KVM - User contributions [en]

Guest Support Status

2009-10-22T19:10:26Z

Cberendt:

=Guest Support Status=

== Windows Family ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-
| Windows 2008 R2 RTM
| 64
| kvm-88
| Intel
| 64
| Works
| Installs and works with 1GB guest RAM. [http://twitpic.com/dxs0z/full screenshot]
|-

|-
| Windows 7 RTM
| 32, 64
| kvm-88
| Intel
| 64
| Works
| Installs and works with 1GB guest RAM. [http://twitpic.com/d3gqq/full screenshot]
|-

|-
| Windows 7 RC
| 64
| kvm-72+dfsg-5
| Intel
| 64
| Works
| Installs and works without any problem with 1GB guest RAM.
|-

|-
| Windows 7 Beta
| 64
| kvm-84
| AMD
| 64
| Works
| Installs and works without any problem with 512MB guest RAM.
|-

| Windows 7 Beta
| 32
| kvm-83
| Intel
| 32
| Works
| Installed in about 25-30 minutes and worked flawlessly on my ThinkPad T60 (1953-7EU) with 1.5G of RAM
|-

| Windows 7 Beta
| 32
| kvm-62
| AMD
| 64
| Works
| "-m 2048 -vnc :0 -usbdevice tablet -smp 2 -std-vga" on qcow2
|-

| Windows Server 2008 (Datacenter)
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Windows Server 2008 (Datacenter)
| 32
| kvm-72
| Intel, AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Windows Vista Ultimate
| 64
| kvm-84
| Intel, AMD
| 64
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Vista Ultimate
| 32
| kvm-84
| Intel, AMD
| 64, 32
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Server 2003 x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows XP Pro x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows XP Pro
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows XP Pro
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel, AMD
| 64
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel
| 32
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Advanced Server
| 32
| kvm-44
| Intel
| 64
| Works
| use Qcow2 format.
|-

| Windows 98SE
| 32
| kvm-63
| Intel
| 32
| Fails
| by Alexey.E. (halts when booting HIMEM)
|-

| Windows 98SE
| 32
| kvm-80, 2.6.27.7
| AMD
| 64
| no way
| install crashes
|-

| Windows 95
| 32
| kvm-44, 2.6.23-rc8
| AMD
| 64, 32
| no way
|
|}

== Linux Family: Fedora/RedHat Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Fedora 11
| 64
| kvm-87
| Intel
| 64
| Fails
| Anaconda freezes
|-

| Fedora 11
| 32
| kvm-87
| Intel
| 64
| Works
|
|-

| Fedora 11 BETA
| 32, 64
| kvm-84
| Intel
| 64
| Fails
| by Alexey.E. Slowness and softlockups.
|-

|-
| Fedora 10
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E. Updated by Lennert.B.
|-

| Fedora 9
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 8
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 7
| 32, 64
| kvm-75
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 6
| 32
| kvm-26
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 5
| 32, 64
| kvm-12
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 4
| 64
|
| AMD
| 64
| Works, slightly high idle cpu
|by MichaelKarliner
|-

| Fedora 3
| 64
| kvm-78
| AMD
| 64
| Works
| by George Y. Requires noacpi in boot options
|-

| RHEL5
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| RHEL4
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| RHEL3
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| Red Hat Linux 9
| 32
| kvm-51
| Intel
| 64
| Works
| by Alexey.E.
|-

| Red Hat Linux 8
| 32
| kvm-64
| Intel
| 64
| Crashes
| Fails on init. by Frank.Q.
|-

| Red Hat Linux 7.3
| 32
| kvm-78
| AMD
| 64
| Works
| -no-kvm is required for installation
|-

| Red Hat Linux 7
| 32
| kvm-52
| Intel, AMD
| 64
| Crashes
| Fails on init. by Alexey.E.
|-

| Trixbox (CentOS)
| 32
| kvm-12
| Intel
| 64
| Works
|
|}

== Linux Family: Ubuntu/Debian Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Debian GNU/Linux 5.0
| 64
| kvm-88
| Intel, AMD
| 64
| Works
| 2009/10/22 by Christian Berendt / [http://www.b1-systems.de B1 Systems]
|-

| Ubuntu 9.04
| 64
| kvm-84
| Intel
| 64
| Works
| It's actually Xubuntu but should be the same both block and net virtio devices working too
|-

| Ubuntu 8.10
| 32
| kvm-85
| Intel, AMD
| 32, 64
| Works
| by Peter.v.V.
|-

| Ubuntu 8.04 LTS
| 32, 64
| kvm-64
| Intel, AMD
| 32, 64
| Works
| by Alexey.E. (some issues with virtio)
|-

| Ubuntu 7.10
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 7.10 Server
| 64
| kvm-60
| AMD
| 64
| Works
| No framebuffer (black screen at first). Hit enter to start installer.
|-

| Ubuntu 7.10 Server
| 32
| kvm-60/61
| Intel
| 64
| Doesn't work
| Installer crashes (by Ryota Ozaki)
|-

| Ubuntu 7.04
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 6.06 LTS Server
| 32
| kvm-20
| Intel
| 32
| Works
| use -no-acpi
|-

| Debian Lenny 5.0
| 32, 64
| kvm-72/77
| Intel
| 64
| Works
|
|-

| Debian Etch 4.0
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| Intel
| 64, 32
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| AMD
| 64
| FAILS, workaround exists
| by Alexey.E. (manually choose i586 kernel, do not use default "k7" kernel)
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 32
| Works
|
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 64
| Mostly works
| Install hangs, will install via -no-kvm. Runs fine after
|-

| Xandros 3 OCE
| 32
| kvm-29
| Intel
| 64
| Works
| by Alexey.E.
|-

| KNOPPIX 5.1.1
| 32
| kvm-18
| Intel
| 64
| Works
| use nmi_watchdog=0 or nolapic kernel parameter to boot
|-

| Knoppix 5.2
| 32
| kvm-18
| Intel
| 32
| Works
|
|}

== Other Linux Distros ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| SUSE Linux Enterprise Server 11
| 32, 64
| kvm-88
| Intel, AMD
| 64
| Works
| 2009/10/22 by Christian Berendt / [http://www.b1-systems.de B1 Systems]
|-

| SUSE Linux Enterprise Server 10
| 32
| kvm-88
| Intel, AMD
| 64
| Works
| 2009/10/22 by Christian Berendt / [http://www.b1-systems.de B1 Systems]
|-

| openSUSE 11.1
| 32, 64
| kvm-88
| Intel, AMD
| 64
| Works
| 2009/10/22 by Christian Berendt / [http://www.b1-systems.de B1 Systems]
|-

| openSUSE 11.1
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 11.0
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32
| kvm-57
| AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32/64
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| openSUSE 10.2
| 32/64
| kvm-28/kvm-51
| Intel
| 64
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 10.0
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 9.1
| 32
| kvm-72
| Intel/AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Slackware 12 .2
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 12
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 11
| 32
| kvm-15
| Intel
| 64
| Works
| using test26.s kernel
|-

| Qemu-Puppy 2.01-3
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| Qemu-Puppy 2.13-1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| SystemRescueCD 0.3.4
| 32
| kvm-18
| Intel
| 64
| Works
| Works fine, except for initial X-setting "cirrus" - changed to "vesa", then works.
|-

| Gentoo 2006.1
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Gentoo 2007.0
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Arch Linux (Duke)
|32
| kvm-17
|AMD
|64
|Works
|Host: 2.6.21-ARCH, guest: 2.6.22-rc5-ARCH says "booting paravirtualized kernel on bare hardware"
|-

| Mandrake Linux 9.2
|32
| kvm-51
|Intel
|64
| Works
| by Alexey.E.
|-

| Mandriva 2009
| 32/64
| kvm-75
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008.1
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2007
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Crux Linux 2.5
| 32
| kvm-82
| Intel
| 32
| Works
| Boots Automatically at 'Guest Install' stage. Installs without issue. by Chris P
|}

== UNIX Family: BSD ==
{|border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| OpenBSD 4.6
| 32
| kvm-84-7.6
| AMD
| 32
| Works
| Use the e1000 driver [-net nic,model=e1000]. Does not find the network after the installation (during install is fine) but disabling mpbios as suggested in 4.5 workaround fixes it.
|-

| OpenBSD 4.5
| 32
| kvm-85
| Intel
| 32
| Crashes
| Use the e1000 driver [-net nic,model=e1000] to avoid lockups and slow network speeds. Crashes after "setting tty flags" - Jaco van der Schyff
4.0 would hang on me at the same place if i booted /bsd.mp but not if i boot /bsd (uniprocessor kernel) - Buck <br/>
4.5 can be made to boot by disabling mpbios as described [http://scie.nti.st/2009/10/4/running-openbsd-4-5-in-kvm-on-ubuntu-linux-9-04 here]; this is a workaround though, not a fix - Maxim
|-

| OpenBSD 4.5
| 64
| kvm-84
| Intel
| 64
| Works
| Use e1000 drivers. Install from CD works, but then you must do the following at the next boot prompt: "bsd -c", "disable mpbios", then "quit"
Make this permanent by using "config -ef /bsd" as root, once everything has booted. -- Garry Dolley
|-

| OpenBSD 4.4
| 64
| kvm-78
| AMD
| 64
| Works
|
|-

| OpenBSD 4.2
| 32
| kvm-58
| Intel
| 32
| Works
|
|-

| OpenBSD 4.1
| 32
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| OpenBSD 4.0
| 64
| kvm-12
| Intel
| 64
| Works
|
|-

| OpenBSD 4.0
| 32
| kvm-16 + CVS
| Intel
| 64
| Works
|
|-

| FreeBSD 6.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| FreeBSD 6.2
| 64
| kvm-12
| AMD
| 64
| Works
|
|-

| FreeBSD 6.2
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| FreeBSD 6.3
| 32
| Fedora 8 - kvm-37-7.fc8
| Intel
| 64
| works
|
|-

|FreeBSD 6.3
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 6.3
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 7.0
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|32
|OpenSUSE 10.3 kvm-63
|AMD
|64
|works
| disk i/o issues? "ad0: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=XXXXXXX"
|-

| FreeBSD 7.0
| 64
| OpenSUSE 10.3 kvm-63
| AMD
| 64
| crashes after boot loader
|-

| FreeBSD 7.1
| 64
| kvm-84
| Intel
| 64
| Works
| sdl graphics mess up if using kvm, setup with -nokvm then use ssh or -nographics and serial console
|-

|FreeBSD 7.2
|64
|kvm-86-3
|Intel
|64
|Works, need to install from the DVD or CD image
|Damon Chesser, Jadase Staff
|-

| GNU/kFreeBSD
| 32
| kvm-84
| Intel
| 32
| Works
| kvm module must be loaded with oos_shadow=0
|-

|GNU/kFreeBSD
| 64
| kvm-15
| AMD
| 64
| Works
|
|-

| GNU/kFreeBSD
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-21
| AMD
| 64
| Works
|
|-

| NetBSD 4.0
| 32
| kvm-60
| Intel
| 64
| Works
| avoid hangup on boot with --no-acpi and network card timeout by trying out a different card, e.g. -net nic,model=ne2k_pci
|-

| NetBSD 5.0
| 64
| kvm-88
| Intel
| 64
| Crashes/hangs
| Install CD image will crash or hang, depending on if ACPI is enabled or not. NetBSD 4.0 workarounds ineffective.
|-

| PC-BSD 1.4
| 32
| kvm-56
| Intel
| 64
| Works
| By Alexey.E.
|-

| DragonflyBSD 1.10.1
| 32
| kvm-58
| Intel
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work; use -net nic,model=e1000 to avoid network timeouts
|-

| DragonflyBSD 2.2.1
| 32
| kvm-85
| Intel
| 64
| Works
| not tried X
|}

== UNIX Family: Solaris/OpenSolaris ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Solaris 10 U1
| 32
| kvm-12
| Intel
| 64
| Works
| later releases will detect the CPU is 64 bit capable and try to default to run a 64 bit kernel and fail, for those you have to override Solaris autodetection by adding "kernel/unix" to the kernel multiboot entry in GRUB
|-

| Solaris 10 U3
| 64
| kvm-58 + patch
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]
|-

| Nexenta Core 1.0
| 64
| kvm-61
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]. Use -m 512 -net nic,model=e1000
|-

| OpenSolaris 2008.05
| 64
| kvm-69
| Intel
| 64
| Works
| Use -m 512 -net nic,model=e1000
|-

| Milax 0.3.2
| 32
| kvm-62
| Intel
| 64
| Works
| Use the kvm option -net nic,model=rtl8139 and add atapi-cd-dma-enabled=0,atapi-other-dma-enabled=0 to the kernel line in the grub menu for older releases of Milax http://www.milax.org/ in version 0.3.2 choose the Qemu grub menu entry ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Belenix 0.7.1
| 64
| kvm-62
| Intel
| 64
| Works
| Note: older releases of Belenix only work in text mode; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Solaris 10 U6
| 32 & 64
| kvm-62
| Intel
| 64
| Mostly Works (see note)
| Note: the grub menu entry for Solaris 10 created by the installer is wrong, to make it work add kernel/unix to the line beginning with kernel ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| OpenSolaris 2008.11
| 64
| kvm-62
| Intel
| 64
|Works
| tested on Ubuntu 8.04.1 by BerndSchemmer
|}

