroup, dev->data.disk) < 0)
-                 goto endjob;
-         }
- 
-@@ -8080,7 +8055,7 @@ static int qemudDomainAttachDevice(virDomainPtr dom,
-             /* Fallthrough */
-         }
-         if (ret != 0 && cgroup) {
-            if (qemuTeardownDiskCgroup(cgroup, vm, dev->data.disk) < 0)
-+            if (qemuTeardownDiskCgroup(cgroup, dev->data.disk) < 0)
-                 VIR_WARN("Failed to teardown cgroup for disk path %s",
-                          NULLSTR(dev->data.disk->src));
-         }
-@@ -8280,7 +8255,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
-                                 vm->def->name);
-                 goto endjob;
-             }
-            if (qemuSetupDiskCgroup(cgroup, vm, dev->data.disk) < 0)
-+            if (qemuSetupDiskCgroup(cgroup, dev->data.disk) < 0)
-                 goto endjob;
-         }
- 
-@@ -8303,7 +8278,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
-         }
- 
-         if (ret != 0 && cgroup) {
-            if (qemuTeardownDiskCgroup(cgroup, vm, dev->data.disk) < 0)
-+            if (qemuTeardownDiskCgroup(cgroup, dev->data.disk) < 0)
-                 VIR_WARN("Failed to teardown cgroup for disk path %s",
-                          NULLSTR(dev->data.disk->src));
-         }
-@@ -8430,7 +8405,7 @@ static int qemudDomainDetachPciDiskDevice(struct qemud_driver *driver,
-         VIR_WARN("Unable to restore security label on %s", dev->data.disk->src);
- 
-     if (cgroup != NULL) {
-        if (qemuTeardownDiskCgroup(cgroup, vm, dev->data.disk) < 0)
-+        if (qemuTeardownDiskCgroup(cgroup, dev->data.disk) < 0)
-             VIR_WARN("Failed to teardown cgroup for disk path %s",
-                      NULLSTR(dev->data.disk->src));
-     }
-@@ -8493,7 +8468,7 @@ static int qemudDomainDetachSCSIDiskDevice(struct qemud_driver *driver,
-         VIR_WARN("Unable to restore security label on %s", dev->data.disk->src);
- 
-     if (cgroup != NULL) {
-        if (qemuTeardownDiskCgroup(cgroup, vm, dev->data.disk) < 0)
-+        if (qemuTeardownDiskCgroup(cgroup, dev->data.disk) < 0)
-             VIR_WARN("Failed to teardown cgroup for disk path %s",
-                      NULLSTR(dev->data.disk->src));
-     }
-diff --git a/src/qemu/qemu_security_dac.c b/src/qemu/qemu_security_dac.c
-index acfe48e..770010d 100644
--- a/src/qemu/qemu_security_dac.c
-+++ b/src/qemu/qemu_security_dac.c
-@@ -98,45 +98,28 @@ err:
- 
- 
- static int
-+qemuSecurityDACSetSecurityFileLabel(virDomainDiskDefPtr disk ATTRIBUTE_UNUSED,
-+                                    const char *path,
-+                                    size_t depth ATTRIBUTE_UNUSED,
-+                                    void *opaque ATTRIBUTE_UNUSED)
-+{
-+    return qemuSecurityDACSetOwnership(path, driver->user, driver->group);
-+}
-+
-+
-+static int
- qemuSecurityDACSetSecurityImageLabel(virDomainObjPtr vm ATTRIBUTE_UNUSED,
-                                      virDomainDiskDefPtr disk)
- 
- {
-    const char *path;
-
-     if (!driver->privileged || !driver->dynamicOwnership)
-         return 0;
- 
-    if (!disk->src)
-        return 0;
-
-    path = disk->src;
-    do {
-        virStorageFileMetadata meta;
-        int ret;
-
-        ret = virStorageFileGetMetadata(path,
-                                        VIR_STORAGE_FILE_AUTO,
-                                        &meta);
-
-        if (path != disk->src)
-            VIR_FREE(path);
-        path = NULL;
-
-        if (ret < 0)
-            return -1;
-
-        if (meta.backingStore != NULL &&
-            qemuSecurityDACSetOwnership(meta.backingStore,
-                                        driver->user, driver->group) < 0) {
-            VIR_FREE(meta.backingStore);
-            return -1;
-        }
-
-        path = meta.backingStore;
-    } while (path != NULL);
-
-    return qemuSecurityDACSetOwnership(disk->src, driver->user, driver->group);
-+    return virDomainDiskDefForeachPath(disk,
-+                                       true,
-+                                       false,
-+                                       qemuSecurityDACSetSecurityFileLabel,
-+                                       NULL);
- }
- 
- 
-diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
-index 5c0f002..d191118 100644
--- a/src/security/security_selinux.c
-+++ b/src/security/security_selinux.c
-@@ -439,54 +439,43 @@ SELinuxRestoreSecurityImageLabel(virDomainObjPtr vm,
- 
- 
- static int
-+SELinuxSetSecurityFileLabel(virDomainDiskDefPtr disk,
-+                            const char *path,
-+                            size_t depth,
-+                            void *opaque)
-+{
-+    const virSecurityLabelDefPtr secdef = opaque;
-+
-+    if (depth == 0) {
-+        if (disk->shared) {
-+            return SELinuxSetFilecon(path, default_image_context);
-+        } else if (disk->readonly) {
-+            return SELinuxSetFilecon(path, default_content_context);
-+        } else if (secdef->imagelabel) {
-+            return SELinuxSetFilecon(path, secdef->imagelabel);
-+        } else {
-+            return 0;
-+        }
-+    } else {
-+        return SELinuxSetFilecon(path, default_content_context);
-+    }
-+}
-+
-+static int
- SELinuxSetSecurityImageLabel(virDomainObjPtr vm,
-                              virDomainDiskDefPtr disk)
- 
- {
-     const virSecurityLabelDefPtr secdef = &vm->def->seclabel;
-    const char *path;
- 
-     if (secdef->type == VIR_DOMAIN_SECLABEL_STATIC)
-         return 0;
- 
-    if (!disk->src)
-        return 0;
-
-    path = disk->src;
-    do {
-        virStorageFileMetadata meta;
-        int ret;
-
-        ret = virStorageFileGetMetadata(path,
-                                        VIR_STORAGE_FILE_AUTO,
-                                        &meta);
-
-        if (path != disk->src)
-            VIR_FREE(path);
-        path = NULL;
-
-        if (ret < 0)
-           break;
-
-        if (meta.backingStore != NULL &&
-            SELinuxSetFilecon(meta.backingStore,
-                              default_content_context) < 0) {
-            VIR_FREE(meta.backingStore);
-            return -1;
-        }
-
-        path = meta.backingStore;
-    } while (path != NULL);
-
-    if (disk->shared) {
-        return SELinuxSetFilecon(disk->src, default_image_context);
-    } else if (disk->readonly) {
-        return SELinuxSetFilecon(disk->src, default_content_context);
-    } else if (secdef->imagelabel) {
-        return SELinuxSetFilecon(disk->src, secdef->imagelabel);
-    }
-
-    return 0;
-+    return virDomainDiskDefForeachPath(disk,
-+                                       true,
-+                                       false,
-+                                       SELinuxSetSecurityFileLabel,
-+                                       secdef);
- }
- 
- 
-diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c
-index 2c045e6..9ed0cd3 100644
--- a/src/security/virt-aa-helper.c
-+++ b/src/security/virt-aa-helper.c
-@@ -36,7 +36,6 @@
- #include "uuid.h"
- #include "hostusb.h"
- #include "pci.h"
-#include "storage_file.h"
- 
- static char *progname;
- 
