"-usbdevice ccid" was not documented and -usbdevice itself was marked
as deprecated before QEMU v6.0. And searching for "-usbdevice ccid"
in the internet does not show any useful results, so likely nobody
was using the ccid device via the -usbdevice option. Remove it now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210311092829.1479051-1-thuth@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Policy "crash" calls abort() when deprecated input is received.
Bugs in integration tests may mask the error from policy "reject".
Provide a larger hammer: crash outright. Masking that seems unlikely.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210318155519.1224118-12-armbru@redhat.com>
New option -compat lets you configure what to do when deprecated
interfaces get used. This is intended for testing users of the
management interfaces. It is experimental.
-compat deprecated-input=<input-policy> configures what to do when
deprecated input is received. Input policy can be "accept" (accept
silently), or "reject" (reject the request with an error).
-compat deprecated-output=<out-policy> configures what to do when
deprecated output is sent. Output policy can be "accept" (pass on
unchanged), or "hide" (filter out the deprecated parts).
Default is "accept". Policies other than "accept" are implemented
later in this series.
For now, -compat covers only syntactic aspects of QMP, i.e. stuff
tagged with feature 'deprecated'. We may want to extend it to cover
semantic aspects, CLI, and experimental features.
Note that there is no good way for management application to detect
presence of -compat: it's not visible output of query-qmp-schema or
query-command-line-options. Tolerable, because it's meant for
testing. If running with -compat fails, skip the test.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210318155519.1224118-3-armbru@redhat.com>
This is only semantically useful for QMP.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
With the new "password-secret" option, there is no reason to use the old
inecure "password" option with -spice, so it can be deprecated.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210311114343.439820-4-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently when using SPICE the "password" option provides the password
in plain text on the command line. This is insecure as it is visible
to all processes on the host. As an alternative, the password can be
provided separately via the monitor.
This introduces a "password-secret" option which lets the password be
provided up front.
$QEMU --object secret,id=vncsec0,file=passwd.txt \
--spice port=5901,password-secret=vncsec0
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210311114343.439820-3-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently when using VNC the "password" flag turns on password based
authentication. The actual password has to be provided separately via
the monitor.
This introduces a "password-secret" option which lets the password be
provided up front.
$QEMU --object secret,id=vncsec0,file=passwd.txt \
--vnc localhost:0,password-secret=vncsec0
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210311114343.439820-2-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There are some more -usbdevice options that have never been mentioned
in the documentation. Now that we removed -usbdevice from the list
of deprecated features again, we should document them properly.
While we're at it, also sort them alphabetically.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210310173323.1422754-5-thuth@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Follow the inclusive terminology from the "Conscious Language in your
Open Source Projects" guidelines [*] and replace the word "blacklist"
appropriately.
[*] https://github.com/conscious-lang/conscious-lang-docs/blob/main/faq.md
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210303184644.1639691-5-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
An assorted set of spelling fixes in various places.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210309111510.79495-1-mjt@msgid.tls.msk.ru>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The "delay" option was introduced as a way to enable Nagle's algorithm
with ",nodelay". Since the short form for boolean options has now been
deprecated, introduce a more properly named "nodelay" option. The "delay"
option remains as an undocumented option.
"delay" and "nodelay" are mutually exclusive. Because the check is
done at consumption time, the code also rejects them if one of the
two is specified via -set.
Based-on: <20210226080526.651705-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The functionality of -writeconfig is limited and the code
does not even try to detect cases where it prints incorrect
syntax (for example if values have a quote in them, since
qemu_config_parse does not support any kind of escaping)
so remove it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The preferred syntax is to use "foo=on|off", rather than a bare
"foo" or "nofoo".
The on|off syntax has been supported since -vnc switched to use
QemuOpts in commit 4db14629c3
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210216191027.595031-7-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The preferred syntax is to use "foo=on|off", rather than a bare
"foo" or "nofoo".
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210216191027.595031-6-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The preferred syntax is to use "foo=on|off", rather than a bare
"foo" or "nofoo".
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210216191027.595031-5-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The preferred syntax is to use "foo=on|off", rather than a bare
"foo" or "nofoo".
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210216191027.595031-4-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The preferred syntax is to use "foo=on|off", rather than a bare
"foo" or "nofoo".
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210216191027.595031-3-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add documentation for '-machine memory-backend' CLI option and
how to use it.
