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Somehow we forgot to update this when cache=writeback became the
default. While changing the information on the default, also make the
description of all caches modes a bit more accurate.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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The options no-kvm, no-kvm-pit, no-kvm-pit-reinjection, and no-kvm-irqchip
should be marked as having no argument.
Signed-off-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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* kiszka/queues/slirp:
slirp: Add domain-search option to slirp's DHCP server
slirp: Don't crash on packets from 0.0.0.0/8.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* kwolf/for-anthony: (26 commits)
qemu-io: Use bdrv_drain_all instead of qemu_aio_flush
megasas: Use bdrv_drain_all instead of qemu_aio_flush
vmdk: Fix data corruption bug in WRITE and READ handling
fdc: remove last usage of FD_STATE_SEEK
fdc: fix typo in zero constant
fdc: remove double affectation of FD_MSR_CMDBUSY flag
fdc-tests: add tests for VERIFY command
fdc: implement VERIFY command
fdc-test: Check READ ID
fdc: fix false FD_SR0_SEEK
fdc: fix FD_SR0_SEEK for initial seek on DMA transfers
fdc: fix FD_SR0_SEEK for non-DMA transfers and multi sectors transfers
fdc: use status0 field instead of a local variable
fdc-test: add tests for non-DMA READ command
fdc-test: insert media before fuzzing registers
fdc-test: split test_media_change() test, so insert part can be reused
fdc: Remove status0 parameter from fdctrl_set_fifo()
aio: rename AIOPool to AIOCBInfo
aio: use g_slice_alloc() for AIOCB pooling
aio: switch aiocb_size type int -> size_t
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This will create a new QOM object in the '/objects' path. Note that properties
are set in order which allows for simple objects to be initialized entirely
with this option and then realized.
This option is roughly equivalent to -device but for things that are not
devices.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch will allow the user to include the domain-search option in
replies from the built-in DHCP server. The domain suffixes can be
specified by adding dnssearch= entries to the "-net user" parameter.
[Jan: tiny style adjustments]
Signed-off-by: Klaus Stengel <Klaus.Stengel@asamnet.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Releases of qemu-kvm will be interrupted at qemu 1.3.0.
Users should switch to plain qemu releases.
To avoid breaking scenarios which are setup with command line
options specific to qemu-kvm, port these switches from qemu-kvm
to qemu.git.
Port -no-kvm option.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Releases of qemu-kvm will be interrupted at qemu 1.3.0.
Users should switch to plain qemu releases.
To avoid breaking scenarios which are setup with command line
options specific to qemu-kvm, port these switches from qemu-kvm
to qemu.git.
Port -tdf option.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Releases of qemu-kvm will be interrupted at qemu 1.3.0.
Users should switch to plain qemu releases.
To avoid breaking scenarios which are setup with command line
options specific to qemu-kvm, port these switches from qemu-kvm
to qemu.git.
Port -no-kvm-pit-reinjection.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Releases of qemu-kvm will be interrupted at qemu 1.3.0.
Users should switch to plain qemu releases.
To avoid breaking scenarios which are setup with command line
options specific to qemu-kvm, port these switches from qemu-kvm
to qemu.git.
Port -no-kvm-pit option.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Releases of qemu-kvm will be interrupted at qemu 1.3.0.
Users should switch to plain qemu releases.
To avoid breaking scenarios which are setup with command line
options specific to qemu-kvm, port these switches from qemu-kvm
to qemu.git.
Port -no-kvm-irqchip option.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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This option can be used for passing file descriptors on the
command line. It mirrors the existing add-fd QMP command which
allows an fd to be passed to QEMU via SCM_RIGHTS and added to an
fd set.
This can be combined with commands such as -drive to link file
descriptors in an fd set to a drive:
qemu-kvm -add-fd fd=3,set=2,opaque="rdwr:/path/to/file"
-add-fd fd=4,set=2,opaque="rdonly:/path/to/file"
-drive file=/dev/fdset/2,index=0,media=disk
This example adds dups of fds 3 and 4, and the accompanying opaque
strings to the fd set with ID=2. qemu_open() already knows how
to handle a filename of this format. qemu_open() searches the
corresponding fd set for an fd and when it finds a match, QEMU
goes on to use a dup of that fd just like it would have used an
fd that it opened itself.