-@@ -801,6 +800,28 @@ file_iterate_pci_cb(pciDevice *dev ATTRIBUTE_UNUSED,
- }
- 
- static int
-+add_file_path(virDomainDiskDefPtr disk,
-+              const char *path,
-+              size_t depth,
-+              void *opaque)
-+{
-+    virBufferPtr buf = opaque;
-+    int ret;
-+
-+    if (depth == 0) {
-+        if (disk->readonly)
-+            ret = vah_add_file(buf, path, "r");
-+        else
-+            ret = vah_add_file(buf, path, "rw");
-+    } else {
-+        ret = vah_add_file(buf, path, "r");
-+    }
-+
-+    return ret;
-+}
-+
-+
-+static int
- get_files(vahControl * ctl)
- {
-     virBuffer buf = VIR_BUFFER_INITIALIZER;
-@@ -821,45 +842,15 @@ get_files(vahControl * ctl)
-         goto clean;
-     }
- 
-    for (i = 0; i < ctl->def->ndisks; i++)
-        if (ctl->def->disks[i] && ctl->def->disks[i]->src) {
-            int ret;
-            const char *path;
-
-            path = ctl->def->disks[i]->src;
-            do {
-                virStorageFileMetadata meta;
-
-                ret = virStorageFileGetMetadata(path,
-                                                VIR_STORAGE_FILE_AUTO,
-                                                &meta);
-
-                if (path != ctl->def->disks[i]->src)
-                    VIR_FREE(path);
-                path = NULL;
-
-                if (ret < 0) {
-                    vah_warning("could not open path, skipping");
-                    continue;
-                }
-
-                if (meta.backingStore != NULL &&
-                    (ret = vah_add_file(&buf, meta.backingStore, "rw")) != 0) {
-                    VIR_FREE(meta.backingStore);
-                    goto clean;
-                }
-
-                path = meta.backingStore;
-            } while (path != NULL);
-
-            if (ctl->def->disks[i]->readonly)
-                ret = vah_add_file(&buf, ctl->def->disks[i]->src, "r");
-            else
-                ret = vah_add_file(&buf, ctl->def->disks[i]->src, "rw");
-
-            if (ret != 0)
-                goto clean;
-        }
-+    for (i = 0; i < ctl->def->ndisks; i++) {
-+        int ret = virDomainDiskDefForeachPath(ctl->def->disks[i],
-+                                              true,
-+                                              false,
-+                                              add_file_path,
-+                                              &buf);
-+        if (ret != 0)
-+            goto clean;
-+    }
- 
-     for (i = 0; i < ctl->def->nserials; i++)
-         if (ctl->def->serials[i] && ctl->def->serials[i]->data.file.path)
-- 
-1.7.1.1
-
@@ -1,468 +0,0 @@
-From dac2b936e77f6c76c11f162e4b175492e4803acb Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Tue, 15 Jun 2010 17:58:58 +0100
-Subject: [PATCH 08/11] Disable all disk probing in QEMU driver & add config option to re-enable
-
-Disk format probing is now disabled by default. A new config
-option in /etc/qemu/qemu.conf will re-enable it for existing
-deployments where this causes trouble
---
- src/qemu/libvirtd_qemu.aug       |    1 +
- src/qemu/qemu.conf               |   12 ++++++++++++
- src/qemu/qemu_conf.c             |    4 ++++
- src/qemu/qemu_conf.h             |    1 +
- src/qemu/qemu_driver.c           |   36 +++++++++++++++++++++++-------------
- src/qemu/qemu_security_dac.c     |    2 +-
- src/qemu/test_libvirtd_qemu.aug  |    4 ++++
- src/security/security_apparmor.c |   12 ++++++++----
- src/security/security_driver.c   |   16 ++++++++++++++--
- src/security/security_driver.h   |   10 ++++++++--
- src/security/security_selinux.c  |    9 ++++++---
- src/security/virt-aa-helper.c    |   10 +++++++++-
- tests/seclabeltest.c             |    2 +-
- 13 files changed, 92 insertions(+), 27 deletions(-)
-
-diff --git a/src/qemu/libvirtd_qemu.aug b/src/qemu/libvirtd_qemu.aug
-index 7c9f271..47d0525 100644
--- a/src/qemu/libvirtd_qemu.aug
-+++ b/src/qemu/libvirtd_qemu.aug
-@@ -40,6 +40,7 @@ module Libvirtd_qemu =
-                  | bool_entry "relaxed_acs_check"
-                  | bool_entry "vnc_allow_host_audio"
-                  | bool_entry "clear_emulator_capabilities"
-+                 | bool_entry "allow_disk_format_probing"
- 
-    (* Each enty in the config is one of the following three ... *)
-    let entry = vnc_entry
-diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf
-index 93934f3..dc8eb83 100644
--- a/src/qemu/qemu.conf
-+++ b/src/qemu/qemu.conf
-@@ -187,3 +187,15 @@
- # exploit the privileges and possibly do damage to the host.
- #
- # clear_emulator_capabilities = 1
-+
-+
-+
-+# If allow_disk_format_probing is enabled, libvirt will probe disk
-+# images to attempt to identify their format, when not otherwise
-+# specified in the XML. This is disabled by default.
-+#
-+# WARNING: Enabling probing is a security hole in almost all
-+# deployments. It is strongly recommended that users update their
-+# guest XML <disk> elements to include  <driver type='XXXX'/>
-+# elements instead of enabling this option.
-+# allow_disk_format_probing = 1
-diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
-index 988220b..3ba48bf 100644
--- a/src/qemu/qemu_conf.c
-+++ b/src/qemu/qemu_conf.c
-@@ -365,6 +365,10 @@ int qemudLoadDriverConfig(struct qemud_driver *driver,
-     CHECK_TYPE ("clear_emulator_capabilities", VIR_CONF_LONG);
-     if (p) driver->clearEmulatorCapabilities = p->l;
- 
-+    p = virConfGetValue (conf, "allow_disk_format_probing");
-+    CHECK_TYPE ("allow_disk_format_probing", VIR_CONF_LONG);
-+    if (p) driver->allowDiskFormatProbing = p->l;
-+
-     virConfFree (conf);
-     return 0;
- }
-diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h
-index ab5f158..30e9f20 100644
--- a/src/qemu/qemu_conf.h
-+++ b/src/qemu/qemu_conf.h
-@@ -141,6 +141,7 @@ struct qemud_driver {
-     unsigned int relaxedACS : 1;
-     unsigned int vncAllowHostAudio : 1;
-     unsigned int clearEmulatorCapabilities : 1;
-+    unsigned int allowDiskFormatProbing : 1;
- 
-     virCapsPtr caps;
- 
-diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
-index 616547c..3c479c5 100644
--- a/src/qemu/qemu_driver.c
-+++ b/src/qemu/qemu_driver.c
-@@ -1322,7 +1322,8 @@ qemudSecurityInit(struct qemud_driver *qemud_drv)
-     qemuSecurityDACSetDriver(qemud_drv);
- 
-     ret = virSecurityDriverStartup(&security_drv,
-                                   qemud_drv->securityDriverName);
-+                                   qemud_drv->securityDriverName,
-+                                   qemud_drv->allowDiskFormatProbing);
-     if (ret == -1) {
-         VIR_ERROR0(_("Failed to start security driver"));
-         return -1;
-@@ -3070,11 +3071,12 @@ static int qemuSetupDiskPathAllow(virDomainDiskDefPtr disk ATTRIBUTE_UNUSED,
- }
- 
- 
-static int qemuSetupDiskCgroup(virCgroupPtr cgroup,
-+static int qemuSetupDiskCgroup(struct qemud_driver *driver,
-+                               virCgroupPtr cgroup,
-                                virDomainDiskDefPtr disk)
- {
-     return virDomainDiskDefForeachPath(disk,
-                                       true,
-+                                       driver->allowDiskFormatProbing,
-                                        true,
