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

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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>
This commit is contained in:
Paolo Bonzini 2018-01-01 22:53:42 +01:00 committed by Radim Krčmář
parent 25a2e4fe8e
commit 07f36616cd
1 changed files with 0 additions and 3 deletions
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arch/x86/kvm/vmx.c
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@ -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);