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authorBernhard Walle <bwalle@suse.de>2008-06-27 13:12:55 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-08 17:55:42 +0200
commit5dfcf14d5b28174f94cbe9b4fb35d415db61c64a (patch)
treed5e6c47d8a635e07b3dfb3c115f8cae34fc7c553 /include/asm-x86
parent69ac9cd629ca96e59f34eb4ccd12d00b2c8276a7 (diff)
x86: use FIRMWARE_MEMMAP on x86/E820
This patch uses the /sys/firmware/memmap interface provided in the last patch on the x86 architecture when E820 is used. The patch copies the E820 memory map very early, and registers the E820 map afterwards via firmware_map_add_early(). Signed-off-by: Bernhard Walle <bwalle@suse.de> Acked-by: Greg KH <gregkh@suse.de> Acked-by: Vivek Goyal <vgoyal@redhat.com> Cc: kexec@lists.infradead.org Cc: yhlu.kernel@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86')
-rw-r--r--include/asm-x86/e820.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index 4b26604b3c1..a20d0a7f589 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -59,7 +59,9 @@ struct e820map {
struct e820entry map[E820_X_MAX];
};
+/* see comment in arch/x86/kernel/e820.c */
extern struct e820map e820;
+extern struct e820map e820_saved;
extern int e820_any_mapped(u64 start, u64 end, unsigned type);
extern int e820_all_mapped(u64 start, u64 end, unsigned type);