Commit Graph

945 Commits

Author SHA1 Message Date
Zhang Chen 5cc8f9eb7a qapi/migration.json: Rename COLOStatus last_mode to last-mode
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Message-Id: <20190402085521.17973-1-chen.zhang@intel.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message rephrased]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-04-02 13:32:15 +02:00
Zhang Chen 966c0d4932 qapi/migration.json: Fix ColoStatus member last_mode's version
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Message-Id: <20190326174510.13303-1-chen.zhang@intel.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Commit message tweaked as per Eric's review]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-04-02 13:30:25 +02:00
Peter Maydell 199f8d94be Miscellaneous patches for 2019-03-26
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Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2019-03-26' into staging

Miscellaneous patches for 2019-03-26

# gpg: Signature made Tue 26 Mar 2019 07:10:23 GMT
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-misc-2019-03-26:
  qapi/qmp-dispatch: fix return value in do_qmp_dispatch
  json: Fix off-by-one assert check in next_state()
  xen-block: Replace qdict_put_obj() by qdict_put() where appropriate
  util/error: Remove an unnecessary NULL check

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-26 09:28:24 +00:00
Vladimir Sementsov-Ogievskiy 413aeacd4b qapi/qmp-dispatch: fix return value in do_qmp_dispatch
There are no harm but just looks weird to return bool in
pointer-returning function. Introduced in 69240fe62d with the whole
failure-checking "if" chunk.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20190325154748.66381-1-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-03-26 08:10:11 +01:00
Peter Maydell 7e9a2137ce Pull request
- Rebase last pull request
 - Drop multifd
 - several other minor fixesLaLaLa
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration-pull-request' into staging

Pull request

- Rebase last pull request
- Drop multifd
- several other minor fixesLaLaLa

# gpg: Signature made Mon 25 Mar 2019 17:46:29 GMT
# gpg:                using RSA key F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [full]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [full]
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* remotes/juanquintela/tags/migration-pull-request:
  migration/postcopy: Update the bandwidth during postcopy
  Migration/colo.c: Make user obtain the last COLO mode info after failover
  Migration/colo.c: Add the necessary checks for colo_do_failover
  Migration/colo.c: Add new COLOExitReason to handle all failover state
  Migration/colo.c: Fix COLO failover status error
  migration/rdma: Check qemu_rdma_init_one_block
  migration: add support for a "tls-authz" migration parameter
  multifd: Drop x-
  multifd: Add some padding
  multifd: Change default packet size
  multifd: Be flexible about packet size
  multifd: Drop x-multifd-page-count parameter
  multifd: Create new next_packet_size field
  multifd: Rename "size" member to pages_alloc
  multifd: Only send pages when packet are not empty

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-25 18:15:43 +00:00
Zhang Chen 5ed0deca41 Migration/colo.c: Make user obtain the last COLO mode info after failover
Add the last_colo_mode to save the status after failover.
This patch can solve the issue that user want to get last colo mode
use query_colo_status after failover.

Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2019-03-25 18:45:46 +01:00
Zhang Chen 3a43ac4757 Migration/colo.c: Add new COLOExitReason to handle all failover state
In this patch we add the processing state for COLOExitReason,
because we have to identify COLO in the failover processing state or
failover error state. In the way, we can handle all the failover state.
We have improved the description of the COLOExitReason by the way.

Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2019-03-25 18:45:30 +01:00
Daniel P. Berrange d2f1d29b95 migration: add support for a "tls-authz" migration parameter
The QEMU instance that runs as the server for the migration data
transport (ie the target QEMU) needs to be able to configure access
control so it can prevent unauthorized clients initiating an incoming
migration. This adds a new 'tls-authz' migration parameter that is used
to provide the QOM ID of a QAuthZ subclass instance that provides the
access control check. This is checked against the x509 certificate
obtained during the TLS handshake.

For example, when starting a QEMU for incoming migration, it is
possible to give an example identity of the source QEMU that is
intended to be connecting later:

  $QEMU \
     -monitor stdio \
     -incoming defer \
     ...other args...

