QEMU With E2K User Support
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Kevin Wolf ae5475e82f qcow2: Fix qcow2_truncate() error return value
If qcow2_alloc_clusters_at() returns an error, we do need to negate it
to get back the positive errno code for error_setg_errno(), but we still
need to return the negative error code.

Fixes: 772d1f973f
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-29 14:20:56 +02:00
accel Pull request 2018-06-28 16:28:22 +01:00
audio audio: Convert use of atoi to qemu_strtoi 2018-06-25 14:03:30 +02:00
backends vhost-user: introduce shared vhost-user state 2018-05-24 21:14:11 +03:00
block qcow2: Fix qcow2_truncate() error return value 2018-06-29 14:20:56 +02:00
bsd-user target: Do not include "exec/exec-all.h" if it is not necessary 2018-06-01 14:15:10 +02:00
capstone@22ead3e0bf disas: Add capstone as submodule 2017-10-26 11:56:20 +02:00
chardev socket: don't free msgfds if error equals EAGAIN 2018-06-28 13:36:59 +01:00
contrib vhost-blk: turn on pre-defined RO feature bit 2018-06-01 19:20:38 +03:00
crypto crypto: use local path for local headers 2018-06-01 19:20:37 +03:00
default-configs target-arm queue: 2018-06-22 16:03:31 +01:00
disas RISC-V: Fix missing break statement in disassembler 2018-05-06 10:39:38 +12:00
docs trace: forbid floating point types 2018-06-27 11:09:29 +01:00
dtc@e54388015a Update dtc to fix compilation problem on Mac OS 10.6 2018-01-10 12:53:00 +11:00
fpu fpu/softfloat: Define floatN_silence_nan in terms of parts_silence_nan 2018-05-17 15:27:15 -07:00
fsdev use g_path_get_basename instead of basename 2018-03-06 14:01:29 +01:00
gdb-xml s390x/gdb: add gs registers 2017-07-14 12:29:49 +02:00
hw hw/block/nvme: add optional parameter num_queues for nvme device 2018-06-29 14:20:56 +02:00
include usb-storage: Add rerror/werror properties 2018-06-29 14:20:56 +02:00
io Delete AF_UNIX socket after close 2018-06-28 13:36:59 +01:00
libdecnumber build: remove CONFIG_LIBDECNUMBER 2017-10-16 18:03:52 +02:00
linux-headers linux-headers: Update to kernel mainline commit b357bf602 2018-06-22 13:28:35 +01:00
linux-user tcg: remove tb_lock 2018-06-15 08:18:48 -10:00
migration migration/next for 20180627 2018-06-28 15:31:42 +01:00
nbd nbd/server: Silence gcc false positive 2018-06-22 14:18:36 +01:00
net vhost-user: delete net client if necessary 2018-06-15 10:39:53 +08:00
pc-bios pseries: Update SLOF firmware image to qemu-slof-20180621 2018-06-22 14:19:07 +10:00
po po: add missing translations in de, fr, it, zh 2016-12-14 18:47:19 +00:00
qapi qapi/job: The next release will be 3.0 2018-06-29 14:20:56 +02:00
qga qga: use local path for local headers 2018-06-01 19:20:38 +03:00
qobject block-qdict: Pacify Coverity after commit f1b34a248e 2018-06-29 14:20:56 +02:00
qom Purge uses of banned g_assert_FOO() 2018-06-13 13:47:35 +02:00
replay replay: save vmstate of the asynchronous events 2018-03-12 17:10:38 +01:00
roms pseries: Update SLOF firmware image to qemu-slof-20180621 2018-06-22 14:19:07 +10:00
scripts trace: forbid floating point types 2018-06-27 11:09:29 +01:00
scsi qemu-pr-helper: Write pidfile more often 2018-04-09 16:36:40 +02:00
slirp slirp: reformat m_inc routine 2018-06-08 09:08:30 +03:00
stubs linux-aio: properly bubble up errors from initialization 2018-06-27 13:06:34 +01:00
target Pull request 2018-06-28 16:28:22 +01:00
tcg tcg: Reduce max TB opcode count 2018-06-15 09:39:53 -10:00
tests ahci: fix FIS I bit and PIO Setup FIS interrupt 2018-06-25 16:50:48 -04:00
trace trace: add trace_mem_build_info_no_se_be/le 2018-06-27 11:09:24 +01:00
ui sdl2: add checking for NULL 2018-06-26 13:48:49 +02:00
