Go to file
Max Reitz 572b07bea1 qcow2: Always execute preallocate() in a coroutine
Some qcow2 functions (at least perform_cow()) expect s->lock to be
taken.  Therefore, if we want to make use of them, we should execute
preallocate() (as "preallocate_co") in a coroutine so that we can use
the qemu_co_mutex_* functions.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20171009215533.12530-3-mreitz@redhat.com
Cc: qemu-stable@nongnu.org
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-10-26 15:01:14 +02:00
accel translate-all: exit from tb_phys_invalidate if qht_remove fails 2017-10-24 13:53:42 -07:00
audio buildsys: Move audio libs to per object 2017-09-22 10:20:34 +08:00
backends tpm: move recv_data_callback to TPM interface 2017-10-19 11:42:33 -04:00
block qcow2: Always execute preallocate() in a coroutine 2017-10-26 15:01:14 +02:00
bsd-user tcg: introduce regions to split code_gen_buffer 2017-10-24 13:53:42 -07:00
chardev char: don't skip client cleanup if 'connected' flag is unset 2017-10-12 12:10:37 +02:00
contrib libvhost-user: Support VHOST_USER_SET_SLAVE_REQ_FD 2017-10-12 16:57:50 +02:00
crypto block: convert qcrypto_block_encrypt|decrypt to take bytes offset 2017-10-06 16:30:47 +02:00
default-configs openrisc/ompic: Add OpenRISC Multicore PIC (OMPIC) 2017-10-21 06:35:47 +09:00
disas disas/i386: Add disassembly of rorx 2017-09-06 07:19:00 -07:00
docs * TCG 8-byte atomic accesses bugfix (Andrew) 2017-10-19 15:38:07 +01:00
dtc@558cd81bdd
fpu
fsdev fsdev: fix memory leak in main() 2017-09-05 14:01:16 +02:00
gdb-xml
hw input: fixes for ui input code and ps/2 keyboard (mostly sysrq key) 2017-10-24 16:55:56 +01:00
include block: Align block status requests 2017-10-26 14:45:57 +02:00
io trivial patches for 2017-10-16 2017-10-17 13:13:03 +01:00
libdecnumber build: remove CONFIG_LIBDECNUMBER 2017-10-16 18:03:52 +02:00
linux-headers linux-headers: sync against v4.14-rc1 2017-09-29 10:58:31 +02:00
linux-user tcg: enable multiple TCG contexts in softmmu 2017-10-24 13:53:42 -07:00
migration migration: Improve migration thread error handling 2017-10-23 18:03:43 +02:00
nbd nbd: header constants indenting 2017-10-13 09:27:38 -05:00
net filter-mirror: segfault when specifying non existent device 2017-10-16 23:16:06 +03:00
pc-bios Update OpenBIOS images to 83818bd built from submodule. 2017-10-19 20:08:04 +01:00
po
qapi migration/next for 20171023 2017-10-25 15:24:08 +01:00
qga Convert single line fprintf(.../n) to warn_report() 2017-09-19 14:09:34 +02:00
qobject qlit: Tighten QLit list vs QList comparison 2017-09-04 13:09:12 +02:00
qom tcg: Add CPUState cflags_next_tb 2017-10-24 13:53:41 -07:00
replay migration: pre_save return int 2017-09-27 11:35:59 +01:00
roms Update OpenBIOS images to 83818bd built from submodule. 2017-10-19 20:08:04 +01:00
scripts scripts: don't throw away stderr when checking out git submodules 2017-10-23 08:10:18 +02:00
scsi qemu-pr-helper: use new libmultipath API 2017-10-18 10:15:09 +02:00
slirp migration: pre_save return int 2017-09-27 11:35:59 +01:00
stubs qmp: introduce query-memory-size-summary command 2017-09-14 15:52:10 +01:00
target tcg: Initialize cpu_env generically 2017-10-24 13:53:42 -07:00
tcg tcg: Initialize cpu_env generically 2017-10-24 13:53:42 -07:00
tests iotests: Filter actual image size in 184 and 191 2017-10-26 15:01:13 +02:00
trace Convert single line fprintf(.../n) to warn_report() 2017-09-19 14:09:34 +02:00
ui ui: pull in latest keycodemapdb 2017-10-23 10:50:02 +02:00
util osdep: introduce qemu_mprotect_rwx/none 2017-10-24 13:53:42 -07:00
.dir-locals.el
.editorconfig add editorconfig 2017-07-20 09:56:56 +02:00
.exrc
.gdbinit
.gitignore ui: add qemu-keymap and shader to .gitignore 2017-10-23 08:10:18 +02:00
.gitmodules ui: add keycodemapdb repository as a GIT submodule 2017-10-16 14:50:54 +02:00
.mailmap
.shippable.yml shippable: add win32/64 targets 2017-07-18 10:58:36 +01:00
.travis.yml travis: move make -j flag out of script 2017-07-18 09:39:19 +01:00
arch_init.c
balloon.c
block.c block: don't add 'driver' to options when referring to backing via node name 2017-10-26 14:45:57 +02:00
blockdev-nbd.c
blockdev.c block: move ThrottleGroup membership to ThrottleGroupMember 2017-09-05 16:47:51 +02:00
blockjob.c qapi: Mechanically convert FOO_lookup[...] to FOO_str(...) 2017-09-04 13:09:13 +02:00
bootdevice.c
bt-host.c
bt-vhci.c
Changelog
CODING_STYLE coding_style: add point about 0x in trace-events 2017-08-01 12:13:07 +01:00
configure configure: disable qemu-keymap for linux-user qemu 2017-10-23 08:10:18 +02:00
