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| author | Peter Maydell <peter.maydell@linaro.org> | 2017-03-13 13:16:35 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2017-03-13 13:16:35 +0000 |
| commit | f962709c69a05183bf314d3d8c69802d1e3f139c (patch) | |
| tree | 2a121ac278ccbed5e2624b282572fa0377bf8f94 /target/i386/cpu.c | |
| parent | b1616fe0e2a311f5951cc51800a17a920b20a129 (diff) | |
| parent | ec56a4a7b07e2943f49da273a31e3195083b1f2e (diff) | |
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
x86: Haswell TSX blacklist fix for 2.9
# gpg: Signature made Fri 10 Mar 2017 18:45:08 GMT
# gpg: using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/x86-pull-request:
i386: Change stepping of Haswell to non-blacklisted value
i386/kvm: Blacklist TSX on known broken hosts
i386: host_vendor_fms() helper function
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/i386/cpu.c')
| -rw-r--r-- | target/i386/cpu.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index fba92125ab..7aa762245a 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -688,6 +688,25 @@ void host_cpuid(uint32_t function, uint32_t count, *edx = vec[3]; } +void host_vendor_fms(char *vendor, int *family, int *model, int *stepping) +{ + uint32_t eax, ebx, ecx, edx; + + host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx); + x86_cpu_vendor_words2str(vendor, ebx, edx, ecx); + + host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx); + if (family) { + *family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF); + } + if (model) { + *model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12); + } + if (stepping) { + *stepping = eax & 0x0F; + } +} + /* CPU class name definitions: */ #define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU @@ -1177,7 +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 | |