[libvirt] [PATCH 1/2] cpu_map: Add TAA_NO bit for IA32_ARCH_CAPABILITIES MSR
CVE-2019-11135
CPUs with TAA_NO bit of IA32_ARCH_CAPABILITIES MSR set to 1 are not
vulnerable to TSX Asynchronous Abort and passing this bit to a guest
may avoid unnecessary mitigations.
Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
---
src/cpu_map/x86_features.xml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/cpu_map/x86_features.xml b/src/cpu_map/x86_features.xml
index 2bed1e0372..d1180ed26d 100644
--- a/src/cpu_map/x86_features.xml
+++ b/src/cpu_map/x86_features.xml
@@ -502,4 +502,7 @@
<feature name='mds-no'>
<msr index='0x10a' edx='0x00000000' eax='0x00000020'/>
</feature>
+ <feature name='taa-no'>
+ <msr index='0x10a' edx='0x00000000' eax='0x00000100'/>
+ </feature>
</cpus>
--
2.24.1