Re: [PATCH v16 8/8] x86/smpboot: Allow parallel bringup for SEV-ES

Borislav Petkov
2023-03-27T19:32:24Z

On Mon, Mar 27, 2023 at 07:14:27PM +0100, David Woodhouse wrote:
> Shouldn't the rest of head64.c have the stack protector disabled, for
> similar reasons?

Not aware of any reason to that so far...

> Hm, doesn't most of that just go away (or at least become "Already
> Broken; Someone Else's Problem™") if you just concede to put your new C
> function into head64.c along with a whole bunch of other existing
> CONFIG_AMD_MEM_ENCRYPT support?

If it were only that, maybe, but we have to do the stack __va() thing as
Tom explained. So the jumping-through-hoops just to have a simple
function in C is not worth it... IMNSVHO, that is.

Thx.

--
Regards/Gruss,
Boris.