[PATCH v2 16/20] KVM: TDX: Ignore setting up mce

Binbin Wu
2025-02-27T01:19:42Z

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>
---
TDX "the rest" v2:
- No change.
---
arch/x86/kvm/vmx/main.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index 554975f053ff..d73ea9ce750d 100644
--- 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,
--
2.46.0