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 4ad96090aSBlue SwirlHXCOMM DEF(option, HAS_ARG/0, opt_enum, opt_help, arch_mask) is used to 5ad96090aSBlue SwirlHXCOMM construct option structures, enums and help message for specified 6ad96090aSBlue SwirlHXCOMM architectures. 75824d651Sblueswir1HXCOMM HXCOMM can be used for comments, discarded from both texi and C 85824d651Sblueswir1 95824d651Sblueswir1DEFHEADING(Standard options:) 105824d651Sblueswir1STEXI 115824d651Sblueswir1@table @option 125824d651Sblueswir1ETEXI 135824d651Sblueswir1 145824d651Sblueswir1DEF("help", 0, QEMU_OPTION_h, 15ad96090aSBlue Swirl "-h or -help display this help and exit\n", QEMU_ARCH_ALL) 165824d651Sblueswir1STEXI 175824d651Sblueswir1@item -h 186616b2adSStefan Weil@findex -h 195824d651Sblueswir1Display help and exit 205824d651Sblueswir1ETEXI 215824d651Sblueswir1 229bd7e6d9SpbrookDEF("version", 0, QEMU_OPTION_version, 23ad96090aSBlue Swirl "-version display version information and exit\n", QEMU_ARCH_ALL) 249bd7e6d9SpbrookSTEXI 259bd7e6d9Spbrook@item -version 266616b2adSStefan Weil@findex -version 279bd7e6d9SpbrookDisplay version information and exit 289bd7e6d9SpbrookETEXI 299bd7e6d9Spbrook 305824d651Sblueswir1DEF("M", HAS_ARG, QEMU_OPTION_M, 31ad96090aSBlue Swirl "-M machine select emulated machine (-M ? for list)\n", QEMU_ARCH_ALL) 325824d651Sblueswir1STEXI 335824d651Sblueswir1@item -M @var{machine} 346616b2adSStefan Weil@findex -M 355824d651Sblueswir1Select the emulated @var{machine} (@code{-M ?} for list) 365824d651Sblueswir1ETEXI 375824d651Sblueswir1 385824d651Sblueswir1DEF("cpu", HAS_ARG, QEMU_OPTION_cpu, 39ad96090aSBlue Swirl "-cpu cpu select CPU (-cpu ? for list)\n", QEMU_ARCH_ALL) 405824d651Sblueswir1STEXI 415824d651Sblueswir1@item -cpu @var{model} 426616b2adSStefan Weil@findex -cpu 435824d651Sblueswir1Select CPU model (-cpu ? for list and additional feature selection) 445824d651Sblueswir1ETEXI 455824d651Sblueswir1 465824d651Sblueswir1DEF("smp", HAS_ARG, QEMU_OPTION_smp, 4758a04db1SAndre Przywara "-smp n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]\n" 486be68d7eSJes Sorensen " set the number of CPUs to 'n' [default=1]\n" 496be68d7eSJes Sorensen " maxcpus= maximum number of total cpus, including\n" 50ca1a8a06SBruce Rogers " offline CPUs for hotplug, etc\n" 5158a04db1SAndre Przywara " cores= number of CPU cores on one socket\n" 5258a04db1SAndre Przywara " threads= number of threads on one CPU core\n" 53ad96090aSBlue Swirl " sockets= number of discrete sockets in the system\n", 54ad96090aSBlue Swirl QEMU_ARCH_ALL) 555824d651Sblueswir1STEXI 5658a04db1SAndre Przywara@item -smp @var{n}[,cores=@var{cores}][,threads=@var{threads}][,sockets=@var{sockets}][,maxcpus=@var{maxcpus}] 576616b2adSStefan Weil@findex -smp 585824d651Sblueswir1Simulate an SMP system with @var{n} CPUs. On the PC target, up to 255 595824d651Sblueswir1CPUs are supported. On Sparc32 target, Linux limits the number of usable CPUs 605824d651Sblueswir1to 4. 6158a04db1SAndre PrzywaraFor the PC target, the number of @var{cores} per socket, the number 6258a04db1SAndre Przywaraof @var{threads} per cores and the total number of @var{sockets} can be 6358a04db1SAndre Przywaraspecified. Missing values will be computed. If any on the three values is 6458a04db1SAndre Przywaragiven, the total number of CPUs @var{n} can be omitted. @var{maxcpus} 6558a04db1SAndre Przywaraspecifies the maximum number of hotpluggable CPUs. 665824d651Sblueswir1ETEXI 675824d651Sblueswir1 68268a362cSaliguoriDEF("numa", HAS_ARG, QEMU_OPTION_numa, 69ad96090aSBlue Swirl "-numa node[,mem=size][,cpus=cpu[-cpu]][,nodeid=node]\n", QEMU_ARCH_ALL) 70268a362cSaliguoriSTEXI 71268a362cSaliguori@item -numa @var{opts} 726616b2adSStefan Weil@findex -numa 73268a362cSaliguoriSimulate a multi node NUMA system. If mem and cpus are omitted, resources 74268a362cSaliguoriare split equally. 75268a362cSaliguoriETEXI 76268a362cSaliguori 775824d651Sblueswir1DEF("fda", HAS_ARG, QEMU_OPTION_fda, 78ad96090aSBlue Swirl "-fda/-fdb file use 'file' as floppy disk 0/1 image\n", QEMU_ARCH_ALL) 79ad96090aSBlue SwirlDEF("fdb", HAS_ARG, QEMU_OPTION_fdb, "", QEMU_ARCH_ALL) 805824d651Sblueswir1STEXI 815824d651Sblueswir1@item -fda @var{file} 825824d651Sblueswir1@item -fdb @var{file} 836616b2adSStefan Weil@findex -fda 846616b2adSStefan Weil@findex -fdb 855824d651Sblueswir1Use @var{file} as floppy disk 0/1 image (@pxref{disk_images}). You can 865824d651Sblueswir1use the host floppy by using @file{/dev/fd0} as filename (@pxref{host_drives}). 875824d651Sblueswir1ETEXI 885824d651Sblueswir1 895824d651Sblueswir1DEF("hda", HAS_ARG, QEMU_OPTION_hda, 90ad96090aSBlue Swirl "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n", QEMU_ARCH_ALL) 91ad96090aSBlue SwirlDEF("hdb", HAS_ARG, QEMU_OPTION_hdb, "", QEMU_ARCH_ALL) 925824d651Sblueswir1DEF("hdc", HAS_ARG, QEMU_OPTION_hdc, 93ad96090aSBlue Swirl "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n", QEMU_ARCH_ALL) 94ad96090aSBlue SwirlDEF("hdd", HAS_ARG, QEMU_OPTION_hdd, "", QEMU_ARCH_ALL) 955824d651Sblueswir1STEXI 965824d651Sblueswir1@item -hda @var{file} 975824d651Sblueswir1@item -hdb @var{file} 985824d651Sblueswir1@item -hdc @var{file} 995824d651Sblueswir1@item -hdd @var{file} 1006616b2adSStefan Weil@findex -hda 1016616b2adSStefan Weil@findex -hdb 1026616b2adSStefan Weil@findex -hdc 1036616b2adSStefan Weil@findex -hdd 1045824d651Sblueswir1Use @var{file} as hard disk 0, 1, 2 or 3 image (@pxref{disk_images}). 1055824d651Sblueswir1ETEXI 1065824d651Sblueswir1 1075824d651Sblueswir1DEF("cdrom", HAS_ARG, QEMU_OPTION_cdrom, 108ad96090aSBlue Swirl "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n", 109ad96090aSBlue Swirl QEMU_ARCH_ALL) 1105824d651Sblueswir1STEXI 1115824d651Sblueswir1@item -cdrom @var{file} 1126616b2adSStefan Weil@findex -cdrom 1135824d651Sblueswir1Use @var{file} as CD-ROM image (you cannot use @option{-hdc} and 1145824d651Sblueswir1@option{-cdrom} at the same time). You can use the host CD-ROM by 1155824d651Sblueswir1using @file{/dev/cdrom} as filename (@pxref{host_drives}). 1165824d651Sblueswir1ETEXI 1175824d651Sblueswir1 1185824d651Sblueswir1DEF("drive", HAS_ARG, QEMU_OPTION_drive, 1195824d651Sblueswir1 "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n" 1205824d651Sblueswir1 " [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n" 1216c6b6ba2SBruce Rogers " [,cache=writethrough|writeback|none|unsafe][,format=f]\n" 122016f5cf6SAlexander Graf " [,serial=s][,addr=A][,id=name][,aio=threads|native]\n" 123016f5cf6SAlexander Graf " [,readonly=on|off]\n" 124ad96090aSBlue Swirl " use 'file' as a drive image\n", QEMU_ARCH_ALL) 1255824d651Sblueswir1STEXI 1265824d651Sblueswir1@item -drive @var{option}[,@var{option}[,@var{option}[,...]]] 1276616b2adSStefan Weil@findex -drive 1285824d651Sblueswir1 1295824d651Sblueswir1Define a new drive. Valid options are: 1305824d651Sblueswir1 131b3f046c2SKevin Wolf@table @option 1325824d651Sblueswir1@item file=@var{file} 1335824d651Sblueswir1This option defines which disk image (@pxref{disk_images}) to use with 1345824d651Sblueswir1this drive. If the filename contains comma, you must double it 1355824d651Sblueswir1(for instance, "file=my,,file" to use file "my,file"). 1365824d651Sblueswir1@item if=@var{interface} 1375824d651Sblueswir1This option defines on which type on interface the drive is connected. 1385824d651Sblueswir1Available types are: ide, scsi, sd, mtd, floppy, pflash, virtio. 1395824d651Sblueswir1@item bus=@var{bus},unit=@var{unit} 1405824d651Sblueswir1These options define where is connected the drive by defining the bus number and 1415824d651Sblueswir1the unit id. 1425824d651Sblueswir1@item index=@var{index} 1435824d651Sblueswir1This option defines where is connected the drive by using an index in the list 1445824d651Sblueswir1of available connectors of a given interface type. 1455824d651Sblueswir1@item media=@var{media} 1465824d651Sblueswir1This option defines the type of the media: disk or cdrom. 1475824d651Sblueswir1@item cyls=@var{c},heads=@var{h},secs=@var{s}[,trans=@var{t}] 1485824d651Sblueswir1These options have the same definition as they have in @option{-hdachs}. 1495824d651Sblueswir1@item snapshot=@var{snapshot} 1505824d651Sblueswir1@var{snapshot} is "on" or "off" and allows to enable snapshot for given drive (see @option{-snapshot}). 1515824d651Sblueswir1@item cache=@var{cache} 152016f5cf6SAlexander Graf@var{cache} is "none", "writeback", "unsafe", or "writethrough" and controls how the host cache is used to access block data. 1535c6c3a6cSChristoph Hellwig@item aio=@var{aio} 1545c6c3a6cSChristoph Hellwig@var{aio} is "threads", or "native" and selects between pthread based disk I/O and native Linux AIO. 1555824d651Sblueswir1@item format=@var{format} 1565824d651Sblueswir1Specify which disk @var{format} will be used rather than detecting 1575824d651Sblueswir1the format. Can be used to specifiy format=raw to avoid interpreting 1585824d651Sblueswir1an untrusted format header. 1595824d651Sblueswir1@item serial=@var{serial} 1605824d651Sblueswir1This option specifies the serial number to assign to the device. 161c2cc47a4SMarkus Armbruster@item addr=@var{addr} 162c2cc47a4SMarkus ArmbrusterSpecify the controller's PCI address (if=virtio only). 1635824d651Sblueswir1@end table 1645824d651Sblueswir1 1655824d651Sblueswir1By default, writethrough caching is used for all block device. This means that 1665824d651Sblueswir1the host page cache will be used to read and write data but write notification 1675824d651Sblueswir1will be sent to the guest only when the data has been reported as written by 1685824d651Sblueswir1the storage subsystem. 1695824d651Sblueswir1 1705824d651Sblueswir1Writeback caching will report data writes as completed as soon as the data is 1715824d651Sblueswir1present in the host page cache. This is safe as long as you trust your host. 1725824d651Sblueswir1If your host crashes or loses power, then the guest may experience data 173c3177288SAlexander Grafcorruption. 1745824d651Sblueswir1 175c304d317SAurelien JarnoThe host page cache can be avoided entirely with @option{cache=none}. This will 1765824d651Sblueswir1attempt to do disk IO directly to the guests memory. QEMU may still perform 1775824d651Sblueswir1an internal copy of the data. 1785824d651Sblueswir1 1795824d651Sblueswir1Some block drivers perform badly with @option{cache=writethrough}, most notably, 1805824d651Sblueswir1qcow2. If performance is more important than correctness, 1810aa217e4SKevin Wolf@option{cache=writeback} should be used with qcow2. 1825824d651Sblueswir1 183016f5cf6SAlexander GrafIn case you don't care about data integrity over host failures, use 184016f5cf6SAlexander Grafcache=unsafe. This option tells qemu that it never needs to write any data 185016f5cf6SAlexander Grafto the disk but can instead keeps things in cache. If anything goes wrong, 186016f5cf6SAlexander Graflike your host losing power, the disk storage getting disconnected accidently, 187c3177288SAlexander Grafetc. you're image will most probably be rendered unusable. When using 188c3177288SAlexander Grafthe @option{-snapshot} option, unsafe caching is always used. 189016f5cf6SAlexander Graf 1905824d651Sblueswir1Instead of @option{-cdrom} you can use: 1915824d651Sblueswir1@example 1925824d651Sblueswir1qemu -drive file=file,index=2,media=cdrom 1935824d651Sblueswir1@end example 1945824d651Sblueswir1 1955824d651Sblueswir1Instead of @option{-hda}, @option{-hdb}, @option{-hdc}, @option{-hdd}, you can 1965824d651Sblueswir1use: 1975824d651Sblueswir1@example 1985824d651Sblueswir1qemu -drive file=file,index=0,media=disk 1995824d651Sblueswir1qemu -drive file=file,index=1,media=disk 2005824d651Sblueswir1qemu -drive file=file,index=2,media=disk 2015824d651Sblueswir1qemu -drive file=file,index=3,media=disk 2025824d651Sblueswir1@end example 2035824d651Sblueswir1 2045824d651Sblueswir1You can connect a CDROM to the slave of ide0: 2055824d651Sblueswir1@example 2065824d651Sblueswir1qemu -drive file=file,if=ide,index=1,media=cdrom 2075824d651Sblueswir1@end example 2085824d651Sblueswir1 2095824d651Sblueswir1If you don't specify the "file=" argument, you define an empty drive: 2105824d651Sblueswir1@example 2115824d651Sblueswir1qemu -drive if=ide,index=1,media=cdrom 2125824d651Sblueswir1@end example 2135824d651Sblueswir1 2145824d651Sblueswir1You can connect a SCSI disk with unit ID 6 on the bus #0: 2155824d651Sblueswir1@example 2165824d651Sblueswir1qemu -drive file=file,if=scsi,bus=0,unit=6 2175824d651Sblueswir1@end example 2185824d651Sblueswir1 2195824d651Sblueswir1Instead of @option{-fda}, @option{-fdb}, you can use: 2205824d651Sblueswir1@example 2215824d651Sblueswir1qemu -drive file=file,index=0,if=floppy 2225824d651Sblueswir1qemu -drive file=file,index=1,if=floppy 2235824d651Sblueswir1@end example 2245824d651Sblueswir1 2255824d651Sblueswir1By default, @var{interface} is "ide" and @var{index} is automatically 2265824d651Sblueswir1incremented: 2275824d651Sblueswir1@example 2285824d651Sblueswir1qemu -drive file=a -drive file=b" 2295824d651Sblueswir1@end example 2305824d651Sblueswir1is interpreted like: 2315824d651Sblueswir1@example 2325824d651Sblueswir1qemu -hda a -hdb b 2335824d651Sblueswir1@end example 2345824d651Sblueswir1ETEXI 2355824d651Sblueswir1 2366616b2adSStefan WeilDEF("set", HAS_ARG, QEMU_OPTION_set, 2376616b2adSStefan Weil "-set group.id.arg=value\n" 2386616b2adSStefan Weil " set <arg> parameter for item <id> of type <group>\n" 239ad96090aSBlue Swirl " i.e. -set drive.$id.file=/path/to/image\n", QEMU_ARCH_ALL) 2406616b2adSStefan WeilSTEXI 2416616b2adSStefan Weil@item -set 2426616b2adSStefan Weil@findex -set 2436616b2adSStefan WeilTODO 2446616b2adSStefan WeilETEXI 2456616b2adSStefan Weil 2466616b2adSStefan WeilDEF("global", HAS_ARG, QEMU_OPTION_global, 2476616b2adSStefan Weil "-global driver.property=value\n" 248ad96090aSBlue Swirl " set a global default for a driver property\n", 249ad96090aSBlue Swirl QEMU_ARCH_ALL) 2506616b2adSStefan WeilSTEXI 2516616b2adSStefan Weil@item -global 2526616b2adSStefan Weil@findex -global 2536616b2adSStefan WeilTODO 2546616b2adSStefan WeilETEXI 2556616b2adSStefan Weil 2565824d651Sblueswir1DEF("mtdblock", HAS_ARG, QEMU_OPTION_mtdblock, 257ad96090aSBlue Swirl "-mtdblock file use 'file' as on-board Flash memory image\n", 258ad96090aSBlue Swirl QEMU_ARCH_ALL) 2595824d651Sblueswir1STEXI 2604e257e5eSKevin Wolf@item -mtdblock @var{file} 2616616b2adSStefan Weil@findex -mtdblock 2624e257e5eSKevin WolfUse @var{file} as on-board Flash memory image. 2635824d651Sblueswir1ETEXI 2645824d651Sblueswir1 2655824d651Sblueswir1DEF("sd", HAS_ARG, QEMU_OPTION_sd, 266ad96090aSBlue Swirl "-sd file use 'file' as SecureDigital card image\n", QEMU_ARCH_ALL) 2675824d651Sblueswir1STEXI 2684e257e5eSKevin Wolf@item -sd @var{file} 2696616b2adSStefan Weil@findex -sd 2704e257e5eSKevin WolfUse @var{file} as SecureDigital card image. 2715824d651Sblueswir1ETEXI 2725824d651Sblueswir1 2735824d651Sblueswir1DEF("pflash", HAS_ARG, QEMU_OPTION_pflash, 274ad96090aSBlue Swirl "-pflash file use 'file' as a parallel flash image\n", QEMU_ARCH_ALL) 2755824d651Sblueswir1STEXI 2764e257e5eSKevin Wolf@item -pflash @var{file} 2776616b2adSStefan Weil@findex -pflash 2784e257e5eSKevin WolfUse @var{file} as a parallel flash image. 2795824d651Sblueswir1ETEXI 2805824d651Sblueswir1 2815824d651Sblueswir1DEF("boot", HAS_ARG, QEMU_OPTION_boot, 2822221dde5SJan Kiszka "-boot [order=drives][,once=drives][,menu=on|off]\n" 283ad96090aSBlue Swirl " 'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)\n", 284ad96090aSBlue Swirl QEMU_ARCH_ALL) 2855824d651Sblueswir1STEXI 2862221dde5SJan Kiszka@item -boot [order=@var{drives}][,once=@var{drives}][,menu=on|off] 2876616b2adSStefan Weil@findex -boot 2882221dde5SJan KiszkaSpecify boot order @var{drives} as a string of drive letters. Valid 2892221dde5SJan Kiszkadrive letters depend on the target achitecture. The x86 PC uses: a, b 2902221dde5SJan Kiszka(floppy 1 and 2), c (first hard disk), d (first CD-ROM), n-p (Etherboot 2912221dde5SJan Kiszkafrom network adapter 1-4), hard disk boot is the default. To apply a 2922221dde5SJan Kiszkaparticular boot order only on the first startup, specify it via 2932221dde5SJan Kiszka@option{once}. 