1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 106f9f1f78c0..ce677b20bf86 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -185,11 +185,11 @@ static void kvm_shared_msr_cpu_online(void)
                 locals->current_value[i] = shared_msrs_global.msrs[i].value;
 }
 
-void kvm_set_shared_msr(unsigned slot, u64 value)
+void kvm_set_shared_msr(unsigned slot, u64 value, u64 mask)
 {
         struct kvm_shared_msrs *smsr = &__get_cpu_var(shared_msrs);
 
-        if (value == smsr->current_value[slot])
+        if (((value ^ smsr->current_value[slot]) & mask) == 0)
                 return;
         smsr->current_value[slot] = value;
         wrmsrl(shared_msrs_global.msrs[slot].msr, value);