[PULL 21/22] KVM: SVM: always set MSR_AMD64_TSC_RATIO to default value

Paolo Bonzini posted 22 patches 3 years, 9 months ago
There is a newer version of this series
[PULL 21/22] KVM: SVM: always set MSR_AMD64_TSC_RATIO to default value
Posted by Paolo Bonzini 3 years, 9 months ago
From: Maxim Levitsky <mlevitsk@redhat.com>

Even when the feature is not supported in guest CPUID,
still set the msr to the default value which will
be the only value KVM will accept in this case

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220223115824.319821-1-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/cpu.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 916d3354fe..a88d6554c8 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -5997,9 +5997,7 @@ static void x86_cpu_reset(DeviceState *dev)
 
     x86_cpu_set_sgxlepubkeyhash(env);
 
-    if (env->features[FEAT_SVM] & CPUID_SVM_TSCSCALE) {
-        env->amd_tsc_scale_msr =  MSR_AMD64_TSC_RATIO_DEFAULT;
-    }
+    env->amd_tsc_scale_msr =  MSR_AMD64_TSC_RATIO_DEFAULT;
 
 #endif
 }
-- 
2.35.1