And document that x-use-canonical-path-for-ramblock-id,
is considered to be stable to make sure it won't go away by accident.
x- was intended for unstable/iternal properties, and not supposed to
be stable option. However it's too late to rename (drop x-)
it as it would mean that users will have to mantain both
x-use-canonical-path-for-ramblock-id (for QEMU 5.0-5.2) versions
and prefix-less for later versions.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210121161504.1007247-1-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Let -object memory-backend-file work on read-only files when the
readonly=on option is given. This can be used to share the contents of a
file between multiple guests while preventing them from consuming
Copy-on-Write memory if guests dirty the pages, for example.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20210104171320.575838-3-stefanha@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Update some docs and test cases to use 'on' | 'off' as the preferred
value for bool options.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The possible choices for panic, reset and watchdog actions are inconsistent.
"-action panic=poweroff" should be renamed to "-action panic=shutdown"
on the command line. This is because "-action panic=poweroff" and
"-action watchdog=poweroff" have slightly different semantics, the first
does an unorderly exit while the second goes through qemu_cleanup(). With
this change, -no-shutdown would not have to change "-action panic=pause"
"pause", just like it does not have to change the reset action.
"-action reboot=none" should be renamed to "-action reboot=reset".
This should be self explanatory, since for example "-action panic=none"
lets the guest proceed without taking any action.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Adapt the arm semihosting support code for RISCV. This implementation
is based on the standard for RISC-V semihosting version 0.2 as
documented in
https://github.com/riscv/riscv-semihosting-spec/releases/tag/0.2
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20210107170717.2098982-6-keithp@keithp.com>
Message-Id: <20210108224256.2321-17-alex.bennee@linaro.org>
Currently there is a crackling noise with SDL2 audio playback.
Commit bcf19777df: "audio/sdlaudio: Allow audio playback with
SDL2" already mentioned the crackling noise.
Add an out.buffer-count option to give users a chance to select
sane settings for glitch free audio playback. The idea was taken
from the coreaudio backend.
The in.buffer-count option will be used with one of the next
patches.
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-id: 9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de
Message-Id: <20210110100239.27588-3-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The "XVP" (Xen VNC Proxy) extension defines a mechanism for a VNC client
to issue power control requests to trigger graceful shutdown, reboot, or
hard reset.
This option is not enabled by default, since we cannot assume that users
with VNC access implicitly have administrator access to the guest OS.
Thus is it enabled with a boolean "power-control" option e.g.
-vnc :1,power-control=on
While, QEMU can easily support shutdown and reset, there's no easy way
to wire up reboot support at this time. In theory it could be done by
issuing a shutdown, followed by a reset, but there's no convenient
wiring for such a pairing in QEMU. It also isn't possible to have the
VNC server directly talk to QEMU guest agent, since the agent chardev is
typically owned by an external mgmt app.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
[ kraxel: rebase to master ]
[ kraxel: add missing break ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Plumb the value through to alloc_code_gen_buffer. This is not
supported by any os or tcg backend, so for now enabling it will
result in an error.
Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
It has been marked as deprecated since QEMU v5.0, replaced by the
corresponding parameter of the -display option.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201210155808.233895-5-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It has been marked as deprecated since QEMU v4.2, replaced by
the -overcommit option. Time to remove it now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201210155808.233895-4-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The '-tb-size' option (replaced by '-accel tcg,tb-size') is
deprecated since 5.0 (commit fe17413247). Remove it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201202112714.1223783-1-philmd@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201210155808.233895-2-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The current default action of pausing a guest after a panic event
is received leaves the responsibility to resume guest execution to the
management layer. The reasons for this behavior are discussed here:
https://lore.kernel.org/qemu-devel/52148F88.5000509@redhat.com/
However, in instances like the case of older guests (Linux and
Windows) using a pvpanic device but missing support for the
PVPANIC_CRASHLOADED event, and Windows guests using the hv-crash
enlightenment, it is desirable to allow the guests to continue
running after sending a PVPANIC_PANICKED event. This allows such
guests to proceed to capture a crash dump and automatically reboot
without intervention of a management layer.
Add an option to avoid stopping a VM after a panic event is received,
by passing:
-action panic=none
in the command line arguments, or during runtime by using an upcoming
QMP command.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Message-Id: <1607705564-26264-3-git-send-email-alejandro.j.jimenez@oracle.com>
[Do not fix panic action in the variable, instead modify -no-shutdown. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Several command line options currently in use are meant to modify
the behavior of QEMU in response to certain guest events like:
-no-reboot, -no-shutdown, -watchdog-action.