== Other UNIX systems ==
{| border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Darwin 8.0.1
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| MINIX 3.1.2a
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| GNU hurd live CD (20051117)
| 32
| kvm-28
| Intel
| 32
| Works
| Seems to have networking problems.
|-

| GNU/Hurd (Debian K14)
| 32
| kvm-33
| Intel
| 32
| Works
| [http://kvm.qumranet.com/kvmwiki/Guest_Support_Status?action=AttachFile&do=get&target=hurd-k14.png screenshot]
|-

| GNU/Hurd (Debian K16)
| 32
| kvm-69
| AMD
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work
|}

== Others ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Haiku OS
| 32
| kvm-12
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-12
| AMD
| 64
| Works
| LiveCD tested. [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-58
| Intel
| 32
| Works
| LiveCD tested.
|-

| ReactOS 0.3.0
| 32
| kvm-14
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_reactos.png screenshot]
|-

| FreeDOS 1.0
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| MS DOS 6.22
| 32
| kvm-88
| Intel
| 64
| Works
| Works with "-cpu qemu32". Do not load emm386.exe inside config.sys [http://twitpic.com/dce6g screenshot]
|-

| MS DOS 5.0
| 32
| kvm-62
| Intel
| 64
| Works
| Installs and boots. Tested by Alan J.
|-

| Syllable 0.61
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Visopsys 0.62
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Plan 9
| 32
| kvm-68
| Intel
| 64
| Works
| needs -no-kvm-irqchip
|-

| FreeDOS 7 + Novell Netware 4.1
| 32
| kvm-83
| AMD
| 64
| Works
| tested by Ruediger G. Biernat / [http://flickr.com/photos/rgbiernat/3261075882/ screenshot]
|}

Guest Support Status

2009-10-22T19:00:07Z

Cberendt:

=Guest Support Status=

== Windows Family ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-
| Windows 2008 R2 RTM
| 64
| kvm-88
| Intel
| 64
| Works
| Installs and works with 1GB guest RAM. [http://twitpic.com/dxs0z/full screenshot]
|-

|-
| Windows 7 RTM
| 32, 64
| kvm-88
| Intel
| 64
| Works
| Installs and works with 1GB guest RAM. [http://twitpic.com/d3gqq/full screenshot]
|-

|-
| Windows 7 RC
| 64
| kvm-72+dfsg-5
| Intel
| 64
| Works
| Installs and works without any problem with 1GB guest RAM.
|-

|-
| Windows 7 Beta
| 64
| kvm-84
| AMD
| 64
| Works
| Installs and works without any problem with 512MB guest RAM.
|-

| Windows 7 Beta
| 32
| kvm-83
| Intel
| 32
| Works
| Installed in about 25-30 minutes and worked flawlessly on my ThinkPad T60 (1953-7EU) with 1.5G of RAM
|-

| Windows 7 Beta
| 32
| kvm-62
| AMD
| 64
| Works
| "-m 2048 -vnc :0 -usbdevice tablet -smp 2 -std-vga" on qcow2
|-

| Windows Server 2008 (Datacenter)
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Windows Server 2008 (Datacenter)
| 32
| kvm-72
| Intel, AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Windows Vista Ultimate
| 64
| kvm-84
| Intel, AMD
| 64
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Vista Ultimate
| 32
| kvm-84
| Intel, AMD
| 64, 32
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Server 2003 x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows XP Pro x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows XP Pro
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows XP Pro
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel, AMD
| 64
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel
| 32
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Advanced Server
| 32
| kvm-44
| Intel
| 64
| Works
| use Qcow2 format.
|-

| Windows 98SE
| 32
| kvm-63
| Intel
| 32
| Fails
| by Alexey.E. (halts when booting HIMEM)
|-

| Windows 98SE
| 32
| kvm-80, 2.6.27.7
| AMD
| 64
| no way
| install crashes
|-

| Windows 95
| 32
| kvm-44, 2.6.23-rc8
| AMD
| 64, 32
| no way
|
|}

== Linux Family: Fedora/RedHat Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Fedora 11
| 64
| kvm-87
| Intel
| 64
| Fails
| Anaconda freezes
|-

| Fedora 11
| 32
| kvm-87
| Intel
| 64
| Works
|
|-

| Fedora 11 BETA
| 32, 64
| kvm-84
| Intel
| 64
| Fails
| by Alexey.E. Slowness and softlockups.
|-

|-
| Fedora 10
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E. Updated by Lennert.B.
|-

| Fedora 9
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 8
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 7
| 32, 64
| kvm-75
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 6
| 32
| kvm-26
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 5
| 32, 64
| kvm-12
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 4
| 64
|
| AMD
| 64
| Works, slightly high idle cpu
|by MichaelKarliner
|-

| Fedora 3
| 64
| kvm-78
| AMD
| 64
| Works
| by George Y. Requires noacpi in boot options
|-

| RHEL5
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| RHEL4
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| RHEL3
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| Red Hat Linux 9
| 32
| kvm-51
| Intel
| 64
| Works
| by Alexey.E.
|-

| Red Hat Linux 8
| 32
| kvm-64
| Intel
| 64
| Crashes
| Fails on init. by Frank.Q.
|-

| Red Hat Linux 7.3
| 32
| kvm-78
| AMD
| 64
| Works
| -no-kvm is required for installation
|-

| Red Hat Linux 7
| 32
| kvm-52
| Intel, AMD
| 64
| Crashes
| Fails on init. by Alexey.E.
|-

| Trixbox (CentOS)
| 32
| kvm-12
| Intel
| 64
| Works
|
|}

== Linux Family: Ubuntu/Debian Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Debian GNU/Linux 5.0
| 64
| kvm-88
| Intel, AMD
| 64
| Works
| 2009/10/22 by Christian Berendt / B1 Systems
|-

| Ubuntu 9.04
| 64
| kvm-84
| Intel
| 64
| Works
| It's actually Xubuntu but should be the same both block and net virtio devices working too
|-

| Ubuntu 8.10
| 32
| kvm-85
| Intel, AMD
| 32, 64
| Works
| by Peter.v.V.
|-

| Ubuntu 8.04 LTS
| 32, 64
| kvm-64
| Intel, AMD
| 32, 64
| Works
| by Alexey.E. (some issues with virtio)
|-

| Ubuntu 7.10
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 7.10 Server
| 64
| kvm-60
| AMD
| 64
| Works
| No framebuffer (black screen at first). Hit enter to start installer.
|-

| Ubuntu 7.10 Server
| 32
| kvm-60/61
| Intel
| 64
| Doesn't work
| Installer crashes (by Ryota Ozaki)
|-

| Ubuntu 7.04
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 6.06 LTS Server
| 32
| kvm-20
| Intel
| 32
| Works
| use -no-acpi
|-

| Debian Lenny 5.0
| 32, 64
| kvm-72/77
| Intel
| 64
| Works
|
|-

| Debian Etch 4.0
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| Intel
| 64, 32
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| AMD
| 64
| FAILS, workaround exists
| by Alexey.E. (manually choose i586 kernel, do not use default "k7" kernel)
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 32
| Works
|
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 64
| Mostly works
| Install hangs, will install via -no-kvm. Runs fine after
|-

| Xandros 3 OCE
| 32
| kvm-29
| Intel
| 64
| Works
| by Alexey.E.
|-

| KNOPPIX 5.1.1
| 32
| kvm-18
| Intel
| 64
| Works
| use nmi_watchdog=0 or nolapic kernel parameter to boot
|-

| Knoppix 5.2
| 32
| kvm-18
| Intel
| 32
| Works
|
|}

== Other Linux Distros ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| SUSE Linux Enterprise Server 11
| 32, 64
| kvm-88
| Intel, AMD
| 64
| Works
| 2009/10/22 by Christian Berendt / B1 Systems
|-

| SUSE Linux Enterprise Server 10
| 32
| kvm-88
| Intel, AMD
| 64
| Works
| 2009/10/22 by Christian Berendt / B1 Systems
|-

| openSUSE 11.1
| 32, 64
| kvm-88
| Intel, AMD
| 64
| Works
| 2009/10/22 by Christian Berendt / B1 Systems
|-

| openSUSE 11.1
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 11.0
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32
| kvm-57
| AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32/64
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| openSUSE 10.2
| 32/64
| kvm-28/kvm-51
| Intel
| 64
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 10.0
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 9.1
| 32
| kvm-72
| Intel/AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Slackware 12 .2
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 12
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 11
| 32
| kvm-15
| Intel
| 64
| Works
| using test26.s kernel
|-

| Qemu-Puppy 2.01-3
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| Qemu-Puppy 2.13-1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| SystemRescueCD 0.3.4
| 32
| kvm-18
| Intel
| 64
| Works
| Works fine, except for initial X-setting "cirrus" - changed to "vesa", then works.
|-

| Gentoo 2006.1
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Gentoo 2007.0
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Arch Linux (Duke)
|32
| kvm-17
|AMD
|64
|Works
|Host: 2.6.21-ARCH, guest: 2.6.22-rc5-ARCH says "booting paravirtualized kernel on bare hardware"
|-

| Mandrake Linux 9.2
|32
| kvm-51
|Intel
|64
| Works
| by Alexey.E.
|-

| Mandriva 2009
| 32/64
| kvm-75
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008.1
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2007
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Crux Linux 2.5
| 32
| kvm-82
| Intel
| 32
| Works
| Boots Automatically at 'Guest Install' stage. Installs without issue. by Chris P
|}

== UNIX Family: BSD ==
{|border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| OpenBSD 4.6
| 32
| kvm-84-7.6
| AMD
| 32
| Works
| Use the e1000 driver [-net nic,model=e1000]. Does not find the network after the installation (during install is fine) but disabling mpbios as suggested in 4.5 workaround fixes it.
|-

| OpenBSD 4.5
| 32
| kvm-85
| Intel
| 32
| Crashes
| Use the e1000 driver [-net nic,model=e1000] to avoid lockups and slow network speeds. Crashes after "setting tty flags" - Jaco van der Schyff
4.0 would hang on me at the same place if i booted /bsd.mp but not if i boot /bsd (uniprocessor kernel) - Buck <br/>
4.5 can be made to boot by disabling mpbios as described [http://scie.nti.st/2009/10/4/running-openbsd-4-5-in-kvm-on-ubuntu-linux-9-04 here]; this is a workaround though, not a fix - Maxim
|-

| OpenBSD 4.5
| 64
| kvm-84
| Intel
| 64
| Works
| Use e1000 drivers. Install from CD works, but then you must do the following at the next boot prompt: "bsd -c", "disable mpbios", then "quit"
Make this permanent by using "config -ef /bsd" as root, once everything has booted. -- Garry Dolley
|-

| OpenBSD 4.4
| 64
| kvm-78
| AMD
| 64
| Works
|
|-

| OpenBSD 4.2
| 32
| kvm-58
| Intel
| 32
| Works
|
|-

| OpenBSD 4.1
| 32
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| OpenBSD 4.0
| 64
| kvm-12
| Intel
| 64
| Works
|
|-

| OpenBSD 4.0
| 32
| kvm-16 + CVS
| Intel
| 64
| Works
|
|-

| FreeBSD 6.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| FreeBSD 6.2
| 64
| kvm-12
| AMD
| 64
| Works
|
|-

| FreeBSD 6.2
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| FreeBSD 6.3
| 32
| Fedora 8 - kvm-37-7.fc8
| Intel
| 64
| works
|
|-

|FreeBSD 6.3
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 6.3
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 7.0
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|32
|OpenSUSE 10.3 kvm-63
|AMD
|64
|works
| disk i/o issues? "ad0: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=XXXXXXX"
|-

| FreeBSD 7.0
| 64
| OpenSUSE 10.3 kvm-63
| AMD
| 64
| crashes after boot loader
|-

| FreeBSD 7.1
| 64
| kvm-84
| Intel
| 64
| Works
| sdl graphics mess up if using kvm, setup with -nokvm then use ssh or -nographics and serial console
|-

|FreeBSD 7.2
|64
|kvm-86-3
|Intel
|64
|Works, need to install from the DVD or CD image
|Damon Chesser, Jadase Staff
|-

| GNU/kFreeBSD
| 32
| kvm-84
| Intel
| 32
| Works
| kvm module must be loaded with oos_shadow=0
|-

|GNU/kFreeBSD
| 64
| kvm-15
| AMD
| 64
| Works
|
|-

| GNU/kFreeBSD
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-21
| AMD
| 64
| Works
|
|-

| NetBSD 4.0
| 32
| kvm-60
| Intel
| 64
| Works
| avoid hangup on boot with --no-acpi and network card timeout by trying out a different card, e.g. -net nic,model=ne2k_pci
|-

| NetBSD 5.0
| 64
| kvm-88
| Intel
| 64
| Crashes/hangs
| Install CD image will crash or hang, depending on if ACPI is enabled or not. NetBSD 4.0 workarounds ineffective.
|-

| PC-BSD 1.4
| 32
| kvm-56
| Intel
| 64
| Works
| By Alexey.E.
|-

| DragonflyBSD 1.10.1
| 32
| kvm-58
| Intel
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work; use -net nic,model=e1000 to avoid network timeouts
|-

| DragonflyBSD 2.2.1
| 32
| kvm-85
| Intel
| 64
| Works
| not tried X
|}

== UNIX Family: Solaris/OpenSolaris ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Solaris 10 U1
| 32
| kvm-12
| Intel
| 64
| Works
| later releases will detect the CPU is 64 bit capable and try to default to run a 64 bit kernel and fail, for those you have to override Solaris autodetection by adding "kernel/unix" to the kernel multiboot entry in GRUB
|-

| Solaris 10 U3
| 64
| kvm-58 + patch
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]
|-

| Nexenta Core 1.0
| 64
| kvm-61
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]. Use -m 512 -net nic,model=e1000
|-

| OpenSolaris 2008.05
| 64
| kvm-69
| Intel
| 64
| Works
| Use -m 512 -net nic,model=e1000
|-

| Milax 0.3.2
| 32
| kvm-62
| Intel
| 64
| Works
| Use the kvm option -net nic,model=rtl8139 and add atapi-cd-dma-enabled=0,atapi-other-dma-enabled=0 to the kernel line in the grub menu for older releases of Milax http://www.milax.org/ in version 0.3.2 choose the Qemu grub menu entry ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Belenix 0.7.1
| 64
| kvm-62
| Intel
| 64
| Works
| Note: older releases of Belenix only work in text mode; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Solaris 10 U6
| 32 & 64
| kvm-62
| Intel
| 64
| Mostly Works (see note)
| Note: the grub menu entry for Solaris 10 created by the installer is wrong, to make it work add kernel/unix to the line beginning with kernel ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| OpenSolaris 2008.11
| 64
| kvm-62
| Intel
| 64
|Works
| tested on Ubuntu 8.04.1 by BerndSchemmer
|}

