" memory-encryption=@var{} memory encryption object to use (default=none)\n"
" hmat=on|off controls ACPI HMAT support (default=off)\n"
" memory-backend='backend-id' specifies explicitly provided backend for main RAM (default=none)\n"
- " cxl-fmw.0.targets.0=firsttarget,cxl-fmw.0.targets.1=secondtarget,cxl-fmw.0.size=size[,cxl-fmw.0.interleave-granularity=granularity]\n"
- " zpcii-disable=on|off disables zPCI interpretation facilities (default=off)\n",
+ " cxl-fmw.0.targets.0=firsttarget,cxl-fmw.0.targets.1=secondtarget,cxl-fmw.0.size=size[,cxl-fmw.0.interleave-granularity=granularity]\n",
QEMU_ARCH_ALL)
SRST
``-machine [type=]name[,prop=value[,...]]``
interleave requirements before enabling the memory devices.
``targets.X=target`` provides the mapping to CXL host bridges
- which may be identified by the id provied in the -device entry.
+ which may be identified by the id provided in the -device entry.
Multiple entries are needed to specify all the targets when
the fixed memory window represents interleaved memory. X is the
target index from 0.
::
-machine cxl-fmw.0.targets.0=cxl.0,cxl-fmw.0.targets.1=cxl.1,cxl-fmw.0.size=128G,cxl-fmw.0.interleave-granularity=512k
-
- ``zpcii-disable=on|off``
- Disables zPCI interpretation facilties on s390-ccw hosts.
- This feature can be used to disable hardware virtual assists
- related to zPCI devices. The default is off.
ERST
DEF("M", HAS_ARG, QEMU_OPTION_M,
::
-smp 2
+
+ Note: The cluster topology will only be generated in ACPI and exposed
+ to guest if it's explicitly specified in -smp.
ERST
DEF("numa", HAS_ARG, QEMU_OPTION_numa,
\
``-numa cpu,node-id=node[,socket-id=x][,core-id=y][,thread-id=z]``
\
-``-numa hmat-lb,initiator=node,target=node,hierarchy=hierarchy,data-type=tpye[,latency=lat][,bandwidth=bw]``
+``-numa hmat-lb,initiator=node,target=node,hierarchy=hierarchy,data-type=type[,latency=lat][,bandwidth=bw]``
\
``-numa hmat-cache,node-id=node,size=size,level=level[,associativity=str][,policy=str][,line=size]``
Define a NUMA node and assign RAM and VCPUs to it. Set the NUMA
details on the external interface.
``-device isa-ipmi-kcs,bmc=id[,ioport=val][,irq=val]``
- Add a KCS IPMI interafce on the ISA bus. This also adds a
+ Add a KCS IPMI interface on the ISA bus. This also adds a
corresponding ACPI and SMBIOS entries, if appropriate.
``bmc=id``
is 0xe4 and the default interrupt is 5.
``-device pci-ipmi-kcs,bmc=id``
- Add a KCS IPMI interafce on the PCI bus.
+ Add a KCS IPMI interface on the PCI bus.
``bmc=id``
The BMC to connect to, one of ipmi-bmc-sim or ipmi-bmc-extern above.
directory on host is made directly accessible by guest as a pass-through
file system by using the 9P network protocol for communication between
host and guests, if desired even accessible, shared by several guests
- simultaniously.
+ simultaneously.
Note that ``-virtfs`` is actually just a convenience shortcut for its
generalized form ``-fsdev -device virtio-9p-pci``.
"-no-hpet disable HPET\n", QEMU_ARCH_I386)
SRST
``-no-hpet``
- Disable HPET support.
+ Disable HPET support. Deprecated, use '-machine hpet=off' instead.
ERST
DEF("acpitable", HAS_ARG, QEMU_OPTION_acpitable,
"-netdev socket,id=str[,fd=h][,udp=host:port][,localaddr=host:port]\n"
" configure a network backend to connect to another network\n"
" using an UDP tunnel\n"
+ "-netdev stream,id=str[,server=on|off],addr.type=inet,addr.host=host,addr.port=port[,to=maxport][,numeric=on|off][,keep-alive=on|off][,mptcp=on|off][,addr.ipv4=on|off][,addr.ipv6=on|off]\n"
+ "-netdev stream,id=str[,server=on|off],addr.type=unix,addr.path=path[,abstract=on|off][,tight=on|off]\n"
+ "-netdev stream,id=str[,server=on|off],addr.type=fd,addr.str=file-descriptor\n"
+ " configure a network backend to connect to another network\n"
+ " using a socket connection in stream mode.\n"
+ "-netdev dgram,id=str,remote.type=inet,remote.host=maddr,remote.port=port[,local.type=inet,local.host=addr]\n"
+ "-netdev dgram,id=str,remote.type=inet,remote.host=maddr,remote.port=port[,local.type=fd,local.str=file-descriptor]\n"
+ " configure a network backend to connect to a multicast maddr and port\n"
+ " use ``local.host=addr`` to specify the host address to send packets from\n"
+ "-netdev dgram,id=str,local.type=inet,local.host=addr,local.port=port[,remote.type=inet,remote.host=addr,remote.port=port]\n"
+ "-netdev dgram,id=str,local.type=unix,local.path=path[,remote.type=unix,remote.path=path]\n"
+ "-netdev dgram,id=str,local.type=fd,local.str=file-descriptor\n"
+ " configure a network backend to connect to another network\n"
+ " using an UDP tunnel\n"
#ifdef CONFIG_VDE
"-netdev vde,id=str[,sock=socketpath][,port=n][,group=groupname][,mode=octalmode]\n"
" configure a network backend to connect to port 'n' of a vde switch\n"
" configure a vhost-user network, backed by a chardev 'dev'\n"
#endif
#ifdef __linux__
- "-netdev vhost-vdpa,id=str,vhostdev=/path/to/dev\n"
+ "-netdev vhost-vdpa,id=str[,vhostdev=/path/to/dev][,vhostfd=h]\n"
" configure a vhost-vdpa network,Establish a vhost-vdpa netdev\n"
+ " use 'vhostdev=/path/to/dev' to open a vhost vdpa device\n"
+ " use 'vhostfd=h' to connect to an already opened vhost vdpa device\n"
#endif
#ifdef CONFIG_VMNET
"-netdev vmnet-host,id=str[,isolated=on|off][,net-uuid=uuid]\n"
-netdev type=vhost-user,id=net0,chardev=chr0 \
-device virtio-net-pci,netdev=net0
-``-netdev vhost-vdpa,vhostdev=/path/to/dev``
+``-netdev vhost-vdpa[,vhostdev=/path/to/dev][,vhostfd=h]``
Establish a vhost-vdpa netdev.
