In your libvirt configuration, ensure that the filesystem type is set to virtio, which should match the virtio driver used for the 9P transport device. Here's an example snippet:<filesystem type='mount' accessmode='mapped'> <source dir='/home/tar/Public/share'/> <target dir='/mnt'/> <driver type='virtio'/> </filesystem>
Also Monitor the guest's system logs (/var/log/messages) for any errors related to virtio or the vio9p driver during boot or when attempting to access the shared directory. On Sun, 5 May, 2024, 4:39 pm Taryel Hlontsi, <xha...@gmail.com> wrote: > Hi all, > > Recently I was trying NetBSD10 amd64 as a KVM/QEMU guest on Linux host > and wanted to configure a shared directory with the new vio9p driver. > However I did not succeed. It looks like something was detected as a 9P > transport device but that's about it. > > Maybe someone has some clues on how to configure it properly? > > HOSTS (if it matters): > Debian 12 on Ext4 > Ubuntu 24.04 on XFS > > GUEST: > uname -a > NetBSD zed.home 10.0 NetBSD 10.0 (GENERIC) #0: Thu Mar 28 08:33:33 UTC > 2024 mkre...@mkrepro.netbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC > amd64 > The NetBSD current produces the same result > > My libvirt filesystem config: > <filesystem type="mount" accessmode="mapped"> > <source dir="/home/tar/Public/share"/> > <target dir="/mnt"/> > <address type="pci" domain="0x0000" bus="0x00" slot="0x08" > function="0x0"/> > </filesystem> > > dmesg | grep -E 'vio|virtio' > [ 1.016364] virtio0 at pci0 dev 6 function 0 > [ 1.016364] virtio0: console device (id 3, rev. 0x00) > [ 1.016364] virtio0: autoconfiguration error: no matching child > driver; not configured > [ 1.016364] virtio1 at pci0 dev 7 function 0 > [ 1.016364] virtio1: memory balloon device (id 5, rev. 0x00) > [ 1.016364] viomb0 at virtio1: features: 0x10000000<INDIRECT_DESC> > [ 1.016364] virtio1: allocated 8192 byte for virtqueue 0 for > inflate, size 128 > [ 1.016364] virtio1: allocated 8192 byte for virtqueue 1 for > deflate, size 128 > [ 1.016364] virtio1: interrupting at ioapic0 pin 11 > [ 1.016364] virtio2 at pci0 dev 8 function 0 > [ 1.016364] virtio2: 9P transport device (id 9, rev. 0x00) > [ 1.016364] virtio2: autoconfiguration error: no matching child > driver; not configured > > modstat | grep -E 'vio|virtio' > if_vioif driver builtin - 0 - virtio > ld_virtio driver builtin - 0 - ld,virtio > viomb driver builtin - 0 - virtio > vioscsi driver builtin - 0 - virtio > virtio driver builtin - 5 - - > virtio_pci driver builtin - 0 - pci,virtio > > Thank you > >
