Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- virtio-blk: Multiqueue fixes and cleanups
- blklogwrites: Fixes for write_zeroes and superblock update r

Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- virtio-blk: Multiqueue fixes and cleanups
- blklogwrites: Fixes for write_zeroes and superblock update races
- commit/stream: Allow users to request only format driver names in
backing file format
- monitor: only run coroutine commands in qemu_aio_context
- Some iotest fixes

# -----BEGIN PGP SIGNATURE-----
#
# iQJFBAABCAAvFiEE3D3rFZqa+V09dFb+fwmycsiPL9YFAmWzpOwRHGt3b2xmQHJl
# ZGhhdC5jb20ACgkQfwmycsiPL9ZNzg//W1+C7HxLft4Jc4O1BcOoOLlGCg4Esupt
# z0/XLZ9+xVQUtjQ82pFzf9XaWQs8CuNT3FBUKi+ngdwZ0JBThIv0aGiMZBcAeQjD
# qshPFgDM1lGL4ICIaT73/qfUzQgO3oruZj9F+ShBBzoasNWVoRzqqVDR3pinLwTp
# D4TU+3A6LkdhlYGT60SYfRq/UKNmCA1s2wysdjqXxS6KOEURNF2VBnz0Nu76qrVb
# 3P/a55GPiJIn+VVsdQ0J4vyyzn23m7I7WZOJ7Sjm1EfSJ6SvcDbhWsZTUonaV2rU
# qZ3WI/jggqxXRV8F2AaA4suS/Cc8RkX2KfcN8fB6wDC2eI5USSatjh6xfw5xH9Ll
# NRKUO4vFFR3Lf8wN9apg0Bwxqi0GOm9kvBJT5QqjQ16R1dvqBLqbZqcx6ZXqWFXe
# /Iy243Tz19mWTFVUj0EgCKQpNz9F4SyXxV83HtSR1lJ5mhthnLxkvUOe7jsFPE4d
# 1Z3uBNWnx2mKFkhlwocMTKayYqxPuKQ+YjqrRoplLW1GZoBeoalKRGf8/RHa6kQx
# gh4cguihlb71AH1AO1QuYpiZt9G4RJR2RZlIoCPJY5TaKJedcxMVn8H+8/F0PnQd
# gPysZf7hTU1xCUV6TClDd+f2fuvqZYwXdwHJ9iiohNkbFq4HFQUp4nk4/eEPGSe/
# uv8oE813E30=
# =KQJl
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 26 Jan 2024 12:26:20 GMT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6

* tag 'for-upstream' of https://repo.or.cz/qemu/kevin:
iotests/277: Use iotests.sock_dir for socket creation
iotests/iothreads-stream: Use the right TimeoutError
tests/unit: Bump test-replication timeout to 60 seconds
iotests/264: Use iotests.sock_dir for socket creation
block/blklogwrites: Protect mutable driver state with a mutex.
virtio-blk: always set ioeventfd during startup
virtio-blk: tolerate failure to set BlockBackend AioContext
virtio-blk: restart s->rq reqs in vq AioContexts
virtio-blk: rename dataplane to ioeventfd
virtio-blk: rename dataplane create/destroy functions
virtio-blk: move dataplane code into virtio-blk.c
monitor: only run coroutine commands in qemu_aio_context
iotests: port 141 to Python for reliable QMP testing
iotests: add filter_qmp_generated_node_ids()
stream: Allow users to request only format driver names in backing file format
commit: Allow users to request only format driver names in backing file format
string-output-visitor: Fix (pseudo) struct handling
block/blklogwrites: Fix a bug when logging "write zeroes" operations.

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

show more ...

monitor: only run coroutine commands in qemu_aio_context

monitor_qmp_dispatcher_co() runs in the iohandler AioContext that is not
polled during nested event loops. The coroutine currently reschedule

monitor: only run coroutine commands in qemu_aio_context

monitor_qmp_dispatcher_co() runs in the iohandler AioContext that is not
polled during nested event loops. The coroutine currently reschedules
itself in the main loop's qemu_aio_context AioContext, which is polled
during nested event loops. One known problem is that QMP device-add
calls drain_call_rcu(), which temporarily drops the BQL, leading to all
sorts of havoc like other vCPU threads re-entering device emulation code
while another vCPU thread is waiting in device emulation code with
aio_poll().

Paolo Bonzini suggested running non-coroutine QMP handlers in the
iohandler AioContext. This avoids trouble with nested event loops. His
original idea was to move coroutine rescheduling to
monitor_qmp_dispatch(), but I resorted to moving it to qmp_dispatch()
because we don't know if the QMP handler needs to run in coroutine
context in monitor_qmp_dispatch(). monitor_qmp_dispatch() would have
been nicer since it's associated with the monitor implementation and not
as general as qmp_dispatch(), which is also used by qemu-ga.

A number of qemu-iotests need updated .out files because the order of
QMP events vs QMP responses has changed.

Solves Issue #1933.

Cc: qemu-stable@nongnu.org
Fixes: 7bed89958bfbf40df9ca681cefbdca63abdde39d ("device_core: use drain_call_rcu in in qmp_device_add")
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2215192
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2214985
Buglink: https://issues.redhat.com/browse/RHEL-17369
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20240118144823.1497953-4-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2018-12-18' into staging

QAPI patches for 2018-12-18

# gpg: Signature made Tue 18 Dec 2018 07:20:11 GMT
# gpg: using RSA k

Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2018-12-18' into staging

QAPI patches for 2018-12-18

# gpg: Signature made Tue 18 Dec 2018 07:20:11 GMT
# gpg: using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2018-12-18:
qapi: fix flat union on uncovered branches conditionals
qmp hmp: Make system_wakeup check wake-up support and run state
qga: update guest-suspend-ram and guest-suspend-hybrid descriptions
qmp: query-current-machine with wakeup-suspend-support
qmp: Split ShutdownCause host-qmp into quit and system-reset
qmp: Add reason to SHUTDOWN and RESET events
qapi: Turn ShutdownCause into QAPI enum

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

show more ...

qmp: Split ShutdownCause host-qmp into quit and system-reset

It is interesting to know whether the shutdown cause was 'quit' or
'reset', especially when using "--no-reboot". In that case, a manageme

qmp: Split ShutdownCause host-qmp into quit and system-reset

It is interesting to know whether the shutdown cause was 'quit' or
'reset', especially when using "--no-reboot". In that case, a management
layer can now determine if the guest wanted a reboot or shutdown, and
can act accordingly.

Changes the output of the reason in the iotests from 'host-qmp' to
'host-qmp-quit'. This does not break compatibility because
the field was introduced in the same version.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Message-Id: <20181205110131.23049-4-d.csapak@proxmox.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>

show more ...

qmp: Add reason to SHUTDOWN and RESET events

This makes it possible to determine what the exact reason was for
a RESET or a SHUTDOWN. A management layer might need the specific reason
of those event

qmp: Add reason to SHUTDOWN and RESET events

This makes it possible to determine what the exact reason was for
a RESET or a SHUTDOWN. A management layer might need the specific reason
of those events to determine which cleanups or other actions it needs to do.

This patch also updates the iotests to the new expected output that includes
the reason.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Message-Id: <20181205110131.23049-3-d.csapak@proxmox.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>

show more ...

Merge remote-tracking branch 'armbru/tags/pull-qapi-2017-05-23' into staging

QAPI patches for 2017-05-23

# gpg: Signature made Tue 23 May 2017 12:33:32 PM BST
# gpg: using RSA key 0x

Merge remote-tracking branch 'armbru/tags/pull-qapi-2017-05-23' into staging

QAPI patches for 2017-05-23

# gpg: Signature made Tue 23 May 2017 12:33:32 PM BST
# gpg: using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* armbru/tags/pull-qapi-2017-05-23:
qapi-schema: Remove obsolete note from ObjectTypeInfo
block: Use QDict helpers for --force-share
shutdown: Expose bool cause in SHUTDOWN and RESET events
shutdown: Add source information to SHUTDOWN and RESET
shutdown: Preserve shutdown cause through replay
shutdown: Prepare for use of an enum in reset/shutdown_request
shutdown: Simplify shutdown_signal
sockets: Plug memory leak in socket_address_flatten()
scripts/qmp/qom-set: fix the value argument passed to srv.command()

