[2/2] qemu-options.hx: Update virtfs command documentation

Clarify the virtfs option better

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 qemu-options.hx |  116 ++++++++++++++++++++++++++++++++++---------------------
 1 files changed, 72 insertions(+), 44 deletions(-)

"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> writes:

> Clarify the virtfs option better
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> ---
>  qemu-options.hx |  116 ++++++++++++++++++++++++++++++++++---------------------
>  1 files changed, 72 insertions(+), 44 deletions(-)
>
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 4789fe4..c6fb12c 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -483,6 +483,8 @@ possible drivers and properties, use @code{-device ?} and
>  @code{-device @var{driver},?}.
>  ETEXI
>  
> +DEFHEADING()
> +
>  DEFHEADING(File system options:)
>  
>  DEF("fsdev", HAS_ARG, QEMU_OPTION_fsdev,
> @@ -492,34 +494,54 @@ DEF("fsdev", HAS_ARG, QEMU_OPTION_fsdev,
>  
>  STEXI
>  
> -The general form of a File system device option is:
> -@table @option
> -
>  @item -fsdev @var{fstype} ,id=@var{id} [,@var{options}]
>  @findex -fsdev
> -Fstype is one of:
> -@option{local},
> -The specific Fstype will determine the applicable options.
> -
> -Options to each backend are described below.
> -
> -@item -fsdev local ,id=@var{id} ,path=@var{path} ,security_model=@var{security_model}[,cache=@var{cache}]
> -
> -Create a file-system-"device" for local-filesystem.
>  
> -@option{local} is only available on Linux.
> -
> -@option{path} specifies the path to be exported. @option{path} is required.
> +Define a new file system device. Valid options are
> +@table @option
> +@item local
> +This option create a file-system-"device" for local-filesystem.
> +Currently only local file system device is supported.
> +@item id=@var{id}
> +Identifier for this device
> +@item path=@var{path}
> +This option define the export path for the file system device.
> +Files below this path will be available for 9p client on the
> +guest.
> +@item security_model=@var{security_model}
> +This option define the security model to be used when exporting
> +the files. The supported security models are passthrough, mapped
> +and none. In passthrough security model, file are stored using
> +the same credentials as they are created on the guest. This require
> +qemu to run as root. In the mapped security model, some of the
> +file attributes like uid, gid, mode bits and link target are
> +stored as file attributes. Directories exported by this security
> +model cannot interact with other unix tools. "none" security model
> +is same as passthrough expect they won't report failures if

"expect"?  "except"?

> +the sever fails to set file attributes like ownership.
> +@item cache=@var{cache}
> +This is an optional argument. The support value is writethrough

"The support value"?  "The only supported value"?

> +This means thatthe host page cache will be used to read and write

"thatthe"  Use a spell-checker, please.

> +data but write notification will be sent to the guest only when
> +the data has been reported as written by the storage subsystem.
>  
> -@option{security_model} specifies the security model to be followed.
> -@option{security_model} is required.
> +@end table
>  
> -@option{cache} specifies whether to skip the host page cache.
> -@option{cache} is an optional argument.
> +-fsdev option is used along with -device driver "virtio-9p-pci"
> +Option for virtio-9p-pci driver are

Options (plural).

>  
> +@table @option
> +@item fsdev=@var{id}
> +This option specify the @var{id} value specified along with -fsdev option
> +@item mount_tag=@var{mount_tag}
> +This option specifies the tag name to be used by the guest
> +to mount this export point
>  @end table
> +
>  ETEXI
>  
> +DEFHEADING()
> +
>  DEFHEADING(Virtual File system pass-through options:)
>  
>  DEF("virtfs", HAS_ARG, QEMU_OPTION_virtfs,
> @@ -529,33 +551,39 @@ DEF("virtfs", HAS_ARG, QEMU_OPTION_virtfs,
>  
>  STEXI
>  
> -The general form of a Virtual File system pass-through option is:
> -@table @option
> -
> -@item -virtfs @var{fstype} [,@var{options}]
> -@findex -virtfs
> -Fstype is one of:
> -@option{local},
> -The specific Fstype will determine the applicable options.
> -
> -Options to each backend are described below.
> -
>  @item -virtfs local ,path=@var{path} ,mount_tag=@var{mount_tag} ,security_model=@var{security_model}[,cache=@var{cache}]
> +@findex -virtfs
>  
> -Create a Virtual file-system-pass through for local-filesystem.
> -
> -@option{local} is only available on Linux.
> -
> -@option{path} specifies the path to be exported. @option{path} is required.
> -
> -@option{security_model} specifies the security model to be followed.
> -@option{security_model} is required.
> -
> -@option{mount_tag} specifies the tag with which the exported file is mounted.
> -@option{mount_tag} is required.
> -
> -@option{cache} specifies whether to skip the host page cache.
> -@option{cache} is an optional argument.
> +The general form of a Virtual File system pass-through option is:
> +@table @option
> +@item local
> +This option create a file-system-"device" for local-filesystem.
> +Currently only local file system device is supported.
> +@item id=@var{id}
> +Identifier for this device
> +@item path=@var{path}
> +This option define the export path for the file system device.
> +Files below this path will be available for 9p client on the
> +guest.
> +@item mount_tag=@var{mount_tag}
> +This option specifies the tag name to be used by the guest
> +to mount this export point
> +@item security_model=@var{security_model}
> +This option define the security model to be used when exporting
> +the files. The supported security models are passthrough, mapped
> +and none. In passthrough security model, file are stored using
> +the same credentials as they are created on the guest. This require
> +qemu to run as root. In the mapped security model, some of the
> +file attributes like uid, gid, mode bits and link target are
> +stored as file attributes. Directories exported by this security
> +model cannot interact with other unix tools. "none" security model
> +is same as passthrough expect they won't report failures if
> +the sever fails to set file attributes like ownership.
> +@item cache=@var{cache}
> +This is an optional argument. The support value is writethrough
> +This means thatthe 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.

Same typos as above.

>  
>  @end table
>  ETEXI