== Other UNIX systems ==
{| border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Darwin 8.0.1
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| MINIX 3.1.2a
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| GNU hurd live CD (20051117)
| 32
| kvm-28
| Intel
| 32
| Works
| Seems to have networking problems.
|-

| GNU/Hurd (Debian K14)
| 32
| kvm-33
| Intel
| 32
| Works
| [http://kvm.qumranet.com/kvmwiki/Guest_Support_Status?action=AttachFile&do=get&target=hurd-k14.png screenshot]
|-

| GNU/Hurd (Debian K16)
| 32
| kvm-69
| AMD
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work
|}

== Others ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Haiku OS
| 32
| kvm-12
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-12
| AMD
| 64
| Works
| LiveCD tested. [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-58
| Intel
| 32
| Works
| LiveCD tested.
|-

| ReactOS 0.3.0
| 32
| kvm-14
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_reactos.png screenshot]
|-

| FreeDOS 1.0
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| MS DOS 6.22
| 32
| kvm-88
| Intel
| 64
| Works
| Works with "-cpu qemu32". Do not load emm386.exe inside config.sys [http://twitpic.com/dce6g screenshot]
|-

| MS DOS 5.0
| 32
| kvm-62
| Intel
| 64
| Works
| Installs and boots. Tested by Alan J.
|-

| Syllable 0.61
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Visopsys 0.62
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Plan 9
| 32
| kvm-68
| Intel
| 64
| Works
| needs -no-kvm-irqchip
|-

| FreeDOS 7 + Novell Netware 4.1
| 32
| kvm-83
| AMD
| 64
| Works
| tested by Ruediger G. Biernat / [http://flickr.com/photos/rgbiernat/3261075882/ screenshot]
|}

Guest Support Status

2009-10-22T18:57:38Z

Cberendt: added a few linux distributions on kvm-88

=Guest Support Status=

== Windows Family ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-
| Windows 2008 R2 RTM
| 64
| kvm-88
| Intel
| 64
| Works
| Installs and works with 1GB guest RAM. [http://twitpic.com/dxs0z/full screenshot]
|-

|-
| Windows 7 RTM
| 32, 64
| kvm-88
| Intel
| 64
| Works
| Installs and works with 1GB guest RAM. [http://twitpic.com/d3gqq/full screenshot]
|-

|-
| Windows 7 RC
| 64
| kvm-72+dfsg-5
| Intel
| 64
| Works
| Installs and works without any problem with 1GB guest RAM.
|-

|-
| Windows 7 Beta
| 64
| kvm-84
| AMD
| 64
| Works
| Installs and works without any problem with 512MB guest RAM.
|-

| Windows 7 Beta
| 32
| kvm-83
| Intel
| 32
| Works
| Installed in about 25-30 minutes and worked flawlessly on my ThinkPad T60 (1953-7EU) with 1.5G of RAM
|-

| Windows 7 Beta
| 32
| kvm-62
| AMD
| 64
| Works
| "-m 2048 -vnc :0 -usbdevice tablet -smp 2 -std-vga" on qcow2
|-

| Windows Server 2008 (Datacenter)
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Windows Server 2008 (Datacenter)
| 32
| kvm-72
| Intel, AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Windows Vista Ultimate
| 64
| kvm-84
| Intel, AMD
| 64
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Vista Ultimate
| 32
| kvm-84
| Intel, AMD
| 64, 32
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Server 2003 x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows XP Pro x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows XP Pro
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows XP Pro
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel, AMD
| 64
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel
| 32
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Advanced Server
| 32
| kvm-44
| Intel
| 64
| Works
| use Qcow2 format.
|-

| Windows 98SE
| 32
| kvm-63
| Intel
| 32
| Fails
| by Alexey.E. (halts when booting HIMEM)
|-

| Windows 98SE
| 32
| kvm-80, 2.6.27.7
| AMD
| 64
| no way
| install crashes
|-

| Windows 95
| 32
| kvm-44, 2.6.23-rc8
| AMD
| 64, 32
| no way
|
|}

== Linux Family: Fedora/RedHat Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Fedora 11
| 64
| kvm-87
| Intel
| 64
| Fails
| Anaconda freezes
|-

| Fedora 11
| 32
| kvm-87
| Intel
| 64
| Works
|
|-

| Fedora 11 BETA
| 32, 64
| kvm-84
| Intel
| 64
| Fails
| by Alexey.E. Slowness and softlockups.
|-

|-
| Fedora 10
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E. Updated by Lennert.B.
|-

| Fedora 9
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 8
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 7
| 32, 64
| kvm-75
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 6
| 32
| kvm-26
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 5
| 32, 64
| kvm-12
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 4
| 64
|
| AMD
| 64
| Works, slightly high idle cpu
|by MichaelKarliner
|-

| Fedora 3
| 64
| kvm-78
| AMD
| 64
| Works
| by George Y. Requires noacpi in boot options
|-

| RHEL5
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| RHEL4
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| RHEL3
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| Red Hat Linux 9
| 32
| kvm-51
| Intel
| 64
| Works
| by Alexey.E.
|-

| Red Hat Linux 8
| 32
| kvm-64
| Intel
| 64
| Crashes
| Fails on init. by Frank.Q.
|-

| Red Hat Linux 7.3
| 32
| kvm-78
| AMD
| 64
| Works
| -no-kvm is required for installation
|-

| Red Hat Linux 7
| 32
| kvm-52
| Intel, AMD
| 64
| Crashes
| Fails on init. by Alexey.E.
|-

| Trixbox (CentOS)
| 32
| kvm-12
| Intel
| 64
| Works
|
|}

== Linux Family: Ubuntu/Debian Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Ubuntu 9.04
| 64
| kvm-84
| Intel
| 64
| Works
| It's actually Xubuntu but should be the same both block and net virtio devices working too
|-

| Ubuntu 8.10
| 32
| kvm-85
| Intel, AMD
| 32, 64
| Works
| by Peter.v.V.
|-

| Ubuntu 8.04 LTS
| 32, 64
| kvm-64
| Intel, AMD
| 32, 64
| Works
| by Alexey.E. (some issues with virtio)
|-

| Ubuntu 7.10
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 7.10 Server
| 64
| kvm-60
| AMD
| 64
| Works
| No framebuffer (black screen at first). Hit enter to start installer.
|-

| Ubuntu 7.10 Server
| 32
| kvm-60/61
| Intel
| 64
| Doesn't work
| Installer crashes (by Ryota Ozaki)
|-

| Ubuntu 7.04
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 6.06 LTS Server
| 32
| kvm-20
| Intel
| 32
| Works
| use -no-acpi
|-

| Debian Lenny 5.0
| 32, 64
| kvm-72/77
| Intel
| 64
| Works
|
|-

| Debian Etch 4.0
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| Intel
| 64, 32
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| AMD
| 64
| FAILS, workaround exists
| by Alexey.E. (manually choose i586 kernel, do not use default "k7" kernel)
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 32
| Works
|
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 64
| Mostly works
| Install hangs, will install via -no-kvm. Runs fine after
|-

| Xandros 3 OCE
| 32
| kvm-29
| Intel
| 64
| Works
| by Alexey.E.
|-

| KNOPPIX 5.1.1
| 32
| kvm-18
| Intel
| 64
| Works
| use nmi_watchdog=0 or nolapic kernel parameter to boot
|-

| Knoppix 5.2
| 32
| kvm-18
| Intel
| 32
| Works
|
|}

== Other Linux Distros ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| SUSE Linux Enterprise Server 11
| 32, 64
| kvm-88
| Intel, AMD
| 64
| Works
| by Christian Berendt / B1 Systems
|-

| SUSE Linux Enterprise Server 10
| 32
| kvm-88
| Intel, AMD
| 64
| Works
| by Christian Berendt / B1 Systems
|-

| openSUSE 11.1
| 32, 64
| kvm-88
| Intel, AMD
| 64
| Works
| by Christian Berendt / B1 Systems
|-

| Debian GNU/Linux 5.0
| 64
| kvm-88
| Intel, AMD
| 64
| Works
| by Christian Berendt / B1 Systems
|-

| openSUSE 11.1
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 11.0
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32
| kvm-57
| AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32/64
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| openSUSE 10.2
| 32/64
| kvm-28/kvm-51
| Intel
| 64
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 10.0
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 9.1
| 32
| kvm-72
| Intel/AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Slackware 12 .2
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 12
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 11
| 32
| kvm-15
| Intel
| 64
| Works
| using test26.s kernel
|-

| Qemu-Puppy 2.01-3
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| Qemu-Puppy 2.13-1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| SystemRescueCD 0.3.4
| 32
| kvm-18
| Intel
| 64
| Works
| Works fine, except for initial X-setting "cirrus" - changed to "vesa", then works.
|-

| Gentoo 2006.1
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Gentoo 2007.0
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Arch Linux (Duke)
|32
| kvm-17
|AMD
|64
|Works
|Host: 2.6.21-ARCH, guest: 2.6.22-rc5-ARCH says "booting paravirtualized kernel on bare hardware"
|-

| Mandrake Linux 9.2
|32
| kvm-51
|Intel
|64
| Works
| by Alexey.E.
|-

| Mandriva 2009
| 32/64
| kvm-75
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008.1
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2007
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Crux Linux 2.5
| 32
| kvm-82
| Intel
| 32
| Works
| Boots Automatically at 'Guest Install' stage. Installs without issue. by Chris P
|}

== UNIX Family: BSD ==
{|border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| OpenBSD 4.6
| 32
| kvm-84-7.6
| AMD
| 32
| Works
| Use the e1000 driver [-net nic,model=e1000]. Does not find the network after the installation (during install is fine) but disabling mpbios as suggested in 4.5 workaround fixes it.
|-

| OpenBSD 4.5
| 32
| kvm-85
| Intel
| 32
| Crashes
| Use the e1000 driver [-net nic,model=e1000] to avoid lockups and slow network speeds. Crashes after "setting tty flags" - Jaco van der Schyff
4.0 would hang on me at the same place if i booted /bsd.mp but not if i boot /bsd (uniprocessor kernel) - Buck <br/>
4.5 can be made to boot by disabling mpbios as described [http://scie.nti.st/2009/10/4/running-openbsd-4-5-in-kvm-on-ubuntu-linux-9-04 here]; this is a workaround though, not a fix - Maxim
|-

| OpenBSD 4.5
| 64
| kvm-84
| Intel
| 64
| Works
| Use e1000 drivers. Install from CD works, but then you must do the following at the next boot prompt: "bsd -c", "disable mpbios", then "quit"
Make this permanent by using "config -ef /bsd" as root, once everything has booted. -- Garry Dolley
|-

| OpenBSD 4.4
| 64
| kvm-78
| AMD
| 64
| Works
|
|-

| OpenBSD 4.2
| 32
| kvm-58
| Intel
| 32
| Works
|
|-

| OpenBSD 4.1
| 32
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| OpenBSD 4.0
| 64
| kvm-12
| Intel
| 64
| Works
|
|-

| OpenBSD 4.0
| 32
| kvm-16 + CVS
| Intel
| 64
| Works
|
|-

| FreeBSD 6.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| FreeBSD 6.2
| 64
| kvm-12
| AMD
| 64
| Works
|
|-

| FreeBSD 6.2
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| FreeBSD 6.3
| 32
| Fedora 8 - kvm-37-7.fc8
| Intel
| 64
| works
|
|-

|FreeBSD 6.3
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 6.3
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 7.0
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|32
|OpenSUSE 10.3 kvm-63
|AMD
|64
|works
| disk i/o issues? "ad0: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=XXXXXXX"
|-

| FreeBSD 7.0
| 64
| OpenSUSE 10.3 kvm-63
| AMD
| 64
| crashes after boot loader
|-

| FreeBSD 7.1
| 64
| kvm-84
| Intel
| 64
| Works
| sdl graphics mess up if using kvm, setup with -nokvm then use ssh or -nographics and serial console
|-

|FreeBSD 7.2
|64
|kvm-86-3
|Intel
|64
|Works, need to install from the DVD or CD image
|Damon Chesser, Jadase Staff
|-

| GNU/kFreeBSD
| 32
| kvm-84
| Intel
| 32
| Works
| kvm module must be loaded with oos_shadow=0
|-

|GNU/kFreeBSD
| 64
| kvm-15
| AMD
| 64
| Works
|
|-

| GNU/kFreeBSD
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-21
| AMD
| 64
| Works
|
|-

| NetBSD 4.0
| 32
| kvm-60
| Intel
| 64
| Works
| avoid hangup on boot with --no-acpi and network card timeout by trying out a different card, e.g. -net nic,model=ne2k_pci
|-

| NetBSD 5.0
| 64
| kvm-88
| Intel
| 64
| Crashes/hangs
| Install CD image will crash or hang, depending on if ACPI is enabled or not. NetBSD 4.0 workarounds ineffective.
|-

| PC-BSD 1.4
| 32
| kvm-56
| Intel
| 64
| Works
| By Alexey.E.
|-

| DragonflyBSD 1.10.1
| 32
| kvm-58
| Intel
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work; use -net nic,model=e1000 to avoid network timeouts
|-

| DragonflyBSD 2.2.1
| 32
| kvm-85
| Intel
| 64
| Works
| not tried X
|}

== UNIX Family: Solaris/OpenSolaris ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Solaris 10 U1
| 32
| kvm-12
| Intel
| 64
| Works
| later releases will detect the CPU is 64 bit capable and try to default to run a 64 bit kernel and fail, for those you have to override Solaris autodetection by adding "kernel/unix" to the kernel multiboot entry in GRUB
|-

| Solaris 10 U3
| 64
| kvm-58 + patch
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]
|-

| Nexenta Core 1.0
| 64
| kvm-61
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]. Use -m 512 -net nic,model=e1000
|-

| OpenSolaris 2008.05
| 64
| kvm-69
| Intel
| 64
| Works
| Use -m 512 -net nic,model=e1000
|-

| Milax 0.3.2
| 32
| kvm-62
| Intel
| 64
| Works
| Use the kvm option -net nic,model=rtl8139 and add atapi-cd-dma-enabled=0,atapi-other-dma-enabled=0 to the kernel line in the grub menu for older releases of Milax http://www.milax.org/ in version 0.3.2 choose the Qemu grub menu entry ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Belenix 0.7.1
| 64
| kvm-62
| Intel
| 64
| Works
| Note: older releases of Belenix only work in text mode; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Solaris 10 U6
| 32 & 64
| kvm-62
| Intel
| 64
| Mostly Works (see note)
| Note: the grub menu entry for Solaris 10 created by the installer is wrong, to make it work add kernel/unix to the line beginning with kernel ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| OpenSolaris 2008.11
| 64
| kvm-62
| Intel
| 64
|Works
| tested on Ubuntu 8.04.1 by BerndSchemmer
|}

== Other UNIX systems ==
{| border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Darwin 8.0.1
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| MINIX 3.1.2a
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| GNU hurd live CD (20051117)
| 32
| kvm-28
| Intel
| 32
| Works
| Seems to have networking problems.
|-

| GNU/Hurd (Debian K14)
| 32
| kvm-33
| Intel
| 32
| Works
| [http://kvm.qumranet.com/kvmwiki/Guest_Support_Status?action=AttachFile&do=get&target=hurd-k14.png screenshot]
|-

| GNU/Hurd (Debian K16)
| 32
| kvm-69
| AMD
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work
|}

== Others ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Haiku OS
| 32
| kvm-12
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-12
| AMD
| 64
| Works
| LiveCD tested. [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-58
| Intel
| 32
| Works
| LiveCD tested.
|-

| ReactOS 0.3.0
| 32
| kvm-14
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_reactos.png screenshot]
|-

| FreeDOS 1.0
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| MS DOS 6.22
| 32
| kvm-88
| Intel
| 64
| Works
| Works with "-cpu qemu32". Do not load emm386.exe inside config.sys [http://twitpic.com/dce6g screenshot]
|-

| MS DOS 5.0
| 32
| kvm-62
| Intel
| 64
| Works
| Installs and boots. Tested by Alan J.
|-

| Syllable 0.61
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Visopsys 0.62
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Plan 9
| 32
| kvm-68
| Intel
| 64
| Works
| needs -no-kvm-irqchip
|-

| FreeDOS 7 + Novell Netware 4.1
| 32
| kvm-83
| AMD
| 64
| Works
| tested by Ruediger G. Biernat / [http://flickr.com/photos/rgbiernat/3261075882/ screenshot]
|}

Guest Support Status

2009-10-22T18:53:05Z

Cberendt: added SUSE Linux Enterprise Server 11

=Guest Support Status=

== Windows Family ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-
| Windows 2008 R2 RTM
| 64
| kvm-88
| Intel
| 64
| Works
| Installs and works with 1GB guest RAM. [http://twitpic.com/dxs0z/full screenshot]
|-

|-
| Windows 7 RTM
| 32, 64
| kvm-88
| Intel
| 64
| Works
| Installs and works with 1GB guest RAM. [http://twitpic.com/d3gqq/full screenshot]
|-

|-
| Windows 7 RC
| 64
| kvm-72+dfsg-5
| Intel
| 64
| Works
| Installs and works without any problem with 1GB guest RAM.
|-

|-
| Windows 7 Beta
| 64
| kvm-84
| AMD
| 64
| Works
| Installs and works without any problem with 512MB guest RAM.
|-

| Windows 7 Beta
| 32
| kvm-83
| Intel
| 32
| Works
| Installed in about 25-30 minutes and worked flawlessly on my ThinkPad T60 (1953-7EU) with 1.5G of RAM
|-

| Windows 7 Beta
| 32
| kvm-62
| AMD
| 64
| Works
| "-m 2048 -vnc :0 -usbdevice tablet -smp 2 -std-vga" on qcow2
|-

| Windows Server 2008 (Datacenter)
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Windows Server 2008 (Datacenter)
| 32
| kvm-72
| Intel, AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Windows Vista Ultimate
| 64
| kvm-84
| Intel, AMD
| 64
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Vista Ultimate
| 32
| kvm-84
| Intel, AMD
| 64, 32
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Server 2003 x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows XP Pro x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows XP Pro
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows XP Pro
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel, AMD
| 64
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel
| 32
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Advanced Server
| 32
| kvm-44
| Intel
| 64
| Works
| use Qcow2 format.
|-

| Windows 98SE
| 32
| kvm-63
| Intel
| 32
| Fails
| by Alexey.E. (halts when booting HIMEM)
|-

| Windows 98SE
| 32
| kvm-80, 2.6.27.7
| AMD
| 64
| no way
| install crashes
|-

| Windows 95
| 32
| kvm-44, 2.6.23-rc8
| AMD
| 64, 32
| no way
|
|}

== Linux Family: Fedora/RedHat Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Fedora 11
| 64
| kvm-87
| Intel
| 64
| Fails
| Anaconda freezes
|-

| Fedora 11
| 32
| kvm-87
| Intel
| 64
| Works
|
|-

| Fedora 11 BETA
| 32, 64
| kvm-84
| Intel
| 64
| Fails
| by Alexey.E. Slowness and softlockups.
|-

|-
| Fedora 10
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E. Updated by Lennert.B.
|-

| Fedora 9
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 8
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 7
| 32, 64
| kvm-75
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 6
| 32
| kvm-26
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 5
| 32, 64
| kvm-12
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 4
| 64
|
| AMD
| 64
| Works, slightly high idle cpu
|by MichaelKarliner
|-

| Fedora 3
| 64
| kvm-78
| AMD
| 64
| Works
| by George Y. Requires noacpi in boot options
|-

| RHEL5
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| RHEL4
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| RHEL3
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| Red Hat Linux 9
| 32
| kvm-51
| Intel
| 64
| Works
| by Alexey.E.
|-

| Red Hat Linux 8
| 32
| kvm-64
| Intel
| 64
| Crashes
| Fails on init. by Frank.Q.
|-

| Red Hat Linux 7.3
| 32
| kvm-78
| AMD
| 64
| Works
| -no-kvm is required for installation
|-

| Red Hat Linux 7
| 32
| kvm-52
| Intel, AMD
| 64
| Crashes
| Fails on init. by Alexey.E.
|-

| Trixbox (CentOS)
| 32
| kvm-12
| Intel
| 64
| Works
|
|}

== Linux Family: Ubuntu/Debian Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Ubuntu 9.04
| 64
| kvm-84
| Intel
| 64
| Works
| It's actually Xubuntu but should be the same both block and net virtio devices working too
|-

| Ubuntu 8.10
| 32
| kvm-85
| Intel, AMD
| 32, 64
| Works
| by Peter.v.V.
|-

| Ubuntu 8.04 LTS
| 32, 64
| kvm-64
| Intel, AMD
| 32, 64
| Works
| by Alexey.E. (some issues with virtio)
|-

| Ubuntu 7.10
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 7.10 Server
| 64
| kvm-60
| AMD
| 64
| Works
| No framebuffer (black screen at first). Hit enter to start installer.
|-

| Ubuntu 7.10 Server
| 32
| kvm-60/61
| Intel
| 64
| Doesn't work
| Installer crashes (by Ryota Ozaki)
|-

| Ubuntu 7.04
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 6.06 LTS Server
| 32
| kvm-20
| Intel
| 32
| Works
| use -no-acpi
|-

| Debian Lenny 5.0
| 32, 64
| kvm-72/77
| Intel
| 64
| Works
|
|-

| Debian Etch 4.0
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| Intel
| 64, 32
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| AMD
| 64
| FAILS, workaround exists
| by Alexey.E. (manually choose i586 kernel, do not use default "k7" kernel)
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 32
| Works
|
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 64
| Mostly works
| Install hangs, will install via -no-kvm. Runs fine after
|-

| Xandros 3 OCE
| 32
| kvm-29
| Intel
| 64
| Works
| by Alexey.E.
|-

| KNOPPIX 5.1.1
| 32
| kvm-18
| Intel
| 64
| Works
| use nmi_watchdog=0 or nolapic kernel parameter to boot
|-

| Knoppix 5.2
| 32
| kvm-18
| Intel
| 32
| Works
|
|}

== Other Linux Distros ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| SUSE Linux Enterprise Server 11
| 32, 64
| kvm-88
| Intel, AMD
| 64
| Works
| by Christian Berendt / B1 Systems
|-

| openSUSE 11.1
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 11.0
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32
| kvm-57
| AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32/64
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| openSUSE 10.2
| 32/64
| kvm-28/kvm-51
| Intel
| 64
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 10.0
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 9.1
| 32
| kvm-72
| Intel/AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Slackware 12 .2
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 12
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 11
| 32
| kvm-15
| Intel
| 64
| Works
| using test26.s kernel
|-

| Qemu-Puppy 2.01-3
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| Qemu-Puppy 2.13-1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| SystemRescueCD 0.3.4
| 32
| kvm-18
| Intel
| 64
| Works
| Works fine, except for initial X-setting "cirrus" - changed to "vesa", then works.
|-

| Gentoo 2006.1
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Gentoo 2007.0
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Arch Linux (Duke)
|32
| kvm-17
|AMD
|64
|Works
|Host: 2.6.21-ARCH, guest: 2.6.22-rc5-ARCH says "booting paravirtualized kernel on bare hardware"
|-

| Mandrake Linux 9.2
|32
| kvm-51
|Intel
|64
| Works
| by Alexey.E.
|-

| Mandriva 2009
| 32/64
| kvm-75
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008.1
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2007
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Crux Linux 2.5
| 32
| kvm-82
| Intel
| 32
| Works
| Boots Automatically at 'Guest Install' stage. Installs without issue. by Chris P
|}

== UNIX Family: BSD ==
{|border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| OpenBSD 4.6
| 32
| kvm-84-7.6
| AMD
| 32
| Works
| Use the e1000 driver [-net nic,model=e1000]. Does not find the network after the installation (during install is fine) but disabling mpbios as suggested in 4.5 workaround fixes it.
|-

| OpenBSD 4.5
| 32
| kvm-85
| Intel
| 32
| Crashes
| Use the e1000 driver [-net nic,model=e1000] to avoid lockups and slow network speeds. Crashes after "setting tty flags" - Jaco van der Schyff
4.0 would hang on me at the same place if i booted /bsd.mp but not if i boot /bsd (uniprocessor kernel) - Buck <br/>
4.5 can be made to boot by disabling mpbios as described [http://scie.nti.st/2009/10/4/running-openbsd-4-5-in-kvm-on-ubuntu-linux-9-04 here]; this is a workaround though, not a fix - Maxim
|-

| OpenBSD 4.5
| 64
| kvm-84
| Intel
| 64
| Works
| Use e1000 drivers. Install from CD works, but then you must do the following at the next boot prompt: "bsd -c", "disable mpbios", then "quit"
Make this permanent by using "config -ef /bsd" as root, once everything has booted. -- Garry Dolley
|-

| OpenBSD 4.4
| 64
| kvm-78
| AMD
| 64
| Works
|
|-

| OpenBSD 4.2
| 32
| kvm-58
| Intel
| 32
| Works
|
|-

| OpenBSD 4.1
| 32
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| OpenBSD 4.0
| 64
| kvm-12
| Intel
| 64
| Works
|
|-

| OpenBSD 4.0
| 32
| kvm-16 + CVS
| Intel
| 64
| Works
|
|-

| FreeBSD 6.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| FreeBSD 6.2
| 64
| kvm-12
| AMD
| 64
| Works
|
|-

| FreeBSD 6.2
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| FreeBSD 6.3
| 32
| Fedora 8 - kvm-37-7.fc8
| Intel
| 64
| works
|
|-

|FreeBSD 6.3
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 6.3
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 7.0
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|32
|OpenSUSE 10.3 kvm-63
|AMD
|64
|works
| disk i/o issues? "ad0: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=XXXXXXX"
|-

| FreeBSD 7.0
| 64
| OpenSUSE 10.3 kvm-63
| AMD
| 64
| crashes after boot loader
|-

| FreeBSD 7.1
| 64
| kvm-84
| Intel
| 64
| Works
| sdl graphics mess up if using kvm, setup with -nokvm then use ssh or -nographics and serial console
|-