util linux-aio: properly bubble up errors from initialization 2018-06-27 13:06:34 +01:00
.dir-locals.el
.editorconfig add editorconfig 2017-07-20 09:56:56 +02:00
.exrc
.gdbinit .gdbinit: load QEMU sub-commands when gdb starts 2017-06-07 14:38:45 +01:00
.gitignore block: Ignore generated job QAPI files 2018-06-13 10:51:49 -04:00
.gitmodules roms/u-boot-sam460ex: Change to qemu git mirror and update 2018-04-10 10:05:38 +10:00
.gitpublish Add a git-publish configuration file 2018-03-05 09:03:17 +00:00
.mailmap maint: Add .mailmap entries for patches claiming list authorship 2018-04-09 16:36:40 +02:00
.shippable.yml shippable: Remove Debian 8 libfdt kludge 2018-05-11 14:33:40 +02:00
.travis.yml .travis.yml: add check-tcg test 2018-06-20 22:13:39 +01:00
arch_init.c arch_init: sort architectures 2018-06-01 19:20:38 +03:00
balloon.c qapi: Empty out qapi-schema.json 2018-03-02 13:45:50 -06:00
block.c block: Generalize should_update_child() rule 2018-06-18 17:04:54 +02:00
blockdev-nbd.c qapi: new qmp command nbd-server-add-bitmap 2018-06-21 09:23:59 -05:00
blockdev.c block/mirror: Add copy mode QAPI interface 2018-06-18 17:05:16 +02:00
blockjob.c block: Really pause block jobs on drain 2018-06-18 15:03:25 +02:00
bootdevice.c Makefile: Move bootdevice.o to common-obj-y 2017-07-04 14:39:27 +02:00
bt-host.c
bt-vhci.c
Changelog Use HTTPS for qemu.org and other domains 2017-11-21 13:34:13 +00:00
CODING_STYLE CODING_STYLE: Define our preferred form for multiline comments 2018-06-15 15:23:34 +01:00
configure configure: set cross_cc_FOO for host compiler 2018-06-20 20:22:34 +01:00
COPYING
COPYING.LIB
cpus-common.c *_run_on_cpu: introduce run_on_cpu_data type 2016-10-31 15:00:25 +01:00
cpus.c tcg: fix --disable-tcg build breakage 2018-06-22 18:55:24 +01:00
device_tree.c device_tree: Increase FDT_MAX_SIZE to 1 MiB 2018-04-26 11:04:38 +01:00
device-hotplug.c block: Remove deprecated -drive option addr 2018-06-15 14:49:44 +02:00
disas.c RISC-V Disassembler 2018-03-07 08:30:28 +13:00
dma-helpers.c block: explicitly acquire aiocontext in bottom halves that need it 2017-02-21 11:39:39 +00:00
dump.c dump: Fix build with newer gcc 2018-04-09 16:36:40 +02:00
exec.c postcopy: drop ram_pages parameter from postcopy_ram_incoming_init() 2018-06-27 13:28:31 +02:00
gdbstub.c gdbstub: Prevent fd leakage 2018-06-01 15:14:31 +02:00
HACKING HACKING: document preference for g_new instead of g_malloc 2018-05-20 08:32:09 +03:00
hmp-commands-info.hx hmp: Add commands for preconfig 2018-06-21 13:16:48 +01:00
hmp-commands.hx hmp: add exit_preconfig 2018-06-21 13:18:05 +01:00
hmp.c migration: Create multifd_bytes ram_counter 2018-06-27 13:28:11 +02:00
hmp.h hmp: add exit_preconfig 2018-06-21 13:18:05 +01:00
ioport.c trace: switch to modular code generation for sub-directories 2017-01-31 17:11:18 +00:00
iothread.c iothread: workaround glib bug which hangs qmp-test 2018-04-10 07:43:52 -05:00
job-qmp.c job: Add error message for failing jobs 2018-05-30 13:31:01 +02:00
job.c job: Add job_progress_increase_remaining() 2018-06-18 17:05:11 +02:00
LICENSE
MAINTAINERS MAINTAINERS: update target-mips maintainers 2018-06-27 20:10:42 +02:00
Makefile Revert commit d4e5ec877c 2018-06-22 16:33:47 +02:00
Makefile.objs hw/i2c: Add trace events 2018-06-08 13:15:33 +01:00
Makefile.target Makefile.target: add (clean-/build-)guest-tests targets 2018-06-20 20:22:34 +01:00
memory_ldst.inc.c Make address_space_translate{, _cached}() take a MemTxAttrs argument 2018-05-31 14:50:52 +01:00
memory_mapping.c Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
memory.c iommu: Add IOMMU index argument to translate method 2018-06-15 15:23:34 +01:00
module-common.c
