linux-kernel - Re: [PATCH v3 01/19] efi/libstub: Add generic support for parsing mem

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Message-ID: <20240131073156.GHZbn3bILaWLEluzp-@fat_crate.local>
Date: Wed, 31 Jan 2024 08:31:56 +0100
From: Borislav Petkov <bp@...en8.de>
To: Ard Biesheuvel <ardb+git@...gle.com>
Cc: linux-kernel@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>,
	Kevin Loughlin <kevinloughlin@...gle.com>,
	Tom Lendacky <thomas.lendacky@....com>,
	Dionna Glaze <dionnaglaze@...gle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Andy Lutomirski <luto@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>,
	Kees Cook <keescook@...omium.org>, Brian Gerst <brgerst@...il.com>,
	linux-arch@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH v3 01/19] efi/libstub: Add generic support for parsing
 mem_encrypt=

On Mon, Jan 29, 2024 at 07:05:04PM +0100, Ard Biesheuvel wrote:
> From: Ard Biesheuvel <ardb@...nel.org>
> 
> Parse the mem_encrypt= command line parameter from the EFI stub if
> CONFIG_ARCH_HAS_MEM_ENCRYPT=y, so that it can be passed to the early
> boot code by the arch code in the stub.

I guess all systems which do memory encryption are EFI systems anyway so
we should not worry about the old ones...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette