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authorM. Mohan Kumar <mohan@in.ibm.com>2011-12-14 13:58:46 +0530
committerAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2012-01-04 21:23:53 +0530
commitf67e3ffd34ff8380a3e6d5fca0f6df440478c2ed (patch)
tree26afaf68846b5844cb10aba9436f3c20e69ad3a0
parentd090e452d4a0e30b59f983dfc5cde190b6088899 (diff)
hw/9pfs: Documentation changes related to proxy fs
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
-rw-r--r--qemu-options.hx25
1 files changed, 16 insertions, 9 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index a60191f6a..904d7514c 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -551,19 +551,19 @@ DEFHEADING()
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][,readonly]\n",
+ "-fsdev fsdriver,id=id[,path=path,][security_model={mapped|passthrough|none}]\n"
+ " [,writeout=immediate][,readonly][,sock_fd=sock_fd]\n",
QEMU_ARCH_ALL)
STEXI
-@item -fsdev @var{fsdriver},id=@var{id},path=@var{path},[security_model=@var{security_model}][,writeout=@var{writeout}][,readonly]
+@item -fsdev @var{fsdriver},id=@var{id},path=@var{path},[security_model=@var{security_model}][,writeout=@var{writeout}][,readonly][,sock_fd=@var{sock_fd}]
@findex -fsdev
Define a new file system device. Valid options are:
@table @option
@item @var{fsdriver}
This option specifies the fs driver backend to use.
-Currently "local" and "handle" file system drivers are supported.
+Currently "local", "handle" and "proxy" file system drivers are supported.
@item id=@var{id}
Specifies identifier for this device
@item path=@var{path}
@@ -580,7 +580,7 @@ file attributes. Directories exported by this security model cannot
interact with other unix tools. "none" security model is same as
passthrough except the sever won't report failures if it fails to
set file attributes like ownership. Security model is mandatory
-only for local fsdriver. Other fsdrivers (like handle) don't take
+only for local fsdriver. Other fsdrivers (like handle, proxy) don't take
security model as a parameter.
@item writeout=@var{writeout}
This is an optional argument. The only supported value is "immediate".
@@ -590,6 +590,10 @@ 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.
+@item sock_fd=@var{sock_fd}
+Enables proxy filesystem driver to use passed socket descriptor for
+communicating with virtfs-proxy-helper. Usually a helper like libvirt
+will create socketpair and pass one of the fds as sock_fd
@end table
-fsdev option is used along with -device driver "virtio-9p-pci".
@@ -610,19 +614,19 @@ 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][,readonly]\n",
+ " [,writeout=immediate][,readonly][,sock_fd=sock_fd]\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}][,readonly]
+@item -virtfs @var{fsdriver}[,path=@var{path}],mount_tag=@var{mount_tag}[,security_model=@var{security_model}][,writeout=@var{writeout}][,readonly][,sock_fd=@var{sock_fd}]
@findex -virtfs
The general form of a Virtual File system pass-through options are:
@table @option
@item @var{fsdriver}
This option specifies the fs driver backend to use.
-Currently "local" and "handle" file system drivers are supported.
+Currently "local", "handle" and "proxy" file system drivers are supported.
@item id=@var{id}
Specifies identifier for this device
@item path=@var{path}
@@ -639,7 +643,7 @@ file attributes. Directories exported by this security model cannot
interact with other unix tools. "none" security model is same as
passthrough except the sever won't report failures if it fails to
set file attributes like ownership. Security model is mandatory only
-for local fsdriver. Other fsdrivers (like handle) don't take security
+for local fsdriver. Other fsdrivers (like handle, proxy) don't take security
model as a parameter.
@item writeout=@var{writeout}
This is an optional argument. The only supported value is "immediate".
@@ -649,6 +653,9 @@ 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.
+@item sock_fd
+Enables proxy filesystem driver to use passed 'sock_fd' as the socket
+descriptor for interfacing with virtfs-proxy-helper
@end table
ETEXI