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authorDave Young <dyoung@redhat.com>2013-12-20 14:02:14 +0400
committerMatt Fleming <matt.fleming@intel.com>2013-12-21 19:09:51 +0400
commit3b2664964bc886ae9d5127c8d3708b1acc0626d2 (patch)
treefd6e3d90de57bf7229bdfa1376e04e8cd55acbab /arch/x86/platform/efi/efi_32.c
parent2da6e57cce14a1c3b0692d6f877b72e185110e2e (diff)
downloadlinux-3b2664964bc886ae9d5127c8d3708b1acc0626d2.tar.xz
x86/efi: Add a wrapper function efi_map_region_fixed()
Kexec kernel will use saved runtime virtual mapping, so add a new function efi_map_region_fixed() for directly mapping a md to md->virt. The md is passed in from 1st kernel, the virtual addr is saved in md->virt_addr. Signed-off-by: Dave Young <dyoung@redhat.com> Acked-by: Borislav Petkov <bp@suse.de> Tested-by: Toshi Kani <toshi.kani@hp.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'arch/x86/platform/efi/efi_32.c')
-rw-r--r--arch/x86/platform/efi/efi_32.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index e94557cf5487..7b3ec6ed99af 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -47,6 +47,8 @@ void __init efi_map_region(efi_memory_desc_t *md)
old_map_region(md);
}
+void __init efi_map_region_fixed(efi_memory_desc_t *md) {}
+
void efi_call_phys_prelog(void)
{
struct desc_ptr gdt_descr;