| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1273866363-14249-31-git-send-email-yinghai@kernel.org>
Date: Fri, 14 May 2010 12:45:56 -0700
From: Yinghai Lu <yinghai@...nel.org>
To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>,
Andrew Morton <akpm@...ux-foundation.org>,
David Miller <davem@...emloft.net>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Johannes Weiner <hannes@...xchg.org>,
linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 30/37] x86: Add sanitize_e820_map()
for 2.6.34
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/efi.c | 2 +-
arch/x86/kernel/setup.c | 8 ++++----
arch/x86/xen/setup.c | 4 +---
5 files changed, 18 insertions(+), 16 deletions(-)
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
index f59db16..25962e1 100644
--- a/arch/x86/include/asm/e820.h
+++ b/arch/x86/include/asm/e820.h
@@ -82,8 +82,7 @@ extern int e820_any_mapped(u64 start, u64 end, unsigned type);
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,
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 1144d20..3c4ddaa 100644
--- a/arch/x86/kernel/e820.c
+++ b/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 e820entry *biosmap, int max_nr_map,
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(void)
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_data *sdata, unsigned long pa_data)
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_memory_setup(void)
* 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;
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index ebe7c09..bb31919 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -273,7 +273,7 @@ static void __init do_add_efi_memmap(void)
}
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_lmb_reserve_area(void)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index aad3e6c..33ff7f4 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -462,7 +462,7 @@ static void __init e820_reserve_setup_data(void)
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");
@@ -625,7 +625,7 @@ static int __init dmi_low_memory_corruption(const struct dmi_system_id *d)
d->ident);
e820_update_range(0, 0x10000, E820_RAM, E820_RESERVED);
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map();
return 0;
}
@@ -694,7 +694,7 @@ 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 u64 __init get_max_mapped(void)
@@ -874,7 +874,7 @@ 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");
}
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index be3fcf3..d2954eb 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -44,8 +44,6 @@ char * __init xen_memory_setup(void)
max_pfn = min(MAX_DOMAIN_PAGES, max_pfn);
- e820.nr_map = 0;
-
e820_add_region(0, PFN_PHYS((u64)max_pfn), E820_RAM);
/*
@@ -66,7 +64,7 @@ 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();
return "Xen";
}
--
1.6.4.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists