QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org
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Richard Henderson 29b77c1a2d CI/build-sys fixes for Rust
Collect CI/build-sys patches related to Rust.
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Merge tag 'rust-ci-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

CI/build-sys fixes for Rust

Collect CI/build-sys patches related to Rust.

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# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg:                issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [unknown]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* tag 'rust-ci-pull-request' of https://gitlab.com/marcandre.lureau/qemu: (23 commits)
  build-sys: pass -fvisibility=default for wasm bindgen
  build-sys: deprecate mips host
  meson: rust-bindgen limit allowlist-file to srcdir/include
  tests/freebsd: enable Rust
  configure: set the meson executable suffix/ext
  tests/lcitool: enable rust & refresh
  tests/docker: add ENABLE_RUST environment
  tests/lcitool: update to debian13
  tests/lcitool: add missing rust-std dep
  lcitool/alpine: workaround bindgen issue
  lcitool/qemu: include libclang-rt for TSAN
  lcitool: update, switch to f41
  build-sys: cfi_debug and safe_stack are not compatible
  tests/docker/common: print meson log on configure failure
  tests/docker: use fully qualified image name for emsdk
  tests/docker/common: print errors to stderr
  configure: set the bindgen cross target
  configure: fix rust meson configuration
  scripts/archive-source: use a bash array
  scripts/archive-source: silence subprojects downloads
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 days ago
.github/workflows github: fix config mistake preventing repo lockdown commenting 3 years ago
.gitlab/issue_templates .gitlab/issue_templates: Move suggestions into comments 3 years ago
.gitlab-ci.d tests/freebsd: enable Rust 2 days ago
accel accel/tcg: Remove cpu_loop_exit_restore() stub 1 week ago
audio audio: Reset rate control when adding bytes 4 months ago
authz qom: Make InterfaceInfo[] uses const 5 months ago
backends sev: Provide sev_features flags from IGVM VMSA to KVM_SEV_INIT2 3 months ago
block treewide: handle result of qio_channel_set_blocking() 2 weeks ago
bsd-user * cpu-exec: more cleanups to CPU loop exits 2 weeks ago
chardev chardev: close an fd on failure path 2 weeks ago
common-user plugins: fix inclusion of user-mode APIs 3 months ago
configs hw/mips: Remove mipssim machine 1 month ago
contrib contrib/plugins/uftrace_symbols.py 7 days ago
crypto crypto/hmac: Allow to build hmac over multiple qcrypto_gnutls_hmac_bytes[v] calls 1 month ago
disas include/system: Move exec/memory.h to system/memory.h 5 months ago
docs build-sys: deprecate mips host 2 days ago
dump cleanup: Drop pointless return at end of function 5 months ago
ebpf ebpf: improve trace event coverage to all key operations 11 months ago
fpu fpu: Process float_muladd_negate_result after rounding 3 months ago
fsdev 9pfs: Add FreeBSD support 2 weeks ago
gdb-xml gdbstub: add the GDB register XML files for sparc64. 3 months ago
gdbstub gdbstub: Remove tb_flush uses 1 week ago
host/include cpuinfo/i386: Detect GFNI as an AVX extension 4 weeks ago
hw aspeed queue: 3 days ago
include aspeed queue: 3 days ago
io treewide: use qemu_set_blocking instead of g_unix_set_fd_nonblocking 2 weeks ago
libdecnumber libdecnumber: replace FSF postal address with licenses URL 3 months ago
