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| author | Matt Fleming <matt.fleming@intel.com> | 2015-08-07 10:36:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-08-08 10:37:39 +0200 |
| commit | fa5c35011a8d5f3d0c597a6336107eafd1b6046c (patch) | |
| tree | 86dac143384c3e30bb0201ec2ae57de1cc9f8b15 /arch/x86/boot | |
| parent | x86/efi-bgrt: Switch pr_err() to pr_debug() for invalid BGRT (diff) | |
| download | linux-fa5c35011a8d5f3d0c597a6336107eafd1b6046c.tar.xz linux-fa5c35011a8d5f3d0c597a6336107eafd1b6046c.zip | |
Revert "x86/efi: Request desired alignment via the PE/COFF headers"
This reverts commit:
aeffc4928ea2 ("x86/efi: Request desired alignment via the PE/COFF headers")
Linn reports that Signtool complains that kernels built with
CONFIG_EFI_STUB=y are violating the PE/COFF specification because
the 'SizeOfImage' field is not a multiple of 'SectionAlignment'.
This violation was introduced as an optimisation to skip having
the kernel relocate itself during boot and instead have the
firmware place it at a correctly aligned address.
No one else has complained and I'm not aware of any firmware
implementations that refuse to boot with commit aeffc4928ea2,
but it's a real bug, so revert the offending commit.
Reported-by: Linn Crosetto <linn@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michael Brown <mbrown@fensystems.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1438936621-5215-3-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/header.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S index 16ef02596db2..7a6d43a554d7 100644 --- a/arch/x86/boot/header.S +++ b/arch/x86/boot/header.S @@ -154,7 +154,7 @@ extra_header_fields: #else .quad 0 # ImageBase #endif - .long CONFIG_PHYSICAL_ALIGN # SectionAlignment + .long 0x20 # SectionAlignment .long 0x20 # FileAlignment .word 0 # MajorOperatingSystemVersion .word 0 # MinorOperatingSystemVersion |