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
36 changed files with 4027 additions and 1993 deletions
@@ -1,31 +0,0 @@
-[suppress_function]
-symbol_version_regexp = LIBVIRT_PRIVATE.*
-soname_regexp = libvirt\\.so.*
-
-[suppress_function]
-symbol_version_regexp = LIBVIRT_ADMIN_PRIVATE.*
-soname_regexp = libvirt-admin\\.so.*
-
-[suppress_variable]
-symbol_version_regexp = LIBVIRT_PRIVATE.*
-soname_regexp = libvirt\\.so.*
-
-[suppress_variable]
-symbol_version_regexp = LIBVIRT_ADMIN_PRIVATE.*
-soname_regexp = libvirt-admin\\.so.*
-
-[suppress_function]
-symbol_version_regexp = .*
-soname_regexp = libvirt_storage_.*\\.so.*
-
-[suppress_variable]
-symbol_version_regexp = .*
-soname_regexp = libvirt_storage_.*\\.so.*
-
-[suppress_function]
-symbol_version_regexp = .*
-soname_regexp = libvirt_driver_.*\\.so.*
-
-[suppress_variable]
-symbol_version_regexp = .*
-soname_regexp = libvirt_driver_.*\\.so.*
@@ -1,40 +0,0 @@
-From 76cdc7adf55723ff8da146bd3c15c64d0afd5d93 Mon Sep 17 00:00:00 2001
-From: Martin Kletzander <mkletzan@redhat.com>
-Date: Tue, 27 Feb 2024 16:20:12 +0100
-Subject: [PATCH] Fix off-by-one error in udevListInterfacesByStatus
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Ever since this function was introduced in 2012 it could've tried
-filling in an extra interface name.  That was made worse in 2019 when
-the caller functions started accepting NULL arrays of size 0.
-
-This is assigned CVE-2024-1441.
-
-Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
-Reported-by: Alexander Kuznetsov <kuznetsovam@altlinux.org>
-Fixes: 5a33366f5c0b18c93d161bd144f9f079de4ac8ca
-Fixes: d6064e2759a24e0802f363e3a810dc5a7d7ebb15
-Reviewed-by: Ján Tomko <jtomko@redhat.com>
-(cherry picked from commit c664015fe3a7bf59db26686e9ed69af011c6ebb8)
---
- src/interface/interface_backend_udev.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/interface/interface_backend_udev.c b/src/interface/interface_backend_udev.c
-index fb6799ed94..4091483060 100644
--- a/src/interface/interface_backend_udev.c
-+++ b/src/interface/interface_backend_udev.c
-@@ -222,7 +222,7 @@ udevListInterfacesByStatus(virConnectPtr conn,
-         g_autoptr(virInterfaceDef) def = NULL;
- 
-         /* Ensure we won't exceed the size of our array */
-        if (count > names_len)
-+        if (count >= names_len)
-             break;
- 
-         path = udev_list_entry_get_name(dev_entry);
-- 
-2.43.0
-
@@ -1,41 +0,0 @@
-From 3499354e12a1c1832bf4030693a64e03ceb79d05 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
-Date: Wed, 5 Jun 2024 11:16:21 +0100
-Subject: [PATCH] interface: fix udev reference leak with invalid flags
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The udevInterfaceGetXMLDesc method takes a reference on the udev
-driver as its first action. If the virCheckFlags() condition
-fails, however, this reference is never released.
