Re[4]: [Xen-devel] [xen 3.5-unstable] passthrough of pci USB card fails

[Sander Eikelenboom <linux@xxxxxxxxxxxxxx>]

Thanks, the "reassign_resources" made the domU boot without complaining.

Seems I was misguided by 
http://article.gmane.org/gmane.comp.emulators.xen.devel/57212
in that reassing_resources was deprecated.

Hope it works now ! :-)

Thx many many times !

-- Sander

>> module          /boot/vmlinuz-2.6.18.8-xen root=/dev/sda1 ro 
>> log_buf_len=65662 guestdev=01:00.0,01:00.1,01:00.2
> I didn't try the parameter myself, but I think you also need to add the 
> parameter "reassign_resources".
> And please make sure your .config has CONFIG_PCI_REASSIGN=y and 
> CONFIG_PCI_GUESTDEV=y.

> Thanks,
> -- Dexuan

> -----Original Message-----
> From: Sander Eikelenboom [mailto:linux@xxxxxxxxxxxxxx] 
> Sent: 2009?7?24? 15:44
> To: Cui, Dexuan
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re[2]: [Xen-devel] [xen 3.5-unstable] passthrough of pci USB card 
> fails

> Hello Dexuan,

> From what i read, i should replace both pciback and reassigndev with the
> new guestdev parameter. And it should accept the same syntax as
> reassigndev.

> So i tried to boot my Dom0 with:
> module          /boot/vmlinuz-2.6.18.8-xen root=/dev/sda1 ro
> log_buf_len=65662 guestdev=01:00.0,01:00.1,01:00.2

> It seizes the pci devices, but creating the HVM domU still fails with:
> Error: pci: 0000:01:00.2: non-page-aligned MMIO BAR found.

> Any more things I could try ?

> -- Sander


> Attachted:
> xm info
> xm dmesg
> dmesg
> xend.log
> lspci -vvvknn





> Wednesday, July 22, 2009, 5:02:13 AM, you wrote:

>> The boot parameters changed.

>> I think you should have a look at
>> http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev=reassign_resources 

>> -- Dexuan

>> -----Original Message-----
>> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
>> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Sander 
>> Eikelenboom
>> Sent: 2009?7?21? 20:17
>> To: xen-devel@
>> Subject: [Xen-devel] [xen 3.5-unstable] passthrough of pci USB card fails

>> Hi,

>> I'm trying to passthrough a pci USB card to a DomU (HVM).
>> Although pciback seems to seize the device with all functions as seen in
>> the dmesg output, they don't appear using "xm pci-list-assignable-devices".

>> When trying to passthrough to a HVM (with VT-D enabled) it stops creating
>> the domain and complains about:
>> VmError: pci: 0000:01:00.2: non-page-aligned MMIO BAR found.

>> From what I read, booting the xen hypervisor with "reassigndev=" should
>> solve the non-page-aligned issues, but apparently it doesn't in this case.
>> Also added them to xend-pci-persmissive.

>> Is there another boot-option/way to reassign the device ?

>> Regards,

>> Sander


>> Attached is the output from:
>> xm info
>> xm dmesg
>> dmesg
>> lspci -vvvnnk
>> ls /sys/bus/pci/drivers/pciback
>> /var/log/xen/xend log with the start of a HVM domain
>> winhvm.cfg (config file of the hvm domain)








-- 
Best regards,
 Sander                            mailto:linux@xxxxxxxxxxxxxx


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