x86: compressed/head_64.S cleanup - use predefined flags from processor-flags.h

We should better use already defined flags from processor-flags.h instead
of defining own ones

[>>> 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 <<<]

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index d8819efac81dc4488ff59163172448710311cce0..1d5dff4123e15a3cebf9c59f6edaa9575c58dc70 100644 (file)
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -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. */