Go to file
Peter Maydell 9c353b2fc9 qemu-ga patch queue for hard-freeze
* fix undefined C behavior with guest-file-* interfaces
 * fix w32 installer issues
 * fix crash for large file reads via guest-file-read on windows
 * add missing man page documentation for virtio-vsock
 -----BEGIN PGP SIGNATURE-----
 
 iQFOBAABCgA4FiEEzqzJ4VU066u4LT+gM1PJzvEItYQFAl56OSQaHG1kcm90aEBs
 aW51eC52bmV0LmlibS5jb20ACgkQM1PJzvEItYRXsgf/cAg9ZZkmyYDuzgFX6HGb
 ZWEL1EnSl423w0rvimVWuLa6n5j+BO/OjWNLmpdbWKP77EmCD2XwGFPcjZ4xBzKQ
 DdFzr5OiQQpFjzBaF7/ZU04t43nRBKlgt/Fse845Feu7MqsBoR2mMSKl6XscX/oz
 /KJ41KsfzuydIhCeXEY6kQ2dzoqlWsZYMwMkHeu3S7tbHdYslZCOK3VO2VQSuNd4
 zqrS5zdUgA8xFLSQ2EIAtBCLdltkAWnP5LPsvNukVUWf75c7e4yblycDJ8LUrszM
 V/P1gCgvMHqQYxLlyKkFJfcGPJvi3vFBTD+fDxTaCs/41iaugwFbNzzHTDmhM93z
 RQ==
 =eJGx
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2020-03-24-tag0' into staging

qemu-ga patch queue for hard-freeze

* fix undefined C behavior with guest-file-* interfaces
* fix w32 installer issues
* fix crash for large file reads via guest-file-read on windows
* add missing man page documentation for virtio-vsock

# gpg: Signature made Tue 24 Mar 2020 16:45:24 GMT
# gpg:                using RSA key CEACC9E15534EBABB82D3FA03353C9CEF108B584
# gpg:                issuer "mdroth@linux.vnet.ibm.com"
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>" [full]
# gpg:                 aka "Michael Roth <mdroth@utexas.edu>" [full]
# gpg:                 aka "Michael Roth <mdroth@linux.vnet.ibm.com>" [full]
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D  3FA0 3353 C9CE F108 B584

* remotes/mdroth/tags/qga-pull-2020-03-24-tag0:
  qemu-ga: document vsock-listen in the man page
  qga: Fix undefined C behavior
  qga-win: prevent crash when executing guest-file-read with large count
  qga-win: Handle VSS_E_PROVIDER_ALREADY_REGISTERED error
  qga: Installer: Wait for installation to finish