|FreeBSD 7.2
|64
|kvm-86-3
|Intel
|64
|Works, need to install from the DVD or CD image
|Damon Chesser, Jadase Staff
|-

| GNU/kFreeBSD
| 32
| kvm-84
| Intel
| 32
| Works
| kvm module must be loaded with oos_shadow=0
|-

|GNU/kFreeBSD
| 64
| kvm-15
| AMD
| 64
| Works
|
|-

| GNU/kFreeBSD
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-21
| AMD
| 64
| Works
|
|-

| NetBSD 4.0
| 32
| kvm-60
| Intel
| 64
| Works
| avoid hangup on boot with --no-acpi and network card timeout by trying out a different card, e.g. -net nic,model=ne2k_pci
|-

| NetBSD 5.0
| 64
| kvm-88
| Intel
| 64
| Crashes/hangs
| Install CD image will crash or hang, depending on if ACPI is enabled or not. NetBSD 4.0 workarounds ineffective.
|-

| PC-BSD 1.4
| 32
| kvm-56
| Intel
| 64
| Works
| By Alexey.E.
|-

| DragonflyBSD 1.10.1
| 32
| kvm-58
| Intel
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work; use -net nic,model=e1000 to avoid network timeouts
|-

| DragonflyBSD 2.2.1
| 32
| kvm-85
| Intel
| 64
| Works
| not tried X
|}

== UNIX Family: Solaris/OpenSolaris ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Solaris 10 U1
| 32
| kvm-12
| Intel
| 64
| Works
| later releases will detect the CPU is 64 bit capable and try to default to run a 64 bit kernel and fail, for those you have to override Solaris autodetection by adding "kernel/unix" to the kernel multiboot entry in GRUB
|-

| Solaris 10 U3
| 64
| kvm-58 + patch
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]
|-

| Nexenta Core 1.0
| 64
| kvm-61
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]. Use -m 512 -net nic,model=e1000
|-

| OpenSolaris 2008.05
| 64
| kvm-69
| Intel
| 64
| Works
| Use -m 512 -net nic,model=e1000
|-

| Milax 0.3.2
| 32
| kvm-62
| Intel
| 64
| Works
| Use the kvm option -net nic,model=rtl8139 and add atapi-cd-dma-enabled=0,atapi-other-dma-enabled=0 to the kernel line in the grub menu for older releases of Milax http://www.milax.org/ in version 0.3.2 choose the Qemu grub menu entry ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Belenix 0.7.1
| 64
| kvm-62
| Intel
| 64
| Works
| Note: older releases of Belenix only work in text mode; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Solaris 10 U6
| 32 & 64
| kvm-62
| Intel
| 64
| Mostly Works (see note)
| Note: the grub menu entry for Solaris 10 created by the installer is wrong, to make it work add kernel/unix to the line beginning with kernel ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| OpenSolaris 2008.11
| 64
| kvm-62
| Intel
| 64
|Works
| tested on Ubuntu 8.04.1 by BerndSchemmer
|}

== Other UNIX systems ==
{| border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Darwin 8.0.1
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| MINIX 3.1.2a
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| GNU hurd live CD (20051117)
| 32
| kvm-28
| Intel
| 32
| Works
| Seems to have networking problems.
|-

| GNU/Hurd (Debian K14)
| 32
| kvm-33
| Intel
| 32
| Works
| [http://kvm.qumranet.com/kvmwiki/Guest_Support_Status?action=AttachFile&do=get&target=hurd-k14.png screenshot]
|-

| GNU/Hurd (Debian K16)
| 32
| kvm-69
| AMD
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work
|}

== Others ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Haiku OS
| 32
| kvm-12
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-12
| AMD
| 64
| Works
| LiveCD tested. [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-58
| Intel
| 32
| Works
| LiveCD tested.
|-

| ReactOS 0.3.0
| 32
| kvm-14
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_reactos.png screenshot]
|-

| FreeDOS 1.0
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| MS DOS 6.22
| 32
| kvm-88
| Intel
| 64
| Works
| Works with "-cpu qemu32". Do not load emm386.exe inside config.sys [http://twitpic.com/dce6g screenshot]
|-

| MS DOS 5.0
| 32
| kvm-62
| Intel
| 64
| Works
| Installs and boots. Tested by Alan J.
|-

| Syllable 0.61
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Visopsys 0.62
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Plan 9
| 32
| kvm-68
| Intel
| 64
| Works
| needs -no-kvm-irqchip
|-

| FreeDOS 7 + Novell Netware 4.1
| 32
| kvm-83
| AMD
| 64
| Works
| tested by Ruediger G. Biernat / [http://flickr.com/photos/rgbiernat/3261075882/ screenshot]
|}

FAQ

2009-05-11T19:02:57Z

Cberendt: fixed link

=FAQ=

== Preparing to use kvm ==
=== What do I need to use kvm? ===
You will need an x86 machine running a recent Linux kernel on an Intel processor with VT (virtualization technology) extensions, or an AMD processor with SVM extensions (also called AMD-V). Xen has a [http://wiki.xensource.com/xenwiki/HVM_Compatible_Processors complete list] of compatible processors.

----------
=== Are 64bits processors supported under kvm? ===
Yes they are supported and will allow you to run 32bits and 64 bits clients.

See also '''Can kvm run a 32-bit guest on a 64-bit host? What about PAE?''' below.

----------

=== What is Intel VT / AMD-V / hvm? ===
[http://www.intel.com/technology/itj/2006/v10i3/1-hardware/6-vt-x-vt-i-solutions.htm Intel VT] and [http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_8826_14287,00.html AMD's AMD-V] are instruction set extensions that provide hardware assistance to virtual machine monitors. They enable running fully isolated virtual machines at native hardware speeds, for some workloads.

HVM (for Hardware Virtual Machine) is a vendor-neutral term often used to designate the x86 instruction set extensions.

----------

=== How can I tell if I have Intel VT or AMD-V? ===
With a recent enough Linux kernel, run the command:

. egrep '^flags.*(vmx|svm)' /proc/cpuinfo

If something shows up, you have VT. You can also check the processor model name (in `/proc/cpuinfo`) in the vendor's web site.

Note:

* Some manufacturers disable VT in the machine's BIOS, in such a way that it cannot be re-enabled.
* `/proc/cpuinfo` only shows virtualization capabilities starting with Linux 2.6.15 (Intel) and Linux 2.6.16 (AMD). Use the `uname -r` command to query your kernel version.
In case of doubt, contact your hardware vendor.

----------

=== "KVM: disabled by BIOS" error ===
Check if there is an option to enable it in the BIOS. If not, look for a more recent BIOS on the vendor's web site.

Note:

* On some hardware (e-g HP nx6320), you need to power-off/power-on the machine after enabling virtualisation in the BIOS.
* Enabling some BIOS features may break VT support on some hardware (e-g Enabling Intel AMT on a Thinkpad T500 will prevent kvm-intel from loading with "disabled by bios")

----------

=== How can I use AMD-V extension? ===
modprobe kvm-amd

----------

=== What user space tools does kvm use? ===
kvm uses a slightly modified [http://www.qemu.com/ qemu] program to instantiate the virtual machine. Once running, a virtual machine is just a regular process. You can use `top(1), kill(1), taskset(1)` and similar tools to manage virtual machines.

----------

=== What virtual disk formats can kvm use? ===
kvm inherits a wealth of disk formats support from qemu; it supports raw images, the native qemu format (qcow), VMware format, and many more.

----------

=== Are there management tools available to help me manage my virtual machines? ===
Yes. Please see the [[Management Tools]] page for some links.

----------

== Using kvm ==
=== How can I use kvm with a non-privileged user? ===
The cleanest way is probably to create a group, say ''kvm'', and add the user(s) to that group. Then you will need change /dev/kvm to owned by group ''kvm''.

On a system that runs udev, you will probably need to add the following line somewhere in your udev configuration so it will automatically give the right group to the newly created device (i-e for ubuntu add a line to ''/etc/udev/rules.d/40-permissions.rules'').

KERNEL=="kvm", GROUP="kvm"

----------

=== Is KVM stable? ===
The good news is that more and more developers and testers use KVM each passing day and for the most part, it works. KVM is a very young project and constantly evolving to add new features and more hardware support. Given the fervent pace of development, it's very likely that we're introducing new bugs at a fast pace as well, however small they might be. We would encourage our users to report any bug(s) they encounter so that we can continue making KVM better and stabler with each commit.

----------

=== That's alright, but can I really use it for my daily use? ===
Sure. We continuously run the most often-used OSes and configurations and if anything breaks for the developers, it's fixed as soon as it was broken. See the [[Guest Support Status]] and [[Host Support Status]] pages to find out more. Please update them with success stories so that new users would benefit from the experience of the community.

----------

=== How about production use? ===
For production use, it's recommended you use the kvm modules shipped by the distribution you're using to ensure stability. As mentioned above, it's tempting to use new features, but you never know of (unwanted) surprises hidden away. It'll be best if you can run the development snapshots with non-critical production load, so that the latest releases are stable for you when you decide to deploy them.

----------

=== What happens if I kill -9 a VM process? ===
From the guest's perspective, it is as if you yanked the power cord out. From the host's perspective, the process is killed and all resources it uses are reclaimed.

----------

=== I need help to setup the network for my guest ===
You can have a look to the [[Networking]] page of this wiki for informations on the most classical networking setup for the guests. You can also refer to the Qemu documentation.

----------

=== Where can I find more documention... ===
Most usability issues are covered in the QEMU [http://bellard.org/qemu/user-doc.html documentation]. There is also an extensive [http://kidsquid.com/cgi-bin/moin.cgi/FrequentlyAskedQuestions FAQ].

----------

== Troubleshooting ==
=== How can I check that I'm not falling back to qemu with no hardware acceleration? ===

If you think that you might no be using the hardware acceleration provided by the kvm module, here are a few steps to help you check this.

First of all, check that you don't have messages such as:

qemu-system-x86_64 -hda myvm.qcow2
open /dev/kvm: No such file or directory
Could not initialize KVM, will disable KVM support

In that case, you can check that:
* the modules are correctly loaded <code>lsmod|grep kvm
* you don't have a "KVM: disabled by BIOS" line in the output of dmesg
* /dev/kvm exists and you have the correct rights to use it

Other ways to do the diagnostic:
* if you have access to the qemu monitor (Ctrl-Alt-2, use Ctrl-Alt-1 to get back to the VM display), enter the "info kvm" command and it should respond with "KVM support: enabled"
* the right-end columns of the output from <code>lsmod|grep kvm</code> on the host system, once the VM is started should show only non zero values. The value on the line corresponding to the architecture specific module (e-g kvm_intel, kvm_amd) show the number of VM using the module. For instance, if I have 2 VM running using the kvm module on a machine with vt, it will report:

lsmod|grep kvm
kvm_intel 44896 2
kvm 159656 1 kvm_intel

=== "rect too big" Message when using VNC Display ===
When connection to a VNC Terminal, a "rect too big" message appears, and the VNC Session disconnects.

This might happen, when a VNC Client (for example RealVNC / xvnc4viewer) chooses ZRLE Encoding. Simple choose Hextile Encoding in the options of your VNC Client, and the Problem should be resolved.

----------
'''How do I set up the network such that my guest is accessible from other machines?''' or

=== My guest network is stuck what should I do? ===
kvm uses qemu for its device emulation. Consult the [http://kidsquid.com/cgi-bin/moin.cgi/QemuNetwork qemu network wiki page] for detailed network setup instructions.

One would probably be interested in the Root Networking Mode page and the Network Bridge page.

----------

=== I get an "Exception 13" or "Exception 12" message while booting a guest OS on my Intel host ===
See the [[Intel Real Mode Emulation Problems]] page.

----------
=== I get "rtc interrupts lost" messages, and the guest is very slow? ===
Try setting <code>CONFIG_HPET_EMULATE_RTC=y</code> in your host <code>.config</code>.

----------

=== I have VMware/Parallels/VirtualBox installed and when I modprobe KVM, my system deadlocks. ===
Neither Intel VT nor AMD-V provide a mechanism to determine whether software is currently using the hardware virtualization extensions. This means that if you have two kernel modules loaded attempting to use hardware virtualization extensions, very bad things will happen. If you are using another type of virtualization software and experience any sort of weirdness with KVM, make sure you can reproduce the problem without the kernel modules for that software loaded before you report a bug in KVM.

----------

=== There's nothing on QEMU/kvm screen, but it's not hanged! I'm trying to install Kubuntu. ===
Try to run kvm with -std-vga option. It helps if guest operating system uses framebuffer mode like Kubuntu/Ubuntu.

----------

=== When I click the guest operating system window, mouse is grabbed. How can I get mouse to not to do that? OR Mouse doesn't show up / doesn't work in the guest. What do I do? ===
From #qemu wiki, try to run kvm/qemu with

-usb -usbdevice tablet
If that doesn't work, try this:

$ export SDL_VIDEO_X11_DGAMOUSE=0
(from http://wiki.clug.org.za/wiki/QEMU_mouse_not_working )

----------

== General kvm information ==
=== What is the difference between kvm and Xen? ===
Xen is an external hypervisor; it assumes control of the machine and divides resources among guests. On the other hand, kvm is part of Linux and uses the regular Linux scheduler and memory management. This means that kvm is much smaller and simpler to use.

kvm only run on processors that supports x86 hvm (vt/svm instructions set) whereas Xen also allows running modified operating systems on non-hvm x86 processors using a technique called paravirtualisation. kvm does not support paravirtualization for cpu but may support paravirtualization for device drivers to improve I/O performances.

----------

=== What is the difference between kvm and VMWare? ===
VMware is a proprietary product. kvm is Free Software released under the GPL.