These can be grouped into a single option of the form:
-action event=action
Which can be used to specify the existing options above in the
following format:
-action reboot=none|shutdown
-action shutdown=poweroff|pause
-action watchdog=reset|shutdown|poweroff|pause|debug|none|inject-nmi
This is done in preparation for adding yet another option of this
type, which modifies the QEMU behavior when a guest panic occurs.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Message-Id: <1607705564-26264-2-git-send-email-alejandro.j.jimenez@oracle.com>
[Use QemuOpts help support, invoke QMP command. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The documentation for the icount documentation has some minor issues:
* in a couple of places it says "sleep=on|off" when in the context of the
sentence it means specifically "sleep=on"
* the synopsis line for the documentation has drifted out of sync
with the synopsis line in the DEF() macro (used for "-help" output)
* the synopsis line in the DEF() macro is missing a "][" between
the sleep= part and the rr= part
* the synopsis line doesn't indicate that rrsnapshot is an optional
part of the rr=mode,rrfile=filename subgrouping
* we don't document that sleep=on can't be used with shift=auto
or align=on
* the rr option description had some minor grammar and formatting
errors and was a bit terse
* in commit f1f4b57e88 in 2015 the documentation of the sleep=
suboption got added between the two paragraphs defining general
behaviour of the icount option. This meant that the second
paragraph talking about the behaviour of "this option" reads as
if it's talking about sleep=on, when it's really describing -icount
as a whole. The paragraph is better moved back up to above the
sleep= section.
* the summary text displayed in "-help" output didn't mention
the record-and-replay part
Fix these errors.
Fixes: https://bugs.launchpad.net/qemu/+bug/1774412
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201121213506.15599-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The man page does not contain all the chapters from the System Emulation
Users Guide, so some of the links that we've put into the qemu options
descriptions can not be resolved and thus the link names are used in the
man pages instead. These link names currently contain weird "_005f" letters
in the middle and just do not make any sense for the users. To avoid this
situation, replace the link names with more descriptive, natural text.
Message-Id: <20201116145341.91606-1-thuth@redhat.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3
Buglink: https://bugs.launchpad.net/qemu/+bug/1453608
Signed-off-by: Thomas Huth <thuth@redhat.com>
The option has never been mentioned in our documentation, it's been
deprecated since years, it's marked with QEMU_ARCH_I386 (which does
not make sense anymore since KVM is available on other architectures,
too), it does not do anything by default in upstream QEMU (since TCG
is the default here anyway), and we're spending too much precious time
each year discussing whether it makes sense to keep this option as a
nice suger or not... let's finally put an end on this and remove it.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201020160504.62460-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When we added io_uring AIO engine, we forgot to update qemu-options.hx,
so qemu(1) man page and qemu help were outdated.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Message-Id: <20200924151511.131471-1-sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200923133804.2089190-4-berrange@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
According to
<https://docutils.sourceforge.io/docs/ref/rst/directives.html#parsed-literal>,
"inline markup is recognized and there is no protection from parsing.
Backslash-escapes may be necessary to prevent unintended parsing".
The qemu(1) manual page (formatted with Sphinx 2.2.2) has several overlong
lines on my system. A stand-alone backslash at EOL serves as line
continuation in a "parsed-literal" block. Therefore, escape the
backslashes that we want to appear as such in the formatted documentation.
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200908172111.19072-1-lersek@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch fixes the netdev document description typo in qemu-option.hx.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20200727045925.29375-1-tianjia.zhang@linux.alibaba.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Common VM users sometimes care about CPU speed, so we add two new
options to allow VM vendors to present CPU speed to their users.
Normally these information can be fetched from host smbios.
Strictly speaking, the "max speed" and "current speed" in type 4
are not really for the max speed and current speed of processor, for
"max speed" identifies a capability of the system, and "current speed"
identifies the processor's speed at boot (see smbios spec), but some
applications do not tell the differences.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Ying Fang <fangying1@huawei.com>
Signed-off-by: Heyi Guo <guoheyi@huawei.com>
Message-Id: <20200806035634.376-2-fangying1@huawei.com>
The line was too long, and some of the entries were wrong (fur instead
of fru). Just use the prop=val thing tha other entries use.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
This patch allow users to set the "max_queue_size" according
to their environment.
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This is followup patch to the one submitted back in Oct, 19
https://lists.gnu.org/archive/html/qemu-devel/2019-10/msg02102.html
My mistake here, I took my eyes of the mailing list after I got the
initial thumbs up. This patch follows up on Markus comments in the
above link.
Purpose of this patch:
We want to print guest name for errors, warnings and info messages. This
was the first of two patches the second being MCE errors targeting a VM
with guest name prepended. But in a large fleet we see many other
errors that disable a VM or crash it. In a large fleet and centralized
logging having the guest name enables identify of owner and customer.
Signed-off-by: Mario Smarduch <msmarduch@digitalocean.com>
Message-Id: <20200626201900.8876-1-msmarduch@digitalocean.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- add the tls-cipher-suites object,
- add the ability to QOM objects to produce data consumable
by the fw_cfg device,
- let the tls-cipher-suites object implement the
FW_CFG_DATA_GENERATOR interface.
