xref: /openbmc/qemu/docs/about/build-platforms.rst (revision 764ecf77)
1.. _Supported-build-platforms:
2
3Supported build platforms
4=========================
5
6QEMU aims to support building and executing on multiple host OS
7platforms. This appendix outlines which platforms are the major build
8targets. These platforms are used as the basis for deciding upon the
9minimum required versions of 3rd party software QEMU depends on. The
10supported platforms are the targets for automated testing performed by
11the project when patches are submitted for review, and tested before and
12after merge.
13
14If a platform is not listed here, it does not imply that QEMU won't
15work. If an unlisted platform has comparable software versions to a
16listed platform, there is every expectation that it will work. Bug
17reports are welcome for problems encountered on unlisted platforms
18unless they are clearly older vintage than what is described here.
19
20Note that when considering software versions shipped in distros as
21support targets, QEMU considers only the version number, and assumes the
22features in that distro match the upstream release with the same
23version. In other words, if a distro backports extra features to the
24software in their distro, QEMU upstream code will not add explicit
25support for those backports, unless the feature is auto-detectable in a
26manner that works for the upstream releases too.
27
28The `Repology`_ site is a useful resource to identify
29currently shipped versions of software in various operating systems,
30though it does not cover all distros listed below.
31
32Supported host architectures
33----------------------------
34
35Those hosts are officially supported, with various accelerators:
36
37  .. list-table::
38   :header-rows: 1
39
40   * - CPU Architecture
41     - Accelerators
42   * - Arm
43     - kvm (64 bit only), tcg, xen
44   * - MIPS
45     - kvm, tcg
46   * - PPC
47     - kvm, tcg
48   * - RISC-V
49     - tcg
50   * - s390x
51     - kvm, tcg
52   * - SPARC
53     - tcg
54   * - x86
55     - hax, hvf (64 bit only), kvm, nvmm, tcg, whpx (64 bit only), xen
56
57Other host architectures are not supported. It is possible to build QEMU on an
58unsupported host architecture using the configure ``--enable-tcg-interpreter``
59option to enable the experimental TCI support, but note that this is very slow
60and is not recommended.
61
62Non-supported architectures may be removed in the future following the
63:ref:`deprecation process<Deprecated features>`.
64
65Linux OS, macOS, FreeBSD, NetBSD, OpenBSD
66-----------------------------------------
67
68The project aims to support the most recent major version at all times. Support
69for the previous major version will be dropped 2 years after the new major
70version is released or when the vendor itself drops support, whichever comes
71first. In this context, third-party efforts to extend the lifetime of a distro
72are not considered, even when they are endorsed by the vendor (eg. Debian LTS).
73
74For the purposes of identifying supported software versions available on Linux,
75the project will look at CentOS, Debian, Fedora, openSUSE, RHEL, SLES and
76Ubuntu LTS. Other distros will be assumed to ship similar software versions.
77
78For FreeBSD and OpenBSD, decisions will be made based on the contents of the
79respective ports repository, while NetBSD will use the pkgsrc repository.
80
81For macOS, `HomeBrew`_ will be used, although `MacPorts`_ is expected to carry
82similar versions.
83
84Windows
85-------
86
87The project supports building with current versions of the MinGW toolchain,
88hosted on Linux (Debian/Fedora).
89
90The version of the Windows API that's currently targeted is Vista / Server
912008.
92
93.. _HomeBrew: https://brew.sh/
94.. _MacPorts: https://www.macports.org/
95.. _Repology: https://repology.org/
96