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Command line patches for 2017-12-18 

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Merge remote-tracking branch 'remotes/armbru/tags/pull-cmdline-2017-12-18-v2' into staging

Command line patches for 2017-12-18

# gpg: Signature made Wed 20 Dec 2017 08:11:57 GMT
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-cmdline-2017-12-18-v2:
  option: Drop unused get_param_value(), get_next_param_value()
  option: Remove shadowing opt decl from qemu_opt_print()
  qemu-options: Belatedly document --watchdog-action inject-nmi
  qemu-options: Polish section "Character device options"
  qemu-options: Polish section "TPM device options"
  qemu-options: Add missing -iscsi Texinfo documentation
  qemu-options: Move -iscsi under "Block device options"
  qemu-options qemu-doc: Move "Device URL Syntax" to qemu-doc
  qemu-options: Fix markup of -netdev l2tpv3
  qemu-options: Remove stray colons from output of --help

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-12-20 13:20:47 +00:00
parent f1faf2d59c 3e05349de8
commit 200780a3a3
6 changed files with 267 additions and 301 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/qemu/option.h
View File

@ -31,11 +31,6 @@
const char *get_opt_name(char *buf, int buf_size, const char *p, char delim);
const char *get_opt_value(char *buf, int buf_size, const char *p);
int get_next_param_value(char *buf, int buf_size,
const char *tag, const char **pstr);
int get_param_value(char *buf, int buf_size,
const char *tag, const char *str);
void parse_option_size(const char *name, const char *value,
uint64_t *ret, Error **errp);

