Re: [Xen-devel] good progress on pci vga passthrough in xen-3.4-rc1

[wei zhou <weizhou.sir@xxxxxxxxx>]

Hi Tim :
    I didn't pay attention to the PV DomainU. I always use the HVM or Windows OS as the DomainU in my experiments. You remaid me  the PV GuestOS may make that work easily.
But i still have some questions :
    The PV DomU supported the VT-D / IO virtualization ?
     Did i add the command line "pci = ['xx:xx.x']" in config file of PV DomU ?

For you questions :

Do you have pciback=”” kernel cmdline for Dom0.

yes , I added  " pciback.hide = (xx:xx.x) " cmdline in " module   ................"

I also added the "iommu = 1 vtd = 1" in " kernel ....................... "

What does lspci –vvv show for the DomU ?

 

using the lspci -vvv cmd, i could find the NVIDIA card passed through in DomU HVM.

But i can't use that for rendering X-window .

Please also include your X server log file for DomU and your Dom0 Kernel output.

Presently , My system doesn't work . I will attach those files next time.

Thanks so much .

wei

2009/4/22 Tim Moore <timothy.moore@xxxxxxxxxxx>

Hi Wei,

 

Yes, DomU should be PV.

 

Any Xen-enabled kernel will be OK for DomU.

 

Do you have pciback=”” kernel cmdline for Dom0.

 

What does lspci –vvv show for the DomU ?

 

Please also include your X server log file for DomU and your Dom0 Kernel output.

 

Ta

 

Tim

 

---

From: wei zhou [mailto:weizhou.sir@xxxxxxxxx]
Sent: 21 April 2009 09:29

To: Tim Moore
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] good progress on pci vga passthrough in xen-3.4-rc1

 

 Hi Tim :

      I am still working about VT-D Graphic pass through experiment. Even with your guys' useful helps, I still cann't make the DomainU displaied on the second screen connected with the graphic card passed through.
      You said you used the "DomU: 2.6.26-1-xen-amd64 (deb lenny shipped)" as DomainU. you also said that " Also confirmed that this is NOT possible under a HVM or running Windows in a DomU, ".

      That means the DomainU should be Para-Virtualization in your experiment of VT-D graphic pass through .
      How do i get the 2.6.26-1-xen-amd64 (deb lenny shipped) DomainU for testing?

Thanks

Wei

2009/4/15 Tim Moore <timothy.moore@xxxxxxxxxxx>

 

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--
Best regards ！
wei zhou
E-mail: weizhou.sir@xxxxxxxxx

-- 
Best regards ！
William zhou
E-mail: weizhou.sir@xxxxxxxxx

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