on 17/05/2008 13:12 Kostik Belousov said the following:
On Sat, May 17, 2008 at 11:13:52AM +0300, Andriy Gapon wrote:
It seems that rdmsr instruction can be executed only at the highest
privilege level and thus is not permitted from userland. Maybe we should
provide something like Linux /dev/cpu/msr?
I don't like interface of that device, I think that ioctl approach would
be preferable in this case.
Something like create /dev/cpuN and allow some ioctls on it:
ioctl(cpu_fd, CPU_RDMSR, arg).
What do you think?
I believe ports/sysutils/devcpu is what you need. In fact, I think this
ought to be committed to the base. I do not know why Stas did not asked
for this, at least at public.
Thanks a lot! This is exactly it.
I agree, this would be quite useful in the OS.
--
Andriy Gapon
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