Re: [Qemu-devel] Using virtio for inter-VM communication

[Paolo Bonzini]

Il 15/06/2014 08:20, Jan Kiszka ha scritto:
> > > I think implementing Xen hypercalls in jailhouse for grant table and
> > > event channels would actually make a lot of sense.  The Xen
> > > implementation is 2.5kLOC and I think it should be possible to compact
> > > it noticeably, especially if you limit yourself to 64-bit guests.
> At least the grant table model seems unsuited for Jailhouse. It allows a
> guest to influence the mapping of another guest during runtime. This we
> want (or even have) to avoid in Jailhouse.

IIRC implementing the grant table hypercalls with copies is inefficient 
but valid.

Paolo