Go to file
Richard Henderson 946de55835 * SEV and SGX cleanups (Philippe, Dov)
* bugfixes for "check-block"
 * bugfix for static build
 * ObjectOptions cleanups (Thomas)
 * binutils fix for PVH (Cole)
 * HVF cleanup (Alex)
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmFmnTwUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroMdTQf+NnPH/6JGYWCm+bx+60qACgEAeLJx
 bcMoBIRjZqSat0wvXdLltHr19OtwkxfwK2Qgxl7nYwa6N09bXUuC4YByHZcd5/5t
 0cnCjp2+8Np0JIbMStSf1AarOhaACQQEEb334DQcgwBHMY80ZsR7ejlbU6jCk+nN
 7vRqHYIKsEW+bNdKnlo2N2dw4Sj9SkvYME8OIEx38+MMU/EEzXhlQ1hPvan74Ck7
 6b/XbZ9JmuEGXCUhBWF4jfWZHebBXgDgnj2tsP6Xgdk7X5KEPoBYPEC6bFC6LAyU
 vrWVrgFm7GEjwDJBUgfJTpbJGDrchIA8RRGmKwitLtUNCIH4hCBxbjvTzQ==
 =Vp1C
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* SEV and SGX cleanups (Philippe, Dov)
* bugfixes for "check-block"
* bugfix for static build
* ObjectOptions cleanups (Thomas)
* binutils fix for PVH (Cole)
* HVF cleanup (Alex)

# gpg: Signature made Wed 13 Oct 2021 01:47:56 AM PDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]

* remotes/bonzini/tags/for-upstream: (40 commits)
  ebpf: really include it only in system emulators
  target/i386/sev: Use local variable for kvm_sev_launch_measure
  target/i386/sev: Use local variable for kvm_sev_launch_start
  monitor: Tidy up find_device_state()
  Revert "hw/misc: applesmc: use host osk as default on macs"
  hw/i386/sgx: Move qmp_query_sgx() and hmp_info_sgx() to hw/i386/sgx.c
  hw/i386/sgx: Move qmp_query_sgx_capabilities() to hw/i386/sgx.c
  hw/i386/sgx: Have sgx_epc_get_section() return a boolean
  MAINTAINERS: Cover SGX documentation file with X86/KVM section
  hvf: Determine slot count from struct layout
  tests: tcg: Fix PVH test with binutils 2.36+
  qapi: Make some ObjectTypes depend on the build settings
  MAINTAINERS: Cover SEV-related files with X86/KVM section
  monitor: Reduce hmp_info_sev() declaration
  target/i386/sev: Move qmp_query_sev() & hmp_info_sev() to sev.c
  target/i386/sev: Move qmp_query_sev_launch_measure() to sev.c
  target/i386/sev: Move qmp_query_sev_capabilities() to sev.c
  target/i386/sev: Move qmp_sev_inject_launch_secret() to sev.c
  target/i386/sev: Move qmp_query_sev_attestation_report() to sev.c
  target/i386/sev: Remove stubs by using code elision
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-13 06:56:45 -07:00
.github/workflows .github: move repo lockdown to the v2 configuration 2021-10-12 08:38:10 +01:00
.gitlab/issue_templates GitLab: Add "Feature Request" issue template. 2021-06-25 10:08:37 +01:00
.gitlab-ci.d gitlab: fix passing of TEST_TARGETS env to cirrus 2021-10-12 08:37:05 +01:00
accel hvf: Determine slot count from struct layout 2021-10-13 10:47:49 +02:00
audio audio: Never send migration section 2021-08-10 10:55:57 +02:00
authz configure, meson: convert pam detection to meson 2021-06-25 10:54:10 +02:00
backends hostmem: Add hostmem-epc as a backend for SGX EPC 2021-09-30 14:50:19 +02:00
block mirror: Handle errors after READY cancel 2021-10-07 10:26:35 -07:00
bsd-user user: Remove cpu_get_pic_interrupt() stubs 2021-09-14 12:00:21 -07:00
