From fa89a81766e33343fa8f0fe0e371819bf94a17a1 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 1 Sep 2008 15:57:51 +0300 Subject: KVM: Add statistics for guest irq injections These can help show whether a guest is making progress or not. Signed-off-by: Avi Kivity --- arch/x86/kvm/svm.c | 1 + arch/x86/kvm/vmx.c | 1 + arch/x86/kvm/x86.c | 1 + 3 files changed, 3 insertions(+) (limited to 'arch/x86/kvm') diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 60228888d1b..9b54550fa4d 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1519,6 +1519,7 @@ static inline void svm_inject_irq(struct vcpu_svm *svm, int irq) KVMTRACE_1D(INJ_VIRQ, &svm->vcpu, (u32)irq, handler); + ++svm->vcpu.stat.irq_injections; control = &svm->vmcb->control; control->int_vector = irq; control->int_ctl &= ~V_INTR_PRIO_MASK; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 71e57ae1cab..e7e8c86f1b7 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2341,6 +2341,7 @@ static void vmx_inject_irq(struct kvm_vcpu *vcpu, int irq) KVMTRACE_1D(INJ_VIRQ, vcpu, (u32)irq, handler); + ++vcpu->stat.irq_injections; if (vcpu->arch.rmode.active) { vmx->rmode.irq.pending = true; vmx->rmode.irq.vector = irq; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e3b89662cf6..3f3cb7107c0 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -92,6 +92,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { { "fpu_reload", VCPU_STAT(fpu_reload) }, { "insn_emulation", VCPU_STAT(insn_emulation) }, { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) }, + { "irq_injections", VCPU_STAT(irq_injections) }, { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) }, { "mmu_pte_write", VM_STAT(mmu_pte_write) }, { "mmu_pte_updated", VM_STAT(mmu_pte_updated) }, -- cgit v1.2.3