> Hello all,
> I have already use xen for about a year. I use recently released Opensuse
> 11.3 (use Xen 4.0) for my experiment. I want to run 3D test in HVM(windows
> xp), so I want to use VGA passthrough technology. But there is something not
> work properly.
> I google a lot of time, it says, I/O virtualisation should be enabled,
but I can solve it.
> I run "xm dmesg" command, in the output, there is "(Xen) I/O virtualisation
> disabled", what I should do to enable I/O virtualisation.
> Can anyone help me?
For I/O virtualization you need two things:
1) Your processor must support it. You need to look up the specifications of
the processor and make sure VTd or IOMMU is supported on the processor.
2) Your BIOS must support it. There will be a setting in the BIOS, probably
close to the standard Virtualization settings, for enabling I/O Virtualization
(VTd, IOMMU).
Check these things and make sure they're configured correctly.
-Nick
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