Commit Graph

101045 Commits

Author SHA1 Message Date
Marc-André Lureau
7a6e869cb5 lcitool: drop perl from QEMU project/dependencies
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-8-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-12-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
0054dc8bde Update lcitool and fedora to 37
Fedora 35 is EOL.

Update to upstream lcitool, that dropped f35 and added f37.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-7-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-11-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
3ab8bf8341 gitlab: add lsan suppression file to workaround tcmalloc issues
The up-coming upgrade to Fedora 37 will bring in libtcmalloc as a
dependency of libglusterfs which confuses our fuzz run. Rather than
disable the build lets use LSAN's suppression mechanism to prevent the
job from failing.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230124180127.1881110-10-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
d89935c95e docs: drop texinfo options
It looks like this is no longer wanted, we only build the html output.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110132700.833690-6-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-9-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
ec91e92378 meson: replace Perl usage with Python
Let's try to remove Perl usage during build time.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110132700.833690-5-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-8-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
7195f30248 .gitlab-ci.d/windows: do not disable opengl
The previous patch should have fixed shader compilation.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-3-marcandre.lureau@redhat.com>
[AJB: tweak commit message]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-7-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
e2c4012bc3 build-sys: fix crlf-ending C code
On msys2, the shader-to-C script produces bad C:
./ui/shader/texture-blit-vert.h:2:5: error: missing terminating " character [-Werror]

Fix it by changing the line ending from crlf to lf, and convert the
script to Python (qemu build seems perl-free after that).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230110132700.833690-2-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-6-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
c906e6fbaa tests/unit: drop hacky race avoidance in test-io-channel-command
We don't need to play timing games to ensure one socat wins over the
other, just create the fifo they both can use before spawning the
processes. However in the process we need to disable two tests for
Windows platforms as we don't have an abstraction for mkfifo().

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1403
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230124180127.1881110-5-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
c34bf19feb gitlab: just use plain --cc=clang for custom runner build
I think this was because older Ubuntu's didn't alias clang to whatever
the latest version was. They do now so lets use that and not break.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-4-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Mark Cave-Ayland
075d909d04 gitlab: add FF_SCRIPT_SECTIONS for timings
Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230124180127.1881110-3-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
69c4befba1 scripts/ci: update gitlab-runner playbook to use latest runner
We were using quite and old runner on our machines and running into
issues with stalling jobs. Gitlab in the meantime now reliably provide
the latest packaged versions of the runner under a stable URL. This
update:

  - creates a per-arch subdir for builds
  - switches from binary tarballs to deb packages
  - re-uses the same binary for the secondary runner
  - updates distro check for second to 22.04

Note this script isn't fully idempotent as we end up accumulating
runners especially during testing. However we also want to be able to
run twice with different GitLab keys (e.g. project and personal) so I
think we just have to be mindful of that during testing.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230124180127.1881110-2-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Peter Maydell
deabea6e88 virtio,pc,pci: features, cleanups, fixes
lots of fixes, cleanups
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pc,pci: features, cleanups, fixes

lots of fixes, cleanups

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

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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (56 commits)
  docs/pcie.txt: Replace ioh3420 with pcie-root-port
  Revert "vhost-user: Introduce nested event loop in vhost_user_read()"
  Revert "vhost-user: Monitor slave channel in vhost_user_read()"
  tests/qtest/bios-tables-test: Make the test less verbose by default
  hw: Use TYPE_PCI_BUS definition where appropriate
  vhost-user: Skip unnecessary duplicated VHOST_USER_ADD/REM_MEM_REG requests
  tests: acpi: update expected blobs
  pcihp: generate populated non-hotpluggble slot descriptions on non-hotplug path
  tests: acpi: whitelist DSDT before moving non-hotpluggble slots description from hotplug path
  tests: acpi: update expected blobs
  pcihp: acpi: ignore coldplugged bridges when composing hotpluggable slots
  tests: acpi: whitelist DSDT blobs before removing dynamic _DSM on coldplugged bridges
  tests: acpi: update expected blobs
  pcihp: acpi: decouple hotplug and generic slots description
  tests: acpi: whitelist DSDT before decoupling PCI hotplug code from basic slots description
  pcihp: isolate rule whether slot should be described in DSDT
  pci: make sure pci_bus_is_express() won't error out with "discards ‘const’ qualifier"
  pcihp: make bridge describe itself using AcpiDevAmlIfClass:build_dev_aml
  pci: acpi: wire up AcpiDevAmlIf interface to generic bridge
  x86: pcihp: acpi: prepare slot ignore rule to work with self describing bridges
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-02 10:10:07 +00:00
Peter Maydell
026817fb69 Python
Bits and pieces, kibbles'n'bits
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Merge tag 'python-pull-request' of https://gitlab.com/jsnow/qemu into staging

