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# Date Author Comment
4c793dda 01/04/2012 04:43 pm M. Mohan Kumar

hw/9pfs: Add new proxy filesystem driver

Add new proxy filesystem driver to add root privilege to qemu process.
It needs a helper process to be started by root user.

Following command line can be used to utilize proxy filesystem driver
-virtfs proxy,id=<id>,mount_tag=<tag>,socket_fd=<socket-fd>...
99519f0a 01/04/2012 04:21 pm Aneesh Kumar K.V

hw/9pfs: Move opt validation to FsDriver callback

This remove all conditional code from common code path and
make opt validation a FSDriver callback.

Signed-off-by: Aneesh Kumar K.V <>
77eec1b3 12/04/2011 07:05 pm Aneesh Kumar K.V

hw/9pfs: Improve portability to older systems

handle fs driver require a set of newly added syscalls. Don't
Compile handle FS driver if those syscalls are not available.
Instead of adding #ifdef for all those syscalls we check for
open by handle syscall. If that is available then rest of the...
9db221ae 10/31/2011 09:04 am Aneesh Kumar K.V

hw/9pfs: Add synthetic file system support using 9p

This patch create a synthetic file system with mount tag
v_synth when -virtfs_synth command line option is specified
in qemu. The synthetic file system can be mounted in guest
using 9p using the below command line...
2c74c2cb 10/31/2011 09:04 am M. Mohan Kumar

hw/9pfs: Read-only support for 9p export

A new fsdev parameter "readonly" is introduced to control accessing 9p export.
"readonly" can be used to specify the access type. By default "rw" access
is given to 9p export.

Signed-off-by: M. Mohan Kumar <>...
fbcbf101 10/15/2011 01:00 pm Aneesh Kumar K.V

hw/9pfs: Rename fstype to fsdriver to make it consistent across VirtFS code

Signed-off-by: Aneesh Kumar K.V <>
b97400ca 10/15/2011 01:00 pm Aneesh Kumar K.V

hw/9pfs: Use export flag for indicating security model

This helps to remove some of the structure members

Signed-off-by: Aneesh Kumar K.V <>
d9b36a6e 10/15/2011 01:00 pm M. Mohan Kumar

hw/9pfs: Handle Security model parsing

Except local fs driver all other fs drivers (handle, synth) don't need
security model. Update fsdev parameter parsing accordingly.

Signed-off-by: M. Mohan Kumar <>
Signed-off-by: Aneesh Kumar K.V <>
d3ab98e6 10/12/2011 04:41 pm Aneesh Kumar K.V

hw/9pfs: Add new virtfs option writeout=immediate skip host page cache

writeout=immediate implies the after pwritev we do a sync_file_range.

Reviewed-by: Stefan Hajnoczi <>
Signed-off-by: Aneesh Kumar K.V <>
5f542225 09/22/2011 07:08 pm Aneesh Kumar K.V

hw/9pfs: Add handle based fs driver

Signed-off-by: Aneesh Kumar K.V <>
7267c094 08/21/2011 07:01 am Anthony Liguori

Use glib memory allocation and free functions

qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <>
9f506893 10/20/2010 08:10 pm Harsh Prateek Bora

[virtio-9p] Qemu 9p commandline options validity checks

Signed-off-by: Harsh Prateek Bora <>
Signed-off-by: Venkateswararao Jujjuri <>
526c5237 09/21/2010 07:35 pm Gerd Hoffmann

Use machine_init() to register virtfs config options.
9ce56db6 06/22/2010 11:15 pm Venkateswararao Jujjuri (JV)

virtio-9p: Introduces an option to specify the security model.

The new option is:

-fsdev fstype,id=myid,path=/share_path/,security_model=[mapped|passthrough]
-virtfs fstype,path=/share_path/,security_model=[mapped|passthrough],mnt_tag=tag

In the case of mapped security model, files are created with QEMU user...
74db920c 05/03/2010 08:17 pm Gautham R Shenoy

virtio-9p: Create a commandline option -fsdev

This patch creates a new command line option named -fsdev to hold any file
system specific information.

The option will currently hold the following attributes:
-fsdev fstype id=id,path=path_to_share
where
fstype: Type of the file system....
9f107513 05/03/2010 08:17 pm Anthony Liguori

virtio-9p: Add a virtio 9p device to qemu

This patch doesn't implement the 9p protocol handling
code. It adds a simple device which dump the protocol data.

[: Little-Endian to host format conversion]
[: Multiple-mounts support]...