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-24 16:56:05 +00:00
.gitlab-ci.d gitlab-ci.yml: Add jobs to build OpenSBI firmware binaries 2020-03-16 17:03:50 -07:00
accel tcg: Remove tcg-runtime-gvec.c DO_CMP0 2020-03-17 08:41:07 -07:00
audio audio: fix saturation nonlinearity in clip_* functions 2020-03-16 10:18:07 +01:00
authz authz: fix usage of bool in listfile.c 2020-02-07 12:22:19 +00:00
backends hostmem: fix strict bind policy 2020-02-19 16:50:02 +00:00
block block/qcow2: zero data_file child after free 2020-03-24 11:41:46 +01:00
bsd-user misc: Replace zero-length arrays with flexible array member (automatic) 2020-03-16 22:07:42 +01:00
capstone@22ead3e0bf
chardev chardev: Improve error report by calling error_setg_win32() 2020-03-09 13:36:15 +01:00
contrib build-sys: do not make qemu-ga link with pixman 2020-03-16 23:02:22 +01:00
crypto luks: extract qcrypto_block_calculate_payload_offset() 2020-03-11 12:42:29 +01:00
default-configs Add rx-softmmu 2020-03-19 17:58:05 +01:00
disas target/mips: Add implementation of GINVT instruction 2020-01-29 19:28:52 +01:00
docs qemu-ga: document vsock-listen in the man page 2020-03-24 11:32:19 -05:00
dtc@88f18909db
dump hmp: drop Error pointer indirection in hmp_handle_error 2019-12-18 08:36:16 +01:00
fpu softfp: Added hardfloat conversion from float32 to float64 2019-10-30 19:03:37 +01:00
fsdev virtfs-proxy-helper: Make the helper_opts[] array const 2020-03-09 15:59:31 +01:00
gdb-xml target/rx: CPU definitions 2020-03-19 17:58:05 +01:00
hw ppc/ppc405_boards: Remove unnecessary NULL check 2020-03-24 11:56:37 +11:00
include hw/arm/bcm283x: Correct the license text 2020-03-23 17:22:30 +00:00
io io/channel-websock: treat 'binary' and no sub-protocol as the same 2020-02-07 12:22:18 +00:00
libdecnumber
linux-headers linux-headers: update 2020-02-26 18:57:07 +01:00
linux-user target/ppc: don't byte swap ELFv2 signal handler 2020-03-24 11:56:37 +11:00
migration migration: recognize COLO as part of activating process 2020-03-13 09:36:30 +00:00
monitor net: Track netdevs in NetClientState rather than QemuOpt 2020-03-17 21:50:36 +01:00
nbd nbd/server: use bdrv_dirty_bitmap_next_dirty_area 2020-03-18 14:03:46 -04:00
net QAPI patches for 2020-03-17 2020-03-19 10:18:07 +00:00
pc-bios ppc patch queue 2020-03-17 2020-03-18 15:07:57 +00:00
plugins lockable: add QemuRecMutex support 2020-03-17 15:18:45 +01:00
po ui/gtk: fix gettext message's charset. 2019-11-21 09:42:30 +01:00
python/qemu python/qemu: Kill QEMU process if 'quit' doesn't work 2020-03-21 22:37:32 +00:00
qapi Add rx-softmmu 2020-03-19 17:58:05 +01:00
qga qemu-ga: document vsock-listen in the man page 2020-03-24 11:32:19 -05:00
qobject qstring: add qstring_free() 2020-01-24 20:59:13 +01:00
qom qom/object: enable setter for uint types 2020-03-16 23:02:23 +01:00
replay replay: record and replay random number sources 2020-01-07 12:08:39 +01:00
roms ppc patch queue 2020-03-17 2020-03-18 15:07:57 +00:00
scripts update syscall numbers to linux 5.5 (with scripts) 2020-03-20 16:00:21 +00:00
scsi scsi/qemu-pr-helper: Fix out-of-bounds access to trnptid_list[] 2020-03-16 22:07:24 +01:00
slirp@55ab21c9a3 slirp: update submodule to v4.2.0+ 2020-03-22 18:04:14 +01:00
softmmu machine: Add SMP Sockets in CpuTopology 2020-03-17 19:48:10 -04:00
storage-daemon qemu-storage-daemon: Add --monitor option 2020-03-06 17:21:28 +01:00
stubs hmp: Fail gracefully if chardev is already in use 2020-03-06 17:21:28 +01:00
target hw/ppc: Take QEMU lock when calling ppc_dcr_read/write() 2020-03-24 11:56:37 +11:00
tcg tcg/i386: Bound shift count expanding sari_vec 2020-03-17 08:41:07 -07:00
tests iotests/026: Move v3-exclusive test to new file 2020-03-24 12:05:31 +01:00
tools/virtiofsd virtiofsd: Fix xattr operations 2020-03-03 15:13:24 +00:00
trace tracing: only allow -trace to override -D if set 2020-02-25 20:20:23 +00:00
ui ui/curses: Move arrays to .heap to save 74KiB of .bss 2020-03-16 23:02:25 +01:00
util aio-posix: fix io_uring with external events 2020-03-23 11:05:44 +00:00
.cirrus.yml ci: build out-of-tree 2019-12-18 20:17:55 +00:00
.dir-locals.el
.editorconfig editorconfig: add setting for shell scripts 2019-06-12 17:53:22 +01:00
.exrc
.gdbinit
.gitignore docs: Stop building qemu-doc 2020-03-06 11:06:55 +00:00
.gitlab-ci-edk2.yml gitlab-ci.yml: Add jobs to build EDK2 firmware binaries 2020-01-21 14:15:48 +01:00
.gitlab-ci-opensbi.yml gitlab-ci.yml: Add jobs to build OpenSBI firmware binaries 2020-03-16 17:03:50 -07:00
.gitlab-ci.yml gitlab-ci.yml: Add jobs to build OpenSBI firmware binaries 2020-03-16 17:03:50 -07:00
.gitmodules hw/ppc/prep: Remove the deprecated "prep" machine and the OpenHackware BIOS 2020-02-02 14:07:57 +11:00
.gitpublish
