[libvirt] [PATCH] "pclmuldq" was introduced with Westmere, not Sandy Bridge. This feature is important to get proper performance for aes-128-gcm in openssl, an important cipher for https communication.

Jan-Frode Myklebust janfrode at tanso.net
Tue Oct 7 19:22:12 UTC 2014


Signed-off-by: Jan-Frode Myklebust <janfrode at tanso.net>
---
 src/cpu/cpu_map.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/cpu/cpu_map.xml b/src/cpu/cpu_map.xml
index 18c7b0d..94f1458 100644
--- a/src/cpu/cpu_map.xml
+++ b/src/cpu/cpu_map.xml
@@ -488,11 +488,11 @@
     <model name='Westmere'>
       <model name='Nehalem'/>
       <feature name='aes'/>
+      <feature name='pclmuldq'/>
     </model>
 
     <model name='SandyBridge'>
       <model name='Westmere'/>
-      <feature name='pclmuldq'/>
       <feature name='x2apic'/>
       <feature name='tsc-deadline'/>
       <feature name='xsave'/>
-- 
1.7.1




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