3 files changed, 23 insertions, 21 deletions

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 89576549b1d5..298224fd60ad 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1517,7 +1517,7 @@ struct kvm_x86_init_ops {
 	int (*disabled_by_bios)(void);
 	int (*check_processor_compatibility)(void);
 	int (*hardware_setup)(void);
-	bool (*intel_pt_intr_in_guest)(void);
+	unsigned int (*handle_intel_pt_intr)(void);
 
 	struct kvm_x86_ops *runtime_ops;
 };
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index a0c24976e6bb..b258f90a23b9 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7655,6 +7655,20 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = {
 	.vcpu_deliver_sipi_vector = kvm_vcpu_deliver_sipi_vector,
 };
 
+static unsigned int vmx_handle_intel_pt_intr(void)
+{
+	struct kvm_vcpu *vcpu = kvm_get_running_vcpu();
+
+	/* '0' on failure so that the !PT case can use a RET0 static call. */
+	if (!kvm_arch_pmi_in_guest(vcpu))
+		return 0;
+
+	kvm_make_request(KVM_REQ_PMI, vcpu);
+	__set_bit(MSR_CORE_PERF_GLOBAL_OVF_CTRL_TRACE_TOPA_PMI_BIT,
+		  (unsigned long *)&vcpu->arch.pmu.global_status);
+	return 1;
+}
+
 static __init void vmx_setup_user_return_msrs(void)
 {
 
@@ -7681,6 +7695,8 @@ static __init void vmx_setup_user_return_msrs(void)
 		kvm_add_user_return_msr(vmx_uret_msrs_list[i]);
 }
 
+static struct kvm_x86_init_ops vmx_init_ops __initdata;
+
 static __init int hardware_setup(void)
 {
 	unsigned long host_bndcfgs;
@@ -7839,6 +7855,10 @@ static __init int hardware_setup(void)
 		return -EINVAL;
 	if (!enable_ept || !cpu_has_vmx_intel_pt())
 		pt_mode = PT_MODE_SYSTEM;
+	if (pt_mode == PT_MODE_HOST_GUEST)
+		vmx_init_ops.handle_intel_pt_intr = vmx_handle_intel_pt_intr;
+	else
+		vmx_init_ops.handle_intel_pt_intr = NULL;
 
 	setup_default_sgx_lepubkeyhash();
 
@@ -7867,7 +7887,7 @@ static struct kvm_x86_init_ops vmx_init_ops __initdata = {
 	.disabled_by_bios = vmx_disabled_by_bios,
 	.check_processor_compatibility = vmx_check_processor_compat,
 	.hardware_setup = hardware_setup,
-	.intel_pt_intr_in_guest = vmx_pt_mode_is_host_guest,
+	.handle_intel_pt_intr = NULL,
 
 	.runtime_ops = &vmx_x86_ops,
 };
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 32cb6f9ca077..4e0ed2fdc2e1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -8469,20 +8469,6 @@ static void kvm_timer_init(void)
 			  kvmclock_cpu_online, kvmclock_cpu_down_prep);
 }
 
-static unsigned int kvm_handle_intel_pt_intr(void)
-{
-	struct kvm_vcpu *vcpu = kvm_get_running_vcpu();
-
-	/* '0' on failure so that the !PT case can use a RET0 static call. */
-	if (!kvm_arch_pmi_in_guest(vcpu))
-		return 0;
-
-	kvm_make_request(KVM_REQ_PMI, vcpu);
-	__set_bit(MSR_CORE_PERF_GLOBAL_OVF_CTRL_TRACE_TOPA_PMI_BIT,
-			(unsigned long *)&vcpu->arch.pmu.global_status);
-	return 1;
-}
-
 #ifdef CONFIG_X86_64
 static void pvclock_gtod_update_fn(struct work_struct *work)
 {
@@ -11192,11 +11178,7 @@ int kvm_arch_hardware_setup(void *opaque)
 	memcpy(&kvm_x86_ops, ops->runtime_ops, sizeof(kvm_x86_ops));
 	kvm_ops_static_call_update();
 
-	/* Temporary ugliness. */
-	if (ops->intel_pt_intr_in_guest && ops->intel_pt_intr_in_guest())
-		kvm_register_perf_callbacks(kvm_handle_intel_pt_intr);
-	else
-		kvm_register_perf_callbacks(NULL);
+	kvm_register_perf_callbacks(ops->handle_intel_pt_intr);
 
 	if (!kvm_cpu_cap_has(X86_FEATURE_XSAVES))
 		supported_xss = 0;