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X-Received-From: 2a00:1450:4864:20::441 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Habkost , Alexey Kardashevskiy , "qemu-devel@nongnu.org" , Markus Armbruster , Stefan Hajnoczi , Philippe Mathieu-Daude Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi On Thu, Nov 28, 2019 at 8:48 PM Felipe Franciosi wrote= : > > Traditionally, the uint-specific property helpers only offer getters. > When adding object (or class) uint types, one must therefore use the > generic property helper if a setter is needed (and probably duplicate > some code writing their own getters/setters). > > This enhances the uint-specific property helper APIs by adding a > bitwise-or'd 'flags' field and modifying all clients of that API to set > this paramater to OBJ_PROP_FLAG_RD. This maintains the current behaviour > whilst allowing others to also set OBJ_PROP_FLAG_WR in the future (which > will automatically install a setter). Other flags may be added later. For readability, I would have the full spelling: OBJECT_PROPERTY_FLAG_READ/OBJECT_PROPERTY_FLAG_WRITE (and an alias OBJECT_PROPERTY_FLAG_READWRITE =3D READ|WRITE) > > Signed-off-by: Felipe Franciosi > --- > hw/acpi/ich9.c | 4 +- > hw/acpi/pcihp.c | 7 +- > hw/acpi/piix4.c | 12 +-- > hw/isa/lpc_ich9.c | 4 +- > hw/ppc/spapr_drc.c | 2 +- > include/qom/object.h | 42 +++++++-- > qom/object.c | 216 ++++++++++++++++++++++++++++++++++++++----- > ui/console.c | 4 +- > 8 files changed, 243 insertions(+), 48 deletions(-) > > diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c > index 2034dd749e..236300d2a9 100644 > --- a/hw/acpi/ich9.c > +++ b/hw/acpi/ich9.c > @@ -454,12 +454,12 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMR= egs *pm, Error **errp) > pm->s4_val =3D 2; > > object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE, > - &pm->pm_io_base, errp); > + &pm->pm_io_base, OBJ_PROP_FLAG_RD, er= rp); > object_property_add(obj, ACPI_PM_PROP_GPE0_BLK, "uint32", > ich9_pm_get_gpe0_blk, > NULL, NULL, pm, NULL); > object_property_add_uint32_ptr(obj, ACPI_PM_PROP_GPE0_BLK_LEN, > - &gpe0_len, errp); > + &gpe0_len, OBJ_PROP_FLAG_RD, errp); > object_property_add_bool(obj, "memory-hotplug-support", > ich9_pm_get_memory_hotplug_support, > ich9_pm_set_memory_hotplug_support, > diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c > index 8413348a33..c8a7194b19 100644 > --- a/hw/acpi/pcihp.c > +++ b/hw/acpi/pcihp.c > @@ -80,7 +80,8 @@ static void *acpi_set_bsel(PCIBus *bus, void *opaque) > > *bus_bsel =3D (*bsel_alloc)++; > object_property_add_uint32_ptr(OBJECT(bus), ACPI_PCIHP_PROP_BSEL= , > - bus_bsel, &error_abort); > + bus_bsel, OBJ_PROP_FLAG_RD, > + &error_abort); > } > > return bsel_alloc; > @@ -373,9 +374,9 @@ void acpi_pcihp_init(Object *owner, AcpiPciHpState *s= , PCIBus *root_bus, > memory_region_add_subregion(address_space_io, s->io_base, &s->io); > > object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_BASE_PROP, &s->i= o_base, > - &error_abort); > + OBJ_PROP_FLAG_RD, &error_abort); > object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_LEN_PROP, &s->io= _len, > - &error_abort); > + OBJ_PROP_FLAG_RD, &error_abort); > } > > const VMStateDescription vmstate_acpi_pcihp_pci_status =3D { > diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c > index 93aec2dd2c..06d964a840 100644 > --- a/hw/acpi/piix4.c > +++ b/hw/acpi/piix4.c > @@ -443,17 +443,17 @@ static void piix4_pm_add_propeties(PIIX4PMState *s) > static const uint16_t sci_int =3D 