x86, realmode: fix 64-bit wakeup sequence

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There were number of issues in wakeup sequence:

- Wakeup stack was placed in hardcoded address.
- NX bit in EFER was not enabled.
- Initialization incorrectly set physical address
of secondary_startup_64.
- Some alignment issues.

This patch fixes these issues and in addition:

- Unifies coding conventions in .S files.
- Sets alignments of code and data right.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-18-git-send-email-jarkko.sakkinen@intel.com
Originally-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

...

This commit is contained in:

Jarkko Sakkinen 2012-05-08 21:22:40 +03:00 • committed by H. Peter Anvin

parent 6feb592dce

commit 8e029fcdd8

9 changed files with 110 additions and 107 deletions

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2

arch/x86/kernel/realmode.c

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1

arch/x86/realmode/rm/Makefile

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2

arch/x86/realmode/rm/header.S

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18

arch/x86/realmode/rm/reboot_32.S

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19

arch/x86/realmode/rm/stack.S

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29

arch/x86/realmode/rm/trampoline_32.S

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63

arch/x86/realmode/rm/trampoline_64.S

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75

arch/x86/realmode/rm/wakeup/wakeup_asm.S

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4

arch/x86/realmode/rmpiggy.S

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