15824d651Sblueswir1HXCOMM Use DEFHEADING() to define headings in both help text and texi 25824d651Sblueswir1HXCOMM Text between STEXI and ETEXI are copied to texi version and 35824d651Sblueswir1HXCOMM discarded from C version 45824d651Sblueswir1HXCOMM DEF(option, HAS_ARG/0, opt_enum, opt_help) is used to construct 55824d651Sblueswir1HXCOMM option structures, enums and help message. 65824d651Sblueswir1HXCOMM HXCOMM can be used for comments, discarded from both texi and C 75824d651Sblueswir1 85824d651Sblueswir1DEFHEADING(Standard options:) 95824d651Sblueswir1STEXI 105824d651Sblueswir1@table @option 115824d651Sblueswir1ETEXI 125824d651Sblueswir1 135824d651Sblueswir1DEF("help", 0, QEMU_OPTION_h, 145824d651Sblueswir1 "-h or -help display this help and exit\n") 155824d651Sblueswir1STEXI 165824d651Sblueswir1@item -h 175824d651Sblueswir1Display help and exit 185824d651Sblueswir1ETEXI 195824d651Sblueswir1 209bd7e6d9SpbrookDEF("version", 0, QEMU_OPTION_version, 219bd7e6d9Spbrook "-version display version information and exit\n") 229bd7e6d9SpbrookSTEXI 239bd7e6d9Spbrook@item -version 249bd7e6d9SpbrookDisplay version information and exit 259bd7e6d9SpbrookETEXI 269bd7e6d9Spbrook 275824d651Sblueswir1DEF("M", HAS_ARG, QEMU_OPTION_M, 285824d651Sblueswir1 "-M machine select emulated machine (-M ? for list)\n") 295824d651Sblueswir1STEXI 305824d651Sblueswir1@item -M @var{machine} 315824d651Sblueswir1Select the emulated @var{machine} (@code{-M ?} for list) 325824d651Sblueswir1ETEXI 335824d651Sblueswir1 345824d651Sblueswir1DEF("cpu", HAS_ARG, QEMU_OPTION_cpu, 355824d651Sblueswir1 "-cpu cpu select CPU (-cpu ? for list)\n") 365824d651Sblueswir1STEXI 375824d651Sblueswir1@item -cpu @var{model} 385824d651Sblueswir1Select CPU model (-cpu ? for list and additional feature selection) 395824d651Sblueswir1ETEXI 405824d651Sblueswir1 415824d651Sblueswir1DEF("smp", HAS_ARG, QEMU_OPTION_smp, 4258a04db1SAndre Przywara "-smp n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]\n" 436be68d7eSJes Sorensen " set the number of CPUs to 'n' [default=1]\n" 446be68d7eSJes Sorensen " maxcpus= maximum number of total cpus, including\n" 4558a04db1SAndre Przywara " offline CPUs for hotplug etc.\n" 4658a04db1SAndre Przywara " cores= number of CPU cores on one socket\n" 4758a04db1SAndre Przywara " threads= number of threads on one CPU core\n" 4858a04db1SAndre Przywara " sockets= number of discrete sockets in the system\n") 495824d651Sblueswir1STEXI 5058a04db1SAndre Przywara@item -smp @var{n}[,cores=@var{cores}][,threads=@var{threads}][,sockets=@var{sockets}][,maxcpus=@var{maxcpus}] 515824d651Sblueswir1Simulate an SMP system with @var{n} CPUs. On the PC target, up to 255 525824d651Sblueswir1CPUs are supported. On Sparc32 target, Linux limits the number of usable CPUs 535824d651Sblueswir1to 4. 5458a04db1SAndre PrzywaraFor the PC target, the number of @var{cores} per socket, the number 5558a04db1SAndre Przywaraof @var{threads} per cores and the total number of @var{sockets} can be 5658a04db1SAndre Przywaraspecified. Missing values will be computed. If any on the three values is 5758a04db1SAndre Przywaragiven, the total number of CPUs @var{n} can be omitted. @var{maxcpus} 5858a04db1SAndre Przywaraspecifies the maximum number of hotpluggable CPUs. 595824d651Sblueswir1ETEXI 605824d651Sblueswir1 61268a362cSaliguoriDEF("numa", HAS_ARG, QEMU_OPTION_numa, 62268a362cSaliguori "-numa node[,mem=size][,cpus=cpu[-cpu]][,nodeid=node]\n") 63268a362cSaliguoriSTEXI 64268a362cSaliguori@item -numa @var{opts} 65268a362cSaliguoriSimulate a multi node NUMA system. If mem and cpus are omitted, resources 66268a362cSaliguoriare split equally. 67268a362cSaliguoriETEXI 68268a362cSaliguori 695824d651Sblueswir1DEF("fda", HAS_ARG, QEMU_OPTION_fda, 705824d651Sblueswir1 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n") 715824d651Sblueswir1DEF("fdb", HAS_ARG, QEMU_OPTION_fdb, "") 725824d651Sblueswir1STEXI 735824d651Sblueswir1@item -fda @var{file} 745824d651Sblueswir1@item -fdb @var{file} 755824d651Sblueswir1Use @var{file} as floppy disk 0/1 image (@pxref{disk_images}). You can 765824d651Sblueswir1use the host floppy by using @file{/dev/fd0} as filename (@pxref{host_drives}). 775824d651Sblueswir1ETEXI 785824d651Sblueswir1 795824d651Sblueswir1DEF("hda", HAS_ARG, QEMU_OPTION_hda, 805824d651Sblueswir1 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n") 815824d651Sblueswir1DEF("hdb", HAS_ARG, QEMU_OPTION_hdb, "") 825824d651Sblueswir1DEF("hdc", HAS_ARG, QEMU_OPTION_hdc, 835824d651Sblueswir1 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n") 845824d651Sblueswir1DEF("hdd", HAS_ARG, QEMU_OPTION_hdd, "") 855824d651Sblueswir1STEXI 865824d651Sblueswir1@item -hda @var{file} 875824d651Sblueswir1@item -hdb @var{file} 885824d651Sblueswir1@item -hdc @var{file} 895824d651Sblueswir1@item -hdd @var{file} 905824d651Sblueswir1Use @var{file} as hard disk 0, 1, 2 or 3 image (@pxref{disk_images}). 915824d651Sblueswir1ETEXI 925824d651Sblueswir1 935824d651Sblueswir1DEF("cdrom", HAS_ARG, QEMU_OPTION_cdrom, 945824d651Sblueswir1 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n") 955824d651Sblueswir1STEXI 965824d651Sblueswir1@item -cdrom @var{file} 975824d651Sblueswir1Use @var{file} as CD-ROM image (you cannot use @option{-hdc} and 985824d651Sblueswir1@option{-cdrom} at the same time). You can use the host CD-ROM by 995824d651Sblueswir1using @file{/dev/cdrom} as filename (@pxref{host_drives}). 1005824d651Sblueswir1ETEXI 1015824d651Sblueswir1 1025824d651Sblueswir1DEF("drive", HAS_ARG, QEMU_OPTION_drive, 1035824d651Sblueswir1 "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n" 1045824d651Sblueswir1 " [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n" 1055824d651Sblueswir1 " [,cache=writethrough|writeback|none][,format=f][,serial=s]\n" 1065c6c3a6cSChristoph Hellwig " [,addr=A][,id=name][,aio=threads|native]\n" 1075824d651Sblueswir1 " use 'file' as a drive image\n") 108d058fe03SGerd HoffmannDEF("set", HAS_ARG, QEMU_OPTION_set, 109d058fe03SGerd Hoffmann "-set group.id.arg=value\n" 110d058fe03SGerd Hoffmann " set <arg> parameter for item <id> of type <group>\n" 111d058fe03SGerd Hoffmann " i.e. -set drive.$id.file=/path/to/image\n") 112d0fef6fbSGerd HoffmannDEF("global", HAS_ARG, QEMU_OPTION_global, 113d0fef6fbSGerd Hoffmann "-global driver.property=value\n" 114d0fef6fbSGerd Hoffmann " set a global default for a driver property\n") 1155824d651Sblueswir1STEXI 1165824d651Sblueswir1@item -drive @var{option}[,@var{option}[,@var{option}[,...]]] 1175824d651Sblueswir1 1185824d651Sblueswir1Define a new drive. Valid options are: 1195824d651Sblueswir1 120b3f046c2SKevin Wolf@table @option 1215824d651Sblueswir1@item file=@var{file} 1225824d651Sblueswir1This option defines which disk image (@pxref{disk_images}) to use with 1235824d651Sblueswir1this drive. If the filename contains comma, you must double it 1245824d651Sblueswir1(for instance, "file=my,,file" to use file "my,file"). 1255824d651Sblueswir1@item if=@var{interface} 1265824d651Sblueswir1This option defines on which type on interface the drive is connected. 1275824d651Sblueswir1Available types are: ide, scsi, sd, mtd, floppy, pflash, virtio. 1285824d651Sblueswir1@item bus=@var{bus},unit=@var{unit} 1295824d651Sblueswir1These options define where is connected the drive by defining the bus number and 1305824d651Sblueswir1the unit id. 1315824d651Sblueswir1@item index=@var{index} 1325824d651Sblueswir1This option defines where is connected the drive by using an index in the list 1335824d651Sblueswir1of available connectors of a given interface type. 1345824d651Sblueswir1@item media=@var{media} 1355824d651Sblueswir1This option defines the type of the media: disk or cdrom. 1365824d651Sblueswir1@item cyls=@var{c},heads=@var{h},secs=@var{s}[,trans=@var{t}] 1375824d651Sblueswir1These options have the same definition as they have in @option{-hdachs}. 1385824d651Sblueswir1@item snapshot=@var{snapshot} 1395824d651Sblueswir1@var{snapshot} is "on" or "off" and allows to enable snapshot for given drive (see @option{-snapshot}). 1405824d651Sblueswir1@item cache=@var{cache} 1415824d651Sblueswir1@var{cache} is "none", "writeback", or "writethrough" and controls how the host cache is used to access block data. 1425c6c3a6cSChristoph Hellwig@item aio=@var{aio} 1435c6c3a6cSChristoph Hellwig@var{aio} is "threads", or "native" and selects between pthread based disk I/O and native Linux AIO. 1445824d651Sblueswir1@item format=@var{format} 1455824d651Sblueswir1Specify which disk @var{format} will be used rather than detecting 1465824d651Sblueswir1the format. Can be used to specifiy format=raw to avoid interpreting 1475824d651Sblueswir1an untrusted format header. 1485824d651Sblueswir1@item serial=@var{serial} 1495824d651Sblueswir1This option specifies the serial number to assign to the device. 150c2cc47a4SMarkus Armbruster@item addr=@var{addr} 151c2cc47a4SMarkus ArmbrusterSpecify the controller's PCI address (if=virtio only). 1525824d651Sblueswir1@end table 1535824d651Sblueswir1 1545824d651Sblueswir1By default, writethrough caching is used for all block device. This means that 1555824d651Sblueswir1the host page cache will be used to read and write data but write notification 1565824d651Sblueswir1will be sent to the guest only when the data has been reported as written by 1575824d651Sblueswir1the storage subsystem. 1585824d651Sblueswir1 1595824d651Sblueswir1Writeback caching will report data writes as completed as soon as the data is 1605824d651Sblueswir1present in the host page cache. This is safe as long as you trust your host. 1615824d651Sblueswir1If your host crashes or loses power, then the guest may experience data 1625824d651Sblueswir1corruption. When using the @option{-snapshot} option, writeback caching is 1635824d651Sblueswir1used by default. 1645824d651Sblueswir1 165c304d317SAurelien JarnoThe host page cache can be avoided entirely with @option{cache=none}. This will 1665824d651Sblueswir1attempt to do disk IO directly to the guests memory. QEMU may still perform 1675824d651Sblueswir1an internal copy of the data. 1685824d651Sblueswir1 1695824d651Sblueswir1Some block drivers perform badly with @option{cache=writethrough}, most notably, 1705824d651Sblueswir1qcow2. If performance is more important than correctness, 1710aa217e4SKevin Wolf@option{cache=writeback} should be used with qcow2. 1725824d651Sblueswir1 1735824d651Sblueswir1Instead of @option{-cdrom} you can use: 1745824d651Sblueswir1@example 1755824d651Sblueswir1qemu -drive file=file,index=2,media=cdrom 1765824d651Sblueswir1@end example 1775824d651Sblueswir1 1785824d651Sblueswir1Instead of @option{-hda}, @option{-hdb}, @option{-hdc}, @option{-hdd}, you can 1795824d651Sblueswir1use: 1805824d651Sblueswir1@example 1815824d651Sblueswir1qemu -drive file=file,index=0,media=disk 1825824d651Sblueswir1qemu -drive file=file,index=1,media=disk 1835824d651Sblueswir1qemu -drive file=file,index=2,media=disk 1845824d651Sblueswir1qemu -drive file=file,index=3,media=disk 1855824d651Sblueswir1@end example 1865824d651Sblueswir1 1875824d651Sblueswir1You can connect a CDROM to the slave of ide0: 1885824d651Sblueswir1@example 1895824d651Sblueswir1qemu -drive file=file,if=ide,index=1,media=cdrom 1905824d651Sblueswir1@end example 1915824d651Sblueswir1 1925824d651Sblueswir1If you don't specify the "file=" argument, you define an empty drive: 1935824d651Sblueswir1@example 1945824d651Sblueswir1qemu -drive if=ide,index=1,media=cdrom 1955824d651Sblueswir1@end example 1965824d651Sblueswir1 1975824d651Sblueswir1You can connect a SCSI disk with unit ID 6 on the bus #0: 1985824d651Sblueswir1@example 1995824d651Sblueswir1qemu -drive file=file,if=scsi,bus=0,unit=6 2005824d651Sblueswir1@end example 2015824d651Sblueswir1 2025824d651Sblueswir1Instead of @option{-fda}, @option{-fdb}, you can use: 2035824d651Sblueswir1@example 2045824d651Sblueswir1qemu -drive file=file,index=0,if=floppy 2055824d651Sblueswir1qemu -drive file=file,index=1,if=floppy 2065824d651Sblueswir1@end example 2075824d651Sblueswir1 2085824d651Sblueswir1By default, @var{interface} is "ide" and @var{index} is automatically 2095824d651Sblueswir1incremented: 2105824d651Sblueswir1@example 2115824d651Sblueswir1qemu -drive file=a -drive file=b" 2125824d651Sblueswir1@end example 2135824d651Sblueswir1is interpreted like: 2145824d651Sblueswir1@example 2155824d651Sblueswir1qemu -hda a -hdb b 2165824d651Sblueswir1@end example 2175824d651Sblueswir1ETEXI 2185824d651Sblueswir1 2195824d651Sblueswir1DEF("mtdblock", HAS_ARG, QEMU_OPTION_mtdblock, 2205824d651Sblueswir1 "-mtdblock file use 'file' as on-board Flash memory image\n") 2215824d651Sblueswir1STEXI 2225824d651Sblueswir1 2234e257e5eSKevin Wolf@item -mtdblock @var{file} 2244e257e5eSKevin WolfUse @var{file} as on-board Flash memory image. 2255824d651Sblueswir1ETEXI 2265824d651Sblueswir1 2275824d651Sblueswir1DEF("sd", HAS_ARG, QEMU_OPTION_sd, 2285824d651Sblueswir1 "-sd file use 'file' as SecureDigital card image\n") 2295824d651Sblueswir1STEXI 2304e257e5eSKevin Wolf@item -sd @var{file} 2314e257e5eSKevin WolfUse @var{file} as SecureDigital card image. 2325824d651Sblueswir1ETEXI 2335824d651Sblueswir1 2345824d651Sblueswir1DEF("pflash", HAS_ARG, QEMU_OPTION_pflash, 2355824d651Sblueswir1 "-pflash file use 'file' as a parallel flash image\n") 2365824d651Sblueswir1STEXI 2374e257e5eSKevin Wolf@item -pflash @var{file} 2384e257e5eSKevin WolfUse @var{file} as a parallel flash image. 