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authorPaolo Bonzini <pbonzini@redhat.com>2016-06-17 17:47:13 +0200
committerEduardo Habkost <ehabkost@redhat.com>2016-07-07 15:24:59 -0300
commit7eb24386dbfb0b66464c7f856c1074c606efccda (patch)
tree86d1471d205a480252c3a5a79dcdaea7d318fe40
parentfb02d56e96d553088c5b4267a3c954a3e952a50a (diff)
target-i386: TCG can support CPUID.07H:EBX.erms
ERMS just says "rep movsb" and "rep stosb" are fast. It does not imply any new instruction, so we can support it easily. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
-rw-r--r--target-i386/cpu.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 3bd3cfc3ad..2227f2281c 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -358,10 +358,11 @@ static const char *cpuid_6_feature_name[] = {
#define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX | \
CPUID_7_0_EBX_PCOMMIT | CPUID_7_0_EBX_CLFLUSHOPT | \
- CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE)
+ CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE | \
+ CPUID_7_0_EBX_ERMS)
/* missing:
CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2,
- CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
+ CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
CPUID_7_0_EBX_RDSEED */
#define TCG_7_0_ECX_FEATURES (CPUID_7_0_ECX_PKU | CPUID_7_0_ECX_OSPKE)
#define TCG_APM_FEATURES 0