x86: reserve EFI memory map with reserve_early

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>

1 files changed, 0 insertions, 6 deletions

diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 21a7b759687a..652c5287215f 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -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;