| Message ID | 20210924140142.31398-2-peter.maydell@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | qapi: Move RTC_CHANGE back out of target schema | expand |
On Fri, 24 Sep 2021 15:01:41 +0100 Peter Maydell <peter.maydell@linaro.org> wrote: > This commit effectively reverts commit 183e4281a30962, which moved > the RTC_CHANGE event to the target schema. That change was an > attempt to make the event target-specific to improve introspection, > but the event isn't really target-specific: it's machine or device > specific. Putting RTC_CHANGE in the target schema with an ifdef list > reduces maintainability (by adding an if: list with a long list of > targets that needs to be manually updated as architectures are added > or removed or as new devices gain the RTC_CHANGE functionality) and > increases compile time (by preventing RTC devices which emit the > event from being "compile once" rather than "compile once per > target", because qapi-events-misc-target.h uses TARGET_* ifdefs, > which are poisoned in "compile once" files.) > > Move RTC_CHANGE back to misc.json. > > Signed-off-by: Peter Maydell <peter.maydell@linaro.org> > --- For the ppc part, Acked-by: Greg Kurz <groug@kaod.org> > qapi/misc-target.json | 33 --------------------------------- > qapi/misc.json | 22 ++++++++++++++++++++++ > hw/ppc/spapr_rtc.c | 2 +- > hw/rtc/mc146818rtc.c | 2 +- > 4 files changed, 24 insertions(+), 35 deletions(-) > > diff --git a/qapi/misc-target.json b/qapi/misc-target.json > index 3b05ad3dbfb..f442421e838 100644 > --- a/qapi/misc-target.json > +++ b/qapi/misc-target.json > @@ -2,39 +2,6 @@ > # vim: filetype=python > # > > -## > -# @RTC_CHANGE: > -# > -# Emitted when the guest changes the RTC time. > -# > -# @offset: offset between base RTC clock (as specified by -rtc base), and > -# new RTC clock value > -# > -# Note: This event is rate-limited. > -# > -# Since: 0.13 > -# > -# Example: > -# > -# <- { "event": "RTC_CHANGE", > -# "data": { "offset": 78 }, > -# "timestamp": { "seconds": 1267020223, "microseconds": 435656 } } > -# > -## > -{ 'event': 'RTC_CHANGE', > - 'data': { 'offset': 'int' }, > - 'if': { 'any': [ 'TARGET_ALPHA', > - 'TARGET_ARM', > - 'TARGET_HPPA', > - 'TARGET_I386', > - 'TARGET_MIPS', > - 'TARGET_MIPS64', > - 'TARGET_PPC', > - 'TARGET_PPC64', > - 'TARGET_S390X', > - 'TARGET_SH4', > - 'TARGET_SPARC' ] } } > - > ## > # @rtc-reset-reinjection: > # > diff --git a/qapi/misc.json b/qapi/misc.json > index 5c2ca3b5566..ce7edd3f7bf 100644 > --- a/qapi/misc.json > +++ b/qapi/misc.json > @@ -523,3 +523,25 @@ > 'data': { '*option': 'str' }, > 'returns': ['CommandLineOptionInfo'], > 'allow-preconfig': true } > + > +## > +# @RTC_CHANGE: > +# > +# Emitted when the guest changes the RTC time. > +# > +# @offset: offset between base RTC clock (as specified by -rtc base), and > +# new RTC clock value > +# > +# Note: This event is rate-limited. > +# > +# Since: 0.13 > +# > +# Example: > +# > +# <- { "event": "RTC_CHANGE", > +# "data": { "offset": 78 }, > +# "timestamp": { "seconds": 1267020223, "microseconds": 435656 } } > +# > +## > +{ 'event': 'RTC_CHANGE', > + 'data': { 'offset': 'int' } } > diff --git a/hw/ppc/spapr_rtc.c b/hw/ppc/spapr_rtc.c > index fba4dfca358..7a185d45400 100644 > --- a/hw/ppc/spapr_rtc.c > +++ b/hw/ppc/spapr_rtc.c > @@ -32,7 +32,7 @@ > #include "hw/ppc/spapr.h" > #include "migration/vmstate.h" > #include "qapi/error.h" > -#include "qapi/qapi-events-misc-target.h" > +#include "qapi/qapi-events-misc.h" > #include "qemu/cutils.h" > #include "qemu/module.h" > > diff --git a/hw/rtc/mc146818rtc.c b/hw/rtc/mc146818rtc.c > index 4fbafddb226..5ecf96142a1 100644 > --- a/hw/rtc/mc146818rtc.c > +++ b/hw/rtc/mc146818rtc.c > @@ -40,7 +40,7 @@ > #include "hw/rtc/mc146818rtc_regs.h" > #include "migration/vmstate.h" > #include "qapi/error.h" > -#include "qapi/qapi-events-misc-target.h" > +#include "qapi/qapi-events-misc.h" > #include "qapi/visitor.h" > #include "hw/rtc/mc146818rtc_regs.h" >