  (qemu) object_add tls-creds-x509,id=tls0,dir=/home/berrange/qemutls,\
             endpoint=server,verify-peer=yes \
  (qemu) object_add authz-simple,id=auth0,identity=CN=laptop.example.com,,\
             O=Example Org,,L=London,,ST=London,,C=GB \
  (qemu) migrate_incoming tcp:localhost:9000

Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2019-03-25 18:13:47 +01:00
Juan Quintela cbfd6c957a multifd: Drop x-
We make it supported from now on.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2019-03-25 18:13:45 +01:00
Juan Quintela efd1a1d640 multifd: Drop x-multifd-page-count parameter
Libvirt don't want to expose (and explain it).  From now on we measure
the number of packages in bytes instead of pages, so it is the same
independently of architecture.  We choose the page size of x86.
Notice that in the following patch we make this variable.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2019-03-25 18:13:41 +01:00
Markus Armbruster 500016e5db trace-events: Shorten file names in comments
We spell out sub/dir/ in sub/dir/trace-events' comments pointing to
source files.  That's because when trace-events got split up, the
comments were moved verbatim.

Delete the sub/dir/ part from these comments.  Gets rid of several
misspellings.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190314180929.27722-3-armbru@redhat.com
Message-Id: <20190314180929.27722-3-armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-03-22 16:18:07 +00:00
Markus Armbruster e68b3baa25 trace-events: Consistently point to docs/devel/tracing.txt
Almost all trace-events point to docs/devel/tracing.txt in a comment
right at the beginning.  Touch up the ones that don't.

[Updated with Markus' new commit description wording.
--Stefan]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190314180929.27722-2-armbru@redhat.com
Message-Id: <20190314180929.27722-2-armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-03-22 16:17:37 +00:00
Vladimir Sementsov-Ogievskiy 1f46ab2e52 qapi: fix block-latency-histogram-set description and examples
There no @device parameter, only the @id one.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-19 15:49:29 +01:00
Marc-André Lureau 4eaca8de26 qmp: common 'id' handling & make QGA conform to QMP spec
Let qmp_dispatch() copy the 'id' field. That way any qmp client will
conform to the specification, including QGA. Furthermore, it
simplifies the work for qemu monitor.

CC: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2019-03-18 10:48:06 -05:00
Martin Schrodt f614277765 audio/paaudio: prolong and make latency configurable
The latency of a connection to the PulseAudio server is determined by
the tlength parameter. This was hardcoded to 10ms, which is a bit too
tight on my machine, causing audio on host and guest to malfunction.
A setting of 15ms works fine here. To allow tweaking, I also made the
setting configurable via the new -audiodev config. This allows to squeeze out better timings in scenarios where the emulation allows it.

I also removed setting of the minreq parameter to (seemingly arbitrary) half the latency, since it showed worse audio quality during my tests. Allowing PulseAudio to request smaller chunks helped.

Signed-off-by: Martin Schrodt <martin@schrodt.org>
Message-id: 20190315084653.120020-3-martin@schrodt.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-03-18 12:21:15 +01:00
Peter Maydell dbbc277510 Pull request
* Add 'drop-cache=on|off' option to file-posix.c.  The default is on.
    Disabling the option fixes a QEMU 3.0.0 performance regression when live
    migrating on the same host with cache.direct=off.
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

 * Add 'drop-cache=on|off' option to file-posix.c.  The default is on.
   Disabling the option fixes a QEMU 3.0.0 performance regression when live
   migrating on the same host with cache.direct=off.

# gpg: Signature made Wed 13 Mar 2019 11:07:48 GMT
# gpg:                using RSA key 9CA4ABB381AB73C8
# 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:
  file-posix: add drop-cache=on|off option

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-14 09:34:51 +00:00
Peter Maydell 85ce84489a ui: better unicode support for curses, v2.
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Merge remote-tracking branch 'remotes/kraxel/tags/ui-20190313-pull-request' into staging

ui: better unicode support for curses, v2.

