Commit Graph

2384 Commits

Author SHA1 Message Date
Mateusz Krawczuk
1f8da027dd Add information how to fix common build error on Windows in symlink-install-tree
By default, Windows doesn't allow to create soft links for user account
and only administrator is allowed to do this. To fix this problem you have
to raise your permissions or enable Developer Mode, which available since
Windows 10. Additional explanation when build fails will allow developer
to fix the problem on his computer faster.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1386
Signed-off-by: Mateusz Krawczuk <mat.krawczuk@gmail.com>
Message-Id: <20230504211101.1386-1-mat.krawczuk@gmail.com>
[thuth: Drop the hunk with the white space changes]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-05-16 09:14:18 +02:00
Richard Henderson
d530697ca2 Testing updates:
- fix up xtensa docker container base to current Debian
   - document breakpoint and watchpoint support
   - clean up the ansible scripts for Ubuntu 22.04
   - add a minimal device profile
   - drop https on mipsdistros URL
   - fix Kconfig bug for XLNX_VERSAL
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Merge tag 'pull-testing-updates-100523-1' of https://gitlab.com/stsquad/qemu into staging

Testing updates:

  - fix up xtensa docker container base to current Debian
  - document breakpoint and watchpoint support
  - clean up the ansible scripts for Ubuntu 22.04
  - add a minimal device profile
  - drop https on mipsdistros URL
  - fix Kconfig bug for XLNX_VERSAL

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* tag 'pull-testing-updates-100523-1' of https://gitlab.com/stsquad/qemu:
  hw/arm: Select XLNX_USB_SUBSYS for xlnx-zcu102 machine
  tests/avocado: use http for mipsdistros.mips.com
  gitlab: enable minimal device profile for aarch64 --disable-tcg
  gitlab: add ubuntu-22.04-aarch64-without-defaults
  scripts/ci: clean-up the 20.04/22.04 confusion in ansible
  scripts/ci: add gitlab-runner to kvm group
  docs: document breakpoint and watchpoint support
  tests/docker: bump the xtensa base to debian:11-slim

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-10 16:43:01 +01:00
Alex Bennée
c1924cde87 scripts/ci: clean-up the 20.04/22.04 confusion in ansible
We have a bunch of references to 20.04 (which s390x is still on)
although we are basically building on 22.04 now. Clean up the textual
references and use lcitool to generate the full package list to be
consistent.

We can drop "Install packages to build QEMU on Ubuntu on non-s390x" as
when we upgrade the s390x builder to 22.04 it won't need this
workaround.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230503091244.1450613-19-alex.bennee@linaro.org>
2023-05-10 16:01:00 +01:00
Alex Bennée
02f4947603 scripts/ci: add gitlab-runner to kvm group
One of the main reasons to have custom runners it so we can run KVM
tests. Enable the "kvm" additional group so we can access the feature
on the kernel.

Message-Id: <20230503091244.1450613-5-alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
2023-05-10 15:58:19 +01:00
Richard Henderson
caa9cbd566 Block layer patches
- Graph locking, part 3 (more block drivers)
 - Compile out assert_bdrv_graph_readable() by default
 - Add configure options for vmdk, vhdx and vpc
 - Fix use after free in blockdev_mark_auto_del()
 - migration: Attempt disk reactivation in more failure scenarios
 - Coroutine correctness fixes
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Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- Graph locking, part 3 (more block drivers)
- Compile out assert_bdrv_graph_readable() by default
- Add configure options for vmdk, vhdx and vpc
- Fix use after free in blockdev_mark_auto_del()
- migration: Attempt disk reactivation in more failure scenarios
- Coroutine correctness fixes

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* tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (28 commits)
  block: compile out assert_bdrv_graph_readable() by default
  block: Mark bdrv_refresh_limits() and callers GRAPH_RDLOCK
  block: Mark bdrv_recurse_can_replace() and callers GRAPH_RDLOCK
  block: Mark bdrv_query_block_graph_info() and callers GRAPH_RDLOCK
  block: Mark bdrv_query_bds_stats() and callers GRAPH_RDLOCK
  block: Mark BlockDriver callbacks for amend job GRAPH_RDLOCK
  block: Mark bdrv_co_debug_event() GRAPH_RDLOCK
  block: Mark bdrv_co_get_info() and callers GRAPH_RDLOCK
  block: Mark bdrv_co_get_allocated_file_size() and callers GRAPH_RDLOCK
  mirror: Require GRAPH_RDLOCK for accessing a node's parent list
  vhdx: Require GRAPH_RDLOCK for accessing a node's parent list
  nbd: Mark nbd_co_do_establish_connection() and callers GRAPH_RDLOCK
  nbd: Remove nbd_co_flush() wrapper function
  block: .bdrv_open is non-coroutine and unlocked
  graph-lock: Fix GRAPH_RDLOCK_GUARD*() to be reader lock
  graph-lock: Add GRAPH_UNLOCKED(_PTR)
  test-bdrv-drain: Don't modify the graph in coroutines
  iotests: Test resizing image attached to an iothread
  block: Don't call no_coroutine_fns in qmp_block_resize()
  block: bdrv/blk_co_unref() for calls in coroutine context
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-10 14:52:03 +01:00
Stefan Hajnoczi
58a2e3f5c3 block: compile out assert_bdrv_graph_readable() by default
reader_count() is a performance bottleneck because the global
aio_context_list_lock mutex causes thread contention. Put this debugging
assertion behind a new ./configure --enable-debug-graph-lock option and
disable it by default.

The --enable-debug-graph-lock option is also enabled by the more general
--enable-debug option.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230501173443.153062-1-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-05-10 14:16:54 +02:00
Vladimir Sementsov-Ogievskiy
11cea42e17 block: add configure options for excluding vmdk, vhdx and vpc
Let's add --enable / --disable configure options for these formats,
so that those who don't need them may not build them.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20230421092758.814122-1-vsementsov@yandex-team.ru>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-05-10 14:15:13 +02:00
Markus Armbruster
eb59cf7628 qapi: Section parameter @indent is no longer used, drop
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-15-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2023-05-10 10:01:01 +02:00
Markus Armbruster
08349786c8 qapi: Relax doc string @name: description indentation rules
The QAPI schema doc comment language provides special syntax for
command and event arguments, struct and union members, alternate
branches, enumeration values, and features: descriptions starting with
"@name:".

By convention, we format them like this:

    # @name: Lorem ipsum dolor sit amet, consectetur adipiscing elit,
    #        sed do eiusmod tempor incididunt ut labore et dolore
    #        magna aliqua.

Okay for names as short as "name", but we have much longer ones.  Their
description gets squeezed against the right margin, like this:

    # @dirty-sync-missed-zero-copy: Number of times dirty RAM synchronization could
    #                               not avoid copying dirty pages. This is between
    #                               0 and @dirty-sync-count * @multifd-channels.
    #                               (since 7.1)

The description text is effectively just 50 characters wide.  Easy
enough to read, but can be cumbersome to write.

The awkward squeeze against the right margin makes people go beyond it,
which produces two undesirables: arguments about style, and descriptions
that are unnecessarily hard to read, like this one:

    # @postcopy-vcpu-blocktime: list of the postcopy blocktime per vCPU.  This is
    #                           only present when the postcopy-blocktime migration capability
    #                           is enabled. (Since 3.0)

We could instead format it like

    # @postcopy-vcpu-blocktime:
    # list of the postcopy blocktime per vCPU.  This is only present
    # when the postcopy-blocktime migration capability is
    # enabled. (Since 3.0)

or, since the commit before previous, like

    # @postcopy-vcpu-blocktime:
    # 	  list of the postcopy blocktime per vCPU.  This is only present
    # 	  when the postcopy-blocktime migration capability is
    # 	  enabled. (Since 3.0)

However, I'd rather have

    # @postcopy-vcpu-blocktime: list of the postcopy blocktime per vCPU.
    #     This is only present when the postcopy-blocktime migration
    #     capability is enabled.  (Since 3.0)

because this is how rST field and option lists work.

To get this, we need to let the first non-blank line after the
"@name:" line determine expected indentation.

This fills up the indentation pitfall mentioned in
docs/devel/qapi-code-gen.rst.  A related pitfall still exists.  Update
the text to show it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-14-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[Work around lack of walrus operator in Python 3.7 and older]
2023-05-10 10:00:40 +02:00
Markus Armbruster
3e32dca3f0 qapi: Rewrite parsing of doc comment section symbols and tags
To recognize a line starting with a section symbol and or tag, we
first split it at the first space, then examine the part left of the
space.  We can just as well examine the unsplit line, so do that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-13-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[Work around lack of walrus operator in Python 3.7 and older]
2023-05-10 09:34:17 +02:00
Markus Armbruster
9b2c6746d3 qapi: Fix argument description indentation stripping
When an argument's description starts on the line after the "#arg: "
line, indentation is stripped only from the description's first line,
as demonstrated by the previous commit.  Moreover, subsequent lines
with less indentation are not rejected.

Make the first line's indentation the expected indentation for the
remainder of the description.  This fixes indentation stripping, and
also requires at least that much indentation.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-12-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2023-05-09 09:12:48 +02:00
Markus Armbruster
5b5fe0e018 qapi: Fix crash on stray double quote character
When the lexer chokes on a stray character, its shows the characters
until the next structural character in the error message.  It uses a
regular expression to match a non-empty string of non-structural
characters.  Bug: the regular expression treats '"' as structural.
When the lexer chokes on '"', the match fails, and trips
must_match()'s assertion.  Fix the regular expression.