This is required by EDK2 'HTTPS Boot' feature of OVMF to tell
the guest which TLS ciphers it can use.
CI jobs results:
https://travis-ci.org/github/philmd/qemu/builds/704724619https://gitlab.com/philmd/qemu/-/pipelines/162938106https://cirrus-ci.com/build/4682977303068672
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Merge remote-tracking branch 'remotes/philmd-gitlab/tags/fw_cfg-20200704' into staging
firmware (and crypto) patches
- add the tls-cipher-suites object,
- add the ability to QOM objects to produce data consumable
by the fw_cfg device,
- let the tls-cipher-suites object implement the
FW_CFG_DATA_GENERATOR interface.
This is required by EDK2 'HTTPS Boot' feature of OVMF to tell
the guest which TLS ciphers it can use.
CI jobs results:
https://travis-ci.org/github/philmd/qemu/builds/704724619https://gitlab.com/philmd/qemu/-/pipelines/162938106https://cirrus-ci.com/build/4682977303068672
# gpg: Signature made Sat 04 Jul 2020 17:37:08 BST
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE
* remotes/philmd-gitlab/tags/fw_cfg-20200704:
crypto/tls-cipher-suites: Produce fw_cfg consumable blob
softmmu/vl: Allow -fw_cfg 'gen_id' option to use the 'etc/' namespace
softmmu/vl: Let -fw_cfg option take a 'gen_id' argument
hw/nvram/fw_cfg: Add the FW_CFG_DATA_GENERATOR interface
crypto: Add tls-cipher-suites object
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Currently we have 2 types of vhost backends in QEMU: vhost kernel and
vhost-user. The above patch provides a generic device for vDPA purpose,
this vDPA device exposes to user space a non-vendor-specific configuration
interface for setting up a vhost HW accelerator, this patch set introduces
a third vhost backend called vhost-vdpa based on the vDPA interface.
Vhost-vdpa usage:
qemu-system-x86_64 -cpu host -enable-kvm \
......
-netdev type=vhost-vdpa,vhostdev=/dev/vhost-vdpa-id,id=vhost-vdpa0 \
-device virtio-net-pci,netdev=vhost-vdpa0,page-per-vq=on \
Signed-off-by: Lingshan zhu <lingshan.zhu@intel.com>
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Signed-off-by: Cindy Lu <lulu@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20200701145538.22333-14-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
On the host OS, various aspects of TLS operation are configurable.
In particular it is possible for the sysadmin to control the TLS
cipher/protocol algorithms that applications are permitted to use.
* Any given crypto library has a built-in default priority list
defined by the distro maintainer of the library package (or by
upstream).
* The "crypto-policies" RPM (or equivalent host OS package)
provides a config file such as "/etc/crypto-policies/config",
where the sysadmin can set a high level (library-independent)
policy.
The "update-crypto-policies --set" command (or equivalent) is
used to translate the global policy to individual library
representations, producing files such as
"/etc/crypto-policies/back-ends/*.config". The generated files,
if present, are loaded by the various crypto libraries to
override their own built-in defaults.
For example, the GNUTLS library may read
"/etc/crypto-policies/back-ends/gnutls.config".
* A management application (or the QEMU user) may overide the
system-wide crypto-policies config via their own config, if
they need to diverge from the former.
Thus the priority order is "QEMU user config" > "crypto-policies
system config" > "library built-in config".
Introduce the "tls-cipher-suites" object for exposing the ordered
list of permitted TLS cipher suites from the host side to the
guest firmware, via fw_cfg. The list is represented as an array
of bytes.
The priority at which the host-side policy is retrieved is given
by the "priority" property of the new object type. For example,
"priority=@SYSTEM" may be used to refer to
"/etc/crypto-policies/back-ends/gnutls.config" (given that QEMU
uses GNUTLS).
The firmware uses the IANA_TLS_CIPHER array for configuring
guest-side TLS, for example in UEFI HTTPS Boot.
[Description from Daniel P. Berrangé, edited by Laszlo Ersek.]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200623172726.21040-2-philmd@redhat.com>
Deprecation period is run out and it's a time to flip the switch
introduced by cd5ff8333a. Disable legacy option for new machine
types (since 5.1) and amend documentation.
'-numa node,memdev' shall be used instead of disabled option
with new machine types.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200609135635.761587-1-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The docs are ambiguous about the difference (or actually their
equality) between options '-virtfs' vs. '-fsdev'. So clarify that
'-virtfs' is actually just a convenience shortcut for its
generalized form '-fsdev' in conjunction with '-device virtio-9p-pci'.
