Commit Graph

745 Commits

Author SHA1 Message Date
Michael Tokarev
cba42d61a3 Various spelling fixes
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>
2021-03-09 21:19:10 +01:00
Paolo Bonzini
a9b1315f86 chardev: add nodelay option
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>
2021-03-06 11:41:54 +01:00
Paolo Bonzini
b979c93121 vl: deprecate -writeconfig
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>
2021-02-25 15:41:50 +01:00
Daniel P. Berrangé
82a17d1d67 qemu-options: update to show preferred boolean syntax for -vnc
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>
2021-02-25 14:14:33 +01:00
Daniel P. Berrangé
bf24095ff5 qemu-options: update to show preferred boolean syntax for -incoming
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>
2021-02-25 14:14:33 +01:00
Daniel P. Berrangé
8b0dc24651 qemu-options: update to show preferred boolean syntax for -netdev
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>
2021-02-25 14:14:33 +01:00
Daniel P. Berrangé
a9daa36a52 qemu-options: update to show preferred boolean syntax for -spice
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>
2021-02-25 14:14:33 +01:00
Daniel P. Berrangé
bfdc126768 qemu-options: update to show preferred boolean syntax for -chardev
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>
2021-02-25 14:14:33 +01:00
Igor Mammedov
8db0b20415 machine: add missing doc for memory-backend option
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>
2021-02-08 14:43:54 +01:00
Stefan Hajnoczi
86635aa4e9 hostmem-file: add readonly=on|off option
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>
2021-02-01 17:07:34 -05:00
Daniel P. Berrangé
4d7beeab38 Prefer 'on' | 'off' over 'yes' | 'no' for bool options
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>
2021-01-29 17:07:53 +00:00
Paolo Bonzini
c27025e044 runstate: cleanup reboot and panic actions
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>
2021-01-21 13:00:41 +01:00
Keith Packard
a10b9d93ec riscv: Add semihosting support
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>
2021-01-18 10:05:06 +00:00
Peter Maydell
825a215c00 audio: improvements for sdl, pulse, fsound.
audio: cleanups & codestyle fixes.
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Merge remote-tracking branch 'remotes/kraxel/tags/audio-20210115-pull-request' into staging

audio: improvements for sdl, pulse, fsound.
audio: cleanups & codestyle fixes.

# gpg: Signature made Fri 15 Jan 2021 13:20:56 GMT
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# 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-20210115-pull-request: (30 commits)
  audio: space prohibited between function name and parenthesis'('
  audio: Suspect code indent for conditional statements
  audio: Don't use '%#' in format strings
  audio: Fix lines over 90 characters
  audio: foo* bar" should be "foo *bar".
  audio: Add spaces around operator/delete redundant spaces
  audio: Add braces for statements/fix braces' position
  dsoundaudio: fix log message
  dsoundaudio: enable f32 audio sample format
  dsoundaudio: rename dsound_open()
  dsoundaudio: replace GetForegroundWindow()
  paaudio: send recorded data in smaller chunks
  paaudio: limit minreq to 75% of audio timer_rate
  paaudio: comment bugs in functions qpa_init_*
  paaudio: remove unneeded code
  paaudio: wait until the playback stream is ready
  paaudio: wait for PA_STREAM_READY in qpa_write()
  paaudio: avoid to clip samples multiple times
  audio: remove remaining unused plive code
  sdlaudio: enable (in|out).mixing-engine=off
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-01-15 22:21:21 +00:00
Volker Rümelin
5a0926c23f sdlaudio: add -audiodev sdl,out.buffer-count option
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>
2021-01-15 11:25:22 +01:00
Daniel P. Berrangé
7b5fa0b583 ui: add support for remote power control to VNC server
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>
2021-01-15 11:22:42 +01:00
Richard Henderson
a35b3e1415 tcg: Add --accel tcg,split-wx property
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>
2021-01-07 05:09:41 -10:00
Thomas Huth
90d6a086bb Remove the deprecated -show-cursor option
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>
2020-12-15 12:52:03 -05:00
Thomas Huth
c8c9dc42b7 Remove the deprecated -realtime option
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>
2020-12-15 12:52:02 -05:00
Philippe Mathieu-Daudé
e76f68d3cc accel/tcg: Remove deprecated '-tb-size' option
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>
2020-12-15 12:52:01 -05:00
Alejandro Jimenez
c753e8e725 vl: Add option to avoid stopping VM upon guest panic
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>
2020-12-15 12:51:58 -05:00
Alejandro Jimenez
2a5ad60b54 vl: Add an -action option specifying response to guest events
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>
2020-12-15 12:51:58 -05:00
Peter Maydell
fa647905e6 qemu-options.hx: Fix minor issues in icount documentation
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>
2020-12-13 17:02:42 +01:00
Paolo Bonzini
991c180d74 treewide: do not use short-form boolean options
They are going to be deprecated, avoid warnings on stdout while the
tests run.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-10 12:15:11 -05:00
Thomas Huth
923e931188 docs: Get rid of the weird _005f links in the man page
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>
2020-11-20 13:19:08 +01:00
Paolo Bonzini
9f2931bc65 machine: remove deprecated -machine enforce-config-section option
Deprecated since 3.1 and complicates the initialization sequence,
remove it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-26 07:08:39 -04:00
Thomas Huth
7239c050e8 Remove deprecated -no-kvm option
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>
2020-10-22 11:53:55 -04:00
Stefano Garzarella
ad1e691db2 docs: add 'io_uring' option to 'aio' param in qemu-options.hx
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>
2020-10-05 10:59:42 +01:00
Daniel P. Berrangé
48a7ff4d51 qemu-options: document SMBIOS type 11 settings
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>
2020-09-29 03:06:12 -04:00
Laszlo Ersek
353a06b425 manual: escape backslashes in "parsed-literal" blocks
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>
2020-09-16 10:52:34 +02:00
Tianjia Zhang
8d73ec8946 qemu-options.hx: Fix typo for netdev documentation
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>
2020-09-01 09:17:58 +02:00
Ying Fang
c906e03909 hw/smbios: add options for type 4 max-speed and current-speed
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>
2020-08-27 08:29:13 -04:00
Corey Minyard
789101b73d ipmi: Fix a man page entry
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>
2020-07-17 11:39:46 -05:00
Corey Minyard
323679da77 ipmi: Add man page pieces for the IPMI PCI devices
This was forgotten when the devices were added.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2020-07-17 11:39:46 -05:00
Zhang Chen
2b28a7ef90 qemu-options.hx: Clean up and fix typo for colo-compare
Fix some typo and optimized some descriptions.

Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-07-15 21:00:13 +08:00
Zhang Chen
a2e5cb7a87 net/colo-compare.c: Expose compare "max_queue_size" to users
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>
2020-07-15 21:00:13 +08:00
Mario Smarduch
2880ffb089 util/qemu-error: prepend guest name to error message to identify affected VM owner
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>
2020-07-10 18:02:15 -04:00
Peter Maydell
aecdfcc3f8 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/704724619
   https://gitlab.com/philmd/qemu/-/pipelines/162938106
   https://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/704724619
  https://gitlab.com/philmd/qemu/-/pipelines/162938106
  https://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>
2020-07-09 20:01:43 +01:00
Cindy Lu
108a64818e vhost-vdpa: introduce vhost-vdpa backend
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>
2020-07-07 07:59:51 -04:00
Philippe Mathieu-Daudé
69699f3055 crypto/tls-cipher-suites: Produce fw_cfg consumable blob
Since our format is consumable by the fw_cfg device,
we can implement the FW_CFG_DATA_GENERATOR interface.

Example of use to dump the cipher suites (if tracing enabled):

  $ qemu-system-x86_64 -S \
    -object tls-cipher-suites,id=mysuite1,priority=@SYSTEM \
    -fw_cfg name=etc/path/to/ciphers,gen_id=mysuite1 \
    -trace qcrypto\*
  1590664444.197123:qcrypto_tls_cipher_suite_priority priority: @SYSTEM
  1590664444.197219:qcrypto_tls_cipher_suite_info data=[0x13,0x02] version=TLS1.3 name=TLS_AES_256_GCM_SHA384
  1590664444.197228:qcrypto_tls_cipher_suite_info data=[0x13,0x03] version=TLS1.3 name=TLS_CHACHA20_POLY1305_SHA256
  1590664444.197233:qcrypto_tls_cipher_suite_info data=[0x13,0x01] version=TLS1.3 name=TLS_AES_128_GCM_SHA256
  1590664444.197236:qcrypto_tls_cipher_suite_info data=[0x13,0x04] version=TLS1.3 name=TLS_AES_128_CCM_SHA256
  1590664444.197240:qcrypto_tls_cipher_suite_info data=[0xc0,0x30] version=TLS1.2 name=TLS_ECDHE_RSA_AES_256_GCM_SHA384
  1590664444.197245:qcrypto_tls_cipher_suite_info data=[0xcc,0xa8] version=TLS1.2 name=TLS_ECDHE_RSA_CHACHA20_POLY1305
  1590664444.197250:qcrypto_tls_cipher_suite_info data=[0xc0,0x14] version=TLS1.0 name=TLS_ECDHE_RSA_AES_256_CBC_SHA1
  1590664444.197254:qcrypto_tls_cipher_suite_info data=[0xc0,0x2f] version=TLS1.2 name=TLS_ECDHE_RSA_AES_128_GCM_SHA256
  1590664444.197258:qcrypto_tls_cipher_suite_info data=[0xc0,0x13] version=TLS1.0 name=TLS_ECDHE_RSA_AES_128_CBC_SHA1
  1590664444.197261:qcrypto_tls_cipher_suite_info data=[0xc0,0x2c] version=TLS1.2 name=TLS_ECDHE_ECDSA_AES_256_GCM_SHA384
  1590664444.197266:qcrypto_tls_cipher_suite_info data=[0xcc,0xa9] version=TLS1.2 name=TLS_ECDHE_ECDSA_CHACHA20_POLY1305
  1590664444.197270:qcrypto_tls_cipher_suite_info data=[0xc0,0xad] version=TLS1.2 name=TLS_ECDHE_ECDSA_AES_256_CCM
  1590664444.197274:qcrypto_tls_cipher_suite_info data=[0xc0,0x0a] version=TLS1.0 name=TLS_ECDHE_ECDSA_AES_256_CBC_SHA1
