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Commit fa89a817 authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: Add statistics for guest irq injections 



These can help show whether a guest is making progress or not.

Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent d40a1ee4

arch/x86/kvm/svm.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

arch/x86/kvm/vmx.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

arch/x86/kvm/x86.c

+1 −0
Original line number Diff line number Diff line
@@ -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) },

include/asm-x86/kvm_host.h

+1 −0
Original line number Diff line number Diff line
@@ -413,6 +413,7 @@ struct kvm_vcpu_stat { 
	u32 insn_emulation;

	u32 insn_emulation_fail;

	u32 hypercalls;

	u32 irq_injections;

};



struct descriptor_table {