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Viktor Mihajlovski e8c7ef288a s390: Do not pass inofficial IPL type to the guest
IPL over a virtio-scsi device requires special handling not
available in the real architecture. For this purpose the IPL
type 0xFF has been chosen as means of communication between
QEMU and the pc-bios. However, a guest OS could be confused
by seeing an unknown IPL type.

This change sets the IPL parameter type to 0x02 (CCW) to prevent
this. Pre-existing Linux has looked up the IPL parameters only in
the case of FCP IPL. This means that the behavior should stay
the same even if Linux checks for the IPL type unconditionally.

Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Message-Id: <1522940844-12336-4-git-send-email-mihajlov@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-04-09 13:50:31 +02:00
accel tcg: Fix out-of-line generic vector compares 2018-04-06 23:08:50 +10:00
audio
backends
block block/rbd: remove processed options from qdict 2018-04-04 12:05:13 -04:00
bsd-user
capstone@22ead3e0bf
chardev chardev/char-fe: Allow NULL chardev in qemu_chr_fe_init() 2018-03-26 14:37:15 +02:00
contrib libvhost-user: Claim support for postcopy 2018-03-20 16:40:37 +02:00
crypto
default-configs
disas RISC-V: Fix incorrect disassembly for addiw 2018-03-28 11:12:02 -07:00
docs virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
dtc@e54388015a
fpu
fsdev
gdb-xml
hw s390: Ensure IPL from SCSI works as expected 2018-04-09 13:50:31 +02:00
include gdbstub: send a termination packet instead of crashing gdb 2018-03-27 21:16:27 +01:00
io error: Remove NULL checks on error_propagate() calls 2018-03-27 10:17:32 -05:00
libdecnumber
linux-headers
linux-user -----BEGIN PGP SIGNATURE----- 2018-04-04 09:36:14 +01:00
migration migration: Don't activate block devices if using -S 2018-03-29 14:53:16 +01:00
nbd nbd: trace meta context negotiation 2018-04-02 09:10:49 -05:00
net net/vde: print error on vde_open() failure 2018-03-26 14:52:43 +08:00
pc-bios s390: Do not pass inofficial IPL type to the guest 2018-04-09 13:50:31 +02:00
po
qapi vdi: Change 'static' create option to 'preallocation' in QMP 2018-03-26 12:16:12 +02:00
qga
qobject
qom Machine and x86 queue, 2018-03-19 2018-03-20 12:56:20 +00:00
replay
roms Update seabios-hppa 2018-04-06 23:14:51 +10:00
scripts qapi: restrict allow-oob value to be "true" 2018-03-27 10:17:45 -05:00
scsi qemu-pr-helper: Actually allow users to specify pidfile 2018-03-26 14:37:15 +02:00
slirp
stubs virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
target s390x/kvm: call cpu_synchronize_state() on every kvm_arch_handle_exit() 2018-04-09 13:50:31 +02:00
tcg tcg: Mark muluh_i64 and mulsh_i64 as 64-bit ops 2018-03-28 12:45:16 +08:00
tests docker: fedora: test more components 2018-04-09 15:13:02 +08:00
trace
ui
util coroutine: avoid co_queue_wakeup recursion 2018-03-27 13:05:28 +01:00
.dir-locals.el
.editorconfig
.exrc
.gdbinit
.gitignore
.gitmodules gitmodules: Use the QEMU mirror of qemu-palcode 2018-03-22 19:24:16 +00:00
.gitpublish
.mailmap
.shippable.yml
.travis.yml
arch_init.c
balloon.c
block.c
blockdev-nbd.c
blockdev.c
blockjob.c blockjob: use qapi enum helpers 2018-04-03 09:56:55 -04:00
bootdevice.c
bt-host.c
bt-vhci.c
Changelog
CODING_STYLE
configure tcg: fix 16-byte vector operations detection 2018-04-04 16:23:57 +01:00
COPYING
COPYING.LIB
COPYING.PYTHON
cpus-common.c
cpus.c
device_tree.c
device-hotplug.c
disas.c
dma-helpers.c
dump.c dump.c: allow fd_write_vmcore to return errno on failure 2018-03-21 14:55:49 +01:00
exec.c exec: fix memory leak in find_max_supported_pagesize() 2018-04-02 23:05:15 -03:00
gdbstub.c gdbstub: send a termination packet instead of crashing gdb 2018-03-27 21:16:27 +01:00
HACKING
hmp-commands-info.hx
hmp-commands.hx
hmp.c hmp.c: Revert hmp_info_cpus output format change 2018-03-27 10:17:48 -05:00
hmp.h
ioport.c
iothread.c iothread: fix breakage on windows 2018-03-26 14:37:15 +02:00
LICENSE
MAINTAINERS MAINTAINERS: add include/block/aio-wait.h 2018-03-27 13:05:48 +01:00
Makefile virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
Makefile.objs
Makefile.target make: switch from -I to -iquote 2018-03-23 18:38:55 +03:00
memory_ldst.inc.c
memory_mapping.c
memory.c
module-common.c
monitor.c monitor: new parameter "x-oob" 2018-03-27 10:17:45 -05:00
numa.c
os-posix.c
os-win32.c
qdev-monitor.c
qdict-test-data.txt
qemu-bridge-helper.c
qemu-doc.texi docs: update information for TLS certificate management 2018-04-06 11:28:28 +01:00
qemu-ga.texi
qemu-img-cmds.hx
qemu-img.c
qemu-img.texi
qemu-io-cmds.c
qemu-io.c
qemu-keymap.c
qemu-nbd.c
qemu-nbd.texi
qemu-option-trace.texi
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx docs: Document -object tls-creds-x509 priority=xxx 2018-04-06 11:28:30 +01:00
qemu-seccomp.c
qemu-tech.texi
qemu.nsi
qemu.sasl
qmp.c virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
qtest.c
README
replication.c
replication.h block/replication: Remove protocol_name field 2018-03-26 12:16:00 +02:00
rules.mak make: switch from -I to -iquote 2018-03-23 18:38:55 +03:00
thunk.c
tpm.c
trace-events virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
VERSION Update version for v2.12.0-rc2 release 2018-04-04 20:37:20 +01:00
version.rc
vl.c gdbstub: send a termination packet instead of crashing gdb 2018-03-27 21:16:27 +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, 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