[vfio-users] Initialization problem with pass-through video card

Sheldon Palmer slf_palmer at hotmail.com
Mon May 9 16:18:35 UTC 2016


> On May 7, 2016, at 8:45 AM, Ivan Volosyuk <ivan.volosyuk at gmail.com> wrote:
> 
> I have GTX 970 and an intel buildin graphic I use for X11.
> If you use ovmf you should at least get the efi startup screen on your nvidia output when your VM boots. Don't bother loading windows there, solve this first.
> I have:
> 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
> BOOT_IMAGE=/kernel-genkernel-x86_64-4.5.1-gentoo root=UUID=8982a4f4-741e-4e77-9ac6-45422b169c4c ro rootfstype=ext4 init=/sbin/init intel_iommu=on pci-stub.ids=10de:13c2,10de:0fbb
> 

Still no luck. Has anyone else experienced this problem? Any other thoughts or suggestions?  Thank you



>> On Sat, May 7, 2016 at 9:43 AM Sheldon Palmer <slf_palmer at hotmail.com> wrote:
>> > > # cat /etc/modprobe.d/vfio.conf 
>> > > options vfio-pci ids=8086:0151,10de:17c8,10de:0fb0 
>> 
>> I deleted:  8086:0151
>> 
>> 
>> > Do NOT add the root port here, it needs to be bound to the default
>> > driver which will be pcieport. If the bridge is not enabled we can't
>> > talk to the card behind it. I'm not sure if this is actually taking
>> > affect though since vfio-pci in your kernel shouldn't bind to it.
>> > 
>> > > options vfio-pci disable_vga=1
>> > > 
>> > > # cat /etc/modprobe.d/kvm.conf 
>> > > # if vfio-pci was built as a module ( default on arch & ubuntu )
>> > > options vfio_iommu_type1 allow_unsafe_interrupts=1 
>> 
>> And got rid of this: options vfio_iommu_type1 allow_unsafe_interrupts=1 
>> 
>> 
>> 
>> > This is IGD going whacko, is this just a result of enabling the IOMMU
>> > or does it have some relation to the VM starting? Have you tried
>> > intel_iommu=on,igfx_off? It might be a bug in your host firmware not
>> > enabling RMRR entries for stolen memory. iommu=pt may also resolve it.
>> 
>> Adding "igfx_off" got rid of the DMA write errors
>> 
>> 
>> Removed all of this:
>> 
>> > > <qemu:commandline>
>> > > <qemu:arg value='-drive'/>
>> > > <qemu:arg value='if=pflash,format=raw,readonly,file=/usr/share/edk2.git/ovmf-x64/OVMF-pure-efi.fd'/>
>> > > </qemu:commandline>
>> 
>> > My only suspicion is the misuse of that root port by trying to bind it
>> > to vfio-pci. Undo that, if it still doesn't work send 'sudo lspci
>> > -vvv' for 00:01.0, and 01:
>> 
>> 
>> Still just a flicker then the monitor turns off so here is sudo lspci -vvv
>> 
>> 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
>>     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-
>>     Latency: 0, Cache Line Size: 64 bytes
>>     Interrupt: pin A routed to 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: 00000000e0000000-00000000f1ffffff
>>     Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
>>     BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
>>         PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
>>     Capabilities: [88] Subsystem: ASUSTeK Computer Inc. P8H77-I Motherboard
>>     Capabilities: [80] Power Management version 3
>>         Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
>>         Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
>>     Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
>>         Address: feeff00c  Data: 41a1
>>     Capabilities: [a0] Express (v2) Root Port (Slot+), MSI 00
>>         DevCap:    MaxPayload 256 bytes, PhantFunc 0
>>             ExtTag- RBE+
>>         DevCtl:    Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
>>             RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
>>             MaxPayload 256 bytes, MaxReadReq 128 bytes
>>         DevSta:    CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
>>         LnkCap:    Port #2, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <256ns, L1 <8us
>>             ClockPM- Surprise- LLActRep- BwNot+ ASPMOptComp+
>>         LnkCtl:    ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>             ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>         LnkSta:    Speed 8GT/s, Width x16, TrErr- Train+ SlotClk+ DLActive- BWMgmt+ ABWMgmt+
>>         SltCap:    AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
>>             Slot #1, PowerLimit 75.000W; Interlock- NoCompl+
>>         SltCtl:    Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
>>             Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
>>         SltSta:    Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
>>             Changed: MRL- PresDet+ LinkState-
>>         RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
>>         RootCap: CRSVisible-
>>         RootSta: PME ReqID 0000, PMEStatus- PMEPending-
>>         DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, OBFF Not Supported ARIFwd-
>>         DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
>>         LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
