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cpu0
2006 Oct 06
3
Writing MSRs from Domain0
Hello,
I recently tried Xen 3.0.3-testing on my 2x Opteron-244 SMP machine.
Everything works well exept one detail, which is not unimportant to me:
the powernow-k8 driver fails to switch frequencies. A closer look on the
powernow-k8 source reveals, that some MSR write operations seem to be
without any effect. A rdmsr() before and after the wrmsr() call reveals
that no real change on the register