9; > > object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CM= D, > - &acpi_enable_cmd, NULL); > + &acpi_enable_cmd, OBJ_PROP_FLAG_RD, NU= LL); > object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_C= MD, > - &acpi_disable_cmd, NULL); > + &acpi_disable_cmd, OBJ_PROP_FLAG_RD, N= ULL); > object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK, > - &gpe0_blk, NULL); > + &gpe0_blk, OBJ_PROP_FLAG_RD, NULL); > object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN, > - &gpe0_blk_len, NULL); > + &gpe0_blk_len, OBJ_PROP_FLAG_RD, NULL)= ; > object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT, > - &sci_int, NULL); > + &sci_int, OBJ_PROP_FLAG_RD, NULL); > object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE, > - &s->io_base, NULL); > + &s->io_base, OBJ_PROP_FLAG_RD, NULL); > } > > static void piix4_pm_realize(PCIDevice *dev, Error **errp) > diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c > index 17c292e306..f5526f9c3b 100644 > --- a/hw/isa/lpc_ich9.c > +++ b/hw/isa/lpc_ich9.c > @@ -645,9 +645,9 @@ static void ich9_lpc_add_properties(ICH9LPCState *lpc= ) > ich9_lpc_get_sci_int, > NULL, NULL, NULL, NULL); > object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_ENABLE_= CMD, > - &acpi_enable_cmd, NULL); > + &acpi_enable_cmd, OBJ_PROP_FLAG_RD, NU= LL); > object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE= _CMD, > - &acpi_disable_cmd, NULL); > + &acpi_disable_cmd, OBJ_PROP_FLAG_RD, N= ULL); > > ich9_pm_add_properties(OBJECT(lpc), &lpc->pm, NULL); > } > diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c > index 62f1a42592..ace2db0413 100644 > --- a/hw/ppc/spapr_drc.c > +++ b/hw/ppc/spapr_drc.c > @@ -553,7 +553,7 @@ static void spapr_dr_connector_instance_init(Object *= obj) > SpaprDrc *drc =3D SPAPR_DR_CONNECTOR(obj); > SpaprDrcClass *drck =3D SPAPR_DR_CONNECTOR_GET_CLASS(drc); > > - object_property_add_uint32_ptr(obj, "id", &drc->id, NULL); > + object_property_add_uint32_ptr(obj, "id", &drc->id, OBJ_PROP_FLAG_RD= , NULL); > object_property_add(obj, "index", "uint32", prop_get_index, > NULL, NULL, NULL, NULL); > object_property_add(obj, "fdt", "struct", prop_get_fdt, > diff --git a/include/qom/object.h b/include/qom/object.h > index 128d00c77f..4836c54e93 100644 > --- a/include/qom/object.h > +++ b/include/qom/object.h > @@ -1579,65 +1579,91 @@ void object_class_property_add_tm(ObjectClass *kl= ass, const char *name, > void (*get)(Object *, struct tm *, Err= or **), > Error **errp); > > +typedef enum { > + /* Automatically add a getter to the property */ > + OBJ_PROP_FLAG_RD =3D (1UL << 0), > + /* Automatically add a setter to the property */ > + OBJ_PROP_FLAG_WR =3D (1UL << 1), > +} ObjectPropertyFlags; > + > /** > * object_property_add_uint8_ptr: > * @obj: the object to add a property to > * @name: the name of the property > * @v: pointer to value > + * @flags: bitwise-or'd ObjectPropertyFlags > * @errp: if an error occurs, a pointer to an area to store the error > * > * Add an integer property in memory. This function will add a > * property of type 'uint8'. > */ > void object_property_add_uint8_ptr(Object *obj, const char *name, > - const uint8_t *v, Error **errp); > + const uint8_t *v, ObjectPropertyFlags= flags, > + Error **errp); > void object_class_property_add_uint8_ptr(ObjectClass *klass, const char = *name, > - const uint8_t *v, Error **errp)= ; > + const uint8_t *v, > + ObjectPropertyFlags flags, > + Error **errp); > > /** > * object_property_add_uint16_ptr: > * @obj: the object to add a property to > * @name: the name of the property > * @v: pointer to value > + * @flags: bitwise-or'd ObjectPropertyFlags > * @errp: if an error occurs, a pointer to an area to store the error > * > * Add an integer property in memory. This function will