Commit Graph

72592 Commits

Author SHA1 Message Date
Markus Armbruster
e6c42b96b9 qapi: Split up scripts/qapi/common.py
The QAPI code generator clocks in at some 3100 SLOC in 8 source files.
Almost 60% of the code is in qapi/common.py.  Split it into more
focused modules:

* Move QAPISchemaPragma and QAPISourceInfo to qapi/source.py.

* Move QAPIError and its sub-classes to qapi/error.py.

* Move QAPISchemaParser and QAPIDoc to parser.py.  Use the opportunity
  to put QAPISchemaParser first.

* Move check_expr() & friends to qapi/expr.py.  Use the opportunity to
  put the code into a more sensible order.

* Move QAPISchema & friends to qapi/schema.py

* Move QAPIGen and its sub-classes, ifcontext,
  QAPISchemaModularCVisitor, and QAPISchemaModularCVisitor to qapi/gen.py

* Delete camel_case(), it's unused since commit e98859a9b9 "qapi:
  Clean up after recent conversions to QAPISchemaVisitor"

A number of helper functions remain in qapi/common.py.  I considered
moving the code generator helpers to qapi/gen.py, but decided not to.
Perhaps we should rewrite them as methods of QAPIGen some day.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20191018074345.24034-7-armbru@redhat.com>
[Add "# -*- coding: utf-8 -*-" lines]
2019-10-22 13:53:55 +02:00
Markus Armbruster
61bfb2e1a4 qapi: Move gen_enum(), gen_enum_lookup() back to qapi/types.py
The next commit will split up qapi/common.py.  gen_enum() needs
QAPISchemaEnumMember, and that's in the way.  Move it to qapi/types.py
along with its buddy gen_enum_lookup().

Permit me a short a digression on history: how did gen_enum() end up
in qapi/common.py?  Commit 21cd70dfc1 "qapi script: add event support"
duplicated qapi-types.py's gen_enum() and gen_enum_lookup() in
qapi-event.py.  Simply importing them would have been cleaner, but
wasn't possible as qapi-types.py was a program, not a module.  Commit
efd2eaa6c2 "qapi: De-duplicate enum code generation" de-duplicated by
moving them to qapi.py, which was a module.

Since then, program qapi-types.py has morphed into module types.py.
It's where gen_enum() and gen_enum_lookup() started, and where they
belong.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20191018074345.24034-6-armbru@redhat.com>
2019-10-22 09:26:12 +02:00
Markus Armbruster
f01338cce6 qapi: Speed up frontend tests
"make check-qapi-schema" takes around 10s user + system time for me.
With -j, it takes a bit over 3s real time.  We have worse tests.  It's
still annoying when you work on the QAPI generator.

Some 1.4s user + system time is consumed by make figuring out what to
do, measured by making a target that does nothing.  There's nothing I
can do about that right now.  But let's see what we can do about the
other 8s.

Almost 7s are spent running test-qapi.py for every test case, the rest
normalizing and diffing test-qapi.py output.  We have 190 test cases.

If I downgrade to python2, it's 4.5s, but python2 is a goner.

Hacking up test-qapi.py to exit(0) without doing anything makes it
only marginally faster.  The problem is Python startup overhead.

Our configure puts -B into $(PYTHON).  Running without -B is faster:
4.4s.

We could improve the Makefile to run test cases only when the test
case or the generator changed.  But I'm after improvement in the case
where the generator changed.

test-qapi.py is designed to be the simplest possible building block
for a shell script to do the complete job (it's actually a Makefile,
not a shell script; no real difference).  Python is just not meant for
that.  It's for bigger blocks.

Move the post-processing and diffing into test-qapi.py, and make it
capable of testing multiple schema files.  Set executable bits while
there.

Running it once per test case now takes slightly longer than 8s.  But
running it once for all of them takes under 0.2s.

Messing with the Makefile to run it only on the tests that need
retesting is clearly not worth the bother.

Expected error output changes because the new normalization strips off
$(SRCDIR)/tests/qapi-schema/ instead of just $(SRCDIR)/.

The .exit files go away, because there is no exit status to test
anymore.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20191018074345.24034-5-armbru@redhat.com>
2019-10-22 09:26:12 +02:00
Markus Armbruster
0002b557b5 qapi: Eliminate accidental global frontend state
The frontend can't be run more than once due to its global state.
A future commit will want to do that.

