Commit Graph

112682 Commits

Author SHA1 Message Date
Thomas Huth
4d6ae2df56 .travis.yml: Do some more testing with Clang
We are doing a lot of cross-compilation tests with GCC in the gitlab-CI
already, so we could get some more test coverage by using Clang in the
Travis-CI instead. Thus let's switch two additional jobs to use Clang
for compilation.

Message-ID: <20240320104144.823425-7-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Thomas Huth
66163bc7d7 .travis.yml: Update the jobs to Ubuntu 22.04
According to our support policy, we'll soon drop our official support
for Ubuntu 20.04 ("Focal Fossa") in QEMU. Thus we should update the
Travis jobs now to a newer release (Ubuntu 22.04 - "Jammy Jellyfish")
for future testing. Since all jobs are using this release now, we
can drop the entries from the individual jobs and use the global
setting again.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240418101056.302103-6-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Thomas Huth
aeb99d0772 .travis.yml: Remove the unused UNRELIABLE environment variable
This variable was used to allow jobs to fail without spoiling the
overall result. But the required "allow_failures:" hunk has been
accidentally removed in commit 9d03f5abed ("travis.yml: Remove the
"Release tarball" job"), and it was anyway only useful while we
still had the x86 jobs here around that were our main CI jobs.
Thus let's simply remove this useless variable now.

Message-ID: <20240320104144.823425-6-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Thomas Huth
6705587adb Revert ".travis.yml: Cache Avocado cache"
This reverts commit c1073e44b4.

The Avocado tests have been removed from Travis a long time ago with
commit c5008c76ee ("gitlab: add acceptance testing to system builds"),
so we don't need to cache the avocado files here anymore.

Message-ID: <20240320104144.823425-4-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Brad Smith
5e279f38c7 tests/vm: update openbsd image to 7.5
tests/vm: update openbsd to release 7.5

Signed-off-by: Brad Smith <brad@comstyle.com>
Message-ID: <ZhaDVpNjq_ZifvPT@humpty.home.comstyle.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Zhao Liu
838f82468a docs: i386: pc: Update maximum CPU numbers for PC Q35
Commit e4e98c7eeb ("pc: q35: Bump max_cpus to 4096 vcpus") increases
the supported CPUs for PC Q35 machine.

Update maximum CPU numbers for PC Q35 in the document.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240412085358.731560-1-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Inès Varhol
58045186fc tests/qtest : Use g_assert_cmphex instead of g_assert_cmpuint
The messages for assertions using hexadecimal numbers will be
easier to understand with `g_assert_cmphex`.

Cases changed : "cmpuint.*0x", "cmpuint.*<<"

Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ninad Palsule <ninad@linux.ibm.com>
Message-ID: <20240414173349.31194-1-ines.varhol@telecom-paris.fr>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Peter Lieven
cbd58e7cc2 MAINTAINERS: update email of Peter Lieven
I will leave KAMP in the next days. Update email to stay reachable.

Signed-off-by: Peter Lieven <pl@kamp.de>
Message-ID: <20230105095039.182718-1-pl@kamp.de>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Richard Henderson
5da72194df meson: Make DEBUG_REMAP a meson option
target/m68k: Support semihosting on non-ColdFire targets
 linux-user: do_setsockopt cleanups
 linux-user: Add FITRIM ioctl
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Merge tag 'pull-tcg-20240424' of https://gitlab.com/rth7680/qemu into staging

meson: Make DEBUG_REMAP a meson option
target/m68k: Support semihosting on non-ColdFire targets
linux-user: do_setsockopt cleanups
linux-user: Add FITRIM ioctl

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* tag 'pull-tcg-20240424' of https://gitlab.com/rth7680/qemu:
  target/m68k: Support semihosting on non-ColdFire targets
  target/m68k: Perform the semihosting test during translate
  target/m68k: Pass semihosting arg to exit
  linux-user: Add FITRIM ioctl
  linux-user: do_setsockopt: eliminate goto in switch for SO_SNDTIMEO
  linux-user: do_setsockopt: make ip_mreq_source local to the place where it is used
  linux-user: do_setsockopt: make ip_mreq local to the place it is used and inline target_to_host_ip_mreq()
  linux-user: do_setsockopt: fix SOL_ALG.ALG_SET_KEY
  meson: Make DEBUG_REMAP a meson option

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:51:49 -07:00
Keith Packard
0815c228bd target/m68k: Support semihosting on non-ColdFire targets
According to the m68k semihosting spec:

"The instruction used to trigger a semihosting request depends on the
 m68k processor variant.  On ColdFire, "halt" is used; on other processors
 (which don't implement "halt"), "bkpt #0" may be used."

