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authorIan Campbell <ijc@hellion.org.uk>2008-02-09 23:24:09 +0100
committerThomas Gleixner <tglx@linutronix.de>2008-02-09 23:24:09 +0100
commit551889a6e2a24a9c06fd453ea03b57b7746ffdc0 (patch)
treed906bbc4e4a96e243a14416bf02feb7a4ffd4d7a /include/asm-x86/pgtable_32.h
parent185c045c245f46485ad8bbd8cc1100e986ff3f13 (diff)
downloadblackbird-op-linux-551889a6e2a24a9c06fd453ea03b57b7746ffdc0.tar.gz
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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.h4
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
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