Go to file
Peter Maydell 873ec69aeb Minor changes to:
Add an SMBus config entry
 
 Cleanup/simplify/document some I2C interfaces
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE/Q1c5nzg9ZpmiCaGYfOMkJGb/4EFAl8Qko8ACgkQYfOMkJGb
 /4FZTw//bMJWaXncOCYGJS8k4mCAgE7Bbo7tz2AkIqE59ty6kQ0fjDX/olMa9bLi
 mxFEEPw1mO2A65A6najWMjhxJnuNa+a66xWpQQRfuWXTXO4zM7I8QxC6pnYjCXrN
 iYPfv6IS5TQMsKrRP3kvXueW3jkpYYyUocww9CF/CoB1YiNhVpx/p7Ov4nwdBV+6
 GU7EBenu+X0a4mk5mX7DZJ7IPvIXUSa8HTfhpiV3doAe+31W2c839+u6ZcuN6JQ5
 Vxdg5ApWasoMdEyaFvWowx2cKMZK/TYNRLJcKtxHgS5ZpfXr+lwMe3Hiv++QJw6a
 aedaZl1eYklHcY6qOD9JFlbSOx6y4pJUi2NB4SXHtji7tcTgErygRVf8PukyXuU3
 laKsavBmM0Lc/w4BbyUP+L+a/YTY+vv8WHi+bOQH06HohQpZGrycf7iPL3MwYmdG
 oCf8uls5MPdPL1N6wNcGbd1F921IVd5mnNwuSfAau5ocgyUjHMuxlXradeFuJfY4
 ihIp49i3dS+f01txeM+zPIMAxImM+tpuH02nzDK9isztCZIo34P4iNMYTB0v4e4L
 ESRqohhyC55Tg6vudJBpjJLK/trz7TpyZnEOnCo5pwHvbnFyWOZY0F8Pj1LTfDMf
 sD+Nvm9yk6bNIvmRHBCvCiWX2D/Y6OC5vZdVNt+kqpSkUavxMGE=
 =SsWF
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/cminyard/tags/for-qemu-i2c-5' into staging

Minor changes to:

Add an SMBus config entry

Cleanup/simplify/document some I2C interfaces

# gpg: Signature made Thu 16 Jul 2020 18:46:55 BST
# gpg:                using RSA key FD0D5CE67CE0F59A6688268661F38C90919BFF81
# gpg: Good signature from "Corey Minyard <cminyard@mvista.com>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@acm.org>" [unknown]
# gpg:                 aka "Corey Minyard <corey@minyard.net>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@mvista.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FD0D 5CE6 7CE0 F59A 6688  2686 61F3 8C90 919B FF81

* remotes/cminyard/tags/for-qemu-i2c-5:
  hw/i2c: Document the I2C qdev helpers
  hw/i2c: Rename i2c_create_slave() as i2c_slave_create_simple()
  hw/i2c: Rename i2c_realize_and_unref() as i2c_slave_realize_and_unref()
  hw/i2c: Rename i2c_try_create_slave() as i2c_slave_new()
  hw/i2c/aspeed_i2c: Simplify aspeed_i2c_get_bus()
  hw/i2c/Kconfig: Add an entry for the SMBus

