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Date: Wed, 10 Nov 2010 16:53:25 -0800
From: Yinghai Lu <yinghai@...nel.org>
To: "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
Thomas Gleixner <tglx@...utronix.de>
CC: Jan Beulich <jbeulich@...ell.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 1/2] x86: Change sanitize_e820_map() definition
Tt will use e820 directly.
So We don't need to carry e820.map with it.
Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
arch/x86/include/asm/e820.h | 3 +--
arch/x86/kernel/e820.c | 17 +++++++++++------
arch/x86/kernel/setup.c | 6 +++---
arch/x86/platform/efi/efi.c | 2 +-
arch/x86/xen/setup.c | 5 ++---
5 files changed, 18 insertions(+), 15 deletions(-)
Index: linux-2.6/arch/x86/kernel/e820.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/e820.c
+++ linux-2.6/arch/x86/kernel/e820.c
@@ -225,7 +225,7 @@ void __init e820_print_map(char *who)
* ______________________4_
*/
-int __init sanitize_e820_map(struct e820entry *biosmap, int max_nr_map,
+static int __init __sanitize_e820_map(struct e820entry *biosmap, int max_nr_map,
u32 *pnr_map)
{
struct change_member {
@@ -384,6 +384,11 @@ int __init sanitize_e820_map(struct e820
return 0;
}
+int __init sanitize_e820_map(void)
+{
+ return __sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+}
+
static int __init __append_e820_map(struct e820entry *biosmap, int nr_map)
{
while (nr_map) {
@@ -572,7 +577,7 @@ void __init update_e820(void)
u32 nr_map;
nr_map = e820.nr_map;
- if (sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &nr_map))
+ if (__sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &nr_map))
return;
e820.nr_map = nr_map;
printk(KERN_INFO "modified physical RAM map:\n");
@@ -583,7 +588,7 @@ static void __init update_e820_saved(voi
u32 nr_map;
nr_map = e820_saved.nr_map;
- if (sanitize_e820_map(e820_saved.map, ARRAY_SIZE(e820_saved.map), &nr_map))
+ if (__sanitize_e820_map(e820_saved.map, ARRAY_SIZE(e820_saved.map), &nr_map))
return;
e820_saved.nr_map = nr_map;
}
@@ -678,7 +683,7 @@ void __init parse_e820_ext(struct setup_
sdata = early_ioremap(pa_data, map_len);
extmap = (struct e820entry *)(sdata->data);
__append_e820_map(extmap, entries);
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map();
if (map_len > PAGE_SIZE)
early_iounmap(sdata, map_len);
printk(KERN_INFO "extended physical RAM map:\n");
@@ -910,7 +915,7 @@ void __init finish_e820_parsing(void)
if (userdef) {
u32 nr = e820.nr_map;
- if (sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &nr) < 0)
+ if (__sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &nr) < 0)
early_panic("Invalid user supplied memory map");
e820.nr_map = nr;
@@ -1040,7 +1045,7 @@ char *__init default_machine_specific_me
* the next section from 1mb->appropriate_mem_k
*/
new_nr = boot_params.e820_entries;
- sanitize_e820_map(boot_params.e820_map,
+ __sanitize_e820_map(boot_params.e820_map,
ARRAY_SIZE(boot_params.e820_map),
&new_nr);
boot_params.e820_entries = new_nr;
Index: linux-2.6/arch/x86/platform/efi/efi.c
===================================================================
--- linux-2.6.orig/arch/x86/platform/efi/efi.c
+++ linux-2.6/arch/x86/platform/efi/efi.c
@@ -273,7 +273,7 @@ static void __init do_add_efi_memmap(voi
}
e820_add_region(start, size, e820_type);
}
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map();
}
void __init efi_memblock_x86_reserve_range(void)
Index: linux-2.6/arch/x86/kernel/setup.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup.c
+++ linux-2.6/arch/x86/kernel/setup.c
@@ -462,7 +462,7 @@ static void __init e820_reserve_setup_da
if (!found)
return;
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map();
memcpy(&e820_saved, &e820, sizeof(struct e820map));
printk(KERN_INFO "extended physical RAM map:\n");
e820_print_map("reserve setup_data");
@@ -644,7 +644,7 @@ static void __init trim_bios_range(void)
* take them out.
*/
e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map();
}
static int __init parse_reservelow(char *p)
@@ -861,7 +861,7 @@ void __init setup_arch(char **cmdline_p)
if (ppro_with_ram_bug()) {
e820_update_range(0x70000000ULL, 0x40000ULL, E820_RAM,
E820_RESERVED);
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map();
printk(KERN_INFO "fixed physical RAM map:\n");
e820_print_map("bad_ppro");
}
Index: linux-2.6/arch/x86/xen/setup.c
===================================================================
--- linux-2.6.orig/arch/x86/xen/setup.c
+++ linux-2.6/arch/x86/xen/setup.c
@@ -60,7 +60,7 @@ static __init void xen_add_extra_mem(uns
return;
e820_add_region(extra_start, size, E820_RAM);
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map();
memblock_x86_reserve_range(extra_start, extra_start + size, "XEN EXTRA");
@@ -174,7 +174,6 @@ char * __init xen_memory_setup(void)
}
BUG_ON(rc);
- e820.nr_map = 0;
xen_extra_mem_start = mem_end;
for (i = 0; i < memmap.nr_entries; i++) {
unsigned long long end = map[i].addr + map[i].size;
@@ -221,7 +220,7 @@ char * __init xen_memory_setup(void)
__pa(xen_start_info->pt_base),
"XEN START INFO");
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map();
extra_pages += xen_return_unused_memory(xen_start_info->nr_pages, &e820);
Index: linux-2.6/arch/x86/include/asm/e820.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/e820.h
+++ linux-2.6/arch/x86/include/asm/e820.h
@@ -82,8 +82,7 @@ extern int e820_any_mapped(u64 start, u6
extern int e820_all_mapped(u64 start, u64 end, unsigned type);
extern void e820_add_region(u64 start, u64 size, int type);
extern void e820_print_map(char *who);
-extern int
-sanitize_e820_map(struct e820entry *biosmap, int max_nr_map, u32 *pnr_map);
+int sanitize_e820_map(void);
extern u64 e820_update_range(u64 start, u64 size, unsigned old_type,
unsigned new_type);
extern u64 e820_remove_range(u64 start, u64 size, unsigned old_type,
--
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