  1590664444.197278:qcrypto_tls_cipher_suite_info data=[0xc0,0x2b] version=TLS1.2 name=TLS_ECDHE_ECDSA_AES_128_GCM_SHA256
  1590664444.197283:qcrypto_tls_cipher_suite_info data=[0xc0,0xac] version=TLS1.2 name=TLS_ECDHE_ECDSA_AES_128_CCM
  1590664444.197287:qcrypto_tls_cipher_suite_info data=[0xc0,0x09] version=TLS1.0 name=TLS_ECDHE_ECDSA_AES_128_CBC_SHA1
  1590664444.197291:qcrypto_tls_cipher_suite_info data=[0x00,0x9d] version=TLS1.2 name=TLS_RSA_AES_256_GCM_SHA384
  1590664444.197296:qcrypto_tls_cipher_suite_info data=[0xc0,0x9d] version=TLS1.2 name=TLS_RSA_AES_256_CCM
  1590664444.197300:qcrypto_tls_cipher_suite_info data=[0x00,0x35] version=TLS1.0 name=TLS_RSA_AES_256_CBC_SHA1
  1590664444.197304:qcrypto_tls_cipher_suite_info data=[0x00,0x9c] version=TLS1.2 name=TLS_RSA_AES_128_GCM_SHA256
  1590664444.197308:qcrypto_tls_cipher_suite_info data=[0xc0,0x9c] version=TLS1.2 name=TLS_RSA_AES_128_CCM
  1590664444.197312:qcrypto_tls_cipher_suite_info data=[0x00,0x2f] version=TLS1.0 name=TLS_RSA_AES_128_CBC_SHA1
  1590664444.197316:qcrypto_tls_cipher_suite_info data=[0x00,0x9f] version=TLS1.2 name=TLS_DHE_RSA_AES_256_GCM_SHA384
  1590664444.197320:qcrypto_tls_cipher_suite_info data=[0xcc,0xaa] version=TLS1.2 name=TLS_DHE_RSA_CHACHA20_POLY1305
  1590664444.197325:qcrypto_tls_cipher_suite_info data=[0xc0,0x9f] version=TLS1.2 name=TLS_DHE_RSA_AES_256_CCM
  1590664444.197329:qcrypto_tls_cipher_suite_info data=[0x00,0x39] version=TLS1.0 name=TLS_DHE_RSA_AES_256_CBC_SHA1
  1590664444.197333:qcrypto_tls_cipher_suite_info data=[0x00,0x9e] version=TLS1.2 name=TLS_DHE_RSA_AES_128_GCM_SHA256
  1590664444.197337:qcrypto_tls_cipher_suite_info data=[0xc0,0x9e] version=TLS1.2 name=TLS_DHE_RSA_AES_128_CCM
  1590664444.197341:qcrypto_tls_cipher_suite_info data=[0x00,0x33] version=TLS1.0 name=TLS_DHE_RSA_AES_128_CBC_SHA1
  1590664444.197345:qcrypto_tls_cipher_suite_count count: 29

