* [PATCH 0/4] Improve default object property_add uint helpers
@ 2020-02-03 15:54 Felipe Franciosi
2020-02-03 15:54 ` [PATCH 1/4] qom/object: enable setter for uint types Felipe Franciosi
` (4 more replies)
0 siblings, 5 replies; 13+ messages in thread
From: Felipe Franciosi @ 2020-02-03 15:54 UTC (permalink / raw)
To: Marc-Andre Lureau, Phillipe Mathieu-Daude, Stefan Hajnoczi,
Eduardo Habkost, Markus Armbruster, Alexey Kardashevskiy
Cc: qemu-devel, Felipe Franciosi
This improves the family of object_property_add_uintXX_ptr helpers by enabling
a default getter/setter only when desired. To prevent an API behavioural change
(from clients that already used these helpers and did not want a setter), we
add a OBJ_PROP_FLAG_READ flag that allow clients to only have a getter. Patch 1
enhances the API and modify current users.
While modifying the clients of the API, a couple of improvement opportunities
were observed in ich9. These were added in separate patches (2 and 3).
Patch 4 cleans up a lot of existing code by moving various objects to the
enhanced API. Previously, those objects had their own getters/setters that only
updated the values without further checks. Some of them actually lacked a check
for setting overflows, which could have resulted in undesired values being set.
The new default setters include a check for that, not updating the values in
case of errors (and propagating them). If they did not provide an error
pointer, then that behaviour was maintained.
Felipe Franciosi (4):
qom/object: enable setter for uint types
ich9: fix getter type for sci_int property
ich9: Simplify ich9_lpc_initfn
qom/object: Use common get/set uint helpers
hw/acpi/ich9.c | 99 ++------------------
hw/acpi/pcihp.c | 7 +-
hw/acpi/piix4.c | 12 +--
hw/isa/lpc_ich9.c | 27 ++----
hw/misc/edu.c | 13 +--
hw/pci-host/q35.c | 14 +--
hw/ppc/spapr.c | 18 +---
hw/ppc/spapr_drc.c | 3 +-
include/qom/object.h | 48 ++++++++--
memory.c | 15 +--
qom/object.c | 214 ++++++++++++++++++++++++++++++++++++++-----
target/arm/cpu.c | 22 +----
target/i386/sev.c | 106 ++-------------------
ui/console.c | 4 +-
14 files changed, 283 insertions(+), 319 deletions(-)
--
2.20.1
Changelog:
v1->v2:
- Update sci_int directly instead of using stack variable
- Defining an enhanced ObjectPropertyFlags instead of just 'readonly'
- Erroring out directly (instead of using gotos) on default setters
- Retaining lack of errp passing when it wasn't there
v2->v3:
- Rename flags _RD to _READ and _WR to _WRITE
- Add a convenience _READWRITE flag
- Drop the usage of UL in the bit flag definitions
v3->v4:
- Drop changes to hw/vfio/pci-quirks.c
v4->v5:
- Rebase on latest master
- Available here: https://github.com/franciozzy/qemu/tree/autosetters
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 1/4] qom/object: enable setter for uint types
2020-02-03 15:54 [PATCH 0/4] Improve default object property_add uint helpers Felipe Franciosi
@ 2020-02-03 15:54 ` Felipe Franciosi
2020-02-03 15:54 ` [PATCH 2/4] ich9: fix getter type for sci_int property Felipe Franciosi
` (3 subsequent siblings)
4 siblings, 0 replies; 13+ messages in thread
From: Felipe Franciosi @ 2020-02-03 15:54 UTC (permalink / raw)
To: Marc-Andre Lureau, Phillipe Mathieu-Daude, Stefan Hajnoczi,
Eduardo Habkost, Markus Armbruster, Alexey Kardashevskiy
Cc: qemu-devel, Felipe Franciosi
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>
---
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 | 3 +-
include/qom/object.h | 48 ++++++++--
qom/object.c | 214 ++++++++++++++++++++++++++++++++++++++-----
ui/console.c | 4 +-
8 files changed, 247 insertions(+), 49 deletions(-)
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 2034dd749e..742fb78226 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -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,
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 8413348a33..4dcef372bf 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 = (*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 = {
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 6d621c31e7..c37749cb96 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 = 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)
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index f85b484eac..0b6cf6f0dd 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -644,9 +644,9 @@ 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);
}
diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c
index 17aeac3801..4d7f9fd765 100644
--- a/hw/ppc/spapr_drc.c
+++ b/hw/ppc/spapr_drc.c
@@ -553,7 +553,8 @@ 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,
diff --git a/include/qom/object.h b/include/qom/object.h
index 29546496c1..784c97c0e1 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -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:
diff --git a/qom/object.c b/qom/object.c
index 555c8b9d07..8492811220 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -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);
}
+static void property_set_uint64_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **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, 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 = 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)
{
- return object_class_property_add(klass, 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_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 = 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 {
diff --git a/ui/console.c b/ui/console.c
index 179901c35e..184e173687 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -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))) {
--
2.20.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 2/4] ich9: fix getter type for sci_int property
2020-02-03 15:54 [PATCH 0/4] Improve default object property_add uint helpers Felipe Franciosi
2020-02-03 15:54 ` [PATCH 1/4] qom/object: enable setter for uint types Felipe Franciosi
@ 2020-02-03 15:54 ` Felipe Franciosi
2020-02-03 15:54 ` [PATCH 3/4] ich9: Simplify ich9_lpc_initfn Felipe Franciosi
` (2 subsequent siblings)
4 siblings, 0 replies; 13+ messages in thread
From: Felipe Franciosi @ 2020-02-03 15:54 UTC (permalink / raw)
To: Marc-Andre Lureau, Phillipe Mathieu-Daude, Stefan Hajnoczi,
Eduardo Habkost, Markus Armbruster, Alexey Kardashevskiy
Cc: qemu-devel, Felipe Franciosi
When QOM APIs were added to ich9 in 6f1426ab, the getter for sci_int was
written using uint32_t. However, the object property is uint8_t. This
fixes the getter for correctness.
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
---
hw/isa/lpc_ich9.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index 0b6cf6f0dd..71de9cf1ad 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -630,9 +630,7 @@ static void ich9_lpc_get_sci_int(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
ICH9LPCState *lpc = ICH9_LPC_DEVICE(obj);
- uint32_t value = lpc->sci_gsi;
-
- visit_type_uint32(v, name, &value, errp);
+ visit_type_uint8(v, name, &lpc->sci_gsi, errp);
}
static void ich9_lpc_add_properties(ICH9LPCState *lpc)
@@ -640,7 +638,7 @@ static void ich9_lpc_add_properties(ICH9LPCState *lpc)
static const uint8_t acpi_enable_cmd = ICH9_APM_ACPI_ENABLE;
static const uint8_t acpi_disable_cmd = ICH9_APM_ACPI_DISABLE;
- object_property_add(OBJECT(lpc), ACPI_PM_PROP_SCI_INT, "uint32",
+ object_property_add(OBJECT(lpc), ACPI_PM_PROP_SCI_INT, "uint8",
ich9_lpc_get_sci_int,
NULL, NULL, NULL, NULL);
object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_ENABLE_CMD,
--
2.20.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 3/4] ich9: Simplify ich9_lpc_initfn
2020-02-03 15:54 [PATCH 0/4] Improve default object property_add uint helpers Felipe Franciosi
2020-02-03 15:54 ` [PATCH 1/4] qom/object: enable setter for uint types Felipe Franciosi
2020-02-03 15:54 ` [PATCH 2/4] ich9: fix getter type for sci_int property Felipe Franciosi
@ 2020-02-03 15:54 ` Felipe Franciosi
2020-02-03 15:54 ` [PATCH 4/4] qom/object: Use common get/set uint helpers Felipe Franciosi
2020-02-03 16:08 ` [PATCH 0/4] Improve default object property_add " Felipe Franciosi
4 siblings, 0 replies; 13+ messages in thread
From: Felipe Franciosi @ 2020-02-03 15:54 UTC (permalink / raw)
To: Marc-Andre Lureau, Phillipe Mathieu-Daude, Stefan Hajnoczi,
Eduardo Habkost, Markus Armbruster, Alexey Kardashevskiy
Cc: qemu-devel, Felipe Franciosi
Currently, ich9_lpc_initfn simply serves as a caller to
ich9_lpc_add_properties. This simplifies the code a bit by eliminating
ich9_lpc_add_properties altogether and executing its logic in the parent
object initialiser function.
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
---
hw/isa/lpc_ich9.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index 71de9cf1ad..12d99057f4 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -633,12 +633,14 @@ static void ich9_lpc_get_sci_int(Object *obj, Visitor *v, const char *name,
visit_type_uint8(v, name, &lpc->sci_gsi, errp);
}
-static void ich9_lpc_add_properties(ICH9LPCState *lpc)
+static void ich9_lpc_initfn(Object *obj)
{
+ ICH9LPCState *lpc = ICH9_LPC_DEVICE(obj);
+
static const uint8_t acpi_enable_cmd = ICH9_APM_ACPI_ENABLE;
static const uint8_t acpi_disable_cmd = ICH9_APM_ACPI_DISABLE;
- object_property_add(OBJECT(lpc), ACPI_PM_PROP_SCI_INT, "uint8",
+ object_property_add(obj, ACPI_PM_PROP_SCI_INT, "uint8",
ich9_lpc_get_sci_int,
NULL, NULL, NULL, NULL);
object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_ENABLE_CMD,
@@ -646,14 +648,7 @@ static void ich9_lpc_add_properties(ICH9LPCState *lpc)
object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE_CMD,
&acpi_disable_cmd, OBJ_PROP_FLAG_READ, NULL);
- ich9_pm_add_properties(OBJECT(lpc), &lpc->pm, NULL);
-}
-
-static void ich9_lpc_initfn(Object *obj)
-{
- ICH9LPCState *lpc = ICH9_LPC_DEVICE(obj);
-
- ich9_lpc_add_properties(lpc);
+ ich9_pm_add_properties(obj, &lpc->pm, NULL);
}
static void ich9_lpc_realize(PCIDevice *d, Error **errp)
--
2.20.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 4/4] qom/object: Use common get/set uint helpers
2020-02-03 15:54 [PATCH 0/4] Improve default object property_add uint helpers Felipe Franciosi
` (2 preceding siblings ...)
2020-02-03 15:54 ` [PATCH 3/4] ich9: Simplify ich9_lpc_initfn Felipe Franciosi
@ 2020-02-03 15:54 ` Felipe Franciosi
2020-02-03 16:08 ` [PATCH 0/4] Improve default object property_add " Felipe Franciosi
4 siblings, 0 replies; 13+ messages in thread
From: Felipe Franciosi @ 2020-02-03 15:54 UTC (permalink / raw)
To: Marc-Andre Lureau, Phillipe Mathieu-Daude, Stefan Hajnoczi,
Eduardo Habkost, Markus Armbruster, Alexey Kardashevskiy
Cc: qemu-devel, Felipe Franciosi
Several objects implemented their own uint property getters and setters,
despite them being straightforward (without any checks/validations on
the values themselves) and identical across objects. This makes use of
an enhanced API for object_property_add_uintXX_ptr() which offers
default setters.
Some of these setters used to update the value even if the type visit
failed (eg. because the value being set overflowed over the given type).
The new setter introduces a check for these errors, not updating the
value if an error occurred. The error is propagated.