capstone@f8b1b83301 capstone: Update to upstream "next" branch 2020-10-03 04:23:14 -05:00
chardev qapi: Convert simple union SocketAddressLegacy to flat one 2021-09-27 08:23:25 +02:00
configs target-arm queue: 2021-09-30 21:16:54 +01:00
contrib elf2dmp: Fail cleanly if PDB file specifies zero block_size 2021-09-20 09:54:32 +01:00
crypto crypto: add gnutls pbkdf provider 2021-07-14 14:15:52 +01:00
disas disas/riscv: Add Zb[abcs] instructions 2021-10-07 08:41:33 +10:00
docs meson: switch minimum meson version to 0.58.2, minimum recommended to 0.59.2 2021-10-05 13:10:29 +02:00
dtc@85e5d83984 Makefile: dtc: update, build the libfdt target 2020-06-16 14:49:05 +01:00
dump Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
ebpf ebpf: only include in system emulators 2021-09-17 16:07:52 +08:00
fpu softfloat: Remove assertion preventing silencing of NaN in default-NaN mode 2021-09-01 11:08:17 +01:00
fsdev meson: Declare have_virtfs_proxy_helper in main meson.build 2021-01-23 15:55:04 -05:00
gdb-xml target/arm: Don't put FPEXC and FPSID in org.gnu.gdb.arm.vfp XML 2021-09-30 13:42:10 +01:00
hw Revert "hw/misc: applesmc: use host osk as default on macs" 2021-10-13 10:47:50 +02:00
include hw/i386/sgx: Move qmp_query_sgx() and hmp_info_sgx() to hw/i386/sgx.c 2021-10-13 10:47:50 +02:00
io build-sys: add HAVE_IPPROTO_MPTCP 2021-09-30 15:30:25 +02:00
libdecnumber qemu/: fix some comment spelling errors 2020-09-17 20:35:43 +02:00
linux-headers linux-headers: Update 2021-07-09 11:01:06 +10:00
linux-user linux-user: Remove default for TARGET_ARCH_HAS_SIGTRAMP_PAGE 2021-10-01 12:03:48 +02:00
meson@b25d94e7c7 meson: bump submodule to 0.59.2 2021-10-05 13:10:29 +02:00
migration migration: add missing qemu_mutex_lock_iothread in migration_completion 2021-10-05 13:10:29 +02:00
monitor monitor: Rate-limit MEMORY_DEVICE_SIZE_CHANGE qapi events per device 2021-10-02 08:43:21 +02:00
nbd block/nbd: drop connection_co 2021-09-29 13:46:33 -05:00
net vhost-vdpa: remove the unncessary queue_index assignment 2021-09-04 17:34:05 -04:00
pc-bios pc-bios: Update hppa-firmware.img 2021-10-12 09:27:28 -07:00
plugins plugins/: Add missing functions to symbol list 2021-10-12 08:37:05 +01:00
po configure: move gettext detection to meson.build 2021-01-02 21:03:09 +01:00
python python, iotests: remove socket_scm_helper 2021-10-12 12:22:11 -04:00
qapi qapi: Make some ObjectTypes depend on the build settings 2021-10-13 10:47:49 +02:00
qga qapi: Add spaces after symbol declaration for consistency 2021-10-02 07:33:41 +02:00
qobject qobject: braces {} are necessary for all arms of this statement 2021-02-04 13:20:29 +01:00
qom qom: use correct field name when getting/setting alias properties 2021-07-23 18:17:17 +02:00
replay replay: notify CPU on event 2021-04-01 10:37:20 +02:00
roms pc-bios: Update hppa-firmware.img 2021-10-12 09:27:28 -07:00
scripts meson: switch minimum meson version to 0.58.2, minimum recommended to 0.59.2 2021-10-05 13:10:29 +02:00
scsi error: Use error_fatal to simplify obvious fatal errors (again) 2021-08-26 17:15:28 +02:00
semihosting linux-user: Don't include gdbstub.h in qemu.h 2021-09-13 20:35:45 +02:00
