On Wed, 6 Jun 2012 10:12:27 +0200 Andreas Hartmann <andihartmann@xxxxxxxxxxxxxxx> wrote: > On Tue, 05 Jun 2012 18:55:42 +0200 > Andreas Hartmann <andihartmann@xxxxxxxxxxxxxxx> wrote: > > > Alex Williamson wrote: > > [...] > > > Yep, I think the previous suggestion about reloading vfio_iommu_type1 > > > with allow_unsafe_interrupts=1 will solve it. > > > > Yes! Works now. Success!!!!! > > > > Works means: Device is seen in VM. I couldn't test it up to now, because > > I don't have any driver in the VM for this device. > > Meanwhile, I enabled the drivers in the VM for the device I passed > through. Unfortunately, it doesn't work :-(. I'm getting this entry in > messages at the moment, the module rt2800pci is used by hostapd: > > Jun 6 09:25:02 host kernel: [ 201.895812] irq 21: nobody cared (try booting with the "irqpoll" option) > Jun 6 09:25:02 host kernel: [ 201.895819] Pid: 0, comm: swapper/1 Not tainted 3.4.0-next-20120529-16.1-desktop #6 > Jun 6 09:25:02 host kernel: [ 201.895822] Call Trace: > Jun 6 09:25:02 host kernel: [ 201.895836] <IRQ> [<ffffffff810d37a8>] __report_bad_irq+0x38/0xe0 > Jun 6 09:25:02 host kernel: [ 201.895842] [<ffffffff810d3a6d>] note_interrupt+0x16d/0x220 > Jun 6 09:25:02 host kernel: [ 201.895849] [<ffffffff810d12d6>] handle_irq_event_percpu+0xc6/0x270 > Jun 6 09:25:02 host kernel: [ 201.895855] [<ffffffff810d14c9>] handle_irq_event+0x49/0x70 > Jun 6 09:25:02 host kernel: [ 201.895860] [<ffffffff810d45d2>] handle_fasteoi_irq+0x82/0x130 > Jun 6 09:25:02 host kernel: [ 201.895865] [<ffffffff81004460>] handle_irq+0x20/0x30 > Jun 6 09:25:02 host kernel: [ 201.895869] [<ffffffff81004098>] do_IRQ+0x58/0xe0 > Jun 6 09:25:02 host kernel: [ 201.895876] [<ffffffff815f112a>] common_interrupt+0x6a/0x6a > Jun 6 09:25:02 host kernel: [ 201.895907] <EOI> [<ffffffffa0029077>] ? arch_local_irq_enable+0x8/0xd [processor] > Jun 6 09:25:02 host kernel: [ 201.895915] [<ffffffff8107a37a>] ? sched_clock_idle_wakeup_event+0x1a/0x20 > Jun 6 09:25:02 host kernel: [ 201.895929] [<ffffffffa002a046>] acpi_idle_enter_simple+0xd0/0x111 [processor] > Jun 6 09:25:02 host kernel: [ 201.895939] [<ffffffff814915f9>] cpuidle_enter+0x19/0x20 > Jun 6 09:25:02 host kernel: [ 201.895943] [<ffffffff81491d81>] cpuidle_idle_call+0xc1/0x1e0 > Jun 6 09:25:02 host kernel: [ 201.895949] [<ffffffff8100bd45>] cpu_idle+0x85/0xd0 > Jun 6 09:25:02 host kernel: [ 201.895955] [<ffffffff815e63d5>] start_secondary+0x8a/0x8c > Jun 6 09:25:02 host kernel: [ 201.895958] handlers: > Jun 6 09:25:02 host kernel: [ 201.895967] [<ffffffffa0488230>] vfio_intx_handler [vfio_pci] threaded [<ffffffffa04884e0>] vfio_intx_thread [vfio_pci] > Jun 6 09:25:02 host kernel: [ 201.895969] Disabling IRQ #21 > > I tried with irqpoll, but this didn't help. BTW: IRQ 21 isn't a shared > interrupt! Did I miss an option during kernel configuration? No device at all here listens for IRQ 21. The WLAN-device is at IRQ 5 (no shared IRQ)! [...] > lspci -vs7 > 06:07.0 Network controller: Ralink corp. RT2800 802.11n PCI > Subsystem: Linksys Device 0067 > Flags: bus master, slow devsel, latency 32, IRQ 5 > Memory at fd8e0000 (32-bit, non-prefetchable) [size=64K] > Capabilities: [40] Power Management version 3 > Kernel driver in use: vfio-pci What's going on here? Where does interrupt 21 come from? It should be 5! Thanks, kind regards, Andreas -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