Fixes: 14c3279502 (qapi: Improve reporting of lexical errors)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-4-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2023-05-09 08:51:58 +02:00
Dorinda Bassey
c2d3d1c294 audio/pwaudio.c: Add Pipewire audio backend for QEMU
This commit adds a new audiodev backend to allow QEMU to use Pipewire as
both an audio sink and source. This backend is available on most systems

Add Pipewire entry points for QEMU Pipewire audio backend
Add wrappers for QEMU Pipewire audio backend in qpw_pcm_ops()
qpw_write function returns the current state of the stream to pwaudio
and Writes some data to the server for playback streams using pipewire
spa_ringbuffer implementation.
qpw_read function returns the current state of the stream to pwaudio and
reads some data from the server for capture streams using pipewire
spa_ringbuffer implementation. These functions qpw_write and qpw_read
are called during playback and capture.
Added some functions that convert pw audio formats to QEMU audio format
and vice versa which would be needed in the pipewire audio sink and
source functions qpw_init_in() & qpw_init_out().
These methods that implement playback and recording will create streams
for playback and capture that will start processing and will result in
the on_process callbacks to be called.
Built a connection to the Pipewire sound system server in the
qpw_audio_init() method.

Signed-off-by: Dorinda Bassey <dbassey@redhat.com>
Reviewed-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20230417105654.32328-1-dbassey@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2023-05-05 13:23:08 +04:00
Richard Henderson
7c18f2d663 * Fix compilation issues under Debian 10
* Update kernel headers to 6.3rc5
 * Suppress GCC13 false positive in aio_bh_poll()
 * Add new x86 feature bits
 * Coverity fixes
 * More steps towards removing qatomic_mb_set/read
 * Fix reduced-phys-bits value for AMD SEV
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* Fix compilation issues under Debian 10
* Update kernel headers to 6.3rc5
* Suppress GCC13 false positive in aio_bh_poll()
* Add new x86 feature bits
* Coverity fixes
* More steps towards removing qatomic_mb_set/read
* Fix reduced-phys-bits value for AMD SEV

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# gpg: Signature made Sat 29 Apr 2023 01:19:14 PM BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [undefined]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
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# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  cpus-common: stop using mb_set/mb_read
  async: Suppress GCC13 false positive in aio_bh_poll()
  tests: vhost-user-test: release mutex on protocol violation
  Update linux headers to v6.3rc5
  update-linux-headers.sh: Add missing kernel headers.
  Fix libvhost-user.c compilation.
  target/i386: Add support for PREFETCHIT0/1 in CPUID enumeration
  target/i386: Add support for AVX-NE-CONVERT in CPUID enumeration
  target/i386: Add support for AVX-VNNI-INT8 in CPUID enumeration
  target/i386: Add support for AVX-IFMA in CPUID enumeration
  target/i386: Add support for AMX-FP16 in CPUID enumeration
  target/i386: Add support for CMPCCXADD in CPUID enumeration
  i386/cpu: Update how the EBX register of CPUID 0x8000001F is set
  i386/sev: Update checks and information related to reduced-phys-bits
  qemu-options.hx: Update the reduced-phys-bits documentation
  qapi, i386/sev: Change the reduced-phys-bits value from 5 to 1

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-04-29 23:07:17 +01:00
David 'Digit' Turner
9fc7dd234f update-linux-headers.sh: Add missing kernel headers.
Add <linux/memfd.h>, used by hw/display/virtio-gpu-udmabuf.c
Add <linux/nvme_ioctl.h>, used by qga/commands-posix.c
Add <linux/const.h> used by kvm-all.c, which requires
the _BITUL() macro definition to be available.

Without these, QEMU will not compile on Debian 10 systems.

Signed-off-by: David 'Digit' Turner <digit@google.com>
Message-Id: <20230405172109.3081788-3-digit@google.com>
[Add <linux/stddef.h> for __DECLARE_FLEX_ARRAY. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-04-28 14:03:52 +02:00
Alexander Bulekov
ef56ffbdd6 checkpatch: add qemu_bh_new/aio_bh_new checks
Advise authors to use the _guarded versions of the APIs, instead.

Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <20230427211013.2994127-4-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-04-28 11:31:54 +02:00
Thomas Huth
8b869aa591 scripts/device-crash-test: Add a parameter to run with TCG only
We're currently facing the problem that the device-crash-test script
runs twice as long in the CI when a runner supports KVM - which sometimes
results in a timeout of the CI job. To get a more deterministic runtime
here, add an option to the script that allows to run it with TCG only.

