KVM: Record instruction set in kvm_exit tracepoint
exit_reason's meaning depend on the instruction set; record it so a trace
taken on one machine can be interpreted on another.
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 7c7f03b..78a2308 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2980,7 +2980,7 @@
struct kvm_run *kvm_run = vcpu->run;
u32 exit_code = svm->vmcb->control.exit_code;
- trace_kvm_exit(exit_code, vcpu);
+ trace_kvm_exit(exit_code, vcpu, KVM_ISA_SVM);
if (!(svm->vmcb->control.intercept_cr_write & INTERCEPT_CR0_MASK))
vcpu->arch.cr0 = svm->vmcb->save.cr0;
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index a6544b8..1061022 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -178,21 +178,26 @@
#define trace_kvm_apic_read(reg, val) trace_kvm_apic(0, reg, val)
#define trace_kvm_apic_write(reg, val) trace_kvm_apic(1, reg, val)
+#define KVM_ISA_VMX 1
+#define KVM_ISA_SVM 2
+
/*
* Tracepoint for kvm guest exit:
*/
TRACE_EVENT(kvm_exit,
- TP_PROTO(unsigned int exit_reason, struct kvm_vcpu *vcpu),
- TP_ARGS(exit_reason, vcpu),
+ TP_PROTO(unsigned int exit_reason, struct kvm_vcpu *vcpu, u32 isa),
+ TP_ARGS(exit_reason, vcpu, isa),
TP_STRUCT__entry(
__field( unsigned int, exit_reason )
__field( unsigned long, guest_rip )
+ __field( u32, isa )
),
TP_fast_assign(
__entry->exit_reason = exit_reason;
__entry->guest_rip = kvm_rip_read(vcpu);
+ __entry->isa = isa;
),
TP_printk("reason %s rip 0x%lx",
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6bf807a..2495910 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3700,7 +3700,7 @@
u32 exit_reason = vmx->exit_reason;
u32 vectoring_info = vmx->idt_vectoring_info;
- trace_kvm_exit(exit_reason, vcpu);
+ trace_kvm_exit(exit_reason, vcpu, KVM_ISA_VMX);
/* If guest state is invalid, start emulating */
if (vmx->emulation_required && emulate_invalid_guest_state)