linux-kernel - [GIT PULL] EFI urgent fixes

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Message-ID: <20140411071622.GB17021@console-pimps.org>
Date:	Fri, 11 Apr 2014 08:16:22 +0100
From:	Matt Fleming <matt@...sole-pimps.org>
To:	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>
Cc:	linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [GIT PULL] EFI urgent fixes

Guys, please pull the following. One of the fixes is for a regression
introduced during the merge window. The other two are bugs that have
existed in the EFI boot stub for a while, but which have only just been
reported.

I'm going to take care of submitting the later two to stable separately
because they won't apply cleanly as-is.

The following changes since commit 204b0a1a4b92612c957a042df1a3be0e9cc79391:

  x86, efi: Abstract x86 efi_early calls (2014-03-26 11:30:03 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git tags/efi-urgent

for you to fetch changes up to 47514c996fac5e6f13ef3a4c5e23f1c5cffabb7b:

  efi: Pass correct file handle to efi_file_{read,close} (2014-04-10 21:20:03 +0100)

----------------------------------------------------------------
 * Fix EFI boot regression introduced during the merge window where the
   firmware was reading random values from the stack because we were
   passing a pointer to the wrong object type.

 * Kernel corruption has been reported when booting with the EFI boot
   stub which was tracked down to setting a bogus value for
   bp->hdr.code32_start, resulting in corruption during relocation.

 * Olivier Martin reported that the wrong file handles were being passed
   to efi_file_(read|close), which works for x86 by luck due to the way
   that the FAT driver is implemented, but doesn't work on ARM.

----------------------------------------------------------------
Matt Fleming (3):
      x86/efi: Fix boot failure with EFI stub
      x86/efi: Correct EFI boot stub use of code32_start
      efi: Pass correct file handle to efi_file_{read,close}

 arch/x86/boot/compressed/eboot.c       | 19 ++++++++++---------
 arch/x86/boot/compressed/head_32.S     |  8 ++------
 arch/x86/boot/compressed/head_64.S     |  9 +++------
 drivers/firmware/efi/efi-stub-helper.c |  6 +++---
 4 files changed, 18 insertions(+), 24 deletions(-)
-- 
Matt Fleming, Intel Open Source Technology Center
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