KVM: nVMX: remove unnecessary vmwrite from L2->L1 vmexit

The POSTED_INTR_NV field is constant (though it differs between the vmcs01 and
vmcs02), there is no need to reload it on vmexit to L1.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9b9e02c0f25e2802121b896680133bc615d54784..bbadd8c7e59229bd537a0de01246a232432c1ad2 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -11339,9 +11339,6 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
                 */
                vmx_flush_tlb(vcpu, true);
        }
-       /* Restore posted intr vector. */
-       if (nested_cpu_has_posted_intr(vmcs12))
-               vmcs_write16(POSTED_INTR_NV, POSTED_INTR_VECTOR);
 
        vmcs_write32(GUEST_SYSENTER_CS, vmcs12->host_ia32_sysenter_cs);
        vmcs_writel(GUEST_SYSENTER_ESP, vmcs12->host_ia32_sysenter_esp);