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: <20200623172726.21040-6-philmd@redhat.com>
2020-07-03 18:16:01 +02:00
Philippe Mathieu-Daudé
993aec27aa crypto: Add tls-cipher-suites object
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>
2020-07-03 18:16:01 +02:00
Igor Mammedov
32a354dc6c numa: forbid '-numa node, mem' for 5.1 and newer machine types
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>
2020-06-26 09:39:39 -04:00
xiaoqiang zhao
e339273bfc qemu-options: updates for abstract unix sockets
add options documents changes for -chardev

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-05-20 10:34:53 +01:00
Christian Schoenebeck
65abaa01ee qemu-options.hx: 9p: clarify -virtfs vs. -fsdev
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>
2020-05-14 08:06:43 +02:00
Peter Maydell
e5910d42dd docs: Improve our gdbstub documentation
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
2020-04-14 13:15:40 +01:00
Zhang Chen
cca35ac4d1 net/colo-compare.c: Expose "expired_scan_cycle" to users
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>
2020-03-31 21:14:35 +08:00
Zhang Chen
9cc43c94b3 net/colo-compare.c: Expose "compare_timeout" to users
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>
2020-03-31 21:14:35 +08:00
Volker Rümelin
49f77e6faf audio: add audiodev format=f32 option documentation
The documentaion for -audiodev format=f32 option was missing.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-id: 20200308193321.20668-6-vr_qemu@t-online.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-03-16 10:18:07 +01:00
Peter Maydell
3c95fdef94 Update comments in .hx files that mention Texinfo
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
2020-03-12 11:14:05 +00:00
Peter Maydell
29f9dff790 *.hx: Remove all the STEXI/ETEXI blocks
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>
2020-03-06 11:06:55 +00:00
Peter Maydell
09ce5f2d6b qemu-options.hx: Fix up the autogenerated rST
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
2020-03-06 11:06:55 +00:00
Peter Maydell
e2fcbf4263 qemu-options.hx: Add rST documentation fragments
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>
2020-03-06 10:07:14 +00:00
Peter Maydell
196afbb094 docs: Roll -prom-env and -g target-specific info into qemu-options.hx
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
2020-03-06 10:05:18 +00:00
Peter Maydell
44d79a6bd7 docs: Roll semihosting option information into qemu-options.hx
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
2020-03-06 10:05:12 +00:00
Paolo Bonzini
abcd92db6a qemu-doc: move included files to docs/system
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>
2020-03-06 10:04:57 +00:00
Stefan Hajnoczi
21843dc48e l2tpv3: fix RFC number typo in qemu-options.hx
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>
2020-03-03 18:04:47 +08:00
Lukas Straub
1973136532 net/filter.c: Add Options to insert filters anywhere in the filter list
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>
2020-03-03 18:04:47 +08:00
Daniel P. Berrangé
416b71906e docs: stop documenting the e1000 NIC model as the default
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>
2020-02-07 12:22:19 +00:00
John Snow
60f9a4ef7e qemu-options: replace constant 1 with HAS_ARG
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>
2020-02-06 11:08:49 +01:00
Peter Maydell
acab923dce qemu-block-drivers: Convert to rST
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
2020-01-23 15:34:04 +00:00
Thomas Huth
c388f408b5 ui: Print available display backends with '-display help'
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>
2020-01-14 07:26:36 +01:00
Liu Jingqi
c412a48d4d numa: Extend CLI to provide memory side cache information
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>
2020-01-05 07:03:03 -05:00
Liu Jingqi
9b12dfa03a numa: Extend CLI to provide memory latency and bandwidth information
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>
2020-01-05 07:03:03 -05:00
Tao Xu
244b3f4485 numa: Extend CLI to provide initiator information for numa nodes
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>
2020-01-05 07:03:03 -05:00
Peter Maydell
8e5943260a Trivial fixes (20191218)
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Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-pull-request' into staging

Trivial fixes (20191218)

# gpg: Signature made Wed 18 Dec 2019 13:00:34 GMT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-pull-request:
  qemu-doc: Remove the unused "Guest Agent" node
  Revert "qemu-options.hx: Update for reboot-timeout parameter"
  target/sparc: Remove old TODO file
  test-keyval: Tighten test of trailing crap after size
  util/cutils: Turn FIXME comment into QEMU_BUILD_BUG_ON()
  monitor: Remove unused define
  MAINTAINERS: Add hw/sd/ssi-sd.c in the SD section

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-12-20 12:46:10 +00:00
Peter Maydell
4800819827 * More uses of RCU_READ_LOCK_GUARD (Dave, myself)
* QOM doc improvments (Greg)
 * Cleanups from the Meson conversion (Marc-André)
 * Support for multiple -accel options (myself)
 * Many x86 machine cleanup (Philippe, myself)
 * tests/migration-test cleanup (Juan)
 * PC machine removal and next round of deprecation (Thomas)
 * kernel-doc integration (Peter, myself)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* More uses of RCU_READ_LOCK_GUARD (Dave, myself)
* QOM doc improvments (Greg)
* Cleanups from the Meson conversion (Marc-André)
* Support for multiple -accel options (myself)
* Many x86 machine cleanup (Philippe, myself)
* tests/migration-test cleanup (Juan)
* PC machine removal and next round of deprecation (Thomas)
* kernel-doc integration (Peter, myself)

