Il 06/12/2013 13:55, Wei Liu ha scritto:
On Fri, Dec 06, 2013 at 01:49:51PM +0100, Fabio Fantoni wrote:
Il 06/12/2013 12:57, Wei Liu ha scritto:
On Fri, Dec 06, 2013 at 12:51:34PM +0100, Fabio Fantoni wrote:
Il 06/12/2013 12:31, Wei Liu ha scritto:
On Fri, Dec 06, 2013 at 12:28:00PM +0100, Fabio Fantoni wrote:
[...]
Thanks for reply, where is the latest versions of your libxl patch
for virtio-net / virtio-blk support?
I found only the old version of 2011 on wiki.
Is this the latest and I must updated it to be working on xen
unstable before testing it?
That is not needed if you want to use virtio-net.
Just specify 'model=virtio-net-pci' in you nic spec then you're fine.
Wei.
I did a fast test with virtio nic, xen platform disabled
(xen_platform_pci=0 plus konrad patch) and qemu crashed on ubuntu
Saucy hvm domU start with this error on qemu log:
xen_ram_addr_from_mapcache, could not find 0x7f34c08afff8
I tried both with/without pci=nomsi, same result.
Then it seems that with virtio net there is a further problem.
Tell me if you need other tests/details and I'll post them.
So the same config works with other emulated nic (say, the default
rtl8139 / e1000)?
Thanks for any reply.
Yes, I retried all cases removing only virtio net and no qemu crash.
And Konrad's patch did prevent kernel from unplugging the emulated
devices?
I used virtio-net-pci in EFI several days ago it worked fine, so it is
possible that there's a bug in kernel.
If there's really a regression I would not be too surprise because
nobody is actively using it so we're not actively testing this feature.
You can try xen_emul_unplug=never in *guest kernel command line* to see
if it changes anything.
Wei.
I tried 2 cases with xen_emul_unplug=never:
- with xen platform disabled (xen_platform_pci=0 plus konrad patch) and
pci=nomsi
- with xen_platform_pci=1 and without pci kernel parameter
on both cases qemu crash with same error:
xen_ram_addr_from_mapcache, could not find 0x7fdecf624968
On your virtio net test you have added only 'model=virtio-net-pci' on
vif line of domU's xl cfg or you did other changes?
Thanks for any reply.
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