The only global frontend state remaining is accidental:
QAPISchemaParser.__init__()'s parameter previously_included=[].
Python evaluates the default once, at definition time.  Any
modifications to it are visible in subsequent calls.  Well-known
Python trap.  Change the default to None and replace it by the real
default in the function body.  Use the opportunity to convert
previously_included to a set.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20191018074345.24034-4-armbru@redhat.com>
2019-10-22 09:26:12 +02:00
Markus Armbruster
2a7bbedd77 qapi: Store pragma state in QAPISourceInfo, not global state
The frontend can't be run more than once due to its global state.
A future commit will want to do that.

Recent commit "qapi: Move context-sensitive checking to the proper
place" got rid of many global variables already, but pragma state is
still stored in global variables (that's why a pragma directive's
scope is the complete schema).

Move the pragma state to QAPISourceInfo.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20191018074345.24034-3-armbru@redhat.com>
2019-10-22 09:26:12 +02:00
Markus Armbruster
f3d4aa5add qapi: Don't suppress doc generation without pragma doc-required
Commit bc52d03ff5 "qapi: Make doc comments optional where we don't
need them" made scripts/qapi2texi.py fail[*] unless the schema had
pragma 'doc-required': true.  The stated reason was inability to cope
with incomplete documentation.

When commit fb0bc835e5 "qapi-gen: New common driver for code and doc
generators" folded scripts/qapi2texi.py into scripts/qapi-gen.py, it
turned the failure into silent suppression.

The doc generator can cope with incomplete documentation now.  I don't
know since when, or what the problem was, or even whether it ever
existed.

Drop the silent suppression.

[*] The fail part was broken, fixed in commit e8ba07ea9a.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20191018074345.24034-2-armbru@redhat.com>
2019-10-22 09:26:12 +02:00
Peter Maydell
e9d4246192 audio: bugfixes, pa connection and stream naming.
audio: 5.1/7.1 support for alsa, pa and usb-audio.
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Merge remote-tracking branch 'remotes/kraxel/tags/audio-20191018-pull-request' into staging

audio: bugfixes, pa connection and stream naming.
audio: 5.1/7.1 support for alsa, pa and usb-audio.

# gpg: Signature made Fri 18 Oct 2019 08:41:26 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-20191018-pull-request:
  paaudio: fix channel order for usb-audio 5.1 and 7.1 streams
  usbaudio: change playback counters to 64 bit
  usb-audio: support more than two channels of audio
  usb-audio: do not count on avail bytes actually available
  audio: basic support for multichannel audio
  audio: replace shift in audio_pcm_info with bytes_per_frame
  audio: support more than two channels in volume setting
  paaudio: get/put_buffer functions
  audio: make mixeng optional
  audio: add mixing-engine option (documentation)
  audio: paaudio: ability to specify stream name
  audio: paaudio: fix connection and stream name
  audio: fix parameter dereference before NULL check

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-18 14:13:11 +01:00
Peter Maydell
ca32646d41 pull request
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Merge remote-tracking branch 'remotes/jnsnow/tags/bitmaps-pull-request' into staging

pull request

# gpg: Signature made Thu 17 Oct 2019 22:54:14 BST
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jnsnow/tags/bitmaps-pull-request:
  dirty-bitmaps: remove deprecated autoload parameter
  MAINTAINERS: Add Vladimir as a reviewer for bitmaps
  qcow2-bitmap: move bitmap reopen-rw code to qcow2_reopen_commit
  block/qcow2-bitmap: fix and improve qcow2_reopen_bitmaps_rw
  iotests: add test 260 to check bitmap life after snapshot + commit
  block/qcow2-bitmap: do not remove bitmaps on reopen-ro
  block/qcow2-bitmap: drop qcow2_reopen_bitmaps_rw_hint()
  block/qcow2-bitmap: get rid of bdrv_has_changed_persistent_bitmaps
  iotests: add test-case to 165 to test reopening qcow2 bitmaps to RW
  block: reverse order for reopen commits
  block: switch reopen queue from QSIMPLEQ to QTAILQ
  block/dirty-bitmap: refactor bdrv_dirty_bitmap_next
  block/dirty-bitmap: drop BdrvDirtyBitmap.mutex
  block/dirty-bitmap: add bs link
  block/dirty-bitmap: drop meta
  block/qcow2: proper locking on bitmap add/remove paths
  block/dirty-bitmap: return int from bdrv_remove_persistent_dirty_bitmap
  block: move bdrv_can_store_new_dirty_bitmap to block/dirty-bitmap.c
  util/hbitmap: strict hbitmap_reset

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-18 12:53:52 +01:00
Peter Maydell
51cd65b18f ui: bugfixes for cocoa, curses and input-barrier.
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Merge remote-tracking branch 'remotes/kraxel/tags/ui-20191018-pull-request' into staging

ui: bugfixes for cocoa, curses and input-barrier.