216
qemu-doc.texi
View File

@ -245,6 +245,222 @@ targets do not need a disk image.
@c man end
@subsection Device URL Syntax
@c TODO merge this with section Disk Images
@c man begin NOTES
In addition to using normal file images for the emulated storage devices,
QEMU can also use networked resources such as iSCSI devices. These are
specified using a special URL syntax.
@table @option
@item iSCSI
iSCSI support allows QEMU to access iSCSI resources directly and use as
images for the guest storage. Both disk and cdrom images are supported.
Syntax for specifying iSCSI LUNs is
``iscsi://<target-ip>[:<port>]/<target-iqn>/<lun>''
By default qemu will use the iSCSI initiator-name
'iqn.2008-11.org.linux-kvm[:<name>]' but this can also be set from the command
line or a configuration file.
Since version Qemu 2.4 it is possible to specify a iSCSI request timeout to detect
stalled requests and force a reestablishment of the session. The timeout
is specified in seconds. The default is 0 which means no timeout. Libiscsi
1.15.0 or greater is required for this feature.
Example (without authentication):
@example
qemu-system-i386 -iscsi initiator-name=iqn.2001-04.com.example:my-initiator \
-cdrom iscsi://192.0.2.1/iqn.2001-04.com.example/2 \
-drive file=iscsi://192.0.2.1/iqn.2001-04.com.example/1
@end example
Example (CHAP username/password via URL):
@example
qemu-system-i386 -drive file=iscsi://user%password@@192.0.2.1/iqn.2001-04.com.example/1
@end example
Example (CHAP username/password via environment variables):
@example
LIBISCSI_CHAP_USERNAME="user" \
LIBISCSI_CHAP_PASSWORD="password" \
qemu-system-i386 -drive file=iscsi://192.0.2.1/iqn.2001-04.com.example/1
@end example
@item NBD
QEMU supports NBD (Network Block Devices) both using TCP protocol as well
as Unix Domain Sockets.
Syntax for specifying a NBD device using TCP
``nbd:<server-ip>:<port>[:exportname=<export>]''
Syntax for specifying a NBD device using Unix Domain Sockets
``nbd:unix:<domain-socket>[:exportname=<export>]''
Example for TCP
@example
qemu-system-i386 --drive file=nbd:192.0.2.1:30000
@end example
Example for Unix Domain Sockets
@example
qemu-system-i386 --drive file=nbd:unix:/tmp/nbd-socket
@end example
@item SSH
QEMU supports SSH (Secure Shell) access to remote disks.
Examples:
@example
qemu-system-i386 -drive file=ssh://user@@host/path/to/disk.img
qemu-system-i386 -drive file.driver=ssh,file.user=user,file.host=host,file.port=22,file.path=/path/to/disk.img
@end example
Currently authentication must be done using ssh-agent. Other
authentication methods may be supported in future.
@item Sheepdog
Sheepdog is a distributed storage system for QEMU.
QEMU supports using either local sheepdog devices or remote networked
devices.
Syntax for specifying a sheepdog device
@example
sheepdog[+tcp|+unix]://[host:port]/vdiname[?socket=path][#snapid|#tag]
@end example
Example
@example
qemu-system-i386 --drive file=sheepdog://192.0.2.1:30000/MyVirtualMachine
@end example
See also @url{https://sheepdog.github.io/sheepdog/}.
@item GlusterFS
GlusterFS is a user space distributed file system.
QEMU supports the use of GlusterFS volumes for hosting VM disk images using
TCP, Unix Domain Sockets and RDMA transport protocols.
Syntax for specifying a VM disk image on GlusterFS volume is
@example
URI:
gluster[+type]://[host[:port]]/volume/path[?socket=...][,debug=N][,logfile=...]
JSON:
'json:@{"driver":"qcow2","file":@{"driver":"gluster","volume":"testvol","path":"a.img","debug":N,"logfile":"...",
@ "server":[@{"type":"tcp","host":"...","port":"..."@},
@ @{"type":"unix","socket":"..."@}]@}@}'
@end example
Example
@example
URI:
qemu-system-x86_64 --drive file=gluster://192.0.2.1/testvol/a.img,
@ file.debug=9,file.logfile=/var/log/qemu-gluster.log
JSON:
qemu-system-x86_64 'json:@{"driver":"qcow2",
