Cole Robinson
d617f580c5
Fix getVersion() after installing qemu (bz #1000116) Fix autosocket setup with qemu:///session (bz #1044561, bz #1105274) Ignore storage volumes with non-ascii in names (bz #1066564) Don't generate invalid system nodedev XML (bz #1184131) Fix vhost-user XML (bz #1190842) Fix crash via race when unrefing rpc identity object (bz #1203030) Fix domcapabilities failure with ppc64le (bz #1209948) Fix snapshot-revert with cpu host-passthrough (bz #1030793) Fix starting VM with emulator pinning (bz #1214434) Fix virDomainBlockCopyRebase selinux failure (bz #1214846) Add {Haswell,Broadwell}-noTSX CPU models (bz #1182650) Report original error when QMP probing fails (bz #1178054) Don't lose VMs on libvirtd restart if qemu is uninstalled (bz #1099847) Ignore storage volumes that libvirt can't open (bz #1103308)
42 lines
1.8 KiB
Diff
42 lines
1.8 KiB
Diff
From: Prerna Saxena <prerna@linux.vnet.ibm.com>
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Date: Tue, 4 Nov 2014 23:00:36 +0530
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Subject: [PATCH] docs: Add documentation for compat mode.
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Add documentation to explain how compat-mode can be invoked with libvirt
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running on PowerPC architecture.
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It also mentions that this change is available libvirt 1.2.11 onwards.
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Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
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Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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(cherry picked from commit 9265fd19b68d787e478f5e490524da794965a5f1)
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---
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docs/formatdomain.html.in | 15 ++++++++++++++-
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1 file changed, 14 insertions(+), 1 deletion(-)
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diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
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index 12172a4..6c64230 100644
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--- a/docs/formatdomain.html.in
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+++ b/docs/formatdomain.html.in
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@@ -1047,7 +1047,20 @@
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(such as CPUID level) that don't work. Until these issues are fixed,
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it's a good idea to avoid using <code>host-model</code> and use
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<code>custom</code> mode with just the CPU model from host
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- capabilities XML.</dd>
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+ capabilities XML.
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+ <span class="since">(Since 1.2.11)</span>. PowerISA allows
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+ processors to run VMs in binary compatibility mode supporting an
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+ older version of ISA. Libvirt on PowerPC architecture uses the
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+ <code>host-model</code> to signify a guest mode CPU running in
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+ binary compatibility mode. Example:
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+ When a user needs a power7 VM to run in compatibility mode
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+ on a Power8 host, this can be described in XML as follows :
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+<pre>
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+ <cpu mode='host-model'>
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+ <model>power7</model>
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+ </cpu>
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+ ...</pre>
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+ </dd>
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<dt><code>host-passthrough</code></dt>
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<dd>With this mode, the CPU visible to the guest should be exactly
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the same as the host CPU even in the aspects that libvirt does not
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