2395824d651Sblueswir1ETEXI 2405824d651Sblueswir1 2415824d651Sblueswir1DEF("boot", HAS_ARG, QEMU_OPTION_boot, 2422221dde5SJan Kiszka "-boot [order=drives][,once=drives][,menu=on|off]\n" 2432221dde5SJan Kiszka " 'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)\n") 2445824d651Sblueswir1STEXI 2452221dde5SJan Kiszka@item -boot [order=@var{drives}][,once=@var{drives}][,menu=on|off] 2462221dde5SJan Kiszka 2472221dde5SJan KiszkaSpecify boot order @var{drives} as a string of drive letters. Valid 2482221dde5SJan Kiszkadrive letters depend on the target achitecture. The x86 PC uses: a, b 2492221dde5SJan Kiszka(floppy 1 and 2), c (first hard disk), d (first CD-ROM), n-p (Etherboot 2502221dde5SJan Kiszkafrom network adapter 1-4), hard disk boot is the default. To apply a 2512221dde5SJan Kiszkaparticular boot order only on the first startup, specify it via 2522221dde5SJan Kiszka@option{once}. 2532221dde5SJan Kiszka 2542221dde5SJan KiszkaInteractive boot menus/prompts can be enabled via @option{menu=on} as far 2552221dde5SJan Kiszkaas firmware/BIOS supports them. The default is non-interactive boot. 2562221dde5SJan Kiszka 2572221dde5SJan Kiszka@example 2582221dde5SJan Kiszka# try to boot from network first, then from hard disk 2592221dde5SJan Kiszkaqemu -boot order=nc 2602221dde5SJan Kiszka# boot from CD-ROM first, switch back to default order after reboot 2612221dde5SJan Kiszkaqemu -boot once=d 2622221dde5SJan Kiszka@end example 2632221dde5SJan Kiszka 2642221dde5SJan KiszkaNote: The legacy format '-boot @var{drives}' is still supported but its 2652221dde5SJan Kiszkause is discouraged as it may be removed from future versions. 2665824d651Sblueswir1ETEXI 2675824d651Sblueswir1 2685824d651Sblueswir1DEF("snapshot", 0, QEMU_OPTION_snapshot, 2695824d651Sblueswir1 "-snapshot write to temporary files instead of disk image files\n") 2705824d651Sblueswir1STEXI 2715824d651Sblueswir1@item -snapshot 2725824d651Sblueswir1Write to temporary files instead of disk image files. In this case, 2735824d651Sblueswir1the raw disk image you use is not written back. You can however force 2745824d651Sblueswir1the write back by pressing @key{C-a s} (@pxref{disk_images}). 2755824d651Sblueswir1ETEXI 2765824d651Sblueswir1 2775824d651Sblueswir1DEF("m", HAS_ARG, QEMU_OPTION_m, 2785824d651Sblueswir1 "-m megs set virtual RAM size to megs MB [default=%d]\n") 2795824d651Sblueswir1STEXI 2805824d651Sblueswir1@item -m @var{megs} 2815824d651Sblueswir1Set virtual RAM size to @var{megs} megabytes. Default is 128 MiB. Optionally, 2825824d651Sblueswir1a suffix of ``M'' or ``G'' can be used to signify a value in megabytes or 2835824d651Sblueswir1gigabytes respectively. 2845824d651Sblueswir1ETEXI 2855824d651Sblueswir1 2865824d651Sblueswir1DEF("k", HAS_ARG, QEMU_OPTION_k, 2875c2f8d2dSblueswir1 "-k language use keyboard layout (for example 'fr' for French)\n") 2885824d651Sblueswir1STEXI 2895824d651Sblueswir1@item -k @var{language} 2905824d651Sblueswir1 2915824d651Sblueswir1Use keyboard layout @var{language} (for example @code{fr} for 2925824d651Sblueswir1French). This option is only needed where it is not easy to get raw PC 2935824d651Sblueswir1keycodes (e.g. on Macs, with some X11 servers or with a VNC 2945824d651Sblueswir1display). You don't normally need to use it on PC/Linux or PC/Windows 2955824d651Sblueswir1hosts. 2965824d651Sblueswir1 2975824d651Sblueswir1The available layouts are: 2985824d651Sblueswir1@example 2995824d651Sblueswir1ar de-ch es fo fr-ca hu ja mk no pt-br sv 3005824d651Sblueswir1da en-gb et fr fr-ch is lt nl pl ru th 3015824d651Sblueswir1de en-us fi fr-be hr it lv nl-be pt sl tr 3025824d651Sblueswir1@end example 3035824d651Sblueswir1 3045824d651Sblueswir1The default is @code{en-us}. 3055824d651Sblueswir1ETEXI 3065824d651Sblueswir1 3075824d651Sblueswir1 3085824d651Sblueswir1#ifdef HAS_AUDIO 3095824d651Sblueswir1DEF("audio-help", 0, QEMU_OPTION_audio_help, 3105824d651Sblueswir1 "-audio-help print list of audio drivers and their options\n") 3115824d651Sblueswir1#endif 3125824d651Sblueswir1STEXI 3135824d651Sblueswir1@item -audio-help 3145824d651Sblueswir1 3155824d651Sblueswir1Will show the audio subsystem help: list of drivers, tunable 3165824d651Sblueswir1parameters. 3175824d651Sblueswir1ETEXI 3185824d651Sblueswir1 3195824d651Sblueswir1#ifdef HAS_AUDIO 3205824d651Sblueswir1DEF("soundhw", HAS_ARG, QEMU_OPTION_soundhw, 3215824d651Sblueswir1 "-soundhw c1,... enable audio support\n" 3225824d651Sblueswir1 " and only specified sound cards (comma separated list)\n" 3235824d651Sblueswir1 " use -soundhw ? to get the list of supported cards\n" 3245824d651Sblueswir1 " use -soundhw all to enable all of them\n") 3255824d651Sblueswir1#endif 3265824d651Sblueswir1STEXI 3275824d651Sblueswir1@item -soundhw @var{card1}[,@var{card2},...] or -soundhw all 3285824d651Sblueswir1 3295824d651Sblueswir1Enable audio and selected sound hardware. Use ? to print all 3305824d651Sblueswir1available sound hardware. 3315824d651Sblueswir1 3325824d651Sblueswir1@example 3335824d651Sblueswir1qemu -soundhw sb16,adlib disk.img 3345824d651Sblueswir1qemu -soundhw es1370 disk.img 3355824d651Sblueswir1qemu -soundhw ac97 disk.img 3365824d651Sblueswir1qemu -soundhw all disk.img 3375824d651Sblueswir1qemu -soundhw ? 3385824d651Sblueswir1@end example 3395824d651Sblueswir1 3405824d651Sblueswir1Note that Linux's i810_audio OSS kernel (for AC97) module might 3415824d651Sblueswir1require manually specifying clocking. 3425824d651Sblueswir1 3435824d651Sblueswir1@example 3445824d651Sblueswir1modprobe i810_audio clocking=48000 3455824d651Sblueswir1@end example 3465824d651Sblueswir1ETEXI 3475824d651Sblueswir1 3485824d651Sblueswir1STEXI 3495824d651Sblueswir1@end table 3505824d651Sblueswir1ETEXI 3515824d651Sblueswir1 3525824d651Sblueswir1DEF("usb", 0, QEMU_OPTION_usb, 3535824d651Sblueswir1 "-usb enable the USB driver (will be the default soon)\n") 3545824d651Sblueswir1STEXI 3555824d651Sblueswir1USB options: 3565824d651Sblueswir1@table @option 3575824d651Sblueswir1 3585824d651Sblueswir1@item -usb 3595824d651Sblueswir1Enable the USB driver (will be the default soon) 3605824d651Sblueswir1ETEXI 3615824d651Sblueswir1 3625824d651Sblueswir1DEF("usbdevice", HAS_ARG, QEMU_OPTION_usbdevice, 3635824d651Sblueswir1 "-usbdevice name add the host or guest USB device 'name'\n") 3645824d651Sblueswir1STEXI 3655824d651Sblueswir1 3665824d651Sblueswir1@item -usbdevice @var{devname} 3675824d651Sblueswir1Add the USB device @var{devname}. @xref{usb_devices}. 3685824d651Sblueswir1 369b3f046c2SKevin Wolf@table @option 3705824d651Sblueswir1 3715824d651Sblueswir1@item mouse 3725824d651Sblueswir1Virtual Mouse. This will override the PS/2 mouse emulation when activated. 3735824d651Sblueswir1 3745824d651Sblueswir1@item tablet 3755824d651Sblueswir1Pointer device that uses absolute coordinates (like a touchscreen). This 3765824d651Sblueswir1means qemu is able to report the mouse position without having to grab the 3775824d651Sblueswir1mouse. Also overrides the PS/2 mouse emulation when activated. 3785824d651Sblueswir1 3794e257e5eSKevin Wolf@item disk:[format=@var{format}]:@var{file} 3805824d651Sblueswir1Mass storage device based on file. The optional @var{format} argument 3815824d651Sblueswir1will be used rather than detecting the format. Can be used to specifiy 3824e257e5eSKevin Wolf@code{format=raw} to avoid interpreting an untrusted format header. 3835824d651Sblueswir1 3844e257e5eSKevin Wolf@item host:@var{bus}.@var{addr} 3854e257e5eSKevin WolfPass through the host device identified by @var{bus}.@var{addr} (Linux only). 3865824d651Sblueswir1 3874e257e5eSKevin Wolf@item host:@var{vendor_id}:@var{product_id} 3884e257e5eSKevin WolfPass through the host device identified by @var{vendor_id}:@var{product_id} 3894e257e5eSKevin Wolf(Linux only). 3905824d651Sblueswir1 3915824d651Sblueswir1@item serial:[vendorid=@var{vendor_id}][,productid=@var{product_id}]:@var{dev} 3925824d651Sblueswir1Serial converter to host character device @var{dev}, see @code{-serial} for the 3935824d651Sblueswir1available devices. 3945824d651Sblueswir1 3955824d651Sblueswir1@item braille 3965824d651Sblueswir1Braille device. This will use BrlAPI to display the braille output on a real 3975824d651Sblueswir1or fake device. 3985824d651Sblueswir1 3994e257e5eSKevin Wolf@item net:@var{options} 4005824d651Sblueswir1Network adapter that supports CDC ethernet and RNDIS protocols. 4015824d651Sblueswir1 4025824d651Sblueswir1@end table 4035824d651Sblueswir1ETEXI 4045824d651Sblueswir1 405bd3c948dSGerd HoffmannDEF("device", HAS_ARG, QEMU_OPTION_device, 406bd3c948dSGerd Hoffmann "-device driver[,options] add device\n") 4075824d651Sblueswir1DEF("name", HAS_ARG, QEMU_OPTION_name, 4081889465aSAndi Kleen "-name string1[,process=string2] set the name of the guest\n" 4091889465aSAndi Kleen " string1 sets the window title and string2 the process name (on Linux)\n") 4105824d651Sblueswir1STEXI 4115824d651Sblueswir1@item -name @var{name} 4125824d651Sblueswir1Sets the @var{name} of the guest. 4135824d651Sblueswir1This name will be displayed in the SDL window caption. 4145824d651Sblueswir1The @var{name} will also be used for the VNC server. 4151889465aSAndi KleenAlso optionally set the top visible process name in Linux. 4165824d651Sblueswir1ETEXI 4175824d651Sblueswir1 4185824d651Sblueswir1DEF("uuid", HAS_ARG, QEMU_OPTION_uuid, 4195824d651Sblueswir1 "-uuid %%08x-%%04x-%%04x-%%04x-%%012x\n" 4205824d651Sblueswir1 " specify machine UUID\n") 4215824d651Sblueswir1STEXI 4225824d651Sblueswir1@item -uuid @var{uuid} 4235824d651Sblueswir1Set system UUID. 4245824d651Sblueswir1ETEXI 4255824d651Sblueswir1 4265824d651Sblueswir1STEXI 4275824d651Sblueswir1@end table 4285824d651Sblueswir1ETEXI 4295824d651Sblueswir1 4305824d651Sblueswir1DEFHEADING() 4315824d651Sblueswir1 4325824d651Sblueswir1DEFHEADING(Display options:) 4335824d651Sblueswir1 4345824d651Sblueswir1STEXI 4355824d651Sblueswir1@table @option 4365824d651Sblueswir1ETEXI 4375824d651Sblueswir1 4385824d651Sblueswir1DEF("nographic", 0, QEMU_OPTION_nographic, 4395824d651Sblueswir1 "-nographic disable graphical output and redirect serial I/Os to console\n") 4405824d651Sblueswir1STEXI 4415824d651Sblueswir1@item -nographic 4425824d651Sblueswir1 4435824d651Sblueswir1Normally, QEMU uses SDL to display the VGA output. With this option, 4445824d651Sblueswir1you can totally disable graphical output so that QEMU is a simple 4455824d651Sblueswir1command line application. The emulated serial port is redirected on 4465824d651Sblueswir1the console. Therefore, you can still use QEMU to debug a Linux kernel 4475824d651Sblueswir1with a serial console. 4485824d651Sblueswir1ETEXI 4495824d651Sblueswir1 4505824d651Sblueswir1#ifdef CONFIG_CURSES 4515824d651Sblueswir1DEF("curses", 0, QEMU_OPTION_curses, 4525824d651Sblueswir1 "-curses use a curses/ncurses interface instead of SDL\n") 4535824d651Sblueswir1#endif 4545824d651Sblueswir1STEXI 4555824d651Sblueswir1@item -curses 4565824d651Sblueswir1 4575824d651Sblueswir1Normally, QEMU uses SDL to display the VGA output. With this option, 4585824d651Sblueswir1QEMU can display the VGA output when in text mode using a 4595824d651Sblueswir1curses/ncurses interface. Nothing is displayed in graphical mode. 4605824d651Sblueswir1ETEXI 4615824d651Sblueswir1 4625824d651Sblueswir1#ifdef CONFIG_SDL 4635824d651Sblueswir1DEF("no-frame", 0, QEMU_OPTION_no_frame, 4645824d651Sblueswir1 "-no-frame open SDL window without a frame and window decorations\n") 4655824d651Sblueswir1#endif 4665824d651Sblueswir1STEXI 4675824d651Sblueswir1@item -no-frame 4685824d651Sblueswir1 4695824d651Sblueswir1Do not use decorations for SDL windows and start them using the whole 4705824d651Sblueswir1available screen space. This makes the using QEMU in a dedicated desktop 4715824d651Sblueswir1workspace more convenient. 4725824d651Sblueswir1ETEXI 4735824d651Sblueswir1 4745824d651Sblueswir1#ifdef CONFIG_SDL 4755824d651Sblueswir1DEF("alt-grab", 0, QEMU_OPTION_alt_grab, 4765824d651Sblueswir1 "-alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt)\n") 4775824d651Sblueswir1#endif 4785824d651Sblueswir1STEXI 4795824d651Sblueswir1@item -alt-grab 4805824d651Sblueswir1 4815824d651Sblueswir1Use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt). 4825824d651Sblueswir1ETEXI 4835824d651Sblueswir1 4845824d651Sblueswir1#ifdef CONFIG_SDL 4850ca9f8a4SDustin KirklandDEF("ctrl-grab", 0, QEMU_OPTION_ctrl_grab, 4860ca9f8a4SDustin Kirkland "-ctrl-grab use Right-Ctrl to grab mouse (instead of Ctrl-Alt)\n") 4870ca9f8a4SDustin Kirkland#endif 4880ca9f8a4SDustin KirklandSTEXI 4890ca9f8a4SDustin Kirkland@item -ctrl-grab 4900ca9f8a4SDustin Kirkland 4910ca9f8a4SDustin KirklandUse Right-Ctrl to grab mouse (instead of Ctrl-Alt). 4920ca9f8a4SDustin KirklandETEXI 4930ca9f8a4SDustin Kirkland 4940ca9f8a4SDustin Kirkland#ifdef CONFIG_SDL 4955824d651Sblueswir1DEF("no-quit", 0, QEMU_OPTION_no_quit, 4965824d651Sblueswir1 "-no-quit disable SDL window close capability\n") 4975824d651Sblueswir1#endif 4985824d651Sblueswir1STEXI 4995824d651Sblueswir1@item -no-quit 5005824d651Sblueswir1 5015824d651Sblueswir1Disable SDL window close capability. 5025824d651Sblueswir1ETEXI 5035824d651Sblueswir1 5045824d651Sblueswir1#ifdef CONFIG_SDL 5055824d651Sblueswir1DEF("sdl", 0, QEMU_OPTION_sdl, 5065824d651Sblueswir1 "-sdl enable SDL\n") 5075824d651Sblueswir1#endif 5085824d651Sblueswir1STEXI 5095824d651Sblueswir1@item -sdl 5105824d651Sblueswir1 5115824d651Sblueswir1Enable SDL. 5125824d651Sblueswir1ETEXI 5135824d651Sblueswir1 5145824d651Sblueswir1DEF("portrait", 0, QEMU_OPTION_portrait, 5155824d651Sblueswir1 "-portrait rotate graphical output 90 deg left (only PXA LCD)\n") 5165824d651Sblueswir1STEXI 5175824d651Sblueswir1@item -portrait 5185824d651Sblueswir1 5195824d651Sblueswir1Rotate graphical output 90 deg left (only PXA LCD). 