Date: Tue, 30 Oct 2012 00:51:32 -0500 (CDT) From: Bryan Venteicher <bryanv@daemoninthecloset.org> To: sbruno@freebsd.org Cc: freebsd-virtualization@freebsd.org Subject: Re: dev/virtio stuff Message-ID: <1357075626.557.1351576292413.JavaMail.root@daemoninthecloset.org> In-Reply-To: <1351547382.3063.21.camel@powernoodle.corp.yahoo.com>
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Hi, ----- Original Message ----- > From: "Sean Bruno" <seanbru@yahoo-inc.com> > To: freebsd-virtualization@freebsd.org > Sent: Monday, October 29, 2012 4:49:42 PM > Subject: dev/virtio stuff > > So ... I see we have virtio nowish. I've started my hackery to make > some man(4) pages for this, but have some questions. Doing some raw > QEMU things, I can't quite see how to get the virtio blk and net > devices working. > There are already virtio(4) man pages, but it looks like they didn't get MFC to 9. > I've loaded the virtio drivers as modules. Is this not going to work in > this case? I don't see the virtio versions of disk devices in /dev > so I'm not sure what the problem here is. > > http://people.freebsd.org/~sbruno/virtio.txt >> FreeBSD 7.5-YAHOO-20121028 #0 ybsd_9@324991: Sun Oct 28 22:08:46 UTC 2012 >> kernel@yahoo-inc.com:/sys/amd64/compile/YAHOO amd64 I assume this is 9-STABLE'ish? >> virtio_pci0: <VirtIO PCI Block adapter> port 0xc200-0xc23f irq 11 at device 4.0 on pci0 >> vtblk0: <VirtIO Block Adapter> on virtio_pci0 >> virtio_pci0: host features: 0x41000014 <NotifyOnEmpty,DiskGeometry,MaxNumSegs> >> virtio_pci0: negotiated features: 0x14 <DiskGeometry,MaxNumSegs> >> vtblk0: 4096MB (8388608 512 byte sectors) The VirtIO block gets probed and attached correctly, and right after the last printf, hands off to disk_create(9) to create the GEOM plumbing and device. VirtIO block devices get created as vtbdX, not as ad, ada, or da. Can you see if g_disk_create() gets called (with flag==EV_CANCEL)? What does a verbose boot show? Bryan > > Sean > > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to > "freebsd-virtualization-unsubscribe@freebsd.org" >
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