# gpg: Signature made Fri 18 Oct 2019 11:16:53 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/ui-20191018-pull-request:
  ui: fix keymap file search in input-barrier object
  curses: correctly pass the color pair to setcchar()
  curses: use the bit mask constants provided by curses
  ui: Fix hanging up Cocoa display on macOS 10.15 (Catalina)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-18 11:52:05 +01:00
Laurent Vivier
707f75070a ui: fix keymap file search in input-barrier object
If we try to start QEMU with "-k en-us", qemu prints a message and exits
with:

    qemu-system-i386: could not read keymap file: 'en-us'

It's because this function is called way too early, before
qemu_add_data_dir() is called, and so qemu_find_file() fails.

To fix that, move init_keyboard_layout() from the class init function to the
instance init function.

Reported-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 20190923220658.27007-1-laurent@vivier.eu
Fixes: 6105683da3 ("ui: add an embedded Barrier client")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 10:40:46 +02:00
Matthew Kilgore
30f5a9dd7a curses: correctly pass the color pair to setcchar()
The current code does not correctly pass the color pair information to
setcchar(), it instead always passes zero. This results in the curses
output always being in white on black.

This patch fixes this by using PAIR_NUMBER() to retrieve the color pair
number from the chtype value, and then passes that value as an argument
to setcchar().

Signed-off-by: Matthew Kilgore <mattkilgore12@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Tested-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Message-id: 20191004035338.25601-3-mattkilgore12@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 10:39:12 +02:00
Matthew Kilgore
cd54ea456d curses: use the bit mask constants provided by curses
The curses API provides the A_ATTRIBUTES and A_CHARTEXT bit masks for
getting the attributes and character parts of a chtype, respectively. We
should use provided constants instead of using 0xff.

Signed-off-by: Matthew Kilgore <mattkilgore12@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Tested-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Message-id: 20191004035338.25601-2-mattkilgore12@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 10:39:12 +02:00
Hikaru Nishida
dff742ad27 ui: Fix hanging up Cocoa display on macOS 10.15 (Catalina)
macOS API documentation says that before applicationDidFinishLaunching
is called, any events will not be processed. However, some events are
fired before it is called in macOS Catalina. This causes deadlock of
iothread_lock in handleEvent while it will be released after the
app_started_sem is posted.
This patch avoids processing events before the app_started_sem is
posted to prevent this deadlock.

Buglink: https://bugs.launchpad.net/qemu/+bug/1847906
Signed-off-by: Hikaru Nishida <hikarupsp@gmail.com>
Message-id: 20191015010734.85229-1-hikarupsp@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 10:35:31 +02:00
Kővágó, Zoltán
0cf13e367a paaudio: fix channel order for usb-audio 5.1 and 7.1 streams
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 2900e462d27bd73277ae083d037c32b1b4451ee2.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +02:00
Kővágó, Zoltán
670777a915 usbaudio: change playback counters to 64 bit
With stereo playback, they need about 375 minutes of continuous audio
playback to overflow, which is usually not a problem (as stopping and
later resuming playback resets the counters).  But with 7.1 audio, they
only need about 95 minutes to overflow.

After the overflow, the buf->prod % USBAUDIO_PACKET_SIZE(channels)
assertion no longer holds true, which will result in overflowing the
buffer.  With 64 bit variables, it would take about 762000 years to
overflow.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: ff866985ed369f1e18ea7c70da6a7fce8e241deb.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +02:00
Kővágó, Zoltán
3e44607e93 usb-audio: support more than two channels of audio
This commit adds support for 5.1 and 7.1 audio playback.  This commit
adds a new property to usb-audio:

* multi=on|off
  Whether to enable the 5.1 and 7.1 audio support.  When off (default)
  it continues to emulate the old stereo-only device.  When on, it
  emulates a slightly different audio device that supports 5.1 and 7.1
  audio.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 98e96606228afa907fa238eac26573d5af63434a.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +02:00
Kővágó, Zoltán
2c6a740f6b usb-audio: do not count on avail bytes actually available
This assumption is no longer true when mixeng is turned off.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: d63f4d39a0ee7a2e4e7e4a2eb005ba79120eaf1d.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +02:00
Kővágó, Zoltán
b5c7db3eef audio: basic support for multichannel audio
Which currently only means removing some checks.  Old code won't require
more than two channels, but new code will need it.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 7e53be1f97e939ed3bb729ef39e76b775643118a.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +02:00
Kővágó, Zoltán
2b9cce8c8c audio: replace shift in audio_pcm_info with bytes_per_frame
The bit shifting trick worked because the number of bytes per frame was
always a power-of-two (since QEMU only supports mono, stereo and 8, 16
and 32 bit samples).  But if we want to add support for surround sound,
this no longer holds true.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 1351fd9bcce0ff20d81850c5292722194329de02.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +02:00
Kővágó, Zoltán
cecc1e79bf audio: support more than two channels in volume setting
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 5d3dd2ee3baaa62805e79c3901abb7415ae32461.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +02:00
Kővágó, Zoltán
337e8de6fb paaudio: get/put_buffer functions
This lets us avoid some buffer copying when using mixeng.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: d03d30138b9b5a9681cc90cbfbfec0a197cac88c.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +02:00
Kővágó, Zoltán
1930616b98 audio: make mixeng optional
Implementation of the previously added mixing-engine option.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: c05bc258889ed289e8ee1bdbcc5e84174ec221e7.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 08:14:05 +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
Kővágó, Zoltán
f47dffe8d1 audio: paaudio: ability to specify stream name
This can be used to identify stream in tools like pavucontrol when one
creates multiple -audiodevs or runs multiple qemu instances.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-id: 2d6e337c474ac84172d0809e6959c26b21d48120.1568157545.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 07:50:53 +02:00
Kővágó, Zoltán
3443ad4ed6 audio: paaudio: fix connection and stream name
Connection name was previously erroneously set to the server socket
path, while connection names were simply "qemu".  After this patch, the
connection name will be the vm name (falling back to "qemu" if not
specified), while stream names will be the audiodev's id.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 3d139426031a400a68d440608ba5e43f0e116cd8.1568157545.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 07:50:53 +02:00
Kővágó, Zoltán
d1670b20dc audio: fix parameter dereference before NULL check
This should fix Coverity issues CID 1405305 and 1405301.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 0eadcc88b8421bb86ce2d68ac70517f920c3ad6c.1568157545.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18 07:50:53 +02:00
John Snow
3264ffced3 dirty-bitmaps: remove deprecated autoload parameter
This parameter has been deprecated since 2.12.0 and is eligible for
removal. Remove this parameter as it is actually completely ignored;
let's not give false hope.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191002232411.29968-1-jsnow@redhat.com
2019-10-17 17:53:28 -04:00
John Snow
4a189fdfaf MAINTAINERS: Add Vladimir as a reviewer for bitmaps
I already try to make sure all bitmaps patches have been reviewed by both
Red Hat and Virtuozzo anyway, so this formalizes the arrangement.

Fam meanwhile is no longer as active, so I am removing him as a co-maintainer
simply to reflect the current practice.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191005194448.16629-2-jsnow@redhat.com
2019-10-17 17:53:28 -04:00
Vladimir Sementsov-Ogievskiy
4dd09f6223 qcow2-bitmap: move bitmap reopen-rw code to qcow2_reopen_commit
The only reason I can imagine for this strange code at the very-end of
bdrv_reopen_commit is the fact that bs->read_only updated after
calling drv->bdrv_reopen_commit in bdrv_reopen_commit. And in the same
time, prior to previous commit, qcow2_reopen_bitmaps_rw did a wrong
check for being writable, when actually it only need writable file
child not self.