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
---
hw/acpi/ich9.c | 95 ++++-------------------------------------
hw/isa/lpc_ich9.c | 12 +-----
hw/misc/edu.c | 13 ++----
hw/pci-host/q35.c | 14 ++----
hw/ppc/spapr.c | 18 ++------
memory.c | 15 +------
target/arm/cpu.c | 22 ++--------
target/i386/sev.c | 106 ++++------------------------------------------
8 files changed, 34 insertions(+), 261 deletions(-)
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 742fb78226..d9305be891 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -357,81 +357,6 @@ static void ich9_pm_set_cpu_hotplug_legacy(Object *obj, bool value,
s->pm.cpu_hotplug_legacy = value;
}
-static void ich9_pm_get_disable_s3(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ICH9LPCPMRegs *pm = opaque;
- uint8_t value = pm->disable_s3;
-
- visit_type_uint8(v, name, &value, errp);
-}
-
-static void ich9_pm_set_disable_s3(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ICH9LPCPMRegs *pm = opaque;
- Error *local_err = NULL;
- uint8_t value;
-
- visit_type_uint8(v, name, &value, &local_err);
- if (local_err) {
- goto out;
- }
- pm->disable_s3 = value;
-out:
- error_propagate(errp, local_err);
-}
-
-static void ich9_pm_get_disable_s4(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ICH9LPCPMRegs *pm = opaque;
- uint8_t value = pm->disable_s4;
-
- visit_type_uint8(v, name, &value, errp);
-}
-
-static void ich9_pm_set_disable_s4(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ICH9LPCPMRegs *pm = opaque;
- Error *local_err = NULL;
- uint8_t value;
-
- visit_type_uint8(v, name, &value, &local_err);
- if (local_err) {
- goto out;
- }
- pm->disable_s4 = value;
-out:
- error_propagate(errp, local_err);
-}
-
-static void ich9_pm_get_s4_val(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ICH9LPCPMRegs *pm = opaque;
- uint8_t value = pm->s4_val;
-
- visit_type_uint8(v, name, &value, errp);
-}
-
-static void ich9_pm_set_s4_val(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ICH9LPCPMRegs *pm = opaque;
- Error *local_err = NULL;
- uint8_t value;
-
- visit_type_uint8(v, name, &value, &local_err);
- if (local_err) {
- goto out;
- }
- pm->s4_val = value;
-out:
- error_propagate(errp, local_err);
-}
-
static bool ich9_pm_get_enable_tco(Object *obj, Error **errp)
{
ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
@@ -468,18 +393,14 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp)
ich9_pm_get_cpu_hotplug_legacy,
ich9_pm_set_cpu_hotplug_legacy,
NULL);
- object_property_add(obj, ACPI_PM_PROP_S3_DISABLED, "uint8",
- ich9_pm_get_disable_s3,
- ich9_pm_set_disable_s3,
- NULL, pm, NULL);
- object_property_add(obj, ACPI_PM_PROP_S4_DISABLED, "uint8",
- ich9_pm_get_disable_s4,
- ich9_pm_set_disable_s4,
- NULL, pm, NULL);
- object_property_add(obj, ACPI_PM_PROP_S4_VAL, "uint8",
- ich9_pm_get_s4_val,
- ich9_pm_set_s4_val,
- NULL, pm, NULL);
+ object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S3_DISABLED,
+ &pm->disable_s3, OBJ_PROP_FLAG_READWRITE,
+ NULL);
+ object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S4_DISABLED,
+ &pm->disable_s4, OBJ_PROP_FLAG_READWRITE,
+ NULL);
+ object_property_add_uint8_ptr(obj, ACPI_PM_PROP_S4_VAL,
+ &pm->s4_val, OBJ_PROP_FLAG_READWRITE, NULL);
object_property_add_bool(obj, ACPI_PM_PROP_TCO_ENABLED,
ich9_pm_get_enable_tco,
ich9_pm_set_enable_tco,
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index 12d99057f4..0ff0936790 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -626,13 +626,6 @@ static const MemoryRegionOps ich9_rst_cnt_ops = {
.endianness = DEVICE_LITTLE_ENDIAN
};
-static void ich9_lpc_get_sci_int(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ICH9LPCState *lpc = ICH9_LPC_DEVICE(obj);
- visit_type_uint8(v, name, &lpc->sci_gsi, errp);
-}
-
static void ich9_lpc_initfn(Object *obj)
{
ICH9LPCState *lpc = ICH9_LPC_DEVICE(obj);
@@ -640,9 +633,8 @@ static void ich9_lpc_initfn(Object *obj)
static const uint8_t acpi_enable_cmd = ICH9_APM_ACPI_ENABLE;
static const uint8_t acpi_disable_cmd = ICH9_APM_ACPI_DISABLE;
- object_property_add(obj, ACPI_PM_PROP_SCI_INT, "uint8",
- ich9_lpc_get_sci_int,
- NULL, NULL, NULL, NULL);
+ object_property_add_uint8_ptr(obj, ACPI_PM_PROP_SCI_INT,
+ &lpc->sci_gsi, OBJ_PROP_FLAG_READ, NULL);
object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_ENABLE_CMD,
&acpi_enable_cmd, OBJ_PROP_FLAG_READ, NULL);
object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE_CMD,
diff --git a/hw/misc/edu.c b/hw/misc/edu.c
index d5e2bdbb57..ff10f5b794 100644
--- a/hw/misc/edu.c
+++ b/hw/misc/edu.c
@@ -396,21 +396,14 @@ static void pci_edu_uninit(PCIDevice *pdev)
msi_uninit(pdev);
}
-static void edu_obj_uint64(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- uint64_t *val = opaque;
-
- visit_type_uint64(v, name, val, errp);
-}
-
static void edu_instance_init(Object *obj)
{
EduState *edu = EDU(obj);
edu->dma_mask = (1UL << 28) - 1;
- object_property_add(obj, "dma_mask", "uint64", edu_obj_uint64,
- edu_obj_uint64, NULL, &edu->dma_mask, NULL);
+ object_property_add_uint64_ptr(obj, "dma_mask",
+ &edu->dma_mask, OBJ_PROP_FLAG_READWRITE,
+ NULL);
}
static void edu_class_init(ObjectClass *class, void *data)
diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index a9b9ccc876..32c0d2fcd7 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -165,14 +165,6 @@ static void q35_host_get_pci_hole64_end(Object *obj, Visitor *v,
visit_type_uint64(v, name, &value, errp);
}
-static void q35_host_get_mmcfg_size(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- PCIExpressHost *e = PCIE_HOST_BRIDGE(obj);
-
- visit_type_uint64(v, name, &e->size, errp);
-}
-
/*
