[vfio-users] Code 43 for GTX 660

[Philip Abernethy]

I just noticed I overlooked the fact that my root port is in the same IOMMU
group as the card. From the tutorials I gather that I should always pass a
complete group to the VM, however the tutorials fall short of how to do it
in such a case.
I'm not getting errors that the group wasn't viable.

Current setup:
/sys/kernel/iommu_groups/1/devices/0000:00:01.0
/sys/kernel/iommu_groups/1/devices/0000:01:00.0
/sys/kernel/iommu_groups/1/devices/0000:01:00.1

00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor PCI Express x16 Controller (rev 06) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 26
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: f6000000-f70fffff
Prefetchable memory behind bridge: 00000000e0000000-00000000e9ffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

01:00.0 VGA compatible controller: NVIDIA Corporation GK106 [GeForce GTX
660] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 2871
Flags: fast devsel, IRQ 16
Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=128M]
Memory at e8000000 (64-bit, prefetchable) [size=32M]
I/O ports at e000 [size=128]
Expansion ROM at f7000000 [disabled] [size=512K]
Kernel driver in use: vfio-pci
Kernel modules: nouveau, nvidia

01:00.1 Audio device: NVIDIA Corporation GK106 HDMI Audio Controller (rev
a1)
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 2871
Flags: fast devsel, IRQ 17
Memory at f7080000 (32-bit, non-prefetchable) [size=16K]
Kernel driver in use: vfio-pci
Kernel modules: snd_hda_intel

/etc/modprobe.d/vfio-pci.conf:
options vfio-pci ids="10de:11c0,10de:0e0b"

IOMMU-related kernel params:
intel_iommu=on iommu=pt intel_iommu=igfx_off

Intel IGD is set as primary graphics device in the UEFI setup.
I'm still getting error 43.
--
Chais
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