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Message-ID: <CAMj1kXFgUNDusUzVKh=2Mn802+x+0iop7O-aEZH0iuQtdOAFcw@mail.gmail.com>
Date: Mon, 4 Mar 2024 20:13:18 +0100
From: Ard Biesheuvel <ardb@...nel.org>
To: Tom Lendacky <thomas.lendacky@....com>
Cc: Ard Biesheuvel <ardb+git@...gle.com>, linux-kernel@...r.kernel.org, 
	Kevin Loughlin <kevinloughlin@...gle.com>, Dionna Glaze <dionnaglaze@...gle.com>, 
	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, Andy Lutomirski <luto@...nel.org>, 
	Brian Gerst <brgerst@...il.com>
Subject: Re: [PATCH v7 0/9] x86: Confine early 1:1 mapped startup code

On Mon, 4 Mar 2024 at 18:07, Tom Lendacky <thomas.lendacky@....com> wrote:
>
> On 2/27/24 09:19, Ard Biesheuvel wrote:
> > From: Ard Biesheuvel <ardb@...nel.org>
> >
> > This is resend #2 of v5 [0] with some touchups applied.
> >
> > Changes since v6:
> > - Drop flawed patch to move some SME/SEV related calls out of the early
> >    boot path to avoid the potential need for backporting patches #6/#7
> >    to kernels where SEV support may not be crucial. This problem will be
> >    dealt with if/when it arises while doing those backports.
> >
> > Changes since v5:
> > - drop patches that have been merged
> > - rebase onto latest tip/x86/boot
> > - fix comment regarding CR4.PGE wrt flushing of global TLB entries
> > - avoid adding startup code to .noinstr.text as it triggers objtool
> >    warnings
> >
> > [0] https://lore.kernel.org/all/20240221113506.2565718-18-ardb+git@google.com/
> >
> > Cc: Kevin Loughlin <kevinloughlin@...gle.com>
> > Cc: Tom Lendacky <thomas.lendacky@....com>
> > Cc: Dionna Glaze <dionnaglaze@...gle.com>
> > Cc: Thomas Gleixner <tglx@...utronix.de>
> > Cc: Ingo Molnar <mingo@...hat.com>
> > Cc: Borislav Petkov <bp@...en8.de>
> > Cc: Dave Hansen <dave.hansen@...ux.intel.com>
> > Cc: Andy Lutomirski <luto@...nel.org>
> > Cc: Brian Gerst <brgerst@...il.com>
>
> For the series, tested bare metal boots with mem_encrypt=on /
> mem_encrypt=off and boots of SVM, SEV, SEV-ES and SEV-SNP guests.
>
> Tested-by: Tom Lendacky <thomas.lendacky@....com>
>

Thanks a lot! I take it this was a kernel built with GCC?

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