* NOTE: setting defaults for the mch.* fields in this table
* doesn't work, because mch is a separate QOM object that is
@@ -213,6 +205,7 @@ static void q35_host_initfn(Object *obj)
{
Q35PCIHost *s = Q35_HOST_DEVICE(obj);
PCIHostState *phb = PCI_HOST_BRIDGE(obj);
+ PCIExpressHost *pehb = PCIE_HOST_BRIDGE(obj);
memory_region_init_io(&phb->conf_mem, obj, &pci_host_conf_le_ops, phb,
"pci-conf-idx", 4);
@@ -242,9 +235,8 @@ static void q35_host_initfn(Object *obj)
q35_host_get_pci_hole64_end,
NULL, NULL, NULL, NULL);
- object_property_add(obj, PCIE_HOST_MCFG_SIZE, "uint64",
- q35_host_get_mmcfg_size,
- NULL, NULL, NULL, NULL);
+ object_property_add_uint64_ptr(obj, PCIE_HOST_MCFG_SIZE,
+ &pehb->size, OBJ_PROP_FLAG_READ, NULL);
object_property_add_link(obj, MCH_HOST_PROP_RAM_MEM, TYPE_MEMORY_REGION,
(Object **) &s->mch.ram_memory,
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index c9b2e0a5e0..2eb29f218d 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -3203,18 +3203,6 @@ static void spapr_set_resize_hpt(Object *obj, const char *value, Error **errp)
}
}
-static void spapr_get_vsmt(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- visit_type_uint32(v, name, (uint32_t *)opaque, errp);
-}
-
-static void spapr_set_vsmt(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- visit_type_uint32(v, name, (uint32_t *)opaque, errp);
-}
-
static char *spapr_get_ic_mode(Object *obj, Error **errp)
{
SpaprMachineState *spapr = SPAPR_MACHINE(obj);
@@ -3312,8 +3300,10 @@ static void spapr_instance_init(Object *obj)
object_property_set_description(obj, "resize-hpt",
"Resizing of the Hash Page Table (enabled, disabled, required)",
NULL);
- object_property_add(obj, "vsmt", "uint32", spapr_get_vsmt,
- spapr_set_vsmt, NULL, &spapr->vsmt, &error_abort);
+ object_property_add_uint32_ptr(obj, "vsmt",
+ &spapr->vsmt, OBJ_PROP_FLAG_READWRITE,
+ &error_abort);
+
object_property_set_description(obj, "vsmt",
"Virtual SMT: KVM behaves as if this were"
" the host's SMT mode", &error_abort);
diff --git a/memory.c b/memory.c
index aeaa8dcc9e..172098e09c 100644
--- a/memory.c
+++ b/memory.c
@@ -1158,15 +1158,6 @@ void memory_region_init(MemoryRegion *mr,
memory_region_do_init(mr, owner, name, size);
}
-static void memory_region_get_addr(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
- uint64_t value = mr->addr;
-
- visit_type_uint64(v, name, &value, errp);
-}
-
static void memory_region_get_container(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
@@ -1230,10 +1221,8 @@ static void memory_region_initfn(Object *obj)
NULL, NULL, &error_abort);
op->resolve = memory_region_resolve_container;
- object_property_add(OBJECT(mr), "addr", "uint64",
- memory_region_get_addr,
- NULL, /* memory_region_set_addr */
- NULL, NULL, &error_abort);
+ object_property_add_uint64_ptr(OBJECT(mr), "addr",
+ &mr->addr, OBJ_PROP_FLAG_READ, &error_abort);
object_property_add(OBJECT(mr), "priority", "uint32",
memory_region_get_priority,
NULL, /* memory_region_set_priority */
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index f86e71a260..f012bff49c 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1043,22 +1043,6 @@ static void arm_set_pmu(Object *obj, bool value, Error **errp)
cpu->has_pmu = value;
}
-static void arm_get_init_svtor(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ARMCPU *cpu = ARM_CPU(obj);
-
- visit_type_uint32(v, name, &cpu->init_svtor, errp);
-}
-
-static void arm_set_init_svtor(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- ARMCPU *cpu = ARM_CPU(obj);
-
- visit_type_uint32(v, name, &cpu->init_svtor, errp);
-}
-
unsigned int gt_cntfrq_period_ns(ARMCPU *cpu)
{
/*
@@ -1183,9 +1167,9 @@ void arm_cpu_post_init(Object *obj)
* a simple DEFINE_PROP_UINT32 for this because we want to permit
* the property to be set after realize.
*/
- object_property_add(obj, "init-svtor", "uint32",
- arm_get_init_svtor, arm_set_init_svtor,
- NULL, NULL, &error_abort);
+ object_property_add_uint32_ptr(obj, "init-svtor",
+ &cpu->init_svtor,
+ OBJ_PROP_FLAG_READWRITE, &error_abort);
}
qdev_property_add_static(DEVICE(obj), &arm_cpu_cfgend_property);
diff --git a/target/i386/sev.c b/target/i386/sev.c
index 024bb24e51..846018a12d 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -266,94 +266,6 @@ qsev_guest_class_init(ObjectClass *oc, void *data)
"guest owners session parameters (encoded with base64)", NULL);
}
-static void
-qsev_guest_set_handle(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- QSevGuestInfo *sev = QSEV_GUEST_INFO(obj);
- uint32_t value;
-
- visit_type_uint32(v, name, &value, errp);
- sev->handle = value;
-}
-
-static void
-qsev_guest_set_policy(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- QSevGuestInfo *sev = QSEV_GUEST_INFO(obj);
- uint32_t value;
-
- visit_type_uint32(v, name, &value, errp);
- sev->policy = value;
-}
-
-static void
-qsev_guest_set_cbitpos(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- QSevGuestInfo *sev = QSEV_GUEST_INFO(obj);
- uint32_t value;
-
- visit_type_uint32(v, name, &value, errp);
- sev->cbitpos = value;
-}
-
-static void
-qsev_guest_set_reduced_phys_bits(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- QSevGuestInfo *sev = QSEV_GUEST_INFO(obj);
- uint32_t value;
-
- visit_type_uint32(v, name, &value, errp);
- sev->reduced_phys_bits = value;
-}
-
-static void
-qsev_guest_get_policy(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- uint32_t value;
- QSevGuestInfo *sev = QSEV_GUEST_INFO(obj);
-
- value = sev->policy;
- visit_type_uint32(v, name, &value, errp);
-}
-
-static void
-qsev_guest_get_handle(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- uint32_t value;
