x86: Add a static_cpu_has_safe variant

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We want to use this in early code where alternatives might not have run
yet and for that case we fall back to the dynamic boot_cpu_has.

For that, force a 5-byte jump since the compiler could be generating
differently sized jumps for each label.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1370772454-6106-5-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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Borislav Petkov 2013-06-09 12:07:33 +02:00 • committed by H. Peter Anvin

parent 5700f743b5

commit 4a90a99c4f

2 changed files with 91 additions and 1 deletions

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86

arch/x86/include/asm/cpufeature.h

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6

arch/x86/kernel/cpu/common.c

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