QEMU With E2K User Support
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Andrew Melnychenko 333b3e5fab ebpf: Added eBPF map update through mmap.
Changed eBPF map updates through mmaped array.
Mmaped arrays provide direct access to map data.
It should omit using bpf_map_update_elem() call,
which may require capabilities that are not present.

Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-03-12 19:31:46 +08:00
.github/workflows
.gitlab/issue_templates
.gitlab-ci.d gitlab-ci: add manual job to run Coverity 2024-03-08 19:11:00 +01:00
accel hw/xen: Extract 'xen_igd.h' from 'xen_pt.h' 2024-03-09 18:51:45 +01:00
audio audio: Depend on dbus_display1_dep 2024-02-16 17:27:22 +04:00
authz
backends oslib-posix: initialize backend memory objects in parallel 2024-02-06 08:15:22 +01:00
block - LUKS support for detached headers 2024-02-12 14:13:58 +00:00
bsd-user gdbstub: Call gdbserver_fork() both in parent and in child 2024-03-06 12:35:19 +00:00
chardev char: Slightly better error reporting when chardev is in use 2024-03-09 18:56:37 +03:00
common-user
configs mips: do not list individual devices from configs/ 2024-03-08 15:51:22 +01:00
contrib contrib/plugins/howvec: migrate to new per_vcpu API 2024-03-06 12:35:44 +00:00
crypto crypto: Introduce 'detached-header' field in QCryptoBlockInfoLUKS 2024-02-09 12:50:37 +00:00
disas target/riscv: honour show_opcodes when disassembling 2024-03-06 12:35:51 +00:00
docs Misc HW patch queue 2024-03-09 20:12:21 +00:00
dump dump: Fix HMP dump-guest-memory -z without -R 2024-01-30 21:20:20 +03:00
ebpf ebpf: Added eBPF map update through mmap. 2024-03-12 19:31:46 +08:00
fpu
fsdev configure, meson: rename targetos to host_os 2023-12-31 09:11:29 +01:00
gdb-xml
gdbstub gdbstub: Implement follow-fork-mode child 2024-03-06 12:35:19 +00:00
host/include
hw Avoid unaligned fetch in ladr_match() 2024-03-12 19:28:32 +08:00
include vfio queue: 2024-03-11 18:42:23 +00:00
io io: fsync before closing a file channel 2024-03-01 15:42:04 +08:00
libdecnumber
linux-headers linux-headers: Update to Linux v6.8-rc6 2024-03-08 20:48:03 +10:00
linux-user linux-user/riscv: Add Ztso extension to hwprobe 2024-03-08 20:48:03 +10:00
migration QAPI patches patches for 2024-03-04 2024-03-05 11:20:15 +00:00
monitor monitor/target: Include missing 'exec/memory.h' header 2024-02-13 10:59:25 +03:00
nbd
net migration: MigrationNotifyFunc 2024-02-28 11:31:28 +08:00
pc-bios pc-bios/README: Add information about hppa-firmware 2024-03-03 06:41:19 +01:00
plugins plugins: cleanup codepath for previous inline operation 2024-03-06 12:35:50 +00:00
po
python
qapi qdev: Add a granule_mode property 2024-03-09 19:17:01 +01:00
qga qga-win: Add support of Windows Server 2025 in get-osinfo command 2024-03-11 18:24:39 +02:00
qobject
qom hw/acpi: move object_resolve_type_unambiguous to core QOM 2024-02-27 09:36:41 +01:00
replay replay: Improve error messages about configuration conflicts 2024-03-09 18:56:36 +03:00
roms roms/hppa: Add build rules for hppa-firmware 2024-03-03 06:41:19 +01:00
scripts trivial patches for 2024-03-09 2024-03-09 20:12:05 +00:00
scsi configure, meson: rename targetos to host_os 2023-12-31 09:11:29 +01:00
semihosting {linux,bsd}-user: Introduce get_task_state() 2024-03-06 12:35:19 +00:00
stats
storage-daemon meson: remove config_targetos 2023-12-31 09:11:28 +01:00
stubs hw/xen: Remove unnecessary xen_hvm_inject_msi() stub 2024-03-09 18:51:45 +01:00
subprojects userfaultfd: use 1ULL to build ioctl masks 2024-01-29 11:02:12 +08:00
system Misc HW patch queue 2024-03-09 20:12:21 +00:00
target Misc HW patch queue 2024-03-09 20:12:21 +00:00
tcg tcg/optimize: fix uninitialized variable 2024-02-29 11:36:05 -10:00
tests tests/unit/test-smp-parse: Test "parameter=0" SMP configurations 2024-03-09 19:17:01 +01:00
tools
trace tracing: install trace events file only if necessary 2023-12-27 05:01:55 -05:00
ui ui/cocoa: Remove stretch_video flag 2024-03-05 12:04:41 +01:00
util oslib-posix: fix memory leak in touch_all_pages 2024-03-08 15:51:22 +01:00
.dir-locals.el
.editorconfig
.exrc
.gdbinit
.git-blame-ignore-revs
.gitattributes
.gitignore
.gitlab-ci.yml
.gitmodules
.gitpublish
.mailmap mailmap: Fix Stefan Weil email 2024-01-30 21:20:20 +03:00
.patchew.yml
.readthedocs.yml readthodocs: fully specify a build environment 2024-01-12 13:23:48 +00:00
.travis.yml
block.c block: Support detached LUKS header creation using qemu-img 2024-02-09 12:50:37 +00:00
blockdev-nbd.c
blockdev.c blockdev: Fix block_resize error reporting for op blockers 2024-03-09 18:56:37 +03:00
blockjob.c
configure configure: put all symlink creation together 2024-02-16 13:56:09 +01:00
COPYING
COPYING.LIB
cpu-common.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
cpu-target.c cpu: Remove page_size_init 2024-02-29 11:35:37 -10:00
event-loop-base.c
gitdm.config
hmp-commands-info.hx hmp: Add option to info qtree to omit details 2024-03-09 19:17:01 +01:00
hmp-commands.hx hmp: Remove deprecated 'singlestep' command 2024-01-19 11:38:32 +01:00
iothread.c iothread: Simplify expression in qemu_in_iothread() 2024-02-13 10:59:25 +03:00
job-qmp.c
job.c
Kconfig
Kconfig.host
LICENSE
MAINTAINERS hw/gpio: Implement STM32L4x5 GPIO 2024-03-07 12:19:25 +00:00
Makefile Makefile: clean qemu-iotests output 2023-12-31 09:11:28 +01:00
meson_options.txt meson: fix type of "relocatable" option 2023-12-31 09:11:27 +01:00
meson.build meson: Remove --warn-common ldflag 2024-03-08 15:51:21 +01:00
module-common.c
os-posix.c qemu_init: increase NOFILE soft limit on POSIX 2024-02-09 12:47:58 +00:00
os-win32.c
page-vary-common.c
page-vary-target.c
pythondeps.toml
qemu-bridge-helper.c
qemu-edid.c
qemu-img-cmds.hx docs/devel/docs: Document .hx file syntax 2024-01-15 17:12:22 +00:00
qemu-img.c
qemu-io-cmds.c
qemu-io.c
qemu-keymap.c
qemu-nbd.c qemu-nbd: mention --tls-hostname option in qemu-nbd --help 2024-02-13 10:59:25 +03:00
qemu-options.hx qemu-options.hx: Don't claim "-serial" has limit of 4 serial ports 2024-03-05 13:22:56 +00:00
qemu.nsi
qemu.sasl
README.rst
replication.c
trace-events
VERSION
version.rc

===========
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>`_