slirp@a88d9ace23 Update libslirp to v4.6.1 2021-08-03 16:07:22 +04:00
softmmu monitor: Tidy up find_device_state() 2021-10-13 10:47:50 +02:00
storage-daemon qemu-storage-daemon: Only display FUSE help when FUSE is built-in 2021-10-06 10:25:55 +02:00
stubs qapi/qdev.json: add DEVICE_UNPLUG_GUEST_ERROR QAPI event 2021-09-30 12:25:51 +10:00
subprojects/libvhost-user libvhost-user: fix -Werror=format= warnings with __u64 fields 2021-07-29 10:15:52 +02:00
target target/i386/sev: Use local variable for kvm_sev_launch_measure 2021-10-13 10:47:50 +02:00
tcg tcg/s390x: Implement TCG_TARGET_HAS_cmpsel_vec 2021-10-05 16:53:17 -07:00
tests tests: tcg: Fix PVH test with binutils 2.36+ 2021-10-13 10:47:49 +02:00
tools virtiofsd pull 2021-08-16 2021-09-19 18:53:29 +01:00
trace trace: Split guest_mem_before 2021-10-05 16:53:17 -07:00
ui ui/gtk-egl: Wait for the draw signal for dmabuf blobs 2021-09-15 08:41:59 +02:00
util util/compatfd.c: use libc signalfd wrapper instead of raw syscall 2021-10-13 10:47:49 +02:00
.cirrus.yml cirrus: delete FreeBSD and macOS jobs 2021-07-14 14:33:53 +01:00
.dir-locals.el Add .dir-locals.el file to configure emacs coding style 2015-10-08 19:46:01 +03:00
.editorconfig .editorconfig: update the automatic mode setting for Emacs 2021-03-10 15:34:11 +00:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gdbinit .gdbinit: load QEMU sub-commands when gdb starts 2017-06-07 14:38:45 +01:00
.gitattributes maint: Tell git that *.py files should use python diff hunks 2021-02-15 22:13:34 -05:00
.gitignore gitignore: Update with some filetypes 2021-07-23 17:22:15 +01:00
.gitlab-ci.yml docs: Document GitLab custom CI/CD variables 2021-07-29 07:56:01 +02:00
.gitmodules gitmodules: use GitLab repos instead of qemu.org 2021-02-09 20:53:56 +00:00
.gitpublish Add a git-publish configuration file 2018-03-05 09:03:17 +00:00
.mailmap MAINTAINERS: Name and email address change 2021-08-10 16:42:16 +01:00
.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.yml: Remove the "Release tarball" job 2021-10-12 08:37:05 +01:00
block.c block: bdrv_insert_node(): don't use bdrv_open() 2021-10-06 10:25:55 +02:00
blockdev-nbd.c block/nbd: Use qcrypto_tls_creds_check_endpoint() 2021-06-29 18:29:47 +01:00
blockdev.c job: @force parameter for job_cancel_sync() 2021-10-07 10:42:09 +02:00
blockjob.c progressmeter: protect with a mutex 2021-06-25 14:24:24 +03:00
configure configure: don't override the selected host test compiler if defined 2021-10-12 08:37:05 +01:00
COPYING COPYING: update from FSF 2008-10-12 17:54:42 +00:00
COPYING.LIB COPYING.LIB: Synchronize the LGPL 2.1 with the version from gnu.org 2019-01-30 11:01:22 +01:00
cpu.c accel/tcg: Record singlestep_enabled in tb->cflags 2021-07-21 07:47:05 -10:00
cpus-common.c overall/alpha tcg cpus|hppa: Fix Lesser GPL version number 2020-11-15 16:43:54 +01:00
disas.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
gdbstub.c linux-user: Don't include gdbstub.h in qemu.h 2021-09-13 20:35:45 +02:00
gitdm.config contrib/gitdm: add a new interns group-map for GSoC/Outreachy work 2021-07-23 17:22:16 +01:00
hmp-commands-info.hx target/i386: Add HMP and QMP interfaces for SGX 2021-09-30 15:30:24 +02:00
