diff mbox series

[1/2] target/i386: define md-clear bit

Message ID 20190515141011.5315-2-berrange@redhat.com (mailing list archive)
State New, archived
Headers show
Series x86/cpu: add "md-clear" feature for MDS security flaws | expand

Commit Message

Daniel P. Berrangé May 15, 2019, 2:10 p.m. UTC 
From: Paolo Bonzini <pbonzini@redhat.com>

md-clear is a new CPUID bit which is set when microcode provides the
mechanism to invoke a flush of various exploitable CPU buffers by invoking
the VERW instruction.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 722c5514d4..4fa67bcfaf 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1077,7 +1077,7 @@  static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
         .feat_names = {
             NULL, NULL, "avx512-4vnniw", "avx512-4fmaps",
             NULL, NULL, NULL, NULL,
-            NULL, NULL, NULL, NULL,
+            NULL, NULL, "md-clear", NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,