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qom/object: enable setter for uint types

Browse source 
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_READ. This maintains the current
behaviour whilst allowing others to also set OBJ_PROP_FLAG_WRITE (or use
the more convenient OBJ_PROP_FLAG_READWRITE) in the future (which will
automatically install a setter). Other flags may be added later.

Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Felipe Franciosi 2020-02-04 13:15:58 +00:00 committed by Paolo Bonzini
parent 25aa6b3718
commit 836e1b3813
8 changed files with 247 additions and 49 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
hw/acpi/ich9.c
View file

@ -454,12 +454,12 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp)
pm->s4_val = 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_READ, errp);
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_READ, errp);
object_property_add_bool(obj, "memory-hotplug-support",
ich9_pm_get_memory_hotplug_support,
ich9_pm_set_memory_hotplug_support,

7
hw/acpi/pcihp.c
View file

@ -80,7 +80,8 @@ static void *acpi_set_bsel(PCIBus *bus, void *opaque)
*bus_bsel = (*bsel_alloc)++;
object_property_add_uint32_ptr(OBJECT(bus), ACPI_PCIHP_PROP_BSEL,
bus_bsel, &error_abort);
bus_bsel, OBJ_PROP_FLAG_READ,
&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->io_base,
&error_abort);
OBJ_PROP_FLAG_READ, &error_abort);
object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_LEN_PROP, &s->io_len,
&error_abort);
OBJ_PROP_FLAG_READ, &error_abort);
}
const VMStateDescription vmstate_acpi_pcihp_pci_status = {

12
hw/acpi/piix4.c
View file

@ -444,17 +444,17 @@ static void piix4_pm_add_propeties(PIIX4PMState *s)
static const uint16_t sci_int = 9;
object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
&acpi_enable_cmd, NULL);
&acpi_enable_cmd, OBJ_PROP_FLAG_READ, NULL);
object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
&acpi_disable_cmd, NULL);
&acpi_disable_cmd, OBJ_PROP_FLAG_READ, NULL);
object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
&gpe0_blk, NULL);
&gpe0_blk, OBJ_PROP_FLAG_READ, NULL);
object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
&gpe0_blk_len, NULL);
&gpe0_blk_len, OBJ_PROP_FLAG_READ, NULL);
object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
&sci_int, NULL);
&sci_int, OBJ_PROP_FLAG_READ, NULL);
object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
&s->io_base, NULL);
&s->io_base, OBJ_PROP_FLAG_READ, NULL);
}
static void piix4_pm_realize(PCIDevice *dev, Error **errp)

4
hw/isa/lpc_ich9.c
View file

@ -643,9 +643,9 @@ 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_READ, NULL);
object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE_CMD,
&acpi_disable_cmd, NULL);
&acpi_disable_cmd, OBJ_PROP_FLAG_READ, NULL);
ich9_pm_add_properties(OBJECT(lpc), &lpc->pm, NULL);
}

3
hw/ppc/spapr_drc.c
View file

@ -583,7 +583,8 @@ static void spapr_dr_connector_instance_init(Object *obj)
SpaprDrc *drc = SPAPR_DR_CONNECTOR(obj);
SpaprDrcClass *drck = 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_READ,
NULL);
object_property_add(obj, "index", "uint32", prop_get_index,
NULL, NULL, NULL, NULL);
object_property_add(obj, "fdt", "struct", prop_get_fdt,

48
include/qom/object.h
View file

@ -1664,69 +1664,101 @@ ObjectProperty *object_class_property_add_tm(ObjectClass *klass,
void (*get)(Object *, struct tm *, Error **),
Error **errp);
typedef enum {
/* Automatically add a getter to the property */
OBJ_PROP_FLAG_READ = 1 << 0,
/* Automatically add a setter to the property */
OBJ_PROP_FLAG_WRITE = 1 << 1,
/* Automatically add a getter and a setter to the property */
OBJ_PROP_FLAG_READWRITE = (OBJ_PROP_FLAG_READ | OBJ_PROP_FLAG_WRITE),
} 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);
ObjectProperty *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);
ObjectProperty *object_class_property_add_uint16_ptr(ObjectClass *klass,
const char *name,
const uint16_t *v, Error **errp);
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);
ObjectProperty *object_class_property_add_uint32_ptr(ObjectClass *klass,
const char *name,
const uint32_t *v, Error **errp);
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);
ObjectProperty *object_class_property_add_uint64_ptr(ObjectClass *klass,
const char *name,
const uint64_t *v, Error **errp);
const uint64_t *v,
ObjectPropertyFlags flags,
Error **Errp);
/**
* object_property_add_alias:

