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Re: [Xen-devel] [PATCH 4/7] ioreq: allow registering internal ioreq server handler

On Wed, Aug 21, 2019 at 06:35:15PM +0200, Paul Durrant wrote:
> > -----Original Message-----
> > From: Roger Pau Monne <roger.pau@xxxxxxxxxx>
> > Sent: 21 August 2019 15:59
> > To: xen-devel@xxxxxxxxxxxxxxxxxxxx
> > Cc: Roger Pau Monne <roger.pau@xxxxxxxxxx>; Paul Durrant 
> > <Paul.Durrant@xxxxxxxxxx>; Jan Beulich
> > <jbeulich@xxxxxxxx>; Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>; Wei Liu 
> > <wl@xxxxxxx>
> > Subject: [PATCH 4/7] ioreq: allow registering internal ioreq server handler
> > 
> > Provide a routine to register the handler for an internal ioreq
> > server. Note the handler can only be set once.
> I'd prefer hvm_set_ioreq_handler() and some sort of guard to prevent enabling 
> of an internal server with no handler (probably in the previous patch) would 
> be prudent, I think.

Right, I will add it.

> Also, why the set-once semantic?

Well, I didn't have the need to change the handler of internal ioreq
servers (vPCI) so I've coded it that way. If you think it's better to
allow run time changes of the handler that's fine, I just didn't have
the need for it given the current use-case and I thought it would be

Thanks, Roger.

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