early init pgt for fix virtual addr in head.S, so can use set_fixmap before setup_arch. otherwise set_fixmap_nocache will not work for i386
Signed-off-by: "Eric W. Biederman" <[EMAIL PROTECTED]> Signed-off-by: Yinghai Lu <[EMAIL PROTECTED]>
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S index f74dfc4..2d37850 100644 --- a/arch/i386/kernel/head.S +++ b/arch/i386/kernel/head.S @@ -168,6 +168,12 @@ page_pde_offset = (__PAGE_OFFSET >> 20); .section .init.text,"ax",@progbits #endif + /* Do an early initialization of the fixmap area */ + movl $(swapper_pg_dir - __PAGE_OFFSET), %edx + movl $(swapper_pg_pmd - __PAGE_OFFSET), %eax + addl $0x007, %eax /* 0x007 = PRESENT+RW+USER */ + movl %eax, 4092(%edx) + #ifdef CONFIG_SMP ENTRY(startup_32_smp) cld @@ -507,6 +513,8 @@ ENTRY(_stext) .section ".bss.page_aligned","w" ENTRY(swapper_pg_dir) .fill 1024,4,0 +ENTRY(swapper_pg_pmd) + .fill 1024,4,0 ENTRY(empty_zero_page) .fill 4096,1,0