So, as it's fixed, let's move things to correct place.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Acked-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190927122355.7344-10-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:53:28 -04:00
Vladimir Sementsov-Ogievskiy
f6333cbf8b block/qcow2-bitmap: fix and improve qcow2_reopen_bitmaps_rw
- Correct check for write access to file child, and in correct place
  (only if we want to write).
- Support reopen rw -> rw (which will be used in following commit),
  for example, !bdrv_dirty_bitmap_readonly() is not a corruption if
  bitmap is marked IN_USE in the image.
- Consider unexpected bitmap as a corruption and check other
  combinations of in-image and in-RAM bitmaps.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190927122355.7344-9-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:53:28 -04:00
Vladimir Sementsov-Ogievskiy
5d9388d4b2 iotests: add test 260 to check bitmap life after snapshot + commit
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190927122355.7344-8-vsementsov@virtuozzo.com
[Maintainer edit: removed 260 from auto group per Peter Maydell. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
644ddbb754 block/qcow2-bitmap: do not remove bitmaps on reopen-ro
qcow2_reopen_bitmaps_ro wants to store bitmaps and then mark them all
readonly. But the latter don't work, as
qcow2_store_persistent_dirty_bitmaps removes bitmaps after storing.
It's OK for inactivation but bad idea for reopen-ro. And this leads to
the following bug:

Assume we have persistent bitmap 'bitmap0'.
Create external snapshot
  bitmap0 is stored and therefore removed
Commit snapshot
  now we have no bitmaps
Do some writes from guest (*)
  they are not marked in bitmap
Shutdown
Start
  bitmap0 is loaded as valid, but it is actually broken! It misses
  writes (*)
Incremental backup
  it will be inconsistent

So, let's stop removing bitmaps on reopen-ro. But don't rejoice:
reopening bitmaps to rw is broken too, so the whole scenario will not
work after this patch and we can't enable corresponding test cases in
260 iotests still. Reopening bitmaps rw will be fixed in the following
patches.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190927122355.7344-7-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
bd429a884c block/qcow2-bitmap: drop qcow2_reopen_bitmaps_rw_hint()
The function is unused, drop it.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190927122355.7344-6-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
f88676c149 block/qcow2-bitmap: get rid of bdrv_has_changed_persistent_bitmaps
Firstly, no reason to optimize failure path. Then, function name is
ambiguous: it checks for readonly and similar things, but someone may
think that it will ignore normal bitmaps which was just unchanged, and
this is in bad relation with the fact that we should drop IN_USE flag
for unchanged bitmaps in the image.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190927122355.7344-5-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
5752f89a78 iotests: add test-case to 165 to test reopening qcow2 bitmaps to RW
Reopening bitmaps to RW was broken prior to previous commit. Check that
it works now.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190927122355.7344-4-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
fcd6a4f42d block: reverse order for reopen commits
It's needed to fix reopening qcow2 with bitmaps to RW. Currently it
can't work, as qcow2 needs write access to file child, to mark bitmaps
in-image with IN_USE flag. But usually children goes after parents in
reopen queue and file child is still RO on qcow2 reopen commit. Reverse
reopen order to fix it.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Max Reitz <mreitz@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
Message-id: 20190927122355.7344-3-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
859443b0fb block: switch reopen queue from QSIMPLEQ to QTAILQ
We'll need reverse-foreach in the following commit, QTAILQ support it,
so move to QTAILQ.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190927122355.7344-2-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
ef9041a7b8 block/dirty-bitmap: refactor bdrv_dirty_bitmap_next
bdrv_dirty_bitmap_next is always used in same pattern. So, split it
into _next and _first, instead of combining two functions into one and
add FOR_EACH_DIRTY_BITMAP macro.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190916141911.5255-5-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
1e63830160 block/dirty-bitmap: drop BdrvDirtyBitmap.mutex
mutex field is just a pointer to bs->dirty_bitmap_mutex, so no needs
to store it in BdrvDirtyBitmap when we have bs pointer in it (since
previous patch).

Drop mutex field. Constantly use bdrv_dirty_bitmaps_lock/unlock in
block/dirty-bitmap.c to make it more obvious that it's not per-bitmap
lock. Still, for simplicity, leave bdrv_dirty_bitmap_lock/unlock
functions as an external API.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190916141911.5255-4-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
5deb6cbd1f block/dirty-bitmap: add bs link
Add bs field to BdrvDirtyBitmap structure. Drop BlockDriverState
parameter from bitmap APIs where possible.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190916141911.5255-3-vsementsov@virtuozzo.com
[Rebased on top of block-copy. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
767db3aad8 block/dirty-bitmap: drop meta
Drop meta bitmaps, as they are unused.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190916141911.5255-2-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
d2c3080e41 block/qcow2: proper locking on bitmap add/remove paths
qmp_block_dirty_bitmap_add and do_block_dirty_bitmap_remove do acquire
aio context since 0a6c86d024. But this is not enough: we also must
lock qcow2 mutex when access in-image metadata. Especially it concerns
freeing qcow2 clusters.