monitor.c hmp: Allow HMP in preconfig state again 2018-06-21 13:18:11 +01:00
numa.c qmp: add set-numa-node command 2018-05-30 13:19:14 -03:00
os-posix.c qemu-options: Bail out on unsupported options instead of silently ignoring them 2018-05-09 00:13:39 +02:00
os-win32.c qemu-options: Bail out on unsupported options instead of silently ignoring them 2018-05-09 00:13:39 +02:00
qdev-monitor.c qom: introduce object_class_get_list_sorted 2018-03-12 15:21:10 +01:00
qdict-test-data.txt
qemu-bridge-helper.c
qemu-doc.texi hw/i386: Deprecate the machine types pc-0.10 and pc-0.11 2018-06-25 14:10:01 -03:00
qemu-ga.texi qemu-ga: Remove stray 'q' in documentation 2016-10-28 18:17:23 +03:00
qemu-img-cmds.hx qemu-img: Remove deprecated -s snapshot_id_or_name option 2018-06-11 16:18:45 +02:00
qemu-img.c qemu-img: Fix assert when mapping unaligned raw file 2018-06-15 14:49:44 +02:00
qemu-img.texi qemu-img: Remove deprecated -s snapshot_id_or_name option 2018-06-11 16:18:45 +02:00
qemu-io-cmds.c qemu-io: Let command functions return error code 2018-06-11 16:18:45 +02:00
qemu-io.c qemu-io: Exit with error when a command failed 2018-06-11 16:18:45 +02:00
qemu-keymap.c Drop superfluous includes of qapi-types.h and test-qapi-types.h 2018-02-09 05:05:11 +01:00
qemu-nbd.c block: Cancel job in bdrv_close_all() callers 2018-05-23 14:30:51 +02:00
qemu-nbd.texi nbd: Add qemu-nbd -D for human-readable description 2016-11-02 09:28:55 +01:00
qemu-option-trace.texi qemu-option-trace: -trace enable= is a pattern, not a file 2018-05-20 08:29:01 +03:00
qemu-options-wrapper.h qemu-img: remove references to GEN_DOCS 2018-05-20 08:35:54 +03:00
qemu-options.h
qemu-options.hx block: Remove deprecated -drive option serial 2018-06-15 14:49:44 +02:00
qemu-seccomp.c sandbox: disable -sandbox if CONFIG_SECCOMP undefined 2018-06-01 13:44:15 +02:00
qemu-tech.texi cli: add --preconfig option 2018-05-30 13:19:14 -03:00
qemu.nsi Use HTTPS for qemu.org and other domains 2017-11-21 13:34:13 +00:00
qemu.sasl Default to GSSAPI (Kerberos) instead of DIGEST-MD5 for SASL 2017-05-09 14:41:47 +01:00
qmp.c cli: add --preconfig option 2018-05-30 13:19:14 -03:00
qtest.c qtest: Don't perform side effects inside assertion 2017-09-15 09:05:19 +02:00
README README: Fix typo 'git-publish' 2018-03-08 15:45:14 +00:00
replication.c replication: Introduce new APIs to do replication operation 2016-09-13 11:00:56 +01:00
replication.h block/replication: Remove protocol_name field 2018-03-26 12:16:00 +02:00
rules.mak tests/docker/Makefile.include: handle empty TARGET_LIST 2018-06-04 14:39:18 +08:00
thunk.c thunk: assert nb_fields is valid 2017-07-31 13:06:39 +03:00
tpm.c qapi: Move qapi-schema.json to qapi/, rename generated files 2018-03-02 13:45:57 -06:00
trace-events job: Add lifecycle QMP commands 2018-05-23 14:30:51 +02:00
VERSION Open 2.13 development tree 2018-04-26 11:48:27 +01:00
version.rc Use HTTPS for qemu.org and other domains 2017-11-21 13:34:13 +00:00
vl.c hw/i386: Deprecate the machine types pc-0.10 and pc-0.11 2018-06-25 14:10:01 -03:00

         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:

  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.

   git clone git://git.qemu.org/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 HACKING and CODING_STYLE files.

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.

  git clone git://git.qemu.org/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:

  $ 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:

  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:

  https://qemu.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
   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

-- End