-
-Reviewed-by: Peter Krempa <pkrempa@redhat.com>
-Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
- src/interface/interface_backend_udev.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/src/interface/interface_backend_udev.c b/src/interface/interface_backend_udev.c
-index fdf11a8318..e1a50389c9 100644
--- a/src/interface/interface_backend_udev.c
-+++ b/src/interface/interface_backend_udev.c
-@@ -1027,12 +1027,14 @@ static char *
- udevInterfaceGetXMLDesc(virInterfacePtr ifinfo,
-                         unsigned int flags)
- {
-    struct udev *udev = udev_ref(driver->udev);
-+    struct udev *udev = NULL;
-     g_autoptr(virInterfaceDef) ifacedef = NULL;
-     char *xmlstr = NULL;
- 
-     virCheckFlags(VIR_INTERFACE_XML_INACTIVE, NULL);
- 
-+    udev = udev_ref(driver->udev);
-+
-     /* Recursively build up the interface XML based on the requested
-      * interface name
-      */
-- 
-2.45.1
-
@@ -1,90 +0,0 @@
-From c120b31f826cd51127d28f8beaa61ac0d5f03048 Mon Sep 17 00:00:00 2001
-From: Dmitry Frolov <frolov@swemel.ru>
-Date: Tue, 12 Sep 2023 15:56:47 +0300
-Subject: [PATCH] interface: fix udev_device_get_sysattr_value return value
- check
-
-Reviewing the code I found that return value of function
-udev_device_get_sysattr_value() is dereferenced without a check.
-udev_device_get_sysattr_value() may return NULL by number of reasons.
-
-v2: VIR_DEBUG added, replaced STREQ(NULLSTR()) with STREQ_NULLABLE()
-v3: More checks added, to skip earlier. More verbose VIR_DEBUG.
-
-Signed-off-by: Dmitry Frolov <frolov@swemel.ru>
-Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
-(cherry picked from commit 2ca94317ac642a70921947150ced8acc674ccdc8)
---
- src/interface/interface_backend_udev.c | 26 +++++++++++++++++++-------
- 1 file changed, 19 insertions(+), 7 deletions(-)
-
-diff --git a/src/interface/interface_backend_udev.c b/src/interface/interface_backend_udev.c
-index a0485ddd21..fb6799ed94 100644
--- a/src/interface/interface_backend_udev.c
-+++ b/src/interface/interface_backend_udev.c
-@@ -23,6 +23,7 @@
- #include <dirent.h>
- #include <libudev.h>
- 
-+#include "virlog.h"
- #include "virerror.h"
- #include "virfile.h"
- #include "datatypes.h"
-@@ -40,6 +41,8 @@
- 
- #define VIR_FROM_THIS VIR_FROM_INTERFACE
- 
-+VIR_LOG_INIT("interface.interface_backend_udev");
-+
- struct udev_iface_driver {
-     struct udev *udev;
-     /* pid file FD, ensures two copies of the driver can't use the same root */
-@@ -354,11 +357,20 @@ udevConnectListAllInterfaces(virConnectPtr conn,
-         const char *macaddr;
-         g_autoptr(virInterfaceDef) def = NULL;
- 
-        path = udev_list_entry_get_name(dev_entry);
-        dev = udev_device_new_from_syspath(udev, path);
-        name = udev_device_get_sysname(dev);
-+        if (!(path = udev_list_entry_get_name(dev_entry))) {
-+            VIR_DEBUG("Skipping interface, path == NULL");
-+            continue;
-+        }
-+        if (!(dev = udev_device_new_from_syspath(udev, path))) {
-+            VIR_DEBUG("Skipping interface '%s', dev == NULL", path);
-+            continue;
-+        }
-+        if (!(name = udev_device_get_sysname(dev))) {
-+            VIR_DEBUG("Skipping interface '%s', name == NULL", path);
-+            continue;
-+        }
-         macaddr = udev_device_get_sysattr_value(dev, "address");
-        status = STREQ(udev_device_get_sysattr_value(dev, "operstate"), "up");
-+        status = STREQ_NULLABLE(udev_device_get_sysattr_value(dev, "operstate"), "up");
- 
-         def = udevGetMinimalDefForDevice(dev);
-         if (!virConnectListAllInterfacesCheckACL(conn, def)) {
-@@ -964,9 +976,9 @@ udevGetIfaceDef(struct udev *udev, const char *name)
- 
-     /* MTU */