.mailmap MAINTAINERS: Adjust maintainer's email 2020-03-17 13:51:24 +01:00
.patchew.yml
.readthedocs.yml .readthedocs.yml: specify some minimum python requirements 2020-02-07 15:15:16 +01:00
.shippable.yml .shippable: --disable-docs for cross-compile tests 2020-02-04 17:13:29 +00:00
.travis.yml Python and tests (mostly acceptance) patches 2020-03-17 2020-03-19 12:33:50 +00:00
arch_init.c Add rx-softmmu 2020-03-19 17:58:05 +01:00
balloon.c Clean up inclusion of exec/cpu-common.h 2019-08-16 13:31:52 +02:00
block.c block: bdrv_set_backing_bs: fix use-after-free 2020-03-24 11:41:46 +01:00
blockdev-nbd.c blockdev-nbd: Boxed argument type for nbd-server-add 2020-03-06 17:21:28 +01:00
blockdev.c block: Fix cross-AioContext blockdev-snapshot 2020-03-11 15:54:38 +01:00
blockjob.c job: refactor progress to separate object 2020-03-11 12:42:30 +01:00
bootdevice.c bootdevice: FW_CFG interface for LCHS values 2019-10-31 11:47:38 -04:00
Changelog
CODING_STYLE.rst docs: split the CODING_STYLE doc into distinct groups 2019-09-05 14:41:00 +01:00
configure linux-user, configure: improve syscall_nr.h dependencies checking 2020-03-23 14:50:12 +00:00
COPYING
COPYING.LIB
cpus-common.c cpu: introduce cpu_in_exclusive_context() 2019-10-28 15:12:38 +00:00
cpus.c cpus: avoid pause_all_vcpus getting stuck due to race 2020-03-16 23:02:26 +01:00
device_tree.c device_tree: Add info message when dumping dtb to file 2020-03-20 14:55:44 -07:00
disas.c plugin: add qemu_plugin_insn_disas helper 2019-10-28 15:12:38 +00:00
dma-helpers.c Avoid address_space_rw() with a constant is_write argument 2020-02-20 14:47:08 +01:00
exec-vary.c exec: Cache TARGET_PAGE_MASK for TARGET_PAGE_BITS_VARY 2019-10-28 10:35:20 +01:00
exec.c memory: Fix start offset for bitmap log_clear hook 2020-03-16 23:02:23 +01:00
gdbstub.c gdbstub: Fix single-step issue by confirming 'vContSupported+' feature to gdb 2020-03-17 17:38:52 +00:00
gitdm.config
hmp-commands-info.hx Update comments in .hx files that mention Texinfo 2020-03-12 11:14:05 +00:00
hmp-commands.hx Update comments in .hx files that mention Texinfo 2020-03-12 11:14:05 +00:00
ioport.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
iothread.c
job-qmp.c job: refactor progress to separate object 2020-03-11 12:42:30 +01:00
job.c job: refactor progress to separate object 2020-03-11 12:42:30 +01:00
Kconfig.host configure: simplify vhost condition with Kconfig 2019-12-17 19:32:48 +01:00
LICENSE tcg/LICENSE: Remove out of date claim about TCG subdirectory licensing 2019-11-11 15:11:21 +01:00
MAINTAINERS Documentation: create/move s390x documentation 2020-03-23 12:36:27 +01:00
Makefile * Bugfixes all over the place 2020-03-17 18:33:05 +00:00
Makefile.objs aspeed/smc: Add some tracing 2020-03-12 16:01:37 +00:00
Makefile.target update syscall numbers to linux 5.5 (with scripts) 2020-03-20 16:00:21 +00:00
memory_ldst.inc.c memory: Single byte swap along the I/O path 2019-09-03 08:30:39 -07:00
memory_mapping.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
memory.c memory: Simplify memory_region_init_rom_nomigrate() to ease review 2020-03-17 15:18:46 +01:00
module-common.c
os-posix.c os-posix: simplify os_find_datadir 2019-12-17 19:32:47 +01:00
os-win32.c glib: use portable g_setenv() 2019-12-17 09:05:23 +01:00
qdev-monitor.c virtio, pc: fixes, features 2020-02-27 19:15:15 +00:00
qemu-bridge-helper.c build: rename CONFIG_LIBCAP to CONFIG_LIBCAP_NG 2019-12-17 19:35:47 +01:00
qemu-edid.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-img-cmds.hx qemu-img: Add --target-is-zero to convert 2020-02-20 16:43:42 +01:00
qemu-img.c job: refactor progress to separate object 2020-03-11 12:42:30 +01:00
qemu-io-cmds.c block: Pass truncate exact=true where reasonable 2019-10-28 12:08:45 +01:00
qemu-io.c qemu-io: adds option to use aio engine 2020-01-30 20:59:42 +00:00
qemu-keymap.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-nbd.c qemu-nbd: Removed deprecated --partition option 2020-02-05 17:29:49 -06:00
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx audio: add audiodev format=f32 option documentation 2020-03-16 10:18:07 +01:00
qemu-seccomp.c
qemu-storage-daemon.c qemu-storage-daemon: Add --monitor option 2020-03-06 17:21:28 +01:00
qemu.nsi qemu.nsi: Install Sphinx documentation 2020-03-09 16:45:00 +00:00
qemu.sasl
qtest.c qtest: fix fuzzer-related 80-char limit violations 2020-03-06 10:33:26 +00:00
README.rst docs: merge HACKING.rst contents into CODING_STYLE.rst 2019-09-05 14:27:06 +01:00
replication.c
replication.h
rules.mak build-sys: Move the print-variable rule to rules.mak 2020-03-09 15:59:31 +01:00
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

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