To achieve this, move qcow2_can_store_new_dirty_bitmap and
qcow2_remove_persistent_dirty_bitmap to coroutine context.

Since we work in coroutines in correct aio context, we don't need
context acquiring in blockdev.c anymore, drop it.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190920082543.23444-4-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
b56a1e3175 block/dirty-bitmap: return int from bdrv_remove_persistent_dirty_bitmap
It's more comfortable to not deal with local_err.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190920082543.23444-3-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
85cc8a4f6b block: move bdrv_can_store_new_dirty_bitmap to block/dirty-bitmap.c
block/dirty-bitmap.c seems to be more appropriate for it and
bdrv_remove_persistent_dirty_bitmap already in it.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190920082543.23444-2-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Vladimir Sementsov-Ogievskiy
48557b1383 util/hbitmap: strict hbitmap_reset
hbitmap_reset has an unobvious property: it rounds requested region up.
It may provoke bugs, like in recently fixed write-blocking mode of
mirror: user calls reset on unaligned region, not keeping in mind that
there are possible unrelated dirty bytes, covered by rounded-up region
and information of this unrelated "dirtiness" will be lost.

Make hbitmap_reset strict: assert that arguments are aligned, allowing
only one exception when @start + @count == hb->orig_size. It's needed
to comfort users of hbitmap_next_dirty_area, which cares about
hb->orig_size.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20190806152611.280389-1-vsementsov@virtuozzo.com>
[Maintainer edit: Max's suggestions from on-list. --js]
[Maintainer edit: Eric's suggestion for aligned macro. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17 17:02:32 -04:00
Peter Maydell
d52932ed34 x86 and machine queue, 2019-10-15
Features:
 * Snowridge-v2 (no MPX) CPU model (Xiaoyao Li)
 
 Bug fixes:
 * cpu-plug-test: fix device_add for pc/q35 machines (Igor Mammedov)
 * Fix legacy guest with xsave panic on older Linux kernel (Bingsong Si)
 * Omit all-zeroes entries from KVM CPUID table (Eduardo Habkost)
 
 Cleanups:
 * Convert reset handlers to DeviceReset (Philippe Mathieu-Daudé)
 * MachineClass::auto_enable_numa field (Tao Xu)
 * target/i386/cpu.h cleanups (Tao Xu)
 * memory_device_get_free_addr() cleanups (Wei Yang)
 -----BEGIN PGP SIGNATURE-----
 
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 kFS3eTDpIHb6N9nA70YVjRulYloI/SFKPnRUtge17QIelfuZiEhNUOZlkOld5QCE
 8Rgn9fw9tqo/pyQ=
 =sx0R
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

x86 and machine queue, 2019-10-15

Features:
* Snowridge-v2 (no MPX) CPU model (Xiaoyao Li)

Bug fixes:
* cpu-plug-test: fix device_add for pc/q35 machines (Igor Mammedov)
* Fix legacy guest with xsave panic on older Linux kernel (Bingsong Si)
* Omit all-zeroes entries from KVM CPUID table (Eduardo Habkost)

Cleanups:
* Convert reset handlers to DeviceReset (Philippe Mathieu-Daudé)
* MachineClass::auto_enable_numa field (Tao Xu)
* target/i386/cpu.h cleanups (Tao Xu)
* memory_device_get_free_addr() cleanups (Wei Yang)

# gpg: Signature made Tue 15 Oct 2019 22:35:43 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request:
  target/i386: Add Snowridge-v2 (no MPX) CPU model
  i386: Omit all-zeroes entries from KVM CPUID table
  i386: Fix legacy guest with xsave panic on host kvm without update cpuid.
  target/i386: drop the duplicated definition of cpuid AVX512_VBMI macro
  target/i386: clean up comments over 80 chars per line
  memory-device: break the loop if tmp exceed the hinted range
  memory-device: not necessary to use goto for the last check
  hw/misc/vmcoreinfo: Add comment about reset handler
  hw/input/lm832x: Convert reset handler to DeviceReset
  hw/isa/vt82c686: Convert reset handler to DeviceReset
  hw/ide/via82c: Convert reset handler to DeviceReset
  hw/ide/sii3112: Convert reset handler to DeviceReset
  hw/ide/piix: Convert reset handler to DeviceReset
  hw/isa/piix4: Convert reset handler to DeviceReset
  hw/acpi/piix4: Convert reset handler to DeviceReset
  numa: Introduce MachineClass::auto_enable_numa for implicit NUMA node
  tests: cpu-plug-test: fix device_add for pc/q35 machines
  tests: add qtest_qmp_device_add_qdict() helper

