[v4,59/66] i386/tdx: LMCE is not supported for TDX

Commit Message

Xiaoyao Li Jan. 25, 2024, 3:23 a.m. UTC

LMCE is not supported TDX since KVM doesn't provide emulation for
MSR_IA32_FEAT_CTL.

Signed-off-by: Xiaoyao Li <[e-mail]>
---
 target/i386/kvm/kvm-cpu.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch

diff --git a/target/i386/kvm/kvm-cpu.c b/target/i386/kvm/kvm-cpu.c
index 9c791b7b0520..8c618869533c 100644
--- a/target/i386/kvm/kvm-cpu.c
+++ b/target/i386/kvm/kvm-cpu.c
@@ -15,6 +15,7 @@ 
 #include "sysemu/sysemu.h"
 #include "hw/boards.h"
 
+#include "tdx.h"
 #include "kvm_i386.h"
 #include "hw/core/accel-cpu.h"
 
@@ -60,6 +61,10 @@  static bool lmce_supported(void)
     if (kvm_ioctl(kvm_state, KVM_X86_GET_MCE_CAP_SUPPORTED, &mce_cap) < 0) {
         return false;
     }
+
+    if (is_tdx_vm())
+        return false;
+
     return !!(mce_cap & MCG_LMCE_P);
 }