Add support for non-CodeFire processors by matching BKPT #0 instructions.

Signed-off-by: Keith Packard <keithp@keithp.com>
[rth: Use semihosting_test()]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Richard Henderson
f161e723fd target/m68k: Perform the semihosting test during translate
Replace EXCP_HALT_INSN by EXCP_SEMIHOSTING.  Perform the pre-
and post-insn tests during translate, leaving only the actual
semihosting operation for the exception.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Keith Packard
5fae5110ee target/m68k: Pass semihosting arg to exit
Instead of using d0 (the semihost function number), use d1 (the
provide exit status).

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230802161914.395443-2-keithp@keithp.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Michael Vogt
7048fc59ef linux-user: Add FITRIM ioctl
Tiny patch to add the missing FITRIM ioctl.

Signed-off-by: Michael Vogt <mvogt@redhat.com>
Message-Id: <20240403092048.16023-2-michael.vogt@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Michael Tokarev
88a722b6ad linux-user: do_setsockopt: eliminate goto in switch for SO_SNDTIMEO
There's identical code for SO_SNDTIMEO and SO_RCVTIMEO, currently
implemented using an ugly goto into another switch case.  Eliminate
that using arithmetic if, making code flow more natural.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <20240331100737.2724186-5-mjt@tls.msk.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Michael Tokarev
166bd92e3b linux-user: do_setsockopt: make ip_mreq_source local to the place where it is used
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <20240331100737.2724186-4-mjt@tls.msk.ru>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Michael Tokarev
124a1341a6 linux-user: do_setsockopt: make ip_mreq local to the place it is used and inline target_to_host_ip_mreq()
ip_mreq is declared at the beginning of do_setsockopt(), while
it is used in only one place.  Move its declaration to that very
place and replace pointer to alloca()-allocated memory with the
structure itself.

target_to_host_ip_mreq() is used only once, inline it.

This change also properly handles TARGET_EFAULT when the address
is wrong.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <20240331100737.2724186-3-mjt@tls.msk.ru>
[rth: Fix braces, adjust optlen to match host structure size]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Michael Tokarev
04f6fb897a linux-user: do_setsockopt: fix SOL_ALG.ALG_SET_KEY
This setsockopt accepts zero-lengh optlen (current qemu implementation
does not allow this).  Also, there's no need to make a copy of the key,
it is enough to use lock_user() (which accepts zero length already).

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2197
Fixes: f31dddd2fc "linux-user: Add support for setsockopt() option SOL_ALG"
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <20240331100737.2724186-2-mjt@tls.msk.ru>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Ilya Leoshkevich
1f2355f53c meson: Make DEBUG_REMAP a meson option
Currently DEBUG_REMAP is a macro that needs to be manually #defined to
be activated, which makes it hard to have separate build directories
dedicated to testing the code with it. Promote it to a meson option.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240312002402.14344-1-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 15:46:00 -07:00
Richard Henderson
85b597413d Removal of deprecated code
- Remove the Nios II target and hardware
 - Remove pvrdma device and rdmacm-mux helper
 - Remove GlusterFS RDMA protocol handling
 - Update Sriram Yagnaraman mail address
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Merge tag 'housekeeping-20240424' of https://github.com/philmd/qemu into staging

Removal of deprecated code

- Remove the Nios II target and hardware
- Remove pvrdma device and rdmacm-mux helper
- Remove GlusterFS RDMA protocol handling
- Update Sriram Yagnaraman mail address

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* tag 'housekeeping-20240424' of https://github.com/philmd/qemu:
  block/gluster: Remove deprecated RDMA protocol handling
  hw/rdma: Remove deprecated pvrdma device and rdmacm-mux helper
  hw/timer: Remove the ALTERA_TIMER model
  target/nios2: Remove the deprecated Nios II target
  MAINTAINERS: Update Sriram Yagnaraman mail address

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 11:49:57 -07:00
Richard Henderson
bffc14efd9 QAPI patches patches for 2024-04-24
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Merge tag 'pull-qapi-2024-04-24' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2024-04-24

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* tag 'pull-qapi-2024-04-24' of https://repo.or.cz/qemu/armbru: (25 commits)
  qapi: Dumb down QAPISchema.lookup_entity()
  qapi: Tighten check whether implicit object type already exists
  qapi/schema: remove unnecessary asserts
  qapi/schema: turn on mypy strictness
  qapi/schema: add type hints
  qapi/parser.py: assert member.info is present in connect_member
  qapi/parser: demote QAPIExpression to Dict[str, Any]
  qapi/schema: assert inner type of QAPISchemaVariants in check_clash()
  qapi/schema: fix typing for QAPISchemaVariants.tag_member
  qapi/schema: Don't initialize "members" with `None`
  qapi/schema: add _check_complete flag
  qapi/schema: assert info is present when necessary
  qapi/schema: fix QAPISchemaArrayType.check's call to resolve_type
  qapi: Assert built-in types exist
  qapi/schema: assert resolve_type has 'info' and 'what' args on error
  qapi/schema: add type narrowing to lookup_type()
  qapi/schema: adjust type narrowing for mypy's benefit
  qapi/schema: make c_type() and json_type() abstract methods
  qapi/schema: declare type for QAPISchemaArrayType.element_type
  qapi/schema: declare type for QAPISchemaObjectTypeMember.type
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 09:23:33 -07:00
Richard Henderson
1e0a7549e1 Error reporting patches for 2024-04-24
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Merge tag 'pull-error-2024-04-24' of https://repo.or.cz/qemu/armbru into staging

Error reporting patches for 2024-04-24

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# gpg: Signature made Wed 24 Apr 2024 12:52:58 AM PDT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [undefined]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [undefined]
# 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: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-error-2024-04-24' of https://repo.or.cz/qemu/armbru:
  qapi: Inline and remove QERR_PROPERTY_VALUE_BAD definition
  qapi: Inline and remove QERR_MIGRATION_ACTIVE definition
  qapi: Correct error message for 'vcpu_dirty_limit' parameter
  qapi: Inline and remove QERR_INVALID_PARAMETER_TYPE definition
  qapi: Inline QERR_INVALID_PARAMETER_TYPE definition (constant value)
  qapi: Inline and remove QERR_INVALID_PARAMETER definition
  qapi: Inline and remove QERR_DEVICE_NO_HOTPLUG definition
  qapi: Inline and remove QERR_DEVICE_HAS_NO_MEDIUM definition
  qapi: Inline and remove QERR_BUS_NO_HOTPLUG definition
  error: Drop superfluous #include "qapi/qmp/qerror.h"

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24 09:22:42 -07:00
Philippe Mathieu-Daudé
2d9cbbea64 block/gluster: Remove deprecated RDMA protocol handling
GlusterFS+RDMA has been deprecated 8 years ago in commit
0552ff2465 ("block/gluster: deprecate rdma support"):

  gluster volfile server fetch happens through unix and/or tcp,
  it doesn't support volfile fetch over rdma. The rdma code may
  actually mislead, so to make sure things do not break, for now
  we fallback to tcp when requested for rdma, with a warning.

  If you are wondering how this worked all these days, its the
  gluster libgfapi code which handles anything other than unix
  transport as socket/tcp, sad but true.

Besides, the whole RDMA subsystem was deprecated in commit
e9a54265f5 ("hw/rdma: Deprecate the pvrdma device and the rdma
subsystem") released in v8.2.

Cc: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20240328130255.52257-4-philmd@linaro.org>
2024-04-24 16:03:38 +02:00
Philippe Mathieu-Daudé
1dfd42c426 hw/rdma: Remove deprecated pvrdma device and rdmacm-mux helper
The whole RDMA subsystem was deprecated in commit e9a54265f5
("hw/rdma: Deprecate the pvrdma device and the rdma subsystem")
released in v8.2.