@ "file":@{"driver":"gluster",
@ "volume":"testvol","path":"a.img",
@ "debug":9,"logfile":"/var/log/qemu-gluster.log",
@ "server":[@{"type":"tcp","host":"1.2.3.4","port":24007@},
@ @{"type":"unix","socket":"/var/run/glusterd.socket"@}]@}@}'
qemu-system-x86_64 -drive driver=qcow2,file.driver=gluster,file.volume=testvol,file.path=/path/a.img,
@ file.debug=9,file.logfile=/var/log/qemu-gluster.log,
@ file.server.0.type=tcp,file.server.0.host=1.2.3.4,file.server.0.port=24007,
@ file.server.1.type=unix,file.server.1.socket=/var/run/glusterd.socket
@end example
See also @url{http://www.gluster.org}.
@item HTTP/HTTPS/FTP/FTPS
QEMU supports read-only access to files accessed over http(s) and ftp(s).
Syntax using a single filename:
@example
<protocol>://[<username>[:<password>]@@]<host>/<path>
@end example
where:
@table @option
@item protocol
'http', 'https', 'ftp', or 'ftps'.
@item username
Optional username for authentication to the remote server.
@item password
Optional password for authentication to the remote server.
@item host
Address of the remote server.
@item path
Path on the remote server, including any query string.
@end table
The following options are also supported:
@table @option
@item url
The full URL when passing options to the driver explicitly.
@item readahead
The amount of data to read ahead with each range request to the remote server.
This value may optionally have the suffix 'T', 'G', 'M', 'K', 'k' or 'b'. If it
does not have a suffix, it will be assumed to be in bytes. The value must be a
multiple of 512 bytes. It defaults to 256k.
@item sslverify
Whether to verify the remote server's certificate when connecting over SSL. It
can have the value 'on' or 'off'. It defaults to 'on'.
@item cookie
Send this cookie (it can also be a list of cookies separated by ';') with
each outgoing request. Only supported when using protocols such as HTTP
which support cookies, otherwise ignored.
@item timeout
Set the timeout in seconds of the CURL connection. This timeout is the time
that CURL waits for a response from the remote server to get the size of the
image to be downloaded. If not set, the default timeout of 5 seconds is used.
@end table
Note that when passing options to qemu explicitly, @option{driver} is the value
of <protocol>.
Example: boot from a remote Fedora 20 live ISO image
@example
qemu-system-x86_64 --drive media=cdrom,file=http://dl.fedoraproject.org/pub/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso,readonly
qemu-system-x86_64 --drive media=cdrom,file.driver=http,file.url=http://dl.fedoraproject.org/pub/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso,readonly
@end example
Example: boot from a remote Fedora 20 cloud image using a local overlay for
writes, copy-on-read, and a readahead of 64k
@example
qemu-img create -f qcow2 -o backing_file='json:@{"file.driver":"http",, "file.url":"https://dl.fedoraproject.org/pub/fedora/linux/releases/20/Images/x86_64/Fedora-x86_64-20-20131211.1-sda.qcow2",, "file.readahead":"64k"@}' /tmp/Fedora-x86_64-20-20131211.1-sda.qcow2
qemu-system-x86_64 -drive file=/tmp/Fedora-x86_64-20-20131211.1-sda.qcow2,copy-on-read=on
@end example
Example: boot from an image stored on a VMware vSphere server with a self-signed
certificate using a local overlay for writes, a readahead of 64k and a timeout
of 10 seconds.
@example
qemu-img create -f qcow2 -o backing_file='json:@{"file.driver":"https",, "file.url":"https://user:password@@vsphere.example.com/folder/test/test-flat.vmdk?dcPath=Datacenter&dsName=datastore1",, "file.sslverify":"off",, "file.readahead":"64k",, "file.timeout":10@}' /tmp/test.qcow2
qemu-system-x86_64 -drive file=/tmp/test.qcow2
@end example
@end table
@c man end
@node pcsys_keys
@section Keys in the graphical frontends

