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>

diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 676aa60791f0ba8a689354882f511147e5a9ec13..d6b12edab7f2c555c951cdda8b7c1e99a72d5808 100644 (file)
--- 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;