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original_kernel/arch/x86/realmode/rm/stack.S

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x86, realmode: fix 64-bit wakeup sequence 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>
2012-05-09 02:22:40 +08:00
/*
* Common heap and stack allocations
*/
#include <linux/linkage.h>
.data
GLOBAL(HEAP)
.long rm_heap
GLOBAL(heap_end)
.long rm_stack
.bss
.balign 16
GLOBAL(rm_heap)
.space 2048
GLOBAL(rm_stack)
.space 2048
GLOBAL(rm_stack_end)