Re: [Xen-devel] HVM hypercalls

To:	Ky Srinivasan <ksrinivasan@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] HVM hypercalls
From:	Keir Fraser <keir@xxxxxxxxxxxxx>
Date:	Fri, 15 Dec 2006 19:54:28 +0000
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On 15/12/06 18:46, "Ky Srinivasan" <ksrinivasan@xxxxxxxxxx> wrote:

> Currently, only a very small subset of the hypercalls are exposed to HVM
> guests. Was this set arrived at based on what was required to host
> para-virtualized  drivers? Or are there other considerations that governed
> this decision. Specifically, would there be any objections to opening up more
> hypercalls to HVM guests.

They need auditing one-by-one, and also we have to worry about 32-on-64
compatibility issues (which will be helped by the PV PAE-on-64 work by Jan
Beulich). We do plan to broaden the supported set of hypercalls (memory_op
for example).

 -- Keir

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Re: [Xen-devel] HVM hypercalls