Python

Bits and pieces, kibbles'n'bits

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# gpg: Signature made Wed 25 Jan 2023 02:32:34 GMT
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# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
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* tag 'python-pull-request' of https://gitlab.com/jsnow/qemu:
  python/qemu/machine: use socketpair() for QMP by default
  python/qmp/legacy: make QEMUMonitorProtocol accept a socket
  python/qmp/protocol: add open_with_socket()
  python/qmp: increase read buffer size
  python/machine: Fix AF_UNIX path too long on macOS
  python: QEMUMachine: enable qmp accept timeout by default
  Fix some typos

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-01 16:15:56 +00:00
Hanna Reitz
d570177b50 qemu-img: Change info key names for protocol nodes
Currently, when querying a qcow2 image, qemu-img info reports something
like this:

image: test.qcow2
file format: qcow2
virtual size: 64 MiB (67108864 bytes)
disk size: 196 KiB
cluster_size: 65536
Format specific information:
    compat: 1.1
    compression type: zlib
    lazy refcounts: false
    refcount bits: 16
    corrupt: false
    extended l2: false
Child node '/file':
    image: test.qcow2
    file format: file
    virtual size: 192 KiB (197120 bytes)
    disk size: 196 KiB
    Format specific information:
        extent size hint: 1048576

Notably, the way the keys are named is specific for image files: The
filename is shown under "image", the BDS driver under "file format", and
the BDS length under "virtual size".  This does not make much sense for
nodes that are not actually supposed to be guest images, like the /file
child node shown above.

Give bdrv_node_info_dump() a @protocol parameter that gives a hint that
the respective node is probably just used for data storage and does not
necessarily present the data for a VM guest disk.  This renames the keys
so that with this patch, the output becomes:

image: test.qcow2
[...]
Child node '/file':
    filename: test.qcow2
    protocol type: file
    file length: 192 KiB (197120 bytes)
    disk size: 196 KiB
    Format specific information:
        extent size hint: 1048576

(Perhaps we should also rename "Format specific information", but I
could not come up with anything better that will not become problematic
if we guess wrong with the protocol "heuristic".)

This change affects iotest 302, which has protocol node information in
its reference output.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-13-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
c04d0ab026 qemu-img: Let info print block graph
For every node in the backing chain, collect its BlockGraphInfo struct
using bdrv_query_block_graph_info().  Print all nodes' information,
indenting child nodes and labelling them with a path constructed from
the child names leading to the node from the root (e.g. /file/file).

Note that we open each image with BDRV_O_NO_BACKING, so its backing
child is omitted from this graph, and thus presented in the previous
manner: By simply concatenating all images' information, separated with
blank lines.

This affects two iotests:
- 065: Here we try to get the format node's format specific information.
  The pre-patch code does so by taking all lines from "Format specific
  information:" until an empty line.  This format specific information
  is no longer followed by an empty line, though, but by child node
  information, so limit the range by "Child node '/file':".
- 302: Calls qemu_img() for qemu-img info directly, which does not
  filter the output, so the child node information ends up in the
  output.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-12-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
74163adda3 iotests/106, 214, 308: Read only one size line
These tests read size information (sometimes disk size, sometimes
virtual size) from qemu-img info's output.  Once qemu-img starts
printing info about child nodes, we are going to see multiple instances
of that per image, but these tests are only interested in the first one,
so use "head -n 1" to get it.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-11-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
bcc6777ad6 iotests: Filter child node information
Before we let qemu-img info print child node information, have
common.filter, common.rc, and iotests.py filter it from the test output
so we get as few reference output changes as possible.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-10-hreitz@redhat.com>
Tested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
76c9e9750d block/qapi: Add indentation to bdrv_node_info_dump()
In order to let qemu-img info present a block graph, add a parameter to
bdrv_node_info_dump() and bdrv_image_info_specific_dump() so that the
information of nodes below the root level can be given an indentation.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-9-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
6cab33997b block/qapi: Introduce BlockGraphInfo
Introduce a new QAPI type BlockGraphInfo and an associated
bdrv_query_block_graph_info() function that recursively gathers
BlockNodeInfo objects through a block graph.

A follow-up patch is going to make "qemu-img info" use this to print
information about all nodes that are (usually implicitly) opened for a
given image file.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-8-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
5d8813593f block/qapi: Let bdrv_query_image_info() recurse
There is no real reason why bdrv_query_image_info() should generally not
recurse.  The ImageInfo struct has a pointer to the backing image, so it
should generally be filled, unless the caller explicitly opts out.

This moves the recursing code from bdrv_block_device_info() into
bdrv_query_image_info().

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-7-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
b1f4cd1589 qemu-img: Use BlockNodeInfo
qemu-img info never uses ImageInfo's backing-image field, because it
opens the backing chain one by one with BDRV_O_NO_BACKING, and prints
all backing chain nodes' information consecutively.  Use BlockNodeInfo
to make it clear that we only print information about a single node, and
that we are not using the backing-image field.

Notably, bdrv_image_info_dump() does not evaluate the backing-image
field, so we can easily make it take a BlockNodeInfo pointer (and
consequentially rename it to bdrv_node_info_dump()).  It makes more
sense this way, because again, the interface now makes it syntactically
clear that backing-image is ignored by this function.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-6-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
a2085f8909 block: Split BlockNodeInfo off of ImageInfo
ImageInfo sometimes contains flat information, and sometimes it does
not.  Split off a BlockNodeInfo struct, which only contains information
about a single node and has no link to the backing image.

We do this so we can extend BlockNodeInfo to a BlockGraphInfo struct,
which has links to all child nodes, not just the backing node.  It would
be strange to base BlockGraphInfo on ImageInfo, because then this
extended struct would have two links to the backing node (one in
BlockGraphInfo as one of all the child links, and one in ImageInfo).

Furthermore, it is quite common to ignore the backing-image field
altogether: bdrv_query_image_info() does not set it, and
bdrv_image_info_dump() does not evaluate it.  That signals that we
should have different structs for describing a single node and one that
has a link to the backing image.

Still, bdrv_query_image_info() and bdrv_image_info_dump() are not
changed too much in this patch.  Follow-up patches will handle them.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-5-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
456e75171a block/vmdk: Change extent info type
VMDK's implementation of .bdrv_get_specific_info() returns information
about its extent files, ostensibly in the form of ImageInfo objects.
However, it does not get this information through
bdrv_query_image_info(), but fills only a select few fields with custom
information that does not always match the fields' purposes.

For example, @format, which is supposed to be a block driver name, is
filled with the extent type, e.g. SPARSE or FLAT.

In ImageInfo, @compressed shows whether the data that can be seen in the
image is stored in compressed form or not.  For example, a compressed
qcow2 image will store compressed data in its data file, but when
accessing the qcow2 node, you will see normal data.  This is not how
VMDK uses the @compressed field for its extent files: Instead, it
signifies whether accessing the extent file will yield compressed data
(which the VMDK driver then (de-)compresses).

Create a new structure to represent the extent information.  This allows
us to clarify the fields' meanings, and it clearly shows that these are
not complete ImageInfo objects.  (That is, if a user wants an extent
file's ImageInfo object, they will need to query it separately, and will
not get it from ImageInfoSpecificVmdk.extents.)

Note that this removes the last use of ['ImageInfo'] (i.e. an array of
ImageInfo objects), so the QAPI generator will no longer generate
ImageInfoList by default.  However, we use it in qemu-img.c, so we need
to create a dummy object to force the generate to create that type,
similarly to DummyForceArrays in machine.json (introduced in commit
9f08c8ec73 ("qapi: Lazy creation of array
types")).

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-4-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
7f36a50ab4 block/file: Add file-specific image info
Add some (optional) information that the file driver can provide for
image files, namely the extent size hint.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-3-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:33 +01:00
Hanna Reitz
3716470b24 block: Improve empty format-specific info dump
When a block driver supports obtaining format-specific information, but
that object only contains optional fields, it is possible that none of
them are present, so that dump_qobject() (called by
bdrv_image_info_specific_dump()) will not print anything.

