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authorAvi Kivity <avi@redhat.com>2010-01-25 18:47:02 +0100
committerMarcelo Tosatti <mtosatti@redhat.com>2010-03-01 16:36:06 +0100
commit59200273c4d07ddf99dd3c8d91b90bb170457fc3 (patch)
treebd0ecc72152d19f272248c8186b2f412df56bcf2 /arch/x86/kvm/vmx.c
parentKVM: Fix msr trace (diff)
downloadlinux-59200273c4d07ddf99dd3c8d91b90bb170457fc3.tar.xz
linux-59200273c4d07ddf99dd3c8d91b90bb170457fc3.zip
KVM: Trace failed msr reads and writes
Record failed msrs reads and writes, and the fact that they failed as well. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to '')
-rw-r--r--arch/x86/kvm/vmx.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7a56879a058c..334b016267a9 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3158,6 +3158,7 @@ static int handle_rdmsr(struct kvm_vcpu *vcpu)
u64 data;
if (vmx_get_msr(vcpu, ecx, &data)) {
+ trace_kvm_msr_read_ex(ecx);
kvm_inject_gp(vcpu, 0);
return 1;
}
@@ -3177,13 +3178,13 @@ static int handle_wrmsr(struct kvm_vcpu *vcpu)
u64 data = (vcpu->arch.regs[VCPU_REGS_RAX] & -1u)
| ((u64)(vcpu->arch.regs[VCPU_REGS_RDX] & -1u) << 32);
- trace_kvm_msr_write(ecx, data);
-
if (vmx_set_msr(vcpu, ecx, data) != 0) {
+ trace_kvm_msr_write_ex(ecx, data);
kvm_inject_gp(vcpu, 0);
return 1;
}
+ trace_kvm_msr_write(ecx, data);
skip_emulated_instruction(vcpu);
return 1;
}