diff options
| author | Avi Kivity <avi@redhat.com> | 2009-12-29 17:33:58 +0200 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 12:35:50 -0300 |
| commit | a1f83a74feaa9718a5c61587256ea6cc1b993d16 (patch) | |
| tree | 7771695e1ed29849cf1929c4149ab1818e17c3c8 | |
| parent | 4b5c9b7f9bdd76a3c860731db08bfc6758e96e29 (diff) | |
KVM: VMX: trace clts and lmsw instructions as cr accesses
clts writes cr0.ts; lmsw writes cr0[0:15] - record that in ftrace.
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/vmx.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 9b197b25b66d..7c7b2eeea5d0 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2997,6 +2997,7 @@ static int handle_cr(struct kvm_vcpu *vcpu) vmx_fpu_deactivate(vcpu); vcpu->arch.cr0 &= ~X86_CR0_TS; vmcs_writel(CR0_READ_SHADOW, vcpu->arch.cr0); + trace_kvm_cr_write(0, vcpu->arch.cr0); vmx_fpu_activate(vcpu); skip_emulated_instruction(vcpu); return 1; @@ -3016,7 +3017,9 @@ static int handle_cr(struct kvm_vcpu *vcpu) } break; case 3: /* lmsw */ - kvm_lmsw(vcpu, (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f); + val = (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f; + trace_kvm_cr_write(0, (vcpu->arch.cr0 & ~0xful) | val); + kvm_lmsw(vcpu, val); skip_emulated_instruction(vcpu); return 1; |