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Update the -help output and documentation so that it recommends
'help' rather than '?' for the various "list valid values for this
option" cases. '?' is deprecated (as it can fail confusingly if
not quoted), so it's better to steer users towards 'help'. ('?'
still works, for backwards compatibility.)
This is the -help option part of the change otherwise done in
commit c8057f9, since we are now past release 1.2 and free to
change our help text without worrying about breaking libvirt.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Added an option to let qemu transfer a configuration file to bios,
"etc/boot-fail-wait", which could be specified by command
-boot reboot-timeout=T
T have a max value of 0xffff, unit is ms.
With this option, guest will wait for a given time if not find
bootabled device, then reboot. If reboot-timeout is '-1', guest
will not reboot, qemu passes '-1' to bios by default.
This feature need the new seabios's support.
Seabios pulls the value from the fwcfg "file" interface, this
interface is used because SeaBIOS needs a reliable way of
obtaining a name, value size, and value. It in no way requires
that there be a real file on the user's host machine.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* stefanha/net:
net: EAGAIN handling for net/socket.c TCP
net: EAGAIN handling for net/socket.c UDP
net: asynchronous send/receive infrastructure for net/socket.c
net: broadcast hub packets if at least one port can receive
net: fix usbnet_receive() packet drops
net: clean up usbnet_receive()
net: add -netdev options to man page
net: do not report queued packets as sent
net: add receive_disabled logic to iov delivery path
eepro100: Fix network hang when rx buffers run out
xen: flush queue when getting an event
e1000: flush queue whenever can_receive can go from false to true
net: notify iothread after flushing queue
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It allows to disable memory merge support (KSM on Linux), which is
enabled by default otherwise.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Document the -netdev syntax which supercedes the older -net syntax.
This patch is a first step to making -netdev prominent in the QEMU
manual.
Reported-by: Anatoly Techtonik <techtonik@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Added all spice options to the help string. This can be used by libvirt
to determine which spice related features are supported by qemu.
Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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The seamless-migration flag is required in order to identify
whether libvirt supports the new QEVENT_SPICE_MIGRATE_COMPLETED or not
(by default the flag is off).
New libvirt versions that wait for QEVENT_SPICE_MIGRATE_COMPLETED should turn on this flag.
When this flag is off, spice fallbacks to its old migration method, which
can result in data loss.
Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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This reverts commit 39dda260628e5f2a3fd2ce2ec8a71f3d5ca309a9.
Signed-off-by: malc <av1474@comtv.ru>
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This reverts commit 482f7bf86b43af9f6903c52726fedf82b28bf953.
Signed-off-by: malc <av1474@comtv.ru>
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This reverts commit f278d4947fff814dcde2ef2acad36d172ff8be35.
Signed-off-by: malc <av1474@comtv.ru>
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This patch provides a way to optionally suppress spurious interrupts,
as a workaround for systems described below:
Some old operating systems do not handle spurious interrupts well,
and qemu tends to generate them significantly more often than
real hardware.
Examples:
- Microport UNIX System V/386 v 2.1 (ca 1987)
(The main problem I'm fixing: Without this patch, it panics
sporadically when accessing the hard disk.)
- AT&T UNIX System V/386 Release 4.0 Version 2.1a (ca 1991)
See screenshot in "QEMU Official OS Support List":
http://www.claunia.com/qemu/objectManager.php?sClass=application&iId=9
(I don't have this system to test.)
- A report about OS/2 boot lockup from 2004 by Hampa Hug:
http://lists.nongnu.org/archive/html/qemu-devel/2004-09/msg00367.html
(My patch was partially inspired by his.)
Also: http://lists.nongnu.org/archive/html/qemu-devel/2005-06/msg00243.html
(I don't have this system to test.)
