Original Xbox Emulator for Windows, macOS, and Linux (Active Development)
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Greg Kurz b4a378a7c5 xics: Link ICP_PROP_XICS property to ICPState::xics pointer
The ICP object has both a pointer and an ICP_PROP_XICS property pointing
to the XICS fabric. Confusing bugs could arise if these ever go out of
sync.

Change the property definition so that it explicitly sets the pointer.
The property isn't optional : not being able to set the link is a bug
and QEMU should rather abort than exit in this case.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157403284152.409804.17114564311521923733.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
accel kvm: Introduce KVM irqchip change notifier 2019-11-26 10:11:30 +11:00
audio audio: fix audio recording 2019-11-20 09:11:12 +01:00
authz
backends core: replace getpagesize() with qemu_real_host_page_size 2019-10-26 15:38:06 +02:00
block block/qcow2-bitmap: fix crash bug in qcow2_co_remove_persistent_dirty_bitmap 2019-12-09 09:23:04 -06:00
bsd-user *-user: plugin syscalls 2019-10-28 15:12:38 +00:00
capstone@22ead3e0bf
chardev
contrib vhost-user-input: use free(elem) instead of g_free(elem) 2019-11-20 04:57:22 -05:00
crypto crypto: add support for nettle's native XTS impl 2019-10-28 16:45:07 +01:00
default-configs Add Macintosh Quadra 800 machine in hw/m68k 2019-10-29 16:27:48 +00:00
disas
docs docs/devel: update tcg-plugins.rst with API versioning details 2019-11-20 10:53:31 +00:00
dtc@88f18909db
dump
fpu softfp: Added hardfloat conversion from float32 to float64 2019-10-30 19:03:37 +01:00
fsdev virtfs-proxy-helper: switch from libcap to libcap-ng 2019-12-02 15:26:33 +01:00
gdb-xml target/riscv: Expose "priv" register for GDB for reads 2019-10-28 07:47:29 -07:00
hw xics: Link ICP_PROP_XICS property to ICPState::xics pointer 2019-12-17 10:39:47 +11:00
include ppc/pnv: Add a PNOR model 2019-12-17 10:39:47 +11:00
io
libdecnumber
linux-headers
linux-user target/arm: Add support for DC CVAP & DC CVADP ins 2019-12-16 10:46:35 +00:00
migration migration: ram: Switch to ram block writeback 2019-12-16 10:46:35 +00:00
monitor monitor/qmp: resume monitor when clearing its queue 2019-11-19 08:21:47 +01:00
nbd nbd: Don't send oversize strings 2019-11-18 16:01:34 -06:00
net COLO-compare: Fix incorrect if logic 2019-10-29 10:28:07 +08:00
pc-bios pseries: Update SLOF firmware image 2019-12-09 12:16:26 +11:00
plugins tcg plugins: expose an API version concept 2019-11-12 14:32:55 +00:00
po ui/gtk: fix gettext message's charset. 2019-11-21 09:42:30 +01:00
python/qemu Python libs: close console sockets before shutting down the VMs 2019-10-28 19:04:04 -04:00
qapi bitmap: Enforce maximum bitmap name length 2019-11-18 16:01:34 -06:00
qga qga: fence guest-set-time if hwclock not available 2019-12-14 10:25:50 +01:00
qobject
qom qom: Fix error message in object_class_property_add() 2019-11-12 10:33:02 +01:00
replay
roms pseries: Update SLOF firmware image 2019-12-09 12:16:26 +11:00
scripts vmstate-static-checker: Fix for current python 2019-11-25 19:49:50 -03:00
scsi
slirp@126c04acba
stubs hw/pci-host/piix: Move i440FX declarations to hw/pci-host/i440fx.h 2019-11-05 23:33:12 +01:00
target target-arm queue: 2019-12-16 13:04:34 +00:00
tcg tcg/LICENSE: Remove out of date claim about TCG subdirectory licensing 2019-11-11 15:11:21 +01:00
tests MIPS queue for December 16th, 2019 2019-12-16 14:07:56 +00:00
trace trace: add mmu_index to mem_info 2019-10-28 15:12:38 +00:00
