[CentOS-virt] Setting up a pci passthrough device

Ken Bass kbass at kenbass.com
Mon Feb 6 18:05:43 EST 2012

Take a look at http://wiki.xensource.com/xenwiki/VTdHowTo

Two things in particular about PCI passthrough:

- Only devices with FLR capabilities are supported.
- Some motherboards are buggy. They advertised that they support Vt-d 
but do not correctly handle it (those with a broken ACPI DMAR table)

I think lspci -vv will tell you if the device supports FLR. It will show 
'FLReset+' I believe.

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