# gpg: Signature made Wed 13 Mar 2019 07:29:44 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/ui-20190313-pull-request:
  curses: add option to specify VGA font encoding
  iconv: detect and make curses depend on it

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-13 20:11:06 +00:00
Peter Maydell 523a2a42c3 Pull request
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Merge remote-tracking branch 'remotes/jnsnow/tags/bitmaps-pull-request' into staging

Pull request

# gpg: Signature made Tue 12 Mar 2019 20:23:08 GMT
# 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: (22 commits)
  tests/qemu-iotests: add bitmap resize test 246
  block/qcow2-bitmap: Allow resizes with persistent bitmaps
  block/qcow2-bitmap: Don't check size for IN_USE bitmap
  docs/interop/qcow2: Improve bitmap flag in_use specification
  bitmaps: Fix typo in function name
  block/dirty-bitmaps: implement inconsistent bit
  block/dirty-bitmaps: disallow busy bitmaps as merge source
  block/dirty-bitmaps: prohibit removing readonly bitmaps
  block/dirty-bitmaps: prohibit readonly bitmaps for backups
  block/dirty-bitmaps: add block_dirty_bitmap_check function
  block/dirty-bitmap: add inconsistent status
  block/dirty-bitmaps: add inconsistent bit
  iotests: add busy/recording bit test to 124
  blockdev: remove unused paio parameter documentation
  block/dirty-bitmaps: move comment block
  block/dirty-bitmaps: unify qmp_locked and user_locked calls
  block/dirty-bitmap: explicitly lock bitmaps with successors
  nbd: change error checking order for bitmaps
  block/dirty-bitmap: change semantics of enabled predicate
  block/dirty-bitmap: remove set/reset assertions against enabled bit
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	tests/qemu-iotests/group
2019-03-13 17:30:34 +00:00
Peter Maydell 36fe770966 Block layer patches:
- file-posix: Make auto-read-only dynamic
 - Add x-blockdev-reopen QMP command
 - Finalize block-latency-histogram QMP command
 - gluster: Build fixes for newer lib version
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- file-posix: Make auto-read-only dynamic
- Add x-blockdev-reopen QMP command
- Finalize block-latency-histogram QMP command
- gluster: Build fixes for newer lib version

# gpg: Signature made Tue 12 Mar 2019 19:30:31 GMT
# 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: (28 commits)
  qemu-iotests: Test the x-blockdev-reopen QMP command
  block: Add an 'x-blockdev-reopen' QMP command
  block: Remove the AioContext parameter from bdrv_reopen_multiple()
  block: Add bdrv_reset_options_allowed()
  block: Add a 'mutable_opts' field to BlockDriver
  block: Allow changing the backing file on reopen
  block: Allow omitting the 'backing' option in certain cases
  block: Handle child references in bdrv_reopen_queue()
  block: Add 'keep_old_opts' parameter to bdrv_reopen_queue()
  block: Freeze the backing chain for the duration of the stream job
  block: Freeze the backing chain for the duration of the mirror job
  block: Freeze the backing chain for the duration of the commit job
  block: Allow freezing BdrvChild links
  nvme: fix write zeroes offset and count
  file-posix: Make auto-read-only dynamic
  file-posix: Prepare permission code for fd switching
  file-posix: Lock new fd in raw_reopen_prepare()
  file-posix: Store BDRVRawState.reopen_state during reopen
  file-posix: Factor out raw_reconfigure_getfd()
  file-posix: Fix bdrv_open_flags() for snapshot=on
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-13 14:44:28 +00:00
Stefan Hajnoczi f357fcd890 file-posix: add drop-cache=on|off option
Commit dd577a26ff ("block/file-posix:
implement bdrv_co_invalidate_cache() on Linux") introduced page cache
invalidation so that cache.direct=off live migration is safe on Linux.

The invalidation takes a significant amount of time when the file is
large and present in the page cache.  Normally this is not the case for
cross-host live migration but it can happen when migrating between QEMU
processes on the same host.

On same-host migration we don't need to invalidate pages for correctness
anyway, so an option to skip page cache invalidation is useful.  I
investigated optimizing invalidation and detecting same-host migration,
but both are hard to achieve so a user-visible option will suffice.

As a bonus this option means that the cache invalidation feature will
now be detectable by libvirt via QMP schema introspection.

