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authorDenys Vlasenko <dvlasenk@redhat.com>2016-09-18 00:39:26 +0300
committerIngo Molnar <mingo@kernel.org>2016-09-21 16:02:12 +0300
commit475339684ef19e46f4702e2d185a869a5c454688 (patch)
treed7973d4c3f413888bd5c629f96d57da6f4e3ab78 /arch/x86/include/asm/e820.h
parent8c2103f224216a45c1a4d7aebbc13f3e007cde34 (diff)
downloadlinux-475339684ef19e46f4702e2d185a869a5c454688.tar.xz
x86/e820: Prepare e280 code for switch to dynamic storage
This patch turns e820 and e820_saved into pointers to e820 tables, of the same size as before. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/20160917213927.1787-2-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/e820.h')
-rw-r--r--arch/x86/include/asm/e820.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
index 3ab0537872fb..476b574de99e 100644
--- a/arch/x86/include/asm/e820.h
+++ b/arch/x86/include/asm/e820.h
@@ -10,8 +10,8 @@
#include <uapi/asm/e820.h>
#ifndef __ASSEMBLY__
/* see comment in arch/x86/kernel/e820.c */
-extern struct e820map e820;
-extern struct e820map e820_saved;
+extern struct e820map *e820;
+extern struct e820map *e820_saved;
extern unsigned long pci_mem_start;
extern int e820_any_mapped(u64 start, u64 end, unsigned type);
@@ -53,6 +53,8 @@ extern void e820_reserve_resources_late(void);
extern void setup_memory_map(void);
extern char *default_machine_specific_memory_setup(void);
+extern void e820_reallocate_tables(void);
+
/*
* Returns true iff the specified range [s,e) is completely contained inside
* the ISA region.