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RE: [Xen-devel] RE: xen-unstable pci passthrough

To: <djmagee@xxxxxxxxxxxx>, "'Han, Weidong'" <weidong.han@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] RE: xen-unstable pci passthrough
From: "Teo En Ming (Zhang Enming)" <enming.teo@xxxxxxxxxxxxxxx>
Date: Thu, 3 Sep 2009 12:12:14 +0800
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Dear Magee,

 

Any luck with the Intel vga passthrough patches to xen 3.5-unstable on Intel DQ45CB with extra PCI-e x16 graphics card? Are you using pvops dom 0 kernels 2.6.30-rc3 and 2.6.31-rc6?

 

Regards,
 

Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)

Technical Support Engineer

Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore
529541

Republic of Singapore
Mobile: +65-9648-9798
MSN: teoenming@xxxxxxxxxxx


From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of djmagee@xxxxxxxxxxxx
Sent: Wednesday, September 02, 2009 6:59 PM
To: Han, Weidong; xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-devel] RE: xen-unstable pci passthrough

 

That was the problem, thank you.  Now I’ll work on testing the gfx-passthrough patches.

 

From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Han, Weidong
Sent: Tuesday, September 01, 2009 6:55 PM
To: djmagee@xxxxxxxxxxxx; 'xen-devel@xxxxxxxxxxxxxxxxxxx'
Subject: [Xen-devel] RE: xen-unstable pci passthrough

 

I suspect you are using old hvm config file. The device_model is changes in config file.

 

in old config file:

# New stuff
device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'

 

in new config file:

# Device Model to be used
device_model = 'qemu-dm'

 

Pls check it, and use the latest config file to create guest.

 

Regards,

Weidong

 


From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of djmagee@xxxxxxxxxxxx
Sent: 2009
92 6:40
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] xen-unstable pci passthrough

I have not been able to passthrough any PCI devices using the latest xen-unstable.  I have a DQ45CB, and have successfully passed devices to guests using 3.4.1.

 

The latest c/s in my copy of xen-unstable is 20145.  I just started playing around with unstable yesterday, so I can’t tell you if earlier revisions worked.  I’ve tried with various dom0 kernels, the current 2.6.18.8-xen branch, a xenified 2.6.29.6, and a pvops 2.6.31-rc6, and in every case I get the same error.  I’ve tried both putting pci= in the config file, and hot-adding the device using xm pci-attach.  In every case, the xm command (either create or pci-attach) fails with the message “Error: Timed out waiting for device model action”.  The guests in every case are HVM guests, some flavors of Windows, as well as the Knoppix 5.3.1 DVD.

 

The relevant xm dmesg output is:
(XEN) PCI add device 00:1b.0

(XEN) [VT-D]iommu.c:1292:d0 domain_context_unmap:PCIe: bdf = 0:1b.0

(XEN) [VT-D]iommu.c:1178:d0 domain_context_mapping:PCIe: bdf = 0:1b.0

(XEN) [VT-D]io.c:284:d0 VT-d irq bind: m_irq = 37 device = 3 intx = 0

(XEN) [VT-D]iommu.c:1292:d0 domain_context_unmap:PCIe: bdf = 0:1b.0

(XEN) [VT-D]iommu.c:1178:d0 domain_context_mapping:PCIe: bdf = 0:1b.0

 

And the messages from qemu-log:

dm-command: hot insert pass-through pci dev

hot add pci slot -2 exceed.

 

Please let me know what else I need to supply to help resolve this problem.  If I need to enable debugging messages, let me know the best way to do this.

 

Doug Magee

djmagee@xxxxxxxxxxxx

 

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