glibc blacklists TSX on Haswell CPUs with model==60 and
stepping < 4. To make the Haswell CPU model more useful, make
those guests actually use TSX by changing CPU stepping to 4.
References:
* glibc commit
2702856bf45c82cf8e69f2064f5aa15c0ceb6359
https://sourceware.org/git/?p=glibc.git;a=commit;h=
2702856bf45c82cf8e69f2064f5aa15c0ceb6359
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
20170309181212.18864-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
.driver = TYPE_X86_CPU,\
.property = "vmware-cpuid-freq",\
.value = "off",\
+ },\
+ {\
+ .driver = "Haswell-" TYPE_X86_CPU,\
+ .property = "stepping",\
+ .value = "1",\
},
#define PC_COMPAT_2_7 \
.vendor = CPUID_VENDOR_INTEL,
.family = 6,
.model = 60,
- .stepping = 1,
+ .stepping = 4,
.features[FEAT_1_EDX] =
CPUID_VME | CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |