Messages in this thread Patch in this message | | | Date | Thu, 08 May 2008 19:07:58 +0400 | From | Cyrill Gorcunov <> | Subject | [patch 2/2] x86: compressed/head_64.S cleanup - use predefined flags from processor-flags.h |
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We should better use already defined flags from processor-flags.h instead of defining own ones
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> ---
[>>> object code check >>>]
original md5sum: 129f24be6df396fb7d8bf998c01fc716 arch/x86/boot/compressed/head_64.o text data bss dec hex filename 705 48 45056 45809 b2f1 arch/x86/boot/compressed/head_64.o
patched md5sum: 129f24be6df396fb7d8bf998c01fc716 arch/x86/boot/compressed/head_64-new.o text data bss dec hex filename 705 48 45056 45809 b2f1 arch/x86/boot/compressed/head_64-new.o
[<<< object code check <<<]
Index: linux-2.6.git/arch/x86/boot/compressed/head_64.S =================================================================== --- linux-2.6.git.orig/arch/x86/boot/compressed/head_64.S 2008-04-29 21:20:57.000000000 +0400 +++ linux-2.6.git/arch/x86/boot/compressed/head_64.S 2008-05-08 18:37:32.000000000 +0400 @@ -30,6 +30,7 @@ #include <asm/page.h> #include <asm/boot.h> #include <asm/msr.h> +#include <asm/processor-flags.h> #include <asm/asm-offsets.h> .section ".text.head" @@ -109,7 +110,7 @@ startup_32: /* Enable PAE mode */ xorl %eax, %eax - orl $(1 << 5), %eax + orl $(X86_CR4_PAE), %eax movl %eax, %cr4 /* @@ -170,7 +171,7 @@ startup_32: pushl %eax /* Enter paged protected Mode, activating Long Mode */ - movl $0x80000001, %eax /* Enable Paging and Protected mode */ + movl $(X86_CR0_PG | X86_CR0_PE), %eax /* Enable Paging and Protected mode */ movl %eax, %cr0 /* Jump from 32bit compatibility mode into 64bit mode. */ --
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