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qapi: make the vcpu parameters deprecated for 8.1

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I don't think I can remove the parameters directly but certainly mark
them as deprecated.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230526165401.574474-7-alex.bennee@linaro.org
Message-Id: <20230524133952.3971948-6-alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Alex Bennée 2023-05-26 17:53:56 +01:00 committed by Stefan Hajnoczi
parent 1a8fc85019
commit 5485e52a33
2 changed files with 24 additions and 23 deletions
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7
docs/about/deprecated.rst
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@ -226,6 +226,13 @@ QEMU Machine Protocol (QMP) events
Use the more generic event ``DEVICE_UNPLUG_GUEST_ERROR`` instead.
``vcpu`` trace events (since 8.1)
'''''''''''''''''''''''''''''''''
The ability to instrument QEMU helper functions with vCPU-aware trace
points was removed in 7.0. However QMP still exposed the vcpu
parameter. This argument has now been deprecated and the remaining
remaining trace points that used it are selected just by name.
Human Monitor Protocol (HMP) commands
-------------------------------------

40
qapi/trace.json
View File

@ -37,13 +37,14 @@
#
# @vcpu: Whether this is a per-vCPU event (since 2.7).
#
# An event is per-vCPU if it has the "vcpu" property in the
# "trace-events" files.
# Features:
# @deprecated: Member @vcpu is deprecated, and always ignored.
#
# Since: 2.2
##
{ 'struct': 'TraceEventInfo',
'data': {'name': 'str', 'state': 'TraceEventState', 'vcpu': 'bool'} }
'data': {'name': 'str', 'state': 'TraceEventState',
'vcpu': { 'type': 'bool', 'features': ['deprecated'] } } }
##
# @trace-event-get-state:
@ -52,19 +53,15 @@
#
# @name: Event name pattern (case-sensitive glob).
#
# @vcpu: The vCPU to query (any by default; since 2.7).
# @vcpu: The vCPU to query (since 2.7).
#
# Features:
# @deprecated: Member @vcpu is deprecated, and always ignored.
#
# Returns: a list of @TraceEventInfo for the matching events
#
# An event is returned if:
#
# - its name matches the @name pattern, and
# - if @vcpu is given, the event has the "vcpu" property.
#
# Therefore, if @vcpu is given, the operation will only match per-vCPU
# events, returning their state on the specified vCPU. Special case:
# if @name is an exact match, @vcpu is given and the event does not
# have the "vcpu" property, an error is returned.
# An event is returned if its name matches the @name pattern
# (There are no longer any per-vCPU events).
#
# Since: 2.2
#
@ -75,7 +72,8 @@
# <- { "return": [ { "name": "qemu_memalign", "state": "disabled", "vcpu": false } ] }
##
{ 'command': 'trace-event-get-state',
'data': {'name': 'str', '*vcpu': 'int'},
'data': {'name': 'str',
'*vcpu': {'type': 'int', 'features': ['deprecated'] } },
'returns': ['TraceEventInfo'] }
##
@ -91,15 +89,11 @@
#
# @vcpu: The vCPU to act upon (all by default; since 2.7).
#
# An event's state is modified if:
# Features:
# @deprecated: Member @vcpu is deprecated, and always ignored.
#
# - its name matches the @name pattern, and
# - if @vcpu is given, the event has the "vcpu" property.
#
# Therefore, if @vcpu is given, the operation will only match per-vCPU
# events, setting their state on the specified vCPU. Special case: if
# @name is an exact match, @vcpu is given and the event does not have
# the "vcpu" property, an error is returned.
# An event is enabled if its name matches the @name pattern
# (There are no longer any per-vCPU events).
#
# Since: 2.2
#
@ -111,4 +105,4 @@
##
{ 'command': 'trace-event-set-state',
'data': {'name': 'str', 'enable': 'bool', '*ignore-unavailable': 'bool',
'*vcpu': 'int'} }
'*vcpu': {'type': 'int', 'features': ['deprecated'] } } }