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authorVivek Goyal <vgoyal@in.ibm.com>2007-05-02 19:27:06 +0200
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 19:27:06 +0200
commit67dcbb6bc6537aea92a2466bfc75f015b00e465e (patch)
tree605b494bd00f634c60c84a7eccbbbb65f4156347 /include
parentdafe41ee3a9389c08c91cdfd8670295f20f89e04 (diff)
[PATCH] x86-64: Clean up the early boot page table
- Merge physmem_pgt and ident_pgt, removing physmem_pgt. The merge is broken as soon as mm/init.c:init_memory_mapping is run. - As physmem_pgt is gone don't export it in pgtable.h. - Use defines from pgtable.h for page permissions. - Fix the physical memory identity mapping so it is at the correct address. - Remove the physical memory mapping from wakeup_level4_pgt it is at the wrong address so we can't possibly be usinging it. - Simply NEXT_PAGE the work to calculate the phys_ alias of the labels was very cool. Unfortuantely it was a brittle special purpose hack that makes maitenance more difficult. Instead just use label - __START_KERNEL_map like we do everywhere else in assembly. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86_64/pgtable.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h
index c514deb658a..5a5d43b3ef5 100644
--- a/include/asm-x86_64/pgtable.h
+++ b/include/asm-x86_64/pgtable.h
@@ -14,7 +14,6 @@
#include <asm/pda.h>
extern pud_t level3_kernel_pgt[512];
-extern pud_t level3_physmem_pgt[512];
extern pud_t level3_ident_pgt[512];
extern pmd_t level2_kernel_pgt[512];
extern pgd_t init_level4_pgt[];