aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorAvi Kivity <avi@qumranet.com>2008-09-01 15:57:51 +0300
committerAvi Kivity <avi@qumranet.com>2008-10-15 10:15:25 +0200
commitfa89a81766e33343fa8f0fe0e371819bf94a17a1 (patch)
treef6b1b9a1419313ebca9bbd608b6fd2c06168906b
parentd40a1ee4859c673677c9811ae84475c4051baca5 (diff)
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.c1
-rw-r--r--arch/x86/kvm/vmx.c1
-rw-r--r--arch/x86/kvm/x86.c1
-rw-r--r--include/asm-x86/kvm_host.h1
4 files changed, 4 insertions, 0 deletions
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) },
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index b6d26b80b75..68a3ac13afc 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 {