-     mtu_str = udev_device_get_sysattr_value(dev, "mtu");
-    if (virStrToLong_ui(mtu_str, NULL, 10, &mtu) < 0) {
-+    if (!mtu_str || virStrToLong_ui(mtu_str, NULL, 10, &mtu) < 0) {
-         virReportError(VIR_ERR_INTERNAL_ERROR,
-                _("Could not parse MTU value '%1$s'"), mtu_str);
-+                _("Could not parse MTU value '%1$s'"), NULLSTR(mtu_str));
-         goto error;
-     }
-     ifacedef->mtu = mtu;
-@@ -1089,7 +1101,7 @@ udevInterfaceIsActive(virInterfacePtr ifinfo)
-        goto cleanup;
- 
-     /* Check if it's active or not */
-    status = STREQ(udev_device_get_sysattr_value(dev, "operstate"), "up");
-+    status = STREQ_NULLABLE(udev_device_get_sysattr_value(dev, "operstate"), "up");
- 
-     udev_device_unref(dev);
- 
-- 
-2.43.0
-
@@ -1,49 +0,0 @@
-From 98f1cf88fa7e0f992d93f376418fbfb3996a9690 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
-Date: Fri, 17 May 2024 14:55:24 +0100
-Subject: [PATCH] rpc: avoid leak of GSource in use for interrupting main loop
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-We never release the reference on the GSource created for
-interrupting the main loop, nor do we remove it from the
-main context if our thread is woken up prior to the wakeup
-callback firing.
-
-This can result in a leak of GSource objects, along with an
-ever growing list of GSources attached to the main context,
-which will gradually slow down execution of the loop, as
-several operations are O(N) for the number of attached GSource
-objects.
-
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
-Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
- src/rpc/virnetclient.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/src/rpc/virnetclient.c b/src/rpc/virnetclient.c
-index 147b0d661a..6d424eb599 100644
--- a/src/rpc/virnetclient.c
-+++ b/src/rpc/virnetclient.c
-@@ -1946,7 +1946,7 @@ static int virNetClientIO(virNetClient *client,
-     /* Check to see if another thread is dispatching */
-     if (client->haveTheBuck) {
-         /* Force other thread to wakeup from poll */
-        GSource *wakeup = g_idle_source_new();
-+        g_autoptr(GSource) wakeup = g_idle_source_new();
-         g_source_set_callback(wakeup, virNetClientIOWakeup, client->eventLoop, NULL);
-         g_source_attach(wakeup, client->eventCtx);
- 
-@@ -1968,6 +1968,7 @@ static int virNetClientIO(virNetClient *client,
-             return -1;
-         }
- 
-+        g_source_destroy(wakeup);
-         VIR_DEBUG("Woken up from sleep head=%p call=%p",
-                   client->waitDispatch, thiscall);
-         /* Three reasons we can be woken up
-- 
-2.45.1
-
@@ -1,99 +0,0 @@
-From 8074d64dc2eca846d6a61efe1a9b7428a0ce1dd1 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
-Date: Tue, 30 Apr 2024 11:51:15 +0100
-Subject: [PATCH] rpc: ensure temporary GSource is removed from client event
- loop
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Users are seeing periodic segfaults from libvirt client apps,
-especially thread heavy ones like virt-manager. A typical
-stack trace would end up in the virNetClientIOEventFD method,
-with illegal access to stale stack data. eg
-
-==238721==ERROR: AddressSanitizer: stack-use-after-return on address 0x75cd18709788 at pc 0x75cd3111f907 bp 0x75cd181ff550 sp 0x75cd181ff548
-WRITE of size 4 at 0x75cd18709788 thread T11
-    #0 0x75cd3111f906 in virNetClientIOEventFD /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:1634:15
-    #1 0x75cd3210d198  (/usr/lib/libglib-2.0.so.0+0x5a198) (BuildId: 0a2311dfbbc6c215dc36f4b6bdd2b4b6fbae55a2)
-    #2 0x75cd3216c3be  (/usr/lib/libglib-2.0.so.0+0xb93be) (BuildId: 0a2311dfbbc6c215dc36f4b6bdd2b4b6fbae55a2)
-    #3 0x75cd3210ddc6 in g_main_loop_run (/usr/lib/libglib-2.0.so.0+0x5adc6) (BuildId: 0a2311dfbbc6c215dc36f4b6bdd2b4b6fbae55a2)