2
qemu-options-wrapper.h
View File

@ -14,7 +14,7 @@
#define ARCHHEADING(text, arch_mask) \
if ((arch_mask) & arch_type) \
puts(stringify(text) ":");
puts(stringify(text));
#define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)

306
qemu-options.hx
View File

@ -6,7 +6,7 @@ HXCOMM construct option structures, enums and help message for specified
HXCOMM architectures.
HXCOMM HXCOMM can be used for comments, discarded from both texi and C
DEFHEADING(Standard options)
DEFHEADING(Standard options:)
STEXI
@table @option
ETEXI
@ -584,7 +584,7 @@ STEXI
ETEXI
DEFHEADING()
DEFHEADING(Block device options)
DEFHEADING(Block device options:)
STEXI
@table @option
ETEXI
@ -1182,12 +1182,25 @@ STEXI
Create synthetic file system image
ETEXI
DEF("iscsi", HAS_ARG, QEMU_OPTION_iscsi,
"-iscsi [user=user][,password=password]\n"
" [,header-digest=CRC32C|CR32C-NONE|NONE-CRC32C|NONE\n"
" [,initiator-name=initiator-iqn][,id=target-iqn]\n"
" [,timeout=timeout]\n"
" iSCSI session parameters\n", QEMU_ARCH_ALL)
STEXI
@item -iscsi
@findex -iscsi
Configure iSCSI session parameters.
ETEXI
STEXI
@end table
ETEXI
DEFHEADING()
DEFHEADING(USB options)
DEFHEADING(USB options:)
STEXI
@table @option
ETEXI
@ -1252,7 +1265,7 @@ STEXI
ETEXI
DEFHEADING()
DEFHEADING(Display options)
DEFHEADING(Display options:)
STEXI
@table @option
ETEXI
@ -1789,7 +1802,7 @@ STEXI
ETEXI
ARCHHEADING(, QEMU_ARCH_I386)
ARCHHEADING(i386 target only, QEMU_ARCH_I386)
ARCHHEADING(i386 target only:, QEMU_ARCH_I386)
STEXI
@table @option
ETEXI
@ -1905,7 +1918,7 @@ STEXI
ETEXI
DEFHEADING()
DEFHEADING(Network options)
DEFHEADING(Network options:)
STEXI
@table @option
ETEXI
@ -2377,6 +2390,7 @@ two systems. It is present in routers, firewalls and the Linux kernel
This transport allows a VM to communicate to another VM, router or firewall directly.
@table @option
@item src=@var{srcaddr}
source address (mandatory)
@item dst=@var{dstaddr}
@ -2404,6 +2418,7 @@ draft-mkonstan-l2tpext-keyed-ipv6-tunnel-00
networks which have packet reorder.
@item offset=@var{offset}
Add an extra offset between header and data
@end table
For example, to attach a VM running on host 4.3.2.1 via L2TPv3 to the bridge br-lan
on the remote Linux host 1.2.3.4:
@ -2486,12 +2501,7 @@ STEXI
ETEXI
DEFHEADING()
DEFHEADING(Character device options)
STEXI
The general form of a character device option is:
@table @option
ETEXI
DEFHEADING(Character device options:)
DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
"-chardev help\n"
@ -2537,6 +2547,9 @@ DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
)
STEXI
The general form of a character device option is:
@table @option
@item -chardev @var{backend} ,id=@var{id} [,mux=on|off] [,@var{options}]
@findex -chardev
Backend is one of:
@ -2560,7 +2573,7 @@ Backend is one of:
@option{spiceport}.
The specific backend will determine the applicable options.
Use "-chardev help" to print all available chardev backend types.
Use @code{-chardev help} to print all available chardev backend types.
All devices must have an id, which can be any string up to 127 characters long.
It is used to uniquely identify this device in other command line directives.
@ -2615,8 +2628,11 @@ to a file to record all data transmitted via the backend. The @option{logappend}
option controls whether the log file will be truncated or appended to when
opened.
Further options to each backend are described below.
@end table
The available backends are:
@table @option
@item -chardev null ,id=@var{id}
A void device. This device will not emit any data, and will drop any data it
receives. The null backend does not take any options.
@ -2819,237 +2835,7 @@ STEXI
ETEXI
DEFHEADING()
DEFHEADING(Device URL Syntax)
STEXI
In addition to using normal file images for the emulated storage devices,
QEMU can also use networked resources such as iSCSI devices. These are
specified using a special URL syntax.
@table @option
@item iSCSI
iSCSI support allows QEMU to access iSCSI resources directly and use as
images for the guest storage. Both disk and cdrom images are supported.
Syntax for specifying iSCSI LUNs is
``iscsi://<target-ip>[:<port>]/<target-iqn>/<lun>''
By default qemu will use the iSCSI initiator-name
'iqn.2008-11.org.linux-kvm[:<name>]' but this can also be set from the command
line or a configuration file.
Since version Qemu 2.4 it is possible to specify a iSCSI request timeout to detect
stalled requests and force a reestablishment of the session. The timeout
is specified in seconds. The default is 0 which means no timeout. Libiscsi
1.15.0 or greater is required for this feature.
Example (without authentication):
@example