And as we're at it, also be a bit more descriptive what 9pfs is
actually used for.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <208f1fceffce2feaf7c900b29e326b967dce7762.1585661532.git.qemu_oss@crudebyte.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
The documentation of our -s and -gdb options is quite old; in
particular it still claims that it will cause QEMU to stop and wait
for the gdb connection, when this has not been true for some time:
you also need to pass -S if you want to make QEMU not launch the
guest on startup.
Improve the documentation to mention this requirement in the
executable's --help output, the documentation of the -gdb option in
the manual, and in the "GDB usage" chapter.
Includes some minor tweaks to these paragraphs of documentation
since I was editing them anyway (such as dropping the description
of our gdb support as "primitive").
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200403094014.9589-1-peter.maydell@linaro.org
The "expired_scan_cycle" determines period of scanning expired
primary node net packets.
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The "compare_timeout" determines the maximum time to hold the primary net packet.
This patch expose the "compare_timeout", make user have ability to
adjest the value according to application scenarios.
QMP command demo:
{ "execute": "qom-get",
"arguments": { "path": "/objects/comp0",
"property": "compare_timeout" } }
{ "execute": "qom-set",
"arguments": { "path": "/objects/comp0",
"property": "compare_timeout",
"value": 5000} }
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Update the header comments in .hx files that mention STEXI/ETEXI
markup; this is now SRST/ERST as all these files have been
converted to rST.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200306171749.10756-3-peter.maydell@linaro.org
We no longer generate texinfo from the hxtool input files,
so delete all the STEXI/ETEXI blocks.
This commit was created using the following Perl one-liner:
perl -i -n -e '$suppress = 1,next if /^STEXI/;$suppress=0,next if /^ETEXI/; print if !$suppress;' *.hx
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit contains hand-written fixes for some issues with the
autogenerated rST fragments in qemu-options.hx:
* Sphinx complains about the UTF-8 art table in the documentation of
the -drive option. Replace it with a proper rST format table.
* rST does not like definition list entries with no actual
definition, but it is possible to work around this by putting a
single escaped literal space as the definition line.
* The "-g widthxheight" option documentation suffers particularly
badly from losing the distinction between italics and fixed-width
as a result of the auto conversion, so put it back in again.
* The script missed some places that use the |qemu_system| etc
macros and need to be marked up as parsed-literal blocks.
* The script autogenerated an expanded out version of the
contents of qemu-option-trace.texi; replace it with an
qemu-option-trace.rst.inc include.
This is sufficient that we can enable inclusion of the
option documentation from invocation.rst.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-28-peter.maydell@linaro.org
Add the rST versions of the documentation fragments to qemu-options.hx.
This is entirely autogenerated using scripts/hxtool-conv.pl.
The result is not quite valid rST in all places; the following
commit will have the manual adjustments needed.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The SPARC and PPC targets currently have a fragment of target-specific
information about the -g and -prom options which would be better placed
as part of the general documentation of those options in qemu-options.hx.
Move the relevant information to those locations.
SPARC also has a bit of text about the -M option which is out of
date and provides no useful information over the generic documentation
of that option, so just delete it.
The motivation here is again to avoid having to awkwardly include
this text into the rST version of the qemu.1 manpage.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-25-peter.maydell@linaro.org
Currently the per-target documentation for those targets that
implement semihosting includes a bit of text that goes into both the
manual and the manpage about options specific to the target. This
text is redundant with the earlier generic option description of the
semihosting option produced from qemu-options.hx. To avoid having
to create a lot of stub include files to include into the rST
generated qemu.1 manpage, roll target-specific bits of information
into the qemu-options.hx text, so the user doesn't have to look
in two places for this information.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-24-peter.maydell@linaro.org
Since qemu-doc.texi is mostly including files from docs/system,
move the existing include files there for consistency.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-12-peter.maydell@linaro.org
Message-id: 20200226113034.6741-12-pbonzini@redhat.com
[PMM: update MAINTAINERS line for qemu-option-trace.texi]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The L2TPv3 RFC number is 3931:
https://tools.ietf.org/html/rfc3931
Reported-by: Henrik Johansson <henrikjohansson@rocketmail.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
To switch the Secondary to Primary, we need to insert new filters
before the filter-rewriter.
Add the options insert= and position= to be able to insert filters
anywhere in the filter list.
position should be "head" or "tail" to insert at the head or
tail of the filter list or it should be "id=<id>" to specify
the id of another filter.
insert should be either "before" or "behind" to specify where to
insert the new filter relative to the one specified with position.
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The default NIC model for QEMU varies per machine type, and is liable to
change across machine type versions. Documenting e1000 NIC as the
default for PC/i386 is thus misleading to users at best. In particular
the PC q35 machine type switched to use e1000e, but only in machine
type versions after 2.11.
