Re: HVM virtualization?

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

On Sun, Nov 01, 2020 at 11:38:07AM -0500, Greg Troxel wrote:
> 
> Manuel Bouyer <bouyer%antioche.eu.org@localhost> writes:
> 
> > On Sun, Nov 01, 2020 at 10:40:17AM -0500, Greg Troxel wrote:
> >> It would work around it, not solve it, but yes getting to a functional
> >> state is really the goal.
> >
> > Having a dmesg of such a system would help.
> 
> True; will see if I can get that.
> 
> > Maybe the qemu in the stub domain is not built with DMA capabilities ?
> 
> No, this is a case of NetBSD working badly, and many Linux flavors,
> FreeBSD, OpenBSD all working fine.

All of them have PV drivers out of the box, so they won't use qemu for
disks and network.


> 
> >> I realize that's a good workaround, but I also wonder if anyone else has
> >> tried 9-stable GENERIC as HVM with a dom0 that is using stub domains for
> >> qemu.
> >> 
> >> (It seems obvious that NetBSD dom0s do not use stub domains.)
> >
> > I tried with xen 4.8 but gave up. It was too fragile.
> 
> Do you mean "gave up with pure HVM", or "pure HVM with stub domains"?

pure HVM with stub domains. pure HVM worked fine with 4.8, as it does
with 4.11 and 4.13

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