d038d2645a
- Code cleanups around block graph modification - Simplify drain - coroutine_fn correctness fixes, including splitting generated coroutine wrappers into co_wrapper (to be called only from non-coroutine context) and co_wrapper_mixed (both coroutine and non-coroutine context) - Introduce a block graph rwlock -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEE3D3rFZqa+V09dFb+fwmycsiPL9YFAmObOHIRHGt3b2xmQHJl ZGhhdC5jb20ACgkQfwmycsiPL9b4DQ//VAgplktr9NvX00a/hu4ZXgMyMuwPz36a 0Lfb11hxZM02hN1Re1M/ldzxrQj5ywxatmPH3bwLW/TjlPcXwOHvToF1EwkW/3Ow evmOUOxEH/o7Re8ZrEQEjEg3LdlFBrpRyRNS5qrGK4+38TKsecLYakZdOvYyPujm zpE4uGzG+ZYygyx4OtEhL7bry/iKO3ehGYO3/5IKrpjH+hj1MhYegcUCE7r4eE0G Mmo48ALsxlwStTUx9gUp9jwr5p08k3Jl+ubZnkTPcNZYoyTgX3rOycD8yPoaHoFr bMV6SKPZckueMT1aCTZ2pQl2gJ2ap+YFgJYQ4oyY8powVayZbVFtO9tGO/ZN+IWY zC88tmRMj1KGlgg1R0dUCOfzaJZkk44wZV72U6D3zKuXWBtHVz3WgnlRmD7k4K5Q MhqgqOatSBcD6XajmzMJi6W1xEcMs7yy9/V5e5AsGLKrjX0Z8r8+A6cK18/Hd+4N 9cDkhHET0TccmU2sTgmkqOYXl/VyiU622g1b7E9sjSdzKnqqZ4H0IkFf2G23gVBR 4xgUsftaBaIIRlrp1mHtR8zo7646pQZrZi3RFPx83dJYXpreUtnNNTzlURdnDDfA chvHjrjZ/sz2VKmMHK+PnFVVpxWSAUhHoRUcMV1+EmRGlm9ikuVO4WDBqaG8HHNk vZBm7LpuGGE= =Z9pn -----END PGP SIGNATURE----- Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging Block layer patches - Code cleanups around block graph modification - Simplify drain - coroutine_fn correctness fixes, including splitting generated coroutine wrappers into co_wrapper (to be called only from non-coroutine context) and co_wrapper_mixed (both coroutine and non-coroutine context) - Introduce a block graph rwlock # gpg: Signature made Thu 15 Dec 2022 15:08:34 GMT # gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6 # gpg: issuer "kwolf@redhat.com" # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full] # Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6 * tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (50 commits) block: GRAPH_RDLOCK for functions only called by co_wrappers block: use co_wrapper_mixed_bdrv_rdlock in functions taking the rdlock block-coroutine-wrapper.py: introduce annotations that take the graph rdlock Mark assert_bdrv_graph_readable/writable() GRAPH_RD/WRLOCK graph-lock: TSA annotations for lock/unlock functions block: assert that graph read and writes are performed correctly block: remove unnecessary assert_bdrv_graph_writable() block: wrlock in bdrv_replace_child_noperm block: Fix locking in external_snapshot_prepare() test-bdrv-drain: Fix incorrrect drain assumptions clang-tsa: Add macros for shared locks clang-tsa: Add TSA_ASSERT() macro Import clang-tsa.h async: Register/unregister aiocontext in graph lock list graph-lock: Implement guard macros graph-lock: Introduce a lock to protect block graph operations block: Factor out bdrv_drain_all_begin_nopoll() block/dirty-bitmap: convert coroutine-only functions to co_wrapper block: convert bdrv_create to co_wrapper block-coroutine-wrapper.py: support also basic return types ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
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.github/workflows | ||
.gitlab/issue_templates | ||
.gitlab-ci.d | ||
accel | ||
audio | ||
authz | ||
backends | ||
block | ||
bsd-user | ||
chardev | ||
common-user | ||
configs | ||
contrib | ||
crypto | ||
disas | ||
docs | ||
dtc@b6910bec11 | ||
dump | ||
ebpf | ||
fpu | ||
fsdev | ||
gdb-xml | ||
gdbstub | ||
hw | ||
include | ||
io | ||
libdecnumber | ||
linux-headers | ||
linux-user | ||
meson@3a9b285a55 | ||
migration | ||
monitor | ||
nbd | ||
net | ||
pc-bios | ||
plugins | ||
po | ||
python | ||
qapi | ||
qga | ||
qobject | ||
qom | ||
replay | ||
roms | ||
scripts | ||
scsi | ||
semihosting | ||
softmmu | ||
storage-daemon | ||
stubs | ||
subprojects | ||
target | ||
tcg | ||
tests | ||
tools | ||
trace | ||
ui | ||
util | ||
.cirrus.yml | ||
.dir-locals.el | ||
.editorconfig | ||
.exrc | ||
.gdbinit | ||
.gitattributes | ||
.gitignore | ||
.gitlab-ci.yml | ||
.gitmodules | ||
.gitpublish | ||
.mailmap | ||
.patchew.yml | ||
.readthedocs.yml | ||
.travis.yml | ||
block.c | ||
blockdev-nbd.c | ||
blockdev.c | ||
blockjob.c | ||
configure | ||
COPYING | ||
COPYING.LIB | ||
cpu.c | ||
cpus-common.c | ||
disas.c | ||
event-loop-base.c | ||
gitdm.config | ||
hmp-commands-info.hx | ||
hmp-commands.hx | ||
iothread.c | ||
job-qmp.c | ||
job.c | ||
Kconfig | ||
Kconfig.host | ||
LICENSE | ||
MAINTAINERS | ||
Makefile | ||
memory_ldst.c.inc | ||
meson_options.txt | ||
meson.build | ||
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 | ||
qemu-keymap.c | ||
qemu-nbd.c | ||
qemu-options.hx | ||
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>`_