QEMU With E2K User Support
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Klaus Jensen d72a712ce0 hw/i2c/aspeed: add DEV_ADDR in old register mode
Add support for writing and reading the device address register in old
register mode.

On the AST2400 (only 1 slave address)

  * no upper bits

On the AST2500 (2 possible slave addresses),

  * bit[31] : Slave Address match indicator
  * bit[30] : Slave Address Receiving pending

On the AST2600 (3 possible slave addresses),

  * bit[31-30] : Slave Address match indicator
  * bit[29] : Slave Address Receiving pending

The model could be more precise to take into account all fields but
since the Linux driver is masking the register value being set, it
should be fine. See commit 3fb2e2aeafb2 ("i2c: aspeed: disable
additional device addresses on ast2[56]xx") from Zeiv. This can be
addressed later.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
[ clg: add details to commit log ]
Message-Id: <20220601210831.67259-3-its@irrelevant.dk>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-06-22 09:49:34 +02:00
.github/workflows
.gitlab/issue_templates
.gitlab-ci.d vfio-user: build library 2022-06-15 16:42:33 +01:00
accel accel/tcg: Reorganize tcg_accel_ops_init() 2022-06-20 13:11:36 -07:00
audio introduce -audio as a replacement for -soundhw 2022-05-14 12:33:44 +02:00
authz
backends crypto: Introduce RSA algorithm 2022-06-16 12:54:58 -04:00
block linux-aio: explain why max batch is checked in laio_io_unplug() 2022-06-15 16:43:42 +01:00
bsd-user bsd-user: Implement acct and sync 2022-06-14 08:17:44 -06:00
chardev QIOChannel: Add flags on io_writev and introduce io_flush callback 2022-05-16 13:56:24 +01:00
common-user
configs target/loongarch: Add gdb support. 2022-06-06 18:14:13 +00:00
contrib contrib/elf2dmp: add ELF dump header checking 2022-05-25 21:26:35 +02:00
crypto test/crypto: Add test suite for crypto akcipher 2022-05-26 11:41:54 +01:00
disas disas: Remove old libopcode ppc disassembler 2022-05-09 08:21:05 +02:00
docs docs/cxl: Add switch documentation 2022-06-16 12:54:57 -04:00
dtc@b6910bec11
dump
ebpf
fpu
fsdev
gdb-xml target/loongarch: Add gdb support. 2022-06-06 18:14:13 +00:00
hw hw/i2c/aspeed: add DEV_ADDR in old register mode 2022-06-22 09:49:34 +02:00
include hw/i2c/aspeed: add DEV_ADDR in old register mode 2022-06-22 09:49:34 +02:00
io QIOChannelSocket: Implement io_writev zero copy flag & io_flush for CONFIG_LINUX 2022-05-16 13:56:24 +01:00
libdecnumber
linux-headers linux-headers: Update to v5.18-rc6 2022-05-13 08:20:11 -06:00
linux-user linux-user/aarch64: Introduce sve_vq 2022-06-08 19:38:55 +01:00
meson@12f9f04ba0
migration multifd: Implement zero copy write in multifd migration (multifd-zero-copy) 2022-05-16 13:56:24 +01:00
monitor hmp: add filtering of statistics by name 2022-06-14 16:50:30 +02:00
nbd nbd/server: Allow MULTI_CONN for shared writable exports 2022-05-12 13:10:52 +02:00
net net/vmnet: implement bridged mode (vmnet-bridged) 2022-05-17 16:48:23 +08:00
pc-bios configure: enable cross compilation of vof 2022-06-01 15:47:43 +01:00
plugins Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
po
python Fix 'writeable' typos 2022-06-08 19:38:47 +01:00
qapi * statistics subsystem 2022-06-16 07:13:04 -07:00
qga meson: qga: do not use deprecated meson.build_root() 2022-06-06 16:04:08 +02:00
qobject
qom
