[RFC PATCH 2/4] efi: Add memory_setup function efi_memory_setup()

[Linn Crosetto <linn@hp.com>]

Adding efi_memory_setup() to be used to override the default
memory_setup function when the EFI memory map should be used instead of
a BIOS provided e820 map.

Signed-off-by: Linn Crosetto <linn@hp.com>
---
 arch/x86/platform/efi/efi.c | 8 ++++++++
 include/linux/efi.h         | 1 +
 2 files changed, 9 insertions(+)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 32da922..c2a660c 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -711,6 +711,14 @@ static int __init efi_runtime_init(void)
 	return 0;
 }
 
+char * __init efi_memory_setup(void)
+{
+	char *who = "EFI";
+	efi_memmap_init();
+	do_add_efi_memmap();
+	return who;
+}
+
 void __init efi_init(void)
 {
 	efi_char16_t *c16;
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 5f8f176..977bbc7 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -567,6 +567,7 @@ efi_guid_unparse(efi_guid_t *guid, char *out)
         return out;
 }
 
+extern char *efi_memory_setup(void);
 extern void efi_init (void);
 extern void *efi_get_pal_addr (void);
 extern void efi_map_pal_code (void);
-- 
1.7.11.3