- QSevGuestInfo *sev = QSEV_GUEST_INFO(obj);
-
- value = sev->handle;
- visit_type_uint32(v, name, &value, errp);
-}
-
-static void
-qsev_guest_get_cbitpos(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- uint32_t value;
- QSevGuestInfo *sev = QSEV_GUEST_INFO(obj);
-
- value = sev->cbitpos;
- visit_type_uint32(v, name, &value, errp);
-}
-
-static void
-qsev_guest_get_reduced_phys_bits(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- uint32_t value;
- QSevGuestInfo *sev = QSEV_GUEST_INFO(obj);
-
- value = sev->reduced_phys_bits;
- visit_type_uint32(v, name, &value, errp);
-}
-
static void
qsev_guest_init(Object *obj)
{
@@ -361,15 +273,15 @@ qsev_guest_init(Object *obj)
sev->sev_device = g_strdup(DEFAULT_SEV_DEVICE);
sev->policy = DEFAULT_GUEST_POLICY;
- object_property_add(obj, "policy", "uint32", qsev_guest_get_policy,
- qsev_guest_set_policy, NULL, NULL, NULL);
- object_property_add(obj, "handle", "uint32", qsev_guest_get_handle,
- qsev_guest_set_handle, NULL, NULL, NULL);
- object_property_add(obj, "cbitpos", "uint32", qsev_guest_get_cbitpos,
- qsev_guest_set_cbitpos, NULL, NULL, NULL);
- object_property_add(obj, "reduced-phys-bits", "uint32",
- qsev_guest_get_reduced_phys_bits,
- qsev_guest_set_reduced_phys_bits, NULL, NULL, NULL);
+ object_property_add_uint32_ptr(obj, "policy", &sev->policy,
+ OBJ_PROP_FLAG_READWRITE, NULL);
+ object_property_add_uint32_ptr(obj, "handle", &sev->handle,
+ OBJ_PROP_FLAG_READWRITE, NULL);
+ object_property_add_uint32_ptr(obj, "cbitpos", &sev->cbitpos,
+ OBJ_PROP_FLAG_READWRITE, NULL);
+ object_property_add_uint32_ptr(obj, "reduced-phys-bits",
+ &sev->reduced_phys_bits,
+ OBJ_PROP_FLAG_READWRITE, NULL);
}
/* sev guest info */
--
2.20.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH 0/4] Improve default object property_add uint helpers
2020-02-03 15:54 [PATCH 0/4] Improve default object property_add uint helpers Felipe Franciosi
` (3 preceding siblings ...)
2020-02-03 15:54 ` [PATCH 4/4] qom/object: Use common get/set uint helpers Felipe Franciosi
@ 2020-02-03 16:08 ` Felipe Franciosi
2020-02-03 16:10 ` Marc-André Lureau
4 siblings, 1 reply; 13+ messages in thread
From: Felipe Franciosi @ 2020-02-03 16:08 UTC (permalink / raw)
To: Marc-Andre Lureau
Cc: Eduardo Habkost, Alexey Kardashevskiy, Markus Armbruster,
qemu-devel, Stefan Hajnoczi, Phillipe Mathieu-Daude
Oops, I completely forgot to add a "v5" on the subject line.
(The changelog is there.)
Let me know if I should resend.
F.
> On Feb 3, 2020, at 3:54 PM, Felipe Franciosi <felipe@nutanix.com> wrote:
>
> This improves the family of object_property_add_uintXX_ptr helpers by enabling
> a default getter/setter only when desired. To prevent an API behavioural change
> (from clients that already used these helpers and did not want a setter), we
> add a OBJ_PROP_FLAG_READ flag that allow clients to only have a getter. Patch 1
> enhances the API and modify current users.
>
> While modifying the clients of the API, a couple of improvement opportunities
> were observed in ich9. These were added in separate patches (2 and 3).
>
> Patch 4 cleans up a lot of existing code by moving various objects to the
> enhanced API. Previously, those objects had their own getters/setters that only
> updated the values without further checks. Some of them actually lacked a check
> for setting overflows, which could have resulted in undesired values being set.
> The new default setters include a check for that, not updating the values in
> case of errors (and propagating them). If they did not provide an error
> pointer, then that behaviour was maintained.
>
> Felipe Franciosi (4):
> qom/object: enable setter for uint types
> ich9: fix getter type for sci_int property
> ich9: Simplify ich9_lpc_initfn
> qom/object: Use common get/set uint helpers
>
> hw/acpi/ich9.c | 99 ++------------------
> hw/acpi/pcihp.c | 7 +-
> hw/acpi/piix4.c | 12 +--
> hw/isa/lpc_ich9.c | 27 ++----
> hw/misc/edu.c | 13 +--
> hw/pci-host/q35.c | 14 +--
> hw/ppc/spapr.c | 18 +---
> hw/ppc/spapr_drc.c | 3 +-
> include/qom/object.h | 48 ++++++++--
> memory.c | 15 +--
> qom/object.c | 214 ++++++++++++++++++++++++++++++++++++++-----
> target/arm/cpu.c | 22 +----
> target/i386/sev.c | 106 ++-------------------
> ui/console.c | 4 +-
> 14 files changed, 283 insertions(+), 319 deletions(-)
>
> --
> 2.20.1
>
> Changelog:
> v1->v2:
> - Update sci_int directly instead of using stack variable
> - Defining an enhanced ObjectPropertyFlags instead of just 'readonly'
> - Erroring out directly (instead of using gotos) on default setters
> - Retaining lack of errp passing when it wasn't there
> v2->v3:
> - Rename flags _RD to _READ and _WR to _WRITE
> - Add a convenience _READWRITE flag
> - Drop the usage of UL in the bit flag definitions
> v3->v4:
> - Drop changes to hw/vfio/pci-quirks.c
> v4->v5:
> - Rebase on latest master
> - Available here: https://github.com/franciozzy/qemu/tree/autosetters
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 0/4] Improve default object property_add uint helpers
2020-02-03 16:08 ` [PATCH 0/4] Improve default object property_add " Felipe Franciosi
@ 2020-02-03 16:10 ` Marc-André Lureau
2020-02-03 17:03 ` Felipe Franciosi
0 siblings, 1 reply; 13+ messages in thread
From: Marc-André Lureau @ 2020-02-03 16:10 UTC (permalink / raw)
To: Felipe Franciosi
Cc: Eduardo Habkost, Alexey Kardashevskiy, Markus Armbruster,
qemu-devel, Stefan Hajnoczi, Phillipe Mathieu-Daude
Hi
On Mon, Feb 3, 2020 at 5:08 PM Felipe Franciosi <felipe@nutanix.com> wrote:
>
> Oops, I completely forgot to add a "v5" on the subject line.
>
> (The changelog is there.)
>
> Let me know if I should resend.
>
> F.
