Matt Fleming 108d3f44b1 x86/boot: Don't overwrite cr4 when enabling PAE ...

Some EFI firmware makes use of the FPU during boottime services and
clearing X86_CR4_OSFXSR by overwriting %cr4 causes the firmware to
crash.

Add the PAE bit explicitly instead of trashing the existing contents,
leaving the rest of the bits as the firmware set them.

Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>

2014-03-04 21:43:59 +00:00

..

.gitignore

x86, boot: add new generated files to the appropriate .gitignore files

2009-06-02 21:13:30 -07:00

aslr.c

x86, kaslr: Remove unused including <linux/version.h>

2014-01-14 10:45:56 -08:00

cmdline.c

x86, kaslr: Return location from decompress_kernel

2013-10-13 03:12:07 -07:00

cpuflags.c

x86, boot: Rename get_flags() and check_flags() to *_cpuflags()

2013-10-13 04:08:56 -07:00

early_serial_console.c

x86, boot: Exclude early_serial_console.c if can't use it.

2012-07-21 11:07:34 -07:00

eboot.c

x86/efi: Firmware agnostic handover entry points

2014-03-04 21:25:06 +00:00

eboot.h

x86/efi: Build our own EFI services pointer table

2014-03-04 21:25:03 +00:00

efi_stub_32.S

x86, efi: EFI boot stub support

2011-12-12 14:26:10 -08:00

efi_stub_64.S

x86/efi: Add early thunk code to go from 64-bit to 32-bit

2014-03-04 21:25:04 +00:00

head_32.S

x86/efi: Firmware agnostic handover entry points

2014-03-04 21:25:06 +00:00

head_64.S

x86/boot: Don't overwrite cr4 when enabling PAE

2014-03-04 21:43:59 +00:00

Makefile

Merge branch 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-01-20 14:45:50 -08:00

misc.c

x86, kaslr: Select random position from e820 maps

2013-10-13 03:12:19 -07:00

misc.h

x86, kaslr: Select random position from e820 maps

2013-10-13 03:12:19 -07:00

mkpiggy.c

x86: mkpiggy.c: Explicitly close the output file

2013-10-08 11:36:09 -07:00

string.c

x86, efi: EFI boot stub support

2011-12-12 14:26:10 -08:00

vmlinux.lds.S

x86, setup: Allow global variables and functions in the decompressor

2010-08-02 15:34:44 -07:00