2942221dde5SJan Kiszka 2952221dde5SJan KiszkaInteractive boot menus/prompts can be enabled via @option{menu=on} as far 2962221dde5SJan Kiszkaas firmware/BIOS supports them. The default is non-interactive boot. 2972221dde5SJan Kiszka 2982221dde5SJan Kiszka@example 2992221dde5SJan Kiszka# try to boot from network first, then from hard disk 3002221dde5SJan Kiszkaqemu -boot order=nc 3012221dde5SJan Kiszka# boot from CD-ROM first, switch back to default order after reboot 3022221dde5SJan Kiszkaqemu -boot once=d 3032221dde5SJan Kiszka@end example 3042221dde5SJan Kiszka 3052221dde5SJan KiszkaNote: The legacy format '-boot @var{drives}' is still supported but its 3062221dde5SJan Kiszkause is discouraged as it may be removed from future versions. 3075824d651Sblueswir1ETEXI 3085824d651Sblueswir1 3095824d651Sblueswir1DEF("snapshot", 0, QEMU_OPTION_snapshot, 310ad96090aSBlue Swirl "-snapshot write to temporary files instead of disk image files\n", 311ad96090aSBlue Swirl QEMU_ARCH_ALL) 3125824d651Sblueswir1STEXI 3135824d651Sblueswir1@item -snapshot 3146616b2adSStefan Weil@findex -snapshot 3155824d651Sblueswir1Write to temporary files instead of disk image files. In this case, 3165824d651Sblueswir1the raw disk image you use is not written back. You can however force 3175824d651Sblueswir1the write back by pressing @key{C-a s} (@pxref{disk_images}). 3185824d651Sblueswir1ETEXI 3195824d651Sblueswir1 3205824d651Sblueswir1DEF("m", HAS_ARG, QEMU_OPTION_m, 321bec7c2d4SPaolo Bonzini "-m megs set virtual RAM size to megs MB [default=" 322ad96090aSBlue Swirl stringify(DEFAULT_RAM_SIZE) "]\n", QEMU_ARCH_ALL) 3235824d651Sblueswir1STEXI 3245824d651Sblueswir1@item -m @var{megs} 3256616b2adSStefan Weil@findex -m 3265824d651Sblueswir1Set virtual RAM size to @var{megs} megabytes. Default is 128 MiB. Optionally, 3275824d651Sblueswir1a suffix of ``M'' or ``G'' can be used to signify a value in megabytes or 3285824d651Sblueswir1gigabytes respectively. 3295824d651Sblueswir1ETEXI 3305824d651Sblueswir1 331c902760fSMarcelo TosattiDEF("mem-path", HAS_ARG, QEMU_OPTION_mempath, 332ad96090aSBlue Swirl "-mem-path FILE provide backing storage for guest RAM\n", QEMU_ARCH_ALL) 333c902760fSMarcelo TosattiSTEXI 334c902760fSMarcelo Tosatti@item -mem-path @var{path} 335c902760fSMarcelo TosattiAllocate guest RAM from a temporarily created file in @var{path}. 336c902760fSMarcelo TosattiETEXI 337c902760fSMarcelo Tosatti 338c902760fSMarcelo Tosatti#ifdef MAP_POPULATE 339c902760fSMarcelo TosattiDEF("mem-prealloc", 0, QEMU_OPTION_mem_prealloc, 340ad96090aSBlue Swirl "-mem-prealloc preallocate guest memory (use with -mem-path)\n", 341ad96090aSBlue Swirl QEMU_ARCH_ALL) 342c902760fSMarcelo TosattiSTEXI 343c902760fSMarcelo Tosatti@item -mem-prealloc 344c902760fSMarcelo TosattiPreallocate memory when using -mem-path. 345c902760fSMarcelo TosattiETEXI 346c902760fSMarcelo Tosatti#endif 347c902760fSMarcelo Tosatti 3485824d651Sblueswir1DEF("k", HAS_ARG, QEMU_OPTION_k, 349ad96090aSBlue Swirl "-k language use keyboard layout (for example 'fr' for French)\n", 350ad96090aSBlue Swirl QEMU_ARCH_ALL) 3515824d651Sblueswir1STEXI 3525824d651Sblueswir1@item -k @var{language} 3536616b2adSStefan Weil@findex -k 3545824d651Sblueswir1Use keyboard layout @var{language} (for example @code{fr} for 3555824d651Sblueswir1French). This option is only needed where it is not easy to get raw PC 3565824d651Sblueswir1keycodes (e.g. on Macs, with some X11 servers or with a VNC 3575824d651Sblueswir1display). You don't normally need to use it on PC/Linux or PC/Windows 3585824d651Sblueswir1hosts. 3595824d651Sblueswir1 3605824d651Sblueswir1The available layouts are: 3615824d651Sblueswir1@example 3625824d651Sblueswir1ar de-ch es fo fr-ca hu ja mk no pt-br sv 3635824d651Sblueswir1da en-gb et fr fr-ch is lt nl pl ru th 3645824d651Sblueswir1de en-us fi fr-be hr it lv nl-be pt sl tr 3655824d651Sblueswir1@end example 3665824d651Sblueswir1 3675824d651Sblueswir1The default is @code{en-us}. 3685824d651Sblueswir1ETEXI 3695824d651Sblueswir1 3705824d651Sblueswir1 3715824d651Sblueswir1DEF("audio-help", 0, QEMU_OPTION_audio_help, 372ad96090aSBlue Swirl "-audio-help print list of audio drivers and their options\n", 373ad96090aSBlue Swirl QEMU_ARCH_ALL) 3745824d651Sblueswir1STEXI 3755824d651Sblueswir1@item -audio-help 3766616b2adSStefan Weil@findex -audio-help 3775824d651Sblueswir1Will show the audio subsystem help: list of drivers, tunable 3785824d651Sblueswir1parameters. 3795824d651Sblueswir1ETEXI 3805824d651Sblueswir1 3815824d651Sblueswir1DEF("soundhw", HAS_ARG, QEMU_OPTION_soundhw, 3825824d651Sblueswir1 "-soundhw c1,... enable audio support\n" 3835824d651Sblueswir1 " and only specified sound cards (comma separated list)\n" 3845824d651Sblueswir1 " use -soundhw ? to get the list of supported cards\n" 385ad96090aSBlue Swirl " use -soundhw all to enable all of them\n", QEMU_ARCH_ALL) 3865824d651Sblueswir1STEXI 3875824d651Sblueswir1@item -soundhw @var{card1}[,@var{card2},...] or -soundhw all 3886616b2adSStefan Weil@findex -soundhw 3895824d651Sblueswir1Enable audio and selected sound hardware. Use ? to print all 3905824d651Sblueswir1available sound hardware. 3915824d651Sblueswir1 3925824d651Sblueswir1@example 3935824d651Sblueswir1qemu -soundhw sb16,adlib disk.img 3945824d651Sblueswir1qemu -soundhw es1370 disk.img 3955824d651Sblueswir1qemu -soundhw ac97 disk.img 3965824d651Sblueswir1qemu -soundhw all disk.img 3975824d651Sblueswir1qemu -soundhw ? 3985824d651Sblueswir1@end example 3995824d651Sblueswir1 4005824d651Sblueswir1Note that Linux's i810_audio OSS kernel (for AC97) module might 4015824d651Sblueswir1require manually specifying clocking. 4025824d651Sblueswir1 4035824d651Sblueswir1@example 4045824d651Sblueswir1modprobe i810_audio clocking=48000 4055824d651Sblueswir1@end example 4065824d651Sblueswir1ETEXI 4075824d651Sblueswir1 4085824d651Sblueswir1STEXI 4095824d651Sblueswir1@end table 4105824d651Sblueswir1ETEXI 4115824d651Sblueswir1 4125824d651Sblueswir1DEF("usb", 0, QEMU_OPTION_usb, 413ad96090aSBlue Swirl "-usb enable the USB driver (will be the default soon)\n", 414ad96090aSBlue Swirl QEMU_ARCH_ALL) 4155824d651Sblueswir1STEXI 4165824d651Sblueswir1USB options: 4175824d651Sblueswir1@table @option 4185824d651Sblueswir1 4195824d651Sblueswir1@item -usb 4206616b2adSStefan Weil@findex -usb 4215824d651Sblueswir1Enable the USB driver (will be the default soon) 4225824d651Sblueswir1ETEXI 4235824d651Sblueswir1 4245824d651Sblueswir1DEF("usbdevice", HAS_ARG, QEMU_OPTION_usbdevice, 425ad96090aSBlue Swirl "-usbdevice name add the host or guest USB device 'name'\n", 426ad96090aSBlue Swirl QEMU_ARCH_ALL) 4275824d651Sblueswir1STEXI 4285824d651Sblueswir1 4295824d651Sblueswir1@item -usbdevice @var{devname} 4306616b2adSStefan Weil@findex -usbdevice 4315824d651Sblueswir1Add the USB device @var{devname}. @xref{usb_devices}. 4325824d651Sblueswir1 433b3f046c2SKevin Wolf@table @option 4345824d651Sblueswir1 4355824d651Sblueswir1@item mouse 4365824d651Sblueswir1Virtual Mouse. This will override the PS/2 mouse emulation when activated. 4375824d651Sblueswir1 4385824d651Sblueswir1@item tablet 4395824d651Sblueswir1Pointer device that uses absolute coordinates (like a touchscreen). This 4405824d651Sblueswir1means qemu is able to report the mouse position without having to grab the 4415824d651Sblueswir1mouse. Also overrides the PS/2 mouse emulation when activated. 4425824d651Sblueswir1 4434e257e5eSKevin Wolf@item disk:[format=@var{format}]:@var{file} 4445824d651Sblueswir1Mass storage device based on file. The optional @var{format} argument 4455824d651Sblueswir1will be used rather than detecting the format. Can be used to specifiy 4464e257e5eSKevin Wolf@code{format=raw} to avoid interpreting an untrusted format header. 4475824d651Sblueswir1 4484e257e5eSKevin Wolf@item host:@var{bus}.@var{addr} 4494e257e5eSKevin WolfPass through the host device identified by @var{bus}.@var{addr} (Linux only). 4505824d651Sblueswir1 4514e257e5eSKevin Wolf@item host:@var{vendor_id}:@var{product_id} 4524e257e5eSKevin WolfPass through the host device identified by @var{vendor_id}:@var{product_id} 4534e257e5eSKevin Wolf(Linux only). 4545824d651Sblueswir1 4555824d651Sblueswir1@item serial:[vendorid=@var{vendor_id}][,productid=@var{product_id}]:@var{dev} 4565824d651Sblueswir1Serial converter to host character device @var{dev}, see @code{-serial} for the 4575824d651Sblueswir1available devices. 4585824d651Sblueswir1 4595824d651Sblueswir1@item braille 4605824d651Sblueswir1Braille device. This will use BrlAPI to display the braille output on a real 4615824d651Sblueswir1or fake device. 4625824d651Sblueswir1 4634e257e5eSKevin Wolf@item net:@var{options} 4645824d651Sblueswir1Network adapter that supports CDC ethernet and RNDIS protocols. 4655824d651Sblueswir1 4665824d651Sblueswir1@end table 4675824d651Sblueswir1ETEXI 4685824d651Sblueswir1 469bd3c948dSGerd HoffmannDEF("device", HAS_ARG, QEMU_OPTION_device, 47040ea285cSMarkus Armbruster "-device driver[,prop[=value][,...]]\n" 47140ea285cSMarkus Armbruster " add device (based on driver)\n" 47240ea285cSMarkus Armbruster " prop=value,... sets driver properties\n" 47369a319d1SStefan Weil " use -device ? to print all possible drivers\n" 4749848bbf1SMarkus Armbruster " use -device driver,? to print all possible properties\n", 475ad96090aSBlue Swirl QEMU_ARCH_ALL) 4763dbf2c7fSStefan WeilSTEXI 4779848bbf1SMarkus Armbruster@item -device @var{driver}[,@var{prop}[=@var{value}][,...]] 4786616b2adSStefan Weil@findex -device 4799848bbf1SMarkus ArmbrusterAdd device @var{driver}. @var{prop}=@var{value} sets driver 4809848bbf1SMarkus Armbrusterproperties. Valid properties depend on the driver. To get help on 4819848bbf1SMarkus Armbrusterpossible drivers and properties, use @code{-device ?} and 4829848bbf1SMarkus Armbruster@code{-device @var{driver},?}. 4833dbf2c7fSStefan WeilETEXI 4843dbf2c7fSStefan Weil 48574db920cSGautham R ShenoyDEFHEADING(File system options:) 48674db920cSGautham R Shenoy 48774db920cSGautham R ShenoyDEF("fsdev", HAS_ARG, QEMU_OPTION_fsdev, 48812848bfcSAneesh Kumar K.V "-fsdev local,id=id,path=path,security_model=[mapped|passthrough|none]\n", 48974db920cSGautham R Shenoy QEMU_ARCH_ALL) 49074db920cSGautham R Shenoy 49174db920cSGautham R ShenoySTEXI 49274db920cSGautham R Shenoy 49374db920cSGautham R ShenoyThe general form of a File system device option is: 49474db920cSGautham R Shenoy@table @option 49574db920cSGautham R Shenoy 49674db920cSGautham R Shenoy@item -fsdev @var{fstype} ,id=@var{id} [,@var{options}] 49774db920cSGautham R Shenoy@findex -fsdev 49874db920cSGautham R ShenoyFstype is one of: 49974db920cSGautham R Shenoy@option{local}, 50074db920cSGautham R ShenoyThe specific Fstype will determine the applicable options. 50174db920cSGautham R Shenoy 50274db920cSGautham R ShenoyOptions to each backend are described below. 50374db920cSGautham R Shenoy 5049ce56db6SVenkateswararao Jujjuri (JV)@item -fsdev local ,id=@var{id} ,path=@var{path} ,security_model=@var{security_model} 50574db920cSGautham R Shenoy 50674db920cSGautham R ShenoyCreate a file-system-"device" for local-filesystem. 50774db920cSGautham R Shenoy 50874db920cSGautham R Shenoy@option{local} is only available on Linux. 50974db920cSGautham R Shenoy 51074db920cSGautham R Shenoy@option{path} specifies the path to be exported. @option{path} is required. 51174db920cSGautham R Shenoy 5129ce56db6SVenkateswararao Jujjuri (JV)@option{security_model} specifies the security model to be followed. 5139ce56db6SVenkateswararao Jujjuri (JV)@option{security_model} is required. 5149ce56db6SVenkateswararao Jujjuri (JV) 51574db920cSGautham R Shenoy@end table 51674db920cSGautham R ShenoyETEXI 51774db920cSGautham R Shenoy 5183d54abc7SGautham R ShenoyDEFHEADING(Virtual File system pass-through options:) 5193d54abc7SGautham R Shenoy 5203d54abc7SGautham R ShenoyDEF("virtfs", HAS_ARG, QEMU_OPTION_virtfs, 52112848bfcSAneesh Kumar K.V "-virtfs local,path=path,mount_tag=tag,security_model=[mapped|passthrough|none]\n", 5223d54abc7SGautham R Shenoy QEMU_ARCH_ALL) 5233d54abc7SGautham R Shenoy 5243d54abc7SGautham R ShenoySTEXI 5253d54abc7SGautham R Shenoy 5263d54abc7SGautham R ShenoyThe general form of a Virtual File system pass-through option is: 5273d54abc7SGautham R Shenoy@table @option 5283d54abc7SGautham R Shenoy 5293d54abc7SGautham R Shenoy@item -virtfs @var{fstype} [,@var{options}] 5303d54abc7SGautham R Shenoy@findex -virtfs 5313d54abc7SGautham R ShenoyFstype is one of: 5323d54abc7SGautham R Shenoy@option{local}, 5333d54abc7SGautham R ShenoyThe specific Fstype will determine the applicable options. 5343d54abc7SGautham R Shenoy 5353d54abc7SGautham R ShenoyOptions to each backend are described below. 5363d54abc7SGautham R Shenoy 5379ce56db6SVenkateswararao Jujjuri (JV)@item -virtfs local ,path=@var{path} ,mount_tag=@var{mount_tag} ,security_model=@var{security_model} 5383d54abc7SGautham R Shenoy 5393d54abc7SGautham R ShenoyCreate a Virtual file-system-pass through for local-filesystem. 5403d54abc7SGautham R Shenoy 5413d54abc7SGautham R Shenoy@option{local} is only available on Linux. 5423d54abc7SGautham R Shenoy 5433d54abc7SGautham R Shenoy@option{path} specifies the path to be exported. @option{path} is required. 5443d54abc7SGautham R Shenoy 5459ce56db6SVenkateswararao Jujjuri (JV)@option{security_model} specifies the security model to be followed. 5469ce56db6SVenkateswararao Jujjuri (JV)@option{security_model} is required. 5479ce56db6SVenkateswararao Jujjuri (JV) 5489ce56db6SVenkateswararao Jujjuri (JV) 5493d54abc7SGautham R Shenoy@option{mount_tag} specifies the tag with which the exported file is mounted. 5503d54abc7SGautham R Shenoy@option{mount_tag} is required. 5513d54abc7SGautham R Shenoy 5523d54abc7SGautham R Shenoy@end table 5533d54abc7SGautham R ShenoyETEXI 5543d54abc7SGautham R Shenoy 55574db920cSGautham R ShenoyDEFHEADING() 55674db920cSGautham R Shenoy 5575824d651Sblueswir1DEF("name", HAS_ARG, QEMU_OPTION_name, 558ca1a8a06SBruce Rogers "-name string1[,process=string2]\n" 559ca1a8a06SBruce Rogers " set the name of the guest\n" 560ad96090aSBlue Swirl " string1 sets the window title and string2 the process name (on Linux)\n", 561ad96090aSBlue Swirl QEMU_ARCH_ALL) 5625824d651Sblueswir1STEXI 5635824d651Sblueswir1@item -name @var{name} 5646616b2adSStefan Weil@findex -name 5655824d651Sblueswir1Sets the @var{name} of the guest. 5665824d651Sblueswir1This name will be displayed in the SDL window caption. 5675824d651Sblueswir1The @var{name} will also be used for the VNC server. 5681889465aSAndi KleenAlso optionally set the top visible process name in Linux. 5695824d651Sblueswir1ETEXI 5705824d651Sblueswir1 5715824d651Sblueswir1DEF("uuid", HAS_ARG, QEMU_OPTION_uuid, 572e8105ebbSPaolo Bonzini "-uuid %08x-%04x-%04x-%04x-%012x\n" 573ad96090aSBlue Swirl " specify machine UUID\n", QEMU_ARCH_ALL) 5745824d651Sblueswir1STEXI 5755824d651Sblueswir1@item -uuid @var{uuid} 5766616b2adSStefan Weil@findex -uuid 5775824d651Sblueswir1Set system UUID. 5785824d651Sblueswir1ETEXI 5795824d651Sblueswir1 5805824d651Sblueswir1STEXI 5815824d651Sblueswir1@end table 5825824d651Sblueswir1ETEXI 5835824d651Sblueswir1 5845824d651Sblueswir1DEFHEADING() 5855824d651Sblueswir1 5865824d651Sblueswir1DEFHEADING(Display options:) 5875824d651Sblueswir1 5885824d651Sblueswir1STEXI 5895824d651Sblueswir1@table @option 5905824d651Sblueswir1ETEXI 5915824d651Sblueswir1 5925824d651Sblueswir1DEF("nographic", 0, QEMU_OPTION_nographic, 593ad96090aSBlue Swirl "-nographic disable graphical output and redirect serial I/Os to console\n", 594ad96090aSBlue Swirl QEMU_ARCH_ALL) 5955824d651Sblueswir1STEXI 5965824d651Sblueswir1@item -nographic 5976616b2adSStefan Weil@findex -nographic 5985824d651Sblueswir1Normally, QEMU uses SDL to display the VGA output. With this option, 5995824d651Sblueswir1you can totally disable graphical output so that QEMU is a simple 6005824d651Sblueswir1command line application. The emulated serial port is redirected on 6015824d651Sblueswir1the console. Therefore, you can still use QEMU to debug a Linux kernel 6025824d651Sblueswir1with a serial console. 