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

shutdown: Expose bool cause in SHUTDOWN and RESET events

Libvirt would like to be able to distinguish between a SHUTDOWN
event triggered solely by guest request and one triggered by a
SIGTERM or oth

shutdown: Expose bool cause in SHUTDOWN and RESET events

Libvirt would like to be able to distinguish between a SHUTDOWN
event triggered solely by guest request and one triggered by a
SIGTERM or other action on the host. While qemu_kill_report() was
already able to give different output to stderr based on whether a
shutdown was triggered by a host signal (but NOT by a host UI event,
such as clicking the X on the window), that information was then
lost to management. The previous patches improved things to use an
enum throughout all callsites, so now we have something ready to
expose through QMP.

Note that for now, the decision was to expose ONLY a boolean,
rather than promoting ShutdownCause to a QAPI enum; this is because
libvirt has not expressed an interest in anything finer-grained.
We can still add additional details, in a backwards-compatible
manner, if a need later arises (if the addition happens before 2.10,
we can replace the bool with an enum; otherwise, the enum will have
to be in addition to the bool); this patch merely adds a helper
shutdown_caused_by_guest() to map the internal enum into the
external boolean.

Update expected iotest outputs to match the new data (complete
coverage of the affected tests is obtained by -raw, -qcow2, and -nbd).

Here is output from 'virsh qemu-monitor-event --loop' with the
patch installed:

event SHUTDOWN at 1492639680.731251 for domain fedora_13: {"guest":true}
event STOP at 1492639680.732116 for domain fedora_13: <null>
event SHUTDOWN at 1492639680.732830 for domain fedora_13: {"guest":false}

Note that libvirt runs qemu with -no-shutdown: the first SHUTDOWN event
was triggered by an action I took directly in the guest (shutdown -h),
at which point qemu stops the vcpus and waits for libvirt to do any
final cleanups; the second SHUTDOWN event is the result of libvirt
sending SIGTERM now that it has completed cleanup. Libvirt is already
smart enough to only feed the first qemu SHUTDOWN event to the end user
(remember, virsh qemu-monitor-event is a low-level debugging interface
that is explicitly unsupported by libvirt, so it sees things that normal
end users do not); changing qemu to emit SHUTDOWN only once is outside
the scope of this series.

See also https://bugzilla.redhat.com/1384007

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20170515214114.15442-6-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer core and image format patches

# gpg: Signature made Fri Jun 12 16:08:53 2015 BST using RSA key ID C88F2FD6
#

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer core and image format patches

# gpg: Signature made Fri Jun 12 16:08:53 2015 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (25 commits)
block: Fix reopen flag inheritance
block: Add BlockDriverState.inherits_from
block: Add list of children to BlockDriverState
queue.h: Add QLIST_FIX_HEAD_PTR()
block: Drain requests before swapping nodes in bdrv_swap()
block: Move flag inheritance to bdrv_open_inherit()
block: Use QemuOpts in bdrv_open_common()
block: Use macro for cache option names
vmdk: Use bdrv_open_image()
quorum: Use bdrv_open_image()
check-qdict: Test cases for new functions
qdict: Add qdict_{set,copy}_default()
qdict: Add qdict_array_entries()
iotests: Add tests for overriding BDRV_O_PROTOCOL
block: driver should override flags in bdrv_open()
block: Change bitmap truncate conditional to assertion
block: record new size in bdrv_dirty_bitmap_truncate
raw-posix: Fix .bdrv_co_get_block_status() for unaligned image size
vmdk: Use vmdk_find_index_in_cluster everywhere
vmdk: Fix index_in_cluster calculation in vmdk_co_get_block_status
...

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

show more ...

iotests: Add tests for overriding BDRV_O_PROTOCOL

This adds tests for overriding the qemu-internal BDRV_O_PROTOCOL flag by
explicitly specifying a block driver. As one test must be run over the
NBD

iotests: Add tests for overriding BDRV_O_PROTOCOL

This adds tests for overriding the qemu-internal BDRV_O_PROTOCOL flag by
explicitly specifying a block driver. As one test must be run over the
NBD protocol while the other must not, this patch adds two separate
iotests.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...