diff options
| author | Borislav Petkov <petkovbb@googlemail.com> | 2009-08-31 03:50:09 -0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-08-31 18:14:26 -0400 |
| commit | 132ec92f3f70fe365c1f4b8d46e66cf8a2a16880 (patch) | |
| tree | f8e3f3ab5541f583030b0bcd5f3f81ca338f77a2 /arch/x86/include/asm/io_64.h | |
| parent | 366d19e181be873c70f4aafca3931d77d781ccd7 (diff) | |
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/include/asm/io_64.h')
0 files changed, 0 insertions, 0 deletions