[Xen-devel] RE: Some questions of VT-D graphic passthrough
Answers inline below….
I heard the good news you published from Xen Maillist.That
really inspired me. Recently i was working on vt-d graphic passthrough
experiment. That was a real tough job for me. I faced some problems that you
may also met before. So i hope you can give me any advises or informaitons.
Any reply appreciated!
HardWare: Q35 matherboard + PCIE NVIDIA 9400 + PCI
ATI R128 + IGD Intel
Two Monitors connected with respective
OS : Domain0 (Gentoo X86_64 2.6.28)
DomainU (Ubuntu i386 / windows xp /
At first ,I assumed the Matherboard integrated graphic card for Domain0 then
passthrough the PCIE NVIDIA graphic card for DomainU.
But My Matherboard cann't support those two cards work together.
And Everytime i use the PCIE card render for Domain0, the
VT-D can't be Enable Because of the RMMR incorrect.
Use this work around and (/* the whole “if”
section */) and recompile Xen
I think VT-d is needed for this to work …
Considered that reason , the PCIE card was aborted in my experiment.
Now I use the integrated card as the primary card ,the ATI PCI graphic card as
Now i face the problem is
that the DomainU asigned the ATI card can't displaied on the Monitor connected
with the ATI card.
From you information on Xen maillist,
you passthrough the PCIE NVIDIA card to
DomainU --> boot from console --> setup the proper driver for that card
--> startx --> then the DomainU display on the second Monitor
Any other works ?
Is that right?
You didn't change any source codes. The whole process are works about
I tried install a R128 driver in DomainU for the ATI card and Modified the
xorg.conf(/etc/X11/xorg.conf) to tell the DomainU use the ATI card do render
whatever i do the DomainU always stay on the same screen.
Now i have none idea for the next step .
Hope you can give me some help.
Thanks so much !
Best regards ！
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