The callers of bdrv_image_info_specific_dump() put a header above this
information ("Format specific information:\n"), which will look strange
when there is nothing below.  Modify bdrv_image_info_specific_dump() to
print this header instead of its callers, and only if there is indeed
something to be printed.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220620162704.80987-2-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Philippe Mathieu-Daudé
fcb9e05144 block/nbd: Add missing <qemu/bswap.h> include
The inlined nbd_readXX() functions call beXX_to_cpu(), themselves
declared in <qemu/bswap.h>. This fixes when refactoring:

  In file included from ../../block/nbd.c:44:
  include/block/nbd.h: In function 'nbd_read16':
  include/block/nbd.h:383:12: error: implicit declaration of function 'be16_to_cpu' [-Werror=implicit-function-declaration]
    383 |     *val = be##bits##_to_cpu(*val);                                     \
        |            ^~
  include/block/nbd.h:387:1: note: in expansion of macro 'DEF_NBD_READ_N'
    387 | DEF_NBD_READ_N(16) /* Defines nbd_read16(). */
        | ^~~~~~~~~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221125175328.48539-1-philmd@linaro.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
ca5e2ad98d block: Rename bdrv_load/save_vmstate() to bdrv_co_load/save_vmstate()
Since these functions always run in coroutine context, adjust
their name to include "_co_", just like all other BlockDriver callbacks.

No functional change intended.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-15-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
c834dc0586 block: Convert bdrv_debug_event() to co_wrapper_mixed
bdrv_debug_event() is categorized as an I/O function, and it currently
doesn't run in a coroutine. We should let it take a graph rdlock since
it traverses the block nodes graph, which however is only possible in a
coroutine.

Therefore turn it into a co_wrapper_mixed to move the actual function
into a coroutine where the lock can be taken.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-14-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
2c75261cc2 block: Convert bdrv_lock_medium() to co_wrapper
bdrv_lock_medium() is categorized as an I/O function, and it currently
doesn't run in a coroutine. We should let it take a graph rdlock since
it traverses the block nodes graph, which however is only possible in a
coroutine.

The only caller of this function is blk_lock_medium(). Therefore make
blk_lock_medium() a co_wrapper, so that it always creates a new
coroutine, and then make bdrv_lock_medium() a coroutine_fn where the
lock can be taken.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-13-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
2531b390fb block: Convert bdrv_eject() to co_wrapper
bdrv_eject() is categorized as an I/O function, and it currently
doesn't run in a coroutine. We should let it take a graph rdlock since
it traverses the block nodes graph, which however is only possible in a
coroutine.

The only caller of this function is blk_eject(). Therefore make
blk_eject() a co_wrapper, so that it always creates a new coroutine, and
then make bdrv_eject() coroutine_fn where the lock can be taken.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-12-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
3d47eb0a2a block: Convert bdrv_get_info() to co_wrapper_mixed
bdrv_get_info() is categorized as an I/O function, and it currently
doesn't run in a coroutine. We should let it take a graph rdlock since
it traverses the block nodes graph, which however is only possible in a
coroutine.

Therefore turn it into a co_wrapper to move the actual function into a
coroutine where the lock can be taken.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-11-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
82618d7bc3 block: Convert bdrv_get_allocated_file_size() to co_wrapper
bdrv_get_allocated_file_size() is categorized as an I/O function, and it
currently doesn't run in a coroutine. We should let it take a graph
rdlock since it traverses the block nodes graph, which however is only
possible in a coroutine.

Therefore turn it into a co_wrapper to move the actual function into a
coroutine where the lock can be taken.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-10-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
bd53086e82 block: use bdrv_co_refresh_total_sectors when possible
In some places we are sure we are always running in a
coroutine, therefore it's useless to call the generated_co_wrapper,
instead call directly the _co_ function.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-9-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
d886257d84 block-backend: use bdrv_getlength instead of blk_getlength
The only difference is that blk_ checks if the block is available,
but this check is already performed above in blk_check_byte_request().

This is in preparation for the graph rdlock, which will be taken
by both the callers of blk_check_byte_request() and blk_getlength().

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-8-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
c86422c554 block: Convert bdrv_refresh_total_sectors() to co_wrapper_mixed
BlockDriver->bdrv_getlength is categorized as IO callback, and it
currently doesn't run in a coroutine. We should let it take a graph
rdlock since the callback traverses the block nodes graph, which however
is only possible in a coroutine.