5205824d651Sblueswir1ETEXI 5215824d651Sblueswir1 5225824d651Sblueswir1DEF("vga", HAS_ARG, QEMU_OPTION_vga, 52394909d9fSaliguori "-vga [std|cirrus|vmware|xenfb|none]\n" 5245824d651Sblueswir1 " select video card type\n") 5255824d651Sblueswir1STEXI 5265824d651Sblueswir1@item -vga @var{type} 5275824d651Sblueswir1Select type of VGA card to emulate. Valid values for @var{type} are 528b3f046c2SKevin Wolf@table @option 5295824d651Sblueswir1@item cirrus 5305824d651Sblueswir1Cirrus Logic GD5446 Video card. All Windows versions starting from 5315824d651Sblueswir1Windows 95 should recognize and use this graphic card. For optimal 5325824d651Sblueswir1performances, use 16 bit color depth in the guest and the host OS. 5335824d651Sblueswir1(This one is the default) 5345824d651Sblueswir1@item std 5355824d651Sblueswir1Standard VGA card with Bochs VBE extensions. If your guest OS 5365824d651Sblueswir1supports the VESA 2.0 VBE extensions (e.g. Windows XP) and if you want 5375824d651Sblueswir1to use high resolution modes (>= 1280x1024x16) then you should use 5385824d651Sblueswir1this option. 5395824d651Sblueswir1@item vmware 5405824d651Sblueswir1VMWare SVGA-II compatible adapter. Use it if you have sufficiently 5415824d651Sblueswir1recent XFree86/XOrg server or Windows guest with a driver for this 5425824d651Sblueswir1card. 5435824d651Sblueswir1@item none 5445824d651Sblueswir1Disable VGA card. 5455824d651Sblueswir1@end table 5465824d651Sblueswir1ETEXI 5475824d651Sblueswir1 5485824d651Sblueswir1DEF("full-screen", 0, QEMU_OPTION_full_screen, 5495824d651Sblueswir1 "-full-screen start in full screen\n") 5505824d651Sblueswir1STEXI 5515824d651Sblueswir1@item -full-screen 5525824d651Sblueswir1Start in full screen. 5535824d651Sblueswir1ETEXI 5545824d651Sblueswir1 5555824d651Sblueswir1#if defined(TARGET_PPC) || defined(TARGET_SPARC) 5565824d651Sblueswir1DEF("g", 1, QEMU_OPTION_g , 5575824d651Sblueswir1 "-g WxH[xDEPTH] Set the initial graphical resolution and depth\n") 5585824d651Sblueswir1#endif 5595824d651Sblueswir1STEXI 5605824d651Sblueswir1ETEXI 5615824d651Sblueswir1 5625824d651Sblueswir1DEF("vnc", HAS_ARG, QEMU_OPTION_vnc , 5635824d651Sblueswir1 "-vnc display start a VNC server on display\n") 5645824d651Sblueswir1STEXI 5655824d651Sblueswir1@item -vnc @var{display}[,@var{option}[,@var{option}[,...]]] 5665824d651Sblueswir1 5675824d651Sblueswir1Normally, QEMU uses SDL to display the VGA output. With this option, 5685824d651Sblueswir1you can have QEMU listen on VNC display @var{display} and redirect the VGA 5695824d651Sblueswir1display over the VNC session. It is very useful to enable the usb 5705824d651Sblueswir1tablet device when using this option (option @option{-usbdevice 5715824d651Sblueswir1tablet}). When using the VNC display, you must use the @option{-k} 5725824d651Sblueswir1parameter to set the keyboard layout if you are not using en-us. Valid 5735824d651Sblueswir1syntax for the @var{display} is 5745824d651Sblueswir1 575b3f046c2SKevin Wolf@table @option 5765824d651Sblueswir1 5775824d651Sblueswir1@item @var{host}:@var{d} 5785824d651Sblueswir1 5795824d651Sblueswir1TCP connections will only be allowed from @var{host} on display @var{d}. 5805824d651Sblueswir1By convention the TCP port is 5900+@var{d}. Optionally, @var{host} can 5815824d651Sblueswir1be omitted in which case the server will accept connections from any host. 5825824d651Sblueswir1 5834e257e5eSKevin Wolf@item unix:@var{path} 5845824d651Sblueswir1 5855824d651Sblueswir1Connections will be allowed over UNIX domain sockets where @var{path} is the 5865824d651Sblueswir1location of a unix socket to listen for connections on. 5875824d651Sblueswir1 5885824d651Sblueswir1@item none 5895824d651Sblueswir1 5905824d651Sblueswir1VNC is initialized but not started. The monitor @code{change} command 5915824d651Sblueswir1can be used to later start the VNC server. 5925824d651Sblueswir1 5935824d651Sblueswir1@end table 5945824d651Sblueswir1 5955824d651Sblueswir1Following the @var{display} value there may be one or more @var{option} flags 5965824d651Sblueswir1separated by commas. Valid options are 5975824d651Sblueswir1 598b3f046c2SKevin Wolf@table @option 5995824d651Sblueswir1 6005824d651Sblueswir1@item reverse 6015824d651Sblueswir1 6025824d651Sblueswir1Connect to a listening VNC client via a ``reverse'' connection. The 6035824d651Sblueswir1client is specified by the @var{display}. For reverse network 6045824d651Sblueswir1connections (@var{host}:@var{d},@code{reverse}), the @var{d} argument 6055824d651Sblueswir1is a TCP port number, not a display number. 6065824d651Sblueswir1 6075824d651Sblueswir1@item password 6085824d651Sblueswir1 6095824d651Sblueswir1Require that password based authentication is used for client connections. 6105824d651Sblueswir1The password must be set separately using the @code{change} command in the 6115824d651Sblueswir1@ref{pcsys_monitor} 6125824d651Sblueswir1 6135824d651Sblueswir1@item tls 6145824d651Sblueswir1 6155824d651Sblueswir1Require that client use TLS when communicating with the VNC server. This 6165824d651Sblueswir1uses anonymous TLS credentials so is susceptible to a man-in-the-middle 6175824d651Sblueswir1attack. It is recommended that this option be combined with either the 6184e257e5eSKevin Wolf@option{x509} or @option{x509verify} options. 6195824d651Sblueswir1 6205824d651Sblueswir1@item x509=@var{/path/to/certificate/dir} 6215824d651Sblueswir1 6225824d651Sblueswir1Valid if @option{tls} is specified. Require that x509 credentials are used 6235824d651Sblueswir1for negotiating the TLS session. The server will send its x509 certificate 6245824d651Sblueswir1to the client. It is recommended that a password be set on the VNC server 6255824d651Sblueswir1to provide authentication of the client when this is used. The path following 6265824d651Sblueswir1this option specifies where the x509 certificates are to be loaded from. 6275824d651Sblueswir1See the @ref{vnc_security} section for details on generating certificates. 6285824d651Sblueswir1 6295824d651Sblueswir1@item x509verify=@var{/path/to/certificate/dir} 6305824d651Sblueswir1 6315824d651Sblueswir1Valid if @option{tls} is specified. Require that x509 credentials are used 6325824d651Sblueswir1for negotiating the TLS session. The server will send its x509 certificate 6335824d651Sblueswir1to the client, and request that the client send its own x509 certificate. 6345824d651Sblueswir1The server will validate the client's certificate against the CA certificate, 6355824d651Sblueswir1and reject clients when validation fails. If the certificate authority is 6365824d651Sblueswir1trusted, this is a sufficient authentication mechanism. You may still wish 6375824d651Sblueswir1to set a password on the VNC server as a second authentication layer. The 6385824d651Sblueswir1path following this option specifies where the x509 certificates are to 6395824d651Sblueswir1be loaded from. See the @ref{vnc_security} section for details on generating 6405824d651Sblueswir1certificates. 6415824d651Sblueswir1 6425824d651Sblueswir1@item sasl 6435824d651Sblueswir1 6445824d651Sblueswir1Require that the client use SASL to authenticate with the VNC server. 6455824d651Sblueswir1The exact choice of authentication method used is controlled from the 6465824d651Sblueswir1system / user's SASL configuration file for the 'qemu' service. This 6475824d651Sblueswir1is typically found in /etc/sasl2/qemu.conf. If running QEMU as an 6485824d651Sblueswir1unprivileged user, an environment variable SASL_CONF_PATH can be used 6495824d651Sblueswir1to make it search alternate locations for the service config. 6505824d651Sblueswir1While some SASL auth methods can also provide data encryption (eg GSSAPI), 6515824d651Sblueswir1it is recommended that SASL always be combined with the 'tls' and 6525824d651Sblueswir1'x509' settings to enable use of SSL and server certificates. This 6535824d651Sblueswir1ensures a data encryption preventing compromise of authentication 6545824d651Sblueswir1credentials. See the @ref{vnc_security} section for details on using 6555824d651Sblueswir1SASL authentication. 6565824d651Sblueswir1 6575824d651Sblueswir1@item acl 6585824d651Sblueswir1 6595824d651Sblueswir1Turn on access control lists for checking of the x509 client certificate 6605824d651Sblueswir1and SASL party. For x509 certs, the ACL check is made against the 6615824d651Sblueswir1certificate's distinguished name. This is something that looks like 6625824d651Sblueswir1@code{C=GB,O=ACME,L=Boston,CN=bob}. For SASL party, the ACL check is 6635824d651Sblueswir1made against the username, which depending on the SASL plugin, may 6645824d651Sblueswir1include a realm component, eg @code{bob} or @code{bob@@EXAMPLE.COM}. 6655824d651Sblueswir1When the @option{acl} flag is set, the initial access list will be 6665824d651Sblueswir1empty, with a @code{deny} policy. Thus no one will be allowed to 6675824d651Sblueswir1use the VNC server until the ACLs have been loaded. This can be 6685824d651Sblueswir1achieved using the @code{acl} monitor command. 6695824d651Sblueswir1 6705824d651Sblueswir1@end table 6715824d651Sblueswir1ETEXI 6725824d651Sblueswir1 6735824d651Sblueswir1STEXI 6745824d651Sblueswir1@end table 6755824d651Sblueswir1ETEXI 6765824d651Sblueswir1 6775824d651Sblueswir1DEFHEADING() 6785824d651Sblueswir1 6795824d651Sblueswir1#ifdef TARGET_I386 6805824d651Sblueswir1DEFHEADING(i386 target only:) 6815824d651Sblueswir1#endif 6825824d651Sblueswir1STEXI 6835824d651Sblueswir1@table @option 6845824d651Sblueswir1ETEXI 6855824d651Sblueswir1 6865824d651Sblueswir1#ifdef TARGET_I386 6875824d651Sblueswir1DEF("win2k-hack", 0, QEMU_OPTION_win2k_hack, 6885824d651Sblueswir1 "-win2k-hack use it when installing Windows 2000 to avoid a disk full bug\n") 6895824d651Sblueswir1#endif 6905824d651Sblueswir1STEXI 6915824d651Sblueswir1@item -win2k-hack 6925824d651Sblueswir1Use it when installing Windows 2000 to avoid a disk full bug. After 6935824d651Sblueswir1Windows 2000 is installed, you no longer need this option (this option 6945824d651Sblueswir1slows down the IDE transfers). 6955824d651Sblueswir1ETEXI 6965824d651Sblueswir1 6975824d651Sblueswir1#ifdef TARGET_I386 6981ed2fc1fSJan KiszkaHXCOMM Deprecated by -rtc 6991ed2fc1fSJan KiszkaDEF("rtc-td-hack", 0, QEMU_OPTION_rtc_td_hack, "") 7005824d651Sblueswir1#endif 7015824d651Sblueswir1 7025824d651Sblueswir1#ifdef TARGET_I386 7035824d651Sblueswir1DEF("no-fd-bootchk", 0, QEMU_OPTION_no_fd_bootchk, 7045824d651Sblueswir1 "-no-fd-bootchk disable boot signature checking for floppy disks\n") 7055824d651Sblueswir1#endif 7065824d651Sblueswir1STEXI 7075824d651Sblueswir1@item -no-fd-bootchk 7085824d651Sblueswir1Disable boot signature checking for floppy disks in Bochs BIOS. It may 7095824d651Sblueswir1be needed to boot from old floppy disks. 7105824d651Sblueswir1ETEXI 7115824d651Sblueswir1 7125824d651Sblueswir1#ifdef TARGET_I386 7135824d651Sblueswir1DEF("no-acpi", 0, QEMU_OPTION_no_acpi, 7145824d651Sblueswir1 "-no-acpi disable ACPI\n") 7155824d651Sblueswir1#endif 7165824d651Sblueswir1STEXI 7175824d651Sblueswir1@item -no-acpi 7185824d651Sblueswir1Disable ACPI (Advanced Configuration and Power Interface) support. Use 7195824d651Sblueswir1it if your guest OS complains about ACPI problems (PC target machine 7205824d651Sblueswir1only). 7215824d651Sblueswir1ETEXI 7225824d651Sblueswir1 7235824d651Sblueswir1#ifdef TARGET_I386 7245824d651Sblueswir1DEF("no-hpet", 0, QEMU_OPTION_no_hpet, 7255824d651Sblueswir1 "-no-hpet disable HPET\n") 7265824d651Sblueswir1#endif 7275824d651Sblueswir1STEXI 7285824d651Sblueswir1@item -no-hpet 7295824d651Sblueswir1Disable HPET support. 7305824d651Sblueswir1ETEXI 7315824d651Sblueswir1 7325824d651Sblueswir1#ifdef TARGET_I386 7337d4c3d53SMarkus ArmbrusterDEF("balloon", HAS_ARG, QEMU_OPTION_balloon, 7347d4c3d53SMarkus Armbruster "-balloon none disable balloon device\n" 7357d4c3d53SMarkus Armbruster "-balloon virtio[,addr=str]\n" 7367d4c3d53SMarkus Armbruster " enable virtio balloon device (default)\n") 737df97b920SEduardo Habkost#endif 738df97b920SEduardo HabkostSTEXI 7397d4c3d53SMarkus Armbruster@item -balloon none 7407d4c3d53SMarkus ArmbrusterDisable balloon device. 7417d4c3d53SMarkus Armbruster@item -balloon virtio[,addr=@var{addr}] 7427d4c3d53SMarkus ArmbrusterEnable virtio balloon device (default), optionally with PCI address 7437d4c3d53SMarkus Armbruster@var{addr}. 744df97b920SEduardo HabkostETEXI 745df97b920SEduardo Habkost 746df97b920SEduardo Habkost#ifdef TARGET_I386 7475824d651Sblueswir1DEF("acpitable", HAS_ARG, QEMU_OPTION_acpitable, 7485824d651Sblueswir1 "-acpitable [sig=str][,rev=n][,oem_id=str][,oem_table_id=str][,oem_rev=n][,asl_compiler_id=str][,asl_compiler_rev=n][,data=file1[:file2]...]\n" 7495824d651Sblueswir1 " ACPI table description\n") 7505824d651Sblueswir1#endif 7515824d651Sblueswir1STEXI 7525824d651Sblueswir1@item -acpitable [sig=@var{str}][,rev=@var{n}][,oem_id=@var{str}][,oem_table_id=@var{str}][,oem_rev=@var{n}] [,asl_compiler_id=@var{str}][,asl_compiler_rev=@var{n}][,data=@var{file1}[:@var{file2}]...] 7535824d651Sblueswir1Add ACPI table with specified header fields and context from specified files. 7545824d651Sblueswir1ETEXI 7555824d651Sblueswir1 7565824d651Sblueswir1#ifdef TARGET_I386 757b6f6e3d3SaliguoriDEF("smbios", HAS_ARG, QEMU_OPTION_smbios, 758b6f6e3d3Saliguori "-smbios file=binary\n" 759b6f6e3d3Saliguori " Load SMBIOS entry from binary file\n" 760b6f6e3d3Saliguori "-smbios type=0[,vendor=str][,version=str][,date=str][,release=%%d.