Re: [PATCH v3 02/19] x86/boot: Move mem_encrypt= parsing to the decompressor

[Ard Biesheuvel]

On Wed, 31 Jan 2024 at 10:30, Borislav Petkov <bp@xxxxxxxxx> wrote:
>
> On Wed, Jan 31, 2024 at 10:12:13AM +0100, Ard Biesheuvel wrote:
> > The reason we need two flags is because there is no default value to
> > use when the command line param is absent.
>
> I think absent means memory encryption disabled like with every other
> option which is not present...
>
> > There is CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT but that one is AMD
>
> ... yes, and I'm thinking that it is time we kill this. I don't think
> anything uses it. It was meant well at the time.
>
> Let's wait for Tom to wake up first, though, as he might have some
> objections...
>

OK, yeah, that would help.

AIUI this is for SME only anyway - SEV ignores this, and I suppose TDX
will do the same.