Reported-by: Eldon Stegall <eldon-qemu@eldondev.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230414145845.456145-3-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230424092249.58552-6-alex.bennee@linaro.org>
2023-04-27 14:58:11 +01:00
Peter Xu
a67cceb071 vmstate-static-checker: Recognize "num" field
Recognize this field for VMS_ARRAY typed vmsd fields, then we can do proper
size matching with previous patch.

Note that this is compatible with old -dump-vmstate output, because when
"num" is not there we'll still use the old "size" only.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-04-27 10:18:26 +02:00
Richard Henderson
c3f9aa8e48 QAPI patches patches for 2023-04-26
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Merge tag 'pull-qapi-2023-04-26' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2023-04-26

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* tag 'pull-qapi-2023-04-26' of https://repo.or.cz/qemu/armbru:
  qapi: allow unions to contain further unions
  qapi: Improve specificity of type/member descriptions
  qapi: support updating expected test output via make
  qapi: Require boxed for conditional command and event arguments
  qapi: Fix code generated for optional conditional struct member
  tests/qapi-schema: Cover optional conditional struct member
  tests/qapi-schema: Clean up positive test for conditionals
  tests/qapi-schema: Rename a few conditionals
  tests/qapi-schema: Improve union discriminator coverage
  qapi: Fix to reject 'data': 'mumble' in struct
  qapi: Fix error message when type name or array is expected
  qapi: Simplify code a bit after previous commits
  qapi: Improve error message for unexpected array types
  qapi: Split up check_type()
  qapi: Clean up after removal of simple unions
  qapi/schema: Use super()
  qapi: Fix error message format regression

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-04-26 07:23:32 +01:00
Daniel P. Berrangé
a17dbc4b79 qapi: allow unions to contain further unions
This extends the QAPI schema validation to permit unions inside unions,
provided the checks for clashing fields pass.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230420102619.348173-4-berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2023-04-26 07:52:45 +02:00
Markus Armbruster
1e148b545f qapi: Improve specificity of type/member descriptions
Error messages describe object members, enumeration values, features,
and variants like ROLE 'NAME', where ROLE is "member", "value",
"feature", or "branch", respectively.  When the member is defined in
another type, e.g. inherited from a base type, we add "of type
'TYPE'".  Example: test case struct-base-clash-deep reports a member
of type 'Sub' clashing with a member of its base type 'Base' as

    struct-base-clash-deep.json: In struct 'Sub':
    struct-base-clash-deep.json:10: member 'name' collides with member 'name' of type 'Base'

Members of implicitly defined types need special treatment.  We don't
want to add "of type 'TYPE'" for them, because their named are made up
and mean nothing to the user.  Instead, we describe members of an
implicitly defined base type as "base member 'NAME'", and command and
event parameters as "parameter 'NAME'".  Example: test case
union-bad-base reports member of a variant's type clashing with a
member of its implicitly defined base type as

    union-bad-base.json: In union 'TestUnion':
    union-bad-base.json:8: member 'string' of type 'TestTypeA' collides with base member 'string'

The next commit will permit unions as variant types.  "base member
'NAME' would then be ambigious: is it the union's base, or is it the
union's variant's base?  One of its test cases would report a clash
between two such bases as "base member 'type' collides with base
member 'type'".  Confusing.

Refine the special treatment: add "of TYPE" even for implicitly
defined types, but massage TYPE and ROLE so they make sense for the
user.

Message-Id: <20230420102619.348173-3-berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2023-04-26 07:52:14 +02:00
Richard Henderson
a14b8206c5 virtio,pc,pci: fixes, features, cleanups
Mostly just fixes, cleanups all over the place.
 Some optimizations.
 More control over slot_reserved_mask.
 More feature bits supported for SVQ.
 
 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: fixes, features, cleanups

Mostly just fixes, cleanups all over the place.
Some optimizations.
More control over slot_reserved_mask.
More feature bits supported for SVQ.

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: (31 commits)
  hw/pci-bridge: Make PCIe and CXL PXB Devices inherit from TYPE_PXB_DEV
  hw/pci-bridge: pci_expander_bridge fix type in pxb_cxl_dev_reset()
  docs/specs: Convert pci-testdev.txt to rst
  docs/specs: Convert pci-serial.txt to rst
  docs/specs/pci-ids: Convert from txt to rST
  acpi: pcihp: allow repeating hot-unplug requests
  virtio: i2c: Check notifier helpers for VIRTIO_CONFIG_IRQ_IDX
  docs: Remove obsolete descriptions of SR-IOV support
  intel_iommu: refine iotlb hash calculation
  docs/cxl: Fix sentence
  MAINTAINERS: Add Eugenio Pérez as vhost-shadow-virtqueue reviewer
  tests: bios-tables-test: replace memset with initializer
  hw/acpi: limit warning on acpi table size to pc machines older than version 2.3
  Add my old and new work email mapping and use work email to support acpi
  vhost-user-blk-server: notify client about disk resize
  pci: avoid accessing slot_reserved_mask directly outside of pci.c
  hw: Add compat machines for 8.1
  hw/i386/amd_iommu: Factor amdvi_pci_realize out of amdvi_sysbus_realize
  hw/i386/amd_iommu: Set PCI static/const fields via PCIDeviceClass
  hw/i386/amd_iommu: Move capab_offset from AMDVIState to AMDVIPCIState
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-04-25 09:13:27 +01:00
Thomas De Schampheleire
9d672e2904 tracetool: use relative paths for '#line' preprocessor directives
The event filename is an absolute path. Convert it to a relative path when
writing '#line' directives, to preserve reproducibility of the generated
output when different base paths are used.

Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230406080045.21696-1-thomas.de_schampheleire@nokia.com>
2023-04-24 13:53:44 -04:00
Markus Armbruster
de3b3f529d qapi: Require boxed for conditional command and event arguments
The C code generator fails to honor 'if' conditions of command and
event arguments.

For instance, tests/qapi-schema/qapi-schema-test.json has

    { 'event': 'TEST_IF_EVENT',
      'data': { 'foo': 'TestIfStruct',
		'bar': { 'type': ['str'], 'if': 'TEST_IF_EVT_ARG' } },
      'if': { 'all': ['TEST_IF_EVT', 'TEST_IF_STRUCT'] } }

Generated tests/test-qapi-events.h fails to honor the TEST_IF_EVT_ARG
condition:

    #if defined(TEST_IF_EVT) && defined(TEST_IF_STRUCT)
    void qapi_event_send_test_if_event(TestIfStruct *foo, strList *bar);
    #endif /* defined(TEST_IF_EVT) && defined(TEST_IF_STRUCT) */

Only uses so far are in tests/.

We could fix the generator to emit something like

    #if defined(TEST_IF_EVT) && defined(TEST_IF_STRUCT)
    void qapi_event_send_test_if_event(TestIfStruct *foo
    #if defined(TEST_IF_EVT_ARG)
                    , strList *bar
    #endif
                    );
    #endif /* defined(TEST_IF_EVT) && defined(TEST_IF_STRUCT) */

Ugly.  Calls become similarly ugly.  Not worth fixing.

Conditional arguments work fine with 'boxed': true, simply because
complex types with conditional members work fine.  Not worth breaking.

Reject conditional arguments unless boxed.

Move the tests cases covering unboxed conditional arguments out of
tests/qapi-schema/qapi-schema-test.json.  Cover boxed conditional
arguments there instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-15-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2023-04-24 15:21:39 +02:00
Markus Armbruster
713d921aed qapi: Fix code generated for optional conditional struct member
The generated member visit neglects to emit #if around a conditional
struct member's has_ variable.  For instance,
tests/qapi-schema/qapi-schema-test.json generates

    #if defined(TEST_IF_STRUCT)
    bool visit_type_TestIfStruct_members(Visitor *v, TestIfStruct *obj, Error **errp)
    {
--->	bool has_baz = !!obj->baz;

	if (!visit_type_int(v, "foo", &obj->foo, errp)) {
	    return false;
	}
    #if defined(TEST_IF_STRUCT_MEMBER)
	if (!visit_type_int(v, "bar", &obj->bar, errp)) {
	    return false;
	}
    #endif /* defined(TEST_IF_STRUCT_MEMBER) */
    #if defined(TEST_IF_STRUCT_MEMBER)
	if (visit_optional(v, "baz", &has_baz)) {
	    if (!visit_type_str(v, "baz", &obj->baz, errp)) {
		return false;
	    }
	}
    #endif /* defined(TEST_IF_STRUCT_MEMBER) */
	return true;
    }
    [...]
    #endif /* defined(TEST_IF_STRUCT) */

Won't compile when TEST_IF_STRUCT is defined and TEST_IF_STRUCT_MEMBER
isn't.

Fix that the obvious way:

    #if defined(TEST_IF_STRUCT_MEMBER)
	bool has_baz = !!obj->baz;
    #endif /* defined(TEST_IF_STRUCT_MEMBER) */

Fixes: 44ea9d9be3 (qapi: Start to elide redundant has_FOO in generated C)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-14-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2023-04-24 15:21:39 +02:00
Markus Armbruster
e2050ef633 qapi: Fix to reject 'data': 'mumble' in struct
A struct's 'data' must be a JSON object defining the struct's members.
The QAPI code generator incorrectly accepts a JSON string instead, and
then crashes in QAPISchema._make_members() called from
._def_struct_type().

