From 20f65983e30f222e5383f77206e3f571d1d64610 Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Mon, 11 May 2009 13:35:55 +0300 Subject: [PATCH] KVM: Move "exit due to NMI" handling into vmx_complete_interrupts() To save us one reading of VM_EXIT_INTR_INFO. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 29b49f09a019..fe2ce2b40504 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3261,8 +3261,17 @@ static void vmx_complete_interrupts(struct vcpu_vmx *vmx) int type; bool idtv_info_valid; - idtv_info_valid = idt_vectoring_info & VECTORING_INFO_VALID_MASK; exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO); + + /* We need to handle NMIs before interrupts are enabled */ + if ((exit_intr_info & INTR_INFO_INTR_TYPE_MASK) == INTR_TYPE_NMI_INTR && + (exit_intr_info & INTR_INFO_VALID_MASK)) { + KVMTRACE_0D(NMI, &vmx->vcpu, handler); + asm("int $2"); + } + + idtv_info_valid = idt_vectoring_info & VECTORING_INFO_VALID_MASK; + if (cpu_has_virtual_nmis()) { unblock_nmi = (exit_intr_info & INTR_INFO_UNBLOCK_NMI) != 0; vector = exit_intr_info & INTR_INFO_VECTOR_MASK; @@ -3363,7 +3372,6 @@ static void fixup_rmode_irq(struct vcpu_vmx *vmx) static void vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) { struct vcpu_vmx *vmx = to_vmx(vcpu); - u32 intr_info; /* Record the guest's net vcpu time for enforced NMI injections. */ if (unlikely(!cpu_has_virtual_nmis() && vmx->soft_vnmi_blocked)) @@ -3490,15 +3498,6 @@ static void vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS)); vmx->launched = 1; - intr_info = vmcs_read32(VM_EXIT_INTR_INFO); - - /* We need to handle NMIs before interrupts are enabled */ - if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == INTR_TYPE_NMI_INTR && - (intr_info & INTR_INFO_VALID_MASK)) { - KVMTRACE_0D(NMI, vcpu, handler); - asm("int $2"); - } - vmx_complete_interrupts(vmx); } -- 2.20.1