KVM: Trace failed msr reads and writes

[safe/jmp/linux-2.6] / arch / x86 / kvm / vmx.c

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7a56879..334b016 100644 (file)
--- 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;
 }