From a3828064be4ed8e95907d3943e7af13cb709694d Mon Sep 17 00:00:00 2001 From: "Huang, Ying" Date: Wed, 30 Jan 2008 13:34:10 +0100 Subject: 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 Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/efi.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/x86/kernel/efi.c') diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 174b067b9d03..1411324a625c 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -474,6 +474,8 @@ void __init efi_enter_virtual_mode(void) efi.reset_system = virt_efi_reset_system; efi.set_virtual_address_map = virt_efi_set_virtual_address_map; runtime_code_page_mkexec(); + early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size); + memmap.map = NULL; } /* -- cgit v1.2.2