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x86: reserve EFI memory map with reserve_early

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This patch reserves the EFI memory map with reserve_early(). Because EFI
memory map is allocated by bootloader, if it is not reserved by
reserved_early(), it may be overwritten through address returned by
find_e820_area().

Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: andi@firstfloor.org
Cc: mingo@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Huang, Ying
2008-06-02 14:26:21 +08:00
committed by Thomas Gleixner
parent d0ec2c6f2c
commit ecacf09f7d
5 changed files with 28 additions and 25 deletions
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6
arch/x86/kernel/efi_64.c
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@ -97,12 +97,6 @@ void __init efi_call_phys_epilog(void)
early_runtime_code_mapping_set_exec(0);
}
void __init efi_reserve_bootmem(void)
{
reserve_bootmem_generic((unsigned long)memmap.phys_map,
memmap.nr_map * memmap.desc_size);
}
void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size)
{
static unsigned pages_mapped __initdata;