Signed-off-by: Matthew Ogilvie <mmogilvi_qemu@miniinfo.net>
Signed-off-by: malc <av1474@comtv.ru>
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This patch adds some optional compatibility hacks (default
disabled) to allow Microport UNIX to function under qemu.
I've tried to structure it to be easy to add more hacks for other
old CGA programs, if anyone ever needs them.
Microport UNIX System V/386 v 2.1 (ca 1987) tries to program
the CGA registers directly with neither the assistance of BIOS, nor
with proper handling of EGA/VGA-only registers. Note that it didn't
work on real VGA hardware, either (although in that case, the most
obvious problems seemed to be out-of-range hsync and/or vsync
signalling, rather than the issues in this patch).
Eventually real MDA and/or CGA support might provide an alternative to
this patch, although a hybrid approach like this patch might still
be useful in marginal cases.
Signed-off-by: Matthew Ogilvie <mmogilvi_qemu@miniinfo.net>
Signed-off-by: malc <av1474@comtv.ru>
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The feature was added in commit cb5a7aa8c32141bb Sep 2008.
My description is based on "Better VGA retrace emulation (needed
for some DOS games/demos)" from
http://www.boblycat.org/~malc/code/patches/qemu/index.html
Signed-off-by: Matthew Ogilvie <mmogilvi_qemu@miniinfo.net>
Signed-off-by: malc <av1474@comtv.ru>
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Signed-off-by: Eduardo Otubo <otubo@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v7 -> v8
- Parse options correctly (aliguori)
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Add a new '[,dump-guest-core=on|off]' option to the '-machine' option. When
'dump-guest-core=off' is specified, guest memory is omitted from the core dump.
The default behavior continues to be to include guest memory when a core dump is
triggered. In my testing, this brought the core dump size down from 384MB to 6MB
on a 2GB guest.
Is anything additional required to preserve this setting for migration or
savevm? I don't believe so.
Changelog:
v3:
Eliminate globals as per Anthony's suggestion
set no dump from qemu_ram_remap() as well
v2:
move the option from -m to -machine, rename option dump -> dump-guest-core
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch updates the iscsi layer to automatically pick a 'unique'
initiator-name based on the name of the vm in case the user has not set
an explicit iqn-name to use.
Create a new function qemu_get_vm_name() that returns the name of the VM,
if specified.
This way we can thus create default names to use as the initiator name
based on the guest session.
If the VM is not named via the '-name' command line argument, the iscsi
initiator-name used wiull simply be
iqn.2008-11.org.linux-kvm
If a name for the VM was specified with the '-name' option, iscsi will
use a default initiatorname of
iqn.2008-11.org.linux-kvm:<name>
These names are just the default iscsi initiator name that qemu will
generate/use only when the user has not set an explicit initiator name
via the commandlines or config files.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
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FIPS 140-2 requires disabling certain ciphers, including DES, which is used
by VNC to obscure passwords when they are sent over the network. The
solution for FIPS users is to disable the use of VNC password auth when the
host system is operating in FIPS compliance mode and the user has specified
'-enable-fips' on the QEMU command line.
This patch causes QEMU to emit a message to stderr when the host system is
running in FIPS mode and a VNC password was specified on the commend line.
If the system is not running in FIPS mode, or is running in FIPS mode but
VNC password authentication was not requested, QEMU operates normally.
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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For command line options which permit '?' meaning 'please list the
permitted values', add support for 'help' as a synonym, by abstracting
the check out into a helper function.
This change means that in some cases where we were being lazy in
our string parsing, "?junk" will now be rejected as an invalid option
rather than being (undocumentedly) treated the same way as "?".
Update the documentation to use 'help' rather than '?', since '?'
is a shell metacharacter and thus prone to fail confusingly if there
is a single character filename in the current working directory and
the '?' has not been escaped. It's therefore better to steer users
towards 'help', though '?' is retained for backwards compatibility.
