diff options
| author | Ian Campbell <ijc@hellion.org.uk> | 2008-02-09 23:24:09 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-02-09 23:24:09 +0100 |
| commit | 551889a6e2a24a9c06fd453ea03b57b7746ffdc0 (patch) | |
| tree | d906bbc4e4a96e243a14416bf02feb7a4ffd4d7a /include/asm-x86/pgtable_32.h | |
| parent | 185c045c245f46485ad8bbd8cc1100e986ff3f13 (diff) | |
x86: construct 32-bit boot time page tables in native format.
Specifically the boot time page tables in a CONFIG_X86_PAE=y enabled
kernel are in PAE format.
early_ioremap is updated to use the standard page table accessors.
Clear any mappings beyond max_low_pfn from the boot page tables in
native_pagetable_setup_start because the initial mappings can extend
beyond the range of physical memory and into the vmalloc area.
Derived from patches by Eric Biederman and H. Peter Anvin.
[ jeremy@goop.org: PAE swapper_pg_dir needs to be page-sized fix ]
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Mika Penttilä <mika.penttila@kolumbus.fi>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/pgtable_32.h')
| -rw-r--r-- | include/asm-x86/pgtable_32.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index 80dd438642f6..a842c7222b1e 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -52,10 +52,6 @@ void paging_init(void); #define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT) #define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS) -#define TWOLEVEL_PGDIR_SHIFT 22 -#define BOOT_USER_PGD_PTRS (__PAGE_OFFSET >> TWOLEVEL_PGDIR_SHIFT) -#define BOOT_KERNEL_PGD_PTRS (1024-BOOT_USER_PGD_PTRS) - /* Just any arbitrary offset to the start of the vmalloc VM area: the * current 8MB value just means that there will be a 8MB "hole" after the * physical memory until the kernel virtual memory starts. That means that |