You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Michael Roth 920019e0e0 Update version for release 2 months ago
accel cputlb: Remove tlb_c.pending_flushes 1 year ago
audio pulseaudio: process audio data in smaller chunks 1 year ago
backends hostmem: no need to check for host_memory_backend_mr_inited() in alloc() 1 year ago
block block: Fix hangs in synchronous APIs with iothreads 4 months ago
bsd-user bsd-user: Use the IEC binary prefix definitions 1 year ago
capstone @ 22ead3e0bf disas: Add capstone as submodule 2 years ago
chardev chardev: Indent list of chardevs 1 year ago
contrib contrib: add elf2dmp tool 1 year ago
crypto io: return 0 for EOF in TLS session read after shutdown 1 year ago
default-configs hw/ppc/spapr_rng: Introduce CONFIG_SPAPR_RNG switch for spapr_rng.c 1 year ago
disas target/mips: Add disassembler support for nanoMIPS 1 year ago
docs qcow2: Document some maximum size constraints 1 year ago
dtc @ 88f18909db Update dtc/libfdt submodule to v1.4.7 1 year ago
fpu qemu/compiler: Wrap __attribute__((flatten)) in a macro 1 year ago
fsdev fsdev: Clean up error reporting in qemu_fsdev_add() 1 year ago
gdb-xml s390x/gdb: add gs registers 2 years ago
hw pvrdma: Fix compilation error 2 months ago
include hw: Use PFLASH_CFI0{1,2} and TYPE_PFLASH_CFI0{1,2} 4 months ago
io io: return 0 for EOF in TLS session read after shutdown 1 year ago
libdecnumber build: remove CONFIG_LIBDECNUMBER 2 years ago
linux-headers linux-headers: update to 4.20-rc1 1 year ago
linux-user linux-user: make pwrite64/pread64(fd, NULL, 0, offset) return 0 8 months ago
migration vmstate: constify VMStateField 1 year ago
nbd nbd/server: Advertise all contexts in response to bare LIST 1 year ago
net do not call vhost_net_cleanup() on running net from char user event 5 months ago
pc-bios update seabios to 1.12 1 year ago
po po/Makefile: Modern shell scripting (use $() instead of ``) 1 year ago
qapi qapi: add query-display-options command 1 year ago
qga qga: update docs with systemd suspend support info 8 months ago
qobject json: Fix % handling when not interpolating 8 months ago
qom Error reporting patches for 2018-10-22 1 year ago
replay replay: Exit on errors reading from replay log 1 year ago
roms update seabios to 1.12 1 year ago
scripts checkpatch: g_test_message does not need a trailing newline 1 year ago
scsi scsi: Address spurious clang warning 1 year ago
slirp slrip: ip_reass: Fix use after free 2 months ago
stubs Error reporting patches for 2018-10-22 1 year ago
target target/m68k: Fix a tcg_temp leak 4 months ago
tcg tcg/tcg-op.h: Add multiple include guard 1 year ago
tests block: Fix hangs in synchronous APIs with iothreads 4 months ago
trace tracing: Use double-dash spelling for trace option 1 year ago
ui ui: Allow specifying 'rendernode' display option for egl-headless 1 year ago
util cutils: Fix size_to_str() on 32-bit platforms 5 months ago
.dir-locals.el Add .dir-locals.el file to configure emacs coding style 4 years ago
.editorconfig editorconfig: set emacs mode 1 year ago
.exrc qemu: add .exrc 7 years ago
.gdbinit .gdbinit: load QEMU sub-commands when gdb starts 2 years ago
.gitignore edid: Ignore built binary 1 year ago
.gitmodules gitmodules: use 'https://' instead of 'git://' 1 year ago
.gitpublish Add a git-publish configuration file 1 year ago
.mailmap mailmap: Add an item for Yongbok Kim 1 year ago
.shippable.yml shippable: Remove Debian 8 libfdt kludge 1 year ago
.travis.yml .travis.yml: split MacOSX builds and reduce target list 1 year ago
CODING_STYLE CODING_STYLE: Define our preferred form for multiline comments 1 year ago
COPYING COPYING: update from FSF 11 years ago
COPYING.LIB Update FSF address in GPL/LGPL boilerplate 11 years ago
Changelog Use HTTPS for and other domains 2 years ago
HACKING HACKING: document preference for g_new instead of g_malloc 1 year ago
LICENSE vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio 5 years ago
MAINTAINERS MAINTAINERS: Add an entry for the Firmware Configuration (fw_cfg) device 1 year ago
Makefile Makefile: Install new vgabios binaries 1 year ago
Makefile.objs contrib: add elf2dmp tool 1 year ago dump: add Windows dump format to dump-guest-memory 1 year ago
README README: use 'https://' instead of 'git://' 1 year ago
VERSION Update version for release 2 months ago
arch_init.c arch_init: sort architectures 1 year ago
balloon.c balloon: Allow multiple inhibit users 1 year ago
block.c block: Fix hangs in synchronous APIs with iothreads 4 months ago
blockdev-nbd.c nbd/server: drop old-style negotiation 1 year ago
blockdev.c blockdev: Consistently use snapshot_node_name in external_snapshot_prepare() 1 year ago
blockjob.c block: Use a single global AioWait 1 year ago
bootdevice.c fw_cfg: ignore suffixes in the bootdevice list dependent on machine class 1 year ago
bt-host.c all: Clean up includes 3 years ago
bt-vhci.c all: Clean up includes 3 years ago
configure gluster: the glfs_io_cbk callback function pointer adds pre/post stat args 4 months ago
cpus-common.c qom: convert the CPU list to RCU 1 year ago
cpus.c cpus: run work items for all vCPUs if single-threaded 1 year ago
device-hotplug.c blockdev: Convert drive_new() to Error 1 year ago
device_tree.c device_tree: Fix integer overflowing in load_device_tree() 4 months ago