>
> > On Feb 3, 2020, at 3:54 PM, Felipe Franciosi <felipe@nutanix.com> wrote:
> >
> > This improves the family of object_property_add_uintXX_ptr helpers by enabling
> > a default getter/setter only when desired. To prevent an API behavioural change
> > (from clients that already used these helpers and did not want a setter), we
> > add a OBJ_PROP_FLAG_READ flag that allow clients to only have a getter. Patch 1
> > enhances the API and modify current users.
> >
> > While modifying the clients of the API, a couple of improvement opportunities
> > were observed in ich9. These were added in separate patches (2 and 3).
> >
> > Patch 4 cleans up a lot of existing code by moving various objects to the
> > enhanced API. Previously, those objects had their own getters/setters that only
> > updated the values without further checks. Some of them actually lacked a check
> > for setting overflows, which could have resulted in undesired values being set.
> > The new default setters include a check for that, not updating the values in
> > case of errors (and propagating them). If they did not provide an error
> > pointer, then that behaviour was maintained.
> >
> > Felipe Franciosi (4):
> > qom/object: enable setter for uint types
> > ich9: fix getter type for sci_int property
> > ich9: Simplify ich9_lpc_initfn
> > qom/object: Use common get/set uint helpers
> >
> > hw/acpi/ich9.c | 99 ++------------------
> > hw/acpi/pcihp.c | 7 +-
> > hw/acpi/piix4.c | 12 +--
> > hw/isa/lpc_ich9.c | 27 ++----
> > hw/misc/edu.c | 13 +--
> > hw/pci-host/q35.c | 14 +--
> > hw/ppc/spapr.c | 18 +---
> > hw/ppc/spapr_drc.c | 3 +-
> > include/qom/object.h | 48 ++++++++--
> > memory.c | 15 +--
> > qom/object.c | 214 ++++++++++++++++++++++++++++++++++++++-----
> > target/arm/cpu.c | 22 +----
> > target/i386/sev.c | 106 ++-------------------
> > ui/console.c | 4 +-
> > 14 files changed, 283 insertions(+), 319 deletions(-)
> >
> > --
> > 2.20.1
> >
> > Changelog:
> > v1->v2:
> > - Update sci_int directly instead of using stack variable
> > - Defining an enhanced ObjectPropertyFlags instead of just 'readonly'
> > - Erroring out directly (instead of using gotos) on default setters
> > - Retaining lack of errp passing when it wasn't there
> > v2->v3:
> > - Rename flags _RD to _READ and _WR to _WRITE
> > - Add a convenience _READWRITE flag
> > - Drop the usage of UL in the bit flag definitions
> > v3->v4:
> > - Drop changes to hw/vfio/pci-quirks.c
> > v4->v5:
> > - Rebase on latest master
> > - Available here: https://github.com/franciozzy/qemu/tree/autosetters
Thanks for the rebase, it looks good overall, but:
qom/object.c:2707:1: error: control reaches end of non-void function
[-Werror=return-type]
--
Marc-André Lureau
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 0/4] Improve default object property_add uint helpers
2020-02-03 16:10 ` Marc-André Lureau
@ 2020-02-03 17:03 ` Felipe Franciosi
0 siblings, 0 replies; 13+ messages in thread
From: Felipe Franciosi @ 2020-02-03 17:03 UTC (permalink / raw)
To: Marc-André Lureau
Cc: Eduardo Habkost, Alexey Kardashevskiy, Markus Armbruster,
qemu-devel, Stefan Hajnoczi, Phillipe Mathieu-Daude
> On Feb 3, 2020, at 4:10 PM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
>
> Hi
>
> On Mon, Feb 3, 2020 at 5:08 PM Felipe Franciosi <felipe@nutanix.com> wrote:
>>
>> Oops, I completely forgot to add a "v5" on the subject line.
>>
>> (The changelog is there.)
>>
>> Let me know if I should resend.
>>
>> F.
>>
>>> On Feb 3, 2020, at 3:54 PM, Felipe Franciosi <felipe@nutanix.com> wrote:
>>>
>>> This improves the family of object_property_add_uintXX_ptr helpers by enabling
>>> a default getter/setter only when desired. To prevent an API behavioural change
>>> (from clients that already used these helpers and did not want a setter), we
>>> add a OBJ_PROP_FLAG_READ flag that allow clients to only have a getter. Patch 1
>>> enhances the API and modify current users.
>>>
>>> While modifying the clients of the API, a couple of improvement opportunities
>>> were observed in ich9. These were added in separate patches (2 and 3).
>>>
>>> Patch 4 cleans up a lot of existing code by moving various objects to the
>>> enhanced API. Previously, those objects had their own getters/setters that only
>>> updated the values without further checks. Some of them actually lacked a check
>>> for setting overflows, which could have resulted in undesired values being set.
>>> The new default setters include a check for that, not updating the values in
>>> case of errors (and propagating them). If they did not provide an error
>>> pointer, then that behaviour was maintained.
>>>
>>> Felipe Franciosi (4):
>>> qom/object: enable setter for uint types
>>> ich9: fix getter type for sci_int property
>>> ich9: Simplify ich9_lpc_initfn
>>> qom/object: Use common get/set uint helpers
>>>
>>> hw/acpi/ich9.c | 99 ++------------------
>>> hw/acpi/pcihp.c | 7 +-
>>> hw/acpi/piix4.c | 12 +--
>>> hw/isa/lpc_ich9.c | 27 ++----
>>> hw/misc/edu.c | 13 +--
>>> hw/pci-host/q35.c | 14 +--
>>> hw/ppc/spapr.c | 18 +---
>>> hw/ppc/spapr_drc.c | 3 +-
>>> include/qom/object.h | 48 ++++++++--
>>> memory.c | 15 +--
>>> qom/object.c | 214 ++++++++++++++++++++++++++++++++++++++-----
>>> target/arm/cpu.c | 22 +----
>>> target/i386/sev.c | 106 ++-------------------
>>> ui/console.c | 4 +-
>>> 14 files changed, 283 insertions(+), 319 deletions(-)
>>>
>>> --
>>> 2.20.1
>>>
>>> Changelog:
>>> v1->v2:
>>> - Update sci_int directly instead of using stack variable
>>> - Defining an enhanced ObjectPropertyFlags instead of just 'readonly'
>>> - Erroring out directly (instead of using gotos) on default setters
>>> - Retaining lack of errp passing when it wasn't there
>>> v2->v3:
>>> - Rename flags _RD to _READ and _WR to _WRITE
>>> - Add a convenience _READWRITE flag
>>> - Drop the usage of UL in the bit flag definitions
>>> v3->v4:
>>> - Drop changes to hw/vfio/pci-quirks.c
>>> v4->v5:
>>> - Rebase on latest master
>>> - Available here: https://github.com/franciozzy/qemu/tree/autosetters
>
> Thanks for the rebase, it looks good overall, but:
>
> qom/object.c:2707:1: error: control reaches end of non-void function
> [-Werror=return-type]
That was an oversight. :)
Let me fix it and send a corrected (v6) subject line.
