Re: [tip: x86/boot] x86/boot/sev: Avoid shared GHCB page for early memory acceptance

From: Ingo Molnar
Date: Fri Apr 18 2025 - 03:42:08 EST



* Ard Biesheuvel <ardb@xxxxxxxxxx> wrote:

> On Sat, 12 Apr 2025 at 22:45, Ingo Molnar <mingo@xxxxxxxxxx> wrote:
> >
> >
> > * Ard Biesheuvel <ardb@xxxxxxxxxx> wrote:
> >
> > > On Sat, 12 Apr 2025 at 22:29, tip-bot2 for Ard Biesheuvel
> > > <tip-bot2@xxxxxxxxxxxxx> wrote:
> > > >
> > > > The following commit has been merged into the x86/boot branch of tip:
> > > >
> > >
> > > This may be slightly premature. I took some of Tom's code, hence the
> > > co-developed-by, but the should really confirm that what I did is
> > > correct before we queue this up.
> >
> > OK, I've zapped it again, especially as the rest of the series wasn't
> > ready either, please include the latest version of this patch as part
> > of the boot/setup/ series, which hard-relies upon it.
> >
>
> I have sent out a v4 here [0].
>
> I am not including it in the next rev of the startup/ refactor series,
> given that this change is a fix that also needs to go to stable.
> Please apply it as a fix and merge back the branch into tip/x86/boot -
> I will rebase the startup/ refactor series on top of that.
>
> Thanks,
>
> [0] https://lore.kernel.org/linux-efi/20250417202120.1002102-2-ardb+git@xxxxxxxxxx/T/#u

Noted, thanks for the heads up!

Ingo