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Stefan Hajnoczi 63011373ad Second RISC-V PR for 8.2
* Add support for the max CPU
  * Detect user choice in TCG
  * Clear CSR values at reset and sync MPSTATE with host
  * Fix the typo of inverted order of pmpaddr13 and pmpaddr14
  * Split TCG/KVM accelerators from cpu.c
  * Add extension properties for all cpus
  * Replace GDB exit calls with proper shutdown
  * Support KVM_GET_REG_LIST
  * Remove RVG warning
  * Use env_archcpu for better performance
  * Deprecate capital 'Z' CPU properties
  * Fix vfwmaccbf16.vf
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Merge tag 'pull-riscv-to-apply-20231012-1' of https://github.com/alistair23/qemu into staging

Second RISC-V PR for 8.2

 * Add support for the max CPU
 * Detect user choice in TCG
 * Clear CSR values at reset and sync MPSTATE with host
 * Fix the typo of inverted order of pmpaddr13 and pmpaddr14
 * Split TCG/KVM accelerators from cpu.c
 * Add extension properties for all cpus
 * Replace GDB exit calls with proper shutdown
 * Support KVM_GET_REG_LIST
 * Remove RVG warning
 * Use env_archcpu for better performance
 * Deprecate capital 'Z' CPU properties
 * Fix vfwmaccbf16.vf

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# gpg: Signature made Thu 12 Oct 2023 00:09:36 EDT
# gpg:                using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [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: 6AE9 02B6 A7CA 877D 6D65  9296 AF7C 9513 0C53 8013

