[Xen-users] Re: Exporting the graphics card to a domU

["Christopher Isip" <cmisip@xxxxxxxxx>]

On Thu, Jun 5, 2008 at 6:01 PM, Christopher Isip <cmisip@xxxxxxxxx> wrote:

 I have a dual core mythfrontend only sytem with an nvidia graphics card.  There are no other video cards in the machine.  I am thinking of hiding the video card from dom0 so a domU could use it for mythfrontend output.  Is this possible?

I realize that the dom0 kernel needs to boot without a graphics card.  I am thinking If I need to do any dom0 work, I can  ssh to it or perhaps use vnc. Having mythtv encapsulated in a domU allows me  to upgrade without risk in  the future.  I already have the mythtv backend running happily in another machine in a domU.

Furthermore, I plan to add a domU in this machine that runs Windows XP so I can use a usb printer as a samba printer.  The printer is not supported in linux.   I still dont know how I would be able to do this as from what I've read, you cant export a usb port to a xen domain.  I have the following in /sbin/lspci:

00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 02)
00:19.0 Ethernet controller: Intel Corporation 82562V-2 10/100 Network Connection (rev 02)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation 82801IR (ICH9R) LPC Interface Controller (rev 02)
00:1f.2 RAID bus controller: Intel Corporation 82801 SATA RAID Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300 LE] (rev a1)

Which makes me think that I could pciback just one of the usb controllers to Windows XP and another one to the Mythtv domU (because I have a usb remote).

Is this going to work?

Thanks
Chris

Oh yeah, the audio device would have to be exported as well.

Thanks
Chris

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