-                                        qemuSetupDiskPathAllow,
-                                        cgroup);
-@@ -3109,11 +3111,12 @@ static int qemuTeardownDiskPathDeny(virDomainDiskDefPtr disk ATTRIBUTE_UNUSED,
- }
- 
- 
-static int qemuTeardownDiskCgroup(virCgroupPtr cgroup,
-+static int qemuTeardownDiskCgroup(struct qemud_driver *driver,
-+                                  virCgroupPtr cgroup,
-                                   virDomainDiskDefPtr disk)
- {
-     return virDomainDiskDefForeachPath(disk,
-                                       true,
-+                                       driver->allowDiskFormatProbing,
-                                        true,
-                                        qemuTeardownDiskPathDeny,
-                                        cgroup);
-@@ -3180,7 +3183,7 @@ static int qemuSetupCgroup(struct qemud_driver *driver,
-         }
- 
-         for (i = 0; i < vm->def->ndisks ; i++) {
-            if (qemuSetupDiskCgroup(cgroup, vm->def->disks[i]) < 0)
-+            if (qemuSetupDiskCgroup(driver, cgroup, vm->def->disks[i]) < 0)
-                 goto cleanup;
-         }
- 
-@@ -8033,7 +8036,7 @@ static int qemudDomainAttachDevice(virDomainPtr dom,
-                                 vm->def->name);
-                 goto endjob;
-             }
-            if (qemuSetupDiskCgroup(cgroup, dev->data.disk) < 0)
-+            if (qemuSetupDiskCgroup(driver, cgroup, dev->data.disk) < 0)
-                 goto endjob;
-         }
- 
-@@ -8078,7 +8081,7 @@ static int qemudDomainAttachDevice(virDomainPtr dom,
-             /* Fallthrough */
-         }
-         if (ret != 0 && cgroup) {
-            if (qemuTeardownDiskCgroup(cgroup, dev->data.disk) < 0)
-+            if (qemuTeardownDiskCgroup(driver, cgroup, dev->data.disk) < 0)
-                 VIR_WARN("Failed to teardown cgroup for disk path %s",
-                          NULLSTR(dev->data.disk->src));
-         }
-@@ -8278,7 +8281,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
-                                 vm->def->name);
-                 goto endjob;
-             }
-            if (qemuSetupDiskCgroup(cgroup, dev->data.disk) < 0)
-+            if (qemuSetupDiskCgroup(driver, cgroup, dev->data.disk) < 0)
-                 goto endjob;
-         }
- 
-@@ -8301,7 +8304,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
-         }
- 
-         if (ret != 0 && cgroup) {
-            if (qemuTeardownDiskCgroup(cgroup, dev->data.disk) < 0)
-+            if (qemuTeardownDiskCgroup(driver, cgroup, dev->data.disk) < 0)
-                 VIR_WARN("Failed to teardown cgroup for disk path %s",
-                          NULLSTR(dev->data.disk->src));
-         }
-@@ -8429,7 +8432,7 @@ static int qemudDomainDetachPciDiskDevice(struct qemud_driver *driver,
-         VIR_WARN("Unable to restore security label on %s", dev->data.disk->src);
- 
-     if (cgroup != NULL) {
-        if (qemuTeardownDiskCgroup(cgroup, dev->data.disk) < 0)
-+        if (qemuTeardownDiskCgroup(driver, cgroup, dev->data.disk) < 0)
-             VIR_WARN("Failed to teardown cgroup for disk path %s",
-                      NULLSTR(dev->data.disk->src));
-     }
-@@ -8493,7 +8496,7 @@ static int qemudDomainDetachSCSIDiskDevice(struct qemud_driver *driver,
-         VIR_WARN("Unable to restore security label on %s", dev->data.disk->src);
- 
-     if (cgroup != NULL) {
-        if (qemuTeardownDiskCgroup(cgroup, dev->data.disk) < 0)
-+        if (qemuTeardownDiskCgroup(driver, cgroup, dev->data.disk) < 0)
-             VIR_WARN("Failed to teardown cgroup for disk path %s",
-                      NULLSTR(dev->data.disk->src));
-     }
-@@ -9672,8 +9675,15 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
-             goto cleanup;
-         }
-     } else {
-        if ((format = virStorageFileProbeFormat(disk->src)) < 0)
-+        if (driver->allowDiskFormatProbing) {
-+            if ((format = virStorageFileProbeFormat(disk->src)) < 0)
-+                goto cleanup;
-+        } else {
-+            qemuReportError(VIR_ERR_INTERNAL_ERROR,
-+                            _("no disk format for %s and probing is disabled"),
-+                            disk->src);
-             goto cleanup;
-+        }
-     }
- 
-     if (virStorageFileGetMetadataFromFD(path, fd,
-diff --git a/src/qemu/qemu_security_dac.c b/src/qemu/qemu_security_dac.c
-index 0bbcf69..55dc0c6 100644
--- a/src/qemu/qemu_security_dac.c
-+++ b/src/qemu/qemu_security_dac.c
-@@ -117,7 +117,7 @@ qemuSecurityDACSetSecurityImageLabel(virSecurityDriverPtr drv ATTRIBUTE_UNUSED,
-         return 0;
- 
-     return virDomainDiskDefForeachPath(disk,
-                                       true,
-+                                       driver->allowDiskFormatProbing,
-                                        false,
-                                        qemuSecurityDACSetSecurityFileLabel,
-                                        NULL);
-diff --git a/src/qemu/test_libvirtd_qemu.aug b/src/qemu/test_libvirtd_qemu.aug
-index 3326cc5..f0c4a0d 100644
--- a/src/qemu/test_libvirtd_qemu.aug
-+++ b/src/qemu/test_libvirtd_qemu.aug
-@@ -101,6 +101,8 @@ relaxed_acs_check = 1
- vnc_allow_host_audio = 1
- 
- clear_emulator_capabilities = 0
-+
-+allow_disk_format_probing = 1
- "
- 
-    test Libvirtd_qemu.lns get conf =
-@@ -212,3 +214,5 @@ clear_emulator_capabilities = 0
- { "vnc_allow_host_audio" = "1" }
- { "#empty" }
- { "clear_emulator_capabilities" = "0" }
-+{ "#empty" }
-+{ "allow_disk_format_probing" = "1" }
-diff --git a/src/security/security_apparmor.c b/src/security/security_apparmor.c
-index cb5c739..c5f9829 100644
--- a/src/security/security_apparmor.c
-+++ b/src/security/security_apparmor.c
-@@ -157,6 +157,8 @@ load_profile(virSecurityDriverPtr drv,
-     char *xml = NULL;
-     int pipefd[2];
-     pid_t child;
-+    const char *probe = virSecurityDriverGetAllowDiskFormatProbing(drv)
-+        ? "1" : "0";
- 
-     if (pipe(pipefd) < -1) {
-         virReportSystemError(errno, "%s", _("unable to create pipe"));
-@@ -172,19 +174,19 @@ load_profile(virSecurityDriverPtr drv,
- 
-     if (create) {
-         const char *const argv[] = {
-            VIRT_AA_HELPER, "-c", "-u", profile, NULL
-+            VIRT_AA_HELPER, "-p", probe, "-c", "-u", profile, NULL
-         };
-         ret = virExec(argv, NULL, NULL, &child,
-                       pipefd[0], NULL, NULL, VIR_EXEC_NONE);
-     } else if (fn) {
-         const char *const argv[] = {
-            VIRT_AA_HELPER, "-r", "-u", profile, "-f", fn, NULL
-+            VIRT_AA_HELPER, "-p", probe, "-r", "-u", profile, "-f", fn, NULL
-         };
-         ret = virExec(argv, NULL, NULL, &child,
-                       pipefd[0], NULL, NULL, VIR_EXEC_NONE);
-     } else {
-         const char *const argv[] = {
-            VIRT_AA_HELPER, "-r", "-u", profile, NULL
-+            VIRT_AA_HELPER, "-p", probe, "-r", "-u", profile, NULL
-         };
-         ret = virExec(argv, NULL, NULL, &child,
-                       pipefd[0], NULL, NULL, VIR_EXEC_NONE);
-@@ -347,9 +349,11 @@ AppArmorSecurityDriverProbe(void)
-  * currently not used.
