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authorM. Mohan Kumar <mohan@in.ibm.com>2011-10-25 12:10:39 +0530
committerAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-10-31 12:34:17 +0530
commit2c74c2cb4bedddbfa67628fbd5f9273b4e0e9903 (patch)
tree308232ce3bd97b8e9641c88b396ed3e9c5009d90 /qemu-options.hx
parentf02b77c9bfc5c3ac93a89026f8c1d320f61f02c9 (diff)
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 <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx14
1 files changed, 10 insertions, 4 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index 5d2a7765e8..1baa381ab9 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -528,12 +528,12 @@ DEFHEADING(File system options:)
DEF("fsdev", HAS_ARG, QEMU_OPTION_fsdev,
"-fsdev fsdriver,id=id,path=path,[security_model={mapped|passthrough|none}]\n"
- " [,writeout=immediate]\n",
+ " [,writeout=immediate][,readonly]\n",
QEMU_ARCH_ALL)
STEXI
-@item -fsdev @var{fsdriver},id=@var{id},path=@var{path},[security_model=@var{security_model}][,writeout=@var{writeout}]
+@item -fsdev @var{fsdriver},id=@var{id},path=@var{path},[security_model=@var{security_model}][,writeout=@var{writeout}][,readonly]
@findex -fsdev
Define a new file system device. Valid options are:
@table @option
@@ -563,6 +563,9 @@ This is an optional argument. The only supported value is "immediate".
This means that host page cache will be used to read and write data but
write notification will be sent to the guest only when the data has been
reported as written by the storage subsystem.
+@item readonly
+Enables exporting 9p share as a readonly mount for guests. By default
+read-write access is given.
@end table
-fsdev option is used along with -device driver "virtio-9p-pci".
@@ -583,12 +586,12 @@ DEFHEADING(Virtual File system pass-through options:)
DEF("virtfs", HAS_ARG, QEMU_OPTION_virtfs,
"-virtfs local,path=path,mount_tag=tag,security_model=[mapped|passthrough|none]\n"
- " [,writeout=immediate]\n",
+ " [,writeout=immediate][,readonly]\n",
QEMU_ARCH_ALL)
STEXI
-@item -virtfs @var{fsdriver},path=@var{path},mount_tag=@var{mount_tag},security_model=@var{security_model}[,writeout=@var{writeout}]
+@item -virtfs @var{fsdriver},path=@var{path},mount_tag=@var{mount_tag},security_model=@var{security_model}[,writeout=@var{writeout}][,readonly]
@findex -virtfs
The general form of a Virtual File system pass-through options are:
@@ -619,6 +622,9 @@ This is an optional argument. The only supported value is "immediate".
This means that host page cache will be used to read and write data but
write notification will be sent to the guest only when the data has been
reported as written by the storage subsystem.
+@item readonly
+Enables exporting 9p share as a readonly mount for guests. By default
+read-write access is given.
@end table
ETEXI