linux-kernel - [GIT PULL] EFI urgent fix

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Message-Id: <20170127220604.21302-1-matt@codeblueprint.co.uk>
Date:   Fri, 27 Jan 2017 22:06:03 +0000
From:   Matt Fleming <matt@...eblueprint.co.uk>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H . Peter Anvin" <hpa@...or.com>
Cc:     Hanka Pavlikova <hanka@....cz>,
        Matt Fleming <matt@...eblueprint.co.uk>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
        Borislav Petkov <bp@...en8.de>, Borislav Petkov <bp@...e.de>,
        Jiri Kosina <jkosina@...e.cz>,
        Laura Abbott <labbott@...hat.com>,
        Vojtech Pavlik <vojtech@....cz>,
        Waiman Long <waiman.long@....com>
Subject: [GIT PULL] EFI urgent fix

Folks, please pull the below fix from Jiri which fixes a triple fault
affecting the Lenovo Yogas since v4.8.

The following changes since commit 7a308bb3016f57e5be11a677d15b821536419d36:

  Linux 4.10-rc5 (2017-01-22 12:54:15 -0800)

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 090abfc9dc7faf3f84799f956158c8c3af149a81:

  x86/efi: Always map first physical page into EFI pagetables (2017-01-27 20:20:01 +0000)

----------------------------------------------------------------
 * Fix triple fault on boot affecting Lenovo Yoga. The firmware on
   these machines will write to the zero page even though it's marked
   EFI_CONVENTIONAL_MEMORY, so we must ensure it's mapped in the EFI
   page tables - Jiri Kosina

----------------------------------------------------------------
Jiri Kosina (1):
      x86/efi: Always map first physical page into EFI pagetables

 arch/x86/platform/efi/efi_64.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)