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| author | Eduardo Habkost | 2017-03-09 19:12:12 +0100 |
|---|---|---|
| committer | Eduardo Habkost | 2017-03-10 19:01:09 +0100 |
| commit | ec56a4a7b07e2943f49da273a31e3195083b1f2e (patch) | |
| tree | b5a466451b05e13429e613d9c8e75507e8d318d7 /target | |
| parent | i386/kvm: Blacklist TSX on known broken hosts (diff) | |
| download | qemu-ec56a4a7b07e2943f49da273a31e3195083b1f2e.tar.gz qemu-ec56a4a7b07e2943f49da273a31e3195083b1f2e.tar.xz qemu-ec56a4a7b07e2943f49da273a31e3195083b1f2e.zip | |
i386: Change stepping of Haswell to non-blacklisted value
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>
Diffstat (limited to 'target')
| -rw-r--r-- | target/i386/cpu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 30ba1bd06b..7aa762245a 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1196,7 +1196,7 @@ static X86CPUDefinition builtin_x86_defs[] = { .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 | |