-  */
- static int
-AppArmorSecurityDriverOpen(virSecurityDriverPtr drv)
-+AppArmorSecurityDriverOpen(virSecurityDriverPtr drv,
-+                           bool allowDiskFormatProbing)
- {
-     virSecurityDriverSetDOI(drv, SECURITY_APPARMOR_VOID_DOI);
-+    virSecurityDriverSetAllowDiskFormatProbing(drv, allowDiskFormatProbing);
-     return 0;
- }
- 
-diff --git a/src/security/security_driver.c b/src/security/security_driver.c
-index aac9f78..9e32fa4 100644
--- a/src/security/security_driver.c
-+++ b/src/security/security_driver.c
-@@ -56,7 +56,8 @@ virSecurityDriverVerify(virDomainDefPtr def)
- 
- int
- virSecurityDriverStartup(virSecurityDriverPtr *drv,
-                         const char *name)
-+                         const char *name,
-+                         bool allowDiskFormatProbing)
- {
-     unsigned int i;
- 
-@@ -72,7 +73,7 @@ virSecurityDriverStartup(virSecurityDriverPtr *drv,
-         switch (tmp->probe()) {
-         case SECURITY_DRIVER_ENABLE:
-             virSecurityDriverInit(tmp);
-            if (tmp->open(tmp) == -1) {
-+            if (tmp->open(tmp, allowDiskFormatProbing) == -1) {
-                 return -1;
-             } else {
-                 *drv = tmp;
-@@ -125,3 +126,14 @@ virSecurityDriverGetModel(virSecurityDriverPtr drv)
- {
-     return drv->name;
- }
-+
-+void virSecurityDriverSetAllowDiskFormatProbing(virSecurityDriverPtr drv,
-+                                                bool allowDiskFormatProbing)
-+{
-+    drv->_private.allowDiskFormatProbing = allowDiskFormatProbing;
-+}
-+
-+bool virSecurityDriverGetAllowDiskFormatProbing(virSecurityDriverPtr drv)
-+{
-+    return drv->_private.allowDiskFormatProbing;
-+}
-diff --git a/src/security/security_driver.h b/src/security/security_driver.h
-index 61c9eb0..d768f32 100644
--- a/src/security/security_driver.h
-+++ b/src/security/security_driver.h
-@@ -33,7 +33,8 @@ typedef struct _virSecurityDriverState virSecurityDriverState;
- typedef virSecurityDriverState *virSecurityDriverStatePtr;
- 
- typedef virSecurityDriverStatus (*virSecurityDriverProbe) (void);
-typedef int (*virSecurityDriverOpen) (virSecurityDriverPtr drv);
-+typedef int (*virSecurityDriverOpen) (virSecurityDriverPtr drv,
-+                                      bool allowDiskFormatProbing);
- typedef int (*virSecurityDomainRestoreImageLabel) (virSecurityDriverPtr drv,
-                                                    virDomainObjPtr vm,
-                                                    virDomainDiskDefPtr disk);
-@@ -102,12 +103,14 @@ struct _virSecurityDriver {
-      */
-     struct {
-         char doi[VIR_SECURITY_DOI_BUFLEN];
-+        bool allowDiskFormatProbing;
-     } _private;
- };
- 
- /* Global methods */
- int virSecurityDriverStartup(virSecurityDriverPtr *drv,
-                             const char *name);
-+                             const char *name,
-+                             bool allowDiskFormatProbing);
- 
- int
- virSecurityDriverVerify(virDomainDefPtr def);
-@@ -120,7 +123,10 @@ virSecurityDriverVerify(virDomainDefPtr def);
- void virSecurityDriverInit(virSecurityDriverPtr drv);
- int virSecurityDriverSetDOI(virSecurityDriverPtr drv,
-                             const char *doi);
-+void virSecurityDriverSetAllowDiskFormatProbing(virSecurityDriverPtr drv,
-+                                                bool allowDiskFormatProbing);
- const char *virSecurityDriverGetDOI(virSecurityDriverPtr drv);
- const char *virSecurityDriverGetModel(virSecurityDriverPtr drv);
-+bool virSecurityDriverGetAllowDiskFormatProbing(virSecurityDriverPtr drv);
- 
- #endif /* __VIR_SECURITY_H__ */
-diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
-index cc3812b..a9dd836 100644
--- a/src/security/security_selinux.c
-+++ b/src/security/security_selinux.c
-@@ -266,13 +266,15 @@ SELinuxSecurityDriverProbe(void)
- }
- 
- static int
-SELinuxSecurityDriverOpen(virSecurityDriverPtr drv)
-+SELinuxSecurityDriverOpen(virSecurityDriverPtr drv,
-+                          bool allowDiskFormatProbing)
- {
-     /*
-      * Where will the DOI come from?  SELinux configuration, or qemu
-      * configuration? For the moment, we'll just set it to "0".
-      */
-     virSecurityDriverSetDOI(drv, SECURITY_SELINUX_VOID_DOI);
-+    virSecurityDriverSetAllowDiskFormatProbing(drv, allowDiskFormatProbing);
-     return SELinuxInitialize();
- }
- 
-@@ -467,18 +469,19 @@ SELinuxSetSecurityFileLabel(virDomainDiskDefPtr disk,
- }
- 
- static int
-SELinuxSetSecurityImageLabel(virSecurityDriverPtr drv ATTRIBUTE_UNUSED,
-+SELinuxSetSecurityImageLabel(virSecurityDriverPtr drv,
-                              virDomainObjPtr vm,
-                              virDomainDiskDefPtr disk)
- 
- {
-     const virSecurityLabelDefPtr secdef = &vm->def->seclabel;
-+    bool allowDiskFormatProbing = virSecurityDriverGetAllowDiskFormatProbing(drv);
- 
-     if (secdef->type == VIR_DOMAIN_SECLABEL_STATIC)
-         return 0;
- 
-     return virDomainDiskDefForeachPath(disk,
-                                       true,
-+                                       allowDiskFormatProbing,
-                                        false,
-                                        SELinuxSetSecurityFileLabel,
-                                        secdef);
-diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c
-index 9ed0cd3..521545d 100644
--- a/src/security/virt-aa-helper.c
-+++ b/src/security/virt-aa-helper.c
-@@ -40,6 +40,7 @@
- static char *progname;
- 
- typedef struct {
-+    bool allowDiskFormatProbing;
-     char uuid[PROFILE_NAME_SIZE];       /* UUID of vm */
-     bool dryrun;                /* dry run */
-     char cmd;                   /* 'c'   create
-@@ -844,7 +845,7 @@ get_files(vahControl * ctl)
- 
-     for (i = 0; i < ctl->def->ndisks; i++) {
-         int ret = virDomainDiskDefForeachPath(ctl->def->disks[i],
-                                              true,
-+                                              ctl->allowDiskFormatProbing,
-                                               false,
-                                               add_file_path,
-                                               &buf);
-@@ -943,6 +944,7 @@ vahParseArgv(vahControl * ctl, int argc, char **argv)
- {
-     int arg, idx = 0;
-     struct option opt[] = {
-+        {"probing", 1, 0, 'p' },
-         {"add", 0, 0, 'a'},
-         {"create", 0, 0, 'c'},
-         {"dryrun", 0, 0, 'd'},
-@@ -991,6 +993,12 @@ vahParseArgv(vahControl * ctl, int argc, char **argv)
-                     PROFILE_NAME_SIZE) == NULL)
-                     vah_error(ctl, 1, "error copying UUID");
-                 break;
-+            case 'p':
-+                if (STREQ(optarg, "1"))
-+                    ctl->allowDiskFormatProbing = true;
-+                else
-+                    ctl->allowDiskFormatProbing = false;
-+                break;
-             default:
-                 vah_error(ctl, 1, "unsupported option");
-                 break;
-diff --git a/tests/seclabeltest.c b/tests/seclabeltest.c
-index 26d1f86..ef3f026 100644
--- a/tests/seclabeltest.c
-+++ b/tests/seclabeltest.c
-@@ -15,7 +15,7 @@ main (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
-     const char *doi, *model;
-     virSecurityDriverPtr security_drv;
- 
-    ret = virSecurityDriverStartup (&security_drv, "selinux");
-+    ret = virSecurityDriverStartup (&security_drv, "selinux", false);
-     if (ret == -1)
-     {
-         fprintf (stderr, "Failed to start security driver");
-- 
-1.7.1.1
-
@@ -1,94 +0,0 @@
-From 3534cd47a57ee9cf7041472511444784f14d6939 Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Mon, 14 Jun 2010 16:08:55 +0100
-Subject: [PATCH 09/11] Add ability to set a default driver name/type when parsing disks
-
-Record a default driver name/type in capabilities struct. Use this
-when parsing disks if value is not set in XML config.