-    #4 0x75cd3111a47c in virNetClientIOEventLoop /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:1722:9
-    #5 0x75cd3111a47c in virNetClientIO /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:2002:10
-    #6 0x75cd3111a47c in virNetClientSendInternal /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:2170:11
-    #7 0x75cd311198a8 in virNetClientSendWithReply /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:2198:11
-    #8 0x75cd31111653 in virNetClientProgramCall /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclientprogram.c:318:9
-    #9 0x75cd31241c8f in callFull /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/remote/remote_driver.c:6054:10
-    #10 0x75cd31241c8f in call /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/remote/remote_driver.c:6076:12
-    #11 0x75cd31241c8f in remoteNetworkGetXMLDesc /usr/src/debug/libvirt/libvirt-10.2.0/build/src/remote/remote_client_bodies.h:5959:9
-    #12 0x75cd31410ff7 in virNetworkGetXMLDesc /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/libvirt-network.c:952:15
-
-The root cause is a bad assumption in the virNetClientIOEventLoop
-method. This method is run by whichever thread currently owns the
-buck, and is responsible for handling I/O. Inside a for(;;) loop,
-this method creates a temporary GSource, adds it to the event loop
-and runs g_main_loop_run(). When I/O is ready, the GSource callback
-(virNetClientIOEventFD) will fire and call g_main_loop_quit(), and
-return G_SOURCE_REMOVE which results in the temporary GSource being
-destroyed. A g_autoptr() will then remove the last reference.
-
-What was overlooked, is that a second thread can come along and
-while it can't enter virNetClientIOEventLoop, it will register an
-idle source that uses virNetClientIOWakeup to interrupt the
-original thread's 'g_main_loop_run' call. When this happens the
-virNetClientIOEventFD callback never runs, and so the temporary
-GSource is not destroyed. The g_autoptr() will remove a reference,
-but by virtue of still being attached to the event context, there
-is an extra reference held causing GSource to be leaked. The
-next time 'g_main_loop_run' is called, the original GSource will
-trigger its callback, and access data that was allocated on the
-stack by the previous thread, and likely SEGV.
-
-To solve this, the thread calling 'g_main_loop_run' must call
-g_source_destroy, immediately upon return, to guarantee that
-the temporary GSource is removed.
-
-CVE-2024-4418
-Reviewed-by: Ján Tomko <jtomko@redhat.com>
-Reported-by: Martin Shirokov <shirokovmartin@gmail.com>
-Tested-by: Martin Shirokov <shirokovmartin@gmail.com>
-Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
- src/rpc/virnetclient.c | 14 +++++++++++++-
- 1 file changed, 13 insertions(+), 1 deletion(-)
-
-diff --git a/src/rpc/virnetclient.c b/src/rpc/virnetclient.c
-index 68098b1c8d..147b0d661a 100644
--- a/src/rpc/virnetclient.c
-+++ b/src/rpc/virnetclient.c
-@@ -1657,7 +1657,7 @@ static int virNetClientIOEventLoop(virNetClient *client,
- #endif /* !WIN32 */
-         int timeout = -1;
-         virNetMessage *msg = NULL;
-        g_autoptr(GSource) G_GNUC_UNUSED source = NULL;
-+        g_autoptr(GSource) source = NULL;
-         GIOCondition ev = 0;
-         struct virNetClientIOEventData data = {
-             .client = client,
-@@ -1721,6 +1721,18 @@ static int virNetClientIOEventLoop(virNetClient *client,
- 
-         g_main_loop_run(client->eventLoop);
- 
-+        /*
-+         * If virNetClientIOEventFD ran, this GSource will already be
-+         * destroyed due to G_SOURCE_REMOVE. It is harmless to re-destroy
-+         * it, since we still own a reference.
