libvirt/docs
Tim Wiederhake 3fc4412c6f qemu: support kvm-poll-control performance hint
QEMU version 4.2 introduced a performance feature under commit
d645e13287 ("kvm: i386: halt poll control MSR support").

This patch adds a new KVM feature 'poll-control' to set this performance
hint for KVM guests. The feature is off by default.

To enable this hint and have libvirt add "-cpu host,kvm-poll-control=on"
to the QEMU command line, the following XML code needs to be added to the
guest's domain description:

  <features>
    <kvm>
      <poll-control state='on'/>
    </kvm>
  </features>

Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-17 14:40:46 +01:00
..
fonts meson: add rule to build and install only web documentation 2020-08-03 09:27:06 +02:00
gitdm gitdm: add more individual contributors 2020-09-25 16:00:06 +02:00
html meson: add rule to build and install only web documentation 2020-08-03 09:27:06 +02:00
internals docs/internals/meson.build: Use template code for XSLT processing 2020-10-19 12:40:51 +02:00
js meson: add rule to build and install only web documentation 2020-08-03 09:27:06 +02:00
kbase docs: kbase: Reorder some articles in the 'Usage' section 2020-11-16 14:04:04 +01:00
logos docs: fix misc spelling errors reported by codespell 2020-10-05 10:28:37 +01:00
manpages meson: drop use of .path() for python args 2020-11-09 16:32:55 +00:00
schemas qemu: support kvm-poll-control performance hint 2020-11-17 14:40:46 +01:00
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formatcaps.html.in conf: add support for specifying CPU "dies" parameter 2020-01-16 15:11:42 +00:00
formatcheckpoint.rst checkpoint: Mention that VIR_DOMAIN_CHECKPOINT_XML_SIZE is expensive and stale 2020-07-07 12:58:19 +02:00
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formatnwfilter.html.in doc: document new filters and not documented ones 2020-11-04 17:21:45 +01:00
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migration.html.in migration.html: Fix the spelling of the --persistent parameter 2020-11-13 15:58:52 +01:00
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