[PATCH] cpu: add CLZERO CPUID support for AMD platforms

[Ani Sinha <ani.sinha@xxxxxxxxxxx>]

Qemu commit e900135dcfb67 ("i386: Add CPUID bit for CLZERO and XSAVEERPTR")
adds support for CLZERO CPUID bit.
This commit extends support for this CPUID bit into libvirt.

Signed-off-by: Ani Sinha <ani.sinha@xxxxxxxxxxx>
---
 src/cpu_map/x86_EPYC-IBPB.xml | 1 +
 src/cpu_map/x86_EPYC.xml      | 1 +
 src/cpu_map/x86_features.xml  | 3 +++
 3 files changed, 5 insertions(+)

diff --git a/src/cpu_map/x86_EPYC-IBPB.xml b/src/cpu_map/x86_EPYC-IBPB.xml
index 283697e..a70fbd8 100644
--- a/src/cpu_map/x86_EPYC-IBPB.xml
+++ b/src/cpu_map/x86_EPYC-IBPB.xml
@@ -14,6 +14,7 @@
     <feature name='bmi2'/>
     <feature name='clflush'/>
     <feature name='clflushopt'/>
+    <feature name='clzero'/>
     <feature name='cmov'/>
     <feature name='cr8legacy'/>
     <feature name='cx16'/>
diff --git a/src/cpu_map/x86_EPYC.xml b/src/cpu_map/x86_EPYC.xml
index f060139..6c11d82 100644
--- a/src/cpu_map/x86_EPYC.xml
+++ b/src/cpu_map/x86_EPYC.xml
@@ -14,6 +14,7 @@
     <feature name='bmi2'/>
     <feature name='clflush'/>
     <feature name='clflushopt'/>
+    <feature name='clzero'/>
     <feature name='cmov'/>
     <feature name='cr8legacy'/>
     <feature name='cx16'/>
diff --git a/src/cpu_map/x86_features.xml b/src/cpu_map/x86_features.xml
index 2bed1e0..dd62755 100644
--- a/src/cpu_map/x86_features.xml
+++ b/src/cpu_map/x86_features.xml
@@ -473,6 +473,9 @@
   <feature name='ibpb'>
     <cpuid eax_in='0x80000008' ebx='0x00001000'/>
   </feature>
+  <feature name='clzero'>
+    <cpuid eax_in='0x80000008' ebx='0x00000001'/>
+  </feature>
   <feature name='amd-ssbd'>
     <cpuid eax_in='0x80000008' ebx='0x01000000'/>
   </feature>
-- 
1.9.4


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