COPYING
COPYING.LIB
COPYING.PYTHON scripts: add argparse module for Python 2.6 compatibility 2017-08-30 12:02:11 +01:00
cpus-common.c
cpus.c tcg: enable multiple TCG contexts in softmmu 2017-10-24 13:53:42 -07:00
device_tree.c
device-hotplug.c
disas.c disas: Always initialize read_memory_inner_func properly 2017-10-12 12:10:38 +02:00
dma-helpers.c
dump.c kdump: set vmcoreinfo location 2017-10-15 05:54:40 +03:00
exec.c tcg: Add CPUState cflags_next_tb 2017-10-24 13:53:41 -07:00
gdbstub.c Use qemu_tolower() and qemu_toupper(), not tolower() and toupper() 2017-07-21 10:32:41 +01:00
HACKING
hmp-commands-info.hx hmp-commands-info: Change "@findex FOO" to "@findex info FOO" 2017-10-05 10:08:39 +01:00
hmp-commands.hx migrate: HMP migate_continue 2017-10-23 18:03:31 +02:00
hmp.c migrate: HMP migate_continue 2017-10-23 18:03:31 +02:00
hmp.h migrate: HMP migate_continue 2017-10-23 18:03:31 +02:00
ioport.c
iothread.c iothread: delay the context release to finalize 2017-10-03 14:36:19 -04:00
LICENSE
MAINTAINERS s390x/MAINTAINERS: add mailing list 2017-10-20 13:32:10 +02:00
Makefile build: Fix dtc-checkout race condition in Makefile 2017-10-19 16:48:16 +01:00
Makefile.objs build-sys: make vhost-user-scsi depend on libvhost-user.a 2017-10-10 23:31:08 +02:00
Makefile.target build: remove CONFIG_LIBDECNUMBER 2017-10-16 18:03:52 +02:00
memory_ldst.inc.c
memory_mapping.c
memory.c memory: reuse section_from_flat_range() 2017-10-18 10:15:00 +02:00
module-common.c
monitor.c hmp: Fix unknown command for subtable 2017-10-05 10:01:21 +01:00
numa.c NUMA: Replace MAX_NODES with nb_numa_nodes in for loop 2017-09-19 16:51:33 -03:00
os-posix.c os-posix: Drop misleading comment 2017-10-16 21:01:37 +03:00
os-win32.c
qapi-schema.json watchdog: Allow setting action on the fly 2017-10-02 13:09:09 +02:00
qdev-monitor.c
qdict-test-data.txt
qemu-bridge-helper.c
qemu-doc.texi qemu-doc.texi: remove trailing whitespace 2017-10-16 20:57:06 +03:00
qemu-ga.texi
qemu-img-cmds.hx qemu-img: add --shrink flag for resize 2017-09-26 15:00:32 +02:00
qemu-img.c qemu-img: Change img_compare() to be byte-based 2017-10-26 14:45:57 +02:00
qemu-img.texi qemu-img.1: Image invalidation on qemu-img commit 2017-10-26 14:59:18 +02:00
qemu-io-cmds.c qemu-io: Relax 'alloc' now that block-status doesn't assert 2017-10-26 14:45:57 +02:00
qemu-io.c qemu-io: Add -C for opening with copy-on-read 2017-10-06 16:28:58 +02:00
qemu-keymap.c tools: add qemu-keymap 2017-10-16 14:50:54 +02:00
qemu-nbd.c qapi: Change data type of the FOO_lookup generated for enum FOO 2017-09-04 13:09:13 +02:00
qemu-nbd.texi
qemu-option-trace.texi
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx tpm: Added support for TPM emulator 2017-10-13 07:34:33 -04:00
qemu-seccomp.c seccomp: add resourcecontrol argument to command line 2017-09-15 10:15:06 +02:00
qemu-tech.texi
qemu.nsi
qemu.sasl
qmp.c qmp: introduce query-memory-size-summary command 2017-09-14 15:52:10 +01:00
qtest.c qtest: Don't perform side effects inside assertion 2017-09-15 09:05:19 +02:00
README
replication.c
replication.h
rules.mak
thunk.c thunk: assert nb_fields is valid 2017-07-31 13:06:39 +03:00
tpm.c tpm: remove configure_tpm() hop 2017-10-19 11:42:24 -04:00
trace-events memory: trace FlatView creation and destruction 2017-09-22 01:06:51 +02:00
VERSION Open 2.11 development tree 2017-08-30 23:10:38 +01:00
version.rc
vl.c tpm: Move tpm_cleanup() to right place 2017-10-13 07:34:33 -04:00

         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.


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:

  mkdir build
  cd build
  ../configure
  make

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

  http://qemu-project.org/Hosts/Linux
  http://qemu-project.org/Hosts/Mac
  http://qemu-project.org/Hosts/W32


Submitting patches
==================

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

   git clone git://git.qemu-project.org/qemu.git

When submitting patches, the preferred 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 HACKING and CODING_STYLE files.

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

  http://qemu-project.org/Contribute/SubmitAPatch
  http://qemu-project.org/Contribute/TrivialPatches


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:

  http://qemu-project.org/Contribute/ReportABug


Contact
=======

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

 - qemu-devel@nongnu.org
   http://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:

  http://qemu-project.org/Contribute/StartHere

-- End