labkvm

[root&＃64;Centos72 libvirt]#qemu-kvm -h
QEMU emulator version 1.5.3 (qemu-kvm-1.5.3-156.el7_5.3), Copyright (c) 2003-2008 Fabrice BellardWARNING: Direct use of qemu-kvm from the command line is not supported by Red Hat.
WARNING: Use libvirt as the stable management interface.
WARNING: Some command line options listed here may not be available in future releases.usage: qemu-kvm [options] [disk_image]&＃39;disk_image&＃39; is a raw hard disk image for IDE hard disk 0Standard options: #标准选项
-h or -help display this help and exit
-version display version information and exit
-machine [type&＃61;]name[,prop[&＃61;value][,...]]selects emulated machine (&＃39;-machine help&＃39; for list)property accel&＃61;accel1[:accel2[:...]] selects acceleratorsupported accelerators are kvm, xen, tcg (default: tcg)kernel_irqchip&＃61;on|off controls accelerated irqchip supportkvm_shadow_mem&＃61;size of KVM shadow MMUdump-guest-core&＃61;on|off include guest memory in a core dump (default&＃61;on)mem-merge&＃61;on|off controls memory merge support (default: on)
-cpu cpu select CPU (&＃39;-cpu help&＃39; for list)
-smp n[,maxcpus&＃61;cpus][,cores&＃61;cores][,threads&＃61;threads][,sockets&＃61;sockets]set the number of CPUs to &＃39;n&＃39; [default&＃61;1]maxcpus&＃61; maximum number of total cpus, includingoffline CPUs for hotplug, etccores&＃61; number of CPU cores on one socketthreads&＃61; number of threads on one CPU coresockets&＃61; number of discrete sockets in the system
-numa node[,mem&＃61;size][,cpus&＃61;cpu[-cpu]][,nodeid&＃61;node]
-add-fd fd&＃61;fd,set&＃61;set[,opaque&＃61;opaque]Add &＃39;fd&＃39; to fd &＃39;set&＃39;
-set group.id.arg&＃61;valueset parameter for item of type i.e. -set drive.$id.file&＃61;/path/to/image
-global driver.prop&＃61;valueset a global default for a driver property
-boot [order&＃61;drives][,once&＃61;drives][,menu&＃61;on|off][,splash&＃61;sp_name][,splash-time&＃61;sp_time][,reboot-timeout&＃61;rb_time][,strict&＃61;on|off]&＃39;drives&＃39;: floppy (a), hard disk (c), CD-ROM (d), network (n)&＃39;sp_name&＃39;: the file&＃39;s name that would be passed to bios as logo picture, if menu&＃61;on&＃39;sp_time&＃39;: the period that splash picture last if menu&＃61;on, unit is ms&＃39;rb_timeout&＃39;: the timeout before guest reboot when boot failed, unit is ms
-m megs set virtual RAM size to megs MB [default&＃61;128]
-mem-path FILE provide backing storage for guest RAM
-mem-prealloc preallocate guest memory (use with -mem-path)
-k language use keyboard layout (for example &＃39;fr&＃39; for French)
-audio-help print list of audio drivers and their options
-soundhw c1,... enable audio supportand only specified sound cards (comma separated list)use &＃39;-soundhw help&＃39; to get the list of supported cardsuse &＃39;-soundhw all&＃39; to enable all of them
-balloon none disable balloon device
-balloon virtio[,addr&＃61;str]enable virtio balloon device (default)
-device driver[,prop[&＃61;value][,...]]add device (based on driver)prop&＃61;value,... sets driver propertiesuse &＃39;-device help&＃39; to print all possible driversuse &＃39;-device driver,help&＃39; to print all possible properties
-name string1[,process&＃61;string2]set the name of the gueststring1 sets the window title and string2 the process name (on Linux)
-uuid %08x-%04x-%04x-%04x-%012xspecify machine UUIDBlock device options: #块设备选项
-fda/-fdb file use &＃39;file&＃39; as floppy disk 0/1 image
-hda/-hdb file use &＃39;file&＃39; as IDE hard disk 0/1 image
-hdc/-hdd file use &＃39;file&＃39; as IDE hard disk 2/3 image
-cdrom file use &＃39;file&＃39; as IDE cdrom image (cdrom is ide1 master)
-drive [file&＃61;file][,if&＃61;type][,bus&＃61;n][,unit&＃61;m][,media&＃61;d][,index&＃61;i][,cyls&＃61;c,heads&＃61;h,secs&＃61;s[,trans&＃61;t]][,snapshot&＃61;on|off][,cache&＃61;writethrough|writeback|none|directsync|unsafe][,format&＃61;f][,serial&＃61;s][,addr&＃61;A][,id&＃61;name][,aio&＃61;threads|native][,readonly&＃61;on|off][,copy-on-read&＃61;on|off][[,bps&＃61;b]|[[,bps_rd&＃61;r][,bps_wr&＃61;w]]][[,iops&＃61;i]|[[,iops_rd&＃61;r][,iops_wr&＃61;w]]use &＃39;file&＃39; as a drive image
-mtdblock file use &＃39;file&＃39; as on-board Flash memory image
-sd file use &＃39;file&＃39; as SecureDigital card image
-pflash file use &＃39;file&＃39; as a parallel flash image
-snapshot write to temporary files instead of disk image files
-hdachs c,h,s[,t]force hard disk 0 physical geometry and the optional BIOStranslation (t&＃61;none or lba) (usually QEMU can guess them)
-fsdev fsdriver,id&＃61;id[,path&＃61;path,][security_model&＃61;{mapped-xattr|mapped-file|passthrough|none}][,writeout&＃61;immediate][,readonly][,socket&＃61;socket|sock_fd&＃61;sock_fd]
-virtfs local,path&＃61;path,mount_tag&＃61;tag,security_model&＃61;[mapped-xattr|mapped-file|passthrough|none][,writeout&＃61;immediate][,readonly][,socket&＃61;socket|sock_fd&＃61;sock_fd]
-virtfs_synth Create synthetic file system imageUSB options:　　　　　　# usb选项
-usb enable the USB driver (will be the default soon)
-usbdevice name add the host or guest USB device &＃39;name&＃39;Display options:
-display sdl[,frame&＃61;on|off][,alt_grab&＃61;on|off][,ctrl_grab&＃61;on|off][,window_close&＃61;on|off]|curses|none|vnc&＃61;[,]select display type
-nographic disable graphical output and redirect serial I/Os to console
-curses use a curses/ncurses interface instead of SDL
-no-frame open SDL window without a frame and window decorations
-alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt)
-ctrl-grab use Right-Ctrl to grab mouse (instead of Ctrl-Alt)
-no-quit disable SDL window close capability
-sdl enable SDL
-spice [port&＃61;port][,tls-port&＃61;secured-port][,x509-dir&＃61;