-
-* src/conf/capabilities.h: Record default driver name/type for disks
-* src/conf/domain_conf.c: Fallback to default driver name/type
-  when parsing disks
-* src/qemu/qemu_driver.c: Set default driver name/type to raw
---
- src/conf/capabilities.h |    2 ++
- src/conf/domain_conf.c  |   16 +++++++++++++++-
- src/qemu/qemu_driver.c  |    8 ++++++++
- 3 files changed, 25 insertions(+), 1 deletions(-)
-
-diff --git a/src/conf/capabilities.h b/src/conf/capabilities.h
-index 9290c82..f676eb8 100644
--- a/src/conf/capabilities.h
-+++ b/src/conf/capabilities.h
-@@ -123,6 +123,8 @@ struct _virCaps {
-     virCapsGuestPtr *guests;
-     unsigned char macPrefix[VIR_MAC_PREFIX_BUFLEN];
-     unsigned int emulatorRequired : 1;
-+    const char *defaultDiskDriverName;
-+    const char *defaultDiskDriverType;
-     void *(*privateDataAllocFunc)(void);
-     void (*privateDataFreeFunc)(void *);
-     int (*privateDataXMLFormat)(virBufferPtr, void *);
-diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
-index b20ca97..f3b8cfa 100644
--- a/src/conf/domain_conf.c
-+++ b/src/conf/domain_conf.c
-@@ -1639,6 +1639,16 @@ virDomainDiskDefParseXML(virCapsPtr caps,
-     def->serial = serial;
-     serial = NULL;
- 
-+    if (!def->driverType &&
-+        caps->defaultDiskDriverType &&
-+        !(def->driverType = strdup(caps->defaultDiskDriverType)))
-+        goto no_memory;
-+
-+    if (!def->driverName &&
-+        caps->defaultDiskDriverName &&
-+        !(def->driverName = strdup(caps->defaultDiskDriverName)))
-+        goto no_memory;
-+
-     if (def->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE
-         && virDomainDiskDefAssignAddress(caps, def) < 0)
-         goto error;
-@@ -1659,6 +1669,9 @@ cleanup:
- 
-     return def;
- 
-+no_memory:
-+    virReportOOMError();
-+
-  error:
-     virDomainDiskDefFree(def);
-     def = NULL;
-@@ -4275,7 +4288,8 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps,
-     if (n && VIR_ALLOC_N(def->disks, n) < 0)
-         goto no_memory;
-     for (i = 0 ; i < n ; i++) {
-        virDomainDiskDefPtr disk = virDomainDiskDefParseXML(caps, nodes[i],
-+        virDomainDiskDefPtr disk = virDomainDiskDefParseXML(caps,
-+                                                            nodes[i],
-                                                             flags);
-         if (!disk)
-             goto error;
-diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
-index 3c479c5..14b790e 100644
--- a/src/qemu/qemu_driver.c
-+++ b/src/qemu/qemu_driver.c
-@@ -1357,6 +1357,14 @@ qemuCreateCapabilities(virCapsPtr oldcaps,
-         return NULL;
-     }
- 
-+    if (driver->allowDiskFormatProbing) {
-+        caps->defaultDiskDriverName = NULL;
-+        caps->defaultDiskDriverType = NULL;
-+    } else {
-+        caps->defaultDiskDriverName = "qemu";
-+        caps->defaultDiskDriverType = "raw";
-+    }
-+
-     /* Domain XML parser hooks */
-     caps->privateDataAllocFunc = qemuDomainObjPrivateAlloc;
-     caps->privateDataFreeFunc = qemuDomainObjPrivateFree;
-- 
-1.7.1.1
-
@@ -1,291 +0,0 @@
-From 2ba8625d6d148fa489586efabdfaf2ef20903762 Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Wed, 16 Jun 2010 14:14:05 +0100
-Subject: [PATCH 10/11] Rewrite qemu-img backing store format handling
-
-When creating qcow2 files with a backing store, it is important
-to set an explicit format to prevent QEMU probing. The storage
-backend was only doing this if it found a 'kvm-img' binary. This
-is wrong because plenty of kvm-img binaries don't support an
-explicit format, and plenty of 'qemu-img' binaries do support
-a format. The result was that most qcow2 files were not getting
-a backing store format.
-
-This patch runs 'qemu-img -h' to check for the two support
-argument formats
-
-  '-o backing_format=raw'
-  '-F raw'
-
-and use whichever option it finds
-
-* src/storage/storage_backend.c: Query binary to determine
-  how to set the backing store format
---
- src/storage/storage_backend.c |  214 +++++++++++++++++++++++++++++------------
- 1 files changed, 152 insertions(+), 62 deletions(-)
-
-diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c
-index aba8937..c185693 100644
--- a/src/storage/storage_backend.c
-+++ b/src/storage/storage_backend.c
-@@ -561,6 +561,69 @@ static int virStorageBackendCreateExecCommand(virStoragePoolObjPtr pool,
-     return 0;
- }
- 
-+enum {
-+    QEMU_IMG_BACKING_FORMAT_NONE = 0,
-+    QEMU_IMG_BACKING_FORMAT_FLAG,
-+    QEMU_IMG_BACKING_FORMAT_OPTIONS,
-+};
-+
-+static int virStorageBackendQEMUImgBackingFormat(const char *qemuimg)
-+{
-+    const char *const qemuarg[] = { qemuimg, "-h", NULL };
-+    const char *const qemuenv[] = { "LC_ALL=C", NULL };
-+    pid_t child = 0;
-+    int status;
-+    int newstdout = -1;
-+    char *help = NULL;
-+    enum { MAX_HELP_OUTPUT_SIZE = 1024*8 };
-+    int len;
-+    char *start;
-+    char *end;
-+    char *tmp;
-+    int ret = -1;
-+
-+    if (virExec(qemuarg, qemuenv, NULL,
-+                &child, -1, &newstdout, NULL, VIR_EXEC_CLEAR_CAPS) < 0)
-+        goto cleanup;
-+
-+    if ((len = virFileReadLimFD(newstdout, MAX_HELP_OUTPUT_SIZE, &help)) < 0) {
-+        virReportSystemError(errno,
-+                             _("Unable to read '%s -h' output"),
-+                             qemuimg);
-+        goto cleanup;
-+    }
-+
-+    start = strstr(help, " create ");
-+    end = strstr(start, "\n");
-+    if ((tmp = strstr(start, "-F fmt")) && tmp < end)
-+        ret = QEMU_IMG_BACKING_FORMAT_FLAG;
-+    else if ((tmp = strstr(start, "[-o options]")) && tmp < end)
-+        ret = QEMU_IMG_BACKING_FORMAT_OPTIONS;
-+    else
-+        ret = QEMU_IMG_BACKING_FORMAT_NONE;
-+
-+cleanup:
-+    VIR_FREE(help);
-+    close(newstdout);
-+rewait:
-+    if (child) {
-+        if (waitpid(child, &status, 0) != child) {
-+            if (errno == EINTR)
-+                goto rewait;
-+
-+            VIR_ERROR(_("Unexpected exit status from qemu %d pid %lu"),
-+                      WEXITSTATUS(status), (unsigned long)child);
-+        }
-+        if (WEXITSTATUS(status) != 0) {
-+            VIR_WARN("Unexpected exit status '%d', qemu probably failed",
-+                     WEXITSTATUS(status));
-+        }
-+    }
-+
-+    return ret;
-+}
-+
-+
- static int
- virStorageBackendCreateQemuImg(virConnectPtr conn,
-                                virStoragePoolObjPtr pool,
-@@ -568,10 +631,9 @@ virStorageBackendCreateQemuImg(virConnectPtr conn,
-                                virStorageVolDefPtr inputvol,
-                                unsigned int flags ATTRIBUTE_UNUSED)
- {
-    int ret;
-+    int ret = -1;
-     char size[100];
-     char *create_tool;
-    short use_kvmimg;
- 
-     const char *type = virStorageFileFormatTypeToString(vol->target.format);
-     const char *backingType = vol->backingStore.path ?