linux-headers linux-headers: Remove the 32-bit arm headers 2 months ago
linux-user target/arm: Move ID register field defs to cpu-features.h 6 days ago
migration migration: qemu_file_set_blocking(): add errp parameter 2 weeks ago
monitor monitor/hmp-cmds-target: add CPU_DUMP_VPU in hmp_info_registers() 3 months ago
nbd treewide: handle result of qio_channel_set_blocking() 2 weeks ago
net treewide: use qemu_set_blocking instead of g_unix_set_fd_nonblocking 2 weeks ago
pc-bios multiboot: Fix the split lock 2 weeks ago
plugins plugins: Use tb_flush__exclusive_or_serial 1 week ago
po po: update Italian translation 1 year ago
python configure: bump Meson to 1.9.0 for use with Rust 2 weeks ago
qapi rbd: Fix .bdrv_get_specific_info implementation 2 months ago
qga treewide: use qemu_set_blocking instead of g_unix_set_fd_nonblocking 2 weeks ago
qobject qapi: Move include/qapi/qmp/ to include/qobject/ 8 months ago
qom qom: qom-list-get 3 months ago
replay cpus: properly kick CPUs out of inner execution loop 2 weeks ago
roms roms/Makefile: build ast27x0_bootrom 2 months ago
rust build-sys: pass -fvisibility=default for wasm bindgen 2 days ago
scripts tests/lcitool: add missing rust-std dep 2 days ago
scsi treewide: handle result of qio_channel_set_blocking() 2 weeks ago
semihosting semihosting/arm-compat-semi: compile once in system and per target for user mode 7 days ago
stats qapi: Move include/qapi/qmp/ to include/qobject/ 8 months ago
storage-daemon docs/sphinx: remove special parsing for freeform sections 3 months ago
stubs qapi: make s390x specific CPU commands unconditionally available 4 months ago
subprojects subprojects: Ignore .wraplock file generated by meson v1.9.0 1 week ago
system * cpu-exec: more cleanups to CPU loop exits 2 weeks ago
target ppc queue for 20250928 3 days ago
tcg include/hw/core/cpu: Invert the indexing into CPUTLBDescFast 1 week ago
tests tests/freebsd: enable Rust 2 days ago
tools treewide: handle result of qio_channel_set_blocking() 2 weeks ago
trace meson: fix Windows build 4 months ago
ui ui/icons/qemu.svg: Add metadata information (author, license) to the logo 3 days ago
util util/vhost-user-server: vu_message_read(): improve error handling 2 weeks ago
.b4-config b4: Drop linktrailermask 3 months ago
.dir-locals.el Add .dir-locals.el file to configure emacs coding style 10 years ago
.editorconfig scripts/kernel-doc: Delete the old Perl kernel-doc script 1 month ago
.exrc qemu: add .exrc 13 years ago
.gdbinit .gdbinit: load QEMU sub-commands when gdb starts 8 years ago
.git-blame-ignore-revs metadata: add .git-blame-ignore-revs 3 years ago
.gitattributes rust: patch bilge-impl to allow compilation with 1.63.0 11 months ago
.gitignore configure: rename --enable-pypi to --enable-download, control subprojects too 2 years ago
.gitlab-ci.yml docs: Document GitLab custom CI/CD variables 4 years ago
.gitmodules .gitmodules: move u-boot mirrors to qemu-project-mirrors 2 weeks ago
.gitpublish Add a git-publish configuration file 8 years ago
.mailmap MAINTAINERS: Update Akihiko Odaki's affiliation 4 months ago
.patchew.yml scripts/checkpatch: roll diff tweaking into checkpatch itself 4 years ago
.readthedocs.yml readthedocs: don't build extra formats 2 months ago
.travis.yml travis.yml: Remove the aarch64 job 4 months ago
COPYING COPYING: replace FSF postal address with licenses URL 3 months ago
COPYING.LIB COPYING: replace FSF postal address with licenses URL 3 months ago
Kconfig build-sys: Add rust feature option 1 year ago
