On Fri, Aug 05, 2016 at 10:23:58AM +0800, Kevin Zhao wrote: > Hi All, > I have a problem may about Qemu and kindly need your help. Does > qemu-system-aarch64 support virtio-9p ? > Recently I have tried to use qemu remapped the file from host to > guest. As I know, Qemu has supported this so long as guest kernel has > support 9p(virtfs). Reference to this link: > http://wiki.qemu.org/Documentation/9psetup > Fedora 24 AArch64 kernel has supported this: > [root@sha-win-225 ~]# lsmod | grep 9p > 9p 56273 0 > fscache 87449 1 9p > 9pnet_virtio 9122 0 > 9pnet 83564 2 9p,9pnet_virtio > virtio_ring 13866 5 virtio_net,virtio_pci,9pnet_ > virtio,virtio_mmio,virtio_scsi > virtio 9467 5 virtio_net,virtio_pci,9pnet_ > virtio,virtio_mmio,virtio_scsi > > Now I use virsh to launch the VM, and the corresponding qemu command I > have pasted here: > http://paste.openstack.org/show/549225/. > You can see that: > * -fsdev > local,security_model=mapped,id=fsdev-fs0,path=/var/lib/libvirt/images/coreos > -device > virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=share,bus=pci.2,addr=0x1* > Here is the command that remapped the directory from host to guest. > After VM launched, I use the command to mount: > * mount -t 9p -o trans=virtio share /tmp/shared/ > -oversion=9p2000.L,posixacl,cache=loose* > But mount command will be blocked and output nothing.
Try using version=9p2000.u instead - I've noticed other versions have been buggy in various kernel version/qemu version combinations. The 9p2000.u version is what i use in libvirt-sandobx and so I know it will work in general. > The Qemu version is QEMU emulator version 2.5.0 (Debian > 1:2.5+dfsg-5ubuntu10.2). Besides test fedora24 guest, I have got the same > problem in Debian jessie. > Kindly need your help~You will be really appreciated. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
