QEMU With E2K User Support
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Marc-André Lureau d09c4a4787 chardev: fix backend events regression with mux chardev
Kirill noticied that on recent versions on QEMU he was not able to
trigger SysRq to invoke debug capabilites of Linux Kernel.  He tracked
it down to qemu_chr_be_event() ignoring CHR_EVENT_BREAK due s->be
being NULL. The bug was introduced in 2.8, commit a4afa548fc ("char:
move front end handlers in CharBackend"). Since the commit, the
qemu_chr_be_event() failed to deliver CHR_EVENT_BREAK due to
qemu_chr_fe_init() does not set s->be in case of mux.

Let's fix this by teaching mux to send an event to the frontend with
the focus.

Reported-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Fixes: a4afa548fc ("char: move front end handlers in CharBackend")
Message-Id: <20171103152824.21948-2-marcandre.lureau@redhat.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
accel cpu-exec: fix missed CPU kick during interrupt injection 2017-12-21 09:22:44 +01:00
audio buildsys: Move audio libs to per object 2017-09-22 10:20:34 +08:00
backends tpm: tpm_emulator: get and set buffer size of device 2017-12-14 23:39:15 -05:00
block block/iscsi: only report an iSCSI Failure if we don't handle it gracefully 2017-12-21 09:30:32 +01:00
bsd-user misc: remove headers implicitly included 2017-12-18 17:07:02 +03:00
capstone@22ead3e0bf disas: Add capstone as submodule 2017-10-26 11:56:20 +02:00
chardev chardev: fix backend events regression with mux chardev 2017-12-21 09:30:32 +01:00
contrib contrib: add systemd unit files 2017-12-20 22:29:26 +01:00
crypto crypto: afalg: fix a NULL pointer dereference 2017-11-08 11:05:09 +00:00
default-configs xilinx_spips: Add support for the ZynqMP Generic QSPI 2017-12-13 17:59:22 +00:00
disas nios2: remove duplicated includes (in code commented out) 2017-12-18 17:07:02 +03:00
docs docs: mark nested AioContext locking as a legacy API 2017-12-19 10:25:09 +00:00
dtc@558cd81bdd dtc: Revert unintentional submodule downgrade from commit c2cabb3422 2017-03-16 14:11:15 +00:00
fpu softfloat: define floatx80_round() 2017-06-29 20:27:39 +02:00
fsdev fsdev: fix memory leak in main() 2017-09-05 14:01:16 +02:00
gdb-xml s390x/gdb: add gs registers 2017-07-14 12:29:49 +02:00
hw i8259: move TYPE_INTERRUPT_STATS_PROVIDER upper 2017-12-21 09:30:32 +01:00
include chardev: fix backend events regression with mux chardev 2017-12-21 09:30:32 +01:00
io io: introduce a network socket listener API 2017-12-15 15:07:26 +00:00
libdecnumber build: remove CONFIG_LIBDECNUMBER 2017-10-16 18:03:52 +02:00
linux-headers linux-headers: update to 4.15-rc1 2017-12-13 17:59:23 +00:00
linux-user target/sh4: Use cmpxchg for movco when parallel_cpus 2017-12-18 23:29:31 +01:00
migration Remove empty statements 2017-12-18 17:07:02 +03:00
nbd nbd/server: CVE-2017-15118 Stack smash on large export name 2017-11-28 06:58:01 -06:00
net misc: remove headers implicitly included 2017-12-18 17:07:02 +03:00
pc-bios pc-bios/s390-ccw.img: update image 2017-12-14 17:56:54 +01:00
po
qapi blockdev: add x-blockdev-set-iothread force boolean 2017-12-19 10:25:09 +00:00
qga sockets: remove obsolete code that updated listen address 2017-12-21 09:22:44 +01:00
qobject qapi: Add qobject_is_equal() 2017-11-17 18:21:30 +01:00
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 seabios: update to 1.11 final 2017-11-14 15:36:08 +01:00
scripts checkpatch: volatile with a comment or sig_atomic_t is okay 2017-12-21 09:30:32 +01:00
scsi scsi: replace hex constants with #defines 2017-12-21 09:30:32 +01:00
slirp slirp: don't zero the whole ti_i when m == NULL 2017-11-09 18:59:22 +01:00
stubs tpm: add stubs 2017-10-25 01:05:04 -04:00
target cpu: refactor cpu_address_space_init() 2017-12-21 09:30:31 +01:00
tcg tcg/s390x: Use constant pool for prologue 2017-11-03 09:33:45 +01:00
tests tests/boot-serial-test: Add code to allow to specify our own kernel or bios 2017-12-21 09:30:28 +01:00
trace trace: Try using tracefs first 2017-12-18 14:37:36 +00:00
ui ui: generate qcode to linux mappings 2017-12-14 15:24:30 -08:00
util rcu: reduce more than 7MB heap memory by malloc_trim() 2017-12-21 09:30:32 +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 .gitignore: remove vscclient 2017-12-18 17:07:02 +03:00
