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Subject[PATCH 02/35] KVM: Add stat counter for hypercalls
Date
From: Amit Shah <amit.shah@qumranet.com>

Signed-off-by: Amit Shah <amit.shah@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
arch/x86/kvm/x86.c | 2 ++
include/asm-x86/kvm_host.h | 1 +
2 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a063f44..15bba5d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -72,6 +72,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "irq_window", VCPU_STAT(irq_window_exits) },
{ "halt_exits", VCPU_STAT(halt_exits) },
{ "halt_wakeup", VCPU_STAT(halt_wakeup) },
+ { "hypercalls", VCPU_STAT(hypercalls) },
{ "request_irq", VCPU_STAT(request_irq_exits) },
{ "irq_exits", VCPU_STAT(irq_exits) },
{ "host_state_reload", VCPU_STAT(host_state_reload) },
@@ -2405,6 +2406,7 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
}
vcpu->arch.regs[VCPU_REGS_RAX] = ret;
kvm_x86_ops->decache_regs(vcpu);
+ ++vcpu->stat.hypercalls;
return 0;
}
EXPORT_SYMBOL_GPL(kvm_emulate_hypercall);
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 0c429c8..4f5a71a 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -327,6 +327,7 @@ struct kvm_vcpu_stat {
u32 fpu_reload;
u32 insn_emulation;
u32 insn_emulation_fail;
+ u32 hypercalls;
};

struct descriptor_table {
--
1.5.4.5


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