214
qom/object.c
View file

@ -2498,6 +2498,22 @@ static void property_get_uint8_ptr(Object *obj, Visitor *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 = opaque;
uint8_t value;
Error *local_err = NULL;
visit_type_uint8(v, name, &value, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
*field = value;
}
static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@ -2505,6 +2521,22 @@ static void property_get_uint16_ptr(Object *obj, Visitor *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 = opaque;
uint16_t value;
Error *local_err = NULL;
visit_type_uint16(v, name, &value, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
*field = value;
}
static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@ -2512,6 +2544,22 @@ static void property_get_uint32_ptr(Object *obj, Visitor *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 = opaque;
uint32_t value;
Error *local_err = NULL;
visit_type_uint32(v, name, &value, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
*field = value;
}
static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@ -2519,68 +2567,184 @@ static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
visit_type_uint64(v, name, &value, errp);
}
void object_property_add_uint8_ptr(Object *obj, const char *name,
const uint8_t *v, Error **errp)
static void property_set_uint64_ptr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
object_property_add(obj, name, "uint8", property_get_uint8_ptr,
NULL, NULL, (void *)v, errp);
uint64_t *field = opaque;
uint64_t value;
Error *local_err = NULL;
visit_type_uint64(v, name, &value, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
*field = value;
}
void object_property_add_uint8_ptr(Object *obj, const char *name,
const uint8_t *v,
ObjectPropertyFlags flags,
Error **errp)
{
ObjectPropertyAccessor *getter = NULL;
ObjectPropertyAccessor *setter = NULL;
if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
getter = property_get_uint8_ptr;
}
if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
setter = property_set_uint8_ptr;
}
object_property_add(obj, name, "uint8",
getter, setter, NULL, (void *)v, errp);
}
ObjectProperty *
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)
{
ObjectPropertyAccessor *getter = NULL;
ObjectPropertyAccessor *setter = NULL;
if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
getter = property_get_uint8_ptr;
}
if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
setter = property_set_uint8_ptr;
}
return object_class_property_add(klass, name, "uint8",
property_get_uint8_ptr,
NULL, NULL, (void *)v, errp);
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 = NULL;
ObjectPropertyAccessor *setter = NULL;
if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
getter = property_get_uint16_ptr;
}
if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
setter = property_set_uint16_ptr;
}
object_property_add(obj, name, "uint16",
getter, setter, NULL, (void *)v, errp);
}
ObjectProperty *
object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
const uint16_t *v, Error **errp)
const uint16_t *v,
ObjectPropertyFlags flags,
Error **errp)
{
ObjectPropertyAccessor *getter = NULL;
ObjectPropertyAccessor *setter = NULL;
if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
getter = property_get_uint16_ptr;
}
if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
setter = property_set_uint16_ptr;
}
return object_class_property_add(klass, name, "uint16",
property_get_uint16_ptr,
NULL, NULL, (void *)v, errp);
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 = NULL;
ObjectPropertyAccessor *setter = NULL;
if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
getter = property_get_uint32_ptr;
}
if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
setter = property_set_uint32_ptr;
}
object_property_add(obj, name, "uint32",
getter, setter, NULL, (void *)v, errp);
}
ObjectProperty *
object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
const uint32_t *v, Error **errp)
const uint32_t *v,
ObjectPropertyFlags flags,
Error **errp)
{
ObjectPropertyAccessor *getter = NULL;
ObjectPropertyAccessor *setter = NULL;
if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
getter = property_get_uint32_ptr;
}
if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
setter = property_set_uint32_ptr;
}
return object_class_property_add(klass, name, "uint32",
property_get_uint32_ptr,
NULL, NULL, (void *)v, errp);
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 = NULL;
ObjectPropertyAccessor *setter = NULL;
if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
getter = property_get_uint64_ptr;
}
if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
setter = property_set_uint64_ptr;
}
object_property_add(obj, name, "uint64",
getter, setter, NULL, (void *)v, errp);
}
ObjectProperty *
object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
const uint64_t *v, Error **errp)
const uint64_t *v,
ObjectPropertyFlags flags,
Error **errp)
{
ObjectPropertyAccessor *getter = NULL;
ObjectPropertyAccessor *setter = NULL;
if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
getter = property_get_uint64_ptr;
}
if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
setter = property_set_uint64_ptr;
}
return object_class_property_add(klass, name, "uint64",
property_get_uint64_ptr,
NULL, NULL, (void *)v, errp);
getter, setter, NULL, (void *)v, errp);
}
typedef struct {

4
ui/console.c
View file

@ -1299,8 +1299,8 @@ static QemuConsole *new_console(DisplayState *ds, console_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_READ, &error_abort);
if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
(console_type == GRAPHIC_CONSOLE))) {