root / test / data / kvm_0.12.5_help.txt @ 6da90c0a
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QEMU PC emulator version 0.12.5 (qemu-kvm-0.12.5), Copyright (c) 2003-2008 Fabrice Bellard |
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usage: qemu [options] [disk_image] |
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'disk_image' is a raw hard image image for IDE hard disk 0 |
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Standard options: |
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-h or -help display this help and exit |
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-version display version information and exit |
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-M machine select emulated machine (-M ? for list) |
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-cpu cpu select CPU (-cpu ? for list) |
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-smp n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets] |
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set the number of CPUs to 'n' [default=1] |
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maxcpus= maximum number of total cpus, including |
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offline CPUs for hotplug etc. |
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cores= number of CPU cores on one socket |
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threads= number of threads on one CPU core |
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sockets= number of discrete sockets in the system |
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-numa node[,mem=size][,cpus=cpu[-cpu]][,nodeid=node] |
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-fda/-fdb file use 'file' as floppy disk 0/1 image |
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-hda/-hdb file use 'file' as IDE hard disk 0/1 image |
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-hdc/-hdd file use 'file' as IDE hard disk 2/3 image |
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-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master) |
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-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i] |
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[,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off] |
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[,cache=writethrough|writeback|none][,format=f][,serial=s] |
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[,addr=A][,id=name][,aio=threads|native] |
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[,boot=on|off] |
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use 'file' as a drive image |
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-set group.id.arg=value |
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set <arg> parameter for item <id> of type <group> |
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i.e. -set drive.$id.file=/path/to/image |
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-global driver.property=value |
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set a global default for a driver property |
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-mtdblock file use 'file' as on-board Flash memory image |
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-sd file use 'file' as SecureDigital card image |
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-pflash file use 'file' as a parallel flash image |
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-boot [order=drives][,once=drives][,menu=on|off] |
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'drives': floppy (a), hard disk (c), CD-ROM (d), network (n) |
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-snapshot write to temporary files instead of disk image files |
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-m megs set virtual RAM size to megs MB [default=128] |
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-k language use keyboard layout (for example 'fr' for French) |
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-audio-help print list of audio drivers and their options |
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-soundhw c1,... enable audio support |
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and only specified sound cards (comma separated list) |
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use -soundhw ? to get the list of supported cards |
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use -soundhw all to enable all of them |
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-usb enable the USB driver (will be the default soon) |
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-usbdevice name add the host or guest USB device 'name' |
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-device driver[,options] add device |
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-name string1[,process=string2] set the name of the guest |
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string1 sets the window title and string2 the process name (on Linux) |
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-uuid %08x-%04x-%04x-%04x-%012x |
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specify machine UUID |
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|
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Display options: |
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-nographic disable graphical output and redirect serial I/Os to console |
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-curses use a curses/ncurses interface instead of SDL |
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-no-frame open SDL window without a frame and window decorations |
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-alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt) |
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-ctrl-grab use Right-Ctrl to grab mouse (instead of Ctrl-Alt) |
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-no-quit disable SDL window close capability |
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-sdl enable SDL |
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-portrait rotate graphical output 90 deg left (only PXA LCD) |
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-vga [std|cirrus|vmware|xenfb|none] |
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select video card type |
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-full-screen start in full screen |
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-vnc display start a VNC server on display |
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|
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i386 target only: |
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-win2k-hack use it when installing Windows 2000 to avoid a disk full bug |
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-no-fd-bootchk disable boot signature checking for floppy disks |
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-no-acpi disable ACPI |
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-no-hpet disable HPET |
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-balloon none disable balloon device |
