Re: [RFC v2 16/32] x86/tdx: Handle MWAIT, MONITOR and WBINVD

[Dave Hansen]

On 5/11/21 10:06 AM, Andi Kleen wrote:
>> How do these end up in practice?  Do they still say "general protection
>> fault..."?
> 
> Yes, but there's a #VE specific message before it that prints the exit
> reason.
> 
>> Isn't that really mean for anyone that goes trying to figure out what
>> caused these?  If they see a "general protection fault" from WBINVD and
>> go digging in the SDM for how a #GP can come from WBINVD, won't they be
>> sorely disappointed?
> 
> They'll see both the message and also that it isn't a true #VE in the
> backtrace.

Is there a good reason for the enduring "general protection fault..."
message other than an aversion to refactoring the code?