vDPA device is a device that uses a datapath which complies with
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
"-chardev serial,id=id,path=path[,mux=on|off][,logfile=PATH][,logappend=on|off]\n"
- "-chardev tty,id=id,path=path[,mux=on|off][,logfile=PATH][,logappend=on|off]\n"
#endif
#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__)
"-chardev parallel,id=id,path=path[,mux=on|off][,logfile=PATH][,logappend=on|off]\n"
- "-chardev parport,id=id,path=path[,mux=on|off][,logfile=PATH][,logappend=on|off]\n"
#endif
#if defined(CONFIG_SPICE)
"-chardev spicevmc,id=id,name=name[,debug=debug][,logfile=PATH][,logappend=on|off]\n"
``-chardev backend,id=id[,mux=on|off][,options]``
Backend is one of: ``null``, ``socket``, ``udp``, ``msmouse``,
``vc``, ``ringbuf``, ``file``, ``pipe``, ``console``, ``serial``,
- ``pty``, ``stdio``, ``braille``, ``tty``, ``parallel``, ``parport``,
+ ``pty``, ``stdio``, ``braille``, ``parallel``,
``spicevmc``, ``spiceport``. The specific backend will determine the
applicable options.
Connect to a local BrlAPI server. ``braille`` does not take any
options.
-``-chardev tty,id=id,path=path``
- ``tty`` is only available on Linux, Sun, FreeBSD, NetBSD, OpenBSD
- and DragonFlyBSD hosts. It is an alias for ``serial``.
-
- ``path`` specifies the path to the tty. ``path`` is required.
-
``-chardev parallel,id=id,path=path``
\
-``-chardev parport,id=id,path=path``
``parallel`` is only available on Linux, FreeBSD and DragonFlyBSD
hosts.
DEF("qtest", HAS_ARG, QEMU_OPTION_qtest, "", QEMU_ARCH_ALL)
DEF("qtest-log", HAS_ARG, QEMU_OPTION_qtest_log, "", QEMU_ARCH_ALL)
+#ifdef __linux__
+DEF("async-teardown", 0, QEMU_OPTION_asyncteardown,
+ "-async-teardown enable asynchronous teardown\n",
+ QEMU_ARCH_ALL)
+#endif
+SRST
+``-async-teardown``
+ Enable asynchronous teardown. A new process called "cleanup/<QEMU_PID>"
+ will be created at startup sharing the address space with the main qemu
+ process, using clone. It will wait for the main qemu process to
+ terminate completely, and then exit.
+ This allows qemu to terminate very quickly even if the guest was
+ huge, leaving the teardown of the address space to the cleanup
+ process. Since the cleanup process shares the same cgroups as the
+ main qemu process, accounting is performed correctly. This only
+ works if the cleanup process is not forcefully killed with SIGKILL
+ before the main qemu process has terminated completely.
+ERST
+
DEF("msg", HAS_ARG, QEMU_OPTION_msg,
"-msg [timestamp[=on|off]][,guest-name=[on|off]]\n"
" control error message format\n"
Enable synchronization profiling.
ERST
+#if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
+DEF("perfmap", 0, QEMU_OPTION_perfmap,
+ "-perfmap generate a /tmp/perf-${pid}.map file for perf\n",
+ QEMU_ARCH_ALL)
+SRST
+``-perfmap``
+ Generate a map file for Linux perf tools that will allow basic profiling
+ information to be broken down into basic blocks.
+ERST
+
+DEF("jitdump", 0, QEMU_OPTION_jitdump,
+ "-jitdump generate a jit-${pid}.dump file for perf\n",
+ QEMU_ARCH_ALL)
+SRST
+``-jitdump``
+ Generate a dump file for Linux perf tools that maps basic blocks to symbol
+ names, line numbers and JITted code.
+ERST
+#endif
+
DEFHEADING()
DEFHEADING(Generic object creation:)
read the colo-compare git log.
``-object cryptodev-backend-builtin,id=id[,queues=queues]``
- Creates a cryptodev backend which executes crypto opreation from
- the QEMU cipher APIS. The id parameter is a unique ID that will
+ Creates a cryptodev backend which executes crypto operations from
+ the QEMU cipher APIs. The id parameter is a unique ID that will
be used to reference this cryptodev backend from the
``virtio-crypto`` device. The queues parameter is optional,
which specify the queue number of cryptodev backend, the default
file=/etc/qemu/vnc.allow
Finally the ``/etc/qemu/vnc.allow`` file would contain the list
- of x509 distingished names that are permitted access
+ of x509 distinguished names that are permitted access
::
projects / mirror_qemu.git / blobdiff