diff options
| author | Eduardo Habkost <ehabkost@redhat.com> | 2015-03-13 15:39:43 -0300 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2015-03-19 16:35:14 -0300 |
| commit | 1ee9159882f6687d6bc1f2207e97ada1eeccaa7c (patch) | |
| tree | 32ba4168a5beda9a267e78ac3168d5cae3b33564 /target-i386 | |
| parent | 3e5f6234b4f45a11b7c357dde2d6da36641bc6f6 (diff) | |
Revert "target-i386: Disable HLE and RTM on Haswell & Broadwell"
This reverts commit 13704e4c455770d500d6b87b117e32f0d01252c9.
With the Intel microcode update that removed HLE and RTM, there will be
different kinds of Haswell and Broadwell CPUs out there: some that still
have the HLE and RTM features, and some that don't have the HLE and RTM
features. On both cases people may be willing to use the pc-*-2.3
machine-types.
So instead of making the CPU model results confusing by making it depend
on the machine-type, keep HLE and RTM on the existing Haswell and
Broadwell CPU models. The plan is to introduce "Haswell-noTSX" and
"Broadwell-noTSX" CPU models later, for people who have CPUs that don't
have TSX feature available.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/cpu.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c index f01690bfea..02def075df 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -1099,8 +1099,9 @@ static X86CPUDefinition builtin_x86_defs[] = { CPUID_EXT3_LAHF_LM, .features[FEAT_7_0_EBX] = CPUID_7_0_EBX_FSGSBASE | CPUID_7_0_EBX_BMI1 | - CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_SMEP | - CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_INVPCID, + CPUID_7_0_EBX_HLE | CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_SMEP | + CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_INVPCID | + CPUID_7_0_EBX_RTM, .features[FEAT_XSAVE] = CPUID_XSAVE_XSAVEOPT, .xlevel = 0x8000000A, @@ -1133,9 +1134,9 @@ static X86CPUDefinition builtin_x86_defs[] = { CPUID_EXT3_LAHF_LM | CPUID_EXT3_3DNOWPREFETCH, .features[FEAT_7_0_EBX] = CPUID_7_0_EBX_FSGSBASE | CPUID_7_0_EBX_BMI1 | - CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_SMEP | + CPUID_7_0_EBX_HLE | CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_INVPCID | - CPUID_7_0_EBX_RDSEED | CPUID_7_0_EBX_ADX | + CPUID_7_0_EBX_RTM | CPUID_7_0_EBX_RDSEED | CPUID_7_0_EBX_ADX | CPUID_7_0_EBX_SMAP, .features[FEAT_XSAVE] = CPUID_XSAVE_XSAVEOPT, |