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kvm: fix 80000001.EDX supported bit filtering 

On AMD some bits from 1.EDX are reported in 80000001.EDX. The mask used
to copy bits from 1.EDX to 80000001.EDX is incorrect resulting in
unsupported features passed into a guest.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Gleb Natapov 2010-05-11 09:41:25 +03:00 committed by Marcelo Tosatti
parent 4513d9232b
commit c1667e4097
1 changed files with 1 additions and 1 deletions
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2
target-i386/kvm.c
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@ -111,7 +111,7 @@ uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function, int reg)
* so add missing bits according to the AMD spec:
*/
cpuid_1_edx = kvm_arch_get_supported_cpuid(env, 1, R_EDX);
ret |= cpuid_1_edx & 0xdfeff7ff;
ret |= cpuid_1_edx & 0x183f7ff;
break;
}
break;