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-balloon virtio[,addr=str] |
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enable virtio balloon device (default) |
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-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]...] |
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ACPI table description |
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-smbios file=binary |
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Load SMBIOS entry from binary file |
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-smbios type=0[,vendor=str][,version=str][,date=str][,release=%d.%d] |
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Specify SMBIOS type 0 fields |
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-smbios type=1[,manufacturer=str][,product=str][,version=str][,serial=str] |
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[,uuid=uuid][,sku=str][,family=str] |
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Specify SMBIOS type 1 fields |
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|
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Network options: |
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-net nic[,vlan=n][,macaddr=mac][,model=type][,name=str][,addr=str][,vectors=v] |
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create a new Network Interface Card and connect it to VLAN 'n' |
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-net user[,vlan=n][,name=str][,net=addr[/mask]][,host=addr][,restrict=y|n] |
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[,hostname=host][,dhcpstart=addr][,dns=addr][,tftp=dir][,bootfile=f] |
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[,hostfwd=rule][,guestfwd=rule][,smb=dir[,smbserver=addr]] |
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connect the user mode network stack to VLAN 'n', configure its |
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DHCP server and enabled optional services |
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-net tap[,vlan=n][,name=str][,fd=h][,ifname=name][,script=file][,downscript=dfile][,sndbuf=nbytes][,vnet_hdr=on|off] |
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connect the host TAP network interface to VLAN 'n' and use the |
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network scripts 'file' (default=/etc/kvm/kvm-ifup) |
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and 'dfile' (default=/etc/kvm/kvm-ifdown); |
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use '[down]script=no' to disable script execution; |
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use 'fd=h' to connect to an already opened TAP interface |
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use 'sndbuf=nbytes' to limit the size of the send buffer; the |
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default of 'sndbuf=1048576' can be disabled using 'sndbuf=0' |
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use vnet_hdr=off to avoid enabling the IFF_VNET_HDR tap flag; use |
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vnet_hdr=on to make the lack of IFF_VNET_HDR support an error condition |
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-net socket[,vlan=n][,name=str][,fd=h][,listen=[host]:port][,connect=host:port] |
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connect the vlan 'n' to another VLAN using a socket connection |
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-net socket[,vlan=n][,name=str][,fd=h][,mcast=maddr:port] |
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connect the vlan 'n' to multicast maddr and port |
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-net vde[,vlan=n][,name=str][,sock=socketpath][,port=n][,group=groupname][,mode=octalmode] |
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connect the vlan 'n' to port 'n' of a vde switch running |
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on host and listening for incoming connections on 'socketpath'. |
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Use group 'groupname' and mode 'octalmode' to change default |
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ownership and permissions for communication port. |
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-net dump[,vlan=n][,file=f][,len=n] |
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dump traffic on vlan 'n' to file 'f' (max n bytes per packet) |
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-net none use it alone to have zero network devices; if no -net option |
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is provided, the default is '-net nic -net user' |
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-netdev [user|tap|vde|socket],id=str[,option][,option][,...] |
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|
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Character device options: |
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-chardev null,id=id |
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-chardev socket,id=id[,host=host],port=host[,to=to][,ipv4][,ipv6][,nodelay] |
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[,server][,nowait][,telnet] (tcp) |
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-chardev socket,id=id,path=path[,server][,nowait][,telnet] (unix) |
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-chardev udp,id=id[,host=host],port=port[,localaddr=localaddr] |
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[,localport=localport][,ipv4][,ipv6] |
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-chardev msmouse,id=id |
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-chardev vc,id=id[[,width=width][,height=height]][[,cols=cols][,rows=rows]] |
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-chardev file,id=id,path=path |
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-chardev pipe,id=id,path=path |
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-chardev pty,id=id |
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-chardev stdio,id=id,[,signal=on|off] |
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-chardev braille,id=id |
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-chardev tty,id=id,path=path |
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-chardev parport,id=id,path=path |
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|
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Bluetooth(R) options: |
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-bt hci,null dumb bluetooth HCI - doesn't respond to commands |
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-bt hci,host[:id] |
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use host's HCI with the given name |
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-bt hci[,vlan=n] |
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emulate a standard HCI in virtual scatternet 'n' |
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-bt vhci[,vlan=n] |
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add host computer to virtual scatternet 'n' using VHCI |
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-bt device:dev[,vlan=n] |