Suggested-by: Neil Skrypuch <neil@tembosocial.com>
Tested-by: Neil Skrypuch <neil@tembosocial.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190307164941.3322-1-stefanha@redhat.com
Message-Id: <20190307164941.3322-1-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-03-13 10:54:55 +00:00
Samuel Thibault 2f8b7cd587 curses: add option to specify VGA font encoding
This uses iconv to convert glyphs from the specified VGA font encoding to
unicode, and makes use of cchar_t instead of chtype when using ncursesw,
which allows to store all wide char as well as the WACS values. The default
charset is made CP437 since that is the charset of the hardware default VGA
font. This also makes the curses backend set the LC_CTYPE locale to "" to
allow curses to emit wide characters.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Eddie Kohler <ekohler@gmail.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190311135127.2229-3-samuel.thibault@ens-lyon.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-03-13 08:29:06 +01:00
Alberto Garcia 1479c730c7 block: Add an 'x-blockdev-reopen' QMP command
This command allows reopening an arbitrary BlockDriverState with a
new set of options. Some options (e.g node-name) cannot be changed
and some block drivers don't allow reopening, but otherwise this
command is modelled after 'blockdev-add' and the state of the reopened
BlockDriverState should generally be the same as if it had just been
added by 'blockdev-add' with the same set of options.

One notable exception is the 'backing' option: 'x-blockdev-reopen'
requires that it is always present unless the BlockDriverState in
question doesn't have a current or default backing file.

This command allows reconfiguring the graph by using the appropriate
options to change the children of a node. At the moment it's possible
to change a backing file by setting the 'backing' option to the name
of the new node, but it should also be possible to add a similar
functionality to other block drivers (e.g. Quorum, blkverify).

Although the API is unlikely to change, this command is marked
experimental for the time being so there's room to see if the
semantics need changes.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-12 20:30:14 +01:00
Vladimir Sementsov-Ogievskiy cb8aac3783 qapi: drop x- from x-block-latency-histogram-set
Drop x- and x_ prefixes for latency histograms and update version to
4.0

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-12 20:30:08 +01:00
Peter Maydell cfc3fef6b4 audio: introduce -audiodev
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Merge remote-tracking branch 'remotes/kraxel/tags/audio-20190312-pull-request' into staging

audio: introduce -audiodev

# gpg: Signature made Tue 12 Mar 2019 07:12:19 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-20190312-pull-request:
  audio: -audiodev command line option: cleanup
  wavaudio: port to -audiodev config
  spiceaudio: port to -audiodev config
  sdlaudio: port to -audiodev config
  paaudio: port to -audiodev config
  ossaudio: port to -audiodev config
  noaudio: port to -audiodev config
  dsoundaudio: port to -audiodev config
  coreaudio: port to -audiodev config
  alsaaudio: port to -audiodev config
  audio: -audiodev command line option basic implementation
  audio: -audiodev command line option: documentation
  audio: use qapi AudioFormat instead of audfmt_e
  qapi: qapi for audio backends

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	qemu-deprecated.texi
2019-03-12 16:45:13 +00:00
John Snow 0064cfefa4 block/dirty-bitmap: add inconsistent status
Even though the status field is deprecated, we still have to support
it for a few more releases. Since this is a very new kind of bitmap
state, it makes sense for it to have its own status field.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190301191545.8728-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-03-12 12:05:49 -04:00
John Snow b0f455599d block/dirty-bitmaps: add inconsistent bit
Add an inconsistent bit to dirty-bitmaps that allows us to report a bitmap as
persistent but potentially inconsistent, i.e. if we find bitmaps on a qcow2
that have been marked as "in use".

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: 20190301191545.8728-2-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-03-12 12:05:49 -04:00
John Snow 4db6ceb0b5 block/dirty-bitmap: add recording and busy properties
The current API allows us to report a single status, which we've defined as:

Frozen: has a successor, treated as qmp_locked, may or may not be enabled.
Locked: no successor, qmp_locked. may or may not be enabled.
Disabled: Not frozen or locked, disabled.
Active: Not frozen, locked, or disabled.