%%d]\n" 761b6f6e3d3Saliguori " Specify SMBIOS type 0 fields\n" 762b6f6e3d3Saliguori "-smbios type=1[,manufacturer=str][,product=str][,version=str][,serial=str]\n" 763b6f6e3d3Saliguori " [,uuid=uuid][,sku=str][,family=str]\n" 764b6f6e3d3Saliguori " Specify SMBIOS type 1 fields\n") 765b6f6e3d3Saliguori#endif 766b6f6e3d3SaliguoriSTEXI 767b6f6e3d3Saliguori@item -smbios file=@var{binary} 768b6f6e3d3SaliguoriLoad SMBIOS entry from binary file. 769b6f6e3d3Saliguori 770b6f6e3d3Saliguori@item -smbios type=0[,vendor=@var{str}][,version=@var{str}][,date=@var{str}][,release=@var{%d.%d}] 771b6f6e3d3SaliguoriSpecify SMBIOS type 0 fields 772b6f6e3d3Saliguori 773b6f6e3d3Saliguori@item -smbios type=1[,manufacturer=@var{str}][,product=@var{str}][,version=@var{str}][,serial=@var{str}][,uuid=@var{uuid}][,sku=@var{str}][,family=@var{str}] 774b6f6e3d3SaliguoriSpecify SMBIOS type 1 fields 775b6f6e3d3SaliguoriETEXI 776b6f6e3d3Saliguori 777b6f6e3d3Saliguori#ifdef TARGET_I386 7785824d651Sblueswir1DEFHEADING() 7795824d651Sblueswir1#endif 7805824d651Sblueswir1STEXI 7815824d651Sblueswir1@end table 7825824d651Sblueswir1ETEXI 7835824d651Sblueswir1 7845824d651Sblueswir1DEFHEADING(Network options:) 7855824d651Sblueswir1STEXI 7865824d651Sblueswir1@table @option 7875824d651Sblueswir1ETEXI 7885824d651Sblueswir1 789ad196a9dSJan KiszkaHXCOMM Legacy slirp options (now moved to -net user): 790ad196a9dSJan Kiszka#ifdef CONFIG_SLIRP 791ad196a9dSJan KiszkaDEF("tftp", HAS_ARG, QEMU_OPTION_tftp, "") 792ad196a9dSJan KiszkaDEF("bootp", HAS_ARG, QEMU_OPTION_bootp, "") 793ad196a9dSJan KiszkaDEF("redir", HAS_ARG, QEMU_OPTION_redir, "") 794ad196a9dSJan Kiszka#ifndef _WIN32 795ad196a9dSJan KiszkaDEF("smb", HAS_ARG, QEMU_OPTION_smb, "") 796ad196a9dSJan Kiszka#endif 797ad196a9dSJan Kiszka#endif 798ad196a9dSJan Kiszka 799bab7944cSBlue SwirlDEF("net", HAS_ARG, QEMU_OPTION_net, 800ffe6370cSMichael S. Tsirkin "-net nic[,vlan=n][,macaddr=mac][,model=type][,name=str][,addr=str][,vectors=v]\n" 8015824d651Sblueswir1 " create a new Network Interface Card and connect it to VLAN 'n'\n" 8025824d651Sblueswir1#ifdef CONFIG_SLIRP 803c92ef6a2SJan Kiszka "-net user[,vlan=n][,name=str][,net=addr[/mask]][,host=addr][,restrict=y|n]\n" 804c92ef6a2SJan Kiszka " [,hostname=host][,dhcpstart=addr][,dns=addr][,tftp=dir][,bootfile=f]\n" 805c92ef6a2SJan Kiszka " [,hostfwd=rule][,guestfwd=rule]" 806ad196a9dSJan Kiszka#ifndef _WIN32 807c92ef6a2SJan Kiszka "[,smb=dir[,smbserver=addr]]\n" 808ad196a9dSJan Kiszka#endif 809ad196a9dSJan Kiszka " connect the user mode network stack to VLAN 'n', configure its\n" 810ad196a9dSJan Kiszka " DHCP server and enabled optional services\n" 8115824d651Sblueswir1#endif 8125824d651Sblueswir1#ifdef _WIN32 8135824d651Sblueswir1 "-net tap[,vlan=n][,name=str],ifname=name\n" 8145824d651Sblueswir1 " connect the host TAP network interface to VLAN 'n'\n" 8155824d651Sblueswir1#else 816baf74c95SMark McLoughlin "-net tap[,vlan=n][,name=str][,fd=h][,ifname=name][,script=file][,downscript=dfile][,sndbuf=nbytes][,vnet_hdr=on|off]\n" 8175824d651Sblueswir1 " connect the host TAP network interface to VLAN 'n' and use the\n" 8185824d651Sblueswir1 " network scripts 'file' (default=%s)\n" 8195824d651Sblueswir1 " and 'dfile' (default=%s);\n" 8205824d651Sblueswir1 " use '[down]script=no' to disable script execution;\n" 8215824d651Sblueswir1 " use 'fd=h' to connect to an already opened TAP interface\n" 822fc5b81d1SMark McLoughlin " use 'sndbuf=nbytes' to limit the size of the send buffer; the\n" 823fc5b81d1SMark McLoughlin " default of 'sndbuf=1048576' can be disabled using 'sndbuf=0'\n" 824baf74c95SMark McLoughlin " use vnet_hdr=off to avoid enabling the IFF_VNET_HDR tap flag; use\n" 825baf74c95SMark McLoughlin " vnet_hdr=on to make the lack of IFF_VNET_HDR support an error condition\n" 8260df0ff6dSMark McLoughlin#endif 8275824d651Sblueswir1 "-net socket[,vlan=n][,name=str][,fd=h][,listen=[host]:port][,connect=host:port]\n" 8285824d651Sblueswir1 " connect the vlan 'n' to another VLAN using a socket connection\n" 8295824d651Sblueswir1 "-net socket[,vlan=n][,name=str][,fd=h][,mcast=maddr:port]\n" 8305824d651Sblueswir1 " connect the vlan 'n' to multicast maddr and port\n" 8315824d651Sblueswir1#ifdef CONFIG_VDE 8325824d651Sblueswir1 "-net vde[,vlan=n][,name=str][,sock=socketpath][,port=n][,group=groupname][,mode=octalmode]\n" 8335824d651Sblueswir1 " connect the vlan 'n' to port 'n' of a vde switch running\n" 8345824d651Sblueswir1 " on host and listening for incoming connections on 'socketpath'.\n" 8355824d651Sblueswir1 " Use group 'groupname' and mode 'octalmode' to change default\n" 8365824d651Sblueswir1 " ownership and permissions for communication port.\n" 8375824d651Sblueswir1#endif 838bb9ea79eSaliguori "-net dump[,vlan=n][,file=f][,len=n]\n" 839bb9ea79eSaliguori " dump traffic on vlan 'n' to file 'f' (max n bytes per packet)\n" 8405824d651Sblueswir1 "-net none use it alone to have zero network devices; if no -net option\n" 8415824d651Sblueswir1 " is provided, the default is '-net nic -net user'\n") 842a1ea458fSMark McLoughlinDEF("netdev", HAS_ARG, QEMU_OPTION_netdev, 843a1ea458fSMark McLoughlin "-netdev [" 844a1ea458fSMark McLoughlin#ifdef CONFIG_SLIRP 845a1ea458fSMark McLoughlin "user|" 846a1ea458fSMark McLoughlin#endif 847a1ea458fSMark McLoughlin "tap|" 848a1ea458fSMark McLoughlin#ifdef CONFIG_VDE 849a1ea458fSMark McLoughlin "vde|" 850a1ea458fSMark McLoughlin#endif 851a1ea458fSMark McLoughlin "socket],id=str[,option][,option][,...]\n") 8525824d651Sblueswir1STEXI 853ffe6370cSMichael S. Tsirkin@item -net nic[,vlan=@var{n}][,macaddr=@var{mac}][,model=@var{type}][,name=@var{name}][,addr=@var{addr}][,vectors=@var{v}] 8545824d651Sblueswir1Create a new Network Interface Card and connect it to VLAN @var{n} (@var{n} 8550d6b0b1dSAnthony Liguori= 0 is the default). The NIC is an e1000 by default on the PC 8565607c388SMarkus Armbrustertarget. Optionally, the MAC address can be changed to @var{mac}, the 8575607c388SMarkus Armbrusterdevice address set to @var{addr} (PCI cards only), 858ffe6370cSMichael S. Tsirkinand a @var{name} can be assigned for use in monitor commands. 859ffe6370cSMichael S. TsirkinOptionally, for PCI cards, you can specify the number @var{v} of MSI-X vectors 860ffe6370cSMichael S. Tsirkinthat the card should have; this option currently only affects virtio cards; set 861ffe6370cSMichael S. Tsirkin@var{v} = 0 to disable MSI-X. If no @option{-net} option is specified, a single 862ffe6370cSMichael S. TsirkinNIC is created. Qemu can emulate several different models of network card. 8635824d651Sblueswir1Valid values for @var{type} are 864ffe6370cSMichael S. Tsirkin@code{virtio}, @code{i82551}, @code{i82557b}, @code{i82559er}, 8655824d651Sblueswir1@code{ne2k_pci}, @code{ne2k_isa}, @code{pcnet}, @code{rtl8139}, 8665824d651Sblueswir1@code{e1000}, @code{smc91c111}, @code{lance} and @code{mcf_fec}. 8675824d651Sblueswir1Not all devices are supported on all targets. Use -net nic,model=? 8685824d651Sblueswir1for a list of available devices for your target. 8695824d651Sblueswir1 870ad196a9dSJan Kiszka@item -net user[,@var{option}][,@var{option}][,...] 8715824d651Sblueswir1Use the user mode network stack which requires no administrator 872ad196a9dSJan Kiszkaprivilege to run. Valid options are: 8735824d651Sblueswir1 874b3f046c2SKevin Wolf@table @option 875ad196a9dSJan Kiszka@item vlan=@var{n} 876ad196a9dSJan KiszkaConnect user mode stack to VLAN @var{n} (@var{n} = 0 is the default). 877ad196a9dSJan Kiszka 878ad196a9dSJan Kiszka@item name=@var{name} 879ad196a9dSJan KiszkaAssign symbolic name for use in monitor commands. 880ad196a9dSJan Kiszka 881c92ef6a2SJan Kiszka@item net=@var{addr}[/@var{mask}] 882c92ef6a2SJan KiszkaSet IP network address the guest will see. Optionally specify the netmask, 883c92ef6a2SJan Kiszkaeither in the form a.b.c.d or as number of valid top-most bits. Default is 884c92ef6a2SJan Kiszka10.0.2.0/8. 885c92ef6a2SJan Kiszka 886c92ef6a2SJan Kiszka@item host=@var{addr} 887c92ef6a2SJan KiszkaSpecify the guest-visible address of the host. Default is the 2nd IP in the 888c92ef6a2SJan Kiszkaguest network, i.e. x.x.x.2. 889ad196a9dSJan Kiszka 890ad196a9dSJan Kiszka@item restrict=y|yes|n|no 891ad196a9dSJan KiszkaIf this options is enabled, the guest will be isolated, i.e. it will not be 892ad196a9dSJan Kiszkaable to contact the host and no guest IP packets will be routed over the host 893ad196a9dSJan Kiszkato the outside. This option does not affect explicitly set forwarding rule. 894ad196a9dSJan Kiszka 895ad196a9dSJan Kiszka@item hostname=@var{name} 896ad196a9dSJan KiszkaSpecifies the client hostname reported by the builtin DHCP server. 897ad196a9dSJan Kiszka 898c92ef6a2SJan Kiszka@item dhcpstart=@var{addr} 899c92ef6a2SJan KiszkaSpecify the first of the 16 IPs the built-in DHCP server can assign. Default 900c92ef6a2SJan Kiszkais the 16th to 31st IP in the guest network, i.e. x.x.x.16 to x.x.x.31. 901c92ef6a2SJan Kiszka 902c92ef6a2SJan Kiszka@item dns=@var{addr} 903c92ef6a2SJan KiszkaSpecify the guest-visible address of the virtual nameserver. The address must 904c92ef6a2SJan Kiszkabe different from the host address. Default is the 3rd IP in the guest network, 905c92ef6a2SJan Kiszkai.e. x.x.x.3. 906c92ef6a2SJan Kiszka 907ad196a9dSJan Kiszka@item tftp=@var{dir} 908ad196a9dSJan KiszkaWhen using the user mode network stack, activate a built-in TFTP 909ad196a9dSJan Kiszkaserver. The files in @var{dir} will be exposed as the root of a TFTP server. 910ad196a9dSJan KiszkaThe TFTP client on the guest must be configured in binary mode (use the command 911c92ef6a2SJan Kiszka@code{bin} of the Unix TFTP client). 912ad196a9dSJan Kiszka 913ad196a9dSJan Kiszka@item bootfile=@var{file} 914ad196a9dSJan KiszkaWhen using the user mode network stack, broadcast @var{file} as the BOOTP 915ad196a9dSJan Kiszkafilename. In conjunction with @option{tftp}, this can be used to network boot 916ad196a9dSJan Kiszkaa guest from a local directory. 917ad196a9dSJan Kiszka 918ad196a9dSJan KiszkaExample (using pxelinux): 919ad196a9dSJan Kiszka@example 920ad196a9dSJan Kiszkaqemu -hda linux.img -boot n -net user,tftp=/path/to/tftp/files,bootfile=/pxelinux.0 921ad196a9dSJan Kiszka@end example 922ad196a9dSJan Kiszka 923c92ef6a2SJan Kiszka@item smb=@var{dir}[,smbserver=@var{addr}] 924ad196a9dSJan KiszkaWhen using the user mode network stack, activate a built-in SMB 925ad196a9dSJan Kiszkaserver so that Windows OSes can access to the host files in @file{@var{dir}} 926c92ef6a2SJan Kiszkatransparently. The IP address of the SMB server can be set to @var{addr}. By 927c92ef6a2SJan Kiszkadefault the 4th IP in the guest network is used, i.e. x.x.x.4. 928ad196a9dSJan Kiszka 929ad196a9dSJan KiszkaIn the guest Windows OS, the line: 930ad196a9dSJan Kiszka@example 931ad196a9dSJan Kiszka10.0.2.4 smbserver 932ad196a9dSJan Kiszka@end example 933ad196a9dSJan Kiszkamust be added in the file @file{C:\WINDOWS\LMHOSTS} (for windows 9x/Me) 934ad196a9dSJan Kiszkaor @file{C:\WINNT\SYSTEM32\DRIVERS\ETC\LMHOSTS} (Windows NT/2000). 935ad196a9dSJan Kiszka 936ad196a9dSJan KiszkaThen @file{@var{dir}} can be accessed in @file{\\smbserver\qemu}. 937ad196a9dSJan Kiszka 938ad196a9dSJan KiszkaNote that a SAMBA server must be installed on the host OS in 939ad196a9dSJan Kiszka@file{/usr/sbin/smbd}. QEMU was tested successfully with smbd versions from 940ad196a9dSJan KiszkaRed Hat 9, Fedora Core 3 and OpenSUSE 11.x. 941ad196a9dSJan Kiszka 9423c6a0580SJan Kiszka@item hostfwd=[tcp|udp]:[@var{hostaddr}]:@var{hostport}-[@var{guestaddr}]:@var{guestport} 943c92ef6a2SJan KiszkaRedirect incoming TCP or UDP connections to the host port @var{hostport} to 944c92ef6a2SJan Kiszkathe guest IP address @var{guestaddr} on guest port @var{guestport}. If 945c92ef6a2SJan Kiszka@var{guestaddr} is not specified, its value is x.x.x.15 (default first address 9463c6a0580SJan Kiszkagiven by the built-in DHCP server). By specifying @var{hostaddr}, the rule can 9473c6a0580SJan Kiszkabe bound to a specific host interface. If no connection type is set, TCP is 948c92ef6a2SJan Kiszkaused. This option can be given multiple times. 949ad196a9dSJan Kiszka 950ad196a9dSJan KiszkaFor example, to redirect host X11 connection from screen 1 to guest 951ad196a9dSJan Kiszkascreen 0, use the following: 952ad196a9dSJan Kiszka 953ad196a9dSJan Kiszka@example 954ad196a9dSJan Kiszka# on the host 9553c6a0580SJan Kiszkaqemu -net user,hostfwd=tcp:127.0.0.1:6001-:6000 [...] 956ad196a9dSJan Kiszka# this host xterm should open in the guest X11 server 957ad196a9dSJan Kiszkaxterm -display :1 958ad196a9dSJan Kiszka@end example 959ad196a9dSJan Kiszka 960ad196a9dSJan KiszkaTo redirect telnet connections from host port 5555 to telnet port on 961ad196a9dSJan Kiszkathe guest, use the following: 962ad196a9dSJan Kiszka 963ad196a9dSJan Kiszka@example 964ad196a9dSJan Kiszka# on the host 965c92ef6a2SJan Kiszkaqemu -net user,hostfwd=tcp:5555::23 [...] 966ad196a9dSJan Kiszkatelnet localhost 5555 967ad196a9dSJan Kiszka@end example 968ad196a9dSJan Kiszka 969ad196a9dSJan KiszkaThen when you use on the host @code{telnet localhost 5555}, you 970ad196a9dSJan Kiszkaconnect to the guest telnet server. 971ad196a9dSJan Kiszka 972c92ef6a2SJan Kiszka@item guestfwd=[tcp]:@var{server}:@var{port}-@var{dev} 9733c6a0580SJan KiszkaForward guest TCP connections to the IP address @var{server} on port @var{port} 9743c6a0580SJan Kiszkato the character device @var{dev}. This option can be given multiple times. 975ad196a9dSJan Kiszka 976ad196a9dSJan Kiszka@end table 977ad196a9dSJan Kiszka 978ad196a9dSJan KiszkaNote: Legacy stand-alone options -tftp, -bootp, -smb and -redir are still 979ad196a9dSJan Kiszkaprocessed and applied to -net user. Mixing them with the new configuration 980ad196a9dSJan Kiszkasyntax gives undefined results. Their use for new applications is discouraged 981ad196a9dSJan Kiszkaas they will be removed from future versions. 