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x86/boot/64: Put __startup_64() into .head.text

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Put __startup_64() and fixup_pointer() into .head.text section to make
sure it's always near startup_64() and always callable.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel test robot <fengguang.wu@intel.com>
Cc: wfg@linux.intel.com
Link: http://lkml.kernel.org/r/20170616113024.ajmif63cmcszry5a@black.fi.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Kirill A. Shutemov 2017-06-16 14:30:24 +03:00 committed by Ingo Molnar
parent 8624c1f66f
commit 26179670a6
1 changed files with 4 additions and 2 deletions
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6
arch/x86/kernel/head64.c
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@ -38,12 +38,14 @@ extern pmd_t early_dynamic_pgts[EARLY_DYNAMIC_PAGE_TABLES][PTRS_PER_PMD];
static unsigned int __initdata next_early_pgt;
pmdval_t early_pmd_flags = __PAGE_KERNEL_LARGE & ~(_PAGE_GLOBAL | _PAGE_NX);
static void __init *fixup_pointer(void *ptr, unsigned long physaddr)
#define __head __section(.head.text)
static void __head *fixup_pointer(void *ptr, unsigned long physaddr)
{
return ptr - (void *)_text + (void *)physaddr;
}
void __init __startup_64(unsigned long physaddr)
void __head __startup_64(unsigned long physaddr)
{
unsigned long load_delta, *p;
pgdval_t *pgd;