The problem is that both "Frozen" and "Locked" mean nearly the same thing,
and that both of them do not intuit whether they are recording guest writes
or not.

This patch deprecates that status field and introduces two orthogonal
properties instead to replace it.

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: 20190223000614.13894-2-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-03-12 12:05:48 -04:00
Vladimir Sementsov-Ogievskiy af0a226504 qapi: move to QOM path for x-block-latency-histogram-set
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-12 14:26:49 +01:00
Daniel P. Berrange fd4a5fd463 chardev: add support for authorization for TLS clients
Currently any client which can complete the TLS handshake is able to use
a chardev server. The server admin can turn on the 'verify-peer' option
for the x509 creds to require the client to provide a x509
certificate. This means the client will have to acquire a certificate
from the CA before they are permitted to use the chardev server. This is
still a fairly low bar.

This adds a 'tls-authz=OBJECT-ID' option to the socket chardev backend
which takes the ID of a previously added 'QAuthZ' object instance. This
will be used to validate the client's x509 distinguished name. Clients
failing the check will not be permitted to use the chardev server.

For example to setup authorization that only allows connection from a
client whose x509 certificate distinguished name contains 'CN=fred', you
would use:

  $QEMU -object tls-creds-x509,id=tls0,dir=/home/berrange/qemutls,\
                endpoint=server,verify-peer=yes \
        -object authz-simple,id=authz0,identity=CN=laptop.example.com,,\
                O=Example Org,,L=London,,ST=London,,C=GB \
        -chardev socket,host=127.0.0.1,port=9000,server,\
	         tls-creds=tls0,tls-authz=authz0 \
        ...other qemu args...

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2019-03-11 16:55:52 +01:00
Kővágó, Zoltán 8c3a7d0087 qapi: qapi for audio backends
This patch adds structures into qapi to replace the existing
configuration structures used by audio backends currently. This qapi
will be the base of the -audiodev command line parameter (that replaces
the old environment variables based config).

This is not a 1:1 translation of the old options, I've tried to make
them much more consistent (e.g. almost every backend had an option to
specify buffer size, but the name was different for every backend, and
some backends required usecs, while some other required frames, samples
or bytes). Also tried to reduce the number of abbreviations used by the
config keys.

Some of the more important changes:
* use `in` and `out` instead of `ADC` and `DAC`, as the former is more
  user friendly imho
* moved buffer settings into the global setting area (so it's the same
  for all backends that support it. Backends that can't change buffer
  size will simply ignore them). Also using usecs, as it's probably more
  user friendly than samples or bytes.
* try-poll is now an alsa backend specific option (as all other backends
  currently ignore it)

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 5461b514dbf3e0bc31b0abb6498a9b3a008c271e.1552083282.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-03-11 10:29:26 +01:00
Peter Maydell e2a18635a4 nbd patches for 2019-03-08
- support TLS client authorization in NBD servers
 - iotest 223 race fix
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Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2019-03-08' into staging

nbd patches for 2019-03-08

- support TLS client authorization in NBD servers
- iotest 223 race fix

# gpg: Signature made Fri 08 Mar 2019 17:37:59 GMT
# gpg:                using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg:                 aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2019-03-08:
  iotests: Wait for qemu to end in 223
  nbd: fix outdated qapi docs syntax for tls-creds
  nbd: allow authorization with nbd-server-start QMP command
  qemu-nbd: add support for authorization of TLS clients

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-09 20:55:44 +00:00
Kevin Wolf 6c3944dc62 qcow2: Implement data-file-raw create option
Provide an option to force QEMU to always keep the external data file
consistent as a standalone read-only raw image.

