Re: [Xen-devel] [PATCH v4 02/16] Document ioemu Linux stubdomain protocol

[Jason Andryuk <jandryuk@xxxxxxxxx>]

On Tue, Jan 21, 2020 at 4:08 PM Marek Marczykowski-Górecki
<marmarek@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Mon, Jan 20, 2020 at 01:54:04PM -0500, Jason Andryuk wrote:
> > On Tue, Jan 14, 2020 at 9:41 PM Marek Marczykowski-Górecki
> > <marmarek@xxxxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > <snip>
> >
> > > +
> > > +Limitations:
> > > + - PCI passthrough require permissive mode
> > > + - only one nic is supported
> >
> > Why is only 1 nic supported?  Multiple were supported previously, but
> > peeking ahead in the series,
>
> This is mostly limitation of stubdomain side, not toolstack side.
> Startup script setup eth0 only.

I peeked the script, and it looks like the nic ifname= sed expression
only handles one nic.  Since dmargs is now an array, it should to
handle multiple.

Anyway, there doesn't seem to be an hard limitation.

> > script=/etc/qemu-ifup is no longer
> > specified.
>
> Yes, that's to allow -sandbox ...,spawn=deny inside stubdomain.
> The equivalent actions are handled by listening for qmp events.

Ah, okay.  Yeah, that's a good idea.

Thanks,
Jason

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