path: root/fsdev
diff options
authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-10-25 12:10:40 +0530
committerAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-10-31 12:34:18 +0530
commit9db221ae73a18e0bd2b1ee6c7dc1904ed06fb464 (patch)
treee07b64eb5813824d4840e5e3f5abd2d6017dc3c0 /fsdev
parentcc720ddb5435ceaa4cda397ca3e74b099752b763 (diff)
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 mount -t 9p -oversion=9p2000.L,trans=virtio v_synth <mountpint> Synthetic file system enabled different qemu subsystem to register callbacks for read and write events from guest. The subsystem can create directories and files in the synthetic file system as show in ex below qemu_v9fs_synth_mkdir(NULL, 0777, "test2", &node); qemu_v9fs_synth_add_file(node, 0777, "testfile", my_test_read, NULL, NULL); Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'fsdev')
2 files changed, 2 insertions, 0 deletions
diff --git a/fsdev/qemu-fsdev.c b/fsdev/qemu-fsdev.c
index 27d10cb3b3..7fd2aa7793 100644
--- a/fsdev/qemu-fsdev.c
+++ b/fsdev/qemu-fsdev.c
@@ -24,6 +24,7 @@ static QTAILQ_HEAD(FsDriverEntry_head, FsDriverListEntry) fsdriver_entries =
static FsDriverTable FsDrivers[] = {
{ .name = "local", .ops = &local_ops},
{ .name = "handle", .ops = &handle_ops},
+ { .name = "synth", .ops = &synth_ops},
int qemu_fsdev_add(QemuOpts *opts)
diff --git a/fsdev/qemu-fsdev.h b/fsdev/qemu-fsdev.h
index 5099085720..8ef847374a 100644
--- a/fsdev/qemu-fsdev.h
+++ b/fsdev/qemu-fsdev.h
@@ -53,4 +53,5 @@ int qemu_fsdev_add(QemuOpts *opts);
FsDriverEntry *get_fsdev_fsentry(char *id);
extern FileOperations local_ops;
extern FileOperations handle_ops;
+extern FileOperations synth_ops;