Kconfig.host pvg: do not enable it on cross-architecture targets 7 months ago
LICENSE tcg/LICENSE: Remove out of date claim about TCG subdirectory licensing 6 years ago
MAINTAINERS tests/functional: Add test for IBM PPE42 instructions 4 days ago
Makefile Makefile: prune quilt source files for cscope 3 months ago
README.rst README.rst: add the missing punctuations 1 year ago
VERSION Open 10.2 development tree 1 month ago
block.c block: mark bdrv_open_child_common() and its callers GRAPH_UNLOCKED 3 months ago
blockdev-nbd.c qapi: merge common parts of NbdServerOptions and nbd-server-start data 7 months ago
blockdev.c block: mark bdrv_inactivate() as GRAPH_RDLOCK and move drain to callers 3 months ago
blockjob.c block: add bdrv_graph_wrlock_drained() convenience wrapper 3 months ago
clippy.toml meson, cargo: require Rust 1.83.0 2 weeks ago
configure configure: set the meson executable suffix/ext 2 days ago
cpu-common.c treewide: rename qemu_wait_io_event/qemu_wait_io_event_common 2 weeks ago
cpu-target.c cpu-target: build compilation unit once for user/system 1 month ago
event-loop-base.c qom: Make InterfaceInfo[] uses const 5 months ago
gitdm.config contrib/gitdm: add group map for AMD 3 years ago
hmp-commands-info.hx accel/system: Add 'info accel' on human monitor 3 months ago
hmp-commands.hx net: Add passt network backend 3 months ago
iothread.c qom: Have class_init() take a const data argument 5 months ago
job-qmp.c qapi job: Elide redundant has_FOO in generated C 3 years ago
job.c test-bdrv-drain: Fix data races 6 months ago
meson.build build-sys: pass -fvisibility=default for wasm bindgen 2 days ago
meson_options.txt meson: remove 'gnutls-bug1717-workaround' for migration TLS crashes 2 months ago
module-common.c all: Clean up includes 10 years ago
os-posix.c os: add an ability to lock memory on_fault 8 months ago
os-wasm.c include/qemu/osdep.h: Add Emscripten-specific OS dependencies 5 months ago
os-win32.c include: Rename sysemu/ -> system/ 10 months ago
page-vary-common.c Remove qemu-common.h include from most units 4 years ago
page-vary-target.c page-vary: Restrict scope of TARGET_PAGE_BITS_MIN 5 months ago
pythondeps.toml configure: bump Meson to 1.9.0 for use with Rust 2 weeks ago
qemu-bridge-helper.c qemu-bridge-helper: relocate path to default ACL 5 years ago
qemu-edid.c qemu-edid: Restrict input parameter -d to avoid division by zero 3 years ago
qemu-img-cmds.hx qemu-img: snapshot: allow specifying -f fmt 3 months ago
qemu-img.c qemu-img: extend cvtnum() and use it in more places 3 months ago
qemu-io-cmds.c qapi: Move include/qapi/qmp/ to include/qobject/ 8 months ago
qemu-io.c qapi: Move include/qapi/qmp/ to include/qobject/ 8 months ago
qemu-keymap.c cleanup: Drop pointless return at end of function 5 months ago
qemu-nbd.c nbd: Defer trace init until after daemonization 7 months ago
qemu-options.hx qemu-options.hx: Document the arm-smmuv3 device 2 weeks ago
qemu.nsi pc-bios: Move device tree files in their own subdir 5 months ago
qemu.sasl sasl: remove comment about obsolete kerberos versions 4 years ago
replication.c replication: move include out of root directory 4 years ago
target-info-stub.c cpu-target: build compilation unit once for user/system 1 month ago
target-info.c qemu: Convert target_words_bigendian() to TargetInfo API 3 months ago
trace-events system/dma-helpers.c: Move trace events to system/trace-events 11 months ago
version.rc configure: remove CONFIG_FILEVERSION and CONFIG_PRODUCTVERSION 5 years ago