replay replay: simplify async event processing 2022-06-06 09:26:53 +02:00
roms New SeaBIOS-hppa version 6 2022-05-26 12:54:29 +02:00
scripts vfio-user: build library 2022-06-15 16:42:33 +01:00
scsi QIOChannel: Add flags on io_writev and introduce io_flush callback 2022-05-16 13:56:24 +01:00
semihosting semihosting/config: Merge --semihosting-config option groups 2022-06-10 14:32:36 +01:00
slirp@9d59bb775d slirp: bump submodule past 4.7 release 2022-05-12 12:29:44 +02:00
softmmu softmmu: Always initialize xlat in address_space_translate_for_iotlb 2022-06-21 09:26:16 -07:00
storage-daemon include: move qemu_*_exec_dir() to cutils 2022-05-28 11:42:56 +02:00
stubs vfio-user: handle device interrupts 2022-06-15 16:43:42 +01:00
subprojects vfio-user: build library 2022-06-15 16:42:33 +01:00
target Speed empty timer list in qemu_clock_deadline_ns_all. 2022-06-21 13:47:20 -07:00
tcg tcg/ppc: implement rem[u]_i{32,64} with mod[su][wd] 2022-06-20 12:56:28 -07:00
tests test/avocado/machine_aspeed.py: Add an I2C RTC test 2022-06-22 09:49:33 +02:00
tools Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
trace
ui ui: Deliver refresh rate via QemuUIInfo 2022-06-14 10:34:37 +02:00
util Speed empty timer list in qemu_clock_deadline_ns_all. 2022-06-21 13:47:20 -07:00
.cirrus.yml cirrus/win32: upgrade mingw base packages 2022-05-09 08:21:14 +02:00
.dir-locals.el
.editorconfig
.exrc
.gdbinit
.gitattributes
.gitignore
.gitlab-ci.yml
.gitmodules vfio-user: build library 2022-06-15 16:42:33 +01:00
.gitpublish
.mailmap MAINTAINERS/.mailmap: update email for Leif Lindholm 2022-05-09 11:47:53 +01:00
.patchew.yml
.readthedocs.yml
.travis.yml
block.c
blockdev-nbd.c nbd/server: Allow MULTI_CONN for shared writable exports 2022-05-12 13:10:52 +02:00
blockdev.c
blockjob.c
configure * statistics subsystem 2022-06-16 07:13:04 -07:00
COPYING
COPYING.LIB
cpu.c
cpus-common.c
disas.c disas: Remove old libopcode ppc disassembler 2022-05-09 08:21:05 +02:00
event-loop-base.c util/event-loop-base: Introduce options to set the thread pool size 2022-05-09 10:43:23 +01:00
gdbstub.c gdbstub: Don't use GDB syscalls if no GDB is attached 2022-06-10 14:32:36 +01:00
gitdm.config
hmp-commands-info.hx hmp: add filtering of statistics by name 2022-06-14 16:50:30 +02:00
hmp-commands.hx block: add more commands to preconfig mode 2022-06-14 16:50:30 +02:00
iothread.c util/event-loop-base: Introduce options to set the thread pool size 2022-05-09 10:43:23 +01:00
job-qmp.c
job.c
Kconfig
Kconfig.host vfio-user: build library 2022-06-15 16:42:33 +01:00
LICENSE
MAINTAINERS vfio-user: handle device interrupts 2022-06-15 16:43:42 +01:00
Makefile build: include pc-bios/ part in the ROMS variable 2022-06-15 11:12:32 +02:00
memory_ldst.c.inc
meson_options.txt vfio-user: build library 2022-06-15 16:42:33 +01:00
meson.build * statistics subsystem 2022-06-16 07:13:04 -07:00
module-common.c
os-posix.c
os-win32.c
page-vary-common.c
page-vary.c
qemu-bridge-helper.c
qemu-edid.c
qemu-img-cmds.hx
qemu-img.c
qemu-io-cmds.c
qemu-io.c include: move qemu_*_exec_dir() to cutils 2022-05-28 11:42:56 +02:00
qemu-keymap.c
qemu-nbd.c qemu-nbd: Pass max connections to blockdev layer 2022-05-12 13:10:52 +02:00
qemu-options.hx hw/cxl: Make the CXL fixed memory window setup a machine parameter. 2022-06-09 19:32:49 -04:00
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>`_