When executed as kvm, qemu-system is run with preference to native hardware-based virtualization, instead of relying solely on emulation. Essentially kvm is equivalent to qemu-system-x86_64-machine accel=kvm:tcg so when the host CPU support the kvm mode, native hardware virtualization is enabled, or qemu-system-x86_64 falls back to the emulation (TCG) mode.
This manual page was written by Michael Tokarev <[email protected]>.
History
Debian 12 (Bookworm) to Debian 11 (Bullseye): the text shown here
Debian 10 (Buster) to Debian 8 (Jessie)
Debian 7 (Wheezy)
Debian 6.0 (Squeeze)
Debian 5.0 (Lenny)
-D until Debian 7 (Wheezy);
-L until Debian 7 (Wheezy);
-M until Debian 7 (Wheezy);
-S until Debian 7 (Wheezy);
-alt-grab until Debian 7 (Wheezy);
-append until Debian 7 (Wheezy);
-audio-help until Debian 7 (Wheezy);
-balloon until Debian 7 (Wheezy);
-bios until Debian 7 (Wheezy);
-boot until Debian 7 (Wheezy);
-bt until Debian 7 (Wheezy);
-cdrom until Debian 7 (Wheezy);
-chroot until Debian 7 (Wheezy);
-clock until Debian 7 (Wheezy);
-cpu until Debian 7 (Wheezy);
-ctrl-grab until Debian 7 (Wheezy);
-curses until Debian 7 (Wheezy);
-d until Debian 7 (Wheezy);
-daemonize until Debian 7 (Wheezy);
-debugcon until Debian 7 (Wheezy);
-device until Debian 7 (Wheezy);
-display until Debian 7 (Wheezy);
-drive until Debian 7 (Wheezy);
-dtb until Debian 7 (Wheezy);
-echr until Debian 7 (Wheezy);
-enable-kvm until Debian 7 (Wheezy);
-fda until Debian 7 (Wheezy);
-fdb until Debian 7 (Wheezy);
-fsdev until Debian 7 (Wheezy);
-full-screen until Debian 7 (Wheezy);
-g until Debian 7 (Wheezy);
-gdb until Debian 7 (Wheezy);
-global until Debian 7 (Wheezy);
-h until Debian 7 (Wheezy);
-hda until Debian 7 (Wheezy);
-hdachs until Debian 7 (Wheezy);
-hdb until Debian 7 (Wheezy);
-hdc until Debian 7 (Wheezy);
-hdd until Debian 7 (Wheezy);
-icount until Debian 7 (Wheezy);
-incoming until Debian 7 (Wheezy);
-initrd until Debian 7 (Wheezy);
-k until Debian 7 (Wheezy);
-kernel until Debian 7 (Wheezy);
-loadvm until Debian 7 (Wheezy);
-m until Debian 7 (Wheezy);
-machine until Debian 7 (Wheezy);
-mem-path until Debian 7 (Wheezy);
-mem-prealloc until Debian 7 (Wheezy);
-mon until Debian 7 (Wheezy);
-monitor until Debian 7 (Wheezy);
-mtdblock until Debian 7 (Wheezy);
-name until Debian 7 (Wheezy);
-net until Debian 7 (Wheezy);
-netdev until Debian 7 (Wheezy);
-no-acpi until Debian 7 (Wheezy);
-no-fd-bootchk until Debian 7 (Wheezy);
-no-frame until Debian 7 (Wheezy);
-no-hpet until Debian 7 (Wheezy);
-no-kvm until Debian 5.0 (Lenny);
-no-quit until Debian 7 (Wheezy);
-no-reboot until Debian 7 (Wheezy);
-no-shutdown until Debian 7 (Wheezy);
-no-user-config until Debian 7 (Wheezy);
-nodefaults until Debian 7 (Wheezy);
-nodefconfig until Debian 7 (Wheezy);
-nographic until Debian 7 (Wheezy);
-numa until Debian 7 (Wheezy);
-old-param until Debian 7 (Wheezy);
-option-rom until Debian 7 (Wheezy);
-parallel until Debian 7 (Wheezy);
-pflash until Debian 7 (Wheezy);
-pidfile until Debian 7 (Wheezy);
-portrait until Debian 7 (Wheezy);
-prom-env until Debian 7 (Wheezy);
-qmp until Debian 7 (Wheezy);
-readconfig until Debian 7 (Wheezy);
-rotate until Debian 7 (Wheezy);
-rtc until Debian 7 (Wheezy);
-runas until Debian 7 (Wheezy);
-s until Debian 7 (Wheezy);
-sd until Debian 7 (Wheezy);
-sdl until Debian 7 (Wheezy);
-semihosting until Debian 7 (Wheezy);
-serial until Debian 7 (Wheezy);
-set until Debian 7 (Wheezy);
-show-cursor until Debian 7 (Wheezy);
-singlestep until Debian 7 (Wheezy);
-smbios until Debian 7 (Wheezy);
-smp until Debian 7 (Wheezy);
-snapshot until Debian 7 (Wheezy);
-soundhw until Debian 7 (Wheezy);
-spice until Debian 7 (Wheezy);
-tb-size until Debian 7 (Wheezy);
-trace until Debian 7 (Wheezy);
-usb until Debian 7 (Wheezy);
-usbdevice until Debian 7 (Wheezy);
-uuid until Debian 7 (Wheezy);
-version until Debian 7 (Wheezy);
-vga until Debian 7 (Wheezy);
-virtfs until Debian 7 (Wheezy);
-virtfs_synth until Debian 7 (Wheezy);
-virtioconsole until Debian 7 (Wheezy);
-vnc until Debian 7 (Wheezy);
-watchdog until Debian 7 (Wheezy);
-watchdog-action until Debian 7 (Wheezy);
-win2k-hack until Debian 7 (Wheezy);
-writeconfig until Debian 7 (Wheezy);
-xen-attach until Debian 7 (Wheezy);
-xen-create until Debian 7 (Wheezy);
-xen-domid until Debian 7 (Wheezy).