We do not, however, update the output of the system emulator's -help
(or any documentation autogenerated from the qemu-options.hx which
is the source of the -help text) because libvirt parses our -help
output and will break. At a later date when QEMU provides a better
interface so libvirt can avoid having to do this, we can update the
-help text too.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Hopefully they will be eliminated one day.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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The description for set_password and expire_password commands is
incomplete. This patch fixes the man page that is being generated
to match the real behaviour of these functions.
Signed-off-by: Michal Novotny <minovotn@redhat.com>
Signed-off-by: Michal Novotny <minovotn@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch improves the description of -nodefaults QEMU command line
option by adding more information what is being disabled using this
command.
Signed-off-by: Michal Novotny <minovotn@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is the patch to improve description for -{read|write}config
functions.
Signed-off-by: Michal Novotny <minovotn@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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When using guestfwd=, Qemu only connects the virtual server's TCP port
to a single chardev. This is useless in most cases, as we usually want
to have more than a single connection from the guest to the outside world.
This patch adds a new cmd: target to guestfwd= that allows for execution
of a command on every TCP connection. This leverages the same code as
the -smb parameter, just that here the command is user defined.
Reported-by: Sascha Wilde <wilde@intevation.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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* sweil/for-1.1:
qemu-doc: Use QEMU instead of qemu for product name
qemu-doc: Fix executable name in examples
qemu-doc: Add missing parameter in description of -D option
configure: Use QEMU instead of Qemu
fix some common typos
qemu-timer: Fix wrong error message
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When 'qemu' was used as a product name or as a generic process name,
it is now replaced by the official upper case 'QEMU'.
v2:
Added missing period (hint from Andreas Färber).
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
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The executable name qemu was replaced some time ago by qemu-system-i386.
Fix all examples accordingly.
Some examples will only work with qemu-system-i386 or qemu-system-x86_64
for obvious reasons ("dos.img").
To keep things simple, I did not vary the executable name.
Place holders like qemu-system-TARGET were also only used once
in the enhanced description for QEMU launches using Wine.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
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'logfile' is a place holder for a non optional parameter.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
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Changes v2 -> v3:
- Rebase against latest qemu.git
Changes v1 -> v2:
- Change 'userconfig' field/variables to bool instead of int
- Coding style change
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The official spelling is QEMU.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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git://git.linaro.org/people/pmaydell/qemu-arm
* 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm:
pl031: switch clock base to rtc_clock
pl031: rearm alarm timer upon load
arm: switch real-time clocks to rtc_clock
omap: switch omap_lpg to vm_clock
rtc: add -rtc clock=rt
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The idea behind qtest is pretty simple. Instead of executing a CPU via TCG or
KVM, rely on an external process to send events to the device model that the CPU
would normally generate.
qtest presents itself as an accelerator. In addition, a new option is added to
establish a qtest server (-qtest) that takes a character device. This is what
allows the external process to send CPU events to the device model.
qtest uses a simple line based protocol to send the events. Documentation of
that protocol is in qtest.c.
I considered reusing the monitor for this job. Adding interrupts would be a bit
difficult. In addition, logging would also be difficult.
qtest has extensive logging support. All protocol commands are logged with
time stamps using a new command line option (-qtest-log). Logging is important
since ultimately, this is a feature for debugging.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This will let people use backwards-compatible semantics for devices that
will be affected by the following patches.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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There's only TODO information in qemu man page for -global option. This is a basic description of this option with simple example.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
v4:
- break long line
v3:
- add use case description
- use prop instead of property
v2:
- Use better value in example
Patch:
--
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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If compiled with CONFIG_FDT, allow user to specify a device tree file using
the -dtb argument. If the machine supports it then the dtb will be loaded
into memory and passed to the kernel on boot.
Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
[Peter Maydell: Use machine opt rather than global to pass dtb filename]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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* qemu-kvm/uq/master:
apic: Fix legacy vmstate loading for KVM
kvm: Implement kvm_irqchip_in_kernel like kvm_enabled
kvm: Allow to set shadow MMU size
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* kraxel/vnc.2:
vnc: lift modifier keys on client disconnect.
vnc: implement shared flag handling.
vnc: fix ctrl key in vnc terminal emulation
Fix vnc memory corruption with width = 1400
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