qemu-system-i386 -iscsi initiator-name=iqn.2001-04.com.example:my-initiator \
-cdrom iscsi://192.0.2.1/iqn.2001-04.com.example/2 \
-drive file=iscsi://192.0.2.1/iqn.2001-04.com.example/1
@end example
Example (CHAP username/password via URL):
@example
qemu-system-i386 -drive file=iscsi://user%password@@192.0.2.1/iqn.2001-04.com.example/1
@end example
Example (CHAP username/password via environment variables):
@example
LIBISCSI_CHAP_USERNAME="user" \
LIBISCSI_CHAP_PASSWORD="password" \
qemu-system-i386 -drive file=iscsi://192.0.2.1/iqn.2001-04.com.example/1
@end example
iSCSI support is an optional feature of QEMU and only available when
compiled and linked against libiscsi.
ETEXI
DEF("iscsi", HAS_ARG, QEMU_OPTION_iscsi,
"-iscsi [user=user][,password=password]\n"
" [,header-digest=CRC32C|CR32C-NONE|NONE-CRC32C|NONE\n"
" [,initiator-name=initiator-iqn][,id=target-iqn]\n"
" [,timeout=timeout]\n"
" iSCSI session parameters\n", QEMU_ARCH_ALL)
STEXI
iSCSI parameters such as username and password can also be specified via
a configuration file. See qemu-doc for more information and examples.
@item NBD
QEMU supports NBD (Network Block Devices) both using TCP protocol as well
as Unix Domain Sockets.
Syntax for specifying a NBD device using TCP
``nbd:<server-ip>:<port>[:exportname=<export>]''
Syntax for specifying a NBD device using Unix Domain Sockets
``nbd:unix:<domain-socket>[:exportname=<export>]''
Example for TCP
@example
qemu-system-i386 --drive file=nbd:192.0.2.1:30000
@end example
Example for Unix Domain Sockets
@example
qemu-system-i386 --drive file=nbd:unix:/tmp/nbd-socket
@end example
@item SSH
QEMU supports SSH (Secure Shell) access to remote disks.
Examples:
@example
qemu-system-i386 -drive file=ssh://user@@host/path/to/disk.img
qemu-system-i386 -drive file.driver=ssh,file.user=user,file.host=host,file.port=22,file.path=/path/to/disk.img
@end example
Currently authentication must be done using ssh-agent. Other
authentication methods may be supported in future.
@item Sheepdog
Sheepdog is a distributed storage system for QEMU.
QEMU supports using either local sheepdog devices or remote networked
devices.
Syntax for specifying a sheepdog device
@example
sheepdog[+tcp|+unix]://[host:port]/vdiname[?socket=path][#snapid|#tag]
@end example
Example
@example
qemu-system-i386 --drive file=sheepdog://192.0.2.1:30000/MyVirtualMachine
@end example
See also @url{https://sheepdog.github.io/sheepdog/}.
@item GlusterFS
GlusterFS is a user space distributed file system.
QEMU supports the use of GlusterFS volumes for hosting VM disk images using
TCP, Unix Domain Sockets and RDMA transport protocols.
Syntax for specifying a VM disk image on GlusterFS volume is
@example
URI:
gluster[+type]://[host[:port]]/volume/path[?socket=...][,debug=N][,logfile=...]
JSON:
'json:@{"driver":"qcow2","file":@{"driver":"gluster","volume":"testvol","path":"a.img","debug":N,"logfile":"...",
@ "server":[@{"type":"tcp","host":"...","port":"..."@},
@ @{"type":"unix","socket":"..."@}]@}@}'
@end example
Example
@example
URI:
qemu-system-x86_64 --drive file=gluster://192.0.2.1/testvol/a.img,
@ file.debug=9,file.logfile=/var/log/qemu-gluster.log
JSON:
qemu-system-x86_64 'json:@{"driver":"qcow2",
@ "file":@{"driver":"gluster",
@ "volume":"testvol","path":"a.img",
@ "debug":9,"logfile":"/var/log/qemu-gluster.log",
@ "server":[@{"type":"tcp","host":"1.2.3.4","port":24007@},
@ @{"type":"unix","socket":"/var/run/glusterd.socket"@}]@}@}'
qemu-system-x86_64 -drive driver=qcow2,file.driver=gluster,file.volume=testvol,file.path=/path/a.img,
@ file.debug=9,file.logfile=/var/log/qemu-gluster.log,
@ file.server.0.type=tcp,file.server.0.host=1.2.3.4,file.server.0.port=24007,
@ file.server.1.type=unix,file.server.1.socket=/var/run/glusterd.socket
@end example
See also @url{http://www.gluster.org}.
@item HTTP/HTTPS/FTP/FTPS
QEMU supports read-only access to files accessed over http(s) and ftp(s).
Syntax using a single filename:
@example
<protocol>://[<username>[:<password>]@@]<host>/<path>
@end example
where:
@table @option
@item protocol
'http', 'https', 'ftp', or 'ftps'.
@item username
Optional username for authentication to the remote server.
@item password
Optional password for authentication to the remote server.
@item host
Address of the remote server.
@item path
Path on the remote server, including any query string.
@end table
The following options are also supported:
@table @option
@item url
The full URL when passing options to the driver explicitly.
@item readahead
The amount of data to read ahead with each range request to the remote server.
This value may optionally have the suffix 'T', 'G', 'M', 'K', 'k' or 'b'. If it