Therefore turn it into a co_wrapper to move the actual function into a
coroutine where the lock can be taken.

Because now this function creates a new coroutine and polls, we need to
take the AioContext lock where it is missing, for the only reason that
internally co_wrapper calls AIO_WAIT_WHILE and it expects to release the
AioContext lock.

This is especially messy when a co_wrapper creates a coroutine and polls
in bdrv_open_driver, because this function has so many callers in so
many context that it can easily lead to deadlocks. Therefore the new
rule for bdrv_open_driver is that the caller must always hold the
AioContext lock of the given bs (except if it is a coroutine), because
the function calls bdrv_refresh_total_sectors() which is now a
co_wrapper.

Once the rwlock is ultimated and placed in every place it needs to be,
we will poll using AIO_WAIT_WHILE_UNLOCKED and remove the AioContext
lock.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-7-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
c057960c4e block: Rename refresh_total_sectors to bdrv_refresh_total_sectors
The name is not good, not the least because we are going to convert this
to a generated co_wrapper, which adds a _co infix after the first part
of the name.

No functional change intended.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-6-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
1e97be9156 block: Convert bdrv_is_inserted() to co_wrapper
bdrv_is_inserted() is categorized as an I/O function, and it currently
doesn't run in a coroutine. We should let it take a graph rdlock since
it traverses the block nodes graph, which however is only possible in a
coroutine.

Therefore turn it into a co_wrapper to move the actual function into a
coroutine where the lock can be taken.

At the same time, add also blk_is_inserted as co_wrapper_mixed, since it
is called in both coroutine and non-coroutine contexts.

Because now this function creates a new coroutine and polls, we need to
take the AioContext lock where it is missing, for the only reason that
internally c_w_mixed_bdrv_rdlock calls AIO_WAIT_WHILE and it expects to
release the AioContext lock. Once the rwlock is ultimated and placed in
every place it needs to be, we will poll using AIO_WAIT_WHILE_UNLOCKED
and remove the AioContext lock.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-5-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
09d9fc97f8 block: Convert bdrv_io_unplug() to co_wrapper
BlockDriver->bdrv_io_unplug is categorized as IO callback, and it
currently doesn't run in a coroutine. We should let it take a graph
rdlock since the callback traverses the block nodes graph, which however
is only possible in a coroutine.

The only caller of this function is blk_io_unplug(), therefore make
blk_io_unplug() a co_wrapper, so that we're always running in a
coroutine where the lock can be taken.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-4-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
8f49745432 block: Convert bdrv_io_plug() to co_wrapper
BlockDriver->bdrv_io_plug is categorized as IO callback, and it
currently doesn't run in a coroutine. We should let it take a graph
rdlock since the callback traverses the block nodes graph, which however
is only possible in a coroutine.

The only caller of this function is blk_io_plug(), therefore make
blk_io_plug() a co_wrapper, so that we're always running in a coroutine
where the lock can be taken.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-3-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Emanuele Giuseppe Esposito
5b317b8dd9 block-coroutine-wrapper: support void functions
Just omit the various 'return' when the return type is void.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-2-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:32 +01:00
Kevin Wolf
07a4e1f8e5 qemu-iotests: Test qemu-img bitmap/commit exit code on error
This tests that when an error happens while writing back bitmaps to the
image file in qcow2_inactivate(), 'qemu-img bitmap/commit' actually
return an error value in their exit code instead of making the operation
look successful to scripts.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230112191454.169353-5-kwolf@redhat.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-01 16:52:15 +01:00
Laurent Vivier
c1fc91b825 m68k: fix 'bkpt' instruction in softmmu mode
In linux-user mode, 'bkpt' generates an EXP_DEBUG exception to allow
QEMU gdb server to intercept and manage the operation with an external
debugger.

In softmmu mode, the instruction must generate an illegal instruction
exception as it is on real hardware to be managed by the kernel.

