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authorkeith mannthey <kmannth@us.ibm.com>2006-09-25 16:24:39 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-25 17:38:35 -0700
commit24fd425edd53ea580cad917e825c1f6715e9b939 (patch)
treebcd6d5394434edb960fe71ebc9173324980cba35 /arch
parent0b16f21f144010aa627c58b3a33be49ebfd685dc (diff)
downloadlinux-24fd425edd53ea580cad917e825c1f6715e9b939.tar.bz2
[PATCH] i386 bootioremap / kexec fix
With CONFIG_PHYSICAL_START set to a non default values the i386 boot_ioremap code calculated its pte index wrong and users of boot_ioremap have their areas incorrectly mapped (for me SRAT table not mapped during early boot). This patch removes the addr < BOOT_PTE_PTRS constraint. [ Keith says this is applicable to 2.6.16 and 2.6.17 as well ] Signed-off-by: Keith Mannthey<kmannth@us.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: <stable@kernel.org> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/mm/boot_ioremap.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/i386/mm/boot_ioremap.c b/arch/i386/mm/boot_ioremap.c
index 5d44f4f5ff59..4de11f508c3a 100644
--- a/arch/i386/mm/boot_ioremap.c
+++ b/arch/i386/mm/boot_ioremap.c
@@ -29,8 +29,11 @@
*/
#define BOOT_PTE_PTRS (PTRS_PER_PTE*2)
-#define boot_pte_index(address) \
- (((address) >> PAGE_SHIFT) & (BOOT_PTE_PTRS - 1))
+
+static unsigned long boot_pte_index(unsigned long vaddr)
+{
+ return __pa(vaddr) >> PAGE_SHIFT;
+}
static inline boot_pte_t* boot_vaddr_to_pte(void *address)
{