Re: Standardizing an MSR or other hypercall to get an RNG seed?

Nakajima, Jun
2014-09-18T17:13:05Z

On Thu, Sep 18, 2014 at 9:36 AM, KY Srinivasan <kys@microsoft.com> wrote:
>
> I am copying other Hyper-V engineers to this discussion.
>

Thanks, K.Y.

In terms of the address for the MSR, I suggest that you choose one
from the range between 40000000H - 400000FFH. The SDM (35.1
ARCHITECTURAL MSRS) says "All existing and
future processors will not implement any features using any MSR in
this range." Hyper-V already defines many synthetic MSRs in this
range, and I think it would be reasonable for you to pick one for this
to avoid a conflict?

--
Jun
Intel Open Source Technology Center