diff options
| author | Len Brown <len.brown@intel.com> | 2005-07-30 01:55:32 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2005-07-30 01:55:32 -0400 |
| commit | adbedd34244e2b054557002817f979a9b004a405 (patch) | |
| tree | 78e4a524e84f8b3e23ae8b49ac689048584e4668 /arch/x86_64/kernel/head.S | |
| parent | d6ac1a7910d22626bc77e73db091e00b810715f4 (diff) | |
| parent | b0825488a642cadcf39709961dde61440cb0731c (diff) | |
merge 2.6.13-rc4 with ACPI's to-linus tree
Diffstat (limited to 'arch/x86_64/kernel/head.S')
| -rw-r--r-- | arch/x86_64/kernel/head.S | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S index 8d765aa77a2..98ff5eb32b9 100644 --- a/arch/x86_64/kernel/head.S +++ b/arch/x86_64/kernel/head.S @@ -137,14 +137,14 @@ startup_64: wrmsr /* Setup cr0 */ - xorq %rax, %rax - btsq $31, %rax /* Enable paging */ - btsq $0, %rax /* Enable protected mode */ - btsq $1, %rax /* Enable MP */ - btsq $4, %rax /* Enable ET */ - btsq $5, %rax /* Enable NE */ - btsq $16, %rax /* Enable WP */ - btsq $18, %rax /* Enable AM */ +#define CR0_PM 1 /* protected mode */ +#define CR0_MP (1<<1) +#define CR0_ET (1<<4) +#define CR0_NE (1<<5) +#define CR0_WP (1<<16) +#define CR0_AM (1<<18) +#define CR0_PAGING (1<<31) + movl $CR0_PM|CR0_MP|CR0_ET|CR0_NE|CR0_WP|CR0_AM|CR0_PAGING,%eax /* Make changes effective */ movq %rax, %cr0 |