linux-kernel - Re: [GIT PULL 0/1] EFI mixed mode fix for v4.18

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Message-ID: <20180711101303.GA8574@gmail.com>
Date:   Wed, 11 Jul 2018 12:13:03 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:     linux-efi@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
        Wilfried Klaebe <linux-kernel@...enslange-mailadresse.de>
Subject: Re: [GIT PULL 0/1] EFI mixed mode fix for v4.18


* Ard Biesheuvel <ard.biesheuvel@...aro.org> wrote:

> The following changes since commit 1e4b044d22517cae7047c99038abb444423243ca:
> 
>   Linux 4.18-rc4 (2018-07-08 16:34:02 -0700)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git tags/efi-urgent
> 
> for you to fetch changes up to d7f2e972e702d329fe11d6956df99dfc31211c25:
> 
>   efi/x86: remove pointless call to PciIo->Attributes() (2018-07-11 10:52:46 +0200)
> 
> ----------------------------------------------------------------
> A single fix for the x86 PCI I/O protocol handling code that got
> broken for mixed mode (64-bit Linux/x86 on 32-bit UEFI) after a
> fix was applied in -rc2 to fix it for ordinary 64-bit Linux/x86.

Just curious, because it's unclear from the changelog, what was the symptom, a 
boot hang, instant reboot, or some other misbehavior? Also, what's the scope of 
the fix: were all 64-bit on 32-bit UEFI mixed-mode bootups affected, or only a 
certain subset?

Thanks,

	Ingo