KVM: TDX: Ignore setting up mce

Because vmx_set_mce function is VMX specific and it cannot be used for TDX.
Add vt stub to ignore setting up mce for TDX.

Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
Message-ID: <20250227012021.1778144-17-binbin.wu@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index 98e5904..0021739 100644 (file)
--- a/arch/x86/kvm/vmx/main.c
+++ b/arch/x86/kvm/vmx/main.c
@@ -843,6 +843,14 @@ static void vt_cancel_hv_timer(struct kvm_vcpu *vcpu)
 }
 #endif
 
+static void vt_setup_mce(struct kvm_vcpu *vcpu)
+{
+       if (is_td_vcpu(vcpu))
+               return;
+
+       vmx_setup_mce(vcpu);
+}
+
 static int vt_mem_enc_ioctl(struct kvm *kvm, void __user *argp)
 {
        if (!is_td(kvm))
@@ -1002,7 +1010,7 @@ struct kvm_x86_ops vt_x86_ops __initdata = {
        .cancel_hv_timer = vt_cancel_hv_timer,
 #endif
 
-       .setup_mce = vmx_setup_mce,
+       .setup_mce = vt_setup_mce,
 
 #ifdef CONFIG_KVM_SMM
        .smi_allowed = vt_smi_allowed,