6035824d651Sblueswir1ETEXI 6045824d651Sblueswir1 6055824d651Sblueswir1#ifdef CONFIG_CURSES 6065824d651Sblueswir1DEF("curses", 0, QEMU_OPTION_curses, 607ad96090aSBlue Swirl "-curses use a curses/ncurses interface instead of SDL\n", 608ad96090aSBlue Swirl QEMU_ARCH_ALL) 6095824d651Sblueswir1#endif 6105824d651Sblueswir1STEXI 6115824d651Sblueswir1@item -curses 6126616b2adSStefan Weil@findex curses 6135824d651Sblueswir1Normally, QEMU uses SDL to display the VGA output. With this option, 6145824d651Sblueswir1QEMU can display the VGA output when in text mode using a 6155824d651Sblueswir1curses/ncurses interface. Nothing is displayed in graphical mode. 6165824d651Sblueswir1ETEXI 6175824d651Sblueswir1 6185824d651Sblueswir1#ifdef CONFIG_SDL 6195824d651Sblueswir1DEF("no-frame", 0, QEMU_OPTION_no_frame, 620ad96090aSBlue Swirl "-no-frame open SDL window without a frame and window decorations\n", 621ad96090aSBlue Swirl QEMU_ARCH_ALL) 6225824d651Sblueswir1#endif 6235824d651Sblueswir1STEXI 6245824d651Sblueswir1@item -no-frame 6256616b2adSStefan Weil@findex -no-frame 6265824d651Sblueswir1Do not use decorations for SDL windows and start them using the whole 6275824d651Sblueswir1available screen space. This makes the using QEMU in a dedicated desktop 6285824d651Sblueswir1workspace more convenient. 6295824d651Sblueswir1ETEXI 6305824d651Sblueswir1 6315824d651Sblueswir1#ifdef CONFIG_SDL 6325824d651Sblueswir1DEF("alt-grab", 0, QEMU_OPTION_alt_grab, 633ad96090aSBlue Swirl "-alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt)\n", 634ad96090aSBlue Swirl QEMU_ARCH_ALL) 6355824d651Sblueswir1#endif 6365824d651Sblueswir1STEXI 6375824d651Sblueswir1@item -alt-grab 6386616b2adSStefan Weil@findex -alt-grab 6395824d651Sblueswir1Use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt). 6405824d651Sblueswir1ETEXI 6415824d651Sblueswir1 6425824d651Sblueswir1#ifdef CONFIG_SDL 6430ca9f8a4SDustin KirklandDEF("ctrl-grab", 0, QEMU_OPTION_ctrl_grab, 644ad96090aSBlue Swirl "-ctrl-grab use Right-Ctrl to grab mouse (instead of Ctrl-Alt)\n", 645ad96090aSBlue Swirl QEMU_ARCH_ALL) 6460ca9f8a4SDustin Kirkland#endif 6470ca9f8a4SDustin KirklandSTEXI 6480ca9f8a4SDustin Kirkland@item -ctrl-grab 6496616b2adSStefan Weil@findex -ctrl-grab 6500ca9f8a4SDustin KirklandUse Right-Ctrl to grab mouse (instead of Ctrl-Alt). 6510ca9f8a4SDustin KirklandETEXI 6520ca9f8a4SDustin Kirkland 6530ca9f8a4SDustin Kirkland#ifdef CONFIG_SDL 6545824d651Sblueswir1DEF("no-quit", 0, QEMU_OPTION_no_quit, 655ad96090aSBlue Swirl "-no-quit disable SDL window close capability\n", QEMU_ARCH_ALL) 6565824d651Sblueswir1#endif 6575824d651Sblueswir1STEXI 6585824d651Sblueswir1@item -no-quit 6596616b2adSStefan Weil@findex -no-quit 6605824d651Sblueswir1Disable SDL window close capability. 6615824d651Sblueswir1ETEXI 6625824d651Sblueswir1 6635824d651Sblueswir1#ifdef CONFIG_SDL 6645824d651Sblueswir1DEF("sdl", 0, QEMU_OPTION_sdl, 665ad96090aSBlue Swirl "-sdl enable SDL\n", QEMU_ARCH_ALL) 6665824d651Sblueswir1#endif 6675824d651Sblueswir1STEXI 6685824d651Sblueswir1@item -sdl 6696616b2adSStefan Weil@findex -sdl 6705824d651Sblueswir1Enable SDL. 6715824d651Sblueswir1ETEXI 6725824d651Sblueswir1 67329b0040bSGerd HoffmannDEF("spice", HAS_ARG, QEMU_OPTION_spice, 67429b0040bSGerd Hoffmann "-spice <args> enable spice\n", QEMU_ARCH_ALL) 67529b0040bSGerd HoffmannSTEXI 67629b0040bSGerd Hoffmann@item -spice @var{option}[,@var{option}[,...]] 67729b0040bSGerd Hoffmann@findex -spice 67829b0040bSGerd HoffmannEnable the spice remote desktop protocol. Valid options are 67929b0040bSGerd Hoffmann 68029b0040bSGerd Hoffmann@table @option 68129b0040bSGerd Hoffmann 68229b0040bSGerd Hoffmann@item port=<nr> 683c448e855SGerd HoffmannSet the TCP port spice is listening on for plaintext channels. 68429b0040bSGerd Hoffmann 68529b0040bSGerd Hoffmann@item password=<secret> 68629b0040bSGerd HoffmannSet the password you need to authenticate. 68729b0040bSGerd Hoffmann 68829b0040bSGerd Hoffmann@item disable-ticketing 68929b0040bSGerd HoffmannAllow client connects without authentication. 69029b0040bSGerd Hoffmann 691c448e855SGerd Hoffmann@item tls-port=<nr> 692c448e855SGerd HoffmannSet the TCP port spice is listening on for encrypted channels. 693c448e855SGerd Hoffmann 694c448e855SGerd Hoffmann@item x509-dir=<dir> 695c448e855SGerd HoffmannSet the x509 file directory. Expects same filenames as -vnc $display,x509=$dir 696c448e855SGerd Hoffmann 697c448e855SGerd Hoffmann@item x509-key-file=<file> 698c448e855SGerd Hoffmann@item x509-key-password=<file> 699c448e855SGerd Hoffmann@item x509-cert-file=<file> 700c448e855SGerd Hoffmann@item x509-cacert-file=<file> 701c448e855SGerd Hoffmann@item x509-dh-key-file=<file> 702c448e855SGerd HoffmannThe x509 file names can also be configured individually. 703c448e855SGerd Hoffmann 704c448e855SGerd Hoffmann@item tls-ciphers=<list> 705c448e855SGerd HoffmannSpecify which ciphers to use. 706c448e855SGerd Hoffmann 707*17b6dea0SGerd Hoffmann@item tls-channel=[main|display|inputs|record|playback|tunnel] 708*17b6dea0SGerd Hoffmann@item plaintext-channel=[main|display|inputs|record|playback|tunnel] 709*17b6dea0SGerd HoffmannForce specific channel to be used with or without TLS encryption. The 710*17b6dea0SGerd Hoffmannoptions can be specified multiple times to configure multiple 711*17b6dea0SGerd Hoffmannchannels. The special name "default" can be used to set the default 712*17b6dea0SGerd Hoffmannmode. For channels which are not explicitly forced into one mode the 713*17b6dea0SGerd Hoffmannspice client is allowed to pick tls/plaintext as he pleases. 714*17b6dea0SGerd Hoffmann 7159f04e09eSYonit Halperin@item image-compression=[auto_glz|auto_lz|quic|glz|lz|off] 7169f04e09eSYonit HalperinConfigure image compression (lossless). 7179f04e09eSYonit HalperinDefault is auto_glz. 7189f04e09eSYonit Halperin 7199f04e09eSYonit Halperin@item jpeg-wan-compression=[auto|never|always] 7209f04e09eSYonit Halperin@item zlib-glz-wan-compression=[auto|never|always] 7219f04e09eSYonit HalperinConfigure wan image compression (lossy for slow links). 7229f04e09eSYonit HalperinDefault is auto. 7239f04e09eSYonit Halperin 72429b0040bSGerd Hoffmann@end table 72529b0040bSGerd HoffmannETEXI 72629b0040bSGerd Hoffmann 7275824d651Sblueswir1DEF("portrait", 0, QEMU_OPTION_portrait, 728ad96090aSBlue Swirl "-portrait rotate graphical output 90 deg left (only PXA LCD)\n", 729ad96090aSBlue Swirl QEMU_ARCH_ALL) 7305824d651Sblueswir1STEXI 7315824d651Sblueswir1@item -portrait 7326616b2adSStefan Weil@findex -portrait 7335824d651Sblueswir1Rotate graphical output 90 deg left (only PXA LCD). 7345824d651Sblueswir1ETEXI 7355824d651Sblueswir1 7365824d651Sblueswir1DEF("vga", HAS_ARG, QEMU_OPTION_vga, 73794909d9fSaliguori "-vga [std|cirrus|vmware|xenfb|none]\n" 738ad96090aSBlue Swirl " select video card type\n", QEMU_ARCH_ALL) 7395824d651Sblueswir1STEXI 7405824d651Sblueswir1@item -vga @var{type} 7416616b2adSStefan Weil@findex -vga 7425824d651Sblueswir1Select type of VGA card to emulate. Valid values for @var{type} are 743b3f046c2SKevin Wolf@table @option 7445824d651Sblueswir1@item cirrus 7455824d651Sblueswir1Cirrus Logic GD5446 Video card. All Windows versions starting from 7465824d651Sblueswir1Windows 95 should recognize and use this graphic card. For optimal 7475824d651Sblueswir1performances, use 16 bit color depth in the guest and the host OS. 7485824d651Sblueswir1(This one is the default) 7495824d651Sblueswir1@item std 7505824d651Sblueswir1Standard VGA card with Bochs VBE extensions. If your guest OS 7515824d651Sblueswir1supports the VESA 2.0 VBE extensions (e.g. Windows XP) and if you want 7525824d651Sblueswir1to use high resolution modes (>= 1280x1024x16) then you should use 7535824d651Sblueswir1this option. 7545824d651Sblueswir1@item vmware 7555824d651Sblueswir1VMWare SVGA-II compatible adapter. Use it if you have sufficiently 7565824d651Sblueswir1recent XFree86/XOrg server or Windows guest with a driver for this 7575824d651Sblueswir1card. 7585824d651Sblueswir1@item none 7595824d651Sblueswir1Disable VGA card. 7605824d651Sblueswir1@end table 7615824d651Sblueswir1ETEXI 7625824d651Sblueswir1 7635824d651Sblueswir1DEF("full-screen", 0, QEMU_OPTION_full_screen, 764ad96090aSBlue Swirl "-full-screen start in full screen\n", QEMU_ARCH_ALL) 7655824d651Sblueswir1STEXI 7665824d651Sblueswir1@item -full-screen 7676616b2adSStefan Weil@findex -full-screen 7685824d651Sblueswir1Start in full screen. 7695824d651Sblueswir1ETEXI 7705824d651Sblueswir1 7715824d651Sblueswir1DEF("g", 1, QEMU_OPTION_g , 772ad96090aSBlue Swirl "-g WxH[xDEPTH] Set the initial graphical resolution and depth\n", 773ad96090aSBlue Swirl QEMU_ARCH_PPC | QEMU_ARCH_SPARC) 7745824d651Sblueswir1STEXI 77595d5f08bSStefan Weil@item -g @var{width}x@var{height}[x@var{depth}] 7766616b2adSStefan Weil@findex -g 77795d5f08bSStefan WeilSet the initial graphical resolution and depth (PPC, SPARC only). 7785824d651Sblueswir1ETEXI 7795824d651Sblueswir1 7805824d651Sblueswir1DEF("vnc", HAS_ARG, QEMU_OPTION_vnc , 781ad96090aSBlue Swirl "-vnc display start a VNC server on display\n", QEMU_ARCH_ALL) 7825824d651Sblueswir1STEXI 7835824d651Sblueswir1@item -vnc @var{display}[,@var{option}[,@var{option}[,...]]] 7846616b2adSStefan Weil@findex -vnc 7855824d651Sblueswir1Normally, QEMU uses SDL to display the VGA output. With this option, 7865824d651Sblueswir1you can have QEMU listen on VNC display @var{display} and redirect the VGA 7875824d651Sblueswir1display over the VNC session. It is very useful to enable the usb 7885824d651Sblueswir1tablet device when using this option (option @option{-usbdevice 7895824d651Sblueswir1tablet}). When using the VNC display, you must use the @option{-k} 7905824d651Sblueswir1parameter to set the keyboard layout if you are not using en-us. Valid 7915824d651Sblueswir1syntax for the @var{display} is 7925824d651Sblueswir1 793b3f046c2SKevin Wolf@table @option 7945824d651Sblueswir1 7955824d651Sblueswir1@item @var{host}:@var{d} 7965824d651Sblueswir1 7975824d651Sblueswir1TCP connections will only be allowed from @var{host} on display @var{d}. 7985824d651Sblueswir1By convention the TCP port is 5900+@var{d}. Optionally, @var{host} can 7995824d651Sblueswir1be omitted in which case the server will accept connections from any host. 8005824d651Sblueswir1 8014e257e5eSKevin Wolf@item unix:@var{path} 8025824d651Sblueswir1 8035824d651Sblueswir1Connections will be allowed over UNIX domain sockets where @var{path} is the 8045824d651Sblueswir1location of a unix socket to listen for connections on. 8055824d651Sblueswir1 8065824d651Sblueswir1@item none 8075824d651Sblueswir1 8085824d651Sblueswir1VNC is initialized but not started. The monitor @code{change} command 8095824d651Sblueswir1can be used to later start the VNC server. 8105824d651Sblueswir1 8115824d651Sblueswir1@end table 8125824d651Sblueswir1 8135824d651Sblueswir1Following the @var{display} value there may be one or more @var{option} flags 8145824d651Sblueswir1separated by commas. Valid options are 8155824d651Sblueswir1 816b3f046c2SKevin Wolf@table @option 8175824d651Sblueswir1 8185824d651Sblueswir1@item reverse 8195824d651Sblueswir1 8205824d651Sblueswir1Connect to a listening VNC client via a ``reverse'' connection. The 8215824d651Sblueswir1client is specified by the @var{display}. For reverse network 8225824d651Sblueswir1connections (@var{host}:@var{d},@code{reverse}), the @var{d} argument 8235824d651Sblueswir1is a TCP port number, not a display number. 8245824d651Sblueswir1 8255824d651Sblueswir1@item password 8265824d651Sblueswir1 8275824d651Sblueswir1Require that password based authentication is used for client connections. 8285824d651Sblueswir1The password must be set separately using the @code{change} command in the 8295824d651Sblueswir1@ref{pcsys_monitor} 8305824d651Sblueswir1 8315824d651Sblueswir1@item tls 8325824d651Sblueswir1 8335824d651Sblueswir1Require that client use TLS when communicating with the VNC server. This 8345824d651Sblueswir1uses anonymous TLS credentials so is susceptible to a man-in-the-middle 8355824d651Sblueswir1attack. It is recommended that this option be combined with either the 8364e257e5eSKevin Wolf@option{x509} or @option{x509verify} options. 8375824d651Sblueswir1 8385824d651Sblueswir1@item x509=@var{/path/to/certificate/dir} 8395824d651Sblueswir1 8405824d651Sblueswir1Valid if @option{tls} is specified. Require that x509 credentials are used 8415824d651Sblueswir1for negotiating the TLS session. The server will send its x509 certificate 8425824d651Sblueswir1to the client. It is recommended that a password be set on the VNC server 8435824d651Sblueswir1to provide authentication of the client when this is used. The path following 8445824d651Sblueswir1this option specifies where the x509 certificates are to be loaded from. 8455824d651Sblueswir1See the @ref{vnc_security} section for details on generating certificates. 8465824d651Sblueswir1 8475824d651Sblueswir1@item x509verify=@var{/path/to/certificate/dir} 8485824d651Sblueswir1 8495824d651Sblueswir1Valid if @option{tls} is specified. Require that x509 credentials are used 8505824d651Sblueswir1for negotiating the TLS session. The server will send its x509 certificate 8515824d651Sblueswir1to the client, and request that the client send its own x509 certificate. 8525824d651Sblueswir1The server will validate the client's certificate against the CA certificate, 8535824d651Sblueswir1and reject clients when validation fails. If the certificate authority is 8545824d651Sblueswir1trusted, this is a sufficient authentication mechanism. You may still wish 8555824d651Sblueswir1to set a password on the VNC server as a second authentication layer. The 8565824d651Sblueswir1path following this option specifies where the x509 certificates are to 8575824d651Sblueswir1be loaded from. See the @ref{vnc_security} section for details on generating 8585824d651Sblueswir1certificates. 8595824d651Sblueswir1 8605824d651Sblueswir1@item sasl 8615824d651Sblueswir1 8625824d651Sblueswir1Require that the client use SASL to authenticate with the VNC server. 8635824d651Sblueswir1The exact choice of authentication method used is controlled from the 8645824d651Sblueswir1system / user's SASL configuration file for the 'qemu' service. This 8655824d651Sblueswir1is typically found in /etc/sasl2/qemu.conf. If running QEMU as an 8665824d651Sblueswir1unprivileged user, an environment variable SASL_CONF_PATH can be used 8675824d651Sblueswir1to make it search alternate locations for the service config. 8685824d651Sblueswir1While some SASL auth methods can also provide data encryption (eg GSSAPI), 8695824d651Sblueswir1it is recommended that SASL always be combined with the 'tls' and 8705824d651Sblueswir1'x509' settings to enable use of SSL and server certificates. This 8715824d651Sblueswir1ensures a data encryption preventing compromise of authentication 8725824d651Sblueswir1credentials. See the @ref{vnc_security} section for details on using 8735824d651Sblueswir1SASL authentication. 8745824d651Sblueswir1 8755824d651Sblueswir1@item acl 8765824d651Sblueswir1 8775824d651Sblueswir1Turn on access control lists for checking of the x509 client certificate 8785824d651Sblueswir1and SASL party. For x509 certs, the ACL check is made against the 8795824d651Sblueswir1certificate's distinguished name. This is something that looks like 8805824d651Sblueswir1@code{C=GB,O=ACME,L=Boston,CN=bob}. For SASL party, the ACL check is 8815824d651Sblueswir1made against the username, which depending on the SASL plugin, may 8825824d651Sblueswir1include a realm component, eg @code{bob} or @code{bob@@EXAMPLE.COM}. 8835824d651Sblueswir1When the @option{acl} flag is set, the initial access list will be 8845824d651Sblueswir1empty, with a @code{deny} policy. Thus no one will be allowed to 8855824d651Sblueswir1use the VNC server until the ACLs have been loaded. This can be 8865824d651Sblueswir1achieved using the @code{acl} monitor command. 8875824d651Sblueswir1 8886f9c78c1SCorentin Chary@item lossy 8896f9c78c1SCorentin Chary 8906f9c78c1SCorentin CharyEnable lossy compression methods (gradient, JPEG, ...). If this 8916f9c78c1SCorentin Charyoption is set, VNC client may receive lossy framebuffer updates 8926f9c78c1SCorentin Charydepending on its encoding settings. Enabling this option can save 8936f9c78c1SCorentin Charya lot of bandwidth at the expense of quality. 