hmp-commands.hx hmp: Drop a bogus sentence from set_password's documentation 2021-09-27 10:57:21 +02:00
iothread.c iothread: use IOThreadParamInfo in iothread_[set|get]_param() 2021-10-07 15:29:50 +01:00
job-qmp.c progressmeter: protect with a mutex 2021-06-25 14:24:24 +03:00
job.c mirror: Do not clear .cancelled 2021-10-07 10:42:50 +02:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
Kconfig.host multi-process: Add config option for multi-process QEMU 2021-02-09 20:53:56 +00:00
LICENSE tcg/LICENSE: Remove out of date claim about TCG subdirectory licensing 2019-11-11 15:11:21 +01:00
MAINTAINERS MAINTAINERS: Cover SGX documentation file with X86/KVM section 2021-10-13 10:47:49 +02:00
Makefile Makefile: ignore long options 2021-07-29 10:15:51 +02:00
memory_ldst.c.inc exec/memory_ldst: Use correct type sizes 2021-05-26 08:35:51 -07:00
meson_options.txt meson_options.txt: Switch the default value for the vnc option to 'auto' 2021-09-30 15:30:25 +02:00
meson.build ebpf: really include it only in system emulators 2021-10-13 10:47:50 +02:00
module-common.c all: Clean up includes 2016-02-04 17:41:30 +00:00
os-posix.c remove qemu-options* from root directory 2021-05-26 14:49:46 +02:00
os-win32.c remove qemu-options* from root directory 2021-05-26 14:49:46 +02:00
page-vary-common.c exec: Build page-vary-common.c with -fno-lto 2021-03-23 19:36:47 -06:00
page-vary.c exec: Build page-vary-common.c with -fno-lto 2021-03-23 19:36:47 -06:00
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: use qemu_edid_size() 2021-05-10 11:41:02 +02:00
qemu-img-cmds.hx qemu-img: Add -F shorthand to convert 2021-09-15 18:42:38 +02:00
qemu-img.c qemu-img: Add -F shorthand to convert 2021-09-15 18:42:38 +02:00
qemu-io-cmds.c block: Acquire AioContexts during bdrv_reopen_multiple() 2021-07-09 13:19:11 +02:00
qemu-io.c error: Use error_fatal to simplify obvious fatal errors (again) 2021-08-26 17:15:28 +02:00
qemu-keymap.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-nbd.c qemu-nbd: Change default cache mode to writeback 2021-09-29 13:46:31 -05:00
qemu-options.hx qemu-options: Add missing "sockets=2, maxcpus=2" to CLI "-smp 2" 2021-10-04 09:47:26 +02:00
qemu.nsi nsis: adjust for new MinGW paths 2021-01-23 15:55:05 -05:00
qemu.sasl sasl: remove comment about obsolete kerberos versions 2021-06-14 13:28:50 +01:00
README.rst Update documentation to refer to new location for issues 2021-06-21 05:43:11 +02:00
replication.c replication: move include out of root directory 2021-05-26 14:49:46 +02:00
thunk.c linux-user: Drop unneeded includes from qemu.h 2021-09-13 20:35:45 +02:00
trace-events trace: Split guest_mem_before 2021-10-05 16:53:17 -07:00
VERSION Open 6.2 development tree 2021-08-25 10:25:12 +01:00
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://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://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://qemu.org/Contribute/SubmitAPatch>`_
* `<https://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://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://qemu.org/Contribute/StartHere>`_