Rather than try to explain which NIC model is used for each machine
type version, remove mention of e1000 as the default, and steer users
towards always specifying their desired model.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is the only instance of a non-zero constant not using a symbolic
constant.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20200204165638.25051-1-jsnow@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The qemu-block-drivers documentation is currently in
docs/qemu-block-drivers.texi in Texinfo format, which we present
to the user as:
* a qemu-block-drivers manpage
* a section of the main qemu-doc HTML documentation
Convert the documentation to rST format, and present it to
the user as:
* a qemu-block-drivers manpage
* part of the system/ Sphinx manual
This follows the same pattern we've done for qemu-ga and qemu-nbd.
We have to drop a cross-reference from the documentation of the
-cdrom option back to the qemu-block-drivers documentation, since
they're no longer within the same texinfo document.
As noted in a comment, the manpage output is slightly compromised
due to limitations in Sphinx. In an ideal world, the HTML output
would have the various headings like 'Disk image file formats'
as top-level section headings (which then appear in the overall
system manual's table-of-contents), and it would not have the
section headings which make sense only for the manpage like
'synopsis', 'description', and 'see also'. Unfortunately, the
mechanism Sphinx provides for restricting pieces of documentation
is limited to the point of being flawed: the 'only::' directive
is implemented as a filter that is applied at a very late stage
in the document processing pipeline, rather than as an early
equivalent of an #ifdef. This means that Sphinx's process of
identifying which section heading markup styles are which levels
of heading gets confused if the 'only::' directive contains
section headings which would affect the heading-level of a
later heading. I have opted to prioritise making the HTML format
look better, with the compromise being that in the manpage
the 'Disk image file formats' &c headings are top-level headings
rather than being sub-headings under the traditional 'Description'
top-level section title.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200116141511.16849-4-peter.maydell@linaro.org
We already print availabled devices with "-device help", or available
backends with "-netdev help" or "-chardev help". Let's provide a way
for the users to query the available display backends, too.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 20200108144702.29969-1-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add -numa hmat-cache option to provide Memory Side Cache Information.
These memory attributes help to build Memory Side Cache Information
Structure(s) in ACPI Heterogeneous Memory Attribute Table (HMAT).
Before using hmat-cache option, enable HMAT with -machine hmat=on.
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Liu Jingqi <jingqi.liu@intel.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20191213011929.2520-4-tao3.xu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Add -numa hmat-lb option to provide System Locality Latency and
Bandwidth Information. These memory attributes help to build
System Locality Latency and Bandwidth Information Structure(s)
in ACPI Heterogeneous Memory Attribute Table (HMAT). Before using
hmat-lb option, enable HMAT with -machine hmat=on.
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Liu Jingqi <jingqi.liu@intel.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20191213011929.2520-3-tao3.xu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
In ACPI 6.3 chapter 5.2.27 Heterogeneous Memory Attribute Table (HMAT),
The initiator represents processor which access to memory. And in 5.2.27.3
Memory Proximity Domain Attributes Structure, the attached initiator is
defined as where the memory controller responsible for a memory proximity
domain. With attached initiator information, the topology of heterogeneous
memory can be described. Add new machine property 'hmat' to enable all
HMAT specific options.
Extend CLI of "-numa node" option to indicate the initiator numa node-id.
In the linux kernel, the codes in drivers/acpi/hmat/hmat.c parse and report
the platform's HMAT tables. Before using initiator option, enable HMAT with
-machine hmat=on.
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Jingqi Liu <jingqi.liu@intel.com>
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20191213011929.2520-2-tao3.xu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This reverts commit bbd9e6985f.
In 20a1922032 we allowed reboot-timeout=-1 again, so update the doc
accordingly.
Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191205024821.245435-1-hhan@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
-msg parameter "timestamp" defaults to "off" if you don't specify msg,
and to "on" if you do. Messed up right in commit 5e2ac51917 "add
timestamp to error_report()". Mostly harmless, because "timestamp" is
the only parameter, so "if you do" is "-msg ''", which nobody does.
Change the default to "off" no matter what.
While there, rename enable_timestamp_msg to error_with_timestamp, and
polish documentation.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191010081508.8978-1-armbru@redhat.com>
The first machine property to fall is Xen's Intel integrated graphics
passthrough. The "-machine igd-passthru" option does not set anymore
a property on the machine object, but desugars to a GlobalProperty on
accelerator objects.
The setter is very simple, since the value ends up in a
global variable, so this patch also provides an example before the more
complicated cases that follow it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-tb-size fits nicely in the new framework for accelerator-specific options. It
is a very niche option, so insta-deprecate it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It's been deprecated since QEMU v3.1. We've explicitly asked in the
deprecation message that people should speak up on qemu-devel in case
they are still actively using the bluetooth part of QEMU, but nobody
ever replied that they are really still using it.
