| QEMU PC emulator version 0.9.1 (kvm-72), Copyright (c) 2003-2008 Fabrice Bellard |
| usage: qemu [options] [disk_image] |
| |
| 'disk_image' is a raw hard image image for IDE hard disk 0 |
| |
| Standard options: |
| -M machine select emulated machine (-M ? for list) |
| -cpu cpu select CPU (-cpu ? for list) |
| -fda/-fdb file use 'file' as floppy disk 0/1 image |
| -hda/-hdb file use 'file' as IDE hard disk 0/1 image |
| -hdc/-hdd file use 'file' as IDE hard disk 2/3 image |
| -cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master) |
| -drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i] |
| [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off] |
| -fakeopt |
| [,cache=on|off][,format=f][,boot=on|off] |
| use 'file' as a drive image |
| -mtdblock file use 'file' as on-board Flash memory image |
| -sd file use 'file' as SecureDigital card image |
| -pflash file use 'file' as a parallel flash image |
| -boot [a|c|d|n] boot on floppy (a), hard disk (c), CD-ROM (d), or network (n) |
| -snapshot write to temporary files instead of disk image files |
| -no-frame open SDL window without a frame and window decorations |
| -alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt) |
| -no-quit disable SDL window close capability |
| -no-fd-bootchk disable boot signature checking for floppy disks |
| -m megs set virtual RAM size to megs MB [default=128] |
| -smp n set the number of CPUs to 'n' [default=1] |
| -nographic disable graphical output and redirect serial I/Os to console |
| -portrait rotate graphical output 90 deg left (only PXA LCD) |
| -k language use keyboard layout (for example "fr" for French) |
| -audio-help print list of audio drivers and their options |
| -soundhw c1,... enable audio support |
| and only specified sound cards (comma separated list) |
| use -soundhw ? to get the list of supported cards |
| use -soundhw all to enable all of them |
| -localtime set the real time clock to local time [default=utc] |
| -full-screen start in full screen |
| -win2k-hack use it when installing Windows 2000 to avoid a disk full bug |
| -usb enable the USB driver (will be the default soon) |
| -usbdevice name add the host or guest USB device 'name' |
| -name string set the name of the guest |
| |
| Network options: |
| -net nic[,vlan=n][,macaddr=addr][,model=type] |
| create a new Network Interface Card and connect it to VLAN 'n' |
| -net user[,vlan=n][,hostname=host] |
| connect the user mode network stack to VLAN 'n' and send |
| hostname 'host' to DHCP clients |
| -net tap[,vlan=n][,fd=h][,ifname=name][,script=file][,downscript=dfile] |
| connect the host TAP network interface to VLAN 'n' and use the |
| network scripts 'file' (default=/etc/kvm/kvm-ifup) |
| and 'dfile' (default=/etc/kvm/kvm-ifdown); |
| use '[down]script=no' to disable script execution; |
| use 'fd=h' to connect to an already opened TAP interface |
| -net socket[,vlan=n][,fd=h][,listen=[host]:port][,connect=host:port] |
| connect the vlan 'n' to another VLAN using a socket connection |
| -net socket[,vlan=n][,fd=h][,mcast=maddr:port] |
| connect the vlan 'n' to multicast maddr and port |
| -net none use it alone to have zero network devices; if no -net option |
| is provided, the default is '-net nic -net user' |
| |
| -tftp dir allow tftp access to files in dir [-net user] |
| -bootp file advertise file in BOOTP replies |
| -smb dir allow SMB access to files in 'dir' [-net user] |
| -redir [tcp|udp]:host-port:[guest-host]:guest-port |
| redirect TCP or UDP connections from host to guest [-net user] |
| |
| Linux boot specific: |
| -kernel bzImage use 'bzImage' as kernel image |
| -append cmdline use 'cmdline' as kernel command line |
| -initrd file use 'file' as initial ram disk |
| |
| Debug/Expert options: |
| -monitor dev redirect the monitor to char device 'dev' |
| -serial dev redirect the serial port to char device 'dev' |
| -parallel dev redirect the parallel port to char device 'dev' |
| -pidfile file Write PID to 'file' |
| -S freeze CPU at startup (use 'c' to start execution) |
| -s wait gdb connection to port |
| -p port set gdb connection port [default=1234] |
| -d item1,... output log to /tmp/qemu.log (use -d ? for a list of log items) |
| -hdachs c,h,s[,t] force hard disk 0 physical geometry and the optional BIOS |
| translation (t=none or lba) (usually qemu can guess them) |
| -L path set the directory for the BIOS, VGA BIOS and keymaps |
| -no-kvm disable KVM hardware virtualization |
| -no-kvm-irqchip disable KVM kernel mode PIC/IOAPIC/LAPIC |
| -no-kvm-pit disable KVM kernel mode PIT |
| -std-vga simulate a standard VGA card with VESA Bochs Extensions |
| (default is CL-GD5446 PCI VGA) |
| -no-acpi disable ACPI |
| -curses use a curses/ncurses interface instead of SDL |
| -no-reboot exit instead of rebooting |
| -no-shutdown stop before shutdown |
| -loadvm [tag|id] start right away with a saved state (loadvm in monitor) |
| -vnc display start a VNC server on display |
| -daemonize daemonize QEMU after initializing |
| -tdf inject timer interrupts that got lost |
| -kvm-shadow-memory megs set the amount of shadow pages to be allocated |
| -mem-path set the path to hugetlbfs/tmpfs mounted directory, also enables allocation of guest memory with huge pages |
| -option-rom rom load a file, rom, into the option ROM space |
| -clock force the use of the given methods for timer alarm. |
| To see what timers are available use -clock ? |
| -startdate select initial date of the clock |
| -icount [N|auto] |
| Enable virtual instruction counter with 2^N clock ticks per instruction |
| |
| During emulation, the following keys are useful: |
| ctrl-alt-f toggle full screen |
| ctrl-alt-n switch to virtual console 'n' |
| ctrl-alt toggle mouse and keyboard grab |
| |
| When using -nographic, press 'ctrl-a h' to get some help. |