# gpg: Signature made Wed 18 Dec 2019 01:35:02 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (87 commits)
  vga: cleanup mapping of VRAM for non-PCI VGA
  hw/display: Remove "rombar" hack from vga-pci and vmware_vga
  hw/pci: Remove the "command_serr_enable" property
  hw/audio: Remove the "use_broken_id" hack from the AC97 device
  hw/i386: Remove the deprecated machines 0.12 up to 0.15
  hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge
  hw/pci-host/i440fx: Extract the IGD passthrough host bridge device
  hw/pci-host/i440fx: Use definitions instead of magic values
  hw/pci-host/i440fx: Use size_t to iterate over ARRAY_SIZE()
  hw/pci-host/i440fx: Extract PCII440FXState to "hw/pci-host/i440fx.h"
  hw/pci-host/i440fx: Correct the header description
  Fix some comment spelling errors.
  target/i386: remove unused pci-assign codes
  WHPX: refactor load library
  migration: check length directly to make sure the range is aligned
  memory: include MemoryListener documentation and some missing function parameters
  docs: add memory API reference
  memory.h: Silence kernel-doc complaints
  docs: Create bitops.rst as example of kernel-docs
  bitops.h: Silence kernel-doc complaints
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-12-20 11:20:25 +00:00
Han Han
8937a39da2 Revert "qemu-options.hx: Update for reboot-timeout parameter"
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>
2019-12-18 12:35:44 +01:00
Markus Armbruster
deda497b84 error: Fix -msg timestamp default
-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>
2019-12-18 08:36:15 +01:00
Paolo Bonzini
11bc4a13d1 kvm: convert "-machine kernel_irqchip" to an accelerator property
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:32:46 +01:00
Paolo Bonzini
23b0898e44 kvm: convert "-machine kvm_shadow_mem" to an accelerator property
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:32:27 +01:00
Paolo Bonzini
46472d8232 xen: convert "-machine igd-passthru" to an accelerator property
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>
2019-12-17 19:32:27 +01:00
Paolo Bonzini
fe17413247 tcg: add "-accel tcg,tb-size" and deprecate "-tb-size"
-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>
2019-12-17 19:32:27 +01:00
Thomas Huth
1d4ffe8dc7 Remove the core bluetooth code
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>
2019-12-17 09:01:14 +01:00
Peter Maydell
084a398bf8 Pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

# gpg: Signature made Fri 13 Dec 2019 14:32:11 GMT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  iothread: document -object iothread on man page
  virtio-blk: advertise F_WCE (F_FLUSH) if F_CONFIG_WCE is advertised

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-12-13 18:14:07 +00:00
Stefan Hajnoczi
86d2a49b41 iothread: document -object iothread on man page
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>
2019-12-13 11:24:07 +00:00
Thomas Huth
b3e2bb9458 virtfs: Remove the deprecated "-virtfs_synth" option
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>
2019-12-09 18:00:35 +01:00
Peter Maydell
d0f90e1423 audio: documentation update
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Merge remote-tracking branch 'remotes/kraxel/tags/audio-20191106-pull-request' into staging

audio: documentation update

# gpg: Signature made Wed 06 Nov 2019 08:24:44 GMT
# 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-20191106-pull-request:
  audio: add -audiodev pa,in|out.latency= to documentation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-07 09:21:52 +00:00
Stefan Hajnoczi
14d4f01191 audio: add -audiodev pa,in|out.latency= to documentation
The "latency" parameter wasn't covered by the documentation.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20191004125641.24383-1-stefanha@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-11-06 08:08:10 +01:00
Thomas Huth
88b40c683f qemu-options: Rework the help text of the '-display' option
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>
2019-11-05 12:10:42 +01:00
Peter Maydell
68d8ef4ec5 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
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 =UXR/
 -----END PGP SIGNATURE-----

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>
2019-10-30 14:10:32 +00:00
Peter Maydell
f724de8dde Add Macintosh Quadra 800 machine in hw/m68k
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 =HLjK
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier/tags/q800-branch-pull-request' into staging

