KVM: Don't save/restore MSR_IA32_PERF_STATUS
authorAvi Kivity <avi@redhat.com>
Wed, 1 Sep 2010 07:23:35 +0000 (10:23 +0300)
committerAvi Kivity <avi@redhat.com>
Sun, 24 Oct 2010 08:51:51 +0000 (10:51 +0200)
It is read/only; restoring it only results in annoying messages.

Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/x86.c

index d0ba857cd7cf1a3d8541888dc36e46e0917cc605..1c972382e5d43435b4417abefc1fb4e3c1524756 100644 (file)
@@ -739,7 +739,7 @@ static u32 msrs_to_save[] = {
 #ifdef CONFIG_X86_64
        MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
 #endif
-       MSR_IA32_TSC, MSR_IA32_PERF_STATUS, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA
+       MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA
 };
 
 static unsigned num_msrs_to_save;