-@@ -582,41 +644,10 @@ virStorageBackendCreateQemuImg(virConnectPtr conn,
-     const char *inputPath = inputvol ? inputvol->target.path : NULL;
-     /* Treat input block devices as 'raw' format */
-     const char *inputType = inputPath ?
-                            virStorageFileFormatTypeToString(inputvol->type == VIR_STORAGE_VOL_BLOCK ? VIR_STORAGE_FILE_RAW : inputvol->target.format) :
-                            NULL;
-
-    const char **imgargv;
-    /* The extra NULL field is for indicating encryption (-e). */
-    const char *imgargvnormal[] = {
-        NULL, "create",
-        "-f", type,
-        vol->target.path,
-        size,
-        NULL,
-        NULL
-    };
-    /* Extra NULL fields are for including "backingType" when using
-     * kvm-img (-F backingType), and for indicating encryption (-e).
-     */
-    const char *imgargvbacking[] = {
-        NULL, "create",
-        "-f", type,
-        "-b", vol->backingStore.path,
-        vol->target.path,
-        size,
-        NULL,
-        NULL,
-        NULL,
-        NULL
-    };
-    const char *convargv[] = {
-        NULL, "convert",
-        "-f", inputType,
-        "-O", type,
-        inputPath,
-        vol->target.path,
-        NULL,
-    };
-+        virStorageFileFormatTypeToString(inputvol->type == VIR_STORAGE_VOL_BLOCK ?
-+                                         VIR_STORAGE_FILE_RAW :
-+                                         inputvol->target.format) :
-+        NULL;
- 
-     if (type == NULL) {
-         virStorageReportError(VIR_ERR_INTERNAL_ERROR,
-@@ -690,44 +721,103 @@ virStorageBackendCreateQemuImg(virConnectPtr conn,
-         }
-     }
- 
-    if ((create_tool = virFindFileInPath("kvm-img")) != NULL)
-        use_kvmimg = 1;
-    else if ((create_tool = virFindFileInPath("qemu-img")) != NULL)
-        use_kvmimg = 0;
-    else {
-+    /* Size in KB */
-+    snprintf(size, sizeof(size), "%lluK", vol->capacity/1024);
-+
-+    /* KVM is usually ahead of qemu on features, so try that first */
-+    create_tool = virFindFileInPath("kvm-img");
-+    if (!create_tool)
-+        create_tool = virFindFileInPath("qemu-img");
-+
-+    if (!create_tool) {
-         virStorageReportError(VIR_ERR_INTERNAL_ERROR,
-                               "%s", _("unable to find kvm-img or qemu-img"));
-         return -1;
-     }
- 
-     if (inputvol) {
-        convargv[0] = create_tool;
-        imgargv = convargv;
-+        const char *imgargv[] = {
-+            create_tool,
-+            "convert",
-+            "-f", inputType,
-+            "-O", type,
-+            inputPath,
-+            vol->target.path,
-+            NULL,
-+        };
-+
-+        ret = virStorageBackendCreateExecCommand(pool, vol, imgargv);
-     } else if (vol->backingStore.path) {
-        imgargvbacking[0] = create_tool;
-        if (use_kvmimg) {
-            imgargvbacking[6] = "-F";
-            imgargvbacking[7] = backingType;
-            imgargvbacking[8] = vol->target.path;
-            imgargvbacking[9] = size;
-+        const char *imgargv[] = {
-+            create_tool,
-+            "create",
-+            "-f", type,
-+            "-b", vol->backingStore.path,
-+            NULL,
-+            NULL,
-+            NULL,
-+            NULL,
-+            NULL,
-+            NULL
-+        };
-+        int imgformat = virStorageBackendQEMUImgBackingFormat(create_tool);
-+        char *optflag = NULL;
-+        if (imgformat < 0)
-+            goto cleanup;
-+
-+        switch (imgformat) {
-+        case QEMU_IMG_BACKING_FORMAT_FLAG:
-+            imgargv[6] = "-F";
-+            imgargv[7] = backingType;
-+            imgargv[8] = vol->target.path;
-+            imgargv[9] = size;
-+            if (vol->target.encryption != NULL)
-+                imgargv[10] = "-e";
-+            break;
-+
-+        case QEMU_IMG_BACKING_FORMAT_OPTIONS:
-+            if (virAsprintf(&optflag, "backing_fmt=%s", backingType) < 0) {
-+                virReportOOMError();
-+                goto cleanup;
-+            }
-+            imgargv[6] = "-o";
-+            imgargv[7] = optflag;
-+            imgargv[8] = vol->target.path;
-+            imgargv[9] = size;
-             if (vol->target.encryption != NULL)
-                imgargvbacking[10] = "-e";
-        } else if (vol->target.encryption != NULL)
-            imgargvbacking[8] = "-e";
-        imgargv = imgargvbacking;
-+                imgargv[10] = "-e";
-+            break;
-+
-+        default:
-+            VIR_INFO("Unable to set backing store format for %s with %s",
-+                     vol->target.path, create_tool);
-+            imgargv[6] = vol->target.path;
-+            imgargv[7] = size;
-+            if (vol->target.encryption != NULL)
-+                imgargv[8] = "-e";
-+        }
-+
-+        ret = virStorageBackendCreateExecCommand(pool, vol, imgargv);
-+        VIR_FREE(optflag);
-     } else {
-        imgargvnormal[0] = create_tool;
-        imgargv = imgargvnormal;
-+        /* The extra NULL field is for indicating encryption (-e). */
-+        const char *imgargv[] = {
-+            create_tool,
-+            "create",
-+            "-f", type,
-+            vol->target.path,
-+            size,
-+            NULL,
-+            NULL
-+        };
-         if (vol->target.encryption != NULL)
-             imgargv[6] = "-e";
-    }
- 
-+        ret = virStorageBackendCreateExecCommand(pool, vol, imgargv);
-+    }
- 
-    /* Size in KB */
-    snprintf(size, sizeof(size), "%lluK", vol->capacity/1024);
-
-    ret = virStorageBackendCreateExecCommand(pool, vol, imgargv);
-    VIR_FREE(imgargv[0]);
-+    cleanup:
-+    VIR_FREE(create_tool);
- 
-     return ret;
- }
-- 
-1.7.1.1
-
@@ -1,165 +0,0 @@
-From d33f44c2e74de28c89b64cdc2c0a6564662e075c Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Fri, 9 Jul 2010 11:28:40 +0100
-Subject: [PATCH 11/11] Use the extract backing store format in storage volume lookup
-
-The storage volume lookup code was probing for the backing store
-format, instead of using the format extracted from the file
-itself. This meant it could report in accurate information. If
-a format is included in the file, then use that in preference,
-with probing as a fallback.
