From 07f36616cde482a9fd65da9a64f504190c7a0edb Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 1 Jan 2018 22:53:42 +0100 Subject: [PATCH] KVM: nVMX: remove unnecessary vmwrite from L2->L1 vmexit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Radim Krčmář --- arch/x86/kvm/vmx.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 9b9e02c0f25e..bbadd8c7e592 100644 --- 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); -- GitLab