At the moment, this means making sure that write_zeroes requests are
forwarded to the data file instead of just updating the metadata, and
checking that no backing file is used.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-08 12:26:46 +01:00
Kevin Wolf 9b890bdcb6 qcow2: Store data file name in the image
Rather than requiring that the external data file node is passed
explicitly when creating the qcow2 node, store the filename in the
designated header extension during .bdrv_create and read it from there
as a default during .bdrv_open.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-08 12:26:46 +01:00
Kevin Wolf dcc98687f8 qcow2: Creating images with external data file
This adds a .bdrv_create option to use an external data file.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-08 12:26:46 +01:00
Kevin Wolf 0e8c08be27 qcow2: Add basic data-file infrastructure
This adds a .bdrv_open option to specify the external data file node.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-08 12:26:46 +01:00
Daniel P. Berrangé ab7c5d940b nbd: fix outdated qapi docs syntax for tls-creds
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190227162035.18543-4-berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-03-06 11:05:27 -06:00
Daniel P. Berrange 000194556b nbd: allow authorization with nbd-server-start QMP command
As with the previous patch to qemu-nbd, the nbd-server-start QMP command
also needs to be able to specify authorization when enabling TLS encryption.

First the client must create a QAuthZ object instance using the
'object-add' command:

   {
     'execute': 'object-add',
     'arguments': {
       'qom-type': 'authz-list',
       'id': 'authz0',
       'parameters': {
         'policy': 'deny',
         'rules': [
           {
             'match': '*CN=fred',
             'policy': 'allow'
           }
         ]
       }
     }
   }

They can then reference this in the new 'tls-authz' parameter when
executing the 'nbd-server-start' command:

   {
     'execute': 'nbd-server-start',
     'arguments': {
       'addr': {
           'type': 'inet',
           'host': '127.0.0.1',
           'port': '9000'
       },
       'tls-creds': 'tls0',
       'tls-authz': 'authz0'
     }
   }

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20190227162035.18543-3-berrange@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-03-06 11:05:27 -06:00
Zhang Chen b5922fc589 qapi/migration.json: Remove a variable that doesn't exist in example
Remove the "active" variable in example for query-colo-status.
It is a doc bug from commit f56c0065

Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190303145021.2962-6-chen.zhang@intel.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-06 10:49:18 +00:00
Juan Quintela 9aca82ba31 migration: Create socket-address parameter
It will be used to store the uri parameters. We want this only for
tcp, so we don't set it for other uris.  We need it to know what port
is migration running.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  dgilbert: Removed DummyStruct as suggested by Eric & Markus

--
2019-03-06 10:49:17 +00:00
Yury Kotov 18269069c3 migration: Introduce ignore-shared capability
We want to use local migration to update QEMU for running guests.
In this case we don't need to migrate shared (file backed) RAM.
So, add a capability to ignore such blocks during live migration.

Signed-off-by: Yury Kotov <yury-kotov@yandex-team.ru>
Message-Id: <20190215174548.2630-3-yury-kotov@yandex-team.ru>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-06 10:49:17 +00:00
Dr. David Alan Gilbert a06cd488d8 qmp: Add announce-self command
Add a qmp command that can trigger guest announcements.

It uses its own announce-timer instance, and parameters
passed to it explicitly in the command.

Like most qmp commands, it's in the main thread/bql, so
there's no racing with any outstanding timer.

Based on work of Germano Veit Michel <germano@redhat.com> and
                 Vladislav Yasevich <vyasevic@redhat.com>

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2019-03-05 11:27:41 +08:00
Dr. David Alan Gilbert ee3d96baf3 migration: Add announce parameters
Add migration parameters that control RARP/GARP announcement timeouts.

Based on earlier patches by myself and
  Vladislav Yasevich <vyasevic@redhat.com>

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2019-03-05 11:27:41 +08:00
Dr. David Alan Gilbert 50510ea2c2 net: Introduce announce timer
The 'announce timer' will be used by migration, and explicit
requests for qemu to perform network announces.

Based on the work by Germano Veit Michel <germano@redhat.com>
 and Vlad Yasevich <vyasevic@redhat.com>

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2019-03-05 11:27:41 +08:00
Daniel P. Berrange c8c99887d1 authz: add QAuthZList object type for an access control list
Add a QAuthZList object type that implements the QAuthZ interface. This
built-in implementation maintains a trivial access control list with a
sequence of match rules and a final default policy. This replicates the
functionality currently provided by the qemu_acl module.