ui ui/gtk: fix gettext message's charset. 2019-11-21 09:42:30 +01:00
util Memory: Enable writeback for given memory region 2019-12-16 10:46:35 +00:00
.cirrus.yml cirrus.yml: add latest Xcode build target 2019-10-25 19:23:53 +01:00
.dir-locals.el
.editorconfig
.exrc
.gdbinit
.gitignore
.gitlab-ci.yml ci: Use libcap-ng 2019-12-09 18:00:08 +01:00
.gitmodules
.gitpublish
.mailmap MAINTAINERS: Update mail address of Aleksandar Rikalo 2019-10-25 18:37:01 +02:00
.patchew.yml
.shippable.yml tests/docker: set HOST_ARCH if we don't have ARCH 2019-10-25 19:24:21 +01:00
.travis.yml travis.yml: Drop libcap-dev 2019-12-09 18:00:22 +01:00
arch_init.c hw/m68k: add Nubus macfb video card 2019-10-28 19:06:49 +01:00
balloon.c
block.c block: Remove 'backing': null from bs->{explicit_,}options 2019-11-18 17:50:08 +01:00
blockdev-nbd.c nbd: Don't send oversize strings 2019-11-18 16:01:34 -06:00
blockdev.c block: Add @exact parameter to bdrv_co_truncate() 2019-10-28 12:00:07 +01:00
blockjob.c
bootdevice.c bootdevice: FW_CFG interface for LCHS values 2019-10-31 11:47:38 -04:00
bt-host.c
bt-vhci.c
Changelog
CODING_STYLE.rst
configure virtfs-proxy-helper: switch from libcap to libcap-ng 2019-12-02 15:26:33 +01:00
COPYING
COPYING.LIB
cpus-common.c cpu: introduce cpu_in_exclusive_context() 2019-10-28 15:12:38 +00:00
cpus.c cpu: hook plugin vcpu events 2019-10-28 15:12:38 +00:00
device_tree.c
device-hotplug.c
disas.c plugin: add qemu_plugin_insn_disas helper 2019-10-28 15:12:38 +00:00
dma-helpers.c
exec-vary.c exec: Cache TARGET_PAGE_MASK for TARGET_PAGE_BITS_VARY 2019-10-28 10:35:20 +01:00
exec.c Memory: Enable writeback for given memory region 2019-12-16 10:46:35 +00:00
gdbstub.c
gitdm.config
hmp-commands-info.hx
hmp-commands.hx
ioport.c
iothread.c
job-qmp.c
job.c
Kconfig.host
LICENSE tcg/LICENSE: Remove out of date claim about TCG subdirectory licensing 2019-11-11 15:11:21 +01:00
MAINTAINERS MAINTAINERS: Add a file to MIPS section 2019-12-16 13:16:15 +01:00
Makefile virtfs-proxy-helper: switch from libcap to libcap-ng 2019-12-02 15:26:33 +01:00
Makefile.objs
Makefile.target TCG Plugins initial implementation 2019-10-30 14:10:32 +00:00
memory_ldst.inc.c
memory_mapping.c
memory.c Memory: Enable writeback for given memory region 2019-12-16 10:46:35 +00:00
module-common.c
os-posix.c
os-win32.c
qdev-monitor.c migration: allow unplug during migration for failover devices 2019-10-29 18:55:26 -04:00
qemu-bridge-helper.c
qemu-deprecated.texi hw/mips: Deprecate the r4k machine 2019-12-16 13:16:15 +01:00
qemu-doc.texi buildfix: update texinfo menu 2019-11-18 10:33:29 +00:00
qemu-edid.c
qemu-img-cmds.hx
qemu-img.c Revert "qemu-img: Check post-truncation size" 2019-10-28 12:10:03 +01:00
qemu-img.texi
qemu-io-cmds.c block: Pass truncate exact=true where reasonable 2019-10-28 12:08:45 +01:00
qemu-io.c
qemu-keymap.c
qemu-nbd.c nbd: Don't send oversize strings 2019-11-18 16:01:34 -06:00
qemu-nbd.texi
qemu-option-trace.texi
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx Pull request 2019-12-13 18:14:07 +00:00
qemu-seccomp.c
qemu-tech.texi
qemu.nsi
qemu.sasl
qtest.c
README.rst
replication.c
replication.h
rules.mak
thunk.c
tpm.c
trace-events trace: add mmu_index to mem_info 2019-10-28 15:12:38 +00:00
VERSION Open 5.0 development tree 2019-12-13 11:59:06 +00:00
version.rc
vl.c virtfs: Remove the deprecated "-virtfs_synth" option 2019-12-09 18:00:35 +01:00

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