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>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9b197b2..7c7b2ee 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2997,6 +2997,7 @@
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 @@
}
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;