Re: [libvirt-users] passthrough of PCI-device

Hi Pierre, thanks for your reply. I am using kernel 3.10.0-123.8.1.el7.x86_64. The kernel modul used after nodedev-detach is vfio-pci This is the output of lspci -vv after I did a virsh nodedev-detatch pci_0000_02_00_0 02:00.0 Ethernet controller: PLX Technology, Inc. Device 235e Subsystem: PLX Technology, Inc. Device 235e Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 16 Region 0: Memory at f0810000 (32-bit, non-prefetchable) [disabled] [size=256] Region 1: I/O ports at e000 [disabled] [size=256] Region 2: Memory at e0000000 (32-bit, non-prefetchable) [disabled] [size=256M] Region 3: Memory at f0000000 (32-bit, non-prefetchable) [disabled] [size=8M] Expansion ROM at f0800000 [disabled] [size=64K] Capabilities: [40] Power Management version 1 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] CompactPCI hot-swap <?> Capabilities: [4c] Vital Product Data Unknown large resource type 35, will not decode more. Kernel driver in use: vfio-pci Best regards Michael -----Ursprüngliche Nachricht----- Von: libvirt-users-bounces(a)redhat.com [mailto:libvirt-users-bounces@redhat.com] Im Auftrag von Pierre Schweitzer Gesendet: Montag, 13. Oktober 2014 10:04 An: libvirt-users(a)redhat.com Betreff: Re: [libvirt-users] passthrough of PCI-device Dear Michael, Did you activate the Intel IO MMU (or its equivalent for AMD)? Also, did you load the pci_stub module for Linux? It is mandatory (it will replace current driver for your passed through hardware). Cheers, Pierre On 10/13/2014 07:54 AM, Weis, Michael (DWIE) wrote: > Good morning, > > there is a typo in my description; > the line > <address domain='0x0' bus='0x1' slot='0x00' function='0x0'/> > should be > <address domain='0x0' bus='0x2' slot='0x00' function='0x0'/> > That was correct in my xml-file. > > Isn't there anybody how can help me with that? > > > Regards > > Michael Weis > > > > Von: Weis, Michael (DWIE) > Gesendet: Dienstag, 7. Oktober 2014 11:45 > An: &#39;libvirt-users(a)redhat.com&#39; > Betreff: passthrough of PCI-device > > Hello, > > I try to passthrough a PCI-card to a VM named testvm I want to do > that with an xml-file named hga.xml including the following content: > > <hostdev mode='subsystem' type='pci' managed='yes'> > <source> > <address domain='0x0' bus='0x1' slot='0x00' function='0x0'/> > </source> > </hostdev> > > When I execute > virsh attach-device testvm hga.xml > I get the following error: > Fehler: Fehler beim Anhängen des Geräts von hga.xml > (error: error while attaching device from hga.xml) > Fehler: Interner Fehler: Kann Qemu-Befehl 'device_add' nicht ausführen: Device initialization failed. > (error: internal error: cannot execute 'device_add': > > In the syslog of the host I get the following errors: > Oct 7 11:32:34 artemis2 journal: Interner Fehler: Kann Qemu-Befehl 'device_add' nicht ausführen: Device initialization failed. > Oct 7 11:32:53 artemis2 kernel: ffff880220fadd10 ffffffff810f924a > ffff880220fadd28 0000000000000246 Oct 7 11:32:53 artemis2 kernel: > ffff8800bd07a400 000000007265756d ffffffffa0866ee0 0000000000000000 Oct 7 11:32:53 artemis2 kernel: Call Trace: > Oct 7 11:32:53 artemis2 kernel: [<ffffffff815e237b>] > dump_stack+0x19/0x1b Oct 7 11:32:53 artemis2 kernel: > [<ffffffff810f924a>] __setup_irq+0x54a/0x570 Oct 7 11:32:53 artemis2 > kernel: [<ffffffffa0866ee0>] ? virqfd_wakeup+0xc0/0xc0 [vfio_pci] Oct > 7 11:32:53 artemis2 kernel: [<ffffffff810f93cc>] > request_threaded_irq+0xcc/0x170 Oct 7 11:32:53 artemis2 kernel: > [<ffffffffa0866b8a>] vfio_intx_set_signal+0x10a/0x1f0 [vfio_pci] Oct > 7 11:32:53 artemis2 kernel: [<ffffffffa08670e8>] > vfio_pci_set_intx_trigger+0xc8/0x1b0 [vfio_pci] Oct 7 11:32:53 > artemis2 kernel: [<ffffffffa086799b>] > vfio_pci_set_irqs_ioctl+0x7b/0x100 [vfio_pci] Oct 7 11:32:53 > artemis2 > kernel: [<ffffffff8115d352>] ? memdup_user+0x42/0x70 Oct 7 11:32:53 > artemis2 kernel: [<ffffffffa0865e74>] vfio_pci_ioctl+0x314/0xa00 > [vfio_pci] Oct 7 11:32:53 artemis2 kernel: [<ffffffff81194b6a>] ? > kmem_cache_alloc+0x1ba/0x1d0 Oct 7 11:32:53 artemis2 kernel: > [<ffffffff811b156c>] ? get_empty_filp+0x5c/0x190 Oct 7 11:32:53 > artemis2 kernel: [<ffffffff811f1891>] ? fsnotify+0x251/0x350 Oct 7 > 11:32:53 artemis2 kernel: [<ffffffff81251806>] ? > security_file_alloc+0x16/0x20 Oct 7 11:32:53 artemis2 kernel: > [<ffffffff811b15a0>] ? get_empty_filp+0x90/0x190 Oct 7 11:32:53 artemis2 kernel: [<ffffffffa084f163>] vfio_device_fops_unl_ioctl+0x23/0x30 [vfio] Oct 7 11:32:53 artemis2 kernel: [<ffffffff811c2af5>] do_vfs_ioctl+0x2e5/0x4c0 Oct 7 11:32:53 artemis2 kernel: [<ffffffff811af780>] ? vfs_write+0x160/0x1e0 Oct 7 11:32:53 artemis2 kernel: [<ffffffff811c2d71>] SyS_ioctl+0xa1/0xc0 Oct 7 11:32:53 artemis2 kernel: [<ffffffff815f2a59>] system_call_fastpath+0x16/0x1b Oct 7 11:32:53 artemis2 journal: Interner Fehler: Kann Qemu-Befehl 'device_add' nicht ausführen: Device initialization failed. > > My version-information: > OS: CentOS Linux release 7.0.1406 (Core) > Kernel: Linux artemis2 3.10.0-123.8.1.el7.x86_64 > libvirt-daemon-driver-secret-1.2.8-1.el7.centos.x86_64 > libvirt-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-kvm-1.2.8-1.el7.centos.x86_64 > libvirt-client-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-driver-qemu-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-config-network-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-driver-interface-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-driver-nodedev-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-driver-storage-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-config-nwfilter-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-driver-network-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-driver-lxc-1.2.8-1.el7.centos.x86_64 > libvirt-daemon-driver-nwfilter-1.2.8-1.el7.centos.x86_64 > > The PCI-Card I want to passthrough: > 02:00.0 Ethernet controller: PLX Technology, Inc. Device 235e > Subsystem: PLX Technology, Inc. Device 235e > Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- > Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- > Interrupt: pin A routed to IRQ 16 > Region 0: Memory at f0810000 (32-bit, non-prefetchable) [disabled] [size=256] > Region 1: I/O ports at e000 [disabled] [size=256] > Region 2: Memory at e0000000 (32-bit, non-prefetchable) [disabled] [size=256M] > Region 3: Memory at f0000000 (32-bit, non-prefetchable) [disabled] [size=8M] > Expansion ROM at f0800000 [disabled] [size=64K] > Capabilities: [40] Power Management version 1 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [48] CompactPCI hot-swap <?> > Capabilities: [4c] Vital Product Data > Unknown large resource type 35, will not decode more. > Kernel driver in use: vfio-pci > > Please help. > > > Best regards > > Michael Weis > > > > PROPRIETARY: This e-mail contains proprietary information some or all of which may be legally privileged. It is intended for the recipient only. If an addressing or transmission error has misdirected this e-mail, please notify the authority by replying to this e-mail. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely on this e-mail. > > > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > -- Pierre Schweitzer <pierre(a)reactos.org&gt; System & Network Administrator Senior Kernel Developer ReactOS Deutschland e.V. ______________________________________________________________________ CAUTION: This message was sent via the Public Internet and its authenticity cannot be guaranteed. PROPRIETARY: This e-mail contains proprietary information some or all of which may be legally privileged. It is intended for the recipient only. 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