README.rst

===========
QEMU README
===========

QEMU is a generic and open source machine & userspace emulator and
virtualizer.

QEMU is capable of emulating a complete machine in software without any
need for hardware virtualization support. By using dynamic translation,
it achieves very good performance. QEMU can also integrate with the Xen
and KVM hypervisors to provide emulated hardware while allowing the
hypervisor to manage the CPU. With hypervisor support, QEMU can achieve
near native performance for CPUs. When QEMU emulates CPUs directly it is
capable of running operating systems made for one machine (e.g. an ARMv7
board) on a different machine (e.g. an x86_64 PC board).

QEMU is also capable of providing userspace API virtualization for Linux
and BSD kernel interfaces. This allows binaries compiled against one
architecture ABI (e.g. the Linux PPC64 ABI) to be run on a host using a
different architecture ABI (e.g. the Linux x86_64 ABI). This does not
involve any hardware emulation, simply CPU and syscall emulation.

QEMU aims to fit into a variety of use cases. It can be invoked directly
by users wishing to have full control over its behaviour and settings.
It also aims to facilitate integration into higher level management
layers, by providing a stable command line interface and monitor API.
It is commonly invoked indirectly via the libvirt library when using
open source applications such as oVirt, OpenStack and virt-manager.

QEMU as a whole is released under the GNU General Public License,
version 2. For full licensing details, consult the LICENSE file.


Documentation
=============

Documentation can be found hosted online at
`<https://www.qemu.org/documentation/>`_. The documentation for the
current development version that is available at
`<https://www.qemu.org/docs/master/>`_ is generated from the ``docs/``
folder in the source tree, and is built by `Sphinx
<https://www.sphinx-doc.org/en/master/>`_.


Building
========

QEMU is multi-platform software intended to be buildable on all modern
Linux platforms, OS-X, Win32 (via the Mingw64 toolchain) and a variety
of other UNIX targets. The simple steps to build QEMU are:


.. code-block:: shell

  mkdir build
  cd build
  ../configure
  make

Additional information can also be found online via the QEMU website:

* `<https://wiki.qemu.org/Hosts/Linux>`_
* `<https://wiki.qemu.org/Hosts/Mac>`_
* `<https://wiki.qemu.org/Hosts/W32>`_


Submitting patches
==================

The QEMU source code is maintained under the GIT version control system.

.. code-block:: shell

   git clone https://gitlab.com/qemu-project/qemu.git

When submitting patches, one common approach is to use 'git
format-patch' and/or 'git send-email' to format & send the mail to the
qemu-devel@nongnu.org mailing list. All patches submitted must contain
a 'Signed-off-by' line from the author. Patches should follow the
guidelines set out in the `style section
<https://www.qemu.org/docs/master/devel/style.html>`_ of
the Developers Guide.

Additional information on submitting patches can be found online via
the QEMU website:

* `<https://wiki.qemu.org/Contribute/SubmitAPatch>`_
* `<https://wiki.qemu.org/Contribute/TrivialPatches>`_

The QEMU website is also maintained under source control.

.. code-block:: shell

  git clone https://gitlab.com/qemu-project/qemu-web.git

* `<https://www.qemu.org/2017/02/04/the-new-qemu-website-is-up/>`_

A 'git-publish' utility was created to make above process less
cumbersome, and is highly recommended for making regular contributions,
or even just for sending consecutive patch series revisions. It also
requires a working 'git send-email' setup, and by default doesn't
automate everything, so you may want to go through the above steps
manually for once.

For installation instructions, please go to:

*  `<https://github.com/stefanha/git-publish>`_

The workflow with 'git-publish' is:

.. code-block:: shell

  $ git checkout master -b my-feature
  $ # work on new commits, add your 'Signed-off-by' lines to each
  $ git publish

Your patch series will be sent and tagged as my-feature-v1 if you need to refer
back to it in the future.

Sending v2:

.. code-block:: shell

  $ git checkout my-feature # same topic branch
  $ # making changes to the commits (using 'git rebase', for example)
  $ git publish

Your patch series will be sent with 'v2' tag in the subject and the git tip
will be tagged as my-feature-v2.

Bug reporting
=============

The QEMU project uses GitLab issues to track bugs. Bugs
found when running code built from QEMU git or upstream released sources
should be reported via:

* `<https://gitlab.com/qemu-project/qemu/-/issues>`_

If using QEMU via an operating system vendor pre-built binary package, it
is preferable to report bugs to the vendor's own bug tracker first. If
the bug is also known to affect latest upstream code, it can also be
reported via GitLab.

For additional information on bug reporting consult:

* `<https://wiki.qemu.org/Contribute/ReportABug>`_


ChangeLog
=========

For version history and release notes, please visit
`<https://wiki.qemu.org/ChangeLog/>`_ or look at the git history for
more detailed information.


Contact
=======

The QEMU community can be contacted in a number of ways, with the two
main methods being email and IRC:

* `<mailto:qemu-devel@nongnu.org>`_
* `<https://lists.nongnu.org/mailman/listinfo/qemu-devel>`_
* #qemu on irc.oftc.net

Information on additional methods of contacting the community can be
found online via the QEMU website:

* `<https://wiki.qemu.org/Contribute/StartHere>`_