Re: DOM0 SMP - what remains to be done?

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Wed, Jun 20, 2018 at 10:04:30AM +0200, Jaromír Dole?ek wrote:
> $subj pretty much says it all. In 2012 there was this message in port-xen/42441:
> 
> > From: Jeff Rizzo <riz%netbsd.org@localhost>
> > To: gnats-bugs%netbsd.org@localhost
> > Subject: Re: port-xen/42441
> > Date: Sat, 04 Feb 2012 14:31:22 -0800
> 
> > SMP support has been enabled for Xen DOMU in -current, and will be in
> > NetBSD 6.0.  DOM0 support is there, but not enabled yet, as there are
> > still some issues with it.
> 
> So, is anyone aware what things need to be fixed for this to be
> enabled? Perhaps it would make sense to add a subpage on the port-xen
> wiki if there is list of things to do.

I had a note about xen_shm_machdep.c ... but I don't remember the
details. The lists probably needs something better than splvm()
protection.
It looks like xenevt.c and xengnt.c are mp-safe.

In xenbus_probe.c the tsleep on xenstored_ready looks suspicious.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--