Re: [libvirt] [PATCH 1/1] cpu_map.xml: add cmt/mbm feature to x86

Some Intel processor families (e.g. the Intel Xeon processor E5 v3 family) introduced some PQos (Platform Qos) features, including CMT (Cache Monitoring echnology) and MBM (Memory Bandwidth Monitoring), to monitor or control shared resource. This patch add them into x86 part of cpu_map.xml to be used for applications (like OpenStack) based on libvirt to get cpu capabilities. Signed-off-by: Qiaowei Ren <qiaowei.ren(a)intel.com&gt; --- src/cpu/cpu_map.xml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/cpu/cpu_map.xml b/src/cpu/cpu_map.xml index 08aded2..2e2cb4f 100644 --- a/src/cpu/cpu_map.xml +++ b/src/cpu/cpu_map.xml @@ -320,6 +320,9 @@ <feature name='rtm'> <cpuid function='0x00000007' ebx='0x00000800'/> </feature> + <feature name='cmt'> + <cpuid function='0x00000007' ebx='0x00001000'/> + </feature> <feature name='mpx'> <cpuid function='0x00000007' ebx='0x00004000'/> </feature>

@@ -353,6 +356,14 @@ <cpuid function='0x80000007' edx='0x00000100'/> </feature> + <!-- cpuid level 0x0000000f:1 (edx) --> + <feature name='mbm_total'> <!-- LLC Total MBM monitoring --> + <cpuid function='0x0000000f' edx='0x00000002'/> + </feature> + <feature name='mbm_local'> <!-- LLC Local MBM monitoring --> + <cpuid function='0x0000000f' edx='0x00000004'/> + </feature> +