Add Macintosh Quadra 800 machine in hw/m68k

# gpg: Signature made Mon 28 Oct 2019 18:14:25 GMT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/q800-branch-pull-request:
  BootLinuxConsoleTest: Test the Quadra 800
  hw/m68k: define Macintosh Quadra 800
  hw/m68k: add a dummy SWIM floppy controller
  hw/m68k: add Nubus macfb video card
  hw/m68k: add Nubus support
  hw/m68k: implement ADB bus support for via
  hw/m68k: add VIA support
  dp8393x: manage big endian bus
  esp: add pseudo-DMA as used by Macintosh
  esp: move get_cmd() post-DMA code to get_cmd_cb()
  esp: move handle_ti_cmd() cleanup code to esp_do_dma().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-29 16:27:48 +00:00
Laurent Vivier
8ac919a065 hw/m68k: add Nubus macfb video card
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>
2019-10-28 19:06:49 +01:00
Lluís Vilanova
42229a7539 vl: support -plugin option
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
[ cota: s/instrument/plugin ]
Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-10-28 15:12:38 +00:00
Peter Maydell
03bf012e52 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
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 iSKyGWA7nn+8VQi+1ufh
 =JZpU
 -----END PGP SIGNATURE-----

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>
2019-10-25 14:59:53 +01:00
Kevin Wolf
c9b749d7bc doc: Describe missing generic -blockdev options
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>
2019-10-25 15:15:01 +02:00
Han Han
bbd9e6985f qemu-options.hx: Update for reboot-timeout parameter
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>
2019-10-24 19:22:47 +02:00
Kővágó, Zoltán
8efac073a5 audio: add mixing-engine option (documentation)
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>
2019-10-18 08:14:05 +02:00
Antonios Motakis
1a6ed33cc5 9p: Added virtfs option 'multidevs=remap|forbid|warn'
'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>
2019-10-10 11:36:05 +02:00
Peter Maydell
860d9048c7 audio: documentation fixes.
audio: new backend api (first part of the surround sound patch series).
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 Version: GnuPG v2.0.22 (GNU/Linux)
 
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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>
2019-09-24 13:51:51 +01:00
Stefan Hajnoczi
dfc5434384 audio: fix ALSA period-length typo in documentation
Fixes: f0b3d81152 ("audio: -audiodev command line option: documentation")
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20190918095335.7646-4-stefanha@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-09-23 12:16:35 +02:00
Stefan Hajnoczi
8624725ba5 audio: fix buffer-length typo in documentation
Fixes: f0b3d81152 ("audio: -audiodev command line option: documentation")
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20190918095335.7646-2-stefanha@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-09-23 12:16:35 +02:00
Peter Maydell
e446ed5a29 ipmi: Some bug fixes and new interfaces
Some bug fixes for the watchdog and hopeful the BT tests.
 
 Change the IPMI UUID handling to give the user the ability to set it or
 not have it.
 
 Add a PCI interface.
 
 Add an SMBus interfaces.
 
 -corey
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Merge remote-tracking branch 'remotes/cminyard/tags/ipmi-for-release-2019-09-20' into staging

ipmi: Some bug fixes and new interfaces

Some bug fixes for the watchdog and hopeful the BT tests.

Change the IPMI UUID handling to give the user the ability to set it or
not have it.

Add a PCI interface.

Add an SMBus interfaces.

-corey

# gpg: Signature made Fri 20 Sep 2019 20:11:21 BST
# gpg:                using RSA key FD0D5CE67CE0F59A6688268661F38C90919BFF81
# gpg: Good signature from "Corey Minyard <cminyard@mvista.com>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@acm.org>" [unknown]
# gpg:                 aka "Corey Minyard <corey@minyard.net>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@mvista.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FD0D 5CE6 7CE0 F59A 6688  2686 61F3 8C90 919B FF81

* remotes/cminyard/tags/ipmi-for-release-2019-09-20:
  pc: Add an SMB0 ACPI device to q35
  ipmi: Fix SSIF ACPI handling to use the right CRS
  acpi: Add i2c serial bus CRS handling
  ipmi: Add an SMBus IPMI interface
  ipmi: Add PCI IPMI interfaces
  smbios:ipmi: Ignore IPMI devices with no fwinfo function
  ipmi: Allow a size value to be passed for I/O space
  ipmi: Split out BT-specific code from ISA BT code
  ipmi: Split out KCS-specific code from ISA KCS code
  ipmi: Add a UUID device property
  qdev: Add a no default uuid property
  tests:ipmi: Fix IPMI BT tests
  ipmi: Generate an interrupt on watchdog pretimeout expiry
  ipmi: Fix the get watchdog command
  ipmi: Fix watchdog NMI handling