Fix to reject it: factor check_type_implicit() out of
check_type_name_or_implicit(), and switch check_struct() to use it
instead.  Also add a test case.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-9-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[More detailed commit message]
2023-04-24 15:21:39 +02:00
Markus Armbruster
6f2ab6090d qapi: Fix error message when type name or array is expected
We incorrectly report "FOO should be a type name" when it could also
be an array.  Fix that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-8-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2023-04-24 15:21:39 +02:00
Markus Armbruster
7c4075190d qapi: Simplify code a bit after previous commits
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-7-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Commit message corrected]
2023-04-24 15:21:39 +02:00
Markus Armbruster
2a0c975f86 qapi: Improve error message for unexpected array types
We reject array types in certain places with "cannot be an array".
Deleting this check improves the error message to "should be a type
name" or "should be an object or type name", depending on context, so
do that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-6-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-04-24 15:21:39 +02:00
Markus Armbruster
06cc46eeaf qapi: Split up check_type()
check_type() can check type names, arrays, and implicit struct types.
Callers pass flags to select from this menu.  This makes the function
somewhat hard to read.  Moreover, a few minor bugs are hiding in
there, as we'll see shortly.

Split it into check_type_name(), check_type_name_or_array(), and
check_type_name_or_implicit().  Each of them is a copy of the original
specialized to a certain set of flags.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-5-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Commit message corrected]
2023-04-24 15:21:28 +02:00
Markus Armbruster
607045ba39 qapi: Clean up after removal of simple unions
Commit 4e99f4b12c (qapi: Drop simple unions) missed a bit of code
dealing with simple union branches.  Drop it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-4-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2023-04-24 15:09:34 +02:00
Markus Armbruster
ecee568ef9 qapi/schema: Use super()
Commit 2cae67bcb5 (qapi: Use super() now we have Python 3) converted
the code to super().  Shortly after, commit f965e8fea6 (qapi: New
special feature flag "deprecated") neglected to use super().  Convert
it now.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-3-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-04-24 15:09:24 +02:00
Markus Armbruster
bc5d303164 qapi: Fix error message format regression
Commit 52a474180a changed reporting of errors connected to a source
location without mentioning it in the commit message.  For instance,

    $ python scripts/qapi-gen.py tests/qapi-schema/unknown-escape.json
    tests/qapi-schema/unknown-escape.json:3:21: unknown escape \x

became

    scripts/qapi-gen.py: tests/qapi-schema/unknown-escape.json:3:21: unknown escape \x

This is not how compilers report such errors, and Emacs doesn't
recognize the format.  Revert this change.

Fixes: 52a474180a (qapi-gen: Separate arg-parsing from generation)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230316071325.492471-2-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2023-04-24 15:09:10 +02:00
Thomas Huth
0f220121a4 meson_options.txt: Enable qom-cast-debug by default again
This switch had been disabled by default by accident in commit
c55cf6ab03. But we should enable it by default instead to avoid
regressions in the QOM device hierarchy.

Fixes: c55cf6ab03 ("configure, meson: move some default-disabled options to meson_options.txt")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230417130037.236747-3-thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-04-21 04:25:52 -04:00
Paolo Bonzini
32a9d73579 coverity: unify Fedora dockerfiles
The Fedora CI and coverity runs are using a slightly different set of
packages.  Copy most of the content over from tests/docker while
keeping the commands at the end that unpack the tools.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20230331174844.376300-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-04-20 11:17:36 +02:00
Paolo Bonzini
cf9d4e68d7 qapi-gen: mark coroutine QMP command functions as coroutine_fn
Coroutine commands have to be declared as coroutine_fn, but the
marker does not show up in the qapi-comands-* headers; likewise, the
marshaling function calls the command and therefore must be coroutine_fn.
Static analysis would want coroutine_fn to match between prototype and
declaration, because in principle coroutines might be compiled to a
completely different calling convention.  So we would like to add the
marker to the header.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-04-20 11:17:35 +02:00
Paolo Bonzini
cc03dfa827 coverity: update COMPONENTS.md
Hexagon is split into two components because it has hundreds of false positives
in the generated files.

capstone and slirp have been removed.

hw/nvme is added to block.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-04-20 11:17:35 +02:00
Marc-André Lureau
bc848265bc mtest2make.py: teach suite name that are just "PROJECT"
A subproject test may be simply in the "PROJECT" suite (such as
"qemu-common" with the following patches)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230302131848.1527460-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-04-20 11:17:34 +02:00
Alex Bennée
899c3fc2dc scripts/coverage: initial coverage comparison script
This is a very rough and ready first pass at comparing gcovr's json
output between two different runs. At the moment it will give you a
file level diff between two runs but hopefully it wont be too hard to
extend to give better insight.