-
-* src/storage/storage_backend_fs.c: Use extracted backing store
-  format
---
- src/storage/storage_backend_fs.c |   80 +++++++++++++++++---------------------
- 1 files changed, 36 insertions(+), 44 deletions(-)
-
-diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c
-index d3ac0fe..ffb0071 100644
--- a/src/storage/storage_backend_fs.c
-+++ b/src/storage/storage_backend_fs.c
-@@ -51,6 +51,7 @@
- static int
- virStorageBackendProbeTarget(virStorageVolTargetPtr target,
-                              char **backingStore,
-+                             int *backingStoreFormat,
-                              unsigned long long *allocation,
-                              unsigned long long *capacity,
-                              virStorageEncryptionPtr *encryption)
-@@ -58,6 +59,10 @@ virStorageBackendProbeTarget(virStorageVolTargetPtr target,
-     int fd, ret;
-     virStorageFileMetadata meta;
- 
-+    if (backingStore)
-+        *backingStore = NULL;
-+    if (backingStoreFormat)
-+        *backingStoreFormat = VIR_STORAGE_FILE_AUTO;
-     if (encryption)
-         *encryption = NULL;
- 
-@@ -89,22 +94,30 @@ virStorageBackendProbeTarget(virStorageVolTargetPtr target,
- 
-     close(fd);
- 
-    if (backingStore) {
-        *backingStore = meta.backingStore;
-        meta.backingStore = NULL;
-+    if (meta.backingStore) {
-+        if (backingStore) {
-+            *backingStore = meta.backingStore;
-+            meta.backingStore = NULL;
-+            if (meta.backingStoreFormat == VIR_STORAGE_FILE_AUTO) {
-+                if ((*backingStoreFormat = virStorageFileProbeFormat(*backingStore)) < 0) {
-+                    close(fd);
-+                    goto cleanup;
-+                }
-+            } else {
-+                *backingStoreFormat = meta.backingStoreFormat;
-+            }
-+        } else {
-+            VIR_FREE(meta.backingStore);
-+        }
-     }
- 
-    VIR_FREE(meta.backingStore);
-
-     if (capacity && meta.capacity)
-         *capacity = meta.capacity;
- 
-     if (encryption != NULL && meta.encrypted) {
-         if (VIR_ALLOC(*encryption) < 0) {
-             virReportOOMError();
-            if (backingStore)
-                VIR_FREE(*backingStore);
-            return -1;
-+            goto cleanup;
-         }
- 
-         switch (target->format) {
-@@ -124,6 +137,11 @@ virStorageBackendProbeTarget(virStorageVolTargetPtr target,
-     }
- 
-     return 0;
-+
-+cleanup:
-+    if (backingStore)
-+        VIR_FREE(*backingStore);
-+    return -1;
- }
- 
- #if WITH_STORAGE_FS
-@@ -585,6 +603,7 @@ virStorageBackendFileSystemRefresh(virConnectPtr conn ATTRIBUTE_UNUSED,
-     while ((ent = readdir(dir)) != NULL) {
-         int ret;
-         char *backingStore;
-+        int backingStoreFormat;
- 
-         if (VIR_ALLOC(vol) < 0)
-             goto no_memory;
-@@ -604,6 +623,7 @@ virStorageBackendFileSystemRefresh(virConnectPtr conn ATTRIBUTE_UNUSED,
- 
-         if ((ret = virStorageBackendProbeTarget(&vol->target,
-                                                 &backingStore,
-+                                                &backingStoreFormat,
-                                                 &vol->allocation,
-                                                 &vol->capacity,
-                                                 &vol->target.encryption)) < 0) {
-@@ -619,46 +639,18 @@ virStorageBackendFileSystemRefresh(virConnectPtr conn ATTRIBUTE_UNUSED,
-         }
- 
-         if (backingStore != NULL) {
-            if (vol->target.format == VIR_STORAGE_FILE_QCOW2 &&
-                STRPREFIX("fmt:", backingStore)) {
-                char *fmtstr = backingStore + 4;
-                char *path = strchr(fmtstr, ':');
-                if (!path) {
-                    VIR_FREE(backingStore);
-                } else {
-                    *path = '\0';
-                    if ((vol->backingStore.format =
-                         virStorageFileFormatTypeFromString(fmtstr)) < 0) {
-                        VIR_FREE(backingStore);
-                    } else {
-                        memmove(backingStore, path, strlen(path) + 1);
-                        vol->backingStore.path = backingStore;
-
-                        if (virStorageBackendUpdateVolTargetInfo(&vol->backingStore,
-                                                                 NULL,
-                                                                 NULL) < 0)
-                            VIR_FREE(vol->backingStore);
-                    }
-                }
-            } else {
-                vol->backingStore.path = backingStore;
-
-                if ((ret = virStorageBackendProbeTarget(&vol->backingStore,
-                                                        NULL, NULL, NULL,
-                                                        NULL)) < 0) {
-                    if (ret == -1)
-                        goto cleanup;
-                    else {
-                        /* Silently ignore non-regular files,
-                         * eg '.' '..', 'lost+found' */
-                        VIR_FREE(vol->backingStore);
-                    }
-                }
-+            vol->backingStore.path = backingStore;
-+            vol->backingStore.format = backingStoreFormat;
-+
-+            if (virStorageBackendUpdateVolTargetInfo(&vol->backingStore,
-+                                                     NULL,
-+                                                     NULL) < 0) {
-+                VIR_FREE(vol->backingStore.path);
-+                goto cleanup;
-             }
-         }
- 
- 
-
-         if (VIR_REALLOC_N(pool->volumes.objs,
-                           pool->volumes.count+1) < 0)
-             goto no_memory;
-- 
-1.7.1.1
-
@@ -1,265 +0,0 @@
-From 112a309bc7839e95c558b535143f855ce89cca8c Mon Sep 17 00:00:00 2001
-From: Daniel P. Berrange <berrange@redhat.com>
-Date: Thu, 10 Jun 2010 12:50:38 -0400
-Subject: [PATCH] CVE-2010-2242 Apply a source port mapping to virtual network masquerading
-
-IPtables will seek to preserve the source port unchanged when
-doing masquerading, if possible. NFS has a pseudo-security
-option where it checks for the source port <= 1023 before
-allowing a mount request. If an admin has used this to make the
-host OS trusted for mounts, the default iptables behaviour will
-potentially allow NAT'd guests access too. This needs to be
-stopped.
-
-With this change, the iptables -t nat -L -n -v rules for the
-default network will be
-
-Chain POSTROUTING (policy ACCEPT 95 packets, 9163 bytes)
- pkts bytes target     prot opt in     out     source               destination
-   14   840 MASQUERADE  tcp  --  *      *       192.168.122.0/24    !192.168.122.0/24    masq ports: 1024-65535
-   75  5752 MASQUERADE  udp  --  *      *       192.168.122.0/24    !192.168.122.0/24    masq ports: 1024-65535
-    0     0 MASQUERADE  all  --  *      *       192.168.122.0/24    !192.168.122.0/24
-
-* src/network/bridge_driver.c: Add masquerade rules for TCP
-  and UDP protocols
-* src/util/iptables.c, src/util/iptables.c: Add source port
-  mappings for TCP & UDP protocols when masquerading.
---
- src/network/bridge_driver.c |   73 ++++++++++++++++++++++++++++++++++++++++--
- src/util/iptables.c         |   70 +++++++++++++++++++++++++++++------------
- src/util/iptables.h         |    6 ++-
- 3 files changed, 122 insertions(+), 27 deletions(-)
-
-diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
-index 72255c1..80ed57a 100644
--- a/src/network/bridge_driver.c
-+++ b/src/network/bridge_driver.c
-@@ -638,18 +638,74 @@ networkAddMasqueradingIptablesRules(struct network_driver *driver,
-         goto masqerr2;
-     }
- 
-    /* enable masquerading */
-+    /*
-+     * Enable masquerading.
-+     *
-+     * We need to end up with 3 rules in the table in this order
-+     *
-+     *  1. protocol=tcp with sport mapping restricton
-+     *  2. protocol=udp with sport mapping restricton
-+     *  3. generic any protocol
-+     *
-+     * The sport mappings are required, because default IPtables
-+     * MASQUERADE is maintain port number unchanged where possible.
-+     *
-+     * NFS can be configured to only "trust" port numbers < 1023.
-+     *
-+     * Guests using NAT thus need to be prevented from having port
-+     * numbers < 1023, otherwise they can bypass the NFS "security"
-+     * check on the source port number.
-+     *
-+     * Since we use '--insert' to add rules to the header of the
-+     * chain, we actually need to add them in the reverse of the
-+     * order just mentioned !