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emulate a bluetooth device 'dev' in scatternet 'n' |
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|
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Linux/Multiboot boot specific: |
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-kernel bzImage use 'bzImage' as kernel image |
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-append cmdline use 'cmdline' as kernel command line |
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-initrd file use 'file' as initial ram disk |
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|
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Debug/Expert options: |
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-serial dev redirect the serial port to char device 'dev' |
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-parallel dev redirect the parallel port to char device 'dev' |
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-monitor dev redirect the monitor to char device 'dev' |
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-qmp dev like -monitor but opens in 'control' mode. |
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-mon chardev=[name][,mode=readline|control][,default] |
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-pidfile file write PID to 'file' |
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-singlestep always run in singlestep mode |
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-S freeze CPU at startup (use 'c' to start execution) |
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-gdb dev wait for gdb connection on 'dev' |
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-s shorthand for -gdb tcp::1234 |
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-d item1,... output log to /tmp/qemu.log (use -d ? for a list of log items) |
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-hdachs c,h,s[,t] |
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force hard disk 0 physical geometry and the optional BIOS |
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translation (t=none or lba) (usually qemu can guess them) |
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-L path set the directory for the BIOS, VGA BIOS and keymaps |
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-bios file set the filename for the BIOS |
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-enable-kvm enable KVM full virtualization support |
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-no-reboot exit instead of rebooting |
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-no-shutdown stop before shutdown |
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-loadvm [tag|id] |
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start right away with a saved state (loadvm in monitor) |
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-daemonize daemonize QEMU after initializing |
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-option-rom rom load a file, rom, into the option ROM space |
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-clock force the use of the given methods for timer alarm. |
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To see what timers are available use -clock ? |
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-rtc [base=utc|localtime|date][,clock=host|vm][,driftfix=none|slew] |
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set the RTC base and clock, enable drift fix for clock ticks |
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-icount [N|auto] |
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enable virtual instruction counter with 2^N clock ticks per |
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instruction |
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-watchdog i6300esb|ib700 |
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enable virtual hardware watchdog [default=none] |
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-watchdog-action reset|shutdown|poweroff|pause|debug|none |
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action when watchdog fires [default=reset] |
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-echr chr set terminal escape character instead of ctrl-a |
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-virtioconsole c |
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set virtio console |
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-show-cursor show cursor |
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-tb-size n set TB size |
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-incoming uri wait on uri for incoming migration |
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-nodefaults don't create default devices. |
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-chroot dir Chroot to dir just before starting the VM. |
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-runas user Change to user id user just before starting the VM. |
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-readconfig <file> |
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-writeconfig <file> |
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read/write config file |
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-no-kvm disable KVM hardware virtualization |
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-no-kvm-irqchip disable KVM kernel mode PIC/IOAPIC/LAPIC |
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-no-kvm-pit disable KVM kernel mode PIT |
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-no-kvm-pit-reinjection disable KVM kernel mode PIT interrupt reinjection |
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-pcidevice host=bus:dev.func[,dma=none][,name=string] |
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expose a PCI device to the guest OS. |
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dma=none: don't perform any dma translations (default is to use an iommu) |
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'string' is used in log output. |
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-enable-nesting enable support for running a VM inside the VM (AMD only) |
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-nvram FILE provide ia64 nvram contents |
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-tdf enable guest time drift compensation |
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-kvm-shadow-memory MEGABYTES |
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allocate MEGABYTES for kvm mmu shadowing |
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-mem-path FILE provide backing storage for guest RAM |
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-mem-prealloc preallocate guest memory (use with -mempath) |
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During emulation, the following keys are useful: |
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ctrl-alt-f toggle full screen |
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ctrl-alt-n switch to virtual console 'n' |
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ctrl-alt toggle mouse and keyboard grab |
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When using -nographic, press 'ctrl-a h' to get some help. |