After generating the coverage results you run with something like:

  ./scripts/coverage/compare_gcov_json.py \
    -a ./builds/gcov.config1/coverage.json \
    -b ./builds/gcov.config2/coverage.json

My hope is we can use this to remove some redundancy from testing as
well as evaluate if new tests are actually providing additional
coverage or just burning our precious CI time.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Kautuk Consul <kconsul@linux.vnet.ibm.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230403134920.2132362-2-alex.bennee@linaro.org>
2023-04-04 15:16:29 +01:00
Alex Bennée
82790dfefc scripts/ci: update gitlab-runner playbook to handle CentOS
This was broken when we moved to using the pre-built packages as we
didn't take care to ensure we used RPMs where required.

NB: I could never get this to complete on my test setup but I suspect
this was down to network connectivity and timeouts while downloading.

Fixes: 69c4befba1 (scripts/ci: update gitlab-runner playbook to use latest runner)
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230315174331.2959-5-alex.bennee@linaro.org>
2023-03-22 15:06:57 +00:00
Alex Bennée
6df250e181 scripts/ci: add libslirp-devel to build-environment
Without libslip enabled we won't have user networking which means the
KVM tests won't run.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230315174331.2959-4-alex.bennee@linaro.org>
2023-03-22 15:06:57 +00:00
Akihiko Odaki
f9757020bf tests/avocado: Add igb test
This automates ethtool tests for igb registers, interrupts, etc.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-10 17:26:47 +08:00
Alex Bennée
bcbc36a98f testing: probe gdb for supported architectures ahead of time
Currently when we encounter a gdb that is old or not built with
multiarch in mind we fail rather messily. Try and improve the
situation by probing ahead of time and setting
HOST_GDB_SUPPORTS_ARCH=y in the relevant tcg configs. We can then skip
and give a more meaningful message if we don't run the test.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230302190846.2593720-24-alex.bennee@linaro.org>
Message-Id: <20230303025805.625589-24-richard.henderson@linaro.org>
2023-03-07 20:44:09 +00:00
Richard Henderson
29c87a281e tracing: remove transform.py
This file, and a couple of uses, got left behind when the
tcg stuff was removed from tracetool.

Fixes: 126d4123c5 ("tracing: excise the tcg related from tracetool")
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05 13:44:08 -08:00
Peter Maydell
6276340310 - buildsys
- Various header cleaned up (removing pointless headers)
   - Mark various files/code user/system specific
   - Make various objects target-independent
   - Remove tswapN() calls from dump.o
   - Suggest g_assert_not_reached() instead of assert(0)
 
 - qdev / qom
   - Replace various container_of() by QOM cast macros
   - Declare some QOM macros using OBJECT_DECLARE_TYPE()
   - Embed OHCI QOM child in SM501 chipset
 
 - hw (ISA & IDE)
   - add some documentation, improve function names
   - un-inline, open-code few functions
   - have ISA API accessing IRQ/DMA prefer ISABus over ISADevice
   - Demote IDE subsystem maintenance to "Odd Fixes"
 
 - ui: Improve Ctrl+Alt hint on Darwin Cocoa
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Merge tag 'buildsys-qom-qdev-ui-20230227' of https://github.com/philmd/qemu into staging

- buildsys
  - Various header cleaned up (removing pointless headers)
  - Mark various files/code user/system specific
  - Make various objects target-independent
  - Remove tswapN() calls from dump.o
  - Suggest g_assert_not_reached() instead of assert(0)

- qdev / qom
  - Replace various container_of() by QOM cast macros
  - Declare some QOM macros using OBJECT_DECLARE_TYPE()
  - Embed OHCI QOM child in SM501 chipset

- hw (ISA & IDE)
  - add some documentation, improve function names
  - un-inline, open-code few functions
  - have ISA API accessing IRQ/DMA prefer ISABus over ISADevice
  - Demote IDE subsystem maintenance to "Odd Fixes"