Felipe
>
>
> --
> Marc-André Lureau
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 1/4] qom/object: enable setter for uint types
2019-11-26 12:18 ` Marc-André Lureau
@ 2019-11-26 13:41 ` Felipe Franciosi
0 siblings, 0 replies; 13+ messages in thread
From: Felipe Franciosi @ 2019-11-26 13:41 UTC (permalink / raw)
To: Marc-André Lureau
Cc: qemu-devel, Eduardo Habkost, Stefan Hajnoczi, Markus Armbruster
> On Nov 26, 2019, at 12:18 PM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
>
> Hi
>
> On Tue, Nov 26, 2019 at 4:03 PM Felipe Franciosi <felipe@nutanix.com> wrote:
>>
>> Heya
>>
>>> On Nov 26, 2019, at 8:40 AM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
>>>
>>> Hi
>>>
>>> On Mon, Nov 25, 2019 at 7:40 PM Felipe Franciosi <felipe@nutanix.com> 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.
>>>>
>>>> This enhances the uint-specific property helper APIs by adding a
>>>> 'readonly' field and modifying all users of that API to set this
>>>> parameter to true. If 'readonly' is false, though, the helper will add
>>>> an automatic setter for the value.
>>>>
>>>> Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
>>>> ---
>>>> hw/acpi/ich9.c | 4 +-
>>>> hw/acpi/pcihp.c | 6 +-
>>>> hw/acpi/piix4.c | 12 ++--
>>>> hw/isa/lpc_ich9.c | 4 +-
>>>> hw/ppc/spapr_drc.c | 2 +-
>>>> include/qom/object.h | 28 +++++---
>>>> qom/object.c | 152 ++++++++++++++++++++++++++++++++++++-------
>>>> ui/console.c | 3 +-
>>>> 8 files changed, 163 insertions(+), 48 deletions(-)
>>>>
>>>> diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
>>>> index 2034dd749e..94dc5147ce 100644
>>>> --- a/hw/acpi/ich9.c
>>>> +++ b/hw/acpi/ich9.c
>>>> @@ -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, true, 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, true, 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..70bc1408e6 100644
>>>> --- a/hw/acpi/pcihp.c
>>>> +++ b/hw/acpi/pcihp.c
>>>> @@ -80,7 +80,7 @@ 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, true, &error_abort);
>>>> }
>>>>
>>>> return bsel_alloc;
>>>> @@ -373,9 +373,9 @@ 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);
>>>> + true, &error_abort);
>>>> object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_LEN_PROP, &s->io_len,
>>>> - &error_abort);
>>>> + true, &error_abort);
>>>> }
>>>>
>>>> const VMStateDescription vmstate_acpi_pcihp_pci_status = {
>>>> diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
>>>> index 93aec2dd2c..032ba11e62 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 = 9;
>>>>
>>>> object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
>>>> - &acpi_enable_cmd, NULL);
>>>> + &acpi_enable_cmd, true, NULL);
>>>> object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
>>>> - &acpi_disable_cmd, NULL);
>>>> + &acpi_disable_cmd, true, NULL);
>>>> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
>>>> - &gpe0_blk, NULL);
>>>> + &gpe0_blk, true, NULL);
>>>> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
>>>> - &gpe0_blk_len, NULL);
>>>> + &gpe0_blk_len, true, NULL);
>>>> object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
>>>> - &sci_int, NULL);
>>>> + &sci_int, true, NULL);
>>>> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
>>>> - &s->io_base, NULL);
>>>> + &s->io_base, true, 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..5555ce3342 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, true, NULL);
>>>> object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE_CMD,
>>>> - &acpi_disable_cmd, NULL);
>>>> + &acpi_disable_cmd, true, NULL);
>>>>
>>>> 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..76f389f56a 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 = 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, true, 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..8fc28ed0c9 100644
>>>> --- a/include/qom/object.h
>>>> +++ b/include/qom/object.h
>>>> @@ -1584,60 +1584,72 @@ void object_class_property_add_tm(ObjectClass *klass, const char *name,
>>>> * @obj: the object to add a property to
>>>> * @name: the name of the property
>>>> * @v: pointer to value
>>>> + * @readonly: don't add setter for value
>>>> * @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, bool readonly,
>>>> + Error **errp);
>>>> void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
>>>> - const uint8_t *v, Error **errp);
>>>> + const uint8_t *v, bool readonly,
>>>> + Error **errp);
>>>
>>> It would help readability and extensibility if we had an enum/bitflag:
>>> OBJECT_PROP_WRITABLE, OBJECT_PROP_READABLE (& OBJECT_PROP_READWRITE
>>> alias).
>>
>> I quite like your suggestion. When going through the various clients
>> of these, I found that many of them do not accept a zero value on the
>> setter. I didn't include them on this series, but if we had an
>> OBJ_PROP_REJECT_ZERO_VAL (or similar), we could take them in the
>> generic setters as well. Let me have a stab at that on the v2.
>
> Hmm, that's a bit more involved.
>
> I would introduce min/max ranges instead. Let's not do that now.
Ok. I didn't see (m)any uses where a range was required. There were
quite a few particularly rejecting zeros, though. I like the
properties idea anyway, but I think it should be a bitmask so you can
leave the door open for these combinations. Thoughts?