* tag 'pull-riscv-to-apply-20231012-1' of https://github.com/alistair23/qemu: (54 commits)
  target/riscv: Fix vfwmaccbf16.vf
  target/riscv: deprecate capital 'Z' CPU properties
  target/riscv: Use env_archcpu for better performance
  target/riscv/tcg: remove RVG warning
  target/riscv/kvm: support KVM_GET_REG_LIST
  target/riscv/kvm: improve 'init_multiext_cfg' error msg
  gdbstub: replace exit calls with proper shutdown for softmmu
  hw/char: riscv_htif: replace exit calls with proper shutdown
  hw/misc/sifive_test.c: replace exit calls with proper shutdown
  softmmu: pass the main loop status to gdb "Wxx" packet
  softmmu: add means to pass an exit code when requesting a shutdown
  target/riscv/tcg-cpu.c: add extension properties for all cpus
  target/riscv: add riscv_cpu_get_name()
  target/riscv/cpu: move priv spec functions to tcg-cpu.c
  target/riscv/cpu.c: export isa_edata_arr[]
  target/riscv/tcg: move riscv_cpu_add_misa_properties() to tcg-cpu.c
  target/riscv/cpu.c: make misa_ext_cfgs[] 'const'
  target/riscv/tcg: introduce tcg_cpu_instance_init()
  target/riscv/cpu.c: export set_misa()
  target/riscv/kvm: do not use riscv_cpu_add_misa_properties()
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-10-12 10:24:44 -04:00
.github/workflows github: fix config mistake preventing repo lockdown commenting 2022-04-26 16:12:26 +01:00
.gitlab/issue_templates .gitlab/issue_templates: Move suggestions into comments 2022-12-15 15:19:24 +01:00
.gitlab-ci.d gitlab: shuffle some targets and reduce avocado noise 2023-10-11 08:46:33 +01:00
accel plugins: Set final instruction count in plugin_gen_tb_end 2023-10-11 08:46:39 +01:00
audio * util/log: re-allow switching away from stderr log file 2023-10-09 10:11:18 -04:00
authz error: Drop superfluous #include "qapi/qmp/qerror.h" 2023-02-23 13:56:14 +01:00
backends Block patches 2023-09-21 09:05:10 -04:00
block nbd/client: Accept 64-bit block status chunks 2023-10-05 11:02:08 -05:00
bsd-user accel: Introduce AccelClass::cpu_common_[un]realize 2023-10-05 08:55:34 -04:00
chardev chardev/char-pty: Avoid losing bytes when the other side just (re-)connected 2023-10-03 15:40:09 +04:00
common-user common-user/host/ppc: Implement safe-syscall.inc.S 2023-01-23 14:39:48 -10:00
configs target/loongarch: Add GDB support for loongarch32 mode 2023-08-24 11:17:56 +08:00
contrib contrib/plugins: fix coverity warning in hotblocks 2023-10-11 08:46:39 +01:00
crypto * fix from optionrom build 2023-10-03 07:43:44 -04:00
disas disas/riscv: Fix the typo of inverted order of pmpaddr13 and pmpaddr14 2023-10-12 11:53:47 +10:00
docs Second RISC-V PR for 8.2 2023-10-12 10:24:44 -04:00
dump dump: Silence compiler warning in dump code when compiling with -Wshadow 2023-10-06 13:16:51 +02:00
ebpf trace-events: Fix the name of the tracing.rst file 2023-09-08 13:08:51 +03:00
fpu fpu: Handle m68k extended precision denormals properly 2023-09-16 14:57:16 +00:00
fsdev fsdev: Use ThrottleDirection instread of bool is_write 2023-08-29 10:49:24 +02:00
gdb-xml target/loongarch: Split fcc register to fcc0-7 in gdbstub 2023-08-24 11:17:59 +08:00
gdbstub gdbstub: replace exit calls with proper shutdown for softmmu 2023-10-12 12:36:37 +10:00
host/include i386: spelling fixes 2023-09-20 07:54:34 +03:00
hw hw/char: riscv_htif: replace exit calls with proper shutdown 2023-10-12 12:35:36 +10:00
include Second RISC-V PR for 8.2 2023-10-12 10:24:44 -04:00
io io: follow coroutine AioContext in qio_channel_yield() 2023-09-07 20:32:11 -05:00
libdecnumber libdecnumber/dpd/decimal64: Fix compiler warning from Clang 15 2022-11-11 09:13:52 +01:00
linux-headers linux-headers: Update to Linux v6.6-rc1 2023-09-12 11:34:56 +02:00
linux-user linux-user/syscall.c: clean up local variable shadowing in xattr syscalls 2023-10-06 13:27:48 +02:00
migration migration: Add migration_rp_wait|kick() 2023-10-11 11:17:05 +02:00
monitor accel/tcg: Replace CPUState.env_ptr with cpu_env() 2023-10-04 11:03:54 -07:00
nbd nbd/server: Add FLAG_PAYLOAD support to CMD_BLOCK_STATUS 2023-10-05 11:02:08 -05:00
net net/net: Clean up global variable shadowing 2023-10-06 13:27:43 +02:00
pc-bios seabios: update binaries to git snapshot 2023-10-10 09:39:56 +02:00
plugins plugins: Check if vCPU is realized 2023-10-11 08:46:33 +01:00
po po: add ukrainian translation 2022-07-05 10:15:49 +02:00
python tests/avocado: Fix console data loss 2023-09-20 15:06:33 +01:00
qapi migration: Display error in query-migrate irrelevant of status 2023-10-11 11:17:04 +02:00
qga qapi: qga: Clarify when out-data and err-data are populated 2023-10-11 14:30:54 +03:00
qobject docs/interop: Convert qmp-spec.txt to rST 2023-05-22 10:21:01 +02:00
qom qom/object_interfaces: Clean up global variable shadowing 2023-10-06 13:27:48 +02:00
replay meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
roms roms: use PYTHON to invoke python 2023-10-12 00:37:39 +03:00
scripts trivial patches for 2023-10-12 2023-10-12 10:24:06 -04:00
scsi io: follow coroutine AioContext in qio_channel_yield() 2023-09-07 20:32:11 -05:00
semihosting * util/log: re-allow switching away from stderr log file 2023-10-09 10:11:18 -04:00
stats meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
storage-daemon configure, meson: remove target OS symbols from config-host.mak 2023-09-07 13:32:37 +02:00
stubs gdbstub: Introduce GDBFeature structure 2023-10-11 08:46:33 +01:00
subprojects Fix compilation when UFFDIO_REGISTER is not set. 2023-10-12 00:37:39 +03:00
system softmmu: pass the main loop status to gdb "Wxx" packet 2023-10-12 12:33:24 +10:00
target target/riscv: Fix vfwmaccbf16.vf 2023-10-12 12:50:13 +10:00