add a > * property of type 'uint16'. > */ > void object_property_add_uint16_ptr(Object *obj, const char *name, > - const uint16_t *v, Error **errp); > + const uint16_t *v, > + ObjectPropertyFlags flags, > + Error **errp); > void object_class_property_add_uint16_ptr(ObjectClass *klass, const char= *name, > - const uint16_t *v, Error **err= p); > + const uint16_t *v, > + ObjectPropertyFlags flags, > + Error **errp); > > /** > * object_property_add_uint32_ptr: > * @obj: the object to add a property to > * @name: the name of the property > * @v: pointer to value > + * @flags: bitwise-or'd ObjectPropertyFlags > * @errp: if an error occurs, a pointer to an area to store the error > * > * Add an integer property in memory. This function will add a > * property of type 'uint32'. > */ > void object_property_add_uint32_ptr(Object *obj, const char *name, > - const uint32_t *v, Error **errp); > + const uint32_t *v, > + ObjectPropertyFlags flags, > + Error **errp); > void object_class_property_add_uint32_ptr(ObjectClass *klass, const char= *name, > - const uint32_t *v, Error **err= p); > + const uint32_t *v, > + ObjectPropertyFlags flags, > + Error **errp); > > /** > * object_property_add_uint64_ptr: > * @obj: the object to add a property to > * @name: the name of the property > * @v: pointer to value > + * @flags: bitwise-or'd ObjectPropertyFlags > * @errp: if an error occurs, a pointer to an area to store the error > * > * Add an integer property in memory. This function will add a > * property of type 'uint64'. > */ > void object_property_add_uint64_ptr(Object *obj, const char *name, > - const uint64_t *v, Error **Errp); > + const uint64_t *v, > + ObjectPropertyFlags flags, > + Error **Errp); > void object_class_property_add_uint64_ptr(ObjectClass *klass, const char= *name, > - const uint64_t *v, Error **Err= p); > + const uint64_t *v, > + ObjectPropertyFlags flags, > + Error **Errp); > > /** > * object_property_add_alias: > diff --git a/qom/object.c b/qom/object.c > index d51b57fba1..6f300b5317 100644 > --- a/qom/object.c > +++ b/qom/object.c > @@ -2326,6 +2326,22 @@ static void property_get_uint8_ptr(Object *obj, Vi= sitor *v, const char *name, > visit_type_uint8(v, name, &value, errp); > } > > +static void property_set_uint8_ptr(Object *obj, Visitor *v, const char *= name, > + void *opaque, Error **errp) > +{ > + uint8_t *field =3D opaque; > + uint8_t value; > + Error *local_err =3D NULL; > + > + visit_type_uint8(v, name, &value, &local_err); > + if (local_err) { > + error_propagate(errp, local_err); > + return; > + } > + > + *field =3D value; > +} > + > static void property_get_uint16_ptr(Object *obj, Visitor *v, const char = *name, > void *opaque, Error **errp) > { > @@ -2333,6 +2349,22 @@ static void property_get_uint16_ptr(Object *obj, V= isitor *v, const char *name, > visit_type_uint16(v, name, &value, errp); > } > > +static void property_set_uint16_ptr(Object *obj, Visitor *v, const char = *name, > + void *opaque, Error **errp) > +{ > + uint16_t *field =3D opaque; > + uint16_t value; > + Error *local_err =3D NULL; > + > + visit_type_uint16(v, name, &value, &local_err); > + if (local_err) { > + error_propagate(errp, local_err); > + return; > + } > + > + *field =3D value; > +} > + > static void property_get_uint32_ptr(Object *obj, Visitor *v, const char = *name, > void *opaque, Error **errp) > { > @@ -2340,6 +2372,22 @@ static void property_get_uint32_ptr(Object *obj, V= isitor *v, const char *name, > visit_type_uint32(v, name, &value, errp); > } > > +static void property_set_uint32_ptr(Object *obj, Visitor *v, const char = *name, > + void *opaque, Error **errp) > +{ > + uint32_t *field =3D opaque; > + uint32_t value; > + Error *local_err =3D NULL; > + > + visit_type_uint32(v, name, &value, &local_err); > + if (local_err) { > + error_propagate(errp, local_err); > + return; > + } > + > + *field =3D value; > +} > + > static void property_get_uint64_ptr(Object *obj, Visitor *v, const char = *name, > void *opaque, Error **errp) > { > @@ -2347,60 +2395,180 @@ static void property_get_uint64_ptr(Object *obj,= Visitor *v, const char *name, > visit_type_uint64(v, name, &value, errp); > } > > +static void property_set_uint64_ptr(Object *obj, Visitor *v, const char = *name, > + void *opaque, Error **errp) > +{ > + uint64_t *field =3D opaque; > + uint64_t value; > + Error *local_err =3D NULL; > + > + visit_type_uint64(v, name, &value, &local_err); > + if (local_err) { > + error_propagate(errp, local_err); > + return; > + } > + > + *field =3D value; > +} > + > void object_property_add_uint8_ptr(Object *obj, const char *name, > - const uint8_t *v, Error **errp) > + const uint8_t *v, > + ObjectPropertyFlags flags, > + Error **errp) > { > - object_property_add(obj, name, "uint8", property_get_uint8_ptr, > - NULL, NULL, (void *)v, errp); > + ObjectPropertyAccessor *getter =3D NULL; > + ObjectPropertyAccessor *setter =3D NULL; > + > + if ((flags & OBJ_PROP_FLAG_RD) =3D=3D OBJ_PROP_FLAG_RD) { > + getter =3D property_get_uint8_ptr; > + } > + > + if ((flags & OBJ_PROP_FLAG_WR) =3D=3D OBJ_PROP_FLAG_WR) { > + setter =3D property_set_uint8_ptr; > + } > + > + object_property_add(obj, name, "uint8", > + getter, setter, NULL, (void *)v, errp); > } > > void object_class_property_add_uint8_ptr(ObjectClass *klass, const char = *name, > - const uint8_t *v, Error **errp) > + const uint8_t *v, > + ObjectPropertyFlags flags, > + Error **errp) > { > - object_class_property_add(klass, name, "uint8", property_get_uint8_p= tr, > - NULL, NULL, (void *)v, errp); > + ObjectPropertyAccessor *getter =3D NULL; > + ObjectPropertyAccessor *setter =3D NULL; > + > + if ((flags & OBJ_PROP_FLAG_RD) =3D=3D OBJ_PROP_FLAG_RD) { > + getter =3D property_get_uint8_ptr; > + } > + > + if ((flags & OBJ_PROP_FLAG_WR) =3D=3D OBJ_PROP_FLAG_WR) { > + setter =3D property_set_uint8_ptr; > + } > + > + object_class_property_add(klass, name, "uint8", > + getter, setter, NULL, (void *)v, errp); > } > > void object_property_add_uint16_ptr(Object *obj, const char *name, > - const uint16_t *v, Error **errp) > + const uint16_t *v, > + ObjectPropertyFlags flags, > + Error **errp) > { > - object_property_add(obj, name, "uint16", property_get_uint16_ptr, > - NULL, NULL, (void *)v, errp); > + ObjectPropertyAccessor *getter =3D NULL; > + ObjectPropertyAccessor *setter =3D NULL; > + > + if ((flags & OBJ_PROP_FLAG_RD) =3D=3D OBJ_PROP_FLAG_RD) { > + getter =3D property_get_uint16_ptr; > + } > + > + if ((flags & OBJ_PROP_FLAG_WR) =3D=3D OBJ_PROP_FLAG_WR) { > + setter =3D property_set_uint16_ptr; > + } > + > + object_property_add(obj, name, "uint16", > + getter, setter, NULL, (void *)v, errp); > } > > void object_class_property_add_uint16_ptr(ObjectClass *klass, const char= *name, > - const uint16_t *v, Error **err= p) > + const uint16_t *v, > + ObjectPropertyFlags flags, > + Error **errp) > { > - object_class_property_add(klass, name, "uint16", property_get_uint16= _ptr, > - NULL, NULL, (void *)v, errp); > + ObjectPropertyAccessor *getter =3D NULL; > + ObjectPropertyAccessor *setter =3D NULL; > + > + if ((flags & OBJ_PROP_FLAG_RD) =3D=3D OBJ_PROP_FLAG_RD) { > + getter =3D property_get_uint16_ptr; > + } > + > + if ((flags & OBJ_PROP_FLAG_WR) =3D=3D OBJ_PROP_FLAG_WR) { > + setter =3D