----------

=== What is the difference between kvm and QEMU? ===
Qemu uses emulation; kvm uses processor extensions (HVM) for virtualization.

----------

=== Do you have a port of kvm for Windows? ===
Not in this release.

----------

=== What kernel version does it work with? ===
It depends on what version of kvm you are using. The last release of kvm should work with any recent kernel (2.6.17 and above), older releases even older kernels.

----------

=== How much RAM do I need? ===
You will need enough memory to let the guest run comfortably while keeping enough for the host. 1GB is probably a minimum configuration for the host OS.

----------

=== Is dynamic use of RAM for guest operating system supported? ===
Yes. If you set -m 6144, guest can get a maximum of 6GB of RAM, but doesn't necessarily uses all. PLease note however that the usual platform limits will apply so you won't be able to see more than 4GB of RAM on a 32 bits guest unless you use PAE.

----------

=== What OSs can I run inside kvm VM? ===
Several. See the [[Guest Support Status]] page for details. Note that several Linux flavors are known to hang on Intel processors during startup. Workaround is to disable splashscreens in grub.

----------

=== Does kvm support a live migration feature to move virtual machines from one host to another without downtime? ===
Yes. See the [[Migration]] page for details.

----------

=== Does kvm support live migration from an AMD host to an Intel host and back? ===
Yes. There may be issues on 32-bit Intel hosts which don't support NX (or XD), but for 64-bit hosts back and forth migration should work well. Migration of 32-bit guests should work between 32-bit hosts and 64-bit hosts.
If one of your hosts does not support NX, you may consider disabling NX when starting the guest on a NX-capable system. You can do it by passing "-cpu qemu64,-nx" parameter to the guest.

----------

=== Can kvm run a 32-bit guest on a 64-bit host? What about PAE? ===
kvm supports 32-bit guests on 64-bit hosts, and any combination of PAE and non-PAE guests and hosts. The only unsupported combination is a 64-bit guest on a 32-bit host.

If you are running a Windows Virtual Machine and have problems enabling PAE in your guest see the [[Windows PAE Workaround]] page.

----------

=== Is it possible to use USB devices with a guest OS? ===
Yes, look up how to do it with qemu, it's the same way.

----------

=== Can I have higher or widescreen resolutions (eg 1680 x 1050) in kvm? ===
Support for higher resolutions was added in kvm-59, but some bugs were left until the release of kvm-62. Use the -std-vga parameter while starting the VM.

If the resolution you want to use is not available, you can patch the corresponding source files (see http://article.gmane.org/gmane.comp.emulators.kvm.devel/13557 as a reference), or send a mail to the kvm mailing list if you are not able to patch the source yourself.

When using Windows as guest OS you might want to use the driver from the VBEMP x86 project (http://www.geocities.com/bearwindows/vbemp.htm).

----------

=== Does kvm support SMP hosts? ===
Yes.

----------

=== Does kvm support SMP guests? ===
Yes. Up to 16 CPUs can be specified using the -smp option.

----------

=== Is the name 'kvm' trademarked? ===
No.

----------

Talk:Main Page

2009-05-11T19:00:43Z

Cberendt:

Does KVM officially support OVF? Or the greater VMAN specification? Trying to get an official confirmation that KVM supports OVF or will in the future, and if in the future, when is it expected?

= KVM-Forum =

Is it possible to remove the sections KVM Forum 2007 and 2008 from the main-site and put them on an extra site? I don't understand, why they are there.. --[[User:Cberendt|Cberendt]] 17:17, 9 May 2009 (EDT)

I've moved the KVM-Forum stuff to a separate page and linked it on the front-site. I think there should be a link on the left site, not on the front-site. --[[User:Cberendt|Cberendt]] 15:00, 11 May 2009 (EDT)

Talk:Guest Support Status

2009-05-11T18:56:30Z

Cberendt:

= Reworking =

I don't like the status-page. At the moment it's only a very long list and not very informative. For example, there is no timestamp, sometimes no author of an entry. There is no hint to the testset. No kernel-version, only the kvm-version. And so on. I think we've to rework this site. We've to do system-tests with every new release of the kvm on a set of linux-kernels and cpus. There is a nice set of tests with the KVM-Autotest-Suite... I hope someone is reading here, so that we can start a disucssion about this topic :) --[[User:Cberendt|Cberendt]] 17:28, 9 May 2009 (EDT)

I agree with your assessment. I have recently looked at this page and felt that it was a bit overwhelming to get good information from and also know that it probably can easily get out of date, since the people that can help improve it might feel that it is not worth it. Maybe you could suggest a new breakdown, maybe some helpful categories, an approach to get to cleaner, more organized tables? It would be nice to be able to know that a particular guest works on various kvm versions (or not) and scenarios, and, as you mentioned above, more information on more specific details -- [[User:Deshantm|Deshantm]] 23:50, 9 May 2009 (EDT)

I've created a draft [[Guest_Support_Status:Example|here]]. The list of the detailled status has to be completed and we've to describe the tests a little bit. I think that this is the right way. I'll create a note to the [[Guest Support Status]] page, maybe someone else has a good ideas :) --[[User:Cberendt|Cberendt]] 14:56, 11 May 2009 (EDT)

Guest Support Status:Example

2009-05-11T18:51:26Z

Cberendt:

= Example =

{|
|Operating System
|Bitness guest / Bitness host
|Status
|KVM-Version
|-
|Example
|64 Bit / 64 Bit
|works / not working / working with a few problems
|85
|-
|}

== Example ==

'''Status''': works / not working / working with a few problems

{|
|'''Guest Operating System'''
|Example
|-
|'''tested by'''
|Foobar <foo@bar.de>
|-
|'''Timestamp'''
|2009-05-05
|-
|'''Guest bitness'''
|64
|-
|'''KVM-version'''
|85
|-
|'''Host Operating System'''
|openSUSE 11.1
|-
|'''Host hardware'''
|Intel(R) Atom(TM) CPU N270 @ 1.60GHz
|-
|'''Host bitness'''
|64
|-
|}

=== Detailled status ===

{|
|VNC
|works / not working / not tested
|comment
|-
|Migration
|works / not working / not tested
|comment
|-
|virtio
|works / not working / not tested
|comment
|-
|Intel VT-d
|works / not working / not tested
|comment
|-
|AMD IOMMU
|works / not working / not tested
|comment
|-

|}

To be continued...

=== Notes ===

Here is room for some notes to the test...

Guest Support Status:Example

2009-05-11T18:50:09Z

Cberendt:

= Example =

{|
|Operating System
|Bitness guest / Bitness host
|Status
|KVM-Version
|-
|Example
|64 Bit / 64 Bit
|works / not working / working with a few problems
|85
|-
|}

== Example ==

'''Status''': works / not working / working with a few problems

{|
|'''Guest Operating System'''
|Example
|-
|'''tested by'''
|Foobar <foo@bar.de>
|-
|'''Timestamp'''
|2009-05-05
|-
|'''Guest bitness'''
|64
|-
|'''KVM-version'''
|85
|-
|'''Host Operating System'''
|openSUSE 11.1
|-
|'''Host hardware'''
|Intel(R) Atom(TM) CPU N270 @ 1.60GHz
|-
|'''Host bitness'''
|64
|-
|}

=== Detailled status ===

{|
|VNC
|works / not working
|comment
|-
|virtio
|works / not working
|comment
|-

|}

To be continued...

=== Notes ===

Here is room for some notes to the test...

Help:Editing

2009-05-11T18:21:00Z

Cberendt:

Take a look at http://www.mediawiki.org/wiki/Help:Editing.

Small look inside

2009-05-11T16:29:45Z

Cberendt: fixed typo

= A small look inside =

== Introduction ==

This text will be a little explanation about what kvm is doing. Its done while the existence of kvm-54, so future versions of kvm can differ from this.

svm = secure virtual machine (AMD)

vmx = virtual machine extensions (Intel)

== Loading Modules ==

=== svm (AMD) ===

If one loads the module svm.ko it invokes the module_init() function of that module. This points like most modules to a own init function,here called svm_init(). This function lies in svm.c.

The svm_init() function does nothing special. It calls kvm_init() with a struct kvm_x86_ops. This structure is defined in x86.h. kvm_init() is the init function in kvm_main.c. If we look at the init functions of svm.c and vmx.c, we see that both call kvm_init(), only with the specific set of kvm_x86_ops and a different sizeof struct vcpu_svm or vcpu_vmx.

Roundup:

* We got a struct kvm_x86_ops (svm.c) setup with alot of functions.
* We got a struct vcpu_svm (kvm_svm.h), where we simply need the sizeof firstly
* We call kvm_init() (kvm_main.c)

In the function kvm_init() theres firstly a call to kvm_init_debug(). This function creates some debugfs entries. The kvm_stats_debugfs_item struct is initialized in the file x86.c, there you can check which debugfs entries then exists. The debugfs must firstly be mounted before using it.

'''mount -t debugfs none /sys/kernel/debug'''

and if you want to add it to /etc/fstab, add this line:

'''none /sys/kernel/debug debugfs defaults 0 0'''

Then it calls the function kvm_arch_init() with the struct kvm_x86_ops, which we transferred with the '''opaque''' variable from svm.c. The function kvm_arch_init() is defined in x86.c.

When we look at kvm_arch_init() we see that it's calling kvm_mmu_module_init(), which is defined in mmu.c. This function creates three lookaside caches.
Then it calls kvm_init_msr_list(). msr stands for '''machine specific registers'''.

In kvm_init_msr_list() we see that it reads machine specific registers with rdmsr_safe() to the array msrs_to_save[].

We go back to x86.c and kvm_arch_init(). The next mission is checking if the computer got kvm support and initialize to the global pointer, named kvm_x86_ops, the transferred struct kvm_x86_ops. Then it calls kvm_mmu_set_nonpresent_ptes() which is defined in mmu.c. Now it returns back to kvm_init() in kvm_main.c.

Then the function is allocation a page to the global page struct, named bad_page.Then it calls kvm_arch_hardware_setup() which is defined in x86.c and returns kvm_86_ops->hardware_setup(). We know we use svm module, so we initialized the kvm_86_ops struct with functions from svm.c. So we search for .hardware_setup in our svm_x86_ops struct and see that its connected with svm_hardware_setup().

In svm_hardware_setup() we firstly allocate two pages.Then we copy with memset() the byte 0xff to the page address of struct iopm_pages....
Then we allocate one page and do the same. After that it calls set_msr_interception() to set up which MSRs should be intercepted. Then the macro for_each_online_cpu() which expands to a loop through all online cpu's in the computer and then calls in the loop the function svm_cpu_init().

The function svm_cpu_init() allocates memory for a struct svm_cpu_data which member "cpu" gets initialized with every online cpu and the member "save_area" gets one page of memory allocated. Then theres the line '''per_cpu(svm_data, cpu) = svm_data;''', where the per_cpu macro sits in percpu.h and also calls RELOC_HIDE() macro which is in compiler-gcc.h located. At the beginning of file svm.c the line '''static DEFINE_PER_CPU(struct svm_cpu_data *, svm_data);''' creates a per-CPU variable at compile-time. Now to get the value of the current CPU one can use get_cpu_var(), but to access another processor's copy of the variable, one use per_cpu(). So we initialize the svm_cpu_data struct pointer svm_data to exactly one cpu's svm_data.Then the for_each_online_cpu loop begins with the next cpu. After that every CPU in the system got own memory for a svm_cpu_data struct and one allocated page for smv_data->save_area.

Now where back in kvm_init() function in kvm_main.c. We loop through every online cpu and call for every online cpu the smp_call_function_single() function which runs a function on a specific cpu. The function we put to smp_call_function_single() is kvm_arch_check_processor_compat() which lies in x86.c and only returns kvm_86_ops->check_processor_compatibility. We look again into svm.c at the svm_check_processor_compat() function and see, that this function gives back a NULL pointer(is that correct??). Seemed that only the return value of the function smp_call_function_single in smpcommon.c is interresting. It returns smp_ops.smp_call_function_mask(mask, func, info, wait);.

After that were back in kvm_init() where the macro on_each_cpu will call the function hardware_enable. This function gets the raw_smp_processor_id() and checks if cpu_isset(). If this cpu is not set, it calls cpu_set() and then kvm_arch_hardware_enable(). The function kvm_arch_hardware_enable() only returns kvm_x86_ops->hardware_enable.

We look at svm.c into the svm_hardware_enable() function and see that it calls also the raw_smp_processor_id() function to get the id. Then it checks if this cpu has svm-support builtin. After that it fills the svm_cpu_data struct with per_cpu(svm_data, me) and checks if svm_data is not NULL. Now it assigns values to the svm_cpu_data struct members?. Now it reads and writes some machine specific registers, which enables the svm-extension on the cpu. The next wrmsrl() function writes ...????

Back in kvm_init() we look at register_cpu_notifier which calls in a mutex_lock() the function raw_notifier_chain_register() which adds a notifier to a raw notifier chain. Within this notifier_block we call kvm_cpu_hotplug(). This function reacts on three notifications, CPU_DYING, CPU_UP_CANCELED and CPU_ONLINE and disables or enables the virtualization on that cpu.

And register_reboot_notifier registers a function which will be called at reboot time.

Now we registering the sysdev class with sysdev_class_register().

Then we add a system device to the tree with sysdev_register().

Now we allocated memory with kmem_cache_create, with the sizeof vcpu_size. This kmem cache lets us meet the alignment requirements of fx_save.????

