Migration pull 2021-02-08
v2
Dropped vmstate: Fix memory leak in vmstate_handle_alloc
Broke on Power
Added migration: only check page size match if RAM postcopy is enabled
# gpg: Signature made Mon 08 Feb 2021 11:28:14 GMT
# gpg: using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7
* remotes/dgilbert/tags/pull-migration-20210208a: (27 commits)
migration: only check page size match if RAM postcopy is enabled
migration: introduce snapshot-{save, load, delete} QMP commands
iotests: fix loading of common.config from tests/ subdir
iotests: add support for capturing and matching QMP events
migration: introduce a delete_snapshot wrapper
migration: wire up support for snapshot device selection
migration: control whether snapshots are ovewritten
block: rename and alter bdrv_all_find_snapshot semantics
block: allow specifying name of block device for vmstate storage
block: add ability to specify list of blockdevs during snapshot
migration: stop returning errno from load_snapshot()
migration: Make save_snapshot() return bool, not 0/-1
block: push error reporting into bdrv_all_*_snapshot functions
migration: Display the migration blockers
migration: Add blocker information
migration: Fix a few absurdly defective error messages
migration: Fix cache_init()'s "Failed to allocate" error messages
migration: Clean up signed vs. unsigned XBZRLE cache-size
migration: Fix migrate-set-parameters argument validation
migration: introduce 'userfaultfd-wrlat.py' script
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In the modules that we are checking so far, we can be stricter about the
difference between Optional[T] and T types. Enable that check.
Enabling it now will assist review on further typing and cleanup work.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210201193747.2169670-17-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
For everything typed so far, type this parameter as
Optional[QAPISourceInfo].
In the most generic case, QAPISchemaEntity's info field may be None to
represent types that come from built-in definitions. Although some
Entity types may not currently have any built-in definitions, it is not
easily possible to constrain the type except on an ad-hoc basis using
assertions.
It's easier and simpler, then, to just say it's always an Optional type.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210201193747.2169670-16-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
QAPISchemaGenCommandVisitor.visit_command() needs to generate the
marshalling function into the current module, and also generate its
registration into the ./init system module. The latter is done
somewhat awkwardly: .__init__() creates a QAPIGenCCode that will not
be written out, each .visit_command() adds its registration to it, and
.visit_end() copies its contents into the ./init module it creates.
Instead provide the means to temporarily switch to another module.
Create the ./init module in .visit_begin(), and generate its initial
part. Add registrations to it in .visit_command(). Finish it in
.visit_end().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210201193747.2169670-14-jsnow@redhat.com>
Many places assume they can access these fields without checking them
first to ensure they are defined. Eliminating the _genc and _genh fields
and replacing them with functional properties that check for correct
state can ease the typing overhead by eliminating the Optional[T] return
type.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210201193747.2169670-12-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
With callers to _add_system_module now explicitly using the './' prefix
to indicate a system module, there is no longer any reason to have
separate interfaces for adding system vs user modules; use a unified
interface that differentiates based on the name.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210201193747.2169670-10-jsnow@redhat.com>
QAPISchemaModularCVisitor._add_system_module() prefixes './' to its name
argument to make it a module name. Pass the module name instead. This
will allow us to coalesce the methods to add modules later on.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210201193747.2169670-8-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message reworded]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
QAPISchemaModularCVisitor._begin_system_module() is actually just for
the builtin module. Rename it to ._begin_builtin_module() and drop
its useless @name parameter.
Clarify conditionals in visit_module to make this clear.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210201193747.2169670-7-jsnow@redhat.com>
When boxed is True, expr.py asserts that we must have
arguments. Ultimately, this should mean that if boxed is True that
arg_type should be defined. Mypy cannot infer this, and does not support
'stateful' type inference, e.g.:
```
if x:
assert y is not None
...
if x:
y.etc()
```
does not work, because mypy does not statefully remember the conditional
assertion in the second block. Help mypy out by creating a new local
that it can track more easily.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210201193747.2169670-2-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
There are some places where the conditional makefile support is the
simplest solution. Now we don't expose CONFIG_TCG as a variable create
a new one that can be checked for the check-help output.
As check-tcg is a PHONY target we re-use check-softfloat to gate that
as well.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210202134001.25738-13-alex.bennee@linaro.org>
Commit 4e66c9ef64 "tracetool: add input filename and line number to
Event" forgot to add a line number and a filename argument at one
build method call site.
Traceback (most recent call last):
File "./scripts/simpletrace.py", line 261, in <module>
run(Formatter())
File "./scripts/simpletrace.py", line 236, in run
process(events, sys.argv[2], analyzer, read_header=read_header)
File "./scripts/simpletrace.py", line 177, in process
dropped_event =
Event.build("Dropped_Event(uint64_t num_events_dropped)")
TypeError: build() missing 2 required positional arguments:
'lineno' and 'filename'
Add the missing arguments.
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210131173415.3392-1-vr_qemu@t-online.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
