[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [libvirt] [v5][PATCH 4/4] docs: Add documentation for compat mode.



On 31.10.2014 10:54, Prerna Saxena wrote:

From dd917ef27269bc3a9af2294212b088f838792315 Mon Sep 17 00:00:00 2001
From: Prerna Saxena <prerna linux vnet ibm com>
Date: Fri, 31 Oct 2014 15:13:16 +0530
Subject: [PATCH 4/4] docs: Add documentation for compat mode.

Add documentation to explain how compat-mode can be invoked with libvirt
running on PowerPC architecture.

Signed-off-by: Prerna Saxena <prerna linux vnet ibm com>
---
  docs/formatdomain.html.in | 15 ++++++++++++++-
  1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 0099ce7..ded9b90 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -1047,7 +1047,20 @@
            (such as CPUID level) that don't work. Until these issues are fixed,
            it's a good idea to avoid using <code>host-model</code> and use
            <code>custom</code> mode with just the CPU model from host
-          capabilities XML.</dd>
+          capabilities XML.
+          <span class="since">(Since 1.2.10)</span>.PowerISA allows

s/\./. /

+          processors to run VMs in binary compatibility mode supporting an
+          older version of ISA.  Libvirt on PowerPC architecture uses the
+          <code>host-model</code> to signify a guest mode CPU running in
+          binary compatibility mode. Example:
+          When a user needs a power7 VM to run in compatibility mode
+          on a Power8 host, this can be described in XML as follows :
+<pre>
+  &lt;cpu mode='host-model'&gt;
+    &lt;model&gt;power7&lt;/model&gt;
+  &lt;/cpu&gt;
+  ...</pre>
+          </dd>
            <dt><code>host-passthrough</code></dt>
            <dd>With this mode, the CPU visible to the guest should be exactly
            the same as the host CPU even in the aspects that libvirt does not


Michal


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]