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| author | Keith Mannthey <kmannth@us.ibm.com> | 2007-03-21 00:21:48 +0100 |
|---|---|---|
| committer | Adrian Bunk <bunk@stusta.de> | 2007-03-21 00:21:48 +0100 |
| commit | 799a734f0342670020fd446532a22ddf4c0f3c08 (patch) | |
| tree | 0360ea7334d0f21e8241146cb975758bb3f37774 /arch | |
| parent | 521c8225cc9cb09c7cfe626ee12afe8cc76e9ed5 (diff) | |
| download | linux-stable-799a734f0342670020fd446532a22ddf4c0f3c08.tar.gz linux-stable-799a734f0342670020fd446532a22ddf4c0f3c08.tar.bz2 linux-stable-799a734f0342670020fd446532a22ddf4c0f3c08.zip | |
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.
Signed-off-by: Keith Mannthey <kmannth@us.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/mm/boot_ioremap.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/i386/mm/boot_ioremap.c b/arch/i386/mm/boot_ioremap.c index 523b30634e0a..19921c54729e 100644 --- a/arch/i386/mm/boot_ioremap.c +++ b/arch/i386/mm/boot_ioremap.c @@ -30,8 +30,11 @@ */ #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) { |