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authorHuang, Ying <ying.huang@intel.com>2008-01-30 13:34:10 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:34:10 +0100
commita3828064be4ed8e95907d3943e7af13cb709694d (patch)
treeb5458f61681a0bf4c3640f28c51ccd0a24c0c6b5 /arch/x86/kernel/efi_32.c
parentbed23c67fe077b4d66cb3329263d7cfa33b3fd67 (diff)
x86: fixes some bugs about EFI memory map handling
This patch fixes some bugs of EFI memory handing code. - On x86_64, it is possible that EFI memory map can not be mapped via identity map, so efi_map_memmap is removed, just use early_ioremap. - On i386, the EFI memory map mapping take effect cross paging_init, so it is not necessary to use efi_map_memmap. - EFI memory map is unmapped in efi_enter_virtual_mode to avoid early_ioremap leak. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/efi_32.c')
-rw-r--r--arch/x86/kernel/efi_32.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index 114b896d757..cb91f985b4a 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -109,18 +109,3 @@ void efi_call_phys_epilog(void)
local_irq_restore(efi_rt_eflags);
}
-
-/*
- * We need to map the EFI memory map again after paging_init().
- */
-void __init efi_map_memmap(void)
-{
- memmap.map = NULL;
-
- memmap.map = early_ioremap((unsigned long) memmap.phys_map,
- (memmap.nr_map * memmap.desc_size));
- if (memmap.map == NULL)
- printk(KERN_ERR "Could not remap the EFI memmap!\n");
-
- memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
-}