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-17 18:16:55 +01:00
Peter Maydell
f22f553eff Host vector support for tcg/ppc.
Fix thread=single cpu kicking.
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 qLAg7o9u2FUGxDo2tPyFSTpElvuf7XoNROQfvvSLEPCnhp3Xqt5mXRFxXFEnAsv1
 RFHsyg==
 =pW3Z
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20191013' into staging

Host vector support for tcg/ppc.
Fix thread=single cpu kicking.

# gpg: Signature made Mon 14 Oct 2019 15:11:55 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20191013: (23 commits)
  cpus: kick all vCPUs when running thread=single
  tcg/ppc: Update vector support for v3.00 dup/dupi
  tcg/ppc: Update vector support for v3.00 load/store
  tcg/ppc: Update vector support for v3.00 Altivec
  tcg/ppc: Update vector support for v2.07 FP
  tcg/ppc: Update vector support for v2.07 VSX
  tcg/ppc: Update vector support for v2.07 Altivec
  tcg/ppc: Update vector support for VSX
  tcg/ppc: Enable Altivec detection
  tcg/ppc: Support vector dup2
  tcg/ppc: Support vector multiply
  tcg/ppc: Support vector shift by immediate
  tcg/ppc: Add support for vector saturated add/subtract
  tcg/ppc: Add support for vector add/subtract
  tcg/ppc: Add support for vector maximum/minimum
  tcg/ppc: Add support for load/store/logic/comparison
  tcg/ppc: Enable tcg backend vector compilation
  tcg/ppc: Replace HAVE_ISEL macro with a variable
  tcg/ppc: Replace HAVE_ISA_2_06
  tcg/ppc: Create TCGPowerISA and have_isa
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-17 16:48:56 +01:00
Peter Maydell
39b68bc4f1 virtio, vhost, acpi: features, fixes, tests
ARM ACPI memory hotplug support +
 tests for new arm/virt ACPI tables.
 
 Virtio fs support (no migration).
 A vhost-user reconnect bugfix.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, vhost, acpi: features, fixes, tests

ARM ACPI memory hotplug support +
tests for new arm/virt ACPI tables.

Virtio fs support (no migration).
A vhost-user reconnect bugfix.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 15 Oct 2019 22:02:19 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  virtio: add vhost-user-fs-pci device
  virtio: add vhost-user-fs base device
  virtio: Add virtio_fs linux headers
  tests/acpi: add expected tables for arm/virt
  tests: document how to update acpi tables
  tests: Add bios tests to arm/virt
  tests: allow empty expected files
  tests/acpi: add empty files
  tests: Update ACPI tables list for upcoming arm/virt tests
  docs/specs: Add ACPI GED documentation
  hw/arm: Use GED for system_powerdown event
  hw/arm: Factor out powerdown notifier from GPIO
  hw/arm/virt-acpi-build: Add PC-DIMM in SRAT
  hw/arm/virt: Enable device memory cold/hot plug with ACPI boot
  hw/arm/virt: Add memory hotplug framework
  hw/acpi: Add ACPI Generic Event Device Support
  hw/acpi: Do not create memory hotplug method when handler is not defined
  hw/acpi: Make ACPI IO address space configurable
  vhost-user: save features if the char dev is closed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-17 15:30:44 +01:00
Eduardo Habkost
6bda415c10 sphinx: Use separate doctree directories for different builders
sphinx-build is buggy when multiple processes are using the same
doctree directory in parallel.  See the 3-year-old Sphinx bug
report at: https://github.com/sphinx-doc/sphinx/issues/2946

Instead of avoiding parallel builds or adding some kind of
locking, I'm using the simplest solution: just using a different
doctree cache for each builder.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20191014150133.14318-1-ehabkost@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-17 12:10:13 +01:00
Xiaoyao Li
69edb0f37a target/i386: Add Snowridge-v2 (no MPX) CPU model
Add new version of Snowridge CPU model that removes MPX feature.

MPX support is being phased out by Intel. GCC has dropped it, Linux kernel
and KVM are also going to do that in the future.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20191012024748.127135-1-xiaoyao.li@intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-10-15 18:34:44 -03:00