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From: "Aneesh Kumar K. V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] virtio-9p is not working
In-Reply-To: <AANLkTikj37x5Hgh6gxASa-NNQDH-EwenX_prnEwBMCGE@mail.gmail.com>
References: <AANLkTikj37x5Hgh6gxASa-NNQDH-EwenX_prnEwBMCGE@mail.gmail.com>
Date: Thu, 22 Jul 2010 20:41:21 +0530
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To: Dallas Lee <mswplsdk@gmail.com>, qemu-devel@nongnu.org

On Wed, 21 Jul 2010 17:27:47 +0900, Dallas Lee <mswplsdk@gmail.com> wrote:
> Hi,
> 
> I have trying to use the virtio-9p for my linux in QEMU, but without
> success.
> 
> Here is my option for booting my qemu:
> i386-softmmu/qemu -kernel bzImage -append "console=ttyS0
> video=uvesafb:ywrap,overlay:rgb16,480x800-32@60 root=/dev/nfs rw
> nfsroot=10.0.2.2:/root,udp ip=10.0.2.16:::::eth0:none 5" -net
>  nic,model=virtio -net user -soundhw all -usb -serial
> telnet:localhost:1200,server -vga std -m 512 -L ./pc-bios -bios bios.bin
> -virtfs
> local,path=/home/dallas/nfs,security_model=passthrough,mount_tag=v_tmp
> 
> The virtio network is working, I could mount the nfs through virio net.
> 
> And in the guest linux, I tried to mount v9fs by using following command:
> mount -t 9p -o trans=virtio -o debug=0xFFFF v_tmp /mnt
> 
> but unfortunately I got the error:
> mount: mounting v_tmp on /mnt failed: No such device
> 
> And I can't find the v_tmp neither in /sys/devices/virtio-pci/virtio1/ nor
> in /sys/bus/virtio/drivers/9pnet_virtio/virtio1/

You need to have libattr dev package to get virtio enabled

-aneesh