Features

This page tells you about all the features Qemu has and will get and/or lose in the foreseeable future.

Primary and Secondary

A primary feature is a feature that is actively maintained. Breaking it by introducing new code is a no-go.

Secondary features are there and work, but either there's no active maintainer caring enough about it or people don't deem the feature important enough to declare breakages here a blocking issue.

Guest CPU support

Feature	Importance	Maintainer	git tree	Comment
Alpha Guest	Secondary	?	-	-
ARM Guest	Primary	Paul Brook Peter Maydell	git://git.linaro.org/people/pmaydell/qemu-arm.git target-arm.next, arm-devs.next	-
CRIS Guest	Secondary	Edgar E. Iglesias	-	-
x86 Guest	Primary	?	-	-
x86-64 Guest	Primary	?	-	-
LM32 Guest	Secondary	Michael Walle	-	-
m68k Guest	Secondary	Paul Brook	-	-
MicroBlaze Guest	Secondary	Edgar E. Iglesias	-	-
MIPS Guest	Secondary	Aurelien Jarno	-	-
PPC Guest	Primary	Alexander Graf	git://repo.or.cz/qemu/agraf.git ppc-next	-
S390x Guest	Secondary	Alexander Graf	-	-
SH4 Guest	Secondary	Aurelien Jarno	-	-
Sparc Guest	Secondary	Blue Swirl	-	-
Xtensa Guest	Secondary	Max Filippov	-	-

Host CPU support

Feature	Importance	Maintainer	git tree	Comment
Alpha Host	Secondary	Richard Henderson	-	-
ARM Host	Secondary	Paul Brook Peter Maydell	-	-
HPPA Host	Secondary	Richard Henderson	-	-
x86 Host	Primary	?	-	-
x86_64 Host	Primary	?	-	-
IA64 Host	Secondary	Aurelien Jarno	-	-
PPC(64) Host	Secondary	malc	-	-
S390x Host	Secondary	Richard Henderson	-	-
Sparc Host	Secondary	Blue Swirl	-	-

Block layer

Feature	Importance	Maintainer	git tree	Comment
Generic block layer	Primary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
qemu-img Tool	Primary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
qemu-nbd Tool	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
qemu-io Tool	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
bochs Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
cloop Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
.cow Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
curl (http/ftp) Protocol	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
.dmg Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
nbd Protocol	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
parallels Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
qcow Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
qcow2 Format	Primary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
qed Format	Primary	Kevin Wolf Stefan Hajnoczi	git://repo.or.cz/qemu/kevin.git block	-
raw Format	Primary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
sheepdog Format	Secondary	MORITA Kazutaka	-	-
.vdi Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
.vmdk Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
vpc Format	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-
vvfat Protocol	Secondary	Kevin Wolf	git://repo.or.cz/qemu/kevin.git block	-

User interfaces

Feature	Importance	Maintainer	git tree	Comment
Human Monitor	Primary	?	git://repo.or.cz/qemu/qmp-unstable.git queue/qmp	-
QMP	Primary	Luiz Capitulino	git://repo.or.cz/qemu/qmp-unstable.git queue/qmp	-
VNC Output	Primary	Anthony Liguori	-	-
Threaded VNC Output	Primary	Corentin Chary	-	-
SPICE Output	Primary	Gerd Hoffmann	git://anongit.freedesktop.org/spice/qemu ?	-
SDL Output	Primary	?	-	-
curses Output	Secondary	?	-	-
cocoa Output	Secondary	Andreas Färber	git://repo.or.cz/qemu/afaerber.git ?	-

Host platform

Feature	Importance	Maintainer	git tree	Comment
Linux	Primary	?	-	-
*BSD	Secondary	Blue Swirl	-	-
Win32	Secondary	?	-	-
Mac OS X	Secondary	Andreas Färber	git://repo.or.cz/qemu/afaerber.git ?	-
AIX	Secondary	malc	-	-

Hypervisor support

Feature	Importance	Maintainer	git tree	Comment
x86/x86_64 KVM	Primary	Avi Kivity Marcelo Tosatti	git://github.com/avikivity/qemu.git uq/master	-
x86/x86_64 Xen	Secondary	Stefano Stabellini	-	-
PowerPC BookE KVM	Primary	Alexander Graf	-	-
PowerPC Book3S KVM	Primary	Alexander Graf	-	-
S390x KVM	Primary	Alexander Graf	-	-

Other subsystems

Feature	Importance	Maintainer	git tree	Comment
linux-user	Primary	Riku Voipio	git://git.linaro.org/people/rikuvoipio/qemu.git linux-user-for-upstream	-
SLIRP	Secondary	Jan Kiszka	git://git.kiszka.org/qemu.git queues/slirp	-
Trivial patches	N/A	Stefan Hajnoczi	git://repo.or.cz/qemu/stefanha.git trivial-patches	-
Tracing	Primary	Stefan Hajnoczi	git://repo.or.cz/qemu/stefanha.git tracing	-
USB	Primary	Gerd Hoffman	git://git.kraxel.org/qemu ?	-