Remove:
 - PVRDMA device
 - generated vmw_pvrdma/ directory from linux-headers
 - rdmacm-mux tool from contrib/

Cc: Yuval Shaia <yuval.shaia.ml@gmail.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20240328130255.52257-2-philmd@linaro.org>
2024-04-24 16:03:38 +02:00
Philippe Mathieu-Daudé
a60e53fa8f hw/timer: Remove the ALTERA_TIMER model
The ALTERA_TIMER was only used by Nios II machines,
which have been removed. Since it has no direct user,
remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240327144806.11319-4-philmd@linaro.org>
2024-04-24 16:03:38 +02:00
Philippe Mathieu-Daudé
6c3014858c target/nios2: Remove the deprecated Nios II target
The Nios II target is deprecated since v8.2 in commit 9997771bc1
("target/nios2: Deprecate the Nios II architecture").

Remove:
- Buildsys / CI infra
- User emulation
- System emulation (10m50-ghrd & nios2-generic-nommu machines)
- Tests

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Message-Id: <20240327144806.11319-3-philmd@linaro.org>
2024-04-24 16:03:38 +02:00
Sriram Yagnaraman
92360d6e62 MAINTAINERS: Update Sriram Yagnaraman mail address
Due to company policies, I have changed my mail address. Updating
MAINTAINERS and .mailmap to show my latest mail address.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@ericsson.com>
Message-ID: <20240228080625.2412372-1-sriram.yagnaraman@ericsson.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-24 16:03:38 +02:00
Markus Armbruster
060b5a9323 qapi: Dumb down QAPISchema.lookup_entity()
QAPISchema.lookup_entity() takes an optional type argument, a subtype
of QAPISchemaDefinition, and returns that type or None.  Callers can
use this to save themselves an isinstance() test.

The only remaining user of this convenience feature is .lookup_type().
But we don't actually save anything anymore there: we still need the
isinstance() to help mypy over the hump.

Drop the .lookup_entity() argument, and adjust .lookup_type().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-26-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
[Commit message typo fixed]
2024-04-24 10:03:54 +02:00
Markus Armbruster
99e75d8c2a qapi: Tighten check whether implicit object type already exists
Entities with names starting with q_obj_ are implicit object types.
Therefore, QAPISchema._make_implicit_object_type()'s .lookup_entity()
can only return a QAPISchemaObjectType.  Assert that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-25-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
8d413dbd5d qapi/schema: remove unnecessary asserts
With strict typing enabled, these runtime statements aren't necessary
anymore; we can prove them statically.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-24-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
aa1fed9f54 qapi/schema: turn on mypy strictness
This patch can be rolled in with the previous one once the series is
ready for merge, but for work-in-progress' sake, it's separate here.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-23-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
4ed3fe0822 qapi/schema: add type hints
This patch only adds type hints, which aren't utilized at runtime and
don't change the behavior of this module in any way.

In a scant few locations, type hints are removed where no longer
necessary due to inference power from typing all of the rest of
creation; and any type hints that no longer need string quotes are
changed.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-22-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
d5e2f3d03c qapi/parser.py: assert member.info is present in connect_member
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-21-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
7c6e446476 qapi/parser: demote QAPIExpression to Dict[str, Any]
Dict[str, object] is a stricter type, but with the way that code is
currently arranged, it is infeasible to enforce this strictness.

In particular, although expr.py's entire raison d'être is normalization
and type-checking of QAPI Expressions, that type information is not
"remembered" in any meaningful way by mypy because each individual
expression is not downcast to a specific expression type that holds all
the details of each expression's unique form.

As a result, all of the code in schema.py that deals with actually
creating type-safe specialized structures has no guarantee (myopically)
that the data it is being passed is correct.

There are two ways to solve this:

(1) Re-assert that the incoming data is in the shape we expect it to be, or
(2) Disable type checking for this data.

(1) is appealing to my sense of strictness, but I gotta concede that it
is asinine to re-check the shape of a QAPIExpression in schema.py when
expr.py has just completed that work at length. The duplication of code
and the nightmare thought of needing to update both locations if and
when we change the shape of these structures makes me extremely
reluctant to go down this route.

(2) allows us the chance to miss updating types in the case that types
are updated in expr.py, but it *is* an awful lot simpler and,
importantly, gets us closer to type checking schema.py *at
all*. Something is better than nothing, I'd argue.

