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docs: Document limitation of maximum vcpu count used with <topology>

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qemu requires that the topology equals to the maximum vcpu count.
Document this along with the API to set maximum vcpu count and the XML
element.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1426220
This commit is contained in:
Peter Krempa
2017-04-04 16:02:21 +02:00
parent 2e8c60958a
commit 4661a1868b
3 changed files with 8 additions and 3 deletions
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docs/formatdomain.html.in
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@@ -1401,7 +1401,10 @@
virtual CPU provided to the guest. Three non-zero values have to be
given for <code>sockets</code>, <code>cores</code>, and
<code>threads</code>: total number of CPU sockets, number of cores per
socket, and number of threads per core, respectively.</dd>
socket, and number of threads per core, respectively. Hypervisors may
require that the maximum number of vCPUs specified by the
<code>cpus</code> element equals to the number of vcpus resulting
from the topology.</dd>
<dt><code>feature</code></dt>
<dd>The <code>cpu</code> element can contain zero or more