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| author | H. Peter Anvin <hpa@linux.intel.com> | 2012-05-16 22:22:41 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-05-16 22:22:41 +0200 |
| commit | 796038799a72adb279d785c9154df6eeb98b6e8d (patch) | |
| tree | cb8d244b42bb988a07bbffa8eeffab3f3200591a /arch/x86/realmode | |
| parent | x86, realmode: Fix no cache bits test in reboot_32.S (diff) | |
| download | linux-796038799a72adb279d785c9154df6eeb98b6e8d.tar.xz linux-796038799a72adb279d785c9154df6eeb98b6e8d.zip | |
x86, realmode: Mask out EFER.LMA when saving trampoline EFER
Some AMD processors apparently #GP(0) if EFER.LMA is set in WRMSR,
rather than ignoring it. Thus, we need to mask it out.
Reported-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Borislav Petkov <bp@alien8.de>
Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-24-git-send-email-jarkko.sakkinen@intel.com
Diffstat (limited to 'arch/x86/realmode')
0 files changed, 0 insertions, 0 deletions