On 3/23/09 11:46 PM, "Shane Ginnane" <sginn...@isi.com.au> wrote:

>> Interesting, but requires Xen or KVM to work in current form, and relies
> on
>> being able to just pass through instructions to the base hardware for
> things
>> that don't require privileged ops.
> 
> I don't see that as an intrinsic problem.
> Remove z/VM from the equation and ... ?

Let's just say its an enourmous amount of effort to do right, and in this
case, good enough isn't good enough.
 
> No doubt Mark is correct re the usability of the z KVM at present, but one
> would imagine that has to improve.

I doubt it. There is a reliable low-cost solution already available, and one
that does a far better job of providing resource management knobs. I know I
wouldn't pay anyone to bother with zKVM. It's not designed to scale in the
way we need it to work on Z, and I really don't much care for the way the
KVM developers operate wrt NIH patches. 

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