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| author | Avi Kivity <avi@qumranet.com> | 2008-09-01 14:57:51 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-10-15 10:15:25 +0200 |
| commit | fa89a81766e33343fa8f0fe0e371819bf94a17a1 (patch) | |
| tree | f6b1b9a1419313ebca9bbd608b6fd2c06168906b | |
| parent | KVM: MMU: Modify kvm_shadow_walk.entry to accept u64 addr (diff) | |
| download | linux-fa89a81766e33343fa8f0fe0e371819bf94a17a1.tar.xz linux-fa89a81766e33343fa8f0fe0e371819bf94a17a1.zip | |
KVM: Add statistics for guest irq injections
These can help show whether a guest is making progress or not.
Signed-off-by: Avi Kivity <avi@qumranet.com>
| -rw-r--r-- | arch/x86/kvm/svm.c | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 | ||||
| -rw-r--r-- | include/asm-x86/kvm_host.h | 1 |
4 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 60228888d1b5..9b54550fa4d2 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 71e57ae1cab7..e7e8c86f1b7d 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 e3b89662cf6d..3f3cb7107c03 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) }, diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index b6d26b80b75b..68a3ac13afce 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -413,6 +413,7 @@ struct kvm_vcpu_stat { u32 insn_emulation; u32 insn_emulation_fail; u32 hypercalls; + u32 irq_injections; }; struct descriptor_table { |