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From: Joerg Roedel <joro@8bytes.org>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: X86 ML <x86@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	"H. Peter Anvin" <hpa@zytor.com>, Joerg Roedel <jroedel@suse.de>,
	Kees Cook <keescook@chromium.org>,
	Andy Lutomirski <luto@kernel.org>,
	Uros Bizjak <ubizjak@gmail.com>,
	Arvind Sankar <nivedita@alum.mit.edu>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Fabio Aiuto <fabioaiuto83@gmail.com>,
	"# 3.4.x" <stable@vger.kernel.org>
Subject: Re: [PATCH] x86/efi: Restore Firmware IDT in before ExitBootServices()
Date: Fri, 20 Aug 2021 10:01:37 +0200	[thread overview]
Message-ID: <YR9hYdsZgUylR/ur@8bytes.org> (raw)
In-Reply-To: <CAMj1kXGTxt8Ln58F9dNb-Jkzhvj-RRXrPZmoeNZ4dguhvrx=iQ@mail.gmail.com>

On Fri, Aug 20, 2021 at 09:41:12AM +0200, Ard Biesheuvel wrote:
> On Fri, 20 Aug 2021 at 09:34, Joerg Roedel <joro@8bytes.org> wrote:
> 
> Acked by: Ard Biesheuvel <ardb@kernel.org>

Thanks.
> 
> > -       subq    $32, %rsp
> > +       subq    $64, %rsp
> 
> Any reason in particular for the increase by 32?

Just wanted it to be a power of two, like before. Before it was 32
bytes, of which 30 were used. Now its 64, of which 40 are used.

Regards,

	Joerg

  reply	other threads:[~2021-08-20  8:02 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-20  7:34 [PATCH] x86/efi: Restore Firmware IDT in before ExitBootServices() Joerg Roedel
2021-08-20  7:41 ` Ard Biesheuvel
2021-08-20  8:01   ` Joerg Roedel [this message]
2021-08-20  8:43 ` David Laight
2021-08-20  8:52   ` 'Joerg Roedel'
2021-08-20  9:02     ` David Laight
2021-08-20 10:19       ` 'Joerg Roedel'
2021-08-20 11:31         ` Ard Biesheuvel
2021-08-20 11:51           ` Joerg Roedel
2021-08-20 15:46           ` David Laight
2021-08-20 16:04             ` Joerg Roedel
2021-08-20  9:26 ` Borislav Petkov
2021-08-20 11:24   ` Borislav Petkov

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