-+         *
-+         * If virNetClientIOWakeup ran, it will have interrupted the
-+         * g_main_loop_run call, before virNetClientIOEventFD could
-+         * run, and thus the GSource is still registered, and we need
-+         * to destroy it since it is referencing stack memory for 'data'
-+         */
-+        g_source_destroy(source);
-+
- #ifndef WIN32
-         ignore_value(pthread_sigmask(SIG_SETMASK, &oldmask, NULL));
- #endif /* !WIN32 */
-- 
-2.45.1
-
@@ -1,76 +0,0 @@
-From 7cb03e6a28e465c49f0cabe8fe2e7d21edb5aadf Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
-Date: Mon, 18 Dec 2023 12:17:18 +0000
-Subject: [PATCH] rpc: fix race in waking up client event loop
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The first thread to issue a client RPC request will own the event
-loop execution, sitting in the virNetClientIOEventLoop function.
-
-It releases the client lock while running:
-
-   virNetClientUnlock()
-   g_main_loop_run()
-   virNetClientLock()
-
-If a second thread arrives with an RPC request, it will queue it
-for the first thread to process. To inform the first thread that
-there's a new request it calls g_main_loop_quit() to break it out
-of the main loop.
-
-This works if the first thread is in g_main_loop_run() at that
-time. There is a small window of opportunity, however, where
-the first thread has released the client lock, but not yet got
-into g_main_loop_run(). If that happens, the wakeup from the
-second thread is lost.
-
-This patch deals with that by changing the way the wakeup is
-performed. Instead of directly calling g_main_loop_quit(), the
-second thread creates an idle source to run the quit function
-from within the first thread. This guarantees that the first
-thread will see the wakeup.
-
-Tested by: Fima Shevrin <efim.shevrin@virtuozzo.com>
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
-Reviewed-by: Denis V. Lunev <den@openvz.org>
-Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
- src/rpc/virnetclient.c | 13 ++++++++++++-
- 1 file changed, 12 insertions(+), 1 deletion(-)
-
-diff --git a/src/rpc/virnetclient.c b/src/rpc/virnetclient.c
-index 4ab8af68c5..68098b1c8d 100644
--- a/src/rpc/virnetclient.c
-+++ b/src/rpc/virnetclient.c
-@@ -1848,6 +1848,15 @@ static void virNetClientIOUpdateCallback(virNetClient *client,
- }
- 
- 
-+static gboolean virNetClientIOWakeup(gpointer opaque)
-+{
-+    GMainLoop *loop = opaque;
-+
-+    g_main_loop_quit(loop);
-+
-+    return G_SOURCE_REMOVE;
-+}
-+
- /*
-  * This function sends a message to remote server and awaits a reply
-  *
-@@ -1925,7 +1934,9 @@ static int virNetClientIO(virNetClient *client,
-     /* Check to see if another thread is dispatching */
-     if (client->haveTheBuck) {
-         /* Force other thread to wakeup from poll */
-        g_main_loop_quit(client->eventLoop);
-+        GSource *wakeup = g_idle_source_new();
-+        g_source_set_callback(wakeup, virNetClientIOWakeup, client->eventLoop, NULL);
-+        g_source_attach(wakeup, client->eventCtx);
- 
-         /* If we are non-blocking, detach the thread and keep the call in the
-          * queue. */
-- 
-2.43.0
-
@@ -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 \
@@ -0,0 +1,21 @@
+# Makefile for source rpm: libvirt
+# $Id$
+NAME := libvirt
+SPECFILE = $(firstword $(wildcard *.spec))
+
+define find-makefile-common
+for d in common ../common ../../common ; do if [ -f $$d/Makefile.common ] ; then if [ -f $$d/CVS/Root -a -w $$d/Makefile.common ] ; then cd $$d ; cvs -Q update ; fi ; echo "$$d/Makefile.common" ; break ; fi ; done
+endef
+
+MAKEFILE_COMMON := $(shell $(find-makefile-common))
+
+ifeq ($(MAKEFILE_COMMON),)
+# attempt a checkout
+define checkout-makefile-common
+test -f CVS/Root && { cvs -Q -d $$(cat CVS/Root) checkout common && echo "common/Makefile.common" ; } || { echo "ERROR: I can't figure out how to checkout the 'common' module." ; exit -1 ; } >&2
+endef
+
+MAKEFILE_COMMON := $(shell $(checkout-makefile-common))
+endif
+
+include $(MAKEFILE_COMMON)
@@ -1,31 +0,0 @@
-From c9056e682a8a67dc29e39eb01392fcf8ee978c31 Mon Sep 17 00:00:00 2001
-From: Jonathan Wright <jonathan@almalinux.org>
-Date: Wed, 3 Jan 2024 09:26:59 -0600
-Subject: [PATCH] conf: Restore setting default bus for input devices
-
-Prior to v9.3.0-rc1~30 we used to set default bus for <input/>
-devices, during XML parsing. In the commit this code was moved to
-a post parse callback. But somehow the line that sets the bus in
-one specific case disappeared. Bring it back.
