It seems I've got what the issue is. If I type 'info usbhost' In QEMU monitor, I can see only two devices: Integrated SmartCard Reader, Biometric Coprocessor. So only these two can be pass-throughed. The rest of host USB devices are not visible by QEMU and therefore cannot be used in guests.
On Tue, Mar 25, 2025 at 2:21 AM Mario Marietto <marietto2...@gmail.com> wrote: > > ---> I don't think so (but I could be wrong). But it definitely requires > IOMMU, which I doubt NVMM supports. > > In FreeBSD there is bhyve that allows the passthru of the GPU without IOMMU. > > On Mon, Mar 24, 2025 at 9:39 PM Vitaly Shevtsov <shev.vt1...@gmail.com> wrote: >> >> > On NetBSD,qemu allows passing an nVidia GPU from the host to a Linux and >> > /or Windows guest ? thanks. >> >> I don't think so (but I could be wrong). But it definitely requires >> IOMMU, which I doubt NVMM supports. >> >> On Tue, Mar 25, 2025 at 1:35 AM Mario Marietto <marietto2...@gmail.com> >> wrote: >> > >> > Just a question : >> > >> > On NetBSD,qemu allows passing an nVidia GPU from the host to a Linux and >> > /or Windows guest ? thanks. >> > >> > On Mon, Mar 24, 2025 at 9:31 PM Vitaly Shevtsov <shev.vt1...@gmail.com> >> > wrote: >> >> >> >> It's just a USB stick (Kingston DataTraveler) >> >> >> >> It's recognized by the kernel as: >> >> [ 15381.341529] umass0 at uhub5 port 2 configuration 1 interface 0 >> >> [ 15381.341529] umass0: Kingston (0x0951) DataTraveler 3.0 (0x1666), >> >> rev 2.10/0.01, addr 7 >> >> [ 15381.341529] umass0: using SCSI over Bulk-Only >> >> [ 15381.351529] scsibus0 at umass0: 2 targets, 1 lun per target >> >> [ 15381.351529] sd0 at scsibus0 target 0 lun 0: <Kingston, >> >> DataTraveler 3.0, > disk removable >> >> [ 15381.351529] sd0: fabricating a geometry >> >> [ 15381.351529] sd0: 29510 MB, 29510 cyl, 64 head, 32 sec, 512 >> >> bytes/sect x 60437492 sectors >> >> [ 15381.361604] sd0: fabricating a geometry >> >> [ 15381.361604] sd0: GPT GUID: 4e0321bd-dfee-47ad-b2dc-4879b9721620 >> >> [ 15381.361604] dk4 at sd0: "1f41835f-af7b-470b-8d60-e6b10332e142", >> >> 60432384 blocks at 4096, type: ffs >> >> >> >> On Tue, Mar 25, 2025 at 1:23 AM Manuel Bouyer <bou...@antioche.eu.org> >> >> wrote: >> >> > >> >> > On Tue, Mar 25, 2025 at 12:54:50AM +0500, Vitaly Shevtsov wrote: >> >> > > I'm sorry, but it still doesn't work :) >> >> > > >> >> > > Do you run QEMU as root to be able to pass USB devices or as a >> >> > > non-root user? >> >> > > >> >> > > I use the following to run VM in QEMU: >> >> > > qemu-system-x86_64 -m 4G -cpu host -smp 4 -M q35 -accel nvmm -usb >> >> > > -device usb-host -drive file=vm.qcow2 -nic user,model=e1000 -rtc >> >> > > base=localtime >> >> > > And I get the this error: >> >> > > qemu-system-x86_64: libusb_kernel_driver_active: -12 [NOT_SUPPORTED] >> >> > > >> >> > > Whichever bus/port I try, it always ends up with this error? What did >> >> > > I miss? >> >> > >> >> > What device do you try to pass though ? It needs to show up as ugen, >> >> > and the user running qemu needs read/write access to /dev/ugen* >> >> > >> >> > I used something like: >> >> > -usb -device >> >> > usb-host,bus=usb-bus.0,port=1,vendorid=0x1d50,productid=0x606f >> >> > >> >> > I think I also got the error -12, but that's not the problem. >> >> > >> >> > -- >> >> > Manuel Bouyer <bou...@antioche.eu.org> >> >> > NetBSD: 26 ans d'experience feront toujours la difference >> >> > -- >> > >> > >> > >> > -- >> > Mario. > > > > -- > Mario.