.gitmodules disas: Add capstone as submodule 2017-10-26 11:56:20 +02:00
.mailmap MAINTAINERS: Update Paul Burton's email address 2017-11-06 07:36:43 -08:00
.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 audio: Rename hw/audio/audio.h to hw/audio/soundhw.h 2017-05-19 10:48:54 +02:00
balloon.c
block.c block: avoid recursive AioContext acquire in bdrv_inactivate_all() 2017-12-19 10:25:09 +00:00
blockdev-nbd.c nbd: Fix regression on resiliency to port scan 2017-06-15 11:04:05 +02:00
blockdev.c blockdev: add x-blockdev-set-iothread force boolean 2017-12-19 10:25:09 +00:00
blockjob.c blockjob: kick jobs on set-speed 2017-12-18 10:54:13 -05:00
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: add point about 0x in trace-events 2017-08-01 12:13:07 +01:00
configure rcu: reduce more than 7MB heap memory by malloc_trim() 2017-12-21 09:30:32 +01:00
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 cpu: refactor cpu_address_space_init() 2017-12-21 09:30:31 +01:00
device_tree.c device_tree: fix compiler warnings (clang 5) 2017-05-07 09:57:51 +03:00
device-hotplug.c
disas.c disas: Dump insn bytes along with capstone disassembly 2017-11-09 08:46:38 +01:00
dma-helpers.c
dump.c kdump: set vmcoreinfo location 2017-10-15 05:54:40 +03:00
exec.c exec: Don't reuse unassigned_mem_ops for io_mem_rom 2017-12-21 09:30:32 +01:00
gdbstub.c gdbstub: add tracing 2017-12-18 14:37:36 +00:00
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 hmp-commands: Remove the deprecated usb_add and usb_del 2017-12-14 10:16:52 +00:00
hmp.c hmp: Replace error_report_err 2017-10-30 18:29:45 +00:00
hmp.h migrate: HMP migate_continue 2017-10-23 18:03:31 +02:00
ioport.c
iothread.c iothread: fix iothread_stop() race condition 2017-12-19 10:25:09 +00:00
LICENSE
MAINTAINERS MAITAINERS: List Fam Zheng as reviewer for SCSI patches 2017-12-21 09:22:44 +01:00
Makefile Makefile: add more targets to the UNCHECKED_GOALS rule 2017-12-18 17:07:02 +03:00
Makefile.objs tpm: add stubs 2017-10-25 01:05:04 -04:00
Makefile.target Fix build of console and GUI executables for Windows 2017-11-23 10:46:42 +00:00
memory_ldst.inc.c
memory_mapping.c dump: fix memory_mapping_filter leak 2017-06-04 18:42:55 +03:00
memory.c memory: remove unused memory_region_set_global_locking() 2017-12-18 17:07:02 +03:00
module-common.c
monitor.c misc: remove old i386 dependency 2017-12-18 17:07:02 +03:00
numa.c numa: remove unused #include 2017-12-18 17:07:02 +03:00
os-posix.c os-posix: Drop misleading comment 2017-10-16 21:01:37 +03:00
os-win32.c shutdown: Add source information to SHUTDOWN and RESET 2017-05-23 13:28:17 +02:00
qapi-schema.json target/s390x: change CPU type name to "s390x-cpu" 2017-10-30 08:56:28 +01:00
qdev-monitor.c pci-assign: Remove 2017-11-05 14:52:10 +01:00
qdict-test-data.txt
qemu-bridge-helper.c
qemu-doc.texi Remove legacy -no-kvm-pit option 2017-12-21 09:30:32 +01:00
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 block: Add errp to bdrv_snapshot_goto() 2017-11-21 14:48:22 +01:00
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: Remove stray colons from output of --help 2017-12-20 09:04:27 +01:00
qemu-options.h
qemu-options.hx Remove legacy -no-kvm-pit option 2017-12-21 09:30:32 +01:00
qemu-seccomp.c seccomp: add resourcecontrol argument to command line 2017-09-15 10:15:06 +02:00
qemu-tech.texi
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 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 Use HTTPS for qemu.org and other domains 2017-11-21 13:34:13 +00:00
replication.c
replication.h
rules.mak docs: create interop/ subdirectory 2017-06-15 11:18:39 +02:00
thunk.c thunk: assert nb_fields is valid 2017-07-31 13:06:39 +03:00
tpm.c tpm: remove tpm_register_model() 2017-12-14 23:39:15 -05:00
trace-events gdbstub: add tracing 2017-12-18 14:37:36 +00:00
VERSION Open 2.12 development tree 2017-12-13 17:05:59 +00:00
version.rc Use HTTPS for qemu.org and other domains 2017-11-21 13:34:13 +00:00
vl.c Remove legacy -no-kvm-pit option 2017-12-21 09:30:32 +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.


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, 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

  https://qemu.org/Contribute/SubmitAPatch
  https://qemu.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:

  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