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-20 11:03:09 +01:00
.github
.gitlab-ci.d gitlab-ci/containers: Add missing wildcard where we should look for changes 2020-07-15 11:52:43 +01:00
accel tcg/cpu-exec: precise single-stepping after an interrupt 2020-07-17 11:09:34 -07:00
audio ossaudio: fix out of bounds write 2020-07-13 11:38:40 +02:00
authz
backends error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
block file-posix: Fix leaked fd in raw_open_common() error path 2020-07-17 14:20:57 +02:00
bsd-user
capstone@22ead3e0bf
chardev chardev: Extract system emulation specific code 2020-07-13 11:59:47 +04:00
contrib qemu-option: Use returned bool to check for failure 2020-07-10 15:17:35 +02:00
crypto qom: Put name parameter before value / visitor parameter 2020-07-10 15:18:08 +02:00
default-configs hw/avr: Add limited support for some Arduino boards 2020-07-11 11:02:05 +02:00
disas disas/sh4: Add missing fallthrough annotations 2020-07-13 11:40:52 +02:00
docs Fix typo in newly added documentation. 2020-07-18 17:27:34 +01:00
dtc@85e5d83984
dump error: Eliminate error_propagate() manually 2020-07-10 15:18:08 +02:00
fpu fpu/softfloat: fix up float16 nan recognition 2020-07-15 11:52:43 +01:00
fsdev 9p: null terminate fs driver options list 2020-07-10 12:48:06 +02:00
gdb-xml target/avr: CPU class: Add GDB support 2020-07-10 17:58:32 +02:00
hw Minor changes to: 2020-07-20 11:03:09 +01:00
include Minor changes to: 2020-07-20 11:03:09 +01:00
io
libdecnumber
linux-headers linux-headers: update again to 5.8 2020-07-10 19:26:55 -04:00
linux-user linux-user: fix print_syscall_err() when syscall returned value is negative 2020-07-14 09:29:14 +02:00
migration migration/block-dirty-bitmap: fix add_bitmaps_to_list 2020-07-17 08:18:51 -05:00
monitor monitor/misc: Remove unused "chardev/char-mux.h" include 2020-07-13 11:59:47 +04:00
nbd nbd: make nbd_export_close_all() synchronous 2020-07-17 14:20:57 +02:00
net net: detect errors from probing vnet hdr flag for TAP devices 2020-07-15 21:00:13 +08:00
pc-bios Update OpenBIOS images to 75fbb41d built from submodule. 2020-07-07 21:54:37 +01:00
plugins
po
python/qemu python/qmp.py: add QMPProtocolError 2020-07-14 22:22:22 +02:00
qapi Remove VXHS block device 2020-07-17 14:20:57 +02:00
qga qga: Use qemu_get_host_name() instead of g_get_host_name() 2020-07-13 17:44:58 -05:00
qobject
qom qom: Plug memory leak in "info qom-tree" 2020-07-17 10:44:23 +02:00
replay
roms Update OpenBIOS images to 75fbb41d built from submodule. 2020-07-07 21:54:37 +01:00
scripts python/qmp.py: re-absorb MonitorResponseError 2020-07-14 22:22:22 +02:00
scsi
slirp@2faae0f778
softmmu 8bit AVR port from Michael Rolnik. 2020-07-11 19:27:59 +01:00
storage-daemon
stubs trivial branch patches 20200707 2020-07-09 14:13:19 +01:00
target i386: hvf: Explicitly set CR4 guest/host mask 2020-07-16 14:15:13 -04:00
tcg tcg: Save/restore vecop_list around minmax fallback 2020-07-16 13:09:22 -07:00
tests Block layer patches: 2020-07-17 14:58:13 +01:00
tools/virtiofsd
trace
ui bugfixes for audio, usb, ui and docs. 2020-07-13 16:58:44 +01:00
util net: check if the file descriptor is valid before using it 2020-07-15 21:00:13 +08:00
.cirrus.yml .cirrus.yml: add bash to the brew packages 2020-07-11 15:53:29 +01:00
.dir-locals.el
.editorconfig
.exrc
.gdbinit
.gitignore .gitignore: un-ignore .gitlab-ci.d 2020-07-11 15:53:00 +01:00
.gitlab-ci.yml gitlab-ci.yml: Add fuzzer tests 2020-07-17 10:44:23 +02:00
.gitmodules
.gitpublish
.mailmap
.patchew.yml
.readthedocs.yml
.shippable.yml shippable: pull images from registry instead of building 2020-07-11 15:53:00 +01:00
.travis.yml .travis.yml: skip ppc64abi32-linux-user with plugins 2020-07-15 11:57:17 +01:00
block.c block: Require aligned image size to avoid assertion failure 2020-07-17 14:20:57 +02:00
blockdev-nbd.c
blockdev.c block: Add support to warn on backing file change without format 2020-07-14 15:18:59 +02:00
blockjob.c
bootdevice.c error: Eliminate error_propagate() manually 2020-07-10 15:18:08 +02:00
Changelog
CODING_STYLE.rst
configure Block layer patches: 2020-07-17 14:58:13 +01:00
COPYING
COPYING.LIB
cpus-common.c cpus: Move CPU code from exec.c to cpus-common.c 2020-07-10 18:02:24 -04:00
device_tree.c
disas.c
dma-helpers.c
exec-vary.c
exec.c cpus: Move CPU code from exec.c to cpus-common.c 2020-07-10 18:02:24 -04:00
gdbstub.c
gitdm.config
hmp-commands-info.hx
hmp-commands.hx
iothread.c error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
job-qmp.c
job.c
Kconfig Makefile: simplify MINIKCONF rules 2020-07-10 18:02:21 -04:00
Kconfig.host accel/Kconfig: Extract accel selectors into their own config 2020-07-10 18:02:21 -04:00
LICENSE
MAINTAINERS vvfat: set status to odd fixes 2020-07-17 14:20:57 +02:00
Makefile Makefile: Remove config-devices.mak on "make clean" 2020-07-20 11:02:46 +01:00
Makefile.objs
Makefile.target softmmu: move softmmu only files from root 2020-07-10 18:02:24 -04:00
memory_ldst.inc.c
module-common.c
os-posix.c build: Check that mlockall() exists 2020-07-13 14:36:09 +01:00
os-win32.c
qdev-monitor.c hmp: Ignore Error objects where the return value suffices 2020-07-10 15:18:09 +02:00
qemu-bridge-helper.c
qemu-edid.c
qemu-img-cmds.hx
qemu-img.c qemu-img resize: Require --shrink for shrinking all image formats 2020-07-17 14:20:57 +02:00
qemu-io-cmds.c
qemu-io.c
qemu-keymap.c
qemu-nbd.c
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx ipmi: Fix a man page entry 2020-07-17 11:39:46 -05:00
qemu-seccomp.c
qemu-storage-daemon.c
qemu.nsi
qemu.sasl
README.rst
replication.c
replication.h
rules.mak
thunk.c
tpm.c error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
trace-events
VERSION Update version for v5.1.0-rc0 release 2020-07-15 19:08:07 +01:00
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.


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


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

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

.. code-block:: shell

   git clone https://git.qemu.org/git/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 CODING_STYLE.rst file.

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

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

The QEMU website is also maintained under source control.

.. code-block:: shell

  git clone https://git.qemu.org/git/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 Launchpad as its primary upstream bug tracker. Bugs
found when running code built from QEMU git or upstream released sources
should be reported via:

* `<https://bugs.launchpad.net/qemu/>`_

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 launchpad.

For additional information on bug reporting consult:

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


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://qemu.org/Contribute/StartHere>`_