Buglink: https://gitlab.com/qemu-project/qemu/-/issues/1462
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230126125234.3186042-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-01 10:18:21 +01:00
Thomas Huth
e030d08c2f gitlab-ci.d/buildtest: Merge the --without-default-* jobs
Let's safe some CI minutes by merging these two jobs. We can now
also drop "--disable-capstone" since the capstone submodule has
been removed a while ago. We should rather test --disable-fdt now
to check a compilation without the "dtc" submodule (for this we
have to drop i386-softmmu from the target list unfortunately).
Additionally, the qtests with s390x and sh4 are not read for
"--without-default-devices" yet, so we can only test mips64 and
avr here now.

Message-Id: <20230130104446.1286773-5-thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-31 09:05:26 +01:00
Thomas Huth
f2e57851b8 tests/qtest/display-vga-test: Add proper checks if a device is available
display-vga-test currently tries to guess the usable VGA devices
according to the target architecture that is used for the test.
This of course does not work if QEMU has been built with the
"--without-default-devices" configure switch. To fix this, use the
qtest_has_device() function for the decision instead. This way
we can also consolidate most of the test functions into one single
function (that takes a parameter with the device name now), except
for the multihead test that tries to instantiate two devices and
thus is a little bit different.

Message-Id: <20230130104446.1286773-4-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-31 09:05:26 +01:00
Thomas Huth
7c4f71506f gitlab-ci.d/buildtest: Remove ppc-softmmu from the clang-system job
We are also compile-testing ppc64-softmmu with clang in the "tsan-build"
job, and ppc64-softmmu covers pretty much the same code as ppc-softmmu,
so we should not lose much test coverage here by removing ppc-softmmu
from the "clang-system" job.

Message-Id: <20230130104446.1286773-2-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-31 08:56:27 +01:00
Daniel P. Berrangé
7a92a8573c qapi, audio: Make introspection reflect build configuration more closely
Currently the -audiodev accepts any audiodev type regardless of what is
built in to QEMU. An error only occurs later at runtime when a sound
device tries to use the audio backend.

With this change QEMU will immediately reject -audiodev args that are
not compiled into the binary. The QMP schema will also be introspectable
to identify what is compiled in.

This also helps to avoid compiling code that is not required in the
binary. Note: When building the audiodevs as modules, the patch only
compiles out code for modules that we don't build at all.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
[thuth: Rebase, take sndio and dbus devices into account]
Message-Id: <20230123083957.20349-3-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-30 15:43:55 +01:00
Daniel P. Berrangé
637d18090e qapi, audio: add query-audiodev command
Way back in QEMU 4.0, the -audiodev command line option was introduced
for configuring audio backends. This CLI option does not use QemuOpts
so it is not visible for introspection in 'query-command-line-options',
instead using the QAPI Audiodev type.  Unfortunately there is also no
QMP command that uses the Audiodev type, so it is not introspectable
with 'query-qmp-schema' either.

This introduces a 'query-audiodev' command that simply reflects back
the list of configured -audiodev command line options. This alone is
maybe not very useful by itself, but it makes Audiodev introspectable
via 'query-qmp-schema', so that libvirt (and other upper layer tools)
can discover the available audiodevs.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
[thuth: Update for upcoming QEMU v8.0, and use QAPI_LIST_PREPEND]
Message-Id: <20230123083957.20349-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-30 15:43:48 +01:00
Sebastian Mitterle
e59a59a457 docs/s390x/pcidevices: document pci devices on s390x
Add some documentation about the zpci device and how
to use it with pci devices on s390x.

Used source: Cornelia Huck's blog post
https://people.redhat.com/~cohuck/2018/02/19/notes-on-pci-on-s390x.html

Signed-off-by: Sebastian Mitterle <smitterl@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20230127123349.55294-1-smitterl@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-30 13:43:53 +01:00
Marcel Apfelbaum
f5cb612867 docs/pcie.txt: Replace ioh3420 with pcie-root-port
Do not mention ioh3420 in the "how to" doc.
The device still works and can be used by already
existing setups, but no need to be mentioned.

Suggested-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230123174205.683979-1-berrange@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-01-28 06:21:30 -05:00
Greg Kurz
4382138f64 Revert "vhost-user: Introduce nested event loop in vhost_user_read()"
This reverts commit a7f523c7d1.

The nested event loop is broken by design. It's only user was removed.
Drop the code as well so that nobody ever tries to use it again.

I had to fix a couple of trivial conflicts around return values because
of 025faa872b ("vhost-user: stick to -errno error return convention").

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20230119172424.478268-3-groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2023-01-28 06:21:30 -05:00