x86, espfix: Make it possible to disable 16-bit support

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Embedded systems, which may be very memory-size-sensitive, are
extremely unlikely to ever encounter any 16-bit software, so make it
a CONFIG_EXPERT option to turn off support for any 16-bit software
whatsoever.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Link: http://lkml.kernel.org/r/1398816946-3351-1-git-send-email-hpa@linux.intel.com

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This commit is contained in:

H. Peter Anvin 2014-05-04 10:36:22 -07:00

parent 197725de65

commit 34273f41d5

4 changed files with 43 additions and 5 deletions

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23

arch/x86/Kconfig

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12

arch/x86/kernel/entry_32.S

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8

arch/x86/kernel/entry_64.S

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5

arch/x86/kernel/ldt.c

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