I've tried it on my own to use this bluetooth subsystem for one of my
guests, but I was also not able to get it running anymore: When I was
trying to pass-through a real bluetooth device, either the guest did
not see the device at all, or the guest crashed.
Even worse for the emulated device: When running
qemu-system-x86_64 -bt device:keyboard
QEMU crashes once you hit a key.
So it seems like the bluetooth stack is not only neglected, it is
completely bitrotten, as far as I can tell. The only attention that
this code got during the past years were some CVEs that have been
spotted there. So this code is a burden for the developers, without
any real benefit anymore. Time to remove it.
Note: hw/bt/Kconfig only gets cleared but not removed here yet.
Otherwise there is a problem with the *-softmmu/config-devices.mak.d
dependency files - they still contain a reference to this file which
gets evaluated first on some build hosts, before the file gets
properly recreated. To avoid breaking these builders, we still need
the file around for some time. It will get removed in a couple of
weeks instead.
Message-Id: <20191120091014.16883-4-thuth@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Add -object iothread documentation to the man page, including references
to the query-iothread QMP command and qom-set syntax for adjusting
adaptive polling parameters at run-time.
Reported-by: Zhenyu Ye <yezhenyu2@huawei.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20191025122236.29815-1-stefanha@redhat.com
Message-Id: <20191025122236.29815-1-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
It's been marked as deprecated since QEMU v4.1, time to remove it now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Improve the help text of the "-display" option:
- Only print the options that we have enabled in the binary
(similar to what we do for other options like -netdev already)
- The "frame=on|off" from "-display sdl" has been removed in commit
09bd7ba9f5 ("Remove deprecated -no-frame option"), so we should
not show this in the help text anymore
- The "-display egl-headless" line was missing a "\n" at the end
- Indent the default display text in a nicer way
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20191023120129.13721-1-huth@tuxfamily.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
- use --enable-plugins @ configure
- low impact introspection (-plugin empty.so to measure overhead)
- plugins cannot alter guest state
- example plugins included in source tree (tests/plugins)
- -d plugin to enable plugin output in logs
- check-tcg runs extra tests when plugins enabled
- documentation in docs/devel/plugins.rst
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-tcg-plugins-281019-4' into staging
TCG Plugins initial implementation
- use --enable-plugins @ configure
- low impact introspection (-plugin empty.so to measure overhead)
- plugins cannot alter guest state
- example plugins included in source tree (tests/plugins)
- -d plugin to enable plugin output in logs
- check-tcg runs extra tests when plugins enabled
- documentation in docs/devel/plugins.rst
# gpg: Signature made Mon 28 Oct 2019 15:13:23 GMT
# gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* remotes/stsquad/tags/pull-tcg-plugins-281019-4: (57 commits)
travis.yml: enable linux-gcc-debug-tcg cache
MAINTAINERS: add me for the TCG plugins code
scripts/checkpatch.pl: don't complain about (foo, /* empty */)
.travis.yml: add --enable-plugins tests
include/exec: wrap cpu_ldst.h in CONFIG_TCG
accel/stubs: reduce headers from tcg-stub
tests/plugin: add hotpages to analyse memory access patterns
tests/plugin: add instruction execution breakdown
tests/plugin: add a hotblocks plugin
tests/tcg: enable plugin testing
tests/tcg: drop test-i386-fprem from TESTS when not SLOW
tests/tcg: move "virtual" tests to EXTRA_TESTS
tests/tcg: set QEMU_OPTS for all cris runs
tests/tcg/Makefile.target: fix path to config-host.mak
tests/plugin: add sample plugins
linux-user: support -plugin option
vl: support -plugin option
plugin: add qemu_plugin_outs helper
plugin: add qemu_plugin_insn_disas helper
plugin: expand the plugin_init function to include an info block
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch adds support for a graphic framebuffer device.
This device can be added as a sysbus device or as a NuBus device.
It is accessed as a framebuffer but the color palette can be set.