To create an instance of this object via the QMP monitor, the syntax
used would be:

  {
    "execute": "object-add",
    "arguments": {
      "qom-type": "authz-list",
      "id": "authz0",
      "props": {
        "rules": [
           { "match": "fred", "policy": "allow", "format": "exact" },
           { "match": "bob", "policy": "allow", "format": "exact" },
           { "match": "danb", "policy": "deny", "format": "glob" },
           { "match": "dan*", "policy": "allow", "format": "exact" },
        ],
        "policy": "deny"
      }
    }
  }

This sets up an authorization rule that allows 'fred', 'bob' and anyone
whose name starts with 'dan', except for 'danb'. Everyone unmatched is
denied.

It is not currently possible to create this via -object, since there is
no syntax supported to specify non-scalar properties for objects. This
is likely to be addressed by later support for using JSON with -object,
or an equivalent approach.

In any case the future "authz-listfile" object can be used from the
CLI and is likely a better choice, as it allows the ACL to be refreshed
automatically on change.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2019-02-26 15:32:18 +00:00
Peter Maydell 8a4c08b161 ui: add support for -display spice-app
ui: gtk+sdl bugfixes.
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Merge remote-tracking branch 'remotes/kraxel/tags/ui-20190222-pull-request' into staging

ui: add support for -display spice-app
ui: gtk+sdl bugfixes.

# gpg: Signature made Fri 22 Feb 2019 07:53:13 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/ui-20190222-pull-request:
  display: add -display spice-app launching a Spice client
  spice: use a default name for the server
  qapi: document DisplayType enum
  build-sys: add gio-2.0 check
  char: register spice ports after spice started
  char: move SpiceChardev and open_spice_port() to spice.h header
  spice: do not stop spice if VM is paused
  spice: merge options lists
  spice: avoid spice runtime assert
  char/spice: discard write() if backend is disconnected
  char/spice: trigger HUP event
  ui/gtk: Fix the license information
  sdl2: drop qemu_input_event_send_key_qcode call
  spice: set device address and device display ID in QXL interface
  kbd-state: don't block auto-repeat events

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-25 09:05:41 +00:00
Marc-André Lureau d8aec9d9f1 display: add -display spice-app launching a Spice client
Add a new display backend that will configure Spice to allow a remote
client to control QEMU in a similar fashion as other QEMU display
backend/UI like GTK.

For this to work, it will set up Spice server with a unix socket, and
register a VC chardev that will be exposed as Spice ports. A QMP
monitor is also exposed as a Spice port, this allows the remote client
fuller qemu control and state handling.

- doesn't handle VC set_echo() - this doesn't seem a strong
  requirement, very few front-end use it
- spice options can be tweaked with other -spice arguments
- Windows support shouldn't be hard to do, but will probably use a TCP
  port instead
- we may want to watch the child process to quit automatically if it
  crashed

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Victor Toso <victortoso@redhat.com>
Message-id: 20190221110703.5775-12-marcandre.lureau@redhat.com

[ kraxel: squash incremental fix ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-02-22 07:42:59 +01:00
Pavel Dovgalyuk 535db74413 target/mips: implement QMP query-cpu-definitions command
This patch enables QMP-based querying of the available CPU types for
MIPS and MIPS64 platforms.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2019-02-21 19:36:47 +01:00
Marc-André Lureau 42176d7703 qapi: document DisplayType enum
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Victor Toso <victortoso@redhat.com>
Message-id: 20190221110703.5775-10-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-02-21 14:09:17 +01:00
John Snow 73ab5d601c block/dirty-bitmap: Documentation and Comment fixups
The meaning of the states has changed subtly over time,
this should bring the understanding more in-line with the
current, actual usages.

Reported-by: Eric Blake <eblake@redhat.com>
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: 20190202011048.12343-1-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-02-19 17:49:43 -05:00
Eric Blake f67cf661f8 dirty-bitmap: Expose persistent flag to 'query-block'
Since qemu currently doesn't flush persistent bitmaps to disk until
shutdown (which might be MUCH later), it's useful if 'query-block'
at least shows WHICH bitmaps will (eventually) make it to persistent
storage.  Update affected iotests.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190204210512.27458-1-eblake@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-02-19 17:49:43 -05:00