property_set_uint16_ptr; > + } > + > + object_class_property_add(klass, name, "uint16", > + getter, setter, NULL, (void *)v, errp); > } > > void object_property_add_uint32_ptr(Object *obj, const char *name, > - const uint32_t *v, Error **errp) > + const uint32_t *v, > + ObjectPropertyFlags flags, > + Error **errp) > { > - object_property_add(obj, name, "uint32", property_get_uint32_ptr, > - NULL, NULL, (void *)v, errp); > + ObjectPropertyAccessor *getter =3D NULL; > + ObjectPropertyAccessor *setter =3D NULL; > + > + if ((flags & OBJ_PROP_FLAG_RD) =3D=3D OBJ_PROP_FLAG_RD) { > + getter =3D property_get_uint32_ptr; > + } > + > + if ((flags & OBJ_PROP_FLAG_WR) =3D=3D OBJ_PROP_FLAG_WR) { > + setter =3D property_set_uint32_ptr; > + } > + > + object_property_add(obj, name, "uint32", > + getter, setter, NULL, (void *)v, errp); > } > > void object_class_property_add_uint32_ptr(ObjectClass *klass, const char= *name, > - const uint32_t *v, Error **err= p) > + const uint32_t *v, > + ObjectPropertyFlags flags, > + Error **errp) > { > - object_class_property_add(klass, name, "uint32", property_get_uint32= _ptr, > - NULL, NULL, (void *)v, errp); > + ObjectPropertyAccessor *getter =3D NULL; > + ObjectPropertyAccessor *setter =3D NULL; > + > + if ((flags & OBJ_PROP_FLAG_RD) =3D=3D OBJ_PROP_FLAG_RD) { > + getter =3D property_get_uint32_ptr; > + } > + > + if ((flags & OBJ_PROP_FLAG_WR) =3D=3D OBJ_PROP_FLAG_WR) { > + setter =3D property_set_uint32_ptr; > + } > + > + object_class_property_add(klass, name, "uint32", > + getter, setter, NULL, (void *)v, errp); > } > > void object_property_add_uint64_ptr(Object *obj, const char *name, > - const uint64_t *v, Error **errp) > + const uint64_t *v, > + ObjectPropertyFlags flags, > + Error **errp) > { > - object_property_add(obj, name, "uint64", property_get_uint64_ptr, > - NULL, NULL, (void *)v, errp); > + ObjectPropertyAccessor *getter =3D NULL; > + ObjectPropertyAccessor *setter =3D NULL; > + > + if ((flags & OBJ_PROP_FLAG_RD) =3D=3D OBJ_PROP_FLAG_RD) { > + getter =3D property_get_uint64_ptr; > + } > + > + if ((flags & OBJ_PROP_FLAG_WR) =3D=3D OBJ_PROP_FLAG_WR) { > + setter =3D property_set_uint64_ptr; > + } > + > + object_property_add(obj, name, "uint64", > + getter, setter, NULL, (void *)v, errp); > } > > void object_class_property_add_uint64_ptr(ObjectClass *klass, const char= *name, > - const uint64_t *v, Error **err= p) > + const uint64_t *v, > + ObjectPropertyFlags flags, > + Error **errp) > { > - object_class_property_add(klass, name, "uint64", property_get_uint64= _ptr, > - NULL, NULL, (void *)v, errp); > + ObjectPropertyAccessor *getter =3D NULL; > + ObjectPropertyAccessor *setter =3D NULL; > + > + if ((flags & OBJ_PROP_FLAG_RD) =3D=3D OBJ_PROP_FLAG_RD) { > + getter =3D property_get_uint64_ptr; > + } > + > + if ((flags & OBJ_PROP_FLAG_WR) =3D=3D OBJ_PROP_FLAG_WR) { > + setter =3D property_set_uint64_ptr; > + } > + > + object_class_property_add(klass, name, "uint64", > + getter, setter, NULL, (void *)v, errp); > } > > typedef struct { > diff --git a/ui/console.c b/ui/console.c > index 82d1ddac9c..7d6ef90978 100644 > --- a/ui/console.c > +++ b/ui/console.c > @@ -1296,8 +1296,8 @@ static QemuConsole *new_console(DisplayState *ds, c= onsole_type_t console_type, > object_property_allow_set_link, > OBJ_PROP_LINK_STRONG, > &error_abort); > - object_property_add_uint32_ptr(obj, "head", > - &s->head, &error_abort); > + object_property_add_uint32_ptr(obj, "head", &s->head, > + OBJ_PROP_FLAG_RD, &error_abort); > > if (!active_console || ((active_console->console_type !=3D GRAPHIC_C= ONSOLE) && > (console_type =3D=3D GRAPHIC_CONSOLE))) { > -- > 2.20.1 > looks good otherwise --=20 Marc-Andr=C3=A9 Lureau