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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-02-27 21:27:38 (GMT)
committerH. Peter Anvin <hpa@zytor.com>2009-03-15 00:23:47 (GMT)
commitccf3fe02e35f4abca2589f99022cc25084bbd8ae (patch)
tree3bcf329116b8c689b4da1bb1a0d87bb587d3f3c7 /arch/x86/kernel/head32.c
parent5368a2be34b96fda9c05d79424fa63a73ead04ed (diff)
x86-32: use brk segment for allocating initial kernel pagetable
Impact: use new interface instead of previous ad hoc implementation Rather than having special purpose init_pg_table_start/end variables to delimit the kernel pagetable built by head_32.S, just use the brk mechanism to extend the bss for the new pagetable. This patch removes init_pg_table_start/end and pg0, defines __brk_base (which is page-aligned and immediately follows _end), initializes the brk region to start there, and uses it for the 32-bit pagetable. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/kernel/head32.c')
-rw-r--r--arch/x86/kernel/head32.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 29f1095..3f8579f 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -29,9 +29,6 @@ void __init i386_start_kernel(void)
reserve_early(ramdisk_image, ramdisk_end, "RAMDISK");
}
#endif
- reserve_early(init_pg_tables_start, init_pg_tables_end,
- "INIT_PG_TABLE");
-
reserve_ebda_region();
/*

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