If this isn't the right place to ask, any pointers to the correct place are appreciated... I'm trying to see if I can get PCI passthrough working for a video capture card (Hauppauge Colossus 1x PCIe) under a Windows XP guest (32 -bit). Things appear to be somewhat working (Windows is seeing the device, the drivers successfully installed, and device manager indicates everything is working) however when I fire up the capture application, it is not able to find the device despite Windows recognizing it (no errors, it just doesn't 'see' any installed capture devices). There is also a secondary capture/viewer application that won't even install due to not being able to find a capture card. Since that wasn't the behavior when running it natively under Windows, I'm assuming that the issue is related to PCI passthrough but it's difficult to be certain since I'm not seeing any errors beyond the capture applications not being able to find the device. Some details on my setup: i7-2600 running on a Q77 motherboard with VT -d enabled in bios. I'm running Debian Linux (testing) with qemu-kvm 1:2.4+dfsg-3 and am passing intel_iommu=on as a kernel parameter on boot. These are the main details I can think of to share, but if there is any additional info that would be useful, please let me know and I'll be happy to provide it. Having read through a few different posts around the 'net on how to do PCI passthrough (pretty much everything I've found was discussing GPUs, and almost always on a different distro), the only thing that jumps out as a potential problem is that the card in question does not appear to support FLR. However, I'm not clear if that's an absolute requirement for PCI passthrough or something that is specific to GPU support? Beyond that, I'm at a loss as to what the issue could be... Thanks, Phil -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
