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x86: Use symbolic MSR names

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Use symbolic MSR names instead of hardcoding the MSR index.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
LKML-Reference: <1279371808-24804-2-git-send-email-brgerst@gmail.com>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Brian Gerst 2010-07-17 09:03:27 -04:00 committed by H. Peter Anvin
parent 8c06585d64
commit cfaa71ee97
2 changed files with 3 additions and 2 deletions
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2
arch/x86/kernel/acpi/realmode/wakeup.S
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@ -104,7 +104,7 @@ _start:
movl %eax, %ecx
orl %edx, %ecx
jz 1f
movl $0xc0000080, %ecx
movl $MSR_EFER, %ecx
wrmsr
1:

3
arch/x86/kernel/verify_cpu_64.S
View File

@ -31,6 +31,7 @@
*/
#include <asm/cpufeature.h>
#include <asm/msr-index.h>
verify_cpu:
pushfl # Save caller passed flags
@ -88,7 +89,7 @@ verify_cpu_sse_test:
je verify_cpu_sse_ok
test %di,%di
jz verify_cpu_no_longmode # only try to force SSE on AMD
movl $0xc0010015,%ecx # HWCR
movl $MSR_K7_HWCR,%ecx
rdmsr
btr $15,%eax # enable SSE
wrmsr