So, do the simpler dumber thing and worry about future strictness
improvements later.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-20-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
7e09dd686f qapi/schema: assert inner type of QAPISchemaVariants in check_clash()
QAPISchemaVariant's "variants" field is typed as
List[QAPISchemaVariant], where the typing for QAPISchemaVariant allows
its type field to be any QAPISchemaType.

However, QAPISchemaVariant expects that all of its variants contain the
narrower QAPISchemaObjectType. This relationship is enforced at runtime
in QAPISchemaVariants.check(). This relationship is not embedded in the
type system though, so QAPISchemaVariants.check_clash() needs to
re-assert this property in order to call
QAPISchemaVariant.type.check_clash().

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-19-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
583f4d6fdd qapi/schema: fix typing for QAPISchemaVariants.tag_member
There are two related changes here:

(1) We need to perform type narrowing for resolving the type of
    tag_member during check(), and

(2) tag_member is a delayed initialization field, but we can hide it
    behind a property that raises an Exception if it's called too
    early. This simplifies the typing in quite a few places and avoids
    needing to assert that the "tag_member is not None" at a dozen
    callsites, which can be confusing and suggest the wrong thing to a
    drive-by contributor.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-18-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
9beda22dcb qapi/schema: Don't initialize "members" with None
Declare, but don't initialize the "members" field with type
List[QAPISchemaObjectTypeMember].

This simplifies the typing from what would otherwise be
Optional[List[T]] to merely List[T]. This removes the need to add
assertions to several callsites that this value is not None - which it
never will be after the delayed initialization in check() anyway.

The type declaration without initialization trick will cause accidental
uses of this field prior to full initialization to raise an
AttributeError.

(Note that it is valid to have an empty members list, see the internal
q_empty object as an example. For this reason, we cannot use the empty
list as a replacement test for full initialization and instead rely on
the _checked/_check_complete fields.)

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-17-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
875f624232 qapi/schema: add _check_complete flag
Instead of using the None value for the members field, use a dedicated
flag to detect recursive misconfigurations.

This is intended to assist with subsequent patches that seek to remove
the "None" value from the members field (which can never hold that value
after the final call to check()) in order to simplify the static typing
of that field; avoiding the need of assertions littered at many
callsites to eliminate the possibility of the None value.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-16-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
8b9e7fd3b3 qapi/schema: assert info is present when necessary
QAPISchemaInfo arguments can often be None because built-in definitions
don't have such information.  The type hint can only be
Optional[QAPISchemaInfo] then.  But, mypy gets upset about all the
places where we exploit that it can't actually be None there.  Add
assertions that will help mypy over the hump, to enable adding type
hints in a forthcoming commit.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-15-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
8c91329ff0 qapi/schema: fix QAPISchemaArrayType.check's call to resolve_type
Adjust the expression at the callsite to work around mypy's weak type
introspection that believes this expression can resolve to
QAPISourceInfo; it cannot.

(Fundamentally: self.info only resolves to false in a boolean expression
when it is None; therefore this expression may only ever produce
Optional[str]. mypy does not know that 'info', when it is a
QAPISourceInfo object, cannot ever be false.)

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-14-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
Markus Armbruster
7191400a44 qapi: Assert built-in types exist
QAPISchema.lookup_type('FOO') returns a QAPISchemaType when type 'FOO'
exists, else None.  It won't return None for built-in types like
'int'.

Since mypy can't see that, it'll complain that we assign the
Optional[QAPISchemaType] returned by .lookup_type() to QAPISchemaType
variables.

Add assertions to help it over the hump.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-13-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
802a3e3f74 qapi/schema: assert resolve_type has 'info' and 'what' args on error
resolve_type() is generally used to resolve configuration-provided type
names into type objects, and generally requires valid 'info' and 'what'
parameters.

In some cases, such as with QAPISchemaArrayType.check(), resolve_type
may be used to resolve built-in types and as such will not have an
'info' argument, but also must not fail in this scenario.

Use an assertion to sate mypy that we will indeed have 'info' and 'what'
parameters for the error pathway in resolve_type.

