[vfio-users] passthrough not working.

[redhat at vanvoorn.com]

Dear vfio-users,

I am having trouble passing through my GTX 660 with KVM.

When using SeaBIOS, I always get "device does not support requested 
feature x-vga". With OVMF, no matter what vbios I pass through, I get no 
output.

Could you please take a look at it since I have been working on it for a 
while?

With kind regards,

Peter Alias Mazhive.

Below is my specs, the exact error, and lspci info. Please let me know 
if you need anything else.


##########################
fedora 26 4.13.5-200.fc26.x86_64

Mobo: ASUS: Maximus viii hero
bios : 3201x64
ASUS : GTX660DC2O2GD5 in the first slot  a pciex16x8

###########################
#  virt-manager error
########################

Error starting domain: internal error: qemu unexpectedly closed the 
monitor: 2017-10-18T00:46:08.309736Z qemu-system-x86_64: -device 
vfio-pci,host=01:00.0,x-vga=on,id=hostdev0,bus=pci.0,addr=0x2: vfio 
error: 0000:01:00.0: failed getting region info for VGA region index 8: 
Invalid argument
device does not support requested feature x-vga

Traceback (most recent call last):
   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in 
cb_wrapper
     callback(asyncjob, *args, **kwargs)
   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 125, in 
tmpcb
     callback(*args, **kwargs)
   File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 82, 
in newfn
     ret = fn(self, *args, **kwargs)
   File "/usr/share/virt-manager/virtManager/domain.py", line 1505, in 
startup
     self._backend.create()
   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1039, in 
create
     if ret == -1: raise libvirtError ('virDomainCreate() failed', 
dom=self)
libvirtError: internal error: qemu unexpectedly closed the monitor: 
2017-10-18T00:46:08.309736Z qemu-system-x86_64: -device 
vfio-pci,host=01:00.0,x-vga=on,id=hostdev0,bus=pci.0,addr=0x2: vfio 
error: 0000:01:00.0: failed getting region info for VGA region index 8: 
Invalid argument
device does not support requested feature x-vga
#################################################################
lspci -vvv -s 01:00.0
#################################################################

01:00.0 VGA compatible controller: NVIDIA Corporation GK106 [GeForce GTX 
660] (rev a1) (prog-if 00 [VGA controller])
	Subsystem: ASUSTeK Computer Inc. Device 8422
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at de000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at d0000000 (64-bit, prefetchable) [size=128M]
	Region 3: Memory at d8000000 (64-bit, prefetchable) [size=32M]
	Region 5: I/O ports at e000 [size=128]
	Expansion ROM at df000000 [disabled] [size=512K]
	Capabilities: [60] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D3 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Capabilities: [78] Express (v2) Endpoint, MSI 00
		DevCap:	MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 
<64us
			ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 
75.000W
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 256 bytes, MaxReadReq 512 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #0, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency L0s 
<512ns, L1 <4us
			ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- 
BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR-, OBFF Not 
Supported
			 AtomicOpsCap: 32bit- 64bit- 128bitCAS-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF 
Disabled
			 AtomicOpsCtl: ReqEn-
		LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- 
ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+, 
EqualizationPhase1+
			 EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest+
	Capabilities: [b4] Vendor Specific Information: Len=14 <?>
	Capabilities: [100 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
			Status:	NegoPending- InProgress-
	Capabilities: [128 v1] Power Budgeting <?>
	Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1 
Len=024 <?>
	Capabilities: [900 v1] #19
	Kernel driver in use: vfio-pci
	Kernel modules: nouveau