>
>>
>>>
>>>>
>>>> /**
>>>> * object_property_add_uint16_ptr:
>>>> * @obj: the object to add a property to
>>>> * @name: the name of the property
>>>> * @v: pointer to value
>>>> + * @readonly: don't add setter for value
>>>> * @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, bool readonly,
>>>> + Error **errp);
>>>> void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
>>>> - const uint16_t *v, Error **errp);
>>>> + const uint16_t *v, bool readonly,
>>>> + 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
>>>> + * @readonly: don't add setter for value
>>>> * @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, bool readonly,
>>>> + Error **errp);
>>>> void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
>>>> - const uint32_t *v, Error **errp);
>>>> + const uint32_t *v, bool readonly,
>>>> + 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
>>>> + * @readonly: don't add setter for value
>>>> * @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, bool readonly,
>>>> + Error **Errp);
>>>> void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
>>>> - const uint64_t *v, Error **Errp);
>>>> + const uint64_t *v, bool readonly,
>>>> + Error **Errp);
>>>>
>>>> /**
>>>> * object_property_add_alias:
>>>> diff --git a/qom/object.c b/qom/object.c
>>>> index d51b57fba1..775f702465 100644
>>>> --- a/qom/object.c
>>>> +++ b/qom/object.c
>>>> @@ -2326,6 +2326,26 @@ 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) {
>>>> + goto err;
>>>> + }
>>>> +
>>>> + *field = value;
>>>> +
>>>> + return;
>>>> +
>>>> +err:
>>>> + error_propagate(errp, local_err);
>>>> +}
>>>
>>>
>>> This is probably going to be refactored once the auto error series
>>> land. But in the meantime, it would be nice to remove the goto label.
>>
>> I have just mimicked what other code does. Do you prefer the
>> error_propagate + return within the if()? I think I do.
>
> Ok, I didn't look at existing code. Up to you
Ok. In this case I may keep what I have in the patch to align with how
it's done everywhere else.
F.
>
>>
>> F.
>>
>>>
>>>> +
>>>> static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
>>>> void *opaque, Error **errp)
>>>> {
>>>> @@ -2333,6 +2353,26 @@ 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) {
>>>> + goto err;
>>>> + }
>>>> +
>>>> + *field = value;
>>>> +
>>>> + return;
>>>> +
>>>> +err:
>>>> + error_propagate(errp, local_err);
>>>> +}
>>>> +
>>>
>>> same
>>>
>>>> static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
>>>> void *opaque, Error **errp)
>>>> {
>>>> @@ -2340,6 +2380,26 @@ 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) {
>>>> + goto err;
>>>> + }
>>>> +
>>>> + *field = value;
>>>> +
>>>> + return;
>>>> +
>>>> +err:
>>>> + error_propagate(errp, local_err);
>>>> +}
>>>
>>> etc
>>>
>>>> +
>>>> static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
>>>> void *opaque, Error **errp)
>>>> {
>>>> @@ -2347,60 +2407,104 @@ 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 = opaque;
>>>> + uint64_t value;
>>>> + Error *local_err = NULL;
>>>> +
>>>> + visit_type_uint64(v, name, &value, &local_err);
>>>> + if (local_err) {
>>>> + goto err;
>>>> + }
>>>> +
>>>> + *field = value;
>>>> +
>>>> + return;
>>>> +
>>>> +err:
>>>> + error_propagate(errp, local_err);
>>>> +}
>>>> +
>>>> void object_property_add_uint8_ptr(Object *obj, const char *name,
>>>> - const uint8_t *v, Error **errp)
>>>> + const uint8_t *v, bool readonly,
>>>> + Error **errp)
>>>> {
>>>> - object_property_add(obj, name, "uint8", property_get_uint8_ptr,
>>>> - NULL, NULL, (void *)v, errp);
>>>> + object_property_add(obj, name, "uint8",
>>>> + property_get_uint8_ptr,
>>>> + readonly ? NULL : property_set_uint8_ptr,
>>>> + 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, bool readonly,
>>>> + Error **errp)
>>>> {
>>>> - object_class_property_add(klass, name, "uint8", property_get_uint8_ptr,
>>>> - NULL, NULL, (void *)v, errp);
>>>> + object_class_property_add(klass, name, "uint8",
>>>> + property_get_uint8_ptr,
>>>> + readonly ? NULL : property_set_uint8_ptr,
>>>> + 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, bool readonly,
>>>> + Error **errp)
>>>> {
>>>> - object_property_add(obj, name, "uint16", property_get_uint16_ptr,
>>>> - NULL, NULL, (void *)v, errp);
>>>> + object_property_add(obj, name, "uint16",
>>>> + property_get_uint16_ptr,
>>>> + readonly ? NULL : property_set_uint16_ptr,
>>>> + NULL, (void *)v, errp);
>>>> }
>>>>
>>>> void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
>>>> - const uint16_t *v, Error **errp)
>>>> + const uint16_t *v, bool readonly,
>>>> + Error **errp)
>>>> {
>>>> - object_class_property_add(klass, name, "uint16", property_get_uint16_ptr,
>>>> - NULL, NULL, (void *)v, errp);
>>>> + object_class_property_add(klass, name, "uint16",
>>>> + property_get_uint16_ptr,
>>>> + readonly ? NULL : property_set_uint16_ptr,
>>>> + 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, bool readonly,
>>>> + Error **errp)
>>>> {
>>>> - object_property_add(obj, name, "uint32", property_get_uint32_ptr,
>>>> - NULL, NULL, (void *)v, errp);
>>>> + object_property_add(obj, name, "uint32",
>>>> + property_get_uint32_ptr,
>>>> + readonly ? NULL : property_set_uint32_ptr,
>>>> + NULL, (void *)v, errp);
>>>> }
>>>>
>>>> void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
>>>> - const uint32_t *v, Error **errp)
>>>> + const uint32_t *v, bool readonly,
>>>> + Error **errp)
>>>> {
>>>> - object_class_property_add(klass, name, "uint32", property_get_uint32_ptr,
>>>> - NULL, NULL, (void *)v, errp);
>>>> + object_class_property_add(klass, name, "uint32",
>>>> + property_get_uint32_ptr,
>>>> + readonly ? NULL : property_set_uint32_ptr,
>>>> + 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, bool readonly,
>>>> + Error **errp)
>>>> {
>>>> - object_property_add(obj, name, "uint64", property_get_uint64_ptr,
>>>> - NULL, NULL, (void *)v, errp);
>>>> + object_property_add(obj, name, "uint64",
>>>> + property_get_uint64_ptr,
>>>> + property_set_uint64_ptr,
>>>> + NULL, (void *)v, errp);
>>>> }
>>>>
>>>> void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
>>>> - const uint64_t *v, Error **errp)
>>>> + const uint64_t *v, bool readonly,
>>>