From: Paolo Bonzini Date: Mon, 1 Jan 2018 21:53:42 +0000 (+0100) Subject: KVM: nVMX: remove unnecessary vmwrite from L2->L1 vmexit X-Git-Tag: v4.19~1589^2~16 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=07f36616cde482a9fd65da9a64f504190c7a0edb;p=platform%2Fkernel%2Flinux-rpi.git 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 Signed-off-by: Radim Krčmář --- diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 9b9e02c..bbadd8c 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);