* [PATCH RESENT] fix 80000001.EDX supported bit filtering
@ 2010-05-11 14:15 Gleb Natapov
0 siblings, 0 replies; only message in thread
From: Gleb Natapov @ 2010-05-11 14:15 UTC (permalink / raw)
To: avi, mtosatti; +Cc: kvm
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>
----
Resent since Avi's email bounced first time.
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 76c1adb..6463390 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -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;
--
Gleb.
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