does not have a suffix, it will be assumed to be in bytes. The value must be a
multiple of 512 bytes. It defaults to 256k.
@item sslverify
Whether to verify the remote server's certificate when connecting over SSL. It
can have the value 'on' or 'off'. It defaults to 'on'.
@item cookie
Send this cookie (it can also be a list of cookies separated by ';') with
each outgoing request. Only supported when using protocols such as HTTP
which support cookies, otherwise ignored.
@item timeout
Set the timeout in seconds of the CURL connection. This timeout is the time
that CURL waits for a response from the remote server to get the size of the
image to be downloaded. If not set, the default timeout of 5 seconds is used.
@end table
Note that when passing options to qemu explicitly, @option{driver} is the value
of <protocol>.
Example: boot from a remote Fedora 20 live ISO image
@example
qemu-system-x86_64 --drive media=cdrom,file=http://dl.fedoraproject.org/pub/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso,readonly
qemu-system-x86_64 --drive media=cdrom,file.driver=http,file.url=http://dl.fedoraproject.org/pub/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso,readonly
@end example
Example: boot from a remote Fedora 20 cloud image using a local overlay for
writes, copy-on-read, and a readahead of 64k
@example
qemu-img create -f qcow2 -o backing_file='json:@{"file.driver":"http",, "file.url":"https://dl.fedoraproject.org/pub/fedora/linux/releases/20/Images/x86_64/Fedora-x86_64-20-20131211.1-sda.qcow2",, "file.readahead":"64k"@}' /tmp/Fedora-x86_64-20-20131211.1-sda.qcow2
qemu-system-x86_64 -drive file=/tmp/Fedora-x86_64-20-20131211.1-sda.qcow2,copy-on-read=on
@end example
Example: boot from an image stored on a VMware vSphere server with a self-signed
certificate using a local overlay for writes, a readahead of 64k and a timeout
of 10 seconds.
@example
qemu-img create -f qcow2 -o backing_file='json:@{"file.driver":"https",, "file.url":"https://user:password@@vsphere.example.com/folder/test/test-flat.vmdk?dcPath=Datacenter&dsName=datastore1",, "file.sslverify":"off",, "file.readahead":"64k",, "file.timeout":10@}' /tmp/test.qcow2
qemu-system-x86_64 -drive file=/tmp/test.qcow2
@end example
ETEXI
STEXI
@end table
ETEXI
DEFHEADING(Bluetooth(R) options)
DEFHEADING(Bluetooth(R) options:)
STEXI
@table @option
ETEXI
@ -3125,7 +2911,7 @@ ETEXI
DEFHEADING()
#ifdef CONFIG_TPM
DEFHEADING(TPM device options)
DEFHEADING(TPM device options:)
DEF("tpmdev", HAS_ARG, QEMU_OPTION_tpmdev, \
"-tpmdev passthrough,id=id[,path=path][,cancel-path=path]\n"
@ -3142,19 +2928,18 @@ The general form of a TPM device option is:
@item -tpmdev @var{backend} ,id=@var{id} [,@var{options}]
@findex -tpmdev
Backend type must be either one of the following:
@option{passthrough}, @option{emulator}.
The specific backend type will determine the applicable options.
The @code{-tpmdev} option creates the TPM backend and requires a
@code{-device} option that specifies the TPM frontend interface model.
Options to each backend are described below.
Use @code{-tpmdev help} to print all available TPM backend types.
Use 'help' to print all available TPM backend types.
@example
qemu -tpmdev help
@end example
@end table
The available backends are:
@table @option
@item -tpmdev passthrough, id=@var{id}, path=@var{path}, cancel-path=@var{cancel-path}
@ -3207,15 +2992,16 @@ To create a TPM emulator backend device with chardev socket backend:
@end example
@end table
ETEXI
STEXI
@end table
ETEXI
DEFHEADING()
#endif
DEFHEADING(Linux/Multiboot boot specific)
DEFHEADING(Linux/Multiboot boot specific:)
STEXI
When using these options, you can use a given Linux or Multiboot
@ -3271,7 +3057,7 @@ STEXI
ETEXI
DEFHEADING()
DEFHEADING(Debug/Expert options)
DEFHEADING(Debug/Expert options:)
STEXI
@table @option
ETEXI
@ -3837,7 +3623,7 @@ A virtual watchdog for s390x backed by the diagnose 288 hypercall
ETEXI
DEF("watchdog-action", HAS_ARG, QEMU_OPTION_watchdog_action, \
"-watchdog-action reset|shutdown|poweroff|pause|debug|none\n" \
"-watchdog-action reset|shutdown|poweroff|inject-nmi|pause|debug|none\n" \
" action when watchdog fires [default=reset]\n",
QEMU_ARCH_ALL)
STEXI
@ -3851,6 +3637,7 @@ The default is
Other possible actions are:
@code{shutdown} (attempt to gracefully shutdown the guest),
@code{poweroff} (forcefully poweroff the guest),
@code{inject-nmi} (inject a NMI into the guest),
@code{pause} (pause the guest),
@code{debug} (print a debug message and continue), or
@code{none} (do nothing).
@ -4178,7 +3965,8 @@ STEXI
@end table
ETEXI
DEFHEADING()
DEFHEADING(Generic object creation)
DEFHEADING(Generic object creation:)
STEXI
@table @option
ETEXI

