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Re: [Qemu-devel] [PATCH -V2 00/22] virtio-9p: paravirtual file system pa
From: |
Luiz Capitulino |
Subject: |
Re: [Qemu-devel] [PATCH -V2 00/22] virtio-9p: paravirtual file system passthrough |
Date: |
Wed, 24 Mar 2010 12:04:26 -0300 |
On Wed, 24 Mar 2010 09:28:36 +0530
"Aneesh Kumar K. V" <address@hidden> wrote:
> On Tue, 23 Mar 2010 20:17:33 -0300, Luiz Capitulino <address@hidden> wrote:
> > On Tue, 16 Mar 2010 14:44:58 +0530
> > "Aneesh Kumar K.V" <address@hidden> wrote:
> >
> > > Hi,
> > >
> > >
> > > This patch series adds a paravirtual file system passthrough mechanism to
> > > QEMU
> > > based on the 9P protocol. With the current implementation, all I/O is
> > > implemented
> > > in the VCPU thread. We've modified the protocol handlers so that we can
> > > support
> > > dispatch I/O in a thread pool. The actual thread pool implementation will
> > > be posted later
> > >
> > > This patch set should work with any recent Linux kernel as virtio-9p has
> > > been
> > > supported for a few kernel releases now. Export dir is specified using
> > > the below
> > > Qemu option.
> > >
> > > -device virtio-9p-pci,share_path=/mnt/,mount_tag=v_mnt
> > >
> > > mount_tag is used to identify the mount point in the kernel. This will be
> > > available in Linux
> > > kernel via /sys/devices/virtio-pci/virtio1/mount_tag file.
> >
> > I tried this very '-device' line and I can see that the guest has loaded
> > the virtio modules, but there isn't anything in the virtio0 directory other
> > than standard sysfs files.
> >
> > Is there a way to debug this?
> >
>
> which version of the kernel ?
2.6.31.5
> The latest linus tree have all the needed
> changes. You should have /sys/bus/virtio/drivers/9pnet_virtio/ if you
> have CONFIG_NET_9P_VIRTIO enabled.
I have it, but still no mount_tag. I'll try with a more recent
kernel but this will take more time.
> You can then find mount tag at virtio<n>/mount_tag
>
>
> > Something possibly related is that, I had to rewind the tree by some
> > commits
> > because this series doesn't apply against current HEAD.
>
>
>
> The patches are against 0aef4261ac0ec9089ade0e3a92f986cb4ba7317e of the
> master branch
>
>
> -aneesh
- [Qemu-devel] [PATCH -v2 16/22] virtio-9p: Add support for hardlink, (continued)
- [Qemu-devel] [PATCH -v2 16/22] virtio-9p: Add support for hardlink, Aneesh Kumar K.V, 2010/03/16
- [Qemu-devel] [PATCH -v2 21/22] virtio-9p: Remove unnecessary definition of fid, Aneesh Kumar K.V, 2010/03/16
- [Qemu-devel] [PATCH -v2 22/22] virtio-9p: Update existing fid path on rename, Aneesh Kumar K.V, 2010/03/16
- [Qemu-devel] [PATCH -v2 10/22] virtio-9p: Implement P9_TCREATE, Aneesh Kumar K.V, 2010/03/16
- [Qemu-devel] [PATCH -v2 15/22] virtio-9p: Use little endian format on virtio, Aneesh Kumar K.V, 2010/03/16
- [Qemu-devel] [PATCH -v2 20/22] virtio-9p: Remove BUG_ON and add proper error handling, Aneesh Kumar K.V, 2010/03/16
- [Qemu-devel] [PATCH -v2 19/22] virtio-9p: Get the correct count values from the pdu, Aneesh Kumar K.V, 2010/03/16
- [Qemu-devel] [PATCH -v2 13/22] virtio-9p: Implement P9_TFLUSH, Aneesh Kumar K.V, 2010/03/16
- Re: [Qemu-devel] [PATCH -V2 00/22] virtio-9p: paravirtual file system passthrough, Luiz Capitulino, 2010/03/23