Hi,
I am a happy and thankful VFIO-user with 2 graphics, M.2 and audio devices
passed through to 2 VM's using Proxmox on a ASRock x470 Master SLI (L3.67) with
a Ryzen 7 2700X. I would like to ask if anyone knows how to improve my
situation with one particular device.
My IOMMU group 19 contains an audio (0d:00.3) and a SATA (0d:00.2) device that
can only be used once, when passed through to a VM. They work fine the first
time and give me S/Pdif audio and a connection to a Bluray drive.
In case of a reboot of the VM, both devices cannot be reset because of the
other (0d:00.0) device in group 19:
0d:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc.
[AMD] Zeppelin/Renoir PCIe Dummy Function [1022:1455]
Subsystem: Advanced Micro Devices, Inc. [AMD] Zeppelin/Renoir PCIe
Dummy Function [1022:1455]
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-
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] 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: [64] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1
unlimited
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
SlotPowerLimit 0.000W
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 <64ns, L1 <1us
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 ABCD, TimeoutDis+, LTR-,
OBFF Not Supported
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] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
Capabilities: [150 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: [270 v1] #19
Capabilities: [2a0 v1] Access Control Services
ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd-
EgressCtrl- DirectTrans-
ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd-
EgressCtrl- DirectTrans-
0d:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller
[AHCI mode] (rev 51)
Subsystem: ASRock Incorporation FCH SATA Controller [AHCI mode]
Kernel driver in use: vfio-pci
Kernel modules: ahci
0d:00.3 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models
00h-0fh) HD Audio Controller
Subsystem: ASRock Incorporation Family 17h (Models 00h-0fh) HD Audio
Controller
Kernel driver in use: vfio-pci
Kernel modules: snd_hda_intel
Personally, I don't care about this Non-Essential(!) device that has no kernel
driver. I tried passing it to the same VM, as a third device and as a
multi-function device (all 3 in 1), but that does not work and gives me none of
the devices in the VM. Trying to reset 0d:00.0 results in an unknown header 7f
error for all three devices.
Is there a way to reset this device? Or let KVM know that it can reset the
other two devices (because I don't use the third)?
I can do more tests and provide more logs upon request, but I don't know the
best way to proceed at the moment.
Any help or suggestions are very much appreciated.
kind regards, Arjen
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