3
scripts/hxtool
View File

@ -19,7 +19,8 @@ hxtoh()
print_texi_heading()
{
if test "$*" != ""; then
printf "@subsection %s\n" "$*"
title="$*"
printf "@subsection %s\n" "${title%:}"
fi
}

36
util/qemu-option.c
View File

@ -91,40 +91,6 @@ const char *get_opt_value(char *buf, int buf_size, const char *p)
return p;
}
int get_next_param_value(char *buf, int buf_size,
const char *tag, const char **pstr)
{
const char *p;
char option[128];
p = *pstr;
for(;;) {
p = get_opt_name(option, sizeof(option), p, '=');
if (*p != '=')
break;
p++;
if (!strcmp(tag, option)) {
*pstr = get_opt_value(buf, buf_size, p);
if (**pstr == ',') {
(*pstr)++;
}
return strlen(buf);
} else {
p = get_opt_value(NULL, 0, p);
}
if (*p != ',')
break;
p++;
}
return 0;
}
int get_param_value(char *buf, int buf_size,
const char *tag, const char *str)
{
return get_next_param_value(buf, buf_size, tag, &str);
}
static void parse_option_bool(const char *name, const char *value, bool *ret,
Error **errp)
{
@ -766,7 +732,7 @@ void qemu_opts_print(QemuOpts *opts, const char *separator)
}
for (; desc && desc->name; desc++) {
const char *value;
QemuOpt *opt = qemu_opt_find(opts, desc->name);
opt = qemu_opt_find(opts, desc->name);
value = opt ? opt->str : desc->def_value_str;
if (!value) {