Hello Alex, thanks for your efforts! Maybe, you already know that I'm suffering the same problem :-( with a GA-990XA-UD3 (990X chipset). On Mon, 04 Jun 2012 21:44:05 -0600 Alex Williamson <alex.williamson@xxxxxxxxxx> wrote: [...] > I have a setup with an AMD 990FX system and a spare PVR-350 card that I > installed to reproduce. The sad answer is that it's nearly impossible > to assign PCI devices on these systems due to the aliasing of devices > below the PCIe-to-PCI bridge (PCIe devices are much, much easier to > assign). If you boot with amd_iommu_dump, you'll see some output like > this: > > AMD-Vi: DEV_ALIAS_RANGE devid: 05:00.0 flags: 00 devid_to: 00:14.4 > AMD-Vi: DEV_RANGE_END devid: 05:1f.7 here: AMD-Vi: DEV_ALIAS_RANGE devid: 06:00.0 flags: 00 devid_to: 00:14.4 AMD-Vi: DEV_RANGE_END devid: 06:1f.7 This means according to your description, the following devices have to be unbound here, too (0000:06:07.0 is the device I want to passthrough): 0000:00:14.0 -> ../../../../devices/pci0000:00/0000:00:14.0 0000:00:14.1 -> ../../../../devices/pci0000:00/0000:00:14.1 0000:00:14.2 -> ../../../../devices/pci0000:00/0000:00:14.2 0000:00:14.3 -> ../../../../devices/pci0000:00/0000:00:14.3 0000:00:14.4 -> ../../../../devices/pci0000:00/0000:00:14.4 0000:00:14.5 -> ../../../../devices/pci0000:00/0000:00:14.5 0000:06:07.0 -> ../../../../devices/pci0000:00/0000:00:14.4/0000:06:07.0 These are the following additional devices: 00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller (rev 42) 00:14.1 IDE interface: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 IDE Controller (rev 40) (prog-if 8a [Master SecP PriP]) 00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) (rev 40) 00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC host controller (rev 40) 00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge (rev 40) (prog-if 01 [Subtractive decode]) 00:14.5 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI2 Controller (prog-if 10 [OHCI]) Among them is the sound device and the USB device - no good idea to disable them on a desktop. Disabling 00:14.1 seems to be possible (rmmod pata_atiixp works), but I'm getting errors after rebooting the system (the filesystems haven't been cleanly unmounted during shutdown). Anyway, I would have tested it, but I'm getting a compile error while compiling qemu. It complains about missing pci/header.h while processing hw/vfio_pci.c:49:24. I can't find any pci/header.h. Where should it come from? [...] > The downside is that VFIO is strict about > multifunction devices supporting ACS to prevent peer-to-peer between > domains, so will require all of the 14.x devices to be bound to pci-stub > as well. On my system, this includes an smbus controller, audio device, > lpc controller, and usb device. If AMD could confirm this device > doesn't allow peer-to-peer between functions, we could relax this > requirement a bit. Please Joerg, could you take a look at this problem? Thanks, kind regards, Andreas -- 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