9825824d651Sblueswir1 9835824d651Sblueswir1@item -net tap[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}][,ifname=@var{name}][,script=@var{file}][,downscript=@var{dfile}] 9845824d651Sblueswir1Connect the host TAP network interface @var{name} to VLAN @var{n}, use 9855824d651Sblueswir1the network script @var{file} to configure it and the network script 9865824d651Sblueswir1@var{dfile} to deconfigure it. If @var{name} is not provided, the OS 9875824d651Sblueswir1automatically provides one. @option{fd}=@var{h} can be used to specify 9885824d651Sblueswir1the handle of an already opened host TAP interface. The default network 9895824d651Sblueswir1configure script is @file{/etc/qemu-ifup} and the default network 9905824d651Sblueswir1deconfigure script is @file{/etc/qemu-ifdown}. Use @option{script=no} 9915824d651Sblueswir1or @option{downscript=no} to disable script execution. Example: 9925824d651Sblueswir1 9935824d651Sblueswir1@example 9945824d651Sblueswir1qemu linux.img -net nic -net tap 9955824d651Sblueswir1@end example 9965824d651Sblueswir1 9975824d651Sblueswir1More complicated example (two NICs, each one connected to a TAP device) 9985824d651Sblueswir1@example 9995824d651Sblueswir1qemu linux.img -net nic,vlan=0 -net tap,vlan=0,ifname=tap0 \ 10005824d651Sblueswir1 -net nic,vlan=1 -net tap,vlan=1,ifname=tap1 10015824d651Sblueswir1@end example 10025824d651Sblueswir1 10035824d651Sblueswir1@item -net socket[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}][,listen=[@var{host}]:@var{port}][,connect=@var{host}:@var{port}] 10045824d651Sblueswir1 10055824d651Sblueswir1Connect the VLAN @var{n} to a remote VLAN in another QEMU virtual 10065824d651Sblueswir1machine using a TCP socket connection. If @option{listen} is 10075824d651Sblueswir1specified, QEMU waits for incoming connections on @var{port} 10085824d651Sblueswir1(@var{host} is optional). @option{connect} is used to connect to 10095824d651Sblueswir1another QEMU instance using the @option{listen} option. @option{fd}=@var{h} 10105824d651Sblueswir1specifies an already opened TCP socket. 10115824d651Sblueswir1 10125824d651Sblueswir1Example: 10135824d651Sblueswir1@example 10145824d651Sblueswir1# launch a first QEMU instance 10155824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \ 10165824d651Sblueswir1 -net socket,listen=:1234 10175824d651Sblueswir1# connect the VLAN 0 of this instance to the VLAN 0 10185824d651Sblueswir1# of the first instance 10195824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:57 \ 10205824d651Sblueswir1 -net socket,connect=127.0.0.1:1234 10215824d651Sblueswir1@end example 10225824d651Sblueswir1 10235824d651Sblueswir1@item -net socket[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}][,mcast=@var{maddr}:@var{port}] 10245824d651Sblueswir1 10255824d651Sblueswir1Create a VLAN @var{n} shared with another QEMU virtual 10265824d651Sblueswir1machines using a UDP multicast socket, effectively making a bus for 10275824d651Sblueswir1every QEMU with same multicast address @var{maddr} and @var{port}. 10285824d651Sblueswir1NOTES: 10295824d651Sblueswir1@enumerate 10305824d651Sblueswir1@item 10315824d651Sblueswir1Several QEMU can be running on different hosts and share same bus (assuming 10325824d651Sblueswir1correct multicast setup for these hosts). 10335824d651Sblueswir1@item 10345824d651Sblueswir1mcast support is compatible with User Mode Linux (argument @option{eth@var{N}=mcast}), see 10355824d651Sblueswir1@url{http://user-mode-linux.sf.net}. 10365824d651Sblueswir1@item 10375824d651Sblueswir1Use @option{fd=h} to specify an already opened UDP multicast socket. 10385824d651Sblueswir1@end enumerate 10395824d651Sblueswir1 10405824d651Sblueswir1Example: 10415824d651Sblueswir1@example 10425824d651Sblueswir1# launch one QEMU instance 10435824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \ 10445824d651Sblueswir1 -net socket,mcast=230.0.0.1:1234 10455824d651Sblueswir1# launch another QEMU instance on same "bus" 10465824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:57 \ 10475824d651Sblueswir1 -net socket,mcast=230.0.0.1:1234 10485824d651Sblueswir1# launch yet another QEMU instance on same "bus" 10495824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:58 \ 10505824d651Sblueswir1 -net socket,mcast=230.0.0.1:1234 10515824d651Sblueswir1@end example 10525824d651Sblueswir1 10535824d651Sblueswir1Example (User Mode Linux compat.): 10545824d651Sblueswir1@example 10555824d651Sblueswir1# launch QEMU instance (note mcast address selected 10565824d651Sblueswir1# is UML's default) 10575824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \ 10585824d651Sblueswir1 -net socket,mcast=239.192.168.1:1102 10595824d651Sblueswir1# launch UML 10605824d651Sblueswir1/path/to/linux ubd0=/path/to/root_fs eth0=mcast 10615824d651Sblueswir1@end example 10625824d651Sblueswir1 10635824d651Sblueswir1@item -net vde[,vlan=@var{n}][,name=@var{name}][,sock=@var{socketpath}][,port=@var{n}][,group=@var{groupname}][,mode=@var{octalmode}] 10645824d651Sblueswir1Connect VLAN @var{n} to PORT @var{n} of a vde switch running on host and 10655824d651Sblueswir1listening for incoming connections on @var{socketpath}. Use GROUP @var{groupname} 10665824d651Sblueswir1and MODE @var{octalmode} to change default ownership and permissions for 10675824d651Sblueswir1communication port. This option is available only if QEMU has been compiled 10685824d651Sblueswir1with vde support enabled. 10695824d651Sblueswir1 10705824d651Sblueswir1Example: 10715824d651Sblueswir1@example 10725824d651Sblueswir1# launch vde switch 10735824d651Sblueswir1vde_switch -F -sock /tmp/myswitch 10745824d651Sblueswir1# launch QEMU instance 10755824d651Sblueswir1qemu linux.img -net nic -net vde,sock=/tmp/myswitch 10765824d651Sblueswir1@end example 10775824d651Sblueswir1 1078bb9ea79eSaliguori@item -net dump[,vlan=@var{n}][,file=@var{file}][,len=@var{len}] 1079bb9ea79eSaliguoriDump network traffic on VLAN @var{n} to file @var{file} (@file{qemu-vlan0.pcap} by default). 1080bb9ea79eSaliguoriAt most @var{len} bytes (64k by default) per packet are stored. The file format is 1081bb9ea79eSaliguorilibpcap, so it can be analyzed with tools such as tcpdump or Wireshark. 1082bb9ea79eSaliguori 10835824d651Sblueswir1@item -net none 10845824d651Sblueswir1Indicate that no network devices should be configured. It is used to 10855824d651Sblueswir1override the default configuration (@option{-net nic -net user}) which 10865824d651Sblueswir1is activated if no @option{-net} options are provided. 10875824d651Sblueswir1 10885824d651Sblueswir1@end table 10895824d651Sblueswir1ETEXI 10905824d651Sblueswir1 10917273a2dbSMatthew BoothDEFHEADING() 10927273a2dbSMatthew Booth 10937273a2dbSMatthew BoothDEFHEADING(Character device options:) 10947273a2dbSMatthew Booth 10957273a2dbSMatthew BoothDEF("chardev", HAS_ARG, QEMU_OPTION_chardev, 10967273a2dbSMatthew Booth "-chardev null,id=id\n" 10977273a2dbSMatthew Booth "-chardev socket,id=id[,host=host],port=host[,to=to][,ipv4][,ipv6][,nodelay]\n" 10987273a2dbSMatthew Booth " [,server][,nowait][,telnet] (tcp)\n" 10997273a2dbSMatthew Booth "-chardev socket,id=id,path=path[,server][,nowait][,telnet] (unix)\n" 11007273a2dbSMatthew Booth "-chardev udp,id=id[,host=host],port=port[,localaddr=localaddr]\n" 11017273a2dbSMatthew Booth " [,localport=localport][,ipv4][,ipv6]\n" 11027273a2dbSMatthew Booth "-chardev msmouse,id=id\n" 11037273a2dbSMatthew Booth "-chardev vc,id=id[[,width=width][,height=height]][[,cols=cols][,rows=rows]]\n" 11047273a2dbSMatthew Booth "-chardev file,id=id,path=path\n" 11057273a2dbSMatthew Booth "-chardev pipe,id=id,path=path\n" 11067273a2dbSMatthew Booth#ifdef _WIN32 11077273a2dbSMatthew Booth "-chardev console,id=id\n" 11087273a2dbSMatthew Booth "-chardev serial,id=id,path=path\n" 11097273a2dbSMatthew Booth#else 11107273a2dbSMatthew Booth "-chardev pty,id=id\n" 11117273a2dbSMatthew Booth "-chardev stdio,id=id\n" 11127273a2dbSMatthew Booth#endif 11137273a2dbSMatthew Booth#ifdef CONFIG_BRLAPI 11147273a2dbSMatthew Booth "-chardev braille,id=id\n" 11157273a2dbSMatthew Booth#endif 11167273a2dbSMatthew Booth#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ 11177273a2dbSMatthew Booth || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) 11187273a2dbSMatthew Booth "-chardev tty,id=id,path=path\n" 11197273a2dbSMatthew Booth#endif 11207273a2dbSMatthew Booth#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) 11217273a2dbSMatthew Booth "-chardev parport,id=id,path=path\n" 11227273a2dbSMatthew Booth#endif 11237273a2dbSMatthew Booth) 11247273a2dbSMatthew Booth 11257273a2dbSMatthew BoothSTEXI 11267273a2dbSMatthew Booth 11277273a2dbSMatthew BoothThe general form of a character device option is: 11287273a2dbSMatthew Booth@table @option 11297273a2dbSMatthew Booth 11307273a2dbSMatthew Booth@item -chardev @var{backend} ,id=@var{id} [,@var{options}] 11317273a2dbSMatthew Booth 11327273a2dbSMatthew BoothBackend is one of: 11337273a2dbSMatthew Booth@option{null}, 11347273a2dbSMatthew Booth@option{socket}, 11357273a2dbSMatthew Booth@option{udp}, 11367273a2dbSMatthew Booth@option{msmouse}, 11377273a2dbSMatthew Booth@option{vc}, 11387273a2dbSMatthew Booth@option{file}, 11397273a2dbSMatthew Booth@option{pipe}, 11407273a2dbSMatthew Booth@option{console}, 11417273a2dbSMatthew Booth@option{serial}, 11427273a2dbSMatthew Booth@option{pty}, 11437273a2dbSMatthew Booth@option{stdio}, 11447273a2dbSMatthew Booth@option{braille}, 11457273a2dbSMatthew Booth@option{tty}, 11467273a2dbSMatthew Booth@option{parport}. 11477273a2dbSMatthew BoothThe specific backend will determine the applicable options. 11487273a2dbSMatthew Booth 11497273a2dbSMatthew BoothAll devices must have an id, which can be any string up to 127 characters long. 11507273a2dbSMatthew BoothIt is used to uniquely identify this device in other command line directives. 11517273a2dbSMatthew Booth 11527273a2dbSMatthew BoothOptions to each backend are described below. 11537273a2dbSMatthew Booth 11547273a2dbSMatthew Booth@item -chardev null ,id=@var{id} 11557273a2dbSMatthew BoothA void device. This device will not emit any data, and will drop any data it 11567273a2dbSMatthew Boothreceives. The null backend does not take any options. 11577273a2dbSMatthew Booth 11587273a2dbSMatthew Booth@item -chardev socket ,id=@var{id} [@var{TCP options} or @var{unix options}] [,server] [,nowait] [,telnet] 11597273a2dbSMatthew Booth 11607273a2dbSMatthew BoothCreate a two-way stream socket, which can be either a TCP or a unix socket. A 11617273a2dbSMatthew Boothunix socket will be created if @option{path} is specified. Behaviour is 11627273a2dbSMatthew Boothundefined if TCP options are specified for a unix socket. 11637273a2dbSMatthew Booth 11647273a2dbSMatthew Booth@option{server} specifies that the socket shall be a listening socket. 11657273a2dbSMatthew Booth 11667273a2dbSMatthew Booth@option{nowait} specifies that QEMU should not block waiting for a client to 11677273a2dbSMatthew Boothconnect to a listening socket. 11687273a2dbSMatthew Booth 11697273a2dbSMatthew Booth@option{telnet} specifies that traffic on the socket should interpret telnet 11707273a2dbSMatthew Boothescape sequences. 11717273a2dbSMatthew Booth 11727273a2dbSMatthew BoothTCP and unix socket options are given below: 11737273a2dbSMatthew Booth 11747273a2dbSMatthew Booth@table @option 11757273a2dbSMatthew Booth 11767273a2dbSMatthew Booth@item TCP options: port=@var{host} [,host=@var{host}] [,to=@var{to}] [,ipv4] [,ipv6] [,nodelay] 11777273a2dbSMatthew Booth 11787273a2dbSMatthew Booth@option{host} for a listening socket specifies the local address to be bound. 11797273a2dbSMatthew BoothFor a connecting socket species the remote host to connect to. @option{host} is 11807273a2dbSMatthew Boothoptional for listening sockets. If not specified it defaults to @code{0.0.0.0}. 11817273a2dbSMatthew Booth 11827273a2dbSMatthew Booth@option{port} for a listening socket specifies the local port to be bound. For a 11837273a2dbSMatthew Boothconnecting socket specifies the port on the remote host to connect to. 11847273a2dbSMatthew Booth@option{port} can be given as either a port number or a service name. 11857273a2dbSMatthew Booth@option{port} is required. 11867273a2dbSMatthew Booth 11877273a2dbSMatthew Booth@option{to} is only relevant to listening sockets. If it is specified, and 11887273a2dbSMatthew Booth@option{port} cannot be bound, QEMU will attempt to bind to subsequent ports up 11897273a2dbSMatthew Boothto and including @option{to} until it succeeds. @option{to} must be specified 11907273a2dbSMatthew Boothas a port number. 11917273a2dbSMatthew Booth 11927273a2dbSMatthew Booth@option{ipv4} and @option{ipv6} specify that either IPv4 or IPv6 must be used. 11937273a2dbSMatthew BoothIf neither is specified the socket may use either protocol. 11947273a2dbSMatthew Booth 11957273a2dbSMatthew Booth@option{nodelay} disables the Nagle algorithm. 11967273a2dbSMatthew Booth 11977273a2dbSMatthew Booth@item unix options: path=@var{path} 11987273a2dbSMatthew Booth 11997273a2dbSMatthew Booth@option{path} specifies the local path of the unix socket. @option{path} is 12007273a2dbSMatthew Boothrequired. 12017273a2dbSMatthew Booth 12027273a2dbSMatthew Booth@end table 12037273a2dbSMatthew Booth 12047273a2dbSMatthew Booth@item -chardev udp ,id=@var{id} [,host=@var{host}] ,port=@var{port} [,localaddr=@var{localaddr}] [,localport=@var{localport}] [,ipv4] [,ipv6] 12057273a2dbSMatthew Booth 12067273a2dbSMatthew BoothSends all traffic from the guest to a remote host over UDP. 12077273a2dbSMatthew Booth 12087273a2dbSMatthew Booth@option{host} specifies the remote host to connect to. If not specified it 12097273a2dbSMatthew Boothdefaults to @code{localhost}. 