- ui: Improve Ctrl+Alt hint on Darwin Cocoa

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# gpg: Signature made Mon 27 Feb 2023 21:34:24 GMT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
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# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* tag 'buildsys-qom-qdev-ui-20230227' of https://github.com/philmd/qemu: (125 commits)
  ui/cocoa: user friendly characters for release mouse
  dump: Add create_win_dump() stub for non-x86 targets
  dump: Simplify compiling win_dump.o by introducing win_dump_available()
  dump: Clean included headers
  dump: Replace TARGET_PAGE_SIZE -> qemu_target_page_size()
  dump: Replace tswapN() -> cpu_to_dumpN()
  hw/ide/pci: Add PCIIDEState::isa_irq[]
  hw/ide/via: Replace magic 2 value by ARRAY_SIZE / MAX_IDE_DEVS
  hw/ide/piix: Refactor pci_piix_init_ports as pci_piix_init_bus per bus
  hw/ide/piix: Pass Error* to pci_piix_init_ports() for better error msg
  hw/ide/piix: Remove unused includes
  hw/ide/pci: Unexport bmdma_active_if()
  hw/ide/ioport: Remove unnecessary includes
  hw/ide: Declare ide_get_[geometry/bios_chs_trans] in 'hw/ide/internal.h'
  hw/ide: Rename idebus_active_if() -> ide_bus_active_if()
  hw/ide: Rename ide_init2() -> ide_bus_init_output_irq()
  hw/ide: Rename ide_exec_cmd() -> ide_bus_exec_cmd()
  hw/ide: Rename ide_register_restart_cb -> ide_bus_register_restart_cb
  hw/ide: Rename ide_create_drive() -> ide_bus_create_drive()
  hw/ide: Rename ide_set_irq() -> ide_bus_set_irq()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-28 15:09:18 +00:00
Philippe Mathieu-Daudé
837cd584f4 scripts/checkpatch.pl: Do not allow assert(0)
Since commit 262a69f428 ("osdep.h: Prohibit disabling assert()
in supported builds") we can not build QEMU with NDEBUG (or
G_DISABLE_ASSERT) defined, thus 'assert(0)' always aborts QEMU.

However some static analyzers / compilers doesn't notice NDEBUG
can't be defined and emit warnings if code is used after an
'assert(0)' call.

Apparently such compiler isn't as clever with G_DISABLE_ASSERT,
so we can silent these warnings by using g_assert_not_reached()
which is easier to read anyway.

In order to avoid these annoying warnings, add a checkpatch rule
to prohibit 'assert(0)'. Suggest using g_assert_not_reached()
instead. For example when reverting the previous patch we get:

  ERROR: use g_assert_not_reached() instead of assert(0)
  #21: FILE: target/ppc/dfp_helper.c:124:
  +            assert(0); /* cannot get here */

  ERROR: use g_assert_not_reached() instead of assert(0)
  #30: FILE: target/ppc/dfp_helper.c:141:
  +            assert(0); /* cannot get here */

  total: 2 errors, 0 warnings, 16 lines checked

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230221232520.14480-3-philmd@linaro.org>
2023-02-27 22:29:02 +01:00
John Snow
1b1be8d3cc meson: stop looking for 'sphinx-build-3'
Once upon a time, "sphinx-build" on certain RPM platforms invoked
specifically a Python 2.x version, while "sphinx-build-3" was a distro
shim for the Python 3.x version.

These days, none of our supported platforms utilize a 2.x version, and
those that still have 'sphinx-build-3' make it a symbolic link to
'sphinx-build'.  Not searching for 'sphinx-build-3' will prefer
pip/venv installed versions of sphinx if they're available.

This adds an extremely convenient ability to test document building
ability in QEMU across multiple versions of Sphinx for the purposes of
compatibility testing.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20230221012456.2607692-6-jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-02-27 11:01:30 +01:00
Markus Armbruster
1248a15965 meson: Avoid duplicates in generated config-poison.h again
Commit eed56e9a89 "configure, meson: move config-poison.h to meson"
lost a "| sort -u".  Restore it.  config-poison shrinks from ~4500 to
~700 lines when all targets are enabled.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230206102037.3621709-1-armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-02-27 09:18:56 +01:00
John Snow
c7b7a7ded9 qapi: remove JSON value FIXME
With the two major JSON-ish type hierarchies clarified for distinct
purposes; QAPIExpression for parsed expressions and JSONValue for
introspection data, remove this FIXME as no longer an action item.

A third JSON-y data type, _ExprValue, is not meant to represent JSON in
the abstract but rather only the possible legal return values from a
single function, get_expr(). It isn't appropriate to attempt to merge it
with either of the above two types.

In theory, it may be possible to define a completely agnostic
one-size-fits-all JSON type hierarchy that any other user could borrow -
in practice, it's tough to wrangle the differences between invariant,
covariant and contravariant types: input and output parameters demand
different properties of such a structure.

However, QAPIExpression serves to authoritatively type user input to the
QAPI parser, while JSONValue serves to authoritatively type qapi
generator *output* to be served back to client users at runtime via
QMP. The AST for these two types are different and cannot be wholly
merged into a unified syntax.

They could, in theory, share some JSON primitive definitions. In
practice, this is currently more trouble than it's worth with mypy's
current expressive power. As such, declare this "done enough for now".

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20230215000011.1725012-7-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2023-02-23 13:01:45 +01:00
John Snow
67a81f9fb7 qapi: remove _JSONObject
We can remove this alias as it only has two usages now, and no longer
pays for the confusion of "yet another type".

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20230215000011.1725012-6-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2023-02-23 13:01:45 +01:00