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-09-23 10:56:46 +01:00
Corey Minyard
7b0cd78bf7 ipmi: Add a UUID device property
Using the UUID that qemu generates probably isn't the best thing
to do, allow it to be passed in via properties, and use QemuUUID
for the type.

If the UUID is not set, return an unsupported command error.  This
way we are not providing an all-zero (or randomly generated) GUID
to the IPMI user.  This lets the host fall back to the other
method of using the get device id command to determind the BMC
being accessed.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Cédric Le Goater <clg@kaod.org>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
2019-09-20 14:08:10 -05:00
Thomas Huth
976e8c5414 Replace '-machine accel=xyz' with '-accel xyz'
We've got a separate option to configure the accelerator nowadays, which
is shorter to type and the preferred way of specifying an accelerator.
Use it in the source and examples to show that it is the favored option.
(However, do not touch the places yet which also specify other machine
options or multiple accelerators - these are currently still better
handled with one single "-machine" statement instead)

Signed-off-by: Thomas Huth <thuth@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20190904052739.22123-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-09-19 12:01:48 +02:00
Thomas Huth
664785acff qemu-doc: Do not hard-code the name of the QEMU binary
In our documentation, we use a mix of "$QEMU", "qemu-system-i386" and
"qemu-system-x86_64" when we give examples to the users how to run
QEMU. Some more consistency would be good here. Also some distributions
use different names for the QEMU binary (e.g. "qemu-kvm" in RHEL), so
providing more flexibility here would also be good. Thus let's define
some variables for the names of the QEMU command and use those in the
documentation instead: @value{qemu_system} for generic examples, and
@value{qemu_system_x86} for examples that only work with the x86
binaries.

Message-Id: <20190828093447.12441-1-thuth@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-09-05 13:18:52 +02:00
Laurent Vivier
0198c2621a virtio-rng: change default backend to rng-builtin
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20190820160615.14616-4-lvivier@redhat.com>
2019-09-04 06:32:51 -04:00
Laurent Vivier
6c4e9d487f rng-builtin: add an RNG backend that uses qemu_guest_getrandom()
Add a new RNG backend using QEMU builtin getrandom function.

It can be created and used with something like:

    ... -object rng-builtin,id=rng0 -device virtio-rng,rng=rng0 ...

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20190820160615.14616-2-lvivier@redhat.com>
2019-09-04 06:32:51 -04:00
Peter Maydell
4a71d0af7b usb: bugfixes and minor improvements.
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Merge remote-tracking branch 'remotes/kraxel/tags/usb-20190822-pull-request' into staging

usb: bugfixes and minor improvements.

# gpg: Signature made Thu 22 Aug 2019 07:52:32 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/usb-20190822-pull-request:
  ehci: fix queue->dev null ptr dereference
  usb: reword -usb command-line option and mention xHCI
  xhci: Add No Op Command
  usb-redir: merge interrupt packets
  usbredir: fix buffer-overflow on vmload

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-08-22 15:10:51 +01:00
Stefan Hajnoczi
73f46fef74 usb: reword -usb command-line option and mention xHCI
The -usb section of the man page is not very clear on what exactly -usb
does and fails to mention xHCI as a modern alternative (-device
nec-usb-xhci).

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190815141428.29080-1-stefanha@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-21 10:42:36 +02:00
Kővágó, Zoltán
f0b9f36d71 audio: add audiodev property to vnc and wav_capture
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 8cbc9e865bbf40850c14340fc0549e6ac2d5fe9c.1566168923.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-21 09:13:37 +02:00