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>

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;