@@ -1171,8 +1171,11 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode,
case APIC_DM_SMI:
result = 1;
- kvm_make_request(KVM_REQ_SMI, vcpu);
- kvm_vcpu_kick(vcpu);
+ if (static_call(kvm_x86_has_emulated_msr)(vcpu->kvm,
+ MSR_IA32_SMBASE)) {
+ kvm_make_request(KVM_REQ_SMI, vcpu);
+ kvm_vcpu_kick(vcpu);
+ }
break;
case APIC_DM_NMI:
@@ -233,6 +233,41 @@ static int vt_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
return vmx_get_msr(vcpu, msr_info);
}
+static int vt_smi_allowed(struct kvm_vcpu *vcpu, bool for_injection)
+{
+ if (is_td_vcpu(vcpu))
+ return tdx_smi_allowed(vcpu, for_injection);
+
+ return vmx_smi_allowed(vcpu, for_injection);
+}
+
+static int vt_enter_smm(struct kvm_vcpu *vcpu, char *smstate)
+{
+ if (unlikely(is_td_vcpu(vcpu)))
+ return tdx_enter_smm(vcpu, smstate);
+
+ return vmx_enter_smm(vcpu, smstate);
+}
+
+static int vt_leave_smm(struct kvm_vcpu *vcpu, const char *smstate)
+{
+ if (unlikely(is_td_vcpu(vcpu)))
+ return tdx_leave_smm(vcpu, smstate);
+
+ return vmx_leave_smm(vcpu, smstate);
+}
+
+static void vt_enable_smi_window(struct kvm_vcpu *vcpu)
+{
+ if (is_td_vcpu(vcpu)) {
+ tdx_enable_smi_window(vcpu);
+ return;
+ }
+
+ /* RSM will cause a vmexit anyway. */
+ vmx_enable_smi_window(vcpu);
+}
+
static void vt_apicv_post_state_restore(struct kvm_vcpu *vcpu)
{
struct pi_desc *pi = vcpu_to_pi_desc(vcpu);
@@ -588,10 +623,10 @@ struct kvm_x86_ops vt_x86_ops __initdata = {
.setup_mce = vmx_setup_mce,
- .smi_allowed = vmx_smi_allowed,
- .enter_smm = vmx_enter_smm,
- .leave_smm = vmx_leave_smm,
- .enable_smi_window = vmx_enable_smi_window,
+ .smi_allowed = vt_smi_allowed,
+ .enter_smm = vt_enter_smm,
+ .leave_smm = vt_leave_smm,
+ .enable_smi_window = vt_enable_smi_window,
.can_emulate_instruction = vmx_can_emulate_instruction,
.apic_init_signal_blocked = vmx_apic_init_signal_blocked,
@@ -1800,6 +1800,33 @@ int tdx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
return 1;
}
+int tdx_smi_allowed(struct kvm_vcpu *vcpu, bool for_injection)
+{
+ /* SMI isn't supported for TDX. */
+ WARN_ON_ONCE(1);
+ return false;
+}
+
+int tdx_enter_smm(struct kvm_vcpu *vcpu, char *smstate)
+{
+ /* smi_allowed() is always false for TDX as above. */
+ WARN_ON_ONCE(1);
+ return 0;
+}
+
+int tdx_leave_smm(struct kvm_vcpu *vcpu, const char *smstate)
+{
+ WARN_ON_ONCE(1);
+ return 0;
+}
+
+void tdx_enable_smi_window(struct kvm_vcpu *vcpu)
+{
+ /* SMI isn't supported for TDX. Silently discard SMI request. */
+ WARN_ON_ONCE(1);
+ vcpu->arch.smi_pending = false;
+}
+
int tdx_dev_ioctl(void __user *argp)
{
struct kvm_tdx_capabilities __user *user_caps;
@@ -162,6 +162,10 @@ void tdx_get_exit_info(struct kvm_vcpu *vcpu, u32 *reason,
bool tdx_is_emulated_msr(u32 index, bool write);
int tdx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
int tdx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
+int tdx_smi_allowed(struct kvm_vcpu *vcpu, bool for_injection);
+int tdx_enter_smm(struct kvm_vcpu *vcpu, char *smstate);
+int tdx_leave_smm(struct kvm_vcpu *vcpu, const char *smstate);
+void tdx_enable_smi_window(struct kvm_vcpu *vcpu);
int tdx_vm_ioctl(struct kvm *kvm, void __user *argp);
int tdx_vcpu_ioctl(struct kvm_vcpu *vcpu, void __user *argp);
@@ -203,6 +207,10 @@ static inline void tdx_get_exit_info(
static inline bool tdx_is_emulated_msr(u32 index, bool write) { return false; }
static inline int tdx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr) { return 1; }
static inline int tdx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr) { return 1; }
+static inline int tdx_smi_allowed(struct kvm_vcpu *vcpu, bool for_injection) { return false; }
+static inline int tdx_enter_smm(struct kvm_vcpu *vcpu, char *smstate) { return 0; }
+static inline int tdx_leave_smm(struct kvm_vcpu *vcpu, const char *smstate) { return 0; }
+static inline void tdx_enable_smi_window(struct kvm_vcpu *vcpu) {}
static inline int tdx_vm_ioctl(struct kvm *kvm, void __user *argp) { return -EOPNOTSUPP; }
static inline int tdx_vcpu_ioctl(struct kvm_vcpu *vcpu, void __user *argp) { return -EOPNOTSUPP; }
@@ -4893,7 +4893,8 @@ static int kvm_vcpu_ioctl_nmi(struct kvm_vcpu *vcpu)
static int kvm_vcpu_ioctl_smi(struct kvm_vcpu *vcpu)
{
- kvm_make_request(KVM_REQ_SMI, vcpu);
+ if (static_call(kvm_x86_has_emulated_msr)(vcpu->kvm, MSR_IA32_SMBASE))
+ kvm_make_request(KVM_REQ_SMI, vcpu);
return 0;
}