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KVM: MMU: trace mmio page fault

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Add tracepoints to trace mmio page fault

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Xiao Guangrong
2011-07-12 03:34:24 +08:00
committed by Avi Kivity
parent ce88decffd
commit 4f0226482d
4 changed files with 80 additions and 1 deletions
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5
arch/x86/kvm/x86.c
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@ -4021,6 +4021,7 @@ static int vcpu_mmio_gva_to_gpa(struct kvm_vcpu *vcpu, unsigned long gva,
vcpu->arch.access)) {
*gpa = vcpu->arch.mmio_gfn << PAGE_SHIFT |
(gva & (PAGE_SIZE - 1));
trace_vcpu_match_mmio(gva, *gpa, write, false);
return 1;
}
@ -4036,8 +4037,10 @@ static int vcpu_mmio_gva_to_gpa(struct kvm_vcpu *vcpu, unsigned long gva,
if ((*gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
return 1;
if (vcpu_match_mmio_gpa(vcpu, *gpa))
if (vcpu_match_mmio_gpa(vcpu, *gpa)) {
trace_vcpu_match_mmio(gva, *gpa, write, true);
return 1;
}
return 0;
}