From 542423b0dd162a9dbf91109461703bd0e545c71f Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Thu, 27 Aug 2009 15:07:30 +0300 Subject: [PATCH] KVM: VMX: call vmx_load_host_state() only if msr is cached No need to call it before each kvm_(set|get)_msr_common() Signed-off-by: Gleb Natapov Signed-off-by: Marcelo Tosatti --- arch/x86/kvm/vmx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f482100eff87..cc6e00a9f724 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1007,9 +1007,9 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata) data = vmcs_readl(GUEST_SYSENTER_ESP); break; default: - vmx_load_host_state(to_vmx(vcpu)); msr = find_msr_entry(to_vmx(vcpu), msr_index); if (msr) { + vmx_load_host_state(to_vmx(vcpu)); data = msr->data; break; } @@ -1066,9 +1066,9 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data) } /* Otherwise falls through to kvm_set_msr_common */ default: - vmx_load_host_state(vmx); msr = find_msr_entry(vmx, msr_index); if (msr) { + vmx_load_host_state(vmx); msr->data = data; break; } -- 2.39.5