disas.c RISC-V Disassembler 1 year ago
dma-helpers.c block: explicitly acquire aiocontext in bottom halves that need it 2 years ago
dump.c qapi: Drop qapi_event_send_FOO()'s Error ** argument 1 year ago
exec.c exec.c: Don't reallocate IOMMUNotifiers that are in use 8 months ago
gdbstub.c gdbstub: Remove unused include 1 year ago
hmp-commands-info.hx hmp-commands-info: add sync-profile 1 year ago
hmp-commands.hx hmp-commands: add sync-profile 1 year ago
hmp.c qmp, hmp: make subsystem/system-vendor identities optional 1 year ago
hmp.h hmp-commands: add sync-profile 1 year ago
ioport.c trace: switch to modular code generation for sub-directories 2 years ago
iothread.c iothread: fix crash with invalid properties 1 year ago
job-qmp.c jobs: canonize Error object 1 year ago
job.c job: Fix off-by-one assert checks for JobSTT and JobVerbTable 1 year ago
memory.c memory: learn about non-volatile memory region 1 year ago exec: Fix MAP_RAM for cached access 1 year ago
memory_mapping.c memory-mapping: skip non-volatile memory regions in GuestPhysBlockList 1 year ago
module-common.c all: Clean up includes 3 years ago
monitor.c monitor: delay monitor iothread creation 1 year ago
numa.c numa: Clean up error reporting in parse_numa() 1 year ago
os-posix.c util: add qemu_write_pidfile() 1 year ago
os-win32.c util: add qemu_write_pidfile() 1 year ago
qdev-monitor.c qdev-monitor: Make device options help nicer 1 year ago
qdict-test-data.txt Introduce QDict test data file 10 years ago
qemu-bridge-helper.c qemu-bridge-helper: restrict interface name to IFNAMSIZ 4 months ago
qemu-deprecated.texi bt: Mark the bluetooth subsystem as deprecated 1 year ago
qemu-doc.texi doc: replace x-root with rootdir for usb-mtp 1 year ago
qemu-edid.c display/edid: add edid generator to qemu. 1 year ago
qemu-ga.texi qemu-ga: Remove stray 'q' in documentation 3 years ago
qemu-img-cmds.hx qemu-img: Add -C option for convert with copy offloading 1 year ago
qemu-img.c qemu-img: fix error reporting for -object 8 months ago
qemu-img.texi qemu-img: Add -C option for convert with copy offloading 1 year ago
qemu-io-cmds.c qemu-io-cmds: Fix two format strings 1 year ago
qemu-io.c qom: Clean up error reporting in user_creatable_add_opts_foreach() 1 year ago
qemu-keymap.c ui: use enum to string helpers 1 year ago
qemu-nbd.c qom: Clean up error reporting in user_creatable_add_opts_foreach() 1 year ago
qemu-nbd.texi nbd: Add qemu-nbd -D for human-readable description 3 years ago
qemu-option-trace.texi qemu-option-trace: -trace enable= is a pattern, not a file 1 year ago
qemu-options-wrapper.h qemu-img: remove references to GEN_DOCS 1 year ago
qemu-options.h Clean up ill-advised or unusual header guards 3 years ago
qemu-options.hx hostmem-memfd: honour share=on/off property 1 year ago
qemu-seccomp.c seccomp: don't kill process for resource control syscalls 4 months ago
qemu-tech.texi cli qmp: Mark --preconfig, exit-preconfig experimental 1 year ago
qemu.nsi Use HTTPS for and other domains 2 years ago
qemu.sasl Default to GSSAPI (Kerberos) instead of DIGEST-MD5 for SASL 2 years ago
qmp.c cli qmp: Mark --preconfig, exit-preconfig experimental 1 year ago
qtest.c qtest: Use cpu address space instead of system memory 1 year ago
replication.c replication: Introduce new APIs to do replication operation 3 years ago
replication.h block/replication: Remove protocol_name field 1 year ago
rules.mak tests/docker/Makefile.include: handle empty TARGET_LIST 1 year ago
thunk.c thunk: assert nb_fields is valid 2 years ago
tpm.c tpm: Clean up error reporting in tpm_init_tpmdev() 1 year ago
trace-events jobs: remove ret argument to job_completed; privatize it 1 year ago
version.rc Use HTTPS for and other domains 2 years ago
vl.c vl.c: remove outdated comment 1 year ago
win_dump.c dump: fix Windows dump memory run mapping 1 year ago
win_dump.h dump: move Windows dump structures definitions 1 year ago


         QEMU README

QEMU is a generic and open source machine & userspace emulator and

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.


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:

mkdir build
cd build

Additional information can also be found online via the QEMU website:

Submitting patches

The QEMU source code is maintained under the GIT version control system.

git clone

When submitting patches, one common approach is to use 'git
format-patch' and/or 'git send-email' to format & send the mail to the mailing list. All patches submitted must contain
a 'Signed-off-by' line from the author. Patches should follow the
guidelines set out in the HACKING and CODING_STYLE files.

Additional information on submitting patches can be found online via
the QEMU website

The QEMU website is also maintained under source control.

git clone

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

The workflow with 'git-publish' is:

$ 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:

$ 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:

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:


The QEMU community can be contacted in a number of ways, with the two
main methods being email and IRC

- #qemu on

Information on additional methods of contacting the community can be
found online via the QEMU website:

-- End