x86/xsaves: Use xsaves/xrstors to save and restore xsave area

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If xsaves is eanbled, use xsaves/xrstors instrucitons to save and restore
xstate. xsaves and xrstors support compacted format, init optimization,
modified optimization, and supervisor states.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1401387164-43416-9-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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Fenghua Yu 2014-05-29 11:12:36 -07:00 • committed by H. Peter Anvin

parent b84e70552e

commit f31a9f7c71

1 changed files with 64 additions and 20 deletions

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arch/x86/include/asm/xsave.h

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