12107273a2dbSMatthew Booth 12117273a2dbSMatthew Booth@option{port} specifies the port on the remote host to connect to. @option{port} 12127273a2dbSMatthew Boothis required. 12137273a2dbSMatthew Booth 12147273a2dbSMatthew Booth@option{localaddr} specifies the local address to bind to. If not specified it 12157273a2dbSMatthew Boothdefaults to @code{0.0.0.0}. 12167273a2dbSMatthew Booth 12177273a2dbSMatthew Booth@option{localport} specifies the local port to bind to. If not specified any 12187273a2dbSMatthew Boothavailable local port will be used. 12197273a2dbSMatthew Booth 12207273a2dbSMatthew Booth@option{ipv4} and @option{ipv6} specify that either IPv4 or IPv6 must be used. 12217273a2dbSMatthew BoothIf neither is specified the device may use either protocol. 12227273a2dbSMatthew Booth 12237273a2dbSMatthew Booth@item -chardev msmouse ,id=@var{id} 12247273a2dbSMatthew Booth 12257273a2dbSMatthew BoothForward QEMU's emulated msmouse events to the guest. @option{msmouse} does not 12267273a2dbSMatthew Boothtake any options. 12277273a2dbSMatthew Booth 12287273a2dbSMatthew Booth@item -chardev vc ,id=@var{id} [[,width=@var{width}] [,height=@var{height}]] [[,cols=@var{cols}] [,rows=@var{rows}]] 12297273a2dbSMatthew Booth 12307273a2dbSMatthew BoothConnect to a QEMU text console. @option{vc} may optionally be given a specific 12317273a2dbSMatthew Boothsize. 12327273a2dbSMatthew Booth 12337273a2dbSMatthew Booth@option{width} and @option{height} specify the width and height respectively of 12347273a2dbSMatthew Booththe console, in pixels. 12357273a2dbSMatthew Booth 12367273a2dbSMatthew Booth@option{cols} and @option{rows} specify that the console be sized to fit a text 12377273a2dbSMatthew Boothconsole with the given dimensions. 12387273a2dbSMatthew Booth 12397273a2dbSMatthew Booth@item -chardev file ,id=@var{id} ,path=@var{path} 12407273a2dbSMatthew Booth 12417273a2dbSMatthew BoothLog all traffic received from the guest to a file. 12427273a2dbSMatthew Booth 12437273a2dbSMatthew Booth@option{path} specifies the path of the file to be opened. This file will be 12447273a2dbSMatthew Boothcreated if it does not already exist, and overwritten if it does. @option{path} 12457273a2dbSMatthew Boothis required. 12467273a2dbSMatthew Booth 12477273a2dbSMatthew Booth@item -chardev pipe ,id=@var{id} ,path=@var{path} 12487273a2dbSMatthew Booth 12497273a2dbSMatthew BoothCreate a two-way connection to the guest. The behaviour differs slightly between 12507273a2dbSMatthew BoothWindows hosts and other hosts: 12517273a2dbSMatthew Booth 12527273a2dbSMatthew BoothOn Windows, a single duplex pipe will be created at 12537273a2dbSMatthew Booth@file{\\.pipe\@option{path}}. 12547273a2dbSMatthew Booth 12557273a2dbSMatthew BoothOn other hosts, 2 pipes will be created called @file{@option{path}.in} and 12567273a2dbSMatthew Booth@file{@option{path}.out}. Data written to @file{@option{path}.in} will be 12577273a2dbSMatthew Boothreceived by the guest. Data written by the guest can be read from 12587273a2dbSMatthew Booth@file{@option{path}.out}. QEMU will not create these fifos, and requires them to 12597273a2dbSMatthew Boothbe present. 12607273a2dbSMatthew Booth 12617273a2dbSMatthew Booth@option{path} forms part of the pipe path as described above. @option{path} is 12627273a2dbSMatthew Boothrequired. 12637273a2dbSMatthew Booth 12647273a2dbSMatthew Booth@item -chardev console ,id=@var{id} 12657273a2dbSMatthew Booth 12667273a2dbSMatthew BoothSend traffic from the guest to QEMU's standard output. @option{console} does not 12677273a2dbSMatthew Boothtake any options. 12687273a2dbSMatthew Booth 12697273a2dbSMatthew Booth@option{console} is only available on Windows hosts. 12707273a2dbSMatthew Booth 12717273a2dbSMatthew Booth@item -chardev serial ,id=@var{id} ,path=@option{path} 12727273a2dbSMatthew Booth 12737273a2dbSMatthew BoothSend traffic from the guest to a serial device on the host. 12747273a2dbSMatthew Booth 12757273a2dbSMatthew Booth@option{serial} is 12767273a2dbSMatthew Boothonly available on Windows hosts. 12777273a2dbSMatthew Booth 12787273a2dbSMatthew Booth@option{path} specifies the name of the serial device to open. 12797273a2dbSMatthew Booth 12807273a2dbSMatthew Booth@item -chardev pty ,id=@var{id} 12817273a2dbSMatthew Booth 12827273a2dbSMatthew BoothCreate a new pseudo-terminal on the host and connect to it. @option{pty} does 12837273a2dbSMatthew Boothnot take any options. 12847273a2dbSMatthew Booth 12857273a2dbSMatthew Booth@option{pty} is not available on Windows hosts. 12867273a2dbSMatthew Booth 12877273a2dbSMatthew Booth@item -chardev stdio ,id=@var{id} 12887273a2dbSMatthew BoothConnect to standard input and standard output of the qemu process. 12897273a2dbSMatthew Booth@option{stdio} does not take any options. @option{stdio} is not available on 12907273a2dbSMatthew BoothWindows hosts. 12917273a2dbSMatthew Booth 12927273a2dbSMatthew Booth@item -chardev braille ,id=@var{id} 12937273a2dbSMatthew Booth 12947273a2dbSMatthew BoothConnect to a local BrlAPI server. @option{braille} does not take any options. 12957273a2dbSMatthew Booth 12967273a2dbSMatthew Booth@item -chardev tty ,id=@var{id} ,path=@var{path} 12977273a2dbSMatthew Booth 12987273a2dbSMatthew BoothConnect to a local tty device. 12997273a2dbSMatthew Booth 13007273a2dbSMatthew Booth@option{tty} is only available on Linux, Sun, FreeBSD, NetBSD, OpenBSD and 13017273a2dbSMatthew BoothDragonFlyBSD hosts. 13027273a2dbSMatthew Booth 13037273a2dbSMatthew Booth@option{path} specifies the path to the tty. @option{path} is required. 13047273a2dbSMatthew Booth 13057273a2dbSMatthew Booth@item -chardev parport ,id=@var{id} ,path=@var{path} 13067273a2dbSMatthew Booth 13077273a2dbSMatthew Booth@option{parport} is only available on Linux, FreeBSD and DragonFlyBSD hosts. 13087273a2dbSMatthew Booth 13097273a2dbSMatthew BoothConnect to a local parallel port. 13107273a2dbSMatthew Booth 13117273a2dbSMatthew Booth@option{path} specifies the path to the parallel port device. @option{path} is 13127273a2dbSMatthew Boothrequired. 13137273a2dbSMatthew Booth 13147273a2dbSMatthew Booth@end table 13157273a2dbSMatthew BoothETEXI 13167273a2dbSMatthew Booth 13177273a2dbSMatthew BoothDEFHEADING() 13187273a2dbSMatthew Booth 13197273a2dbSMatthew BoothDEFHEADING(Bluetooth(R) options:) 13207273a2dbSMatthew Booth 13215824d651Sblueswir1DEF("bt", HAS_ARG, QEMU_OPTION_bt, \ 13225824d651Sblueswir1 "-bt hci,null dumb bluetooth HCI - doesn't respond to commands\n" \ 13235824d651Sblueswir1 "-bt hci,host[:id]\n" \ 13245824d651Sblueswir1 " use host's HCI with the given name\n" \ 13255824d651Sblueswir1 "-bt hci[,vlan=n]\n" \ 13265824d651Sblueswir1 " emulate a standard HCI in virtual scatternet 'n'\n" \ 13275824d651Sblueswir1 "-bt vhci[,vlan=n]\n" \ 13285824d651Sblueswir1 " add host computer to virtual scatternet 'n' using VHCI\n" \ 13295824d651Sblueswir1 "-bt device:dev[,vlan=n]\n" \ 13305824d651Sblueswir1 " emulate a bluetooth device 'dev' in scatternet 'n'\n") 13315824d651Sblueswir1STEXI 13325824d651Sblueswir1@table @option 13335824d651Sblueswir1 13345824d651Sblueswir1@item -bt hci[...] 13355824d651Sblueswir1Defines the function of the corresponding Bluetooth HCI. -bt options 13365824d651Sblueswir1are matched with the HCIs present in the chosen machine type. For 13375824d651Sblueswir1example when emulating a machine with only one HCI built into it, only 13385824d651Sblueswir1the first @code{-bt hci[...]} option is valid and defines the HCI's 13395824d651Sblueswir1logic. The Transport Layer is decided by the machine type. Currently 13405824d651Sblueswir1the machines @code{n800} and @code{n810} have one HCI and all other 13415824d651Sblueswir1machines have none. 13425824d651Sblueswir1 13435824d651Sblueswir1@anchor{bt-hcis} 13445824d651Sblueswir1The following three types are recognized: 13455824d651Sblueswir1 1346b3f046c2SKevin Wolf@table @option 13475824d651Sblueswir1@item -bt hci,null 13485824d651Sblueswir1(default) The corresponding Bluetooth HCI assumes no internal logic 13495824d651Sblueswir1and will not respond to any HCI commands or emit events. 13505824d651Sblueswir1 13515824d651Sblueswir1@item -bt hci,host[:@var{id}] 13525824d651Sblueswir1(@code{bluez} only) The corresponding HCI passes commands / events 13535824d651Sblueswir1to / from the physical HCI identified by the name @var{id} (default: 13545824d651Sblueswir1@code{hci0}) on the computer running QEMU. Only available on @code{bluez} 13555824d651Sblueswir1capable systems like Linux. 13565824d651Sblueswir1 13575824d651Sblueswir1@item -bt hci[,vlan=@var{n}] 13585824d651Sblueswir1Add a virtual, standard HCI that will participate in the Bluetooth 13595824d651Sblueswir1scatternet @var{n} (default @code{0}). Similarly to @option{-net} 13605824d651Sblueswir1VLANs, devices inside a bluetooth network @var{n} can only communicate 13615824d651Sblueswir1with other devices in the same network (scatternet). 13625824d651Sblueswir1@end table 13635824d651Sblueswir1 13645824d651Sblueswir1@item -bt vhci[,vlan=@var{n}] 13655824d651Sblueswir1(Linux-host only) Create a HCI in scatternet @var{n} (default 0) attached 13665824d651Sblueswir1to the host bluetooth stack instead of to the emulated target. This 13675824d651Sblueswir1allows the host and target machines to participate in a common scatternet 13685824d651Sblueswir1and communicate. Requires the Linux @code{vhci} driver installed. Can 13695824d651Sblueswir1be used as following: 13705824d651Sblueswir1 13715824d651Sblueswir1@example 13725824d651Sblueswir1qemu [...OPTIONS...] -bt hci,vlan=5 -bt vhci,vlan=5 13735824d651Sblueswir1@end example 13745824d651Sblueswir1 13755824d651Sblueswir1@item -bt device:@var{dev}[,vlan=@var{n}] 13765824d651Sblueswir1Emulate a bluetooth device @var{dev} and place it in network @var{n} 13775824d651Sblueswir1(default @code{0}). QEMU can only emulate one type of bluetooth devices 13785824d651Sblueswir1currently: 13795824d651Sblueswir1 1380b3f046c2SKevin Wolf@table @option 13815824d651Sblueswir1@item keyboard 13825824d651Sblueswir1Virtual wireless keyboard implementing the HIDP bluetooth profile. 13835824d651Sblueswir1@end table 13845824d651Sblueswir1@end table 13855824d651Sblueswir1ETEXI 13865824d651Sblueswir1 13875824d651Sblueswir1DEFHEADING() 13885824d651Sblueswir1 13897677f05dSAlexander GrafDEFHEADING(Linux/Multiboot boot specific:) 13905824d651Sblueswir1STEXI 13917677f05dSAlexander Graf 13927677f05dSAlexander GrafWhen using these options, you can use a given Linux or Multiboot 13937677f05dSAlexander Grafkernel without installing it in the disk image. It can be useful 13945824d651Sblueswir1for easier testing of various kernels. 13955824d651Sblueswir1 13965824d651Sblueswir1@table @option 13975824d651Sblueswir1ETEXI 13985824d651Sblueswir1 13995824d651Sblueswir1DEF("kernel", HAS_ARG, QEMU_OPTION_kernel, \ 14005824d651Sblueswir1 "-kernel bzImage use 'bzImage' as kernel image\n") 14015824d651Sblueswir1STEXI 14025824d651Sblueswir1@item -kernel @var{bzImage} 14037677f05dSAlexander GrafUse @var{bzImage} as kernel image. The kernel can be either a Linux kernel 14047677f05dSAlexander Grafor in multiboot format. 14055824d651Sblueswir1ETEXI 14065824d651Sblueswir1 14075824d651Sblueswir1DEF("append", HAS_ARG, QEMU_OPTION_append, \ 14085824d651Sblueswir1 "-append cmdline use 'cmdline' as kernel command line\n") 14095824d651Sblueswir1STEXI 14105824d651Sblueswir1@item -append @var{cmdline} 14115824d651Sblueswir1Use @var{cmdline} as kernel command line 14125824d651Sblueswir1ETEXI 14135824d651Sblueswir1 14145824d651Sblueswir1DEF("initrd", HAS_ARG, QEMU_OPTION_initrd, \ 14155824d651Sblueswir1 "-initrd file use 'file' as initial ram disk\n") 14165824d651Sblueswir1STEXI 14175824d651Sblueswir1@item -initrd @var{file} 14185824d651Sblueswir1Use @var{file} as initial ram disk. 14197677f05dSAlexander Graf 14207677f05dSAlexander Graf@item -initrd "@var{file1} arg=foo,@var{file2}" 14217677f05dSAlexander Graf 14227677f05dSAlexander GrafThis syntax is only available with multiboot. 14237677f05dSAlexander Graf 14247677f05dSAlexander GrafUse @var{file1} and @var{file2} as modules and pass arg=foo as parameter to the 14257677f05dSAlexander Graffirst module. 14265824d651Sblueswir1ETEXI 14275824d651Sblueswir1 14285824d651Sblueswir1STEXI 14295824d651Sblueswir1@end table 14305824d651Sblueswir1ETEXI 14315824d651Sblueswir1 14325824d651Sblueswir1DEFHEADING() 14335824d651Sblueswir1 14345824d651Sblueswir1DEFHEADING(Debug/Expert options:) 14355824d651Sblueswir1 14365824d651Sblueswir1STEXI 14375824d651Sblueswir1@table @option 14385824d651Sblueswir1ETEXI 14395824d651Sblueswir1 14405824d651Sblueswir1DEF("serial", HAS_ARG, QEMU_OPTION_serial, \ 14415824d651Sblueswir1 "-serial dev redirect the serial port to char device 'dev'\n") 14425824d651Sblueswir1STEXI 14435824d651Sblueswir1@item -serial @var{dev} 14445824d651Sblueswir1Redirect the virtual serial port to host character device 14455824d651Sblueswir1@var{dev}. The default device is @code{vc} in graphical mode and 14465824d651Sblueswir1@code{stdio} in non graphical mode. 14475824d651Sblueswir1 14485824d651Sblueswir1This option can be used several times to simulate up to 4 serial 14495824d651Sblueswir1ports. 14505824d651Sblueswir1 14515824d651Sblueswir1Use @code{-serial none} to disable all serial ports. 