When we called kvm_init() from svm_init() we transferred THIS_MODULE to kvm_init() and now we set svm's module name as owner of kvm_chardev_ops, which is a file_operations struct. This struct only got 2 functions initialized, .unlocked_ioctl and .compat_ioct, which both are initialized with the kvm_dev_ioctl function.

If we have set this, we call misc_register() to register the miscellaneous device. The miscellaneous device got a MAJOR device number of 10. You can check this with

'''cat /proc/devices|grep misc'''

The kvm device is then called /dev/kvm for userspace access.

After that, we set kvm_sched_in and kvm_sched_out as the members of struct kvm_preempt_ops, which is type of struct preempt_ops. With theses functions a task can request the scheduler to
notify it whenever it is preempted or scheduled back in.This allows the task to swap any special-purpose registers like the fpu or Intel's VT registers.

Now we call kvm_init_anon_inode() which in anon_inodes.c calls anon_inode_init(). This function creates a anonymous inode.

Then we call the function preempt_notifier_sys_init() which ...???

After that we loaded the kvm module.

Roundup:
* Create 3 lookaside caches for ...
* Read MSR's into array msrs_to_save for ...
* Setup kvm_x86_ops
* Setup which MSRs should be intercepted
* Allocated memory for every online CPU a struct svm_cpu_data
* Allocated page for every save_area member of svm_cpu_data
* Check Hardware compatibility
* Registered CPU Notifier for hotplug and reboot

Here is a picture that show what all will be created during kvm_init().
[[Media:Documents$$small look inside picture$kvm init1.jpg|picture1]]

Here is a picture that shows which stuff will be destroyed by kvm_exit(). [[Media:Documents$$small look inside picture$kvm exit1.jpg|picture2]]

=== vmx (Intel) ===

If one loads the module vmx.ko it invokes the module_init() function of that module. This points like most modules to a own init function,here called vmx_init(). This function lies in vmx.c.

Virtio

2009-05-11T16:27:48Z

Cberendt: fixed link to kvm-forum 2007 presentation

=Virtio=

== Paravirtualized drivers for kvm/Linux ==
* Virtio was chosen to be the main platform for IO virtualization in KVM
* The idea behind it is to have a common framework for hypervisors for IO virtualization
* More information (although not uptodate) can be found [[Media:KvmForum2007$kvm_pv_drv.pdf|here]]
* At the moment network/block/balloon devices are suported for kvm
* The host implementation is in userspace - qemu, so no driver is needed in the host.

== How to use Virtio ==
* Get kvm version >= 60
* Get Linux kernel with virtio drivers for the guest
** Get Kernel >= 2.6.25 and activate (modules should also work, but take care of initramdisk)
*** CONFIG_VIRTIO_PCI=y (Virtualization -> PCI driver for virtio devices)
*** CONFIG_VIRTIO_BALLOON=y (Virtualization -> Virtio balloon driver)
*** CONFIG_VIRTIO_BLK=y (Device Drivers -> Block -> Virtio block driver)
*** CONFIG_VIRTIO_NET=y (Device Drivers -> Network device support -> Virtio network driver)
*** CONFIG_VIRTIO=y (automatically selected)
*** CONFIG_VIRTIO_RING=y (automatically selected)
*** you can safely disable SATA/SCSI and also all other nic drivers if you only use VIRTIO (disk/nic)
* As an alternative one can use a standard guest kernel for the guest > 2.6.18 and make use sync backward compatibility option
** Backport and instructions can be found in [http://www.kernel.org/pub/scm/virt/kvm/kvm-guest-drivers-linux.git kvm-guest-drivers-linux.git]
* Use model=virtio for the network devices and if=virtio for disk
** Example
<pre><nowiki>
qemu/x86_64-softmmu/qemu-system-x86_64 -boot c -drive file=/images/xpbase.qcow2,if=virtio,boot=on -m 384 -net nic,model=virtio -net tap,script=/etc/kvm/qemu-ifup
</nowiki></pre>
* -hd[ab] for disk won't work, use -drive
* Disk will show up as /dev/vd[a-z][1-9], if you migrate you need to change "root=" in Lilo/GRUB config
* At the moment the kernel modules are automatically loaded in the guest but the interface should be started manually (dhclient/ifconfig)
* Currently performance is much better when using a host kernel configured with CONFIG_HIGH_RES_TIMERS. Another option is use HPET/RTC and -clock= qemu option.
* Expected performance
** Performance varies from host to host, kernel to kernel
** On my laptop I measured 1.1Gbps rx throughput using 2.6.23, 850Mbps tx.
** Ping latency is 300-500 usec
* Enjoy, more to come :)

__NOTOC__

Status

2009-05-11T16:24:27Z

Cberendt: fixed stupid typoerror

=Status=

KVM is included in the mainline linux kernel since 2.6.20 and is stable and fast for most workloads.

It is also available as a patch for recent Linux kernel versions and as an external module that can be used with your favorite distro- provided kernel going back up to 2.6.16, therefore including all latest versions for Enterprise Linux Distributions.

===Working:===

* Intel-based hosts (requires VT capable processors)
* AMD-based hosts (requires SVM capable processors)
* Windows/Linux/Unix guests (32-bit and 64-bit)
* SMP hosts
* SMP guests (as of kvm-61, max 16 cpu supported)
* Live [[Migration]] of guests from one host to another (32-bit and 64-bit)
* See the [[Guest Support Status]] page for a list of guest operating systems known to work
* See the [[Host Support Status]] page for information on host hardware.
* Guest swapping

===In progress:===

* [[Paravirtualized networking]]
* [[Paravirtualized block device]]
* [[PowerPC|PowerPC port]]
* IA64 port
* xenner (http://kraxel.fedorapeople.org/xenner), a project to run x86 xen guest (domU) kernels

Status

2009-05-11T16:23:06Z

Cberendt:

=Status=

KVM is included in the mainline linux kernel since 2.6.20 and is stable and fast for most workloads.

It is also available as a patch for recent Linux kernel versions and as an external module that can be used with your favorite distro- provided kernel going back up to 2.6.16, therefore including all latest versions for Enterprise Linux Distributions.

===Working:===

* Intel-based hosts (requires VT capable processors)
* AMD-based hosts (requires SVM capable processors)
* Windows/Linux/Unix guests (32-bit and 64-bit)
* SMP hosts
* SMP guests (as of kvm-61, max 16 cpu supported)
* Live [[Migration]] of guests from one host to another (32-bit and 64-bit)
* See the [[Guest Support Status]] page for a list of guest operating systems known to work
* See the [[Host Support Status]] page for information on host hardware.
* Guest swapping

===In progress:===

* [[Paravirtualized networking]]
* [[Paravirtualized block device]]
* [[PowerPC|PowerPC port]]
* IA64 port
* [[http://kraxel.fedorapeople.org/xenner/|xenner]], a project to run x86 xen guest (domU) kernels

Status

2009-05-11T16:21:14Z

Cberendt:

=Status=

KVM is included in the mainline linux kernel since 2.6.20 and is stable and fast for most workloads.

It is also available as a patch for recent Linux kernel versions and as an external module that can be used with your favorite distro- provided kernel going back up to 2.6.16, therefore including all latest versions for Enterprise Linux Distributions.

===Working:===

* Intel-based hosts (requires VT capable processors)
* AMD-based hosts (requires SVM capable processors)
* Windows/Linux/Unix guests (32-bit and 64-bit)
* SMP hosts
* SMP guests (as of kvm-61, max 16 cpu supported)
* Live [[Migration]] of guests from one host to another (32-bit and 64-bit)
* See the [[Guest Support Status]] page for a list of guest operating systems known to work
* See the [[Host Support Status]] page for information on host hardware.
* Guest swapping

===In progress:===

* [[Paravirtualized networking]]
* [[Paravirtualized block device]]
* [[PowerPC|PowerPC port]]
* IA64 port
* Run x86 xen guest (domU) kernels, see [http://kraxel.fedorapeople.org/xenner/ http://kraxel.fedorapeople.org/xenner/]

Status

2009-05-11T16:18:29Z

Cberendt: removed the reference to the feature- and roadmap-page, I couldn't find them :(

=Status=

KVM is included in the mainline linux kernel since 2.6.20 and is stable and fast for most workloads.

It is also available as a patch for recent Linux kernel versions and as an external module that can be used with your favorite distro- provided kernel going back up to 2.6.16, therefore including all latest versions for Enterprise Linux Distributions.

===Working:===

* Intel-based hosts (requires VT capable processors)
* AMD-based hosts (requires SVM capable processors)
* Windows/Linux/Unix guests (32-bit and 64-bit)
* SMP hosts
* SMP guests (as of kvm-61, max 16 cpu supported)
* Live [[Migration]] of guests from one host to another (32-bit and 64-bit)
* See the [[Guest Support Status]] page for a list of guest operating systems known to work
* See the [[Host Support Status]] page for information on host hardware.
* Guest swapping

===In progress:===

* [[Paravirtualized networking]]
* [[Paravirtualized block device]]
* PowerPC port -- see [[PowerPC]]
* IA64 port -- see [[Category_ia64]]
* Run x86 xen guest (domU) kernels, see [http://kraxel.fedorapeople.org/xenner/ http://kraxel.fedorapeople.org/xenner/]

Main Page

2009-05-11T16:14:34Z

Cberendt: moved the kvm-forum entries to a separate page (feel free to undo the changes if you don't like this solution). A link on the left side would be nice.

== Kernel Based Virtual Machine ==

KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko. KVM also requires a modified QEMU although work is underway to get the required changes upstream.

Using KVM, one can run multiple virtual machines running unmodified Linux or Windows images. Each virtual machine has private virtualized hardware: a network card, disk, graphics adapter, etc.

The kernel component of KVM is included in mainline Linux, as of 2.6.20.

KVM is open source software.

You can find information about the [[KVM Forum]] on a separate page.

KVM Forum

2009-05-11T16:08:27Z

Cberendt:

= KVM Forum =

== 2008 ==
[[Image:Front Page$banner kvm forum 2008.jpg]]

Notes and presentations form the event: [[KvmForum2008]]

== 2007 ==
Notes and presentations form the event: [[KvmForum2007]]

KVM Forum

2009-05-11T16:07:28Z

Cberendt:

= KVM Forum =

Talk:Guest Support Status

2009-05-09T21:28:38Z

Cberendt:

User:Cberendt

2009-05-09T21:20:41Z

Cberendt:

= Profile of Christian Berendt =

I'm a Linux consultant and developer from Germany, working for the [http://www.b1-systems.de B1 Systems GmbH].

You can find my private website at http://www.thorlin.de.

Talk:Main Page

2009-05-09T21:17:40Z

Cberendt:

HOWTO

2009-05-09T21:14:55Z

Cberendt: try to restructure the site in a useful manner

= Howto's =

== General ==
* [[HOWTO1 | Getting KVM to run on your machine]]
* [[choose the right kvm & kernel version]]
* [[How To Migrate From Vmware To KVM]]

== Network related ==

* [[Networking| Setting guest network]]
* [[NetConsole| set up a network console]]

== Hardware related ==

* [[How to assign devices with VT-d in KVM]]
* [[Enable VT-X on Mac Pro (Early 2008)]]

=== USB ===
* [[usb related]]

=== Ethernet ===
* [[ethernet_related]]

=== PCI ===
* [[hotadd pci devices]]

=== virtio ===

* [[boot from virtio block device]]
* [[Using VirtIO NIC|use virtio_net interface]] in the guest (Debian)

== Operating System related ==

=== Ubuntu ===
* [http://www.howtoforge.com/using-kvm-on-ubuntu-gutsy-gibbon using-kvm-on-ubuntu-gutsy-gibbon]
* [[AnthonyLiguori/Networking| Setting up NAT with KVM in Ubuntu]]
* [https://help.ubuntu.com/community/KVM Running Guest Systems on Ubuntu 7.04 Feisty Fawn]

=== BSD ===
* [http://www.linux-kvm.org/page/BSD KVM on BSD, FreeBSD]

=== Windows Vista ===
* [[Vista Networking Workaround]]

== Scripting & Software ==
* [[HowToConfigScript|Configuration Script for KVM]] - a complete management utility, configuration file format, and init script.
* [[simple shell script to manage your virtual machine with bridged networking]]
* [http://www.papercut.com/blog/chris/2008/11/14/using-kvm-to-securely-host-servers-in-a-dmz/ Hosting your VMs in a DMZ] - a management and configuration script to assist with setting up a VM in a semi-secured demilitarized zone.
* [http://pve.proxmox.com/wiki/Bare-metal_ISO_Installer Bare-metal] installer with KVM

=== libvirt ===

* [[Running libvirt with KVM]]

