x86, realmode: header for trampoline code

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Added header for trampoline code that can be used to supply
input data to it. This makes interface between real mode code
and kernel cleaner and simpler. Replaced two confusing pointers
to level4 pgt in trampoline_64.S with a single pointer to the
beginning of the page table.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-21-git-send-email-jarkko.sakkinen@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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This commit is contained in:

Jarkko Sakkinen 2012-05-08 21:22:43 +03:00 • committed by H. Peter Anvin

parent c4845474a0

commit f37240f16b

8 changed files with 87 additions and 88 deletions

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32

arch/x86/include/asm/realmode.h

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27

arch/x86/kernel/realmode.c

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2

arch/x86/kernel/smpboot.c

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35

arch/x86/realmode/rm/header.S

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36

arch/x86/realmode/rm/trampoline_32.S

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18

arch/x86/realmode/rm/trampoline_64.S

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23

arch/x86/realmode/rm/trampoline_common.S

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2

arch/x86/realmode/rm/wakeup_asm.S

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