Co-developed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-Id: <20191026164546.30020-9-laurent@vivier.eu>
- qcow2: Fix data corruption bug that is triggered in partial cluster
allocation with default options
- qapi: add support for blkreplay driver
- doc: Describe missing generic -blockdev options
- iotests: Fix 118 when run as root
- Minor code cleanups
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches:
- qcow2: Fix data corruption bug that is triggered in partial cluster
allocation with default options
- qapi: add support for blkreplay driver
- doc: Describe missing generic -blockdev options
- iotests: Fix 118 when run as root
- Minor code cleanups
# gpg: Signature made Fri 25 Oct 2019 14:19:04 BST
# gpg: using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream:
qcow2: Fix corruption bug in qcow2_detect_metadata_preallocation()
coroutine: Add qemu_co_mutex_assert_locked()
doc: Describe missing generic -blockdev options
block/backup: drop dead code from backup_job_create
blockdev: Use error_report() in hmp_commit()
iotests: Skip read-only cases in 118 when run as root
qapi: add support for blkreplay driver
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We added more generic options after introducing -blockdev and forgot to
update the documentation (man page and --help output) accordingly. Do
that now.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Since ee5d0f89d, -1 is not valid for the value of reboot-timeout. Update
that in qemu-options doc.
Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191015151451.727323-1-hhan@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This will allow us to disable mixeng when we use a decent backend.
Disabling mixeng have a few advantages:
* we no longer convert the audio output from one format to another, when
the underlying audio system would just convert it to a third format.
We no longer convert, only the underlying system, when needed.
* the underlying system probably has better resampling and sample format
converting methods anyway...
* we may support formats that the mixeng currently does not support (S24
or float samples, more than two channels)
* when using an audio server (like pulseaudio) different sound card
outputs will show up as separate streams, even if we use only one
backend
Disadvantages:
* audio capturing no longer works (wavcapture, and vnc audio extension)
* some backends only support a single playback stream or very picky
about the audio format. In this case we can't disable mixeng.
Originally thw two main use cases of the disabled option was: using
unsupported audio formats (5.1 and 7.1 audio) and having different
pulseaudio streams per audio frontend. Since we can have multiple
-audiodevs, the latter is not that important, so currently you only need
this option if you want to use 5.1 or 7.1 audio (implemented in a later
patch), otherwise it's probably better to stick to the old and tried
mixeng, since it's less picky about the backends.
The ideal solution would be to port as much as possible to gstreamer,
but this is currently out of scope:
https://wiki.qemu.org/Internships/ProjectIdeas/AudioGStreamer
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 5765186a7aadd51a72bc7d3e804307f0ee8a34ce.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
'warn' (default): Only log an error message (once) on host if more than one
device is shared by same export, except of that just ignore this config
error though. This is the default behaviour for not breaking existing
installations implying that they really know what they are doing.
'forbid': Like 'warn', but except of just logging an error this
also denies access of guest to additional devices.
'remap': Allows to share more than one device per export by remapping
inodes from host to guest appropriately. To support multiple devices on the
9p share, and avoid qid path collisions we take the device id as input to
generate a unique QID path. The lowest 48 bits of the path will be set
equal to the file inode, and the top bits will be uniquely assigned based
on the top 16 bits of the inode and the device id.
Signed-off-by: Antonios Motakis <antonios.motakis@huawei.com>
[CS: - Rebased to https://github.com/gkurz/qemu/commits/9p-next
(SHA1 7fc4c49e91).
- Added virtfs option 'multidevs', original patch simply did the inode
remapping without being asked.
- Updated hash calls to new xxhash API.
- Updated docs for new option 'multidevs'.
- Fixed v9fs_do_readdir() not having remapped inodes.
- Log error message when running out of prefixes in
qid_path_prefixmap().
- Fixed definition of QPATH_INO_MASK.
- Wrapped qpp_table initialization to dedicated qpp_table_init()
function.
- Dropped unnecessary parantheses in qpp_lookup_func().
- Dropped unnecessary g_malloc0() result checks. ]
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
[groug: - Moved "multidevs" parsing to the local backend.
- Added hint to invalid multidevs option error.
- Turn "remap" into "x-remap". ]
Signed-off-by: Greg Kurz <groug@kaod.org>
audio: new backend api (first part of the surround sound patch series).
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Merge remote-tracking branch 'remotes/kraxel/tags/audio-20190924-pull-request' into staging
audio: documentation fixes.
audio: new backend api (first part of the surround sound patch series).
# gpg: Signature made Tue 24 Sep 2019 07:19:31 BST
# gpg: using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/audio-20190924-pull-request:
audio: split ctl_* functions into enable_* and volume_*
audio: common rate control code for timer based outputs
audio: unify input and output mixeng buffer management
audio: remove remains of the old backend api
wavaudio: port to the new audio backend api
spiceaudio: port to the new audio backend api
sdlaudio: port to the new audio backend api
paaudio: port to the new audio backend api
ossaudio: port to the new audio backend api
noaudio: port to the new audio backend api
dsoundaudio: port to the new audio backend api
coreaudio: port to the new audio backend api
alsaaudio: port to the new audio backend api
audio: api for mixeng code free backends
audio: fix ALSA period-length typo in documentation
audio: fix buffer-length typo in documentation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
