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| author | Borislav Petkov <petkovbb@googlemail.com> | 2009-08-31 11:50:09 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-09-01 02:14:26 +0400 |
| commit | 132ec92f3f70fe365c1f4b8d46e66cf8a2a16880 (patch) | |
| tree | f8e3f3ab5541f583030b0bcd5f3f81ca338f77a2 /arch/x86/lib/Makefile | |
| parent | 366d19e181be873c70f4aafca3931d77d781ccd7 (diff) | |
| download | linux-132ec92f3f70fe365c1f4b8d46e66cf8a2a16880.tar.xz | |
x86, msr: Add rd/wrmsr interfaces with preset registers
native_{rdmsr,wrmsr}_safe_regs are two new interfaces which allow
presetting of a subset of eight x86 GPRs before executing the rd/wrmsr
instructions. This is needed at least on AMD K8 for accessing an erratum
workaround MSR.
Originally based on an idea by H. Peter Anvin.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
LKML-Reference: <1251705011-18636-1-git-send-email-petkovbb@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/lib/Makefile')
| -rw-r--r-- | arch/x86/lib/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 07c31899c9c2..b59c0647d809 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -8,6 +8,7 @@ lib-y := delay.o lib-y += thunk_$(BITS).o lib-y += usercopy_$(BITS).o getuser.o putuser.o lib-y += memcpy_$(BITS).o +lib-y += msr-reg.o ifeq ($(CONFIG_X86_32),y) obj-y += atomic64_32.o |