Re: [Xen-devel] Re : Re : Re : Re : Re : Re : Re : Re: Patches for VGA-Passthrough XEN 4.2 unstable

[Jamesffs <javiapple@xxxxxxxxxxx>]

Hi Tobias, thank you for the answer.

The * on my cfg appear because I used bold letter there.(They dont exists on
my real cfg)

In order to install the driver I need to see the graphic card in my Windows
DomU, so I must passed through the card first right? 
So I used the options 'pci =  [ '01:00.0' ]' and 'gfx_passthru=1' to
passthru the card, but when I do this (after bind the device with pci-stub)
I just can see (through VNC) a screen with qemu console and after a while
the DomU crash. When u said before that it is not possible to see the DomU
with VNC I thought that I should use a monitor attached to the graphic card
but Im not sure how to do that.

Anyway Im start thinking that the DomU crash is due to VT-d is not enabled
properly, after using the parameter iommu=1 i have the following output in
xl dmesg:

(XEN) I/O virtualisation enabled
.
.
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation not enabled.
(XEN) Intel VT-d Interrupt Remapping not enabled. 
(XEN) Intel VT-d Shared EPT table not enabled.

So maybe the problem is there... 

Well thank you for your help


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