14525824d651Sblueswir1 14535824d651Sblueswir1Available character devices are: 1454b3f046c2SKevin Wolf@table @option 14554e257e5eSKevin Wolf@item vc[:@var{W}x@var{H}] 14565824d651Sblueswir1Virtual console. Optionally, a width and height can be given in pixel with 14575824d651Sblueswir1@example 14585824d651Sblueswir1vc:800x600 14595824d651Sblueswir1@end example 14605824d651Sblueswir1It is also possible to specify width or height in characters: 14615824d651Sblueswir1@example 14625824d651Sblueswir1vc:80Cx24C 14635824d651Sblueswir1@end example 14645824d651Sblueswir1@item pty 14655824d651Sblueswir1[Linux only] Pseudo TTY (a new PTY is automatically allocated) 14665824d651Sblueswir1@item none 14675824d651Sblueswir1No device is allocated. 14685824d651Sblueswir1@item null 14695824d651Sblueswir1void device 14705824d651Sblueswir1@item /dev/XXX 14715824d651Sblueswir1[Linux only] Use host tty, e.g. @file{/dev/ttyS0}. The host serial port 14725824d651Sblueswir1parameters are set according to the emulated ones. 14735824d651Sblueswir1@item /dev/parport@var{N} 14745824d651Sblueswir1[Linux only, parallel port only] Use host parallel port 14755824d651Sblueswir1@var{N}. Currently SPP and EPP parallel port features can be used. 14765824d651Sblueswir1@item file:@var{filename} 14775824d651Sblueswir1Write output to @var{filename}. No character can be read. 14785824d651Sblueswir1@item stdio 14795824d651Sblueswir1[Unix only] standard input/output 14805824d651Sblueswir1@item pipe:@var{filename} 14815824d651Sblueswir1name pipe @var{filename} 14825824d651Sblueswir1@item COM@var{n} 14835824d651Sblueswir1[Windows only] Use host serial port @var{n} 14845824d651Sblueswir1@item udp:[@var{remote_host}]:@var{remote_port}[@@[@var{src_ip}]:@var{src_port}] 14855824d651Sblueswir1This implements UDP Net Console. 14865824d651Sblueswir1When @var{remote_host} or @var{src_ip} are not specified 14875824d651Sblueswir1they default to @code{0.0.0.0}. 14885824d651Sblueswir1When not using a specified @var{src_port} a random port is automatically chosen. 14895824d651Sblueswir1 14905824d651Sblueswir1If you just want a simple readonly console you can use @code{netcat} or 14915824d651Sblueswir1@code{nc}, by starting qemu with: @code{-serial udp::4555} and nc as: 14925824d651Sblueswir1@code{nc -u -l -p 4555}. Any time qemu writes something to that port it 14935824d651Sblueswir1will appear in the netconsole session. 14945824d651Sblueswir1 14955824d651Sblueswir1If you plan to send characters back via netconsole or you want to stop 14965824d651Sblueswir1and start qemu a lot of times, you should have qemu use the same 14975824d651Sblueswir1source port each time by using something like @code{-serial 14985824d651Sblueswir1udp::4555@@:4556} to qemu. Another approach is to use a patched 14995824d651Sblueswir1version of netcat which can listen to a TCP port and send and receive 15005824d651Sblueswir1characters via udp. If you have a patched version of netcat which 15015824d651Sblueswir1activates telnet remote echo and single char transfer, then you can 15025824d651Sblueswir1use the following options to step up a netcat redirector to allow 15035824d651Sblueswir1telnet on port 5555 to access the qemu port. 15045824d651Sblueswir1@table @code 15055824d651Sblueswir1@item Qemu Options: 15065824d651Sblueswir1-serial udp::4555@@:4556 15075824d651Sblueswir1@item netcat options: 15085824d651Sblueswir1-u -P 4555 -L 0.0.0.0:4556 -t -p 5555 -I -T 15095824d651Sblueswir1@item telnet options: 15105824d651Sblueswir1localhost 5555 15115824d651Sblueswir1@end table 15125824d651Sblueswir1 15135824d651Sblueswir1@item tcp:[@var{host}]:@var{port}[,@var{server}][,nowait][,nodelay] 15145824d651Sblueswir1The TCP Net Console has two modes of operation. It can send the serial 15155824d651Sblueswir1I/O to a location or wait for a connection from a location. By default 15165824d651Sblueswir1the TCP Net Console is sent to @var{host} at the @var{port}. If you use 15175824d651Sblueswir1the @var{server} option QEMU will wait for a client socket application 15185824d651Sblueswir1to connect to the port before continuing, unless the @code{nowait} 15195824d651Sblueswir1option was specified. The @code{nodelay} option disables the Nagle buffering 15205824d651Sblueswir1algorithm. If @var{host} is omitted, 0.0.0.0 is assumed. Only 15215824d651Sblueswir1one TCP connection at a time is accepted. You can use @code{telnet} to 15225824d651Sblueswir1connect to the corresponding character device. 15235824d651Sblueswir1@table @code 15245824d651Sblueswir1@item Example to send tcp console to 192.168.0.2 port 4444 15255824d651Sblueswir1-serial tcp:192.168.0.2:4444 15265824d651Sblueswir1@item Example to listen and wait on port 4444 for connection 15275824d651Sblueswir1-serial tcp::4444,server 15285824d651Sblueswir1@item Example to not wait and listen on ip 192.168.0.100 port 4444 15295824d651Sblueswir1-serial tcp:192.168.0.100:4444,server,nowait 15305824d651Sblueswir1@end table 15315824d651Sblueswir1 15325824d651Sblueswir1@item telnet:@var{host}:@var{port}[,server][,nowait][,nodelay] 15335824d651Sblueswir1The telnet protocol is used instead of raw tcp sockets. The options 15345824d651Sblueswir1work the same as if you had specified @code{-serial tcp}. The 15355824d651Sblueswir1difference is that the port acts like a telnet server or client using 15365824d651Sblueswir1telnet option negotiation. This will also allow you to send the 15375824d651Sblueswir1MAGIC_SYSRQ sequence if you use a telnet that supports sending the break 15385824d651Sblueswir1sequence. Typically in unix telnet you do it with Control-] and then 15395824d651Sblueswir1type "send break" followed by pressing the enter key. 15405824d651Sblueswir1 15415824d651Sblueswir1@item unix:@var{path}[,server][,nowait] 15425824d651Sblueswir1A unix domain socket is used instead of a tcp socket. The option works the 15435824d651Sblueswir1same as if you had specified @code{-serial tcp} except the unix domain socket 15445824d651Sblueswir1@var{path} is used for connections. 15455824d651Sblueswir1 15465824d651Sblueswir1@item mon:@var{dev_string} 15475824d651Sblueswir1This is a special option to allow the monitor to be multiplexed onto 15485824d651Sblueswir1another serial port. The monitor is accessed with key sequence of 15495824d651Sblueswir1@key{Control-a} and then pressing @key{c}. See monitor access 15505824d651Sblueswir1@ref{pcsys_keys} in the -nographic section for more keys. 15515824d651Sblueswir1@var{dev_string} should be any one of the serial devices specified 15525824d651Sblueswir1above. An example to multiplex the monitor onto a telnet server 15535824d651Sblueswir1listening on port 4444 would be: 15545824d651Sblueswir1@table @code 15555824d651Sblueswir1@item -serial mon:telnet::4444,server,nowait 15565824d651Sblueswir1@end table 15575824d651Sblueswir1 15585824d651Sblueswir1@item braille 15595824d651Sblueswir1Braille device. This will use BrlAPI to display the braille output on a real 15605824d651Sblueswir1or fake device. 15615824d651Sblueswir1 1562be8b28a9SKevin Wolf@item msmouse 1563be8b28a9SKevin WolfThree button serial mouse. Configure the guest to use Microsoft protocol. 15645824d651Sblueswir1@end table 15655824d651Sblueswir1ETEXI 15665824d651Sblueswir1 15675824d651Sblueswir1DEF("parallel", HAS_ARG, QEMU_OPTION_parallel, \ 15685824d651Sblueswir1 "-parallel dev redirect the parallel port to char device 'dev'\n") 15695824d651Sblueswir1STEXI 15705824d651Sblueswir1@item -parallel @var{dev} 15715824d651Sblueswir1Redirect the virtual parallel port to host device @var{dev} (same 15725824d651Sblueswir1devices as the serial port). On Linux hosts, @file{/dev/parportN} can 15735824d651Sblueswir1be used to use hardware devices connected on the corresponding host 15745824d651Sblueswir1parallel port. 15755824d651Sblueswir1 15765824d651Sblueswir1This option can be used several times to simulate up to 3 parallel 15775824d651Sblueswir1ports. 15785824d651Sblueswir1 15795824d651Sblueswir1Use @code{-parallel none} to disable all parallel ports. 15805824d651Sblueswir1ETEXI 15815824d651Sblueswir1 15825824d651Sblueswir1DEF("monitor", HAS_ARG, QEMU_OPTION_monitor, \ 1583*4e307fc8SGerd Hoffmann "-monitor dev redirect the monitor to char device 'dev'\n") 15845824d651Sblueswir1STEXI 1585*4e307fc8SGerd Hoffmann@item -monitor @var{dev} 15865824d651Sblueswir1Redirect the monitor to host device @var{dev} (same devices as the 15875824d651Sblueswir1serial port). 15885824d651Sblueswir1The default device is @code{vc} in graphical mode and @code{stdio} in 15895824d651Sblueswir1non graphical mode. 15905824d651Sblueswir1ETEXI 15915824d651Sblueswir1 15925824d651Sblueswir1DEF("pidfile", HAS_ARG, QEMU_OPTION_pidfile, \ 15935824d651Sblueswir1 "-pidfile file write PID to 'file'\n") 15945824d651Sblueswir1STEXI 15955824d651Sblueswir1@item -pidfile @var{file} 15965824d651Sblueswir1Store the QEMU process PID in @var{file}. It is useful if you launch QEMU 15975824d651Sblueswir1from a script. 15985824d651Sblueswir1ETEXI 15995824d651Sblueswir1 16001b530a6dSaurel32DEF("singlestep", 0, QEMU_OPTION_singlestep, \ 16011b530a6dSaurel32 "-singlestep always run in singlestep mode\n") 16021b530a6dSaurel32STEXI 16031b530a6dSaurel32@item -singlestep 16041b530a6dSaurel32Run the emulation in single step mode. 16051b530a6dSaurel32ETEXI 16061b530a6dSaurel32 16075824d651Sblueswir1DEF("S", 0, QEMU_OPTION_S, \ 16085824d651Sblueswir1 "-S freeze CPU at startup (use 'c' to start execution)\n") 16095824d651Sblueswir1STEXI 16105824d651Sblueswir1@item -S 16115824d651Sblueswir1Do not start CPU at startup (you must type 'c' in the monitor). 16125824d651Sblueswir1ETEXI 16135824d651Sblueswir1 161459030a8cSaliguoriDEF("gdb", HAS_ARG, QEMU_OPTION_gdb, \ 161559030a8cSaliguori "-gdb dev wait for gdb connection on 'dev'\n") 16165824d651Sblueswir1STEXI 161759030a8cSaliguori@item -gdb @var{dev} 161859030a8cSaliguoriWait for gdb connection on device @var{dev} (@pxref{gdb_usage}). Typical 161959030a8cSaliguoriconnections will likely be TCP-based, but also UDP, pseudo TTY, or even 162059030a8cSaliguoristdio are reasonable use case. The latter is allowing to start qemu from 162159030a8cSaliguoriwithin gdb and establish the connection via a pipe: 162259030a8cSaliguori@example 162359030a8cSaliguori(gdb) target remote | exec qemu -gdb stdio ... 162459030a8cSaliguori@end example 16255824d651Sblueswir1ETEXI 16265824d651Sblueswir1 162759030a8cSaliguoriDEF("s", 0, QEMU_OPTION_s, \ 162859030a8cSaliguori "-s shorthand for -gdb tcp::%s\n") 16295824d651Sblueswir1STEXI 163059030a8cSaliguori@item -s 163159030a8cSaliguoriShorthand for -gdb tcp::1234, i.e. open a gdbserver on TCP port 1234 163259030a8cSaliguori(@pxref{gdb_usage}). 16335824d651Sblueswir1ETEXI 16345824d651Sblueswir1 16355824d651Sblueswir1DEF("d", HAS_ARG, QEMU_OPTION_d, \ 16365824d651Sblueswir1 "-d item1,... output log to %s (use -d ? for a list of log items)\n") 16375824d651Sblueswir1STEXI 16385824d651Sblueswir1@item -d 16395824d651Sblueswir1Output log in /tmp/qemu.log 16405824d651Sblueswir1ETEXI 16415824d651Sblueswir1 16425824d651Sblueswir1DEF("hdachs", HAS_ARG, QEMU_OPTION_hdachs, \ 16435824d651Sblueswir1 "-hdachs c,h,s[,t]\n" \ 16445824d651Sblueswir1 " force hard disk 0 physical geometry and the optional BIOS\n" \ 16455824d651Sblueswir1 " translation (t=none or lba) (usually qemu can guess them)\n") 16465824d651Sblueswir1STEXI 16475824d651Sblueswir1@item -hdachs @var{c},@var{h},@var{s},[,@var{t}] 16485824d651Sblueswir1Force hard disk 0 physical geometry (1 <= @var{c} <= 16383, 1 <= 16495824d651Sblueswir1@var{h} <= 16, 1 <= @var{s} <= 63) and optionally force the BIOS 16505824d651Sblueswir1translation mode (@var{t}=none, lba or auto). Usually QEMU can guess 16515824d651Sblueswir1all those parameters. This option is useful for old MS-DOS disk 16525824d651Sblueswir1images. 16535824d651Sblueswir1ETEXI 16545824d651Sblueswir1 16555824d651Sblueswir1DEF("L", HAS_ARG, QEMU_OPTION_L, \ 16565824d651Sblueswir1 "-L path set the directory for the BIOS, VGA BIOS and keymaps\n") 16575824d651Sblueswir1STEXI 16585824d651Sblueswir1@item -L @var{path} 16595824d651Sblueswir1Set the directory for the BIOS, VGA BIOS and keymaps. 16605824d651Sblueswir1ETEXI 16615824d651Sblueswir1 16625824d651Sblueswir1DEF("bios", HAS_ARG, QEMU_OPTION_bios, \ 16635824d651Sblueswir1 "-bios file set the filename for the BIOS\n") 16645824d651Sblueswir1STEXI 16655824d651Sblueswir1@item -bios @var{file} 16665824d651Sblueswir1Set the filename for the BIOS. 16675824d651Sblueswir1ETEXI 16685824d651Sblueswir1 16695824d651Sblueswir1#ifdef CONFIG_KVM 16705824d651Sblueswir1DEF("enable-kvm", 0, QEMU_OPTION_enable_kvm, \ 16715824d651Sblueswir1 "-enable-kvm enable KVM full virtualization support\n") 16725824d651Sblueswir1#endif 16735824d651Sblueswir1STEXI 16745824d651Sblueswir1@item -enable-kvm 16755824d651Sblueswir1Enable KVM full virtualization support. This option is only available 16765824d651Sblueswir1if KVM support is enabled when compiling. 16775824d651Sblueswir1ETEXI 16785824d651Sblueswir1 1679e37630caSaliguori#ifdef CONFIG_XEN 1680e37630caSaliguoriDEF("xen-domid", HAS_ARG, QEMU_OPTION_xen_domid, 1681e37630caSaliguori "-xen-domid id specify xen guest domain id\n") 1682e37630caSaliguoriDEF("xen-create", 0, QEMU_OPTION_xen_create, 1683e37630caSaliguori "-xen-create create domain using xen hypercalls, bypassing xend\n" 1684e37630caSaliguori " warning: should not be used when xend is in use\n") 1685e37630caSaliguoriDEF("xen-attach", 0, QEMU_OPTION_xen_attach, 1686e37630caSaliguori "-xen-attach attach to existing xen domain\n" 1687e37630caSaliguori " xend will use this when starting qemu\n") 1688e37630caSaliguori#endif 1689e37630caSaliguori 16905824d651Sblueswir1DEF("no-reboot", 0, QEMU_OPTION_no_reboot, \ 16915824d651Sblueswir1 "-no-reboot exit instead of rebooting\n") 16925824d651Sblueswir1STEXI 16935824d651Sblueswir1@item -no-reboot 16945824d651Sblueswir1Exit instead of rebooting. 16955824d651Sblueswir1ETEXI 16965824d651Sblueswir1 16975824d651Sblueswir1DEF("no-shutdown", 0, QEMU_OPTION_no_shutdown, \ 16985824d651Sblueswir1 "-no-shutdown stop before shutdown\n") 16995824d651Sblueswir1STEXI 17005824d651Sblueswir1@item -no-shutdown 17015824d651Sblueswir1Don't exit QEMU on guest shutdown, but instead only stop the emulation. 17025824d651Sblueswir1This allows for instance switching to monitor to commit changes to the 17035824d651Sblueswir1disk image. 17045824d651Sblueswir1ETEXI 17055824d651Sblueswir1 17065824d651Sblueswir1DEF("loadvm", HAS_ARG, QEMU_OPTION_loadvm, \ 17075824d651Sblueswir1 "-loadvm [tag|id]\n" \ 17085824d651Sblueswir1 " start right away with a saved state (loadvm in monitor)\n") 17095824d651Sblueswir1STEXI 17105824d651Sblueswir1@item -loadvm @var{file} 17115824d651Sblueswir1Start right away with a saved state (@code{loadvm} in monitor) 17125824d651Sblueswir1ETEXI 17135824d651Sblueswir1 17145824d651Sblueswir1#ifndef _WIN32 17155824d651Sblueswir1DEF("daemonize", 0, QEMU_OPTION_daemonize, \ 17165824d651Sblueswir1 "-daemonize daemonize QEMU after initializing\n") 17175824d651Sblueswir1#endif 17185824d651Sblueswir1STEXI 17195824d651Sblueswir1@item -daemonize 17205824d651Sblueswir1Daemonize the QEMU process after initialization. QEMU will not detach from 17215824d651Sblueswir1standard IO until it is ready to receive connections on any of its devices. 17225824d651Sblueswir1This option is a useful way for external programs to launch QEMU without having 17235824d651Sblueswir1to cope with initialization race conditions. 17245824d651Sblueswir1ETEXI 17255824d651Sblueswir1 17265824d651Sblueswir1DEF("option-rom", HAS_ARG, QEMU_OPTION_option_rom, \ 17275824d651Sblueswir1 "-option-rom rom load a file, rom, into the option ROM space\n") 17285824d651Sblueswir1STEXI 17295824d651Sblueswir1@item -option-rom @var{file} 17305824d651Sblueswir1Load the contents of @var{file} as an option ROM. 17315824d651Sblueswir1This option is useful to load things like EtherBoot. 17325824d651Sblueswir1ETEXI 17335824d651Sblueswir1 17345824d651Sblueswir1DEF("clock", HAS_ARG, QEMU_OPTION_clock, \ 17355824d651Sblueswir1 "-clock force the use of the given methods for timer alarm.\n" \ 17365824d651Sblueswir1 " To see what timers are available use -clock ?\n") 17375824d651Sblueswir1STEXI 17385824d651Sblueswir1@item -clock @var{method} 17395824d651Sblueswir1Force the use of the given methods for timer alarm. To see what timers 17405824d651Sblueswir1are available use -clock ?. 17415824d651Sblueswir1ETEXI 17425824d651Sblueswir1 17431ed2fc1fSJan KiszkaHXCOMM Options deprecated by -rtc 17441ed2fc1fSJan KiszkaDEF("localtime", 0, QEMU_OPTION_localtime, "") 17451ed2fc1fSJan KiszkaDEF("startdate", HAS_ARG, QEMU_OPTION_startdate, "") 17465824d651Sblueswir1 17471ed2fc1fSJan Kiszka#ifdef TARGET_I386 17481ed2fc1fSJan KiszkaDEF("rtc", HAS_ARG, QEMU_OPTION_rtc, \ 17496875204cSJan Kiszka "-rtc [base=utc|localtime|date][,clock=host|vm][,driftfix=none|slew]\n" \ 17506875204cSJan Kiszka " set the RTC base and clock, enable drift fix for clock ticks\n") 17511ed2fc1fSJan Kiszka#else 17521ed2fc1fSJan KiszkaDEF("rtc", HAS_ARG, QEMU_OPTION_rtc, \ 17536875204cSJan Kiszka "-rtc [base=utc|localtime|date][,clock=host|vm]\n" \ 17541ed2fc1fSJan Kiszka " set the RTC base and clock\n") 17551ed2fc1fSJan Kiszka#endif 17561ed2fc1fSJan Kiszka 17575824d651Sblueswir1STEXI 17585824d651Sblueswir1 17596875204cSJan Kiszka@item -rtc [base=utc|localtime|@var{date}][,clock=host|vm][,driftfix=none|slew] 17601ed2fc1fSJan KiszkaSpecify @option{base} as @code{utc} or @code{localtime} to let the RTC start at the current 17611ed2fc1fSJan KiszkaUTC or local time, respectively. @code{localtime} is required for correct date in 17621ed2fc1fSJan KiszkaMS-DOS or Windows. To start at a specific point in time, provide @var{date} in the 17631ed2fc1fSJan Kiszkaformat @code{2006-06-17T16:01:21} or @code{2006-06-17}. The default base is UTC. 17641ed2fc1fSJan Kiszka 17656875204cSJan KiszkaBy default the RTC is driven by the host system time. This allows to use the 17666875204cSJan KiszkaRTC as accurate reference clock inside the guest, specifically if the host 17676875204cSJan Kiszkatime is smoothly following an accurate external reference clock, e.g. via NTP. 17686875204cSJan KiszkaIf you want to isolate the guest time from the host, even prevent it from 17696875204cSJan Kiszkaprogressing during suspension, you can set @option{clock} to @code{vm} instead. 17706875204cSJan Kiszka 17711ed2fc1fSJan KiszkaEnable @option{driftfix} (i386 targets only) if you experience time drift problems, 17721ed2fc1fSJan Kiszkaspecifically with Windows' ACPI HAL. This option will try to figure out how 17731ed2fc1fSJan Kiszkamany timer interrupts were not processed by the Windows guest and will 17741ed2fc1fSJan Kiszkare-inject them. 17755824d651Sblueswir1ETEXI 17765824d651Sblueswir1 17775824d651Sblueswir1DEF("icount", HAS_ARG, QEMU_OPTION_icount, \ 17785824d651Sblueswir1 "-icount [N|auto]\n" \ 1779bc14ca24Saliguori " enable virtual instruction counter with 2^N clock ticks per\n" \ 1780bc14ca24Saliguori " instruction\n") 17815824d651Sblueswir1STEXI 17824e257e5eSKevin Wolf@item -icount [@var{N}|auto] 17835824d651Sblueswir1Enable virtual instruction counter. The virtual cpu will execute one 17844e257e5eSKevin Wolfinstruction every 2^@var{N} ns of virtual time. If @code{auto} is specified 17855824d651Sblueswir1then the virtual cpu speed will be automatically adjusted to keep virtual 17865824d651Sblueswir1time within a few seconds of real time. 17875824d651Sblueswir1 17885824d651Sblueswir1Note that while this option can give deterministic behavior, it does not 17895824d651Sblueswir1provide cycle accurate emulation. Modern CPUs contain superscalar out of 17905824d651Sblueswir1order cores with complex cache hierarchies. The number of instructions 17915824d651Sblueswir1executed often has little or no correlation with actual performance. 17925824d651Sblueswir1ETEXI 17935824d651Sblueswir1 17949dd986ccSRichard W.M. JonesDEF("watchdog", HAS_ARG, QEMU_OPTION_watchdog, \ 17959dd986ccSRichard W.M. Jones "-watchdog i6300esb|ib700\n" \ 17969dd986ccSRichard W.M. Jones " enable virtual hardware watchdog [default=none]\n") 17979dd986ccSRichard W.M. JonesSTEXI 17989dd986ccSRichard W.M. Jones@item -watchdog @var{model} 17999dd986ccSRichard W.M. JonesCreate a virtual hardware watchdog device. Once enabled (by a guest 18009dd986ccSRichard W.M. Jonesaction), the watchdog must be periodically polled by an agent inside 18019dd986ccSRichard W.M. Jonesthe guest or else the guest will be restarted. 18029dd986ccSRichard W.M. Jones 18039dd986ccSRichard W.M. JonesThe @var{model} is the model of hardware watchdog to emulate. Choices 18049dd986ccSRichard W.M. Jonesfor model are: @code{ib700} (iBASE 700) which is a very simple ISA 18059dd986ccSRichard W.M. Joneswatchdog with a single timer, or @code{i6300esb} (Intel 6300ESB I/O 18069dd986ccSRichard W.M. Jonescontroller hub) which is a much more featureful PCI-based dual-timer 18079dd986ccSRichard W.M. Joneswatchdog. Choose a model for which your guest has drivers. 18089dd986ccSRichard W.M. Jones 18099dd986ccSRichard W.M. JonesUse @code{-watchdog ?} to list available hardware models. Only one 18109dd986ccSRichard W.M. Joneswatchdog can be enabled for a guest. 18119dd986ccSRichard W.M. JonesETEXI 18129dd986ccSRichard W.M. Jones 18139dd986ccSRichard W.M. JonesDEF("watchdog-action", HAS_ARG, QEMU_OPTION_watchdog_action, \ 18149dd986ccSRichard W.M. Jones "-watchdog-action reset|shutdown|poweroff|pause|debug|none\n" \ 18159dd986ccSRichard W.M. Jones " action when watchdog fires [default=reset]\n") 18169dd986ccSRichard W.M. JonesSTEXI 18179dd986ccSRichard W.M. Jones@item -watchdog-action @var{action} 18189dd986ccSRichard W.M. Jones 18199dd986ccSRichard W.M. JonesThe @var{action} controls what QEMU will do when the watchdog timer 18209dd986ccSRichard W.M. Jonesexpires. 18219dd986ccSRichard W.M. JonesThe default is 18229dd986ccSRichard W.M. Jones@code{reset} (forcefully reset the guest). 18239dd986ccSRichard W.M. JonesOther possible actions are: 18249dd986ccSRichard W.M. Jones@code{shutdown} (attempt to gracefully shutdown the guest), 18259dd986ccSRichard W.M. Jones@code{poweroff} (forcefully poweroff the guest), 18269dd986ccSRichard W.M. Jones@code{pause} (pause the guest), 18279dd986ccSRichard W.M. Jones@code{debug} (print a debug message and continue), or 18289dd986ccSRichard W.M. Jones@code{none} (do nothing). 18299dd986ccSRichard W.M. Jones 18309dd986ccSRichard W.M. JonesNote that the @code{shutdown} action requires that the guest responds 18319dd986ccSRichard W.M. Jonesto ACPI signals, which it may not be able to do in the sort of 18329dd986ccSRichard W.M. Jonessituations where the watchdog would have expired, and thus 18339dd986ccSRichard W.M. Jones@code{-watchdog-action shutdown} is not recommended for production use. 18349dd986ccSRichard W.M. Jones 18359dd986ccSRichard W.M. JonesExamples: 18369dd986ccSRichard W.M. Jones 18379dd986ccSRichard W.M. Jones@table @code 18389dd986ccSRichard W.M. Jones@item -watchdog i6300esb -watchdog-action pause 18399dd986ccSRichard W.M. Jones@item -watchdog ib700 18409dd986ccSRichard W.M. Jones@end table 18419dd986ccSRichard W.M. JonesETEXI 18429dd986ccSRichard W.M. Jones 18435824d651Sblueswir1DEF("echr", HAS_ARG, QEMU_OPTION_echr, \ 18445824d651Sblueswir1 "-echr chr set terminal escape character instead of ctrl-a\n") 18455824d651Sblueswir1STEXI 18465824d651Sblueswir1 18474e257e5eSKevin Wolf@item -echr @var{numeric_ascii_value} 18485824d651Sblueswir1Change the escape character used for switching to the monitor when using 18495824d651Sblueswir1monitor and serial sharing. The default is @code{0x01} when using the 18505824d651Sblueswir1@code{-nographic} option. @code{0x01} is equal to pressing 18515824d651Sblueswir1@code{Control-a}. You can select a different character from the ascii 18525824d651Sblueswir1control keys where 1 through 26 map to Control-a through Control-z. For 18535824d651Sblueswir1instance you could use the either of the following to change the escape 18545824d651Sblueswir1character to Control-t. 18555824d651Sblueswir1@table @code 18565824d651Sblueswir1@item -echr 0x14 18575824d651Sblueswir1@item -echr 20 18585824d651Sblueswir1@end table 18595824d651Sblueswir1ETEXI 18605824d651Sblueswir1 18615824d651Sblueswir1DEF("virtioconsole", HAS_ARG, QEMU_OPTION_virtiocon, \ 18625824d651Sblueswir1 "-virtioconsole c\n" \ 18635824d651Sblueswir1 " set virtio console\n") 18645824d651Sblueswir1STEXI 18655824d651Sblueswir1@item -virtioconsole @var{c} 18665824d651Sblueswir1Set virtio console. 18675824d651Sblueswir1ETEXI 18685824d651Sblueswir1 18695824d651Sblueswir1DEF("show-cursor", 0, QEMU_OPTION_show_cursor, \ 18705824d651Sblueswir1 "-show-cursor show cursor\n") 18715824d651Sblueswir1STEXI 18725824d651Sblueswir1ETEXI 18735824d651Sblueswir1 18745824d651Sblueswir1DEF("tb-size", HAS_ARG, QEMU_OPTION_tb_size, \ 18755824d651Sblueswir1 "-tb-size n set TB size\n") 18765824d651Sblueswir1STEXI 18775824d651Sblueswir1ETEXI 18785824d651Sblueswir1 18795824d651Sblueswir1DEF("incoming", HAS_ARG, QEMU_OPTION_incoming, \ 18805824d651Sblueswir1 "-incoming p prepare for incoming migration, listen on port p\n") 18815824d651Sblueswir1STEXI 18825824d651Sblueswir1ETEXI 18835824d651Sblueswir1 18845824d651Sblueswir1#ifndef _WIN32 18855824d651Sblueswir1DEF("chroot", HAS_ARG, QEMU_OPTION_chroot, \ 18865824d651Sblueswir1 "-chroot dir Chroot to dir just before starting the VM.\n") 18875824d651Sblueswir1#endif 18885824d651Sblueswir1STEXI 18894e257e5eSKevin Wolf@item -chroot @var{dir} 18905824d651Sblueswir1Immediately before starting guest execution, chroot to the specified 18915824d651Sblueswir1directory. Especially useful in combination with -runas. 18925824d651Sblueswir1ETEXI 18935824d651Sblueswir1 18945824d651Sblueswir1#ifndef _WIN32 18955824d651Sblueswir1DEF("runas", HAS_ARG, QEMU_OPTION_runas, \ 18965824d651Sblueswir1 "-runas user Change to user id user just before starting the VM.\n") 18975824d651Sblueswir1#endif 18985824d651Sblueswir1STEXI 18994e257e5eSKevin Wolf@item -runas @var{user} 19005824d651Sblueswir1Immediately before starting guest execution, drop root privileges, switching 19015824d651Sblueswir1to the specified user. 19025824d651Sblueswir1ETEXI 19035824d651Sblueswir1 19045824d651Sblueswir1STEXI 19055824d651Sblueswir1@end table 19065824d651Sblueswir1ETEXI 19075824d651Sblueswir1 19085824d651Sblueswir1#if defined(TARGET_SPARC) || defined(TARGET_PPC) 19095824d651Sblueswir1DEF("prom-env", HAS_ARG, QEMU_OPTION_prom_env, 19105824d651Sblueswir1 "-prom-env variable=value\n" 19115824d651Sblueswir1 " set OpenBIOS nvram variables\n") 19125824d651Sblueswir1#endif 19135824d651Sblueswir1#if defined(TARGET_ARM) || defined(TARGET_M68K) 19145824d651Sblueswir1DEF("semihosting", 0, QEMU_OPTION_semihosting, 19155824d651Sblueswir1 "-semihosting semihosting mode\n") 19165824d651Sblueswir1#endif 19175824d651Sblueswir1#if defined(TARGET_ARM) 19185824d651Sblueswir1DEF("old-param", 0, QEMU_OPTION_old_param, 19195824d651Sblueswir1 "-old-param old param mode\n") 19205824d651Sblueswir1#endif 1921715a664aSGerd HoffmannDEF("readconfig", HAS_ARG, QEMU_OPTION_readconfig, 1922715a664aSGerd Hoffmann "-readconfig <file>\n") 1923715a664aSGerd HoffmannDEF("writeconfig", HAS_ARG, QEMU_OPTION_writeconfig, 1924715a664aSGerd Hoffmann "-writeconfig <file>\n" 1925715a664aSGerd Hoffmann " read/write config file") 1926