>>              Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
>>              Compliance De-emphasis: -6dB
>>         LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+, EqualizationPhase1+
>>              EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest-
>>     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: [140 v1] Root Complex Link
>>         Desc:    PortNumber=02 ComponentID=01 EltType=Config
>>         Link0:    Desc:    TargetPort=00 TargetComponent=01 AssocRCRB- LinkType=MemMapped LinkValid+
>>             Addr:    00000000fed19000
>>     Capabilities: [d94 v1] #19
>>     Kernel driver in use: pcieport
>> 
>> 
>> 
>> 01:00.0 VGA compatible controller: NVIDIA Corporation GM200 [GeForce GTX 980 Ti] (rev a1) (prog-if 00 [VGA controller])
>>     Subsystem: ASUSTeK Computer Inc. GM200 [GeForce GTX 980 Ti]
>>     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 f6000000 (32-bit, non-prefetchable) [size=16M]
>>     Region 1: Memory at e0000000 (64-bit, prefetchable) [size=256M]
>>     Region 3: Memory at f0000000 (64-bit, prefetchable) [size=32M]
>>     Region 5: I/O ports at e000 [size=128]
>>     Expansion ROM at f7000000 [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) Legacy Endpoint, MSI 00
>>         DevCap:    MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us
>>             ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
>>         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 not supported, Exit Latency L0s <1us, L1 <4us
>>             ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
>>         LnkCtl:    ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>             ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>         LnkSta:    Speed 8GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
>>         DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR+, OBFF Via message
>>         DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
>>         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: [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=01
>>             Status:    NegoPending- InProgress-
>>     Capabilities: [250 v1] Latency Tolerance Reporting
>>         Max snoop latency: 0ns
>>         Max no snoop latency: 0ns
>>     Capabilities: [258 v1] L1 PM Substates
>>         L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
>>               PortCommonModeRestoreTime=255us PortTPowerOnTime=10us
>>     Capabilities: [128 v1] Power Budgeting <?>
>>     Capabilities: [420 v2] Advanced Error Reporting
>>         UESta:    DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>>         UEMsk:    DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>>         UESvrt:    DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
>>         CESta:    RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
>>         CEMsk:    RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
>>         AERCap:    First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
>>     Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
>>     Capabilities: [900 v1] #19
>>     Kernel driver in use: vfio-pci
>>     Kernel modules: nvidia
>> 
>> 
>> 
>> 01:00.1 Audio device: NVIDIA Corporation Device 0fb0 (rev a1)
>>     Subsystem: ASUSTeK Computer Inc. Device 8548
>>     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 B routed to IRQ 17
>>     Region 0: Memory at f7080000 (32-bit, non-prefetchable) [size=16K]
>>     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-
>>         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 not supported, Exit Latency L0s <1us, L1 <4us
>>             ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
>>         LnkCtl:    ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>             ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>         LnkSta:    Speed 8GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
>>         DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR+, OBFF Via message
>>         DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
>>         LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
>>              EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
>>     Capabilities: [100 v2] Advanced Error Reporting
>>         UESta:    DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>>         UEMsk:    DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>>         UESvrt:    DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
>>         CESta:    RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
>>         CEMsk:    RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
>>         AERCap:    First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
>>     Kernel driver in use: vfio-pci
>>     Kernel modules: snd_hda_intel
>> 
>> 
>> Appreciate it Alex, thank you!
>> 
>> 
>> 
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>> vfio-users at redhat.com
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