Note: there are only three callsites to resolve_type at present where
"info" is perceived by mypy to be possibly None:

    1) QAPISchemaArrayType.check()
    2) QAPISchemaObjectTypeMember.check()
    3) QAPISchemaEvent.check()

    Of those three, only the first actually ever passes None; the other two
    are limited by their base class initializers which accept info=None, but
    neither subclass actually use a None value in practice, currently.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-12-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
10755a9536 qapi/schema: add type narrowing to lookup_type()
This function is a bit hard to type as-is; mypy needs some assertions to
assist with the type narrowing.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-11-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
9bda6c7d11 qapi/schema: adjust type narrowing for mypy's benefit
We already take care to perform some type narrowing for arg_type and
ret_type, but not in a way where mypy can utilize the result once we add
type hints, e.g.:

qapi/schema.py:833: error: Incompatible types in assignment (expression
has type "QAPISchemaType", variable has type
"Optional[QAPISchemaObjectType]") [assignment]

qapi/schema.py:893: error: Incompatible types in assignment (expression
has type "QAPISchemaType", variable has type
"Optional[QAPISchemaObjectType]") [assignment]

A simple change to use a temporary variable helps the medicine go down.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-10-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
d150be3d54 qapi/schema: make c_type() and json_type() abstract methods
These methods should always return a str, it's only the default abstract
implementation that doesn't. They can be marked "abstract", which
requires subclasses to override the method with the proper return type.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-9-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
578cd9329b qapi/schema: declare type for QAPISchemaArrayType.element_type
A QAPISchemaArrayType's element type gets resolved only during .check().
We have QAPISchemaArrayType.__init__() initialize self.element_type =
None, and .check() assign the actual type.  Using .element_type before
.check() is wrong, and hopefully crashes due to the value being None.
Works.

However, it makes for awkward typing.  With .element_type:
Optional[QAPISchemaType], mypy is of course unable to see that it's None
before .check(), and a QAPISchemaType after.  To help it over the hump,
we'd have to assert self.element_type is not None before all the (valid)
uses.  The assertion catches invalid uses, but only at run time; mypy
can't flag them.

Instead, declare .element_type in .__init__() as QAPISchemaType
*without* initializing it.  Using .element_type before .check() now
certainly crashes, which is an improvement.  Mypy still can't flag
invalid uses, but that's okay.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-8-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
ec103961bf qapi/schema: declare type for QAPISchemaObjectTypeMember.type
A QAPISchemaObjectTypeMember's type gets resolved only during .check().
We have QAPISchemaObjectTypeMember.__init__() initialize self.type =
None, and .check() assign the actual type.  Using .type before .check()
is wrong, and hopefully crashes due to the value being None.  Works.

However, it makes for awkward typing.  With .type:
Optional[QAPISchemaType], mypy is of course unable to see that it's None
before .check(), and a QAPISchemaType after.  To help it over the hump,
we'd have to assert self.type is not None before all the (valid) uses.
The assertion catches invalid uses, but only at run time; mypy can't
flag them.

Instead, declare .type in .__init__() as QAPISchemaType *without*
initializing it.  Using .type before .check() now certainly crashes,
which is an improvement.  Mypy still can't flag invalid uses, but that's
okay.

Addresses typing errors such as these:

qapi/schema.py:657: error: "None" has no attribute "alternate_qtype"  [attr-defined]
qapi/schema.py:662: error: "None" has no attribute "describe"  [attr-defined]

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-7-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
2418d1c43a qapi: create QAPISchemaDefinition
Include entities don't have names, but we generally expect "entities" to
have names. Reclassify all entities with names as *definitions*, leaving
the nameless include entities as QAPISchemaEntity instances.

This is primarily to help simplify typing around expectations of what
callers expect for properties of an "entity".

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-6-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
ce7fde0630 qapi/schema: add pylint suppressions
With this patch, pylint is happy with the file, so enable it in the
configuration.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-5-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
cebc18810a qapi: sort pylint suppressions
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-4-armbru@redhat.com>
2024-04-24 10:03:54 +02:00
John Snow
2daf52df8b qapi/parser: shush up pylint
Shhh!

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240315152301.3621858-3-armbru@redhat.com>
2024-04-24 10:03:54 +02:00