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    virCaps: expose pages info · 02129b7c
    Michal Privoznik 提交于
    There are two places where you'll find info on page sizes. The first
    one is under <cpu/> element, where all supported pages sizes are
    listed. Then the second one is under each <cell/> element which refers
    to concrete NUMA node. At this place, the size of page's pool is
    reported. So the capabilities XML looks something like this:
    
    <capabilities>
    
      <host>
        <uuid>01281cda-f352-cb11-a9db-e905fe22010c</uuid>
        <cpu>
          <arch>x86_64</arch>
          <model>Westmere</model>
          <vendor>Intel</vendor>
          <topology sockets='1' cores='1' threads='1'/>
          ...
          <pages unit='KiB' size='4'/>
          <pages unit='KiB' size='2048'/>
          <pages unit='KiB' size='1048576'/>
        </cpu>
        ...
        <topology>
          <cells num='4'>
            <cell id='0'>
              <memory unit='KiB'>4054408</memory>
              <pages unit='KiB' size='4'>1013602</pages>
              <pages unit='KiB' size='2048'>3</pages>
              <pages unit='KiB' size='1048576'>1</pages>
              <distances/>
              <cpus num='1'>
                <cpu id='0' socket_id='0' core_id='0' siblings='0'/>
              </cpus>
            </cell>
            <cell id='1'>
              <memory unit='KiB'>4071072</memory>
              <pages unit='KiB' size='4'>1017768</pages>
              <pages unit='KiB' size='2048'>3</pages>
              <pages unit='KiB' size='1048576'>1</pages>
              <distances/>
              <cpus num='1'>
                <cpu id='1' socket_id='0' core_id='0' siblings='1'/>
              </cpus>
            </cell>
            ...
          </cells>
        </topology>
        ...
      </host>
    
      <guest/>
    
    </capabilities>
    Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
    02129b7c
nodeinfo.c 54.1 KB