tcg tcg: Correct invalid mentions of 'softmmu' by 'system-mode' 2023-10-07 19:02:33 +02:00
tests avocado, risc-v: add tuxboot tests for 'max' CPU 2023-10-12 11:40:42 +10:00
tools ebpf: fix compatibility with libbpf 1.0+ 2023-03-10 17:26:47 +08:00
trace trace/control: Clean up global variable shadowing 2023-10-06 13:27:48 +02:00
ui * util/log: re-allow switching away from stderr log file 2023-10-09 10:11:18 -04:00
util * util/log: re-allow switching away from stderr log file 2023-10-09 10:11:18 -04:00
.dir-locals.el
.editorconfig .editorconfig: update the automatic mode setting for Emacs 2021-03-10 15:34:11 +00:00
.exrc
.gdbinit .gdbinit: load QEMU sub-commands when gdb starts 2017-06-07 14:38:45 +01:00
.git-blame-ignore-revs metadata: add .git-blame-ignore-revs 2023-04-04 15:56:44 +01:00
.gitattributes gitattributes: Cover Objective-C source files 2022-03-29 00:15:14 +02:00
.gitignore configure: rename --enable-pypi to --enable-download, control subprojects too 2023-06-06 16:30:01 +02:00
.gitlab-ci.yml docs: Document GitLab custom CI/CD variables 2021-07-29 07:56:01 +02:00
.gitmodules meson: subprojects: replace berkeley-{soft,test}float-3 with wraps 2023-06-06 16:30:01 +02:00
.gitpublish Add a git-publish configuration file 2018-03-05 09:03:17 +00:00
.mailmap mailmap: Fix BALATON Zoltan author email 2023-10-05 11:02:08 -05:00
.patchew.yml scripts/checkpatch: roll diff tweaking into checkpatch itself 2021-06-25 10:08:33 +01:00
.readthedocs.yml readthedocs: build with Python 3.6 2020-10-05 16:30:45 +01:00
.travis.yml travis-ci: Correct invalid mentions of 'softmmu' by 'system' 2023-10-07 19:02:33 +02:00
block.c block: Clean up local variable shadowing 2023-09-29 08:13:57 +02:00
blockdev-nbd.c qapi block: Elide redundant has_FOO in generated C 2022-12-14 20:03:25 +01:00
blockdev.c block: Mark bdrv_add/del_child() and caller GRAPH_WRLOCK 2023-09-20 17:46:01 +02:00
blockjob.c block: Mark bdrv_root_unref_child() GRAPH_WRLOCK 2023-09-20 17:46:01 +02:00
configure configure: remove gcc version suffixes 2023-10-11 08:46:33 +01:00
COPYING
COPYING.LIB COPYING.LIB: Synchronize the LGPL 2.1 with the version from gnu.org 2019-01-30 11:01:22 +01:00
cpu-common.c exec: Rename cpu.c -> cpu-target.c 2023-10-04 11:03:54 -07:00
cpu-target.c cpu: Correct invalid mentions of 'softmmu' by 'system-mode' 2023-10-07 19:02:33 +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
gitdm.config contrib/gitdm: add group map for AMD 2023-03-22 15:08:26 +00:00
hmp-commands-info.hx accel/tcg: remove CONFIG_PROFILER 2023-06-26 17:33:00 +02:00
hmp-commands.hx net: add initial support for AF_XDP network backend 2023-09-18 14:36:13 +08:00
iothread.c iothread: Set the GSource "name" field 2023-09-07 14:01:25 -04:00
job-qmp.c qapi job: Elide redundant has_FOO in generated C 2022-12-14 20:04:47 +01:00
job.c block: remove bdrv_try_set_aio_context and replace it with bdrv_try_change_aio_context 2022-10-27 20:14:11 +02:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
Kconfig.host vfio-user: build library 2022-06-15 16:42:33 +01:00
LICENSE tcg/LICENSE: Remove out of date claim about TCG subdirectory licensing 2019-11-11 15:11:21 +01:00
MAINTAINERS trivial patches for 2023-10-12 2023-10-12 10:24:06 -04:00
Makefile configure, meson: remove target OS symbols from config-host.mak 2023-09-07 13:32:37 +02:00
memory_ldst.c.inc exec/memory_ldst: Use correct type sizes 2021-05-26 08:35:51 -07:00
meson_options.txt build: Remove --enable-gprof 2023-10-04 11:03:54 -07:00
meson.build gdbstub: Introduce GDBFeature structure 2023-10-11 08:46:33 +01:00
module-common.c all: Clean up includes 2016-02-04 17:41:30 +00:00
os-posix.c os-posix: Clean up global variable shadowing 2023-10-06 13:27:48 +02:00
os-win32.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
page-vary-common.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
page-vary-target.c exec: Rename target specific page-vary.c -> page-vary-target.c 2023-10-04 11:03:54 -07:00
pythondeps.toml Revert "tests: Use separate virtual environment for avocado" 2023-08-28 09:55:48 +02:00
qemu-bridge-helper.c qemu-bridge-helper: relocate path to default ACL 2020-09-30 19:11:36 +02:00
qemu-edid.c qemu-edid: Restrict input parameter -d to avoid division by zero 2022-10-12 13:38:15 +02:00
qemu-img-cmds.hx qemu-img: Unify [-b [-F]] documentation 2022-02-01 13:49:15 +01:00
qemu-img.c qemu-img: Clean up global variable shadowing 2023-10-06 13:27:48 +02:00
qemu-io-cmds.c qemu-iotests: test zone append operation 2023-05-15 08:18:10 -04:00
qemu-io.c qemu-io: Clean up global variable shadowing 2023-10-06 13:27:48 +02:00
qemu-keymap.c qemu-keymap: properly check return from xkb_keymap_mod_get_index 2023-07-03 12:51:21 +01:00
qemu-nbd.c nbd/server: Add FLAG_PAYLOAD support to CMD_BLOCK_STATUS 2023-10-05 11:02:08 -05:00
qemu-options.hx audio: extend -audio to allow creating a default backend 2023-10-08 21:08:27 +02:00
qemu.nsi nsis installer: Fix mouse-over descriptions for emulators 2022-03-18 10:55:15 +00:00
qemu.sasl sasl: remove comment about obsolete kerberos versions 2021-06-14 13:28:50 +01:00
README.rst README.rst: fix link formatting 2022-08-04 13:44:21 +02:00
replication.c replication: move include out of root directory 2021-05-26 14:49:46 +02:00
trace-events trace-events: remove the remaining vcpu trace events 2023-06-01 11:05:05 -04:00
VERSION Open 8.2 development tree 2023-08-22 07:14:07 -07:00
version.rc configure: remove CONFIG_FILEVERSION and CONFIG_PRODUCTVERSION 2021-01-02 21:03:37 +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.


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>`_