https://bugzilla.kernel.org/show_bug.cgi?id=202055 Bug ID: 202055 Summary: Fails to PCI passthrough SSD with SMI SM2262 controller. Product: Virtualization Version: unspecified Kernel Version: 4.19.12-arch1-1-ARCH Hardware: Other OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: coffmaker@xxxxxxxxx Regression: No Trying to pci passthrough Intel SSD 760p 256G which is build with SMI SM2262 controller fails with following error: > qemu-system-x86_64: -device vfio-pci,host=06:00.0: vfio 0000:06:00.0: failed to add PCI capability 0x11[0x50]@0xb0: table & pba overlap, or they don't fit in BARs, or don't align. According to [this](https://forums.unraid.net/topic/72036-nvme-m2-passthrough/) thread it happens to every SSD with SM2262 controller. It happens regardless of nvme or vfio-pci is in use. Besides this I had problems using vfio-pci with device. There is my vfio.conf: options vfio-pci ids=8086:f1a6 But according to lspci it still used nvme driver I tried to add "softdep nvme pre: vfio vfio-pci" to vfio.conf with same result. Nvme was used. So I tried to rebind device and it worked but qemu still crashed. > echo 0000:06:00.0 | tee /sys/bus/pci/devices/0000\:06\:00.0/driver/unbind > echo 8086 f1a6 | tee /sys/bus/pci/drivers/vfio-pci/new_id uname -a: > Linux localhost 4.19.12-arch1-1-ARCH #1 SMP PREEMPT Fri Dec 21 13:56:54 UTC 2018 x86_64 GNU/Linux root=/dev/nvme1n1p2 rw transparent_hugepage=never intel_iommu=on vfio_iommu_type1.allow_unsafe_interrupts=1 QEMU 3.1.0 /etc/modprobe.d/kvm.conf: > options kvm_intel nested=1 > options kvm allow_unsafe_assigned_interrupts=1 > options kvm ignore_msrs=1 /etc/modprobe.d/vfio.conf: > options vfio-pci ids=8086:f1a6 > softdep nvme pre: vfio vfio-pci ``` 06:00.0 Non-Volatile memory controller [0108]: Intel Corporation SSD Pro 7600p/760p/E 6100p Series [8086:f1a6] (rev 03) (prog-if 02 [NVM Express]) Subsystem: Intel Corporation SSD Pro 7600p/760p/E 6100p Series [8086:390b] Physical Slot: 2-1 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: 32 bytes Interrupt: pin A routed to IRQ 42 NUMA node: 0 Region 0: Memory at fba00000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] 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: [50] MSI: Enable- Count=1/8 Maskable+ 64bit+ Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [70] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq+ RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- FLReset- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ TransPend- LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L1 <8us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 8GT/s (ok), Width x4 (ok) TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, 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: -6dB, EqualizationComplete+, EqualizationPhase1+ EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest- Capabilities: [b0] MSI-X: Enable+ Count=16 Masked- Vector table: BAR=0 offset=00002000 PBA: BAR=0 offset=00002100 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- AdvNonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn- MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap- HeaderLog: 00000000 00000000 00000000 00000000 Capabilities: [158 v1] Secondary PCI Express <?> Capabilities: [178 v1] Latency Tolerance Reporting Max snoop latency: 0ns Max no snoop latency: 0ns Capabilities: [180 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=10us PortTPowerOnTime=10us L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- T_CommonMode=0us LTR1.2_Threshold=0ns L1SubCtl2: T_PwrOn=10us Kernel driver in use: nvme ``` -- You are receiving this mail because: You are watching the assignee of the bug.