-
-Resolves: https://gitlab.com/libvirt/libvirt/-/issues/577
-Fixes: c4bc4d3b82fbe22e03c986ca896090f481df5c10
-Signed-off-by: Jonathan Wright <jonathan@almalinux.org>
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
- src/conf/domain_postparse.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/src/conf/domain_postparse.c b/src/conf/domain_postparse.c
-index e79913b73f..ee27023f3e 100644
--- a/src/conf/domain_postparse.c
-+++ b/src/conf/domain_postparse.c
-@@ -657,6 +657,7 @@ virDomainInputDefPostParse(virDomainInputDef *input,
-             if ((input->type == VIR_DOMAIN_INPUT_TYPE_MOUSE ||
-                  input->type == VIR_DOMAIN_INPUT_TYPE_KBD) &&
-                 (ARCH_IS_X86(def->os.arch) || def->os.arch == VIR_ARCH_NONE)) {
-+                    input->bus = VIR_DOMAIN_INPUT_BUS_PS2;
-             } else if (ARCH_IS_S390(def->os.arch) ||
-                        input->type == VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH) {
-                 input->bus = VIR_DOMAIN_INPUT_BUS_VIRTIO;
-- 
@@ -1 +1 @@
-SHA512 (libvirt-9.7.0.tar.xz) = dd771822c0fa0861a32cab9d7f82235b101867fa0a4e8cf9a857ddfb2347e41b625b1e6f8791c4b3543fec836a1a23cae1fac4ce4b40debd51f2097bae46c949
+SHA512 (libvirt-3.2.1.tar.xz) = 4ec4faceedcad3a5419e91444b0c83adcbed0ff6482fb53c058a75412064de69e09fd096de4a30b8c1149da6ba03287b10e8af925b01d725e655658035e43d9a
Author	SHA1	Message	Date
Cole Robinson	54d3da1da5	CVE-2017-1000256: libvirt: TLS certificate verification disabled for clients (bz #1503687 )	2017-12-04 12:16:49 -05:00
Cole Robinson	faf5df2081	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)	2017-09-15 19:04:20 -04:00
Cole Robinson	e5075407b1	Enable ZFS storage driver (bz #1471912 ) Don't use cgroup mount points from /proc/mounts that are hidden (bz #1470593) disk driver name=... should be optional (bz #1473091)	2017-08-04 16:11:19 -04:00
Cole Robinson	8c3f1e830e	Fix resuming qemu VMs suspended before libvirt 3.2.0 Fix issues with AMD CPU models, and some others	2017-07-12 16:26:46 -04:00
Cole Robinson	58083f4418	Remove wireshark workaround	2017-06-14 10:47:37 -04:00
Cole Robinson	55a13fd521	Tweak condition for not starting in live environment (bz #1146232 )	2017-05-31 17:28:27 -04:00
Cole Robinson	262bbf08f2	Fix aarch64 gic default for non-kvm VMs (bz #1449837 ) Don't run libvirtd in live environment, to avoid network collision (bz #1146232)	2017-05-30 18:57:48 -04:00
Cole Robinson	0fe69a9b44	Rebased to version 3.2.1	2017-05-10 20:26:58 -04:00