Enables or disables ACPI Heterogeneous Memory Attribute Table
(HMAT) support. The default is off.
- ``memory-backend='id'``
+ ``memory-backend='id'``
An alternative to legacy ``-mem-path`` and ``mem-prealloc`` options.
Allows to use a memory backend as main RAM.
For example:
::
- -object memory-backend-file,id=pc.ram,size=512M,mem-path=/hugetlbfs,prealloc=on,share=on
- -machine memory-backend=pc.ram
- -m 512M
+
+ -object memory-backend-file,id=pc.ram,size=512M,mem-path=/hugetlbfs,prealloc=on,share=on
+ -machine memory-backend=pc.ram
+ -m 512M
Migration compatibility note:
- a) as backend id one shall use value of 'default-ram-id', advertised by
- machine type (available via ``query-machines`` QMP command), if migration
- to/from old QEMU (<5.0) is expected.
- b) for machine types 4.0 and older, user shall
- use ``x-use-canonical-path-for-ramblock-id=off`` backend option
- if migration to/from old QEMU (<5.0) is expected.
+
+ * as backend id one shall use value of 'default-ram-id', advertised by
+ machine type (available via ``query-machines`` QMP command), if migration
+ to/from old QEMU (<5.0) is expected.
+ * for machine types 4.0 and older, user shall
+ use ``x-use-canonical-path-for-ramblock-id=off`` backend option
+ if migration to/from old QEMU (<5.0) is expected.
+
For example:
::
- -object memory-backend-ram,id=pc.ram,size=512M,x-use-canonical-path-for-ramblock-id=off
- -machine memory-backend=pc.ram
- -m 512M
+
+ -object memory-backend-ram,id=pc.ram,size=512M,x-use-canonical-path-for-ramblock-id=off
+ -machine memory-backend=pc.ram
+ -m 512M
ERST
-HXCOMM Deprecated by -machine
-DEF("M", HAS_ARG, QEMU_OPTION_M, "", QEMU_ARCH_ALL)
+DEF("M", HAS_ARG, QEMU_OPTION_M,
+ " sgx-epc.0.memdev=memid\n",
+ QEMU_ARCH_ALL)
+
+SRST
+``sgx-epc.0.memdev=@var{memid}``
+ Define an SGX EPC section.
+ERST
DEF("cpu", HAS_ARG, QEMU_OPTION_cpu,
"-cpu cpu select CPU ('-cpu help' for list)\n", QEMU_ARCH_ALL)
ERST
DEF("smp", HAS_ARG, QEMU_OPTION_smp,
- "-smp [[cpus=]n][,maxcpus=cpus][,sockets=sockets][,dies=dies][,cores=cores][,threads=threads]\n"
+ "-smp [[cpus=]n][,maxcpus=maxcpus][,sockets=sockets][,dies=dies][,cores=cores][,threads=threads]\n"
" set the number of CPUs to 'n' [default=1]\n"
" maxcpus= maximum number of total CPUs, including\n"
" offline CPUs for hotplug, etc\n"
Simulate a SMP system with '\ ``n``\ ' CPUs initially present on
the machine type board. On boards supporting CPU hotplug, the optional
'\ ``maxcpus``\ ' parameter can be set to enable further CPUs to be
- added at runtime. If omitted the maximum number of CPUs will be
- set to match the initial CPU count. Both parameters are subject to
- an upper limit that is determined by the specific machine type chosen.
+ added at runtime. When both parameters are omitted, the maximum number
+ of CPUs will be calculated from the provided topology members and the
+ initial CPU count will match the maximum number. When only one of them
+ is given then the omitted one will be set to its counterpart's value.
+ Both parameters may be specified, but the maximum number of CPUs must
+ be equal to or greater than the initial CPU count. Both parameters are
+ subject to an upper limit that is determined by the specific machine
+ type chosen.
To control reporting of CPU topology information, the number of sockets,
dies per socket, cores per die, and threads per core can be specified.
of computing the CPU maximum count.
Either the initial CPU count, or at least one of the topology parameters
- must be specified. Values for any omitted parameters will be computed
- from those which are given. Historically preference was given to the
- coarsest topology parameters when computing missing values (ie sockets
- preferred over cores, which were preferred over threads), however, this
- behaviour is considered liable to change.
+ must be specified. The specified parameters must be greater than zero,
+ explicit configuration like "cpus=0" is not allowed. Values for any
+ omitted parameters will be computed from those which are given.
