[8/8] KVM: add debugfs file to show the number of async pf

Commit Message

Xiao Guangrong Oct. 27, 2010, 9:10 a.m. UTC

None

Patch

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c0e7ad0..2dd8059 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -88,6 +88,8 @@  static u64 __read_mostly efer_reserved_bits = 0xfffffffffffffffeULL;
 
 #define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
 #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
+#define VCPU_ASYNC_PF_STAT offsetof(struct kvm_vcpu, async_pf.queued), \
+							KVM_STAT_VCPU
 
 static void update_cr8_intercept(struct kvm_vcpu *vcpu);
 static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
@@ -141,6 +143,7 @@  struct kvm_stats_debugfs_item debugfs_entries[] = {
 	{ "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) },
 	{ "irq_injections", VCPU_STAT(irq_injections) },
 	{ "nmi_injections", VCPU_STAT(nmi_injections) },
+	{ "async_pf_queued", VCPU_ASYNC_PF_STAT},
 	{ "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) },
 	{ "mmu_pte_write", VM_STAT(mmu_pte_write) },
 	{ "mmu_pte_updated", VM_STAT(mmu_pte_updated) },