-+     */
-+
-+    /* First the generic masquerade rule for other protocols */
-     if ((err = iptablesAddForwardMasquerade(driver->iptables,
-                                             network->def->network,
-                                            network->def->forwardDev))) {
-+                                            network->def->forwardDev,
-+                                            NULL))) {
-         virReportSystemError(err,
-                              _("failed to add iptables rule to enable masquerading to '%s'"),
-                              network->def->forwardDev ? network->def->forwardDev : NULL);
-         goto masqerr3;
-     }
- 
-+    /* UDP with a source port restriction */
-+    if ((err = iptablesAddForwardMasquerade(driver->iptables,
-+                                            network->def->network,
-+                                            network->def->forwardDev,
-+                                            "udp"))) {
-+        virReportSystemError(err,
-+                             _("failed to add iptables rule to enable UDP masquerading to '%s'"),
-+                             network->def->forwardDev ? network->def->forwardDev : NULL);
-+        goto masqerr4;
-+    }
-+
-+    /* TCP with a source port restriction */
-+    if ((err = iptablesAddForwardMasquerade(driver->iptables,
-+                                            network->def->network,
-+                                            network->def->forwardDev,
-+                                            "tcp"))) {
-+        virReportSystemError(err,
-+                             _("failed to add iptables rule to enable TCP masquerading to '%s'"),
-+                             network->def->forwardDev ? network->def->forwardDev : NULL);
-+        goto masqerr5;
-+    }
-+
-     return 1;
- 
-+ masqerr5:
-+    iptablesRemoveForwardMasquerade(driver->iptables,
-+                                    network->def->network,
-+                                    network->def->forwardDev,
-+                                    "udp");
-+ masqerr4:
-+    iptablesRemoveForwardMasquerade(driver->iptables,
-+                                    network->def->network,
-+                                    network->def->forwardDev,
-+                                    NULL);
-  masqerr3:
-     iptablesRemoveForwardAllowRelatedIn(driver->iptables,
-                                  network->def->network,
-@@ -814,8 +870,17 @@ networkRemoveIptablesRules(struct network_driver *driver,
-     if (network->def->forwardType != VIR_NETWORK_FORWARD_NONE) {
-         if (network->def->forwardType == VIR_NETWORK_FORWARD_NAT) {
-             iptablesRemoveForwardMasquerade(driver->iptables,
-                                                network->def->network,
-                                                network->def->forwardDev);
-+                                            network->def->network,
-+                                            network->def->forwardDev,
-+                                            "tcp");
-+            iptablesRemoveForwardMasquerade(driver->iptables,
-+                                            network->def->network,
-+                                            network->def->forwardDev,
-+                                            "udp");
-+            iptablesRemoveForwardMasquerade(driver->iptables,
-+                                            network->def->network,
-+                                            network->def->forwardDev,
-+                                            NULL);
-             iptablesRemoveForwardAllowRelatedIn(driver->iptables,
-                                                 network->def->network,
-                                                 network->def->bridge,
-diff --git a/src/util/iptables.c b/src/util/iptables.c
-index d06b857..f63e8c6 100644
--- a/src/util/iptables.c
-+++ b/src/util/iptables.c
-@@ -692,25 +692,49 @@ iptablesRemoveForwardRejectIn(iptablesContext *ctx,
-  */
- static int
- iptablesForwardMasquerade(iptablesContext *ctx,
-                       const char *network,
-                       const char *physdev,
-                       int action)
-+                          const char *network,
-+                          const char *physdev,
-+                          const char *protocol,
-+                          int action)
- {
-    if (physdev && physdev[0]) {
-        return iptablesAddRemoveRule(ctx->nat_postrouting,
-                                     action,
-                                     "--source", network,
-                                     "!", "--destination", network,
-                                     "--out-interface", physdev,
-                                     "--jump", "MASQUERADE",
-                                     NULL);
-+    if (protocol && protocol[0]) {
-+        if (physdev && physdev[0]) {
-+            return iptablesAddRemoveRule(ctx->nat_postrouting,
-+                                         action,
-+                                         "--source", network,
-+                                         "-p", protocol,
-+                                         "!", "--destination", network,
-+                                         "--out-interface", physdev,
-+                                         "--jump", "MASQUERADE",
-+                                         "--to-ports", "1024-65535",
-+                                         NULL);
-+        } else {
-+            return iptablesAddRemoveRule(ctx->nat_postrouting,
-+                                         action,
-+                                         "--source", network,
-+                                         "-p", protocol,
-+                                         "!", "--destination", network,
-+                                         "--jump", "MASQUERADE",
-+                                         "--to-ports", "1024-65535",
-+                                         NULL);
-+        }
-     } else {
-        return iptablesAddRemoveRule(ctx->nat_postrouting,
-                                     action,
-                                     "--source", network,
-                                     "!", "--destination", network,
-                                     "--jump", "MASQUERADE",
-                                     NULL);
-+        if (physdev && physdev[0]) {
-+            return iptablesAddRemoveRule(ctx->nat_postrouting,
-+                                         action,
-+                                         "--source", network,
-+                                         "!", "--destination", network,
-+                                         "--out-interface", physdev,
-+                                         "--jump", "MASQUERADE",
-+                                         NULL);
-+        } else {
-+            return iptablesAddRemoveRule(ctx->nat_postrouting,
-+                                         action,
-+                                         "--source", network,
-+                                         "!", "--destination", network,
-+                                         "--jump", "MASQUERADE",
-+                                         NULL);
-+        }
-     }
- }
- 
-@@ -719,6 +743,7 @@ iptablesForwardMasquerade(iptablesContext *ctx,
-  * @ctx: pointer to the IP table context
-  * @network: the source network name
-  * @physdev: the physical input device or NULL
-+ * @protocol: the network protocol or NULL
-  *
-  * Add rules to the IP table context to allow masquerading
-  * network @network on @physdev. This allow the bridge to
-@@ -729,9 +754,10 @@ iptablesForwardMasquerade(iptablesContext *ctx,
- int
- iptablesAddForwardMasquerade(iptablesContext *ctx,
-                              const char *network,
-                             const char *physdev)
-+                             const char *physdev,
-+                             const char *protocol)
- {
-    return iptablesForwardMasquerade(ctx, network, physdev, ADD);
-+    return iptablesForwardMasquerade(ctx, network, physdev, protocol, ADD);
- }
- 
- /**
-@@ -739,6 +765,7 @@ iptablesAddForwardMasquerade(iptablesContext *ctx,
-  * @ctx: pointer to the IP table context
-  * @network: the source network name
-  * @physdev: the physical input device or NULL
-+ * @protocol: the network protocol or NULL
-  *
-  * Remove rules from the IP table context to stop masquerading
-  * network @network on @physdev. This stops the bridge from
-@@ -749,7 +776,8 @@ iptablesAddForwardMasquerade(iptablesContext *ctx,
- int
- iptablesRemoveForwardMasquerade(iptablesContext *ctx,
-                                 const char *network,
-                                const char *physdev)
-+                                const char *physdev,
-+                                const char *protocol)
- {
-    return iptablesForwardMasquerade(ctx, network, physdev, REMOVE);
-+    return iptablesForwardMasquerade(ctx, network, physdev, protocol, REMOVE);
- }
-diff --git a/src/util/iptables.h b/src/util/iptables.h
-index 7d55a6d..b47d854 100644
--- a/src/util/iptables.h
-+++ b/src/util/iptables.h
-@@ -85,9 +85,11 @@ int              iptablesRemoveForwardRejectIn   (iptablesContext *ctx,
- 
- int              iptablesAddForwardMasquerade    (iptablesContext *ctx,
-                                                   const char *network,
-                                                  const char *physdev);
-+                                                  const char *physdev,
-+                                                  const char *protocol);
- int              iptablesRemoveForwardMasquerade (iptablesContext *ctx,
-                                                   const char *network,
-                                                  const char *physdev);
-+                                                  const char *physdev,
-+                                                  const char *protocol);
- 
- #endif /* __QEMUD_IPTABLES_H__ */
-- 
-1.6.6.1
-
@@ -1 +1 @@
-14164638fe0e7f65e425acc85dabc517  libvirt-0.8.2.tar.gz
+SHA512 (libvirt-3.2.1.tar.xz) = 4ec4faceedcad3a5419e91444b0c83adcbed0ff6482fb53c058a75412064de69e09fd096de4a30b8c1149da6ba03287b10e8af925b01d725e655658035e43d9a