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

[Jiri Denemark]

On Fri, Jun 17, 2016 at 09:23:56 +0800, Qiaowei Ren wrote:
> 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 at intel.com>
> ---
>  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>

This hunk won't apply since about a week ago. Please, use current git
when sending patches.

> @@ -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>
> +

And keep the list of features sorted by CPUID level, i.e., these
features should go after 0x0d and before 0x80000000.

Jirka