8946f9c78c1SCorentin Chary 8955824d651Sblueswir1@end table 8965824d651Sblueswir1ETEXI 8975824d651Sblueswir1 8985824d651Sblueswir1STEXI 8995824d651Sblueswir1@end table 9005824d651Sblueswir1ETEXI 9015824d651Sblueswir1 9025824d651Sblueswir1DEFHEADING() 9035824d651Sblueswir1 9045824d651Sblueswir1DEFHEADING(i386 target only:) 9055824d651Sblueswir1STEXI 9065824d651Sblueswir1@table @option 9075824d651Sblueswir1ETEXI 9085824d651Sblueswir1 9095824d651Sblueswir1DEF("win2k-hack", 0, QEMU_OPTION_win2k_hack, 910ad96090aSBlue Swirl "-win2k-hack use it when installing Windows 2000 to avoid a disk full bug\n", 911ad96090aSBlue Swirl QEMU_ARCH_I386) 9125824d651Sblueswir1STEXI 9135824d651Sblueswir1@item -win2k-hack 9146616b2adSStefan Weil@findex -win2k-hack 9155824d651Sblueswir1Use it when installing Windows 2000 to avoid a disk full bug. After 9165824d651Sblueswir1Windows 2000 is installed, you no longer need this option (this option 9175824d651Sblueswir1slows down the IDE transfers). 9185824d651Sblueswir1ETEXI 9195824d651Sblueswir1 9201ed2fc1fSJan KiszkaHXCOMM Deprecated by -rtc 921ad96090aSBlue SwirlDEF("rtc-td-hack", 0, QEMU_OPTION_rtc_td_hack, "", QEMU_ARCH_I386) 9225824d651Sblueswir1 9235824d651Sblueswir1DEF("no-fd-bootchk", 0, QEMU_OPTION_no_fd_bootchk, 924ad96090aSBlue Swirl "-no-fd-bootchk disable boot signature checking for floppy disks\n", 925ad96090aSBlue Swirl QEMU_ARCH_I386) 9265824d651Sblueswir1STEXI 9275824d651Sblueswir1@item -no-fd-bootchk 9286616b2adSStefan Weil@findex -no-fd-bootchk 9295824d651Sblueswir1Disable boot signature checking for floppy disks in Bochs BIOS. It may 9305824d651Sblueswir1be needed to boot from old floppy disks. 9316616b2adSStefan WeilTODO: check reference to Bochs BIOS. 9325824d651Sblueswir1ETEXI 9335824d651Sblueswir1 9345824d651Sblueswir1DEF("no-acpi", 0, QEMU_OPTION_no_acpi, 935ad96090aSBlue Swirl "-no-acpi disable ACPI\n", QEMU_ARCH_I386) 9365824d651Sblueswir1STEXI 9375824d651Sblueswir1@item -no-acpi 9386616b2adSStefan Weil@findex -no-acpi 9395824d651Sblueswir1Disable ACPI (Advanced Configuration and Power Interface) support. Use 9405824d651Sblueswir1it if your guest OS complains about ACPI problems (PC target machine 9415824d651Sblueswir1only). 9425824d651Sblueswir1ETEXI 9435824d651Sblueswir1 9445824d651Sblueswir1DEF("no-hpet", 0, QEMU_OPTION_no_hpet, 945ad96090aSBlue Swirl "-no-hpet disable HPET\n", QEMU_ARCH_I386) 9465824d651Sblueswir1STEXI 9475824d651Sblueswir1@item -no-hpet 9486616b2adSStefan Weil@findex -no-hpet 9495824d651Sblueswir1Disable HPET support. 9505824d651Sblueswir1ETEXI 9515824d651Sblueswir1 9527d4c3d53SMarkus ArmbrusterDEF("balloon", HAS_ARG, QEMU_OPTION_balloon, 9537d4c3d53SMarkus Armbruster "-balloon none disable balloon device\n" 9547d4c3d53SMarkus Armbruster "-balloon virtio[,addr=str]\n" 955ad96090aSBlue Swirl " enable virtio balloon device (default)\n", QEMU_ARCH_ALL) 956df97b920SEduardo HabkostSTEXI 9577d4c3d53SMarkus Armbruster@item -balloon none 9586616b2adSStefan Weil@findex -balloon 9597d4c3d53SMarkus ArmbrusterDisable balloon device. 9607d4c3d53SMarkus Armbruster@item -balloon virtio[,addr=@var{addr}] 9617d4c3d53SMarkus ArmbrusterEnable virtio balloon device (default), optionally with PCI address 9627d4c3d53SMarkus Armbruster@var{addr}. 963df97b920SEduardo HabkostETEXI 964df97b920SEduardo Habkost 9655824d651Sblueswir1DEF("acpitable", HAS_ARG, QEMU_OPTION_acpitable, 9665824d651Sblueswir1 "-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" 967ad96090aSBlue Swirl " ACPI table description\n", QEMU_ARCH_I386) 9685824d651Sblueswir1STEXI 9695824d651Sblueswir1@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}]...] 9706616b2adSStefan Weil@findex -acpitable 9715824d651Sblueswir1Add ACPI table with specified header fields and context from specified files. 9725824d651Sblueswir1ETEXI 9735824d651Sblueswir1 974b6f6e3d3SaliguoriDEF("smbios", HAS_ARG, QEMU_OPTION_smbios, 975b6f6e3d3Saliguori "-smbios file=binary\n" 976ca1a8a06SBruce Rogers " load SMBIOS entry from binary file\n" 977e8105ebbSPaolo Bonzini "-smbios type=0[,vendor=str][,version=str][,date=str][,release=%d.%d]\n" 978ca1a8a06SBruce Rogers " specify SMBIOS type 0 fields\n" 979b6f6e3d3Saliguori "-smbios type=1[,manufacturer=str][,product=str][,version=str][,serial=str]\n" 980b6f6e3d3Saliguori " [,uuid=uuid][,sku=str][,family=str]\n" 981ad96090aSBlue Swirl " specify SMBIOS type 1 fields\n", QEMU_ARCH_I386) 982b6f6e3d3SaliguoriSTEXI 983b6f6e3d3Saliguori@item -smbios file=@var{binary} 9846616b2adSStefan Weil@findex -smbios 985b6f6e3d3SaliguoriLoad SMBIOS entry from binary file. 986b6f6e3d3Saliguori 987b6f6e3d3Saliguori@item -smbios type=0[,vendor=@var{str}][,version=@var{str}][,date=@var{str}][,release=@var{%d.%d}] 9886616b2adSStefan Weil@findex -smbios 989b6f6e3d3SaliguoriSpecify SMBIOS type 0 fields 990b6f6e3d3Saliguori 991b6f6e3d3Saliguori@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}] 992b6f6e3d3SaliguoriSpecify SMBIOS type 1 fields 993b6f6e3d3SaliguoriETEXI 994b6f6e3d3Saliguori 9955824d651Sblueswir1DEFHEADING() 9965824d651Sblueswir1STEXI 9975824d651Sblueswir1@end table 9985824d651Sblueswir1ETEXI 9995824d651Sblueswir1 10005824d651Sblueswir1DEFHEADING(Network options:) 10015824d651Sblueswir1STEXI 10025824d651Sblueswir1@table @option 10035824d651Sblueswir1ETEXI 10045824d651Sblueswir1 1005ad196a9dSJan KiszkaHXCOMM Legacy slirp options (now moved to -net user): 1006ad196a9dSJan Kiszka#ifdef CONFIG_SLIRP 1007ad96090aSBlue SwirlDEF("tftp", HAS_ARG, QEMU_OPTION_tftp, "", QEMU_ARCH_ALL) 1008ad96090aSBlue SwirlDEF("bootp", HAS_ARG, QEMU_OPTION_bootp, "", QEMU_ARCH_ALL) 1009ad96090aSBlue SwirlDEF("redir", HAS_ARG, QEMU_OPTION_redir, "", QEMU_ARCH_ALL) 1010ad196a9dSJan Kiszka#ifndef _WIN32 1011ad96090aSBlue SwirlDEF("smb", HAS_ARG, QEMU_OPTION_smb, "", QEMU_ARCH_ALL) 1012ad196a9dSJan Kiszka#endif 1013ad196a9dSJan Kiszka#endif 1014ad196a9dSJan Kiszka 1015bab7944cSBlue SwirlDEF("net", HAS_ARG, QEMU_OPTION_net, 1016ffe6370cSMichael S. Tsirkin "-net nic[,vlan=n][,macaddr=mac][,model=type][,name=str][,addr=str][,vectors=v]\n" 10175824d651Sblueswir1 " create a new Network Interface Card and connect it to VLAN 'n'\n" 10185824d651Sblueswir1#ifdef CONFIG_SLIRP 1019c92ef6a2SJan Kiszka "-net user[,vlan=n][,name=str][,net=addr[/mask]][,host=addr][,restrict=y|n]\n" 1020c92ef6a2SJan Kiszka " [,hostname=host][,dhcpstart=addr][,dns=addr][,tftp=dir][,bootfile=f]\n" 1021c92ef6a2SJan Kiszka " [,hostfwd=rule][,guestfwd=rule]" 1022ad196a9dSJan Kiszka#ifndef _WIN32 1023c92ef6a2SJan Kiszka "[,smb=dir[,smbserver=addr]]\n" 1024ad196a9dSJan Kiszka#endif 1025ad196a9dSJan Kiszka " connect the user mode network stack to VLAN 'n', configure its\n" 1026ad196a9dSJan Kiszka " DHCP server and enabled optional services\n" 10275824d651Sblueswir1#endif 10285824d651Sblueswir1#ifdef _WIN32 10295824d651Sblueswir1 "-net tap[,vlan=n][,name=str],ifname=name\n" 10305824d651Sblueswir1 " connect the host TAP network interface to VLAN 'n'\n" 10315824d651Sblueswir1#else 103282b0d80eSMichael S. Tsirkin "-net tap[,vlan=n][,name=str][,fd=h][,ifname=name][,script=file][,downscript=dfile][,sndbuf=nbytes][,vnet_hdr=on|off][,vhost=on|off][,vhostfd=h]\n" 10335824d651Sblueswir1 " connect the host TAP network interface to VLAN 'n' and use the\n" 1034bec7c2d4SPaolo Bonzini " network scripts 'file' (default=" DEFAULT_NETWORK_SCRIPT ")\n" 1035bec7c2d4SPaolo Bonzini " and 'dfile' (default=" DEFAULT_NETWORK_DOWN_SCRIPT ")\n" 1036ca1a8a06SBruce Rogers " use '[down]script=no' to disable script execution\n" 10375824d651Sblueswir1 " use 'fd=h' to connect to an already opened TAP interface\n" 1038ca1a8a06SBruce Rogers " use 'sndbuf=nbytes' to limit the size of the send buffer (the\n" 1039ca1a8a06SBruce Rogers " default of 'sndbuf=1048576' can be disabled using 'sndbuf=0')\n" 1040ca1a8a06SBruce Rogers " use vnet_hdr=off to avoid enabling the IFF_VNET_HDR tap flag\n" 1041ca1a8a06SBruce Rogers " use vnet_hdr=on to make the lack of IFF_VNET_HDR support an error condition\n" 104282b0d80eSMichael S. Tsirkin " use vhost=on to enable experimental in kernel accelerator\n" 104382b0d80eSMichael S. Tsirkin " use 'vhostfd=h' to connect to an already opened vhost net device\n" 10440df0ff6dSMark McLoughlin#endif 10455824d651Sblueswir1 "-net socket[,vlan=n][,name=str][,fd=h][,listen=[host]:port][,connect=host:port]\n" 10465824d651Sblueswir1 " connect the vlan 'n' to another VLAN using a socket connection\n" 10475824d651Sblueswir1 "-net socket[,vlan=n][,name=str][,fd=h][,mcast=maddr:port]\n" 10485824d651Sblueswir1 " connect the vlan 'n' to multicast maddr and port\n" 10495824d651Sblueswir1#ifdef CONFIG_VDE 10505824d651Sblueswir1 "-net vde[,vlan=n][,name=str][,sock=socketpath][,port=n][,group=groupname][,mode=octalmode]\n" 10515824d651Sblueswir1 " connect the vlan 'n' to port 'n' of a vde switch running\n" 10525824d651Sblueswir1 " on host and listening for incoming connections on 'socketpath'.\n" 10535824d651Sblueswir1 " Use group 'groupname' and mode 'octalmode' to change default\n" 10545824d651Sblueswir1 " ownership and permissions for communication port.\n" 10555824d651Sblueswir1#endif 1056bb9ea79eSaliguori "-net dump[,vlan=n][,file=f][,len=n]\n" 1057bb9ea79eSaliguori " dump traffic on vlan 'n' to file 'f' (max n bytes per packet)\n" 1058ca1a8a06SBruce Rogers "-net none use it alone to have zero network devices. If no -net option\n" 1059ad96090aSBlue Swirl " is provided, the default is '-net nic -net user'\n", QEMU_ARCH_ALL) 1060a1ea458fSMark McLoughlinDEF("netdev", HAS_ARG, QEMU_OPTION_netdev, 1061a1ea458fSMark McLoughlin "-netdev [" 1062a1ea458fSMark McLoughlin#ifdef CONFIG_SLIRP 1063a1ea458fSMark McLoughlin "user|" 1064a1ea458fSMark McLoughlin#endif 1065a1ea458fSMark McLoughlin "tap|" 1066a1ea458fSMark McLoughlin#ifdef CONFIG_VDE 1067a1ea458fSMark McLoughlin "vde|" 1068a1ea458fSMark McLoughlin#endif 1069ad96090aSBlue Swirl "socket],id=str[,option][,option][,...]\n", QEMU_ARCH_ALL) 10705824d651Sblueswir1STEXI 1071ffe6370cSMichael S. Tsirkin@item -net nic[,vlan=@var{n}][,macaddr=@var{mac}][,model=@var{type}] [,name=@var{name}][,addr=@var{addr}][,vectors=@var{v}] 10726616b2adSStefan Weil@findex -net 10735824d651Sblueswir1Create a new Network Interface Card and connect it to VLAN @var{n} (@var{n} 10740d6b0b1dSAnthony Liguori= 0 is the default). The NIC is an e1000 by default on the PC 10755607c388SMarkus Armbrustertarget. Optionally, the MAC address can be changed to @var{mac}, the 10765607c388SMarkus Armbrusterdevice address set to @var{addr} (PCI cards only), 1077ffe6370cSMichael S. Tsirkinand a @var{name} can be assigned for use in monitor commands. 1078ffe6370cSMichael S. TsirkinOptionally, for PCI cards, you can specify the number @var{v} of MSI-X vectors 1079ffe6370cSMichael S. Tsirkinthat the card should have; this option currently only affects virtio cards; set 1080ffe6370cSMichael S. Tsirkin@var{v} = 0 to disable MSI-X. If no @option{-net} option is specified, a single 1081ffe6370cSMichael S. TsirkinNIC is created. Qemu can emulate several different models of network card. 10825824d651Sblueswir1Valid values for @var{type} are 1083ffe6370cSMichael S. Tsirkin@code{virtio}, @code{i82551}, @code{i82557b}, @code{i82559er}, 10845824d651Sblueswir1@code{ne2k_pci}, @code{ne2k_isa}, @code{pcnet}, @code{rtl8139}, 10855824d651Sblueswir1@code{e1000}, @code{smc91c111}, @code{lance} and @code{mcf_fec}. 10865824d651Sblueswir1Not all devices are supported on all targets. Use -net nic,model=? 10875824d651Sblueswir1for a list of available devices for your target. 10885824d651Sblueswir1 1089ad196a9dSJan Kiszka@item -net user[,@var{option}][,@var{option}][,...] 10905824d651Sblueswir1Use the user mode network stack which requires no administrator 1091ad196a9dSJan Kiszkaprivilege to run. Valid options are: 10925824d651Sblueswir1 1093b3f046c2SKevin Wolf@table @option 1094ad196a9dSJan Kiszka@item vlan=@var{n} 1095ad196a9dSJan KiszkaConnect user mode stack to VLAN @var{n} (@var{n} = 0 is the default). 1096ad196a9dSJan Kiszka 1097ad196a9dSJan Kiszka@item name=@var{name} 1098ad196a9dSJan KiszkaAssign symbolic name for use in monitor commands. 1099ad196a9dSJan Kiszka 1100c92ef6a2SJan Kiszka@item net=@var{addr}[/@var{mask}] 1101c92ef6a2SJan KiszkaSet IP network address the guest will see. Optionally specify the netmask, 1102c92ef6a2SJan Kiszkaeither in the form a.b.c.d or as number of valid top-most bits. Default is 1103c92ef6a2SJan Kiszka10.0.2.0/8. 1104c92ef6a2SJan Kiszka 1105c92ef6a2SJan Kiszka@item host=@var{addr} 1106c92ef6a2SJan KiszkaSpecify the guest-visible address of the host. Default is the 2nd IP in the 1107c92ef6a2SJan Kiszkaguest network, i.e. x.x.x.2. 1108ad196a9dSJan Kiszka 1109ad196a9dSJan Kiszka@item restrict=y|yes|n|no 1110ad196a9dSJan KiszkaIf this options is enabled, the guest will be isolated, i.e. it will not be 1111ad196a9dSJan Kiszkaable to contact the host and no guest IP packets will be routed over the host 1112ad196a9dSJan Kiszkato the outside. This option does not affect explicitly set forwarding rule. 1113ad196a9dSJan Kiszka 1114ad196a9dSJan Kiszka@item hostname=@var{name} 1115ad196a9dSJan KiszkaSpecifies the client hostname reported by the builtin DHCP server. 1116ad196a9dSJan Kiszka 1117c92ef6a2SJan Kiszka@item dhcpstart=@var{addr} 1118c92ef6a2SJan KiszkaSpecify the first of the 16 IPs the built-in DHCP server can assign. Default 1119c92ef6a2SJan Kiszkais the 16th to 31st IP in the guest network, i.e. x.x.x.16 to x.x.x.31. 1120c92ef6a2SJan Kiszka 1121c92ef6a2SJan Kiszka@item dns=@var{addr} 1122c92ef6a2SJan KiszkaSpecify the guest-visible address of the virtual nameserver. The address must 1123c92ef6a2SJan Kiszkabe different from the host address. Default is the 3rd IP in the guest network, 1124c92ef6a2SJan Kiszkai.e. x.x.x.3. 1125c92ef6a2SJan Kiszka 1126ad196a9dSJan Kiszka@item tftp=@var{dir} 1127ad196a9dSJan KiszkaWhen using the user mode network stack, activate a built-in TFTP 1128ad196a9dSJan Kiszkaserver. The files in @var{dir} will be exposed as the root of a TFTP server. 1129ad196a9dSJan KiszkaThe TFTP client on the guest must be configured in binary mode (use the command 1130c92ef6a2SJan Kiszka@code{bin} of the Unix TFTP client). 1131ad196a9dSJan Kiszka 1132ad196a9dSJan Kiszka@item bootfile=@var{file} 1133ad196a9dSJan KiszkaWhen using the user mode network stack, broadcast @var{file} as the BOOTP 1134ad196a9dSJan Kiszkafilename. In conjunction with @option{tftp}, this can be used to network boot 1135ad196a9dSJan Kiszkaa guest from a local directory. 1136ad196a9dSJan Kiszka 1137ad196a9dSJan KiszkaExample (using pxelinux): 1138ad196a9dSJan Kiszka@example 1139ad196a9dSJan Kiszkaqemu -hda linux.img -boot n -net user,tftp=/path/to/tftp/files,bootfile=/pxelinux.0 1140ad196a9dSJan Kiszka@end example 1141ad196a9dSJan Kiszka 1142c92ef6a2SJan Kiszka@item smb=@var{dir}[,smbserver=@var{addr}] 1143ad196a9dSJan KiszkaWhen using the user mode network stack, activate a built-in SMB 1144ad196a9dSJan Kiszkaserver so that Windows OSes can access to the host files in @file{@var{dir}} 1145c92ef6a2SJan Kiszkatransparently. The IP address of the SMB server can be set to @var{addr}. By 1146c92ef6a2SJan Kiszkadefault the 4th IP in the guest network is used, i.e. x.x.x.4. 1147ad196a9dSJan Kiszka 1148ad196a9dSJan KiszkaIn the guest Windows OS, the line: 1149ad196a9dSJan Kiszka@example 1150ad196a9dSJan Kiszka10.0.2.4 smbserver 1151ad196a9dSJan Kiszka@end example 1152ad196a9dSJan Kiszkamust be added in the file @file{C:\WINDOWS\LMHOSTS} (for windows 9x/Me) 1153ad196a9dSJan Kiszkaor @file{C:\WINNT\SYSTEM32\DRIVERS\ETC\LMHOSTS} (Windows NT/2000). 1154ad196a9dSJan Kiszka 1155ad196a9dSJan KiszkaThen @file{@var{dir}} can be accessed in @file{\\smbserver\qemu}. 1156ad196a9dSJan Kiszka 1157ad196a9dSJan KiszkaNote that a SAMBA server must be installed on the host OS in 1158ad196a9dSJan Kiszka@file{/usr/sbin/smbd}. QEMU was tested successfully with smbd versions from 1159ad196a9dSJan KiszkaRed Hat 9, Fedora Core 3 and OpenSUSE 11.x. 1160ad196a9dSJan Kiszka 11613c6a0580SJan Kiszka@item hostfwd=[tcp|udp]:[@var{hostaddr}]:@var{hostport}-[@var{guestaddr}]:@var{guestport} 1162c92ef6a2SJan KiszkaRedirect incoming TCP or UDP connections to the host port @var{hostport} to 1163c92ef6a2SJan Kiszkathe guest IP address @var{guestaddr} on guest port @var{guestport}. If 1164c92ef6a2SJan Kiszka@var{guestaddr} is not specified, its value is x.x.x.15 (default first address 11653c6a0580SJan Kiszkagiven by the built-in DHCP server). By specifying @var{hostaddr}, the rule can 11663c6a0580SJan Kiszkabe bound to a specific host interface. If no connection type is set, TCP is 1167c92ef6a2SJan Kiszkaused. This option can be given multiple times. 