diff --git a/qapi/misc-target.json b/qapi/misc-target.json index 3b05ad3dbfb..f442421e838 100644 --- a/qapi/misc-target.json +++ b/qapi/misc-target.json @@ -2,39 +2,6 @@ # vim: filetype=python # -## -# @RTC_CHANGE: -# -# Emitted when the guest changes the RTC time. -# -# @offset: offset between base RTC clock (as specified by -rtc base), and -# new RTC clock value -# -# Note: This event is rate-limited. -# -# Since: 0.13 -# -# Example: -# -# <- { "event": "RTC_CHANGE", -# "data": { "offset": 78 }, -# "timestamp": { "seconds": 1267020223, "microseconds": 435656 } } -# -## -{ 'event': 'RTC_CHANGE', - 'data': { 'offset': 'int' }, - 'if': { 'any': [ 'TARGET_ALPHA', - 'TARGET_ARM', - 'TARGET_HPPA', - 'TARGET_I386', - 'TARGET_MIPS', - 'TARGET_MIPS64', - 'TARGET_PPC', - 'TARGET_PPC64', - 'TARGET_S390X', - 'TARGET_SH4', - 'TARGET_SPARC' ] } } - ## # @rtc-reset-reinjection: # diff --git a/qapi/misc.json b/qapi/misc.json index 5c2ca3b5566..ce7edd3f7bf 100644 --- a/qapi/misc.json +++ b/qapi/misc.json @@ -523,3 +523,25 @@ 'data': { '*option': 'str' }, 'returns': ['CommandLineOptionInfo'], 'allow-preconfig': true } + +## +# @RTC_CHANGE: +# +# Emitted when the guest changes the RTC time. +# +# @offset: offset between base RTC clock (as specified by -rtc base), and +# new RTC clock value +# +# Note: This event is rate-limited. +# +# Since: 0.13 +# +# Example: +# +# <- { "event": "RTC_CHANGE", +# "data": { "offset": 78 }, +# "timestamp": { "seconds": 1267020223, "microseconds": 435656 } } +# +## +{ 'event': 'RTC_CHANGE', + 'data': { 'offset': 'int' } } diff --git a/hw/ppc/spapr_rtc.c b/hw/ppc/spapr_rtc.c index fba4dfca358..7a185d45400 100644 --- a/hw/ppc/spapr_rtc.c +++ b/hw/ppc/spapr_rtc.c @@ -32,7 +32,7 @@ #include "hw/ppc/spapr.h" #include "migration/vmstate.h" #include "qapi/error.h" -#include "qapi/qapi-events-misc-target.h" +#include "qapi/qapi-events-misc.h" #include "qemu/cutils.h" #include "qemu/module.h" diff --git a/hw/rtc/mc146818rtc.c b/hw/rtc/mc146818rtc.c index 4fbafddb226..5ecf96142a1 100644 --- a/hw/rtc/mc146818rtc.c +++ b/hw/rtc/mc146818rtc.c @@ -40,7 +40,7 @@ #include "hw/rtc/mc146818rtc_regs.h" #include "migration/vmstate.h" #include "qapi/error.h" -#include "qapi/qapi-events-misc-target.h" +#include "qapi/qapi-events-misc.h" #include "qapi/visitor.h" #include "hw/rtc/mc146818rtc_regs.h"
This commit effectively reverts commit 183e4281a30962, which moved the RTC_CHANGE event to the target schema. That change was an attempt to make the event target-specific to improve introspection, but the event isn't really target-specific: it's machine or device specific. Putting RTC_CHANGE in the target schema with an ifdef list reduces maintainability (by adding an if: list with a long list of targets that needs to be manually updated as architectures are added or removed or as new devices gain the RTC_CHANGE functionality) and increases compile time (by preventing RTC devices which emit the event from being "compile once" rather than "compile once per target", because qapi-events-misc-target.h uses TARGET_* ifdefs, which are poisoned in "compile once" files.) Move RTC_CHANGE back to misc.json. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- qapi/misc-target.json | 33 --------------------------------- qapi/misc.json | 22 ++++++++++++++++++++++ hw/ppc/spapr_rtc.c | 2 +- hw/rtc/mc146818rtc.c | 2 +- 4 files changed, 24 insertions(+), 35 deletions(-)