On 6/22/22 04:16, Kai Huang wrote: > SEAMCALL instruction causes #GP when SEAMRR isn't enabled, and #UD when > CPU is not in VMX operation. The TDX_MODULE_CALL macro doesn't handle > SEAMCALL exceptions. Leave to the caller to guarantee those conditions > before calling __seamcall(). I was trying to make the argument earlier that you don't need *ANY* detection for TDX, other than the ability to make a SEAMCALL. Basically, patch 01/22 could go away. You are right that: The TDX_MODULE_CALL macro doesn't handle SEAMCALL exceptions. But, it's also not hard to make it *able* to handle exceptions. So what does patch 01/22 buy us? One EXTABLE entry?