== Other ==

* [[HOWTO VMGL]] - OpenGL support for Linux guests

Guest Support Status

2009-05-09T20:56:35Z

Cberendt: removed } from the wrong position

=Guest Support Status=

== Windows Family ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-
| Windows 7 RC
| 64
| kvm-85
| Intel
| 64
| Works
| Installs and works without any problem with 1G mem.
|-

|-
| Windows 7 Beta
| 64
| kvm-84
| AMD
| 64
| Works
| Installs and works without any problem with 512M mem.
|-

| Windows 7 Beta
| 32
| kvm-83
| Intel
| 32
| Works
| Installed in about 25-30 minutes and worked flawlessly on my ThinkPad T60 (1953-7EU) with 1.5G of RAM
|-

| Windows 7 Beta
| 32
| kvm-62
| AMD
| 64
| Works
| "-m 2048 -vnc :0 -usbdevice tablet -smp 2 -std-vga" on qcow2
|-

| Windows Server 2008 (Datacenter)
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Windows Server 2008 (Datacenter)
| 32
| kvm-72
| Intel, AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Windows Vista Ultimate
| 64
| kvm-84
| Intel, AMD
| 64
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Vista Ultimate
| 32
| kvm-84
| Intel, AMD
| 64, 32
| Works
| (not Aero Glass capable) by Alexey.E.
|-

| Windows Server 2003 x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows Server 2003 (Enterprise)
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows XP Pro x64
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E. (setup is unstable, rerun several times)
|-

| Windows XP Pro
| 32
| kvm-72
| Intel
| 32, 64
| Works
| by Alexey.E.
|-

| Windows XP Pro
| 32
| kvm-72
| AMD
| 64
| Works
| by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel, AMD
| 64
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Pro (SP4)
| 32
| kvm-64
| Intel
| 32
| Works
| use Qcow2 format. (setup is unstable, rerun several times) by Alexey.E.
|-

| Windows 2000 Advanced Server
| 32
| kvm-44
| Intel
| 64
| Works
| use Qcow2 format.
|-

| Windows 98SE
| 32
| kvm-63
| Intel
| 32
| Fails
| by Alexey.E. (halts when booting HIMEM)
|-

| Windows 98SE
| 32
| kvm-80, 2.6.27.7
| AMD
| 64
| no way
| install crashes
|-

| Windows 95
| 32
| kvm-44, 2.6.23-rc8
| AMD
| 64, 32
| no way
|
|}

== Linux Family: Fedora/RedHat Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Fedora 11 BETA
| 32, 64
| kvm-84
| Intel
| 64
| Fails
| by Alexey.E. Slowness and softlockups.
|-

|-
| Fedora 10
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E. Updated by Lennert.B.
|-

| Fedora 9
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 8
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 7
| 32, 64
| kvm-75
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Fedora 6
| 32
| kvm-26
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 5
| 32, 64
| kvm-12
| Intel, AMD
| 32, 64
| Works
|
|-

| Fedora 4
| 64
|
| AMD
| 64
| Works, slightly high idle cpu
|by MichaelKarliner
|-

| Fedora 3
| 64
| kvm-78
| AMD
| 64
| Works
| by George Y. Requires noacpi in boot options
|-

| RHEL5
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| RHEL4
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| RHEL3
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Frank.Q. updated by Alexey.E.
|-

| Red Hat Linux 9
| 32
| kvm-51
| Intel
| 64
| Works
| by Alexey.E.
|-

| Red Hat Linux 8
| 32
| kvm-64
| Intel
| 64
| Crashes
| Fails on init. by Frank.Q.
|-

| Red Hat Linux 7.3
| 32
| kvm-78
| AMD
| 64
| Works
| -no-kvm is required for installation
|-

| Red Hat Linux 7
| 32
| kvm-52
| Intel, AMD
| 64
| Crashes
| Fails on init. by Alexey.E.
|-

| Trixbox (CentOS)
| 32
| kvm-12
| Intel
| 64
| Works
|
|}

== Linux Family: Ubuntu/Debian Derivatives ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Ubuntu 9.04
| 64
| kvm-84
| Intel
| 64
| Works
| It's actually Xubuntu but should be the same both block and net virtio devices working too
|-

| Ubuntu 8.04 LTS
| 32, 64
| kvm-64
| Intel, AMD
| 32, 64
| Works
| by Alexey.E. (some issues with virtio)
|-

| Ubuntu 7.10
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 7.10 Server
| 64
| kvm-60
| AMD
| 64
| Works
| No framebuffer (black screen at first). Hit enter to start installer.
|-

| Ubuntu 7.10 Server
| 32
| kvm-60/61
| Intel
| 64
| Doesn't work
| Installer crashes (by Ryota Ozaki)
|-

| Ubuntu 7.04
| 32, 64
| kvm-62
| Intel,AMD
| 32, 64
| Crashes, Workaround exists
| Install using Qemu, remove GFX boot. by Alexey.E.
|-

| Ubuntu 6.06 LTS Server
| 32
| kvm-20
| Intel
| 32
| Works
| use -no-acpi
|-

| Debian Lenny 5.0
| 32, 64
| kvm-72/77
| Intel
| 64
| Works
|
|-

| Debian Etch 4.0
| 64
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| Intel
| 64, 32
| Works
| by Alexey.E.
|-

| Debian Etch 4.0
| 32
| kvm-64
| AMD
| 64
| FAILS, workaround exists
| by Alexey.E. (manually choose i586 kernel, do not use default "k7" kernel)
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 32
| Works
|
|-

| Debian Sarge 3.1
| 32
| kvm-12
| Intel
| 64
| Mostly works
| Install hangs, will install via -no-kvm. Runs fine after
|-

| Xandros 3 OCE
| 32
| kvm-29
| Intel
| 64
| Works
| by Alexey.E.
|-

| KNOPPIX 5.1.1
| 32
| kvm-18
| Intel
| 64
| Works
| use nmi_watchdog=0 or nolapic kernel parameter to boot
|-

| Knoppix 5.2
| 32
| kvm-18
| Intel
| 32
| Works
|
|}

== Other Linux Distros ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| openSUSE 11.1
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 11.0
| 32, 64
| kvm-85
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32
| kvm-57
| AMD
| 64
| Works
| by Alexey.E.
|-

| openSUSE 10.3
| 32/64
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| openSUSE 10.2
| 32/64
| kvm-28/kvm-51
| Intel
| 64
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 10.0
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| Start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| SUSE Linux 9.1
| 32
| kvm-72
| Intel/AMD
| 64, 32
| Works
| by Alexey.E.
|-

| Slackware 12
| 32
| kvm-36
| Intel
| 32
| Works
|
|-

| Slackware 11
| 32
| kvm-15
| Intel
| 64
| Works
| using test26.s kernel
|-

| Qemu-Puppy 2.01-3
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| Qemu-Puppy 2.13-1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| SystemRescueCD 0.3.4
| 32
| kvm-18
| Intel
| 64
| Works
| Works fine, except for initial X-setting "cirrus" - changed to "vesa", then works.
|-

| Gentoo 2006.1
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Gentoo 2007.0
| 32
| kvm-24
| Intel
| 64
| Works
|
|-

| Arch Linux (Duke)
|32
| kvm-17
|AMD
|64
|Works
|Host: 2.6.21-ARCH, guest: 2.6.22-rc5-ARCH says "booting paravirtualized kernel on bare hardware"
|-

| Mandrake Linux 9.2
|32
| kvm-51
|Intel
|64
| Works
| by Alexey.E.
|-

| Mandriva 2009
| 32/64
| kvm-75
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008.1
| 32
| kvm-64
| Intel
| 64, 32
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2008
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Mandriva 2007
| 32
| kvm-51
| Intel
| 64
| Crashes, Workaround exists
| start kvm with -no-kvm for installation. Remove graphical GRUB. by Alexey.E.
|-

| Crux Linux 2.5
| 32
| kvm-82
| Intel
| 32
| Works
| Boots Automatically at 'Guest Install' stage. Installs without issue. by Chris P
|}

== UNIX Family: BSD ==
{|border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| OpenBSD 4.4
| 64
| kvm-78
| AMD
| 64
| Works
|
|-

| OpenBSD 4.2
| 32
| kvm-58
| Intel
| 32
| Works
|
|-

| OpenBSD 4.1
| 32
| kvm-72
| Intel, AMD
| 64
| Works
| by Alexey.E.
|-

| OpenBSD 4.0
| 64
| kvm-12
| Intel
| 64
| Works
|
|-

| OpenBSD 4.0
| 32
| kvm-16 + CVS
| Intel
| 64
| Works
|
|-

| FreeBSD 6.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| FreeBSD 6.2
| 64
| kvm-12
| AMD
| 64
| Works
|
|-

| FreeBSD 6.2
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| FreeBSD 6.3
| 32
| Fedora 8 - kvm-37-7.fc8
| Intel
| 64
| works
|
|-

|FreeBSD 6.3
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 6.3
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Freddie
|-

|FreeBSD 7.0
|32
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|64
|Debian Lenny, kvm-60
|AMD
|64
|Works
|No issues in several weeks of testing. Tested with 1 and 2 virtual CPUs. Freddie
|-

|FreeBSD 7.0
|32
|OpenSUSE 10.3 kvm-63
|AMD
|64
|works
| disk i/o issues? "ad0: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=XXXXXXX"
|-

| FreeBSD 7.0
| 64
| OpenSUSE 10.3 kvm-63
| AMD
| 64
| crashes after boot loader
|-

| FreeBSD 7.1
| 64
| kvm-84
| Intel
| 64
| Works
| sdl graphics mess up if using kvm, setup with -nokvm then use ssh or -nographics and serial console
|-

| GNU/kFreeBSD
| 32
| kvm-84
| Intel
| 32
| Works
| kvm module must be loaded with oos_shadow=0
|-

|GNU/kFreeBSD
| 64
| kvm-15
| AMD
| 64
| Works
|
|-

| GNU/kFreeBSD
| 32
| kvm-16 + CVS
| AMD
| 64
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-17/18
| Intel
| 32
| Works
|
|-

| NetBSD 3.1
| 32
| kvm-21
| AMD
| 64
| Works
|
|-

| NetBSD 4.0
| 32
| kvm-60
| Intel
| 64
| Works
| avoid hangup on boot with --no-acpi and network card timeout by trying out a different card, e.g. -net nic,model=ne2k_pci
|-

| PC-BSD 1.4
| 32
| kvm-56
| Intel
| 64
| Works
| By Alexey.E.
|-

| DragonflyBSD 1.10.1
| 32
| kvm-58
| Intel
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work; use -net nic,model=e1000 to avoid network timeouts
|-

| DragonflyBSD 2.2.1
| 32
| kvm-85
| Intel
| 64
| Works
| not tried X
|}

== UNIX Family: Solaris/OpenSolaris ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Solaris 10 U1
| 32
| kvm-12
| Intel
| 64
| Works
| later releases will detect the CPU is 64 bit capable and try to default to run a 64 bit kernel and fail, for those you have to override Solaris autodetection by adding "kernel/unix" to the kernel multiboot entry in GRUB
|-

| Solaris 10 U3
| 64
| kvm-58 + patch
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]
|-

| Nexenta Core 1.0
| 64
| kvm-61
| Intel
| 64
| Works
| needs additional patch to kvm for [http://tapir.sajinet.com.pe/gentoo/portage/app-emulation/kvm/files/kvm-57-kernel-longmode.patch kvm kernel longmode]. Use -m 512 -net nic,model=e1000
|-

| OpenSolaris 2008.05
| 64
| kvm-69
| Intel
| 64
| Works
| Use -m 512 -net nic,model=e1000
|-

| Milax 0.3.2
| 32
| kvm-62
| Intel
| 64
| Works
| Use the kvm option -net nic,model=rtl8139 and add atapi-cd-dma-enabled=0,atapi-other-dma-enabled=0 to the kernel line in the grub menu for older releases of Milax http://www.milax.org/ in version 0.3.2 choose the Qemu grub menu entry ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Belenix 0.7.1
| 64
| kvm-62
| Intel
| 64
| Works
| Note: older releases of Belenix only work in text mode; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| Solaris 10 U6
| 32
| kvm-62
| Intel
| 64
| Works
| Note: the grub menu entry for Solaris 10 created by the installer is wrong, to make it work add unix/kernel to the line beginning with kernel ; tested on Ubuntu 8.04.1 by BerndSchemmer
|-

| OpenSolaris 2008.11
| 64
| kvm-62
| Intel
| 64
|Works
| tested on Ubuntu 8.04.1 by BerndSchemmer
|}

== Other UNIX systems ==
{| border=1
|'''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Darwin 8.0.1
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| MINIX 3.1.2a
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| GNU hurd live CD (20051117)
| 32
| kvm-28
| Intel
| 32
| Works
| Seems to have networking problems.
|-

| GNU/Hurd (Debian K14)
| 32
| kvm-33
| Intel
| 32
| Works
| [http://kvm.qumranet.com/kvmwiki/Guest_Support_Status?action=AttachFile&do=get&target=hurd-k14.png screenshot]
|-

| GNU/Hurd (Debian K16)
| 32
| kvm-69
| AMD
| 64
| Works
| avoid kvm-[64-67] which require -no-kvm-pit to work
|}

== Others ==
{|border=1
| '''Guest'''
| '''Guest bitness'''
| '''Host version'''
| '''Host cpu'''
| '''Host bitness'''
| '''Status'''
| '''Comments'''
|-

| Haiku OS
| 32
| kvm-12
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-12
| AMD
| 64
| Works
| LiveCD tested. [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_aros_haiku.png screenshot]
|-

| Amiga Research OS (AROS)
| 32
| kvm-58
| Intel
| 32
| Works
| LiveCD tested.
|-

| ReactOS 0.3.0
| 32
| kvm-14
| AMD
| 64
| Works
| [http://kvm.qumranet.com/kvmwiki/Screenshots?action=AttachFile&do=view&target=kvm_reactos.png screenshot]
|-

| FreeDOS 1.0
| 32
| kvm-71
| Intel
| 64
| Works
|
|-

| MS DOS 6.22
| 32
| kvm-28
| Intel
| 32
| Stops
| It seems to stop booting after HIMEM.
|-

| Syllable 0.61
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Visopsys 0.62
| 32
| kvm-29
| Intel
| 64
| Crashes
| by Alexey.E.
|-

| Plan 9
| 32
| kvm-68
| Intel
| 64
| Works
| needs -no-kvm-irqchip
|-

| FreeDOS 7 + Novell Netware 4.1
| 32
| kvm-83
| AMD
| 64
| Works
| tested by Ruediger G. Biernat / [http://flickr.com/photos/rgbiernat/3261075882/ screenshot]
|}