+ Historically preference was given to the coarsest topology parameters
+ when computing missing values (ie sockets preferred over cores, which
+ were preferred over threads), however, this behaviour is considered
+ liable to change. Prior to 6.2 the preference was sockets over cores
+ over threads. Since 6.2 the preference is cores over sockets over threads.
ERST
DEF("numa", HAS_ARG, QEMU_OPTION_numa,
-m 2G \
-object memory-backend-ram,size=1G,id=m0 \
-object memory-backend-ram,size=1G,id=m1 \
- -smp 2 \
+ -smp 2,sockets=2,maxcpus=2 \
-numa node,nodeid=0,memdev=m0 \
-numa node,nodeid=1,memdev=m1,initiator=0 \
-numa cpu,node-id=0,socket-id=0 \
#endif
#if defined(CONFIG_SDL)
"-display sdl[,alt_grab=on|off][,ctrl_grab=on|off][,gl=on|core|es|off]\n"
- " [,show-cursor=on|off][,window-close=on|off]\n"
+ " [,grab-mod=<mod>][,show-cursor=on|off][,window-close=on|off]\n"
#endif
#if defined(CONFIG_GTK)
"-display gtk[,full-screen=on|off][,gl=on|off][,grab-on-hover=on|off]\n"
window; see the SDL documentation for other possibilities).
Valid parameters are:
- ``alt_grab=on|off`` : Use Control+Alt+Shift-g to toggle mouse grabbing
+ ``grab-mod=<mods>`` : Used to select the modifier keys for toggling
+ the mouse grabbing in conjunction with the "g" key. `<mods>` can be
+ either `lshift-lctrl-lalt` or `rctrl`.
+
+ ``alt_grab=on|off`` : Use Control+Alt+Shift-g to toggle mouse grabbing.
+ This parameter is deprecated - use ``grab-mod`` instead.
- ``ctrl_grab=on|off`` : Use Right-Control-g to toggle mouse grabbing
+ ``ctrl_grab=on|off`` : Use Right-Control-g to toggle mouse grabbing.
+ This parameter is deprecated - use ``grab-mod`` instead.
``gl=on|off|core|es`` : Use OpenGL for displaying
``-alt-grab``
Use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt). Note that
this also affects the special keys (for fullscreen, monitor-mode
- switching, etc).
+ switching, etc). This option is deprecated - please use
+ ``-display sdl,grab-mod=lshift-lctrl-lalt`` instead.
ERST
DEF("ctrl-grab", 0, QEMU_OPTION_ctrl_grab,
``-ctrl-grab``
Use Right-Ctrl to grab mouse (instead of Ctrl-Alt). Note that this
also affects the special keys (for fullscreen, monitor-mode
- switching, etc).
+ switching, etc). This option is deprecated - please use
+ ``-display sdl,grab-mod=rctrl`` instead.
ERST
DEF("no-quit", 0, QEMU_OPTION_no_quit,
DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
"-chardev help\n"
"-chardev null,id=id[,mux=on|off][,logfile=PATH][,logappend=on|off]\n"
- "-chardev socket,id=id[,host=host],port=port[,to=to][,ipv4=on|off][,ipv6=on|off][,nodelay=on|off][,reconnect=seconds]\n"
+ "-chardev socket,id=id[,host=host],port=port[,to=to][,ipv4=on|off][,ipv6=on|off][,nodelay=on|off]\n"
" [,server=on|off][,wait=on|off][,telnet=on|off][,websocket=on|off][,reconnect=seconds][,mux=on|off]\n"
" [,logfile=PATH][,logappend=on|off][,tls-creds=ID][,tls-authz=ID] (tcp)\n"
"-chardev socket,id=id,path=path[,server=on|off][,wait=on|off][,telnet=on|off][,websocket=on|off][,reconnect=seconds]\n"
ERST
DEF("plugin", HAS_ARG, QEMU_OPTION_plugin,
- "-plugin [file=]<file>[,arg=<string>]\n"
+ "-plugin [file=]<file>[,<argname>=<argvalue>]\n"
" load a plugin\n",
QEMU_ARCH_ALL)
SRST
-``-plugin file=file[,arg=string]``
+``-plugin file=file[,argname=argvalue]``
Load a plugin.
``file=file``
Load the given plugin from a shared library file.
- ``arg=string``
- Argument string passed to the plugin. (Can be given multiple
- times.)
+ ``argname=argvalue``
+ Argument passed to the plugin. (Can be given multiple times.)
ERST
HXCOMM Internal use
projects / mirror_qemu.git / blobdiff