Re: New CPUID/MSR driver; virtualization hooks

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Zachary Amsden wrote:
> Or implement anything useful at all ... perhaps it might be useful to
> simply wrap them with an -ENOSYS in some cases.
>
> Rusty, Jeremy. Chris - any feedback on MSR support?

I've looked at hpa's patch a bit, but I don't quite get what the point
is yet.  Is it that rdmsr/wrmsr can use multiple random registers, so
its necessary to haul them all around?  And that cpuid might use more
beyond the current eax-edx?

Xen will trap and emulate any rd/wrmsr instructions, so I don't think it
needs anything beyond native support.

    J
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