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Re: [Xen-devel] [PATCH v16 01/10] x86: add generic resource (e.g. MSR) access hypercall

>>> On 25.09.14 at 21:57, <andrew.cooper3@xxxxxxxxxx> wrote:
> On a different note, you need to enforce a maximum resource_op.nr of
> something rather low to (16/32 perhaps?) to prevent a toolstack asking
> for 0xffffffff non-preemptible operations.

I'd start out as low as we can, i.e. right now just 2 (write followed
by read). Any increase of the threshold will then need proper (and
trackable) reasoning.


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