1168ad196a9dSJan Kiszka 1169ad196a9dSJan KiszkaFor example, to redirect host X11 connection from screen 1 to guest 1170ad196a9dSJan Kiszkascreen 0, use the following: 1171ad196a9dSJan Kiszka 1172ad196a9dSJan Kiszka@example 1173ad196a9dSJan Kiszka# on the host 11743c6a0580SJan Kiszkaqemu -net user,hostfwd=tcp:127.0.0.1:6001-:6000 [...] 1175ad196a9dSJan Kiszka# this host xterm should open in the guest X11 server 1176ad196a9dSJan Kiszkaxterm -display :1 1177ad196a9dSJan Kiszka@end example 1178ad196a9dSJan Kiszka 1179ad196a9dSJan KiszkaTo redirect telnet connections from host port 5555 to telnet port on 1180ad196a9dSJan Kiszkathe guest, use the following: 1181ad196a9dSJan Kiszka 1182ad196a9dSJan Kiszka@example 1183ad196a9dSJan Kiszka# on the host 1184aa375206SAurelien Jarnoqemu -net user,hostfwd=tcp::5555-:23 [...] 1185ad196a9dSJan Kiszkatelnet localhost 5555 1186ad196a9dSJan Kiszka@end example 1187ad196a9dSJan Kiszka 1188ad196a9dSJan KiszkaThen when you use on the host @code{telnet localhost 5555}, you 1189ad196a9dSJan Kiszkaconnect to the guest telnet server. 1190ad196a9dSJan Kiszka 1191c92ef6a2SJan Kiszka@item guestfwd=[tcp]:@var{server}:@var{port}-@var{dev} 11923c6a0580SJan KiszkaForward guest TCP connections to the IP address @var{server} on port @var{port} 11933c6a0580SJan Kiszkato the character device @var{dev}. This option can be given multiple times. 1194ad196a9dSJan Kiszka 1195ad196a9dSJan Kiszka@end table 1196ad196a9dSJan Kiszka 1197ad196a9dSJan KiszkaNote: Legacy stand-alone options -tftp, -bootp, -smb and -redir are still 1198ad196a9dSJan Kiszkaprocessed and applied to -net user. Mixing them with the new configuration 1199ad196a9dSJan Kiszkasyntax gives undefined results. Their use for new applications is discouraged 1200ad196a9dSJan Kiszkaas they will be removed from future versions. 12015824d651Sblueswir1 12025824d651Sblueswir1@item -net tap[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}][,ifname=@var{name}] [,script=@var{file}][,downscript=@var{dfile}] 12035824d651Sblueswir1Connect the host TAP network interface @var{name} to VLAN @var{n}, use 12045824d651Sblueswir1the network script @var{file} to configure it and the network script 12055824d651Sblueswir1@var{dfile} to deconfigure it. If @var{name} is not provided, the OS 12065824d651Sblueswir1automatically provides one. @option{fd}=@var{h} can be used to specify 12075824d651Sblueswir1the handle of an already opened host TAP interface. The default network 12085824d651Sblueswir1configure script is @file{/etc/qemu-ifup} and the default network 12095824d651Sblueswir1deconfigure script is @file{/etc/qemu-ifdown}. Use @option{script=no} 12105824d651Sblueswir1or @option{downscript=no} to disable script execution. Example: 12115824d651Sblueswir1 12125824d651Sblueswir1@example 12135824d651Sblueswir1qemu linux.img -net nic -net tap 12145824d651Sblueswir1@end example 12155824d651Sblueswir1 12165824d651Sblueswir1More complicated example (two NICs, each one connected to a TAP device) 12175824d651Sblueswir1@example 12185824d651Sblueswir1qemu linux.img -net nic,vlan=0 -net tap,vlan=0,ifname=tap0 \ 12195824d651Sblueswir1 -net nic,vlan=1 -net tap,vlan=1,ifname=tap1 12205824d651Sblueswir1@end example 12215824d651Sblueswir1 12225824d651Sblueswir1@item -net socket[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}] [,listen=[@var{host}]:@var{port}][,connect=@var{host}:@var{port}] 12235824d651Sblueswir1 12245824d651Sblueswir1Connect the VLAN @var{n} to a remote VLAN in another QEMU virtual 12255824d651Sblueswir1machine using a TCP socket connection. If @option{listen} is 12265824d651Sblueswir1specified, QEMU waits for incoming connections on @var{port} 12275824d651Sblueswir1(@var{host} is optional). @option{connect} is used to connect to 12285824d651Sblueswir1another QEMU instance using the @option{listen} option. @option{fd}=@var{h} 12295824d651Sblueswir1specifies an already opened TCP socket. 12305824d651Sblueswir1 12315824d651Sblueswir1Example: 12325824d651Sblueswir1@example 12335824d651Sblueswir1# launch a first QEMU instance 12345824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \ 12355824d651Sblueswir1 -net socket,listen=:1234 12365824d651Sblueswir1# connect the VLAN 0 of this instance to the VLAN 0 12375824d651Sblueswir1# of the first instance 12385824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:57 \ 12395824d651Sblueswir1 -net socket,connect=127.0.0.1:1234 12405824d651Sblueswir1@end example 12415824d651Sblueswir1 12425824d651Sblueswir1@item -net socket[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}] [,mcast=@var{maddr}:@var{port}] 12435824d651Sblueswir1 12445824d651Sblueswir1Create a VLAN @var{n} shared with another QEMU virtual 12455824d651Sblueswir1machines using a UDP multicast socket, effectively making a bus for 12465824d651Sblueswir1every QEMU with same multicast address @var{maddr} and @var{port}. 12475824d651Sblueswir1NOTES: 12485824d651Sblueswir1@enumerate 12495824d651Sblueswir1@item 12505824d651Sblueswir1Several QEMU can be running on different hosts and share same bus (assuming 12515824d651Sblueswir1correct multicast setup for these hosts). 12525824d651Sblueswir1@item 12535824d651Sblueswir1mcast support is compatible with User Mode Linux (argument @option{eth@var{N}=mcast}), see 12545824d651Sblueswir1@url{http://user-mode-linux.sf.net}. 12555824d651Sblueswir1@item 12565824d651Sblueswir1Use @option{fd=h} to specify an already opened UDP multicast socket. 12575824d651Sblueswir1@end enumerate 12585824d651Sblueswir1 12595824d651Sblueswir1Example: 12605824d651Sblueswir1@example 12615824d651Sblueswir1# launch one QEMU instance 12625824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \ 12635824d651Sblueswir1 -net socket,mcast=230.0.0.1:1234 12645824d651Sblueswir1# launch another QEMU instance on same "bus" 12655824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:57 \ 12665824d651Sblueswir1 -net socket,mcast=230.0.0.1:1234 12675824d651Sblueswir1# launch yet another QEMU instance on same "bus" 12685824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:58 \ 12695824d651Sblueswir1 -net socket,mcast=230.0.0.1:1234 12705824d651Sblueswir1@end example 12715824d651Sblueswir1 12725824d651Sblueswir1Example (User Mode Linux compat.): 12735824d651Sblueswir1@example 12745824d651Sblueswir1# launch QEMU instance (note mcast address selected 12755824d651Sblueswir1# is UML's default) 12765824d651Sblueswir1qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \ 12775824d651Sblueswir1 -net socket,mcast=239.192.168.1:1102 12785824d651Sblueswir1# launch UML 12795824d651Sblueswir1/path/to/linux ubd0=/path/to/root_fs eth0=mcast 12805824d651Sblueswir1@end example 12815824d651Sblueswir1 12825824d651Sblueswir1@item -net vde[,vlan=@var{n}][,name=@var{name}][,sock=@var{socketpath}] [,port=@var{n}][,group=@var{groupname}][,mode=@var{octalmode}] 12835824d651Sblueswir1Connect VLAN @var{n} to PORT @var{n} of a vde switch running on host and 12845824d651Sblueswir1listening for incoming connections on @var{socketpath}. Use GROUP @var{groupname} 12855824d651Sblueswir1and MODE @var{octalmode} to change default ownership and permissions for 12865824d651Sblueswir1communication port. This option is available only if QEMU has been compiled 12875824d651Sblueswir1with vde support enabled. 12885824d651Sblueswir1 12895824d651Sblueswir1Example: 12905824d651Sblueswir1@example 12915824d651Sblueswir1# launch vde switch 12925824d651Sblueswir1vde_switch -F -sock /tmp/myswitch 12935824d651Sblueswir1# launch QEMU instance 12945824d651Sblueswir1qemu linux.img -net nic -net vde,sock=/tmp/myswitch 12955824d651Sblueswir1@end example 12965824d651Sblueswir1 1297bb9ea79eSaliguori@item -net dump[,vlan=@var{n}][,file=@var{file}][,len=@var{len}] 1298bb9ea79eSaliguoriDump network traffic on VLAN @var{n} to file @var{file} (@file{qemu-vlan0.pcap} by default). 1299bb9ea79eSaliguoriAt most @var{len} bytes (64k by default) per packet are stored. The file format is 1300bb9ea79eSaliguorilibpcap, so it can be analyzed with tools such as tcpdump or Wireshark. 1301bb9ea79eSaliguori 13025824d651Sblueswir1@item -net none 13035824d651Sblueswir1Indicate that no network devices should be configured. It is used to 13045824d651Sblueswir1override the default configuration (@option{-net nic -net user}) which 13055824d651Sblueswir1is activated if no @option{-net} options are provided. 13065824d651Sblueswir1 13075824d651Sblueswir1@end table 13085824d651Sblueswir1ETEXI 13095824d651Sblueswir1 13107273a2dbSMatthew BoothDEFHEADING() 13117273a2dbSMatthew Booth 13127273a2dbSMatthew BoothDEFHEADING(Character device options:) 13137273a2dbSMatthew Booth 13147273a2dbSMatthew BoothDEF("chardev", HAS_ARG, QEMU_OPTION_chardev, 131597331287SJan Kiszka "-chardev null,id=id[,mux=on|off]\n" 13167273a2dbSMatthew Booth "-chardev socket,id=id[,host=host],port=host[,to=to][,ipv4][,ipv6][,nodelay]\n" 131797331287SJan Kiszka " [,server][,nowait][,telnet][,mux=on|off] (tcp)\n" 131897331287SJan Kiszka "-chardev socket,id=id,path=path[,server][,nowait][,telnet],[mux=on|off] (unix)\n" 13197273a2dbSMatthew Booth "-chardev udp,id=id[,host=host],port=port[,localaddr=localaddr]\n" 132097331287SJan Kiszka " [,localport=localport][,ipv4][,ipv6][,mux=on|off]\n" 132197331287SJan Kiszka "-chardev msmouse,id=id[,mux=on|off]\n" 13227273a2dbSMatthew Booth "-chardev vc,id=id[[,width=width][,height=height]][[,cols=cols][,rows=rows]]\n" 132397331287SJan Kiszka " [,mux=on|off]\n" 132497331287SJan Kiszka "-chardev file,id=id,path=path[,mux=on|off]\n" 132597331287SJan Kiszka "-chardev pipe,id=id,path=path[,mux=on|off]\n" 13267273a2dbSMatthew Booth#ifdef _WIN32 132797331287SJan Kiszka "-chardev console,id=id[,mux=on|off]\n" 132897331287SJan Kiszka "-chardev serial,id=id,path=path[,mux=on|off]\n" 13297273a2dbSMatthew Booth#else 133097331287SJan Kiszka "-chardev pty,id=id[,mux=on|off]\n" 1331b7fdb3abSAurelien Jarno "-chardev stdio,id=id[,mux=on|off][,signal=on|off]\n" 13327273a2dbSMatthew Booth#endif 13337273a2dbSMatthew Booth#ifdef CONFIG_BRLAPI 133497331287SJan Kiszka "-chardev braille,id=id[,mux=on|off]\n" 13357273a2dbSMatthew Booth#endif 13367273a2dbSMatthew Booth#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ 13377273a2dbSMatthew Booth || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) 133897331287SJan Kiszka "-chardev tty,id=id,path=path[,mux=on|off]\n" 13397273a2dbSMatthew Booth#endif 13407273a2dbSMatthew Booth#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) 134197331287SJan Kiszka "-chardev parport,id=id,path=path[,mux=on|off]\n" 13427273a2dbSMatthew Booth#endif 1343ad96090aSBlue Swirl , QEMU_ARCH_ALL 13447273a2dbSMatthew Booth) 13457273a2dbSMatthew Booth 13467273a2dbSMatthew BoothSTEXI 13477273a2dbSMatthew Booth 13487273a2dbSMatthew BoothThe general form of a character device option is: 13497273a2dbSMatthew Booth@table @option 13507273a2dbSMatthew Booth 135197331287SJan Kiszka@item -chardev @var{backend} ,id=@var{id} [,mux=on|off] [,@var{options}] 13526616b2adSStefan Weil@findex -chardev 13537273a2dbSMatthew BoothBackend is one of: 13547273a2dbSMatthew Booth@option{null}, 13557273a2dbSMatthew Booth@option{socket}, 13567273a2dbSMatthew Booth@option{udp}, 13577273a2dbSMatthew Booth@option{msmouse}, 13587273a2dbSMatthew Booth@option{vc}, 13597273a2dbSMatthew Booth@option{file}, 13607273a2dbSMatthew Booth@option{pipe}, 13617273a2dbSMatthew Booth@option{console}, 13627273a2dbSMatthew Booth@option{serial}, 13637273a2dbSMatthew Booth@option{pty}, 13647273a2dbSMatthew Booth@option{stdio}, 13657273a2dbSMatthew Booth@option{braille}, 13667273a2dbSMatthew Booth@option{tty}, 13677273a2dbSMatthew Booth@option{parport}. 13687273a2dbSMatthew BoothThe specific backend will determine the applicable options. 13697273a2dbSMatthew Booth 13707273a2dbSMatthew BoothAll devices must have an id, which can be any string up to 127 characters long. 13717273a2dbSMatthew BoothIt is used to uniquely identify this device in other command line directives. 13727273a2dbSMatthew Booth 137397331287SJan KiszkaA character device may be used in multiplexing mode by multiple front-ends. 137497331287SJan KiszkaThe key sequence of @key{Control-a} and @key{c} will rotate the input focus 137597331287SJan Kiszkabetween attached front-ends. Specify @option{mux=on} to enable this mode. 137697331287SJan Kiszka 13777273a2dbSMatthew BoothOptions to each backend are described below. 13787273a2dbSMatthew Booth 13797273a2dbSMatthew Booth@item -chardev null ,id=@var{id} 13807273a2dbSMatthew BoothA void device. This device will not emit any data, and will drop any data it 13817273a2dbSMatthew Boothreceives. The null backend does not take any options. 13827273a2dbSMatthew Booth 13837273a2dbSMatthew Booth@item -chardev socket ,id=@var{id} [@var{TCP options} or @var{unix options}] [,server] [,nowait] [,telnet] 13847273a2dbSMatthew Booth 13857273a2dbSMatthew BoothCreate a two-way stream socket, which can be either a TCP or a unix socket. A 13867273a2dbSMatthew Boothunix socket will be created if @option{path} is specified. Behaviour is 13877273a2dbSMatthew Boothundefined if TCP options are specified for a unix socket. 13887273a2dbSMatthew Booth 13897273a2dbSMatthew Booth@option{server} specifies that the socket shall be a listening socket. 13907273a2dbSMatthew Booth 13917273a2dbSMatthew Booth@option{nowait} specifies that QEMU should not block waiting for a client to 13927273a2dbSMatthew Boothconnect to a listening socket. 13937273a2dbSMatthew Booth 13947273a2dbSMatthew Booth@option{telnet} specifies that traffic on the socket should interpret telnet 13957273a2dbSMatthew Boothescape sequences. 13967273a2dbSMatthew Booth 13977273a2dbSMatthew BoothTCP and unix socket options are given below: 13987273a2dbSMatthew Booth 13997273a2dbSMatthew Booth@table @option 14007273a2dbSMatthew Booth 14018d533561SAurelien Jarno@item TCP options: port=@var{port} [,host=@var{host}] [,to=@var{to}] [,ipv4] [,ipv6] [,nodelay] 14027273a2dbSMatthew Booth 14037273a2dbSMatthew Booth@option{host} for a listening socket specifies the local address to be bound. 14047273a2dbSMatthew BoothFor a connecting socket species the remote host to connect to. @option{host} is 14057273a2dbSMatthew Boothoptional for listening sockets. If not specified it defaults to @code{0.0.0.0}. 14067273a2dbSMatthew Booth 14077273a2dbSMatthew Booth@option{port} for a listening socket specifies the local port to be bound. For a 14087273a2dbSMatthew Boothconnecting socket specifies the port on the remote host to connect to. 14097273a2dbSMatthew Booth@option{port} can be given as either a port number or a service name. 14107273a2dbSMatthew Booth@option{port} is required. 14117273a2dbSMatthew Booth 14127273a2dbSMatthew Booth@option{to} is only relevant to listening sockets. If it is specified, and 14137273a2dbSMatthew Booth@option{port} cannot be bound, QEMU will attempt to bind to subsequent ports up 14147273a2dbSMatthew Boothto and including @option{to} until it succeeds. @option{to} must be specified 14157273a2dbSMatthew Boothas a port number. 14167273a2dbSMatthew Booth 14177273a2dbSMatthew Booth@option{ipv4} and @option{ipv6} specify that either IPv4 or IPv6 must be used. 14187273a2dbSMatthew BoothIf neither is specified the socket may use either protocol. 14197273a2dbSMatthew Booth 14207273a2dbSMatthew Booth@option{nodelay} disables the Nagle algorithm. 14217273a2dbSMatthew Booth 14227273a2dbSMatthew Booth@item unix options: path=@var{path} 14237273a2dbSMatthew Booth 14247273a2dbSMatthew Booth@option{path} specifies the local path of the unix socket. @option{path} is 14257273a2dbSMatthew Boothrequired. 14267273a2dbSMatthew Booth 14277273a2dbSMatthew Booth@end table 14287273a2dbSMatthew Booth 14297273a2dbSMatthew Booth@item -chardev udp ,id=@var{id} [,host=@var{host}] ,port=@var{port} [,localaddr=@var{localaddr}] [,localport=@var{localport}] [,ipv4] [,ipv6] 14307273a2dbSMatthew Booth 14317273a2dbSMatthew BoothSends all traffic from the guest to a remote host over UDP. 14327273a2dbSMatthew Booth 14337273a2dbSMatthew Booth@option{host} specifies the remote host to connect to. If not specified it 14347273a2dbSMatthew Boothdefaults to @code{localhost}. 14357273a2dbSMatthew Booth 14367273a2dbSMatthew Booth@option{port} specifies the port on the remote host to connect to. @option{port} 14377273a2dbSMatthew Boothis required. 14387273a2dbSMatthew Booth 14397273a2dbSMatthew Booth@option{localaddr} specifies the local address to bind to. If not specified it 14407273a2dbSMatthew Boothdefaults to @code{0.0.0.0}. 14417273a2dbSMatthew Booth 14427273a2dbSMatthew Booth@option{localport} specifies the local port to bind to. If not specified any 14437273a2dbSMatthew Boothavailable local port will be used. 14447273a2dbSMatthew Booth 14457273a2dbSMatthew Booth@option{ipv4} and @option{ipv6} specify that either IPv4 or IPv6 must be used. 14467273a2dbSMatthew BoothIf neither is specified the device may use either protocol. 14477273a2dbSMatthew Booth 14487273a2dbSMatthew Booth@item -chardev msmouse ,id=@var{id} 14497273a2dbSMatthew Booth 14507273a2dbSMatthew BoothForward QEMU's emulated msmouse events to the guest. @option{msmouse} does not 14517273a2dbSMatthew Boothtake any options. 14527273a2dbSMatthew Booth 14537273a2dbSMatthew Booth@item -chardev vc ,id=@var{id} [[,width=@var{width}] [,height=@var{height}]] [[,cols=@var{cols}] [,rows=@var{rows}]] 14547273a2dbSMatthew Booth 14557273a2dbSMatthew BoothConnect to a QEMU text console. @option{vc} may optionally be given a specific 14567273a2dbSMatthew Boothsize. 14577273a2dbSMatthew Booth 14587273a2dbSMatthew Booth@option{width} and @option{height} specify the width and height respectively of 14597273a2dbSMatthew Booththe console, in pixels. 14607273a2dbSMatthew Booth 14617273a2dbSMatthew Booth@option{cols} and @option{rows} specify that the console be sized to fit a text 14627273a2dbSMatthew Boothconsole with the given dimensions. 14637273a2dbSMatthew Booth 14647273a2dbSMatthew Booth@item -chardev file ,id=@var{id} ,path=@var{path} 14657273a2dbSMatthew Booth 14667273a2dbSMatthew BoothLog all traffic received from the guest to a file. 14677273a2dbSMatthew Booth 14687273a2dbSMatthew Booth@option{path} specifies the path of the file to be opened. This file will be 14697273a2dbSMatthew Boothcreated if it does not already exist, and overwritten if it does. @option{path} 14707273a2dbSMatthew Boothis required. 14717273a2dbSMatthew Booth 14727273a2dbSMatthew Booth@item -chardev pipe ,id=@var{id} ,path=@var{path} 14737273a2dbSMatthew Booth 14747273a2dbSMatthew BoothCreate a two-way connection to the guest. The behaviour differs slightly between 14757273a2dbSMatthew BoothWindows hosts and other hosts: 14767273a2dbSMatthew Booth 14777273a2dbSMatthew BoothOn Windows, a single duplex pipe will be created at 14787273a2dbSMatthew Booth@file{\\.pipe\@option{path}}. 14797273a2dbSMatthew Booth 14807273a2dbSMatthew BoothOn other hosts, 2 pipes will be created called @file{@option{path}.in} and 14817273a2dbSMatthew Booth@file{@option{path}.out}. Data written to @file{@option{path}.in} will be 14827273a2dbSMatthew Boothreceived by the guest. Data written by the guest can be read from 14837273a2dbSMatthew Booth@file{@option{path}.out}. QEMU will not create these fifos, and requires them to 14847273a2dbSMatthew Boothbe present. 14857273a2dbSMatthew Booth 14867273a2dbSMatthew Booth@option{path} forms part of the pipe path as described above. @option{path} is 14877273a2dbSMatthew Boothrequired. 14887273a2dbSMatthew Booth 14897273a2dbSMatthew Booth@item -chardev console ,id=@var{id} 14907273a2dbSMatthew Booth 14917273a2dbSMatthew BoothSend traffic from the guest to QEMU's standard output. @option{console} does not 14927273a2dbSMatthew Boothtake any options. 14937273a2dbSMatthew Booth 14947273a2dbSMatthew Booth@option{console} is only available on Windows hosts. 14957273a2dbSMatthew Booth 14967273a2dbSMatthew Booth@item -chardev serial ,id=@var{id} ,path=@option{path} 14977273a2dbSMatthew Booth 14987273a2dbSMatthew BoothSend traffic from the guest to a serial device on the host. 14997273a2dbSMatthew Booth 15007273a2dbSMatthew Booth@option{serial} is 15017273a2dbSMatthew Boothonly available on Windows hosts. 15027273a2dbSMatthew Booth 15037273a2dbSMatthew Booth@option{path} specifies the name of the serial device to open. 15047273a2dbSMatthew Booth 15057273a2dbSMatthew Booth@item -chardev pty ,id=@var{id} 15067273a2dbSMatthew Booth 15077273a2dbSMatthew BoothCreate a new pseudo-terminal on the host and connect to it. @option{pty} does 15087273a2dbSMatthew Boothnot take any options. 15097273a2dbSMatthew Booth 15107273a2dbSMatthew Booth@option{pty} is not available on Windows hosts. 15117273a2dbSMatthew Booth 1512b7fdb3abSAurelien Jarno@item -chardev stdio ,id=@var{id} [,signal=on|off] 15137273a2dbSMatthew BoothConnect to standard input and standard output of the qemu process. 1514b7fdb3abSAurelien Jarno 1515b7fdb3abSAurelien Jarno@option{signal} controls if signals are enabled on the terminal, that includes 1516b7fdb3abSAurelien Jarnoexiting QEMU with the key sequence @key{Control-c}. This option is enabled by 1517b7fdb3abSAurelien Jarnodefault, use @option{signal=off} to disable it. 1518b7fdb3abSAurelien Jarno 1519b7fdb3abSAurelien Jarno@option{stdio} is not available on Windows hosts. 15207273a2dbSMatthew Booth 15217273a2dbSMatthew Booth@item -chardev braille ,id=@var{id} 15227273a2dbSMatthew Booth 15237273a2dbSMatthew BoothConnect to a local BrlAPI server. @option{braille} does not take any options. 15247273a2dbSMatthew Booth 15257273a2dbSMatthew Booth@item -chardev tty ,id=@var{id} ,path=@var{path} 15267273a2dbSMatthew Booth 15277273a2dbSMatthew BoothConnect to a local tty device. 15287273a2dbSMatthew Booth 15297273a2dbSMatthew Booth@option{tty} is only available on Linux, Sun, FreeBSD, NetBSD, OpenBSD and 15307273a2dbSMatthew BoothDragonFlyBSD hosts. 15317273a2dbSMatthew Booth 15327273a2dbSMatthew Booth@option{path} specifies the path to the tty. @option{path} is required. 15337273a2dbSMatthew Booth 15347273a2dbSMatthew Booth@item -chardev parport ,id=@var{id} ,path=@var{path} 15357273a2dbSMatthew Booth 15367273a2dbSMatthew Booth@option{parport} is only available on Linux, FreeBSD and DragonFlyBSD hosts. 15377273a2dbSMatthew Booth 15387273a2dbSMatthew BoothConnect to a local parallel port. 15397273a2dbSMatthew Booth 15407273a2dbSMatthew Booth@option{path} specifies the path to the parallel port device. @option{path} is 15417273a2dbSMatthew Boothrequired. 15427273a2dbSMatthew Booth 15437273a2dbSMatthew Booth@end table 15447273a2dbSMatthew BoothETEXI 15457273a2dbSMatthew Booth 15467273a2dbSMatthew BoothDEFHEADING() 15477273a2dbSMatthew Booth 15487273a2dbSMatthew BoothDEFHEADING(Bluetooth(R) options:) 15497273a2dbSMatthew Booth 15505824d651Sblueswir1DEF("bt", HAS_ARG, QEMU_OPTION_bt, \ 15515824d651Sblueswir1 "-bt hci,null dumb bluetooth HCI - doesn't respond to commands\n" \ 15525824d651Sblueswir1 "-bt hci,host[:id]\n" \ 15535824d651Sblueswir1 " use host's HCI with the given name\n" \ 15545824d651Sblueswir1 "-bt hci[,vlan=n]\n" \ 15555824d651Sblueswir1 " emulate a standard HCI in virtual scatternet 'n'\n" \ 15565824d651Sblueswir1 "-bt vhci[,vlan=n]\n" \ 15575824d651Sblueswir1 " add host computer to virtual scatternet 'n' using VHCI\n" \ 15585824d651Sblueswir1 "-bt device:dev[,vlan=n]\n" \ 1559ad96090aSBlue Swirl " emulate a bluetooth device 'dev' in scatternet 'n'\n", 1560ad96090aSBlue Swirl QEMU_ARCH_ALL) 15615824d651Sblueswir1STEXI 15625824d651Sblueswir1@table @option 15635824d651Sblueswir1 15645824d651Sblueswir1@item -bt hci[...] 15656616b2adSStefan Weil@findex -bt 15665824d651Sblueswir1Defines the function of the corresponding Bluetooth HCI. -bt options 15675824d651Sblueswir1are matched with the HCIs present in the chosen machine type. For 15685824d651Sblueswir1example when emulating a machine with only one HCI built into it, only 15695824d651Sblueswir1the first @code{-bt hci[...]} option is valid and defines the HCI's 15705824d651Sblueswir1logic. The Transport Layer is decided by the machine type. Currently 15715824d651Sblueswir1the machines @code{n800} and @code{n810} have one HCI and all other 15725824d651Sblueswir1machines have none. 15735824d651Sblueswir1 15745824d651Sblueswir1@anchor{bt-hcis} 15755824d651Sblueswir1The following three types are recognized: 15765824d651Sblueswir1 1577b3f046c2SKevin Wolf@table @option 15785824d651Sblueswir1@item -bt hci,null 15795824d651Sblueswir1(default) The corresponding Bluetooth HCI assumes no internal logic 15805824d651Sblueswir1and will not respond to any HCI commands or emit events. 15815824d651Sblueswir1 15825824d651Sblueswir1@item -bt hci,host[:@var{id}] 15835824d651Sblueswir1(@code{bluez} only) The corresponding HCI passes commands / events 15845824d651Sblueswir1to / from the physical HCI identified by the name @var{id} (default: 15855824d651Sblueswir1@code{hci0}) on the computer running QEMU. Only available on @code{bluez} 15865824d651Sblueswir1capable systems like Linux. 15875824d651Sblueswir1 15885824d651Sblueswir1@item -bt hci[,vlan=@var{n}] 15895824d651Sblueswir1Add a virtual, standard HCI that will participate in the Bluetooth 15905824d651Sblueswir1scatternet @var{n} (default @code{0}). Similarly to @option{-net} 15915824d651Sblueswir1VLANs, devices inside a bluetooth network @var{n} can only communicate 15925824d651Sblueswir1with other devices in the same network (scatternet). 15935824d651Sblueswir1@end table 15945824d651Sblueswir1 15955824d651Sblueswir1@item -bt vhci[,vlan=@var{n}] 15965824d651Sblueswir1(Linux-host only) Create a HCI in scatternet @var{n} (default 0) attached 15975824d651Sblueswir1to the host bluetooth stack instead of to the emulated target. This 15985824d651Sblueswir1allows the host and target machines to participate in a common scatternet 15995824d651Sblueswir1and communicate. Requires the Linux @code{vhci} driver installed. Can 16005824d651Sblueswir1be used as following: 16015824d651Sblueswir1 16025824d651Sblueswir1@example 16035824d651Sblueswir1qemu [...OPTIONS...] -bt hci,vlan=5 -bt vhci,vlan=5 16045824d651Sblueswir1@end example 16055824d651Sblueswir1 16065824d651Sblueswir1@item -bt device:@var{dev}[,vlan=@var{n}] 16075824d651Sblueswir1Emulate a bluetooth device @var{dev} and place it in network @var{n} 16085824d651Sblueswir1(default @code{0}). QEMU can only emulate one type of bluetooth devices 16095824d651Sblueswir1currently: 16105824d651Sblueswir1 1611b3f046c2SKevin Wolf@table @option 16125824d651Sblueswir1@item keyboard 16135824d651Sblueswir1Virtual wireless keyboard implementing the HIDP bluetooth profile. 16145824d651Sblueswir1@end table 16155824d651Sblueswir1@end table 16165824d651Sblueswir1ETEXI 16175824d651Sblueswir1 16185824d651Sblueswir1DEFHEADING() 16195824d651Sblueswir1 16207677f05dSAlexander GrafDEFHEADING(Linux/Multiboot boot specific:) 16215824d651Sblueswir1STEXI 16227677f05dSAlexander Graf 16237677f05dSAlexander GrafWhen using these options, you can use a given Linux or Multiboot 16247677f05dSAlexander Grafkernel without installing it in the disk image. It can be useful 16255824d651Sblueswir1for easier testing of various kernels. 16265824d651Sblueswir1 16275824d651Sblueswir1@table @option 16285824d651Sblueswir1ETEXI 16295824d651Sblueswir1 16305824d651Sblueswir1DEF("kernel", HAS_ARG, QEMU_OPTION_kernel, \ 1631ad96090aSBlue Swirl "-kernel bzImage use 'bzImage' as kernel image\n", QEMU_ARCH_ALL) 16325824d651Sblueswir1STEXI 16335824d651Sblueswir1@item -kernel @var{bzImage} 16346616b2adSStefan Weil@findex -kernel 16357677f05dSAlexander GrafUse @var{bzImage} as kernel image. The kernel can be either a Linux kernel 16367677f05dSAlexander Grafor in multiboot format. 16375824d651Sblueswir1ETEXI 16385824d651Sblueswir1 16395824d651Sblueswir1DEF("append", HAS_ARG, QEMU_OPTION_append, \ 1640ad96090aSBlue Swirl "-append cmdline use 'cmdline' as kernel command line\n", QEMU_ARCH_ALL) 16415824d651Sblueswir1STEXI 16425824d651Sblueswir1@item -append @var{cmdline} 16436616b2adSStefan Weil@findex -append 16445824d651Sblueswir1Use @var{cmdline} as kernel command line 16455824d651Sblueswir1ETEXI 16465824d651Sblueswir1 16475824d651Sblueswir1DEF("initrd", HAS_ARG, QEMU_OPTION_initrd, \ 1648ad96090aSBlue Swirl "-initrd file use 'file' as initial ram disk\n", QEMU_ARCH_ALL) 16495824d651Sblueswir1STEXI 16505824d651Sblueswir1@item -initrd @var{file} 16516616b2adSStefan Weil@findex -initrd 16525824d651Sblueswir1Use @var{file} as initial ram disk. 16537677f05dSAlexander Graf 16547677f05dSAlexander Graf@item -initrd "@var{file1} arg=foo,@var{file2}" 16557677f05dSAlexander Graf 16567677f05dSAlexander GrafThis syntax is only available with multiboot. 16577677f05dSAlexander Graf 16587677f05dSAlexander GrafUse @var{file1} and @var{file2} as modules and pass arg=foo as parameter to the 16597677f05dSAlexander Graffirst module. 16605824d651Sblueswir1ETEXI 16615824d651Sblueswir1 16625824d651Sblueswir1STEXI 16635824d651Sblueswir1@end table 16645824d651Sblueswir1ETEXI 16655824d651Sblueswir1 16665824d651Sblueswir1DEFHEADING() 16675824d651Sblueswir1 16685824d651Sblueswir1DEFHEADING(Debug/Expert options:) 16695824d651Sblueswir1 16705824d651Sblueswir1STEXI 16715824d651Sblueswir1@table @option 16725824d651Sblueswir1ETEXI 16735824d651Sblueswir1 16745824d651Sblueswir1DEF("serial", HAS_ARG, QEMU_OPTION_serial, \ 1675ad96090aSBlue Swirl "-serial dev redirect the serial port to char device 'dev'\n", 1676ad96090aSBlue Swirl QEMU_ARCH_ALL) 16775824d651Sblueswir1STEXI 16785824d651Sblueswir1@item -serial @var{dev} 16796616b2adSStefan Weil@findex -serial 16805824d651Sblueswir1Redirect the virtual serial port to host character device 16815824d651Sblueswir1@var{dev}. The default device is @code{vc} in graphical mode and 16825824d651Sblueswir1@code{stdio} in non graphical mode. 16835824d651Sblueswir1 16845824d651Sblueswir1This option can be used several times to simulate up to 4 serial 16855824d651Sblueswir1ports. 16865824d651Sblueswir1 16875824d651Sblueswir1Use @code{-serial none} to disable all serial ports. 16885824d651Sblueswir1 16895824d651Sblueswir1Available character devices are: 1690b3f046c2SKevin Wolf@table @option 16914e257e5eSKevin Wolf@item vc[:@var{W}x@var{H}] 16925824d651Sblueswir1Virtual console. Optionally, a width and height can be given in pixel with 16935824d651Sblueswir1@example 16945824d651Sblueswir1vc:800x600 16955824d651Sblueswir1@end example 16965824d651Sblueswir1It is also possible to specify width or height in characters: 16975824d651Sblueswir1@example 16985824d651Sblueswir1vc:80Cx24C 16995824d651Sblueswir1@end example 17005824d651Sblueswir1@item pty 17015824d651Sblueswir1[Linux only] Pseudo TTY (a new PTY is automatically allocated) 17025824d651Sblueswir1@item none 17035824d651Sblueswir1No device is allocated. 17045824d651Sblueswir1@item null 17055824d651Sblueswir1void device 17065824d651Sblueswir1@item /dev/XXX 17075824d651Sblueswir1[Linux only] Use host tty, e.g. @file{/dev/ttyS0}. The host serial port 17085824d651Sblueswir1parameters are set according to the emulated ones. 17095824d651Sblueswir1@item /dev/parport@var{N} 17105824d651Sblueswir1[Linux only, parallel port only] Use host parallel port 17115824d651Sblueswir1@var{N}. Currently SPP and EPP parallel port features can be used. 17125824d651Sblueswir1@item file:@var{filename} 17135824d651Sblueswir1Write output to @var{filename}. No character can be read. 17145824d651Sblueswir1@item stdio 17155824d651Sblueswir1[Unix only] standard input/output 17165824d651Sblueswir1@item pipe:@var{filename} 17175824d651Sblueswir1name pipe @var{filename} 17185824d651Sblueswir1@item COM@var{n} 17195824d651Sblueswir1[Windows only] Use host serial port @var{n} 17205824d651Sblueswir1@item udp:[@var{remote_host}]:@var{remote_port}[@@[@var{src_ip}]:@var{src_port}] 17215824d651Sblueswir1This implements UDP Net Console. 17225824d651Sblueswir1When @var{remote_host} or @var{src_ip} are not specified 17235824d651Sblueswir1they default to @code{0.0.0.0}. 17245824d651Sblueswir1When not using a specified @var{src_port} a random port is automatically chosen. 17255824d651Sblueswir1 17265824d651Sblueswir1If you just want a simple readonly console you can use @code{netcat} or 17275824d651Sblueswir1@code{nc}, by starting qemu with: @code{-serial udp::4555} and nc as: 17285824d651Sblueswir1@code{nc -u -l -p 4555}. Any time qemu writes something to that port it 17295824d651Sblueswir1will appear in the netconsole session. 17305824d651Sblueswir1 17315824d651Sblueswir1If you plan to send characters back via netconsole or you want to stop 17325824d651Sblueswir1and start qemu a lot of times, you should have qemu use the same 17335824d651Sblueswir1source port each time by using something like @code{-serial 17345824d651Sblueswir1udp::4555@@:4556} to qemu. Another approach is to use a patched 17355824d651Sblueswir1version of netcat which can listen to a TCP port and send and receive 17365824d651Sblueswir1characters via udp. If you have a patched version of netcat which 17375824d651Sblueswir1activates telnet remote echo and single char transfer, then you can 17385824d651Sblueswir1use the following options to step up a netcat redirector to allow 17395824d651Sblueswir1telnet on port 5555 to access the qemu port. 17405824d651Sblueswir1@table @code 17415824d651Sblueswir1@item Qemu Options: 17425824d651Sblueswir1-serial udp::4555@@:4556 17435824d651Sblueswir1@item netcat options: 17445824d651Sblueswir1-u -P 4555 -L 0.0.0.0:4556 -t -p 5555 -I -T 17455824d651Sblueswir1@item telnet options: 17465824d651Sblueswir1localhost 5555 17475824d651Sblueswir1@end table 17485824d651Sblueswir1 17495824d651Sblueswir1@item tcp:[@var{host}]:@var{port}[,@var{server}][,nowait][,nodelay] 17505824d651Sblueswir1The TCP Net Console has two modes of operation. It can send the serial 17515824d651Sblueswir1I/O to a location or wait for a connection from a location. By default 17525824d651Sblueswir1the TCP Net Console is sent to @var{host} at the @var{port}. If you use 17535824d651Sblueswir1the @var{server} option QEMU will wait for a client socket application 17545824d651Sblueswir1to connect to the port before continuing, unless the @code{nowait} 17555824d651Sblueswir1option was specified. The @code{nodelay} option disables the Nagle buffering 17565824d651Sblueswir1algorithm. If @var{host} is omitted, 0.0.0.0 is assumed. Only 17575824d651Sblueswir1one TCP connection at a time is accepted. You can use @code{telnet} to 17585824d651Sblueswir1connect to the corresponding character device. 17595824d651Sblueswir1@table @code 17605824d651Sblueswir1@item Example to send tcp console to 192.168.0.2 port 4444 17615824d651Sblueswir1-serial tcp:192.168.0.2:4444 17625824d651Sblueswir1@item Example to listen and wait on port 4444 for connection 17635824d651Sblueswir1-serial tcp::4444,server 17645824d651Sblueswir1@item Example to not wait and listen on ip 192.168.0.100 port 4444 17655824d651Sblueswir1-serial tcp:192.168.0.100:4444,server,nowait 17665824d651Sblueswir1@end table 17675824d651Sblueswir1 17685824d651Sblueswir1@item telnet:@var{host}:@var{port}[,server][,nowait][,nodelay] 17695824d651Sblueswir1The telnet protocol is used instead of raw tcp sockets. The options 17705824d651Sblueswir1work the same as if you had specified @code{-serial tcp}. The 17715824d651Sblueswir1difference is that the port acts like a telnet server or client using 17725824d651Sblueswir1telnet option negotiation. This will also allow you to send the 17735824d651Sblueswir1MAGIC_SYSRQ sequence if you use a telnet that supports sending the break 17745824d651Sblueswir1sequence. Typically in unix telnet you do it with Control-] and then 17755824d651Sblueswir1type "send break" followed by pressing the enter key. 17765824d651Sblueswir1 17775824d651Sblueswir1@item unix:@var{path}[,server][,nowait] 17785824d651Sblueswir1A unix domain socket is used instead of a tcp socket. The option works the 17795824d651Sblueswir1same as if you had specified @code{-serial tcp} except the unix domain socket 17805824d651Sblueswir1@var{path} is used for connections. 17815824d651Sblueswir1 17825824d651Sblueswir1@item mon:@var{dev_string} 17835824d651Sblueswir1This is a special option to allow the monitor to be multiplexed onto 17845824d651Sblueswir1another serial port. The monitor is accessed with key sequence of 17855824d651Sblueswir1@key{Control-a} and then pressing @key{c}. See monitor access 17865824d651Sblueswir1@ref{pcsys_keys} in the -nographic section for more keys. 17875824d651Sblueswir1@var{dev_string} should be any one of the serial devices specified 17885824d651Sblueswir1above. An example to multiplex the monitor onto a telnet server 17895824d651Sblueswir1listening on port 4444 would be: 17905824d651Sblueswir1@table @code 17915824d651Sblueswir1@item -serial mon:telnet::4444,server,nowait 17925824d651Sblueswir1@end table 17935824d651Sblueswir1 17945824d651Sblueswir1@item braille 17955824d651Sblueswir1Braille device. This will use BrlAPI to display the braille output on a real 17965824d651Sblueswir1or fake device. 17975824d651Sblueswir1 1798be8b28a9SKevin Wolf@item msmouse 1799be8b28a9SKevin WolfThree button serial mouse. Configure the guest to use Microsoft protocol. 18005824d651Sblueswir1@end table 18015824d651Sblueswir1ETEXI 18025824d651Sblueswir1 18035824d651Sblueswir1DEF("parallel", HAS_ARG, QEMU_OPTION_parallel, \ 1804ad96090aSBlue Swirl "-parallel dev redirect the parallel port to char device 'dev'\n", 1805ad96090aSBlue Swirl QEMU_ARCH_ALL) 18065824d651Sblueswir1STEXI 18075824d651Sblueswir1@item -parallel @var{dev} 18086616b2adSStefan Weil@findex -parallel 18095824d651Sblueswir1Redirect the virtual parallel port to host device @var{dev} (same 18105824d651Sblueswir1devices as the serial port). On Linux hosts, @file{/dev/parportN} can 18115824d651Sblueswir1be used to use hardware devices connected on the corresponding host 18125824d651Sblueswir1parallel port. 18135824d651Sblueswir1 18145824d651Sblueswir1This option can be used several times to simulate up to 3 parallel 18155824d651Sblueswir1ports. 18165824d651Sblueswir1 18175824d651Sblueswir1Use @code{-parallel none} to disable all parallel ports. 18185824d651Sblueswir1ETEXI 18195824d651Sblueswir1 18205824d651Sblueswir1DEF("monitor", HAS_ARG, QEMU_OPTION_monitor, \ 1821ad96090aSBlue Swirl "-monitor dev redirect the monitor to char device 'dev'\n", 1822ad96090aSBlue Swirl QEMU_ARCH_ALL) 18235824d651Sblueswir1STEXI 18244e307fc8SGerd Hoffmann@item -monitor @var{dev} 18256616b2adSStefan Weil@findex -monitor 18265824d651Sblueswir1Redirect the monitor to host device @var{dev} (same devices as the 18275824d651Sblueswir1serial port). 18285824d651Sblueswir1The default device is @code{vc} in graphical mode and @code{stdio} in 18295824d651Sblueswir1non graphical mode. 18305824d651Sblueswir1ETEXI 18316ca5582dSGerd HoffmannDEF("qmp", HAS_ARG, QEMU_OPTION_qmp, \ 1832ad96090aSBlue Swirl "-qmp dev like -monitor but opens in 'control' mode\n", 1833ad96090aSBlue Swirl QEMU_ARCH_ALL) 183495d5f08bSStefan WeilSTEXI 183595d5f08bSStefan Weil@item -qmp @var{dev} 18366616b2adSStefan Weil@findex -qmp 183795d5f08bSStefan WeilLike -monitor but opens in 'control' mode. 183895d5f08bSStefan WeilETEXI 18395824d651Sblueswir1 184022a0e04bSGerd HoffmannDEF("mon", HAS_ARG, QEMU_OPTION_mon, \ 1841ad96090aSBlue Swirl "-mon chardev=[name][,mode=readline|control][,default]\n", QEMU_ARCH_ALL) 184222a0e04bSGerd HoffmannSTEXI 184322a0e04bSGerd Hoffmann@item -mon chardev=[name][,mode=readline|control][,default] 18446616b2adSStefan Weil@findex -mon 184522a0e04bSGerd HoffmannSetup monitor on chardev @var{name}. 184622a0e04bSGerd HoffmannETEXI 184722a0e04bSGerd Hoffmann 1848c9f398e5SH. Peter AnvinDEF("debugcon", HAS_ARG, QEMU_OPTION_debugcon, \ 1849ad96090aSBlue Swirl "-debugcon dev redirect the debug console to char device 'dev'\n", 1850ad96090aSBlue Swirl QEMU_ARCH_ALL) 1851c9f398e5SH. Peter AnvinSTEXI 1852c9f398e5SH. Peter Anvin@item -debugcon @var{dev} 18536616b2adSStefan Weil@findex -debugcon 1854c9f398e5SH. Peter AnvinRedirect the debug console to host device @var{dev} (same devices as the 1855c9f398e5SH. Peter Anvinserial port). The debug console is an I/O port which is typically port 1856c9f398e5SH. Peter Anvin0xe9; writing to that I/O port sends output to this device. 1857c9f398e5SH. Peter AnvinThe default device is @code{vc} in graphical mode and @code{stdio} in 1858c9f398e5SH. Peter Anvinnon graphical mode. 1859c9f398e5SH. Peter AnvinETEXI 1860c9f398e5SH. Peter Anvin 18615824d651Sblueswir1DEF("pidfile", HAS_ARG, QEMU_OPTION_pidfile, \ 1862ad96090aSBlue Swirl "-pidfile file write PID to 'file'\n", QEMU_ARCH_ALL) 18635824d651Sblueswir1STEXI 18645824d651Sblueswir1@item -pidfile @var{file} 18656616b2adSStefan Weil@findex -pidfile 18665824d651Sblueswir1Store the QEMU process PID in @var{file}. It is useful if you launch QEMU 18675824d651Sblueswir1from a script. 18685824d651Sblueswir1ETEXI 18695824d651Sblueswir1 18701b530a6dSaurel32DEF("singlestep", 0, QEMU_OPTION_singlestep, \ 1871ad96090aSBlue Swirl "-singlestep always run in singlestep mode\n", QEMU_ARCH_ALL) 18721b530a6dSaurel32STEXI 18731b530a6dSaurel32@item -singlestep 18746616b2adSStefan Weil@findex -singlestep 18751b530a6dSaurel32Run the emulation in single step mode. 18761b530a6dSaurel32ETEXI 18771b530a6dSaurel32 18785824d651Sblueswir1DEF("S", 0, QEMU_OPTION_S, \ 1879ad96090aSBlue Swirl "-S freeze CPU at startup (use 'c' to start execution)\n", 1880ad96090aSBlue Swirl QEMU_ARCH_ALL) 18815824d651Sblueswir1STEXI 18825824d651Sblueswir1@item -S 18836616b2adSStefan Weil@findex -S 18845824d651Sblueswir1Do not start CPU at startup (you must type 'c' in the monitor). 18855824d651Sblueswir1ETEXI 18865824d651Sblueswir1 188759030a8cSaliguoriDEF("gdb", HAS_ARG, QEMU_OPTION_gdb, \ 1888ad96090aSBlue Swirl "-gdb dev wait for gdb connection on 'dev'\n", QEMU_ARCH_ALL) 18895824d651Sblueswir1STEXI 189059030a8cSaliguori@item -gdb @var{dev} 18916616b2adSStefan Weil@findex -gdb 189259030a8cSaliguoriWait for gdb connection on device @var{dev} (@pxref{gdb_usage}). Typical 189359030a8cSaliguoriconnections will likely be TCP-based, but also UDP, pseudo TTY, or even 189459030a8cSaliguoristdio are reasonable use case. The latter is allowing to start qemu from 189559030a8cSaliguoriwithin gdb and establish the connection via a pipe: 189659030a8cSaliguori@example 189759030a8cSaliguori(gdb) target remote | exec qemu -gdb stdio ... 189859030a8cSaliguori@end example 18995824d651Sblueswir1ETEXI 19005824d651Sblueswir1 190159030a8cSaliguoriDEF("s", 0, QEMU_OPTION_s, \ 1902ad96090aSBlue Swirl "-s shorthand for -gdb tcp::" DEFAULT_GDBSTUB_PORT "\n", 1903ad96090aSBlue Swirl QEMU_ARCH_ALL) 19045824d651Sblueswir1STEXI 190559030a8cSaliguori@item -s 19066616b2adSStefan Weil@findex -s 190759030a8cSaliguoriShorthand for -gdb tcp::1234, i.e. open a gdbserver on TCP port 1234 190859030a8cSaliguori(@pxref{gdb_usage}). 19095824d651Sblueswir1ETEXI 19105824d651Sblueswir1 19115824d651Sblueswir1DEF("d", HAS_ARG, QEMU_OPTION_d, \ 1912ad96090aSBlue Swirl "-d item1,... output log to /tmp/qemu.log (use -d ? for a list of log items)\n", 1913ad96090aSBlue Swirl QEMU_ARCH_ALL) 19145824d651Sblueswir1STEXI 19155824d651Sblueswir1@item -d 19166616b2adSStefan Weil@findex -d 19175824d651Sblueswir1Output log in /tmp/qemu.log 19185824d651Sblueswir1ETEXI 19195824d651Sblueswir1 19205824d651Sblueswir1DEF("hdachs", HAS_ARG, QEMU_OPTION_hdachs, \ 19215824d651Sblueswir1 "-hdachs c,h,s[,t]\n" \ 19225824d651Sblueswir1 " force hard disk 0 physical geometry and the optional BIOS\n" \ 1923ad96090aSBlue Swirl " translation (t=none or lba) (usually qemu can guess them)\n", 1924ad96090aSBlue Swirl QEMU_ARCH_ALL) 19255824d651Sblueswir1STEXI 19265824d651Sblueswir1@item -hdachs @var{c},@var{h},@var{s},[,@var{t}] 19276616b2adSStefan Weil@findex -hdachs 19285824d651Sblueswir1Force hard disk 0 physical geometry (1 <= @var{c} <= 16383, 1 <= 19295824d651Sblueswir1@var{h} <= 16, 1 <= @var{s} <= 63) and optionally force the BIOS 19305824d651Sblueswir1translation mode (@var{t}=none, lba or auto). Usually QEMU can guess 19315824d651Sblueswir1all those parameters. This option is useful for old MS-DOS disk 19325824d651Sblueswir1images. 19335824d651Sblueswir1ETEXI 19345824d651Sblueswir1 19355824d651Sblueswir1DEF("L", HAS_ARG, QEMU_OPTION_L, \ 1936ad96090aSBlue Swirl "-L path set the directory for the BIOS, VGA BIOS and keymaps\n", 1937ad96090aSBlue Swirl QEMU_ARCH_ALL) 19385824d651Sblueswir1STEXI 19395824d651Sblueswir1@item -L @var{path} 19406616b2adSStefan Weil@findex -L 19415824d651Sblueswir1Set the directory for the BIOS, VGA BIOS and keymaps. 19425824d651Sblueswir1ETEXI 19435824d651Sblueswir1 19445824d651Sblueswir1DEF("bios", HAS_ARG, QEMU_OPTION_bios, \ 1945ad96090aSBlue Swirl "-bios file set the filename for the BIOS\n", QEMU_ARCH_ALL) 19465824d651Sblueswir1STEXI 19475824d651Sblueswir1@item -bios @var{file} 19486616b2adSStefan Weil@findex -bios 19495824d651Sblueswir1Set the filename for the BIOS. 19505824d651Sblueswir1ETEXI 19515824d651Sblueswir1 19525824d651Sblueswir1DEF("enable-kvm", 0, QEMU_OPTION_enable_kvm, \ 1953ad96090aSBlue Swirl "-enable-kvm enable KVM full virtualization support\n", QEMU_ARCH_ALL) 19545824d651Sblueswir1STEXI 19555824d651Sblueswir1@item -enable-kvm 19566616b2adSStefan Weil@findex -enable-kvm 19575824d651Sblueswir1Enable KVM full virtualization support. This option is only available 19585824d651Sblueswir1if KVM support is enabled when compiling. 19595824d651Sblueswir1ETEXI 19605824d651Sblueswir1 1961e37630caSaliguoriDEF("xen-domid", HAS_ARG, QEMU_OPTION_xen_domid, 1962ad96090aSBlue Swirl "-xen-domid id specify xen guest domain id\n", QEMU_ARCH_ALL) 1963e37630caSaliguoriDEF("xen-create", 0, QEMU_OPTION_xen_create, 1964e37630caSaliguori "-xen-create create domain using xen hypercalls, bypassing xend\n" 1965ad96090aSBlue Swirl " warning: should not be used when xend is in use\n", 1966ad96090aSBlue Swirl QEMU_ARCH_ALL) 1967e37630caSaliguoriDEF("xen-attach", 0, QEMU_OPTION_xen_attach, 1968e37630caSaliguori "-xen-attach attach to existing xen domain\n" 1969ad96090aSBlue Swirl " xend will use this when starting qemu\n", 1970ad96090aSBlue Swirl QEMU_ARCH_ALL) 197195d5f08bSStefan WeilSTEXI 197295d5f08bSStefan Weil@item -xen-domid @var{id} 19736616b2adSStefan Weil@findex -xen-domid 197495d5f08bSStefan WeilSpecify xen guest domain @var{id} (XEN only). 197595d5f08bSStefan Weil@item -xen-create 19766616b2adSStefan Weil@findex -xen-create 197795d5f08bSStefan WeilCreate domain using xen hypercalls, bypassing xend. 197895d5f08bSStefan WeilWarning: should not be used when xend is in use (XEN only). 197995d5f08bSStefan Weil@item -xen-attach 19806616b2adSStefan Weil@findex -xen-attach 198195d5f08bSStefan WeilAttach to existing xen domain. 198295d5f08bSStefan Weilxend will use this when starting qemu (XEN only). 198395d5f08bSStefan WeilETEXI 1984e37630caSaliguori 19855824d651Sblueswir1DEF("no-reboot", 0, QEMU_OPTION_no_reboot, \ 1986ad96090aSBlue Swirl "-no-reboot exit instead of rebooting\n", QEMU_ARCH_ALL) 19875824d651Sblueswir1STEXI 19885824d651Sblueswir1@item -no-reboot 19896616b2adSStefan Weil@findex -no-reboot 19905824d651Sblueswir1Exit instead of rebooting. 19915824d651Sblueswir1ETEXI 19925824d651Sblueswir1 19935824d651Sblueswir1DEF("no-shutdown", 0, QEMU_OPTION_no_shutdown, \ 1994ad96090aSBlue Swirl "-no-shutdown stop before shutdown\n", QEMU_ARCH_ALL) 19955824d651Sblueswir1STEXI 19965824d651Sblueswir1@item -no-shutdown 19976616b2adSStefan Weil@findex -no-shutdown 19985824d651Sblueswir1Don't exit QEMU on guest shutdown, but instead only stop the emulation. 19995824d651Sblueswir1This allows for instance switching to monitor to commit changes to the 20005824d651Sblueswir1disk image. 20015824d651Sblueswir1ETEXI 20025824d651Sblueswir1 20035824d651Sblueswir1DEF("loadvm", HAS_ARG, QEMU_OPTION_loadvm, \ 20045824d651Sblueswir1 "-loadvm [tag|id]\n" \ 2005ad96090aSBlue Swirl " start right away with a saved state (loadvm in monitor)\n", 2006ad96090aSBlue Swirl QEMU_ARCH_ALL) 20075824d651Sblueswir1STEXI 20085824d651Sblueswir1@item -loadvm @var{file} 20096616b2adSStefan Weil@findex -loadvm 20105824d651Sblueswir1Start right away with a saved state (@code{loadvm} in monitor) 20115824d651Sblueswir1ETEXI 20125824d651Sblueswir1 20135824d651Sblueswir1#ifndef _WIN32 20145824d651Sblueswir1DEF("daemonize", 0, QEMU_OPTION_daemonize, \ 2015ad96090aSBlue Swirl "-daemonize daemonize QEMU after initializing\n", QEMU_ARCH_ALL) 20165824d651Sblueswir1#endif 20175824d651Sblueswir1STEXI 20185824d651Sblueswir1@item -daemonize 20196616b2adSStefan Weil@findex -daemonize 20205824d651Sblueswir1Daemonize the QEMU process after initialization. QEMU will not detach from 20215824d651Sblueswir1standard IO until it is ready to receive connections on any of its devices. 20225824d651Sblueswir1This option is a useful way for external programs to launch QEMU without having 20235824d651Sblueswir1to cope with initialization race conditions. 20245824d651Sblueswir1ETEXI 20255824d651Sblueswir1 20265824d651Sblueswir1DEF("option-rom", HAS_ARG, QEMU_OPTION_option_rom, \ 2027ad96090aSBlue Swirl "-option-rom rom load a file, rom, into the option ROM space\n", 2028ad96090aSBlue Swirl QEMU_ARCH_ALL) 20295824d651Sblueswir1STEXI 20305824d651Sblueswir1@item -option-rom @var{file} 20316616b2adSStefan Weil@findex -option-rom 20325824d651Sblueswir1Load the contents of @var{file} as an option ROM. 20335824d651Sblueswir1This option is useful to load things like EtherBoot. 20345824d651Sblueswir1ETEXI 20355824d651Sblueswir1 20365824d651Sblueswir1DEF("clock", HAS_ARG, QEMU_OPTION_clock, \ 20375824d651Sblueswir1 "-clock force the use of the given methods for timer alarm.\n" \ 2038ad96090aSBlue Swirl " To see what timers are available use -clock ?\n", 2039ad96090aSBlue Swirl QEMU_ARCH_ALL) 20405824d651Sblueswir1STEXI 20415824d651Sblueswir1@item -clock @var{method} 20426616b2adSStefan Weil@findex -clock 20435824d651Sblueswir1Force the use of the given methods for timer alarm. To see what timers 20445824d651Sblueswir1are available use -clock ?. 20455824d651Sblueswir1ETEXI 20465824d651Sblueswir1 20471ed2fc1fSJan KiszkaHXCOMM Options deprecated by -rtc 2048ad96090aSBlue SwirlDEF("localtime", 0, QEMU_OPTION_localtime, "", QEMU_ARCH_ALL) 2049ad96090aSBlue SwirlDEF("startdate", HAS_ARG, QEMU_OPTION_startdate, "", QEMU_ARCH_ALL) 20505824d651Sblueswir1 20511ed2fc1fSJan KiszkaDEF("rtc", HAS_ARG, QEMU_OPTION_rtc, \ 20526875204cSJan Kiszka "-rtc [base=utc|localtime|date][,clock=host|vm][,driftfix=none|slew]\n" \ 2053ad96090aSBlue Swirl " set the RTC base and clock, enable drift fix for clock ticks (x86 only)\n", 2054ad96090aSBlue Swirl QEMU_ARCH_ALL) 20551ed2fc1fSJan Kiszka 20565824d651Sblueswir1STEXI 20575824d651Sblueswir1 20586875204cSJan Kiszka@item -rtc [base=utc|localtime|@var{date}][,clock=host|vm][,driftfix=none|slew] 20596616b2adSStefan Weil@findex -rtc 20601ed2fc1fSJan KiszkaSpecify @option{base} as @code{utc} or @code{localtime} to let the RTC start at the current 20611ed2fc1fSJan KiszkaUTC or local time, respectively. @code{localtime} is required for correct date in 20621ed2fc1fSJan KiszkaMS-DOS or Windows. To start at a specific point in time, provide @var{date} in the 20631ed2fc1fSJan Kiszkaformat @code{2006-06-17T16:01:21} or @code{2006-06-17}. The default base is UTC. 20641ed2fc1fSJan Kiszka 20656875204cSJan KiszkaBy default the RTC is driven by the host system time. This allows to use the 20666875204cSJan KiszkaRTC as accurate reference clock inside the guest, specifically if the host 20676875204cSJan Kiszkatime is smoothly following an accurate external reference clock, e.g. via NTP. 20686875204cSJan KiszkaIf you want to isolate the guest time from the host, even prevent it from 20696875204cSJan Kiszkaprogressing during suspension, you can set @option{clock} to @code{vm} instead. 20706875204cSJan Kiszka 20711ed2fc1fSJan KiszkaEnable @option{driftfix} (i386 targets only) if you experience time drift problems, 20721ed2fc1fSJan Kiszkaspecifically with Windows' ACPI HAL. This option will try to figure out how 20731ed2fc1fSJan Kiszkamany timer interrupts were not processed by the Windows guest and will 20741ed2fc1fSJan Kiszkare-inject them. 20755824d651Sblueswir1ETEXI 20765824d651Sblueswir1 20775824d651Sblueswir1DEF("icount", HAS_ARG, QEMU_OPTION_icount, \ 20785824d651Sblueswir1 "-icount [N|auto]\n" \ 2079bc14ca24Saliguori " enable virtual instruction counter with 2^N clock ticks per\n" \ 2080ad96090aSBlue Swirl " instruction\n", QEMU_ARCH_ALL) 20815824d651Sblueswir1STEXI 20824e257e5eSKevin Wolf@item -icount [@var{N}|auto] 20836616b2adSStefan Weil@findex -icount 20845824d651Sblueswir1Enable virtual instruction counter. The virtual cpu will execute one 20854e257e5eSKevin Wolfinstruction every 2^@var{N} ns of virtual time. If @code{auto} is specified 20865824d651Sblueswir1then the virtual cpu speed will be automatically adjusted to keep virtual 20875824d651Sblueswir1time within a few seconds of real time. 20885824d651Sblueswir1 20895824d651Sblueswir1Note that while this option can give deterministic behavior, it does not 20905824d651Sblueswir1provide cycle accurate emulation. Modern CPUs contain superscalar out of 20915824d651Sblueswir1order cores with complex cache hierarchies. The number of instructions 20925824d651Sblueswir1executed often has little or no correlation with actual performance. 20935824d651Sblueswir1ETEXI 20945824d651Sblueswir1 20959dd986ccSRichard W.M. JonesDEF("watchdog", HAS_ARG, QEMU_OPTION_watchdog, \ 20969dd986ccSRichard W.M. Jones "-watchdog i6300esb|ib700\n" \ 2097ad96090aSBlue Swirl " enable virtual hardware watchdog [default=none]\n", 2098ad96090aSBlue Swirl QEMU_ARCH_ALL) 20999dd986ccSRichard W.M. JonesSTEXI 21009dd986ccSRichard W.M. Jones@item -watchdog @var{model} 21016616b2adSStefan Weil@findex -watchdog 21029dd986ccSRichard W.M. JonesCreate a virtual hardware watchdog device. Once enabled (by a guest 21039dd986ccSRichard W.M. Jonesaction), the watchdog must be periodically polled by an agent inside 21049dd986ccSRichard W.M. Jonesthe guest or else the guest will be restarted. 21059dd986ccSRichard W.M. Jones 21069dd986ccSRichard W.M. JonesThe @var{model} is the model of hardware watchdog to emulate. Choices 21079dd986ccSRichard W.M. Jonesfor model are: @code{ib700} (iBASE 700) which is a very simple ISA 21089dd986ccSRichard W.M. Joneswatchdog with a single timer, or @code{i6300esb} (Intel 6300ESB I/O 21099dd986ccSRichard W.M. Jonescontroller hub) which is a much more featureful PCI-based dual-timer 21109dd986ccSRichard W.M. Joneswatchdog. Choose a model for which your guest has drivers. 21119dd986ccSRichard W.M. Jones 21129dd986ccSRichard W.M. JonesUse @code{-watchdog ?} to list available hardware models. Only one 21139dd986ccSRichard W.M. Joneswatchdog can be enabled for a guest. 21149dd986ccSRichard W.M. JonesETEXI 21159dd986ccSRichard W.M. Jones 21169dd986ccSRichard W.M. JonesDEF("watchdog-action", HAS_ARG, QEMU_OPTION_watchdog_action, \ 21179dd986ccSRichard W.M. Jones "-watchdog-action reset|shutdown|poweroff|pause|debug|none\n" \ 2118ad96090aSBlue Swirl " action when watchdog fires [default=reset]\n", 2119ad96090aSBlue Swirl QEMU_ARCH_ALL) 21209dd986ccSRichard W.M. JonesSTEXI 21219dd986ccSRichard W.M. Jones@item -watchdog-action @var{action} 21229dd986ccSRichard W.M. Jones 21239dd986ccSRichard W.M. JonesThe @var{action} controls what QEMU will do when the watchdog timer 21249dd986ccSRichard W.M. Jonesexpires. 21259dd986ccSRichard W.M. JonesThe default is 21269dd986ccSRichard W.M. Jones@code{reset} (forcefully reset the guest). 21279dd986ccSRichard W.M. JonesOther possible actions are: 21289dd986ccSRichard W.M. Jones@code{shutdown} (attempt to gracefully shutdown the guest), 21299dd986ccSRichard W.M. Jones@code{poweroff} (forcefully poweroff the guest), 21309dd986ccSRichard W.M. Jones@code{pause} (pause the guest), 21319dd986ccSRichard W.M. Jones@code{debug} (print a debug message and continue), or 21329dd986ccSRichard W.M. Jones@code{none} (do nothing). 21339dd986ccSRichard W.M. Jones 21349dd986ccSRichard W.M. JonesNote that the @code{shutdown} action requires that the guest responds 21359dd986ccSRichard W.M. Jonesto ACPI signals, which it may not be able to do in the sort of 21369dd986ccSRichard W.M. Jonessituations where the watchdog would have expired, and thus 21379dd986ccSRichard W.M. Jones@code{-watchdog-action shutdown} is not recommended for production use. 21389dd986ccSRichard W.M. Jones 21399dd986ccSRichard W.M. JonesExamples: 21409dd986ccSRichard W.M. Jones 21419dd986ccSRichard W.M. Jones@table @code 21429dd986ccSRichard W.M. Jones@item -watchdog i6300esb -watchdog-action pause 21439dd986ccSRichard W.M. Jones@item -watchdog ib700 21449dd986ccSRichard W.M. Jones@end table 21459dd986ccSRichard W.M. JonesETEXI 21469dd986ccSRichard W.M. Jones 21475824d651Sblueswir1DEF("echr", HAS_ARG, QEMU_OPTION_echr, \ 2148ad96090aSBlue Swirl "-echr chr set terminal escape character instead of ctrl-a\n", 2149ad96090aSBlue Swirl QEMU_ARCH_ALL) 21505824d651Sblueswir1STEXI 21515824d651Sblueswir1 21524e257e5eSKevin Wolf@item -echr @var{numeric_ascii_value} 21536616b2adSStefan Weil@findex -echr 21545824d651Sblueswir1Change the escape character used for switching to the monitor when using 21555824d651Sblueswir1monitor and serial sharing. The default is @code{0x01} when using the 21565824d651Sblueswir1@code{-nographic} option. @code{0x01} is equal to pressing 21575824d651Sblueswir1@code{Control-a}. You can select a different character from the ascii 21585824d651Sblueswir1control keys where 1 through 26 map to Control-a through Control-z. For 21595824d651Sblueswir1instance you could use the either of the following to change the escape 21605824d651Sblueswir1character to Control-t. 21615824d651Sblueswir1@table @code 21625824d651Sblueswir1@item -echr 0x14 21635824d651Sblueswir1@item -echr 20 21645824d651Sblueswir1@end table 21655824d651Sblueswir1ETEXI 21665824d651Sblueswir1 21675824d651Sblueswir1DEF("virtioconsole", HAS_ARG, QEMU_OPTION_virtiocon, \ 21685824d651Sblueswir1 "-virtioconsole c\n" \ 2169ad96090aSBlue Swirl " set virtio console\n", QEMU_ARCH_ALL) 21705824d651Sblueswir1STEXI 21715824d651Sblueswir1@item -virtioconsole @var{c} 21726616b2adSStefan Weil@findex -virtioconsole 21735824d651Sblueswir1Set virtio console. 217498b19252SAmit Shah 217598b19252SAmit ShahThis option is maintained for backward compatibility. 217698b19252SAmit Shah 217798b19252SAmit ShahPlease use @code{-device virtconsole} for the new way of invocation. 21785824d651Sblueswir1ETEXI 21795824d651Sblueswir1 21805824d651Sblueswir1DEF("show-cursor", 0, QEMU_OPTION_show_cursor, \ 2181ad96090aSBlue Swirl "-show-cursor show cursor\n", QEMU_ARCH_ALL) 21825824d651Sblueswir1STEXI 218395d5f08bSStefan Weil@item -show-cursor 21846616b2adSStefan Weil@findex -show-cursor 218595d5f08bSStefan WeilShow cursor. 21865824d651Sblueswir1ETEXI 21875824d651Sblueswir1 21885824d651Sblueswir1DEF("tb-size", HAS_ARG, QEMU_OPTION_tb_size, \ 2189ad96090aSBlue Swirl "-tb-size n set TB size\n", QEMU_ARCH_ALL) 21905824d651Sblueswir1STEXI 219195d5f08bSStefan Weil@item -tb-size @var{n} 21926616b2adSStefan Weil@findex -tb-size 219395d5f08bSStefan WeilSet TB size. 21945824d651Sblueswir1ETEXI 21955824d651Sblueswir1 21965824d651Sblueswir1DEF("incoming", HAS_ARG, QEMU_OPTION_incoming, \ 2197ad96090aSBlue Swirl "-incoming p prepare for incoming migration, listen on port p\n", 2198ad96090aSBlue Swirl QEMU_ARCH_ALL) 21995824d651Sblueswir1STEXI 220095d5f08bSStefan Weil@item -incoming @var{port} 22016616b2adSStefan Weil@findex -incoming 220295d5f08bSStefan WeilPrepare for incoming migration, listen on @var{port}. 22035824d651Sblueswir1ETEXI 22045824d651Sblueswir1 2205d8c208ddSGerd HoffmannDEF("nodefaults", 0, QEMU_OPTION_nodefaults, \ 2206ad96090aSBlue Swirl "-nodefaults don't create default devices\n", QEMU_ARCH_ALL) 2207d8c208ddSGerd HoffmannSTEXI 22083dbf2c7fSStefan Weil@item -nodefaults 22096616b2adSStefan Weil@findex -nodefaults 22103dbf2c7fSStefan WeilDon't create default devices. 2211d8c208ddSGerd HoffmannETEXI 2212d8c208ddSGerd Hoffmann 22135824d651Sblueswir1#ifndef _WIN32 22145824d651Sblueswir1DEF("chroot", HAS_ARG, QEMU_OPTION_chroot, \ 2215ad96090aSBlue Swirl "-chroot dir chroot to dir just before starting the VM\n", 2216ad96090aSBlue Swirl QEMU_ARCH_ALL) 22175824d651Sblueswir1#endif 22185824d651Sblueswir1STEXI 22194e257e5eSKevin Wolf@item -chroot @var{dir} 22206616b2adSStefan Weil@findex -chroot 22215824d651Sblueswir1Immediately before starting guest execution, chroot to the specified 22225824d651Sblueswir1directory. Especially useful in combination with -runas. 22235824d651Sblueswir1ETEXI 22245824d651Sblueswir1 22255824d651Sblueswir1#ifndef _WIN32 22265824d651Sblueswir1DEF("runas", HAS_ARG, QEMU_OPTION_runas, \ 2227ad96090aSBlue Swirl "-runas user change to user id user just before starting the VM\n", 2228ad96090aSBlue Swirl QEMU_ARCH_ALL) 22295824d651Sblueswir1#endif 22305824d651Sblueswir1STEXI 22314e257e5eSKevin Wolf@item -runas @var{user} 22326616b2adSStefan Weil@findex -runas 22335824d651Sblueswir1Immediately before starting guest execution, drop root privileges, switching 22345824d651Sblueswir1to the specified user. 22355824d651Sblueswir1ETEXI 22365824d651Sblueswir1 22375824d651Sblueswir1DEF("prom-env", HAS_ARG, QEMU_OPTION_prom_env, 22385824d651Sblueswir1 "-prom-env variable=value\n" 2239ad96090aSBlue Swirl " set OpenBIOS nvram variables\n", 2240ad96090aSBlue Swirl QEMU_ARCH_PPC | QEMU_ARCH_SPARC) 224195d5f08bSStefan WeilSTEXI 224295d5f08bSStefan Weil@item -prom-env @var{variable}=@var{value} 22436616b2adSStefan Weil@findex -prom-env 224495d5f08bSStefan WeilSet OpenBIOS nvram @var{variable} to given @var{value} (PPC, SPARC only). 224595d5f08bSStefan WeilETEXI 22465824d651Sblueswir1DEF("semihosting", 0, QEMU_OPTION_semihosting, 2247ad96090aSBlue Swirl "-semihosting semihosting mode\n", QEMU_ARCH_ARM | QEMU_ARCH_M68K) 224895d5f08bSStefan WeilSTEXI 224995d5f08bSStefan Weil@item -semihosting 22506616b2adSStefan Weil@findex -semihosting 225195d5f08bSStefan WeilSemihosting mode (ARM, M68K only). 225295d5f08bSStefan WeilETEXI 22535824d651Sblueswir1DEF("old-param", 0, QEMU_OPTION_old_param, 2254ad96090aSBlue Swirl "-old-param old param mode\n", QEMU_ARCH_ARM) 225595d5f08bSStefan WeilSTEXI 225695d5f08bSStefan Weil@item -old-param 22576616b2adSStefan Weil@findex -old-param (ARM) 225895d5f08bSStefan WeilOld param mode (ARM only). 225995d5f08bSStefan WeilETEXI 226095d5f08bSStefan Weil 2261715a664aSGerd HoffmannDEF("readconfig", HAS_ARG, QEMU_OPTION_readconfig, 2262ad96090aSBlue Swirl "-readconfig <file>\n", QEMU_ARCH_ALL) 22633dbf2c7fSStefan WeilSTEXI 22643dbf2c7fSStefan Weil@item -readconfig @var{file} 22656616b2adSStefan Weil@findex -readconfig 22663dbf2c7fSStefan WeilRead device configuration from @var{file}. 22673dbf2c7fSStefan WeilETEXI 2268715a664aSGerd HoffmannDEF("writeconfig", HAS_ARG, QEMU_OPTION_writeconfig, 2269715a664aSGerd Hoffmann "-writeconfig <file>\n" 2270ad96090aSBlue Swirl " read/write config file\n", QEMU_ARCH_ALL) 22713dbf2c7fSStefan WeilSTEXI 22723dbf2c7fSStefan Weil@item -writeconfig @var{file} 22736616b2adSStefan Weil@findex -writeconfig 22743dbf2c7fSStefan WeilWrite device configuration to @var{file}. 22753dbf2c7fSStefan WeilETEXI 2276292444cbSAnthony LiguoriDEF("nodefconfig", 0, QEMU_OPTION_nodefconfig, 2277292444cbSAnthony Liguori "-nodefconfig\n" 2278ad96090aSBlue Swirl " do not load default config files at startup\n", 2279ad96090aSBlue Swirl QEMU_ARCH_ALL) 2280292444cbSAnthony LiguoriSTEXI 2281292444cbSAnthony Liguori@item -nodefconfig 22826616b2adSStefan Weil@findex -nodefconfig 2283292444cbSAnthony LiguoriNormally QEMU loads a configuration file from @var{sysconfdir}/qemu.conf and 2284292444cbSAnthony Liguori@var{sysconfdir}/target-@var{ARCH}.conf on startup. The @code{-nodefconfig} 2285292444cbSAnthony Liguorioption will prevent QEMU from loading these configuration files at startup. 2286292444cbSAnthony LiguoriETEXI 2287ab6540d5SPrerna Saxena#ifdef CONFIG_SIMPLE_TRACE 2288ab6540d5SPrerna SaxenaDEF("trace", HAS_ARG, QEMU_OPTION_trace, 2289ab6540d5SPrerna Saxena "-trace\n" 2290ab6540d5SPrerna Saxena " Specify a trace file to log traces to\n", 2291ab6540d5SPrerna Saxena QEMU_ARCH_ALL) 2292ab6540d5SPrerna SaxenaSTEXI 2293ab6540d5SPrerna Saxena@item -trace 2294ab6540d5SPrerna Saxena@findex -trace 2295ab6540d5SPrerna SaxenaSpecify a trace file to log output traces to. 2296ab6540d5SPrerna SaxenaETEXI 2297ab6540d5SPrerna Saxena#endif 22983dbf2c7fSStefan Weil 22993dbf2c7fSStefan WeilHXCOMM This is the last statement. Insert new options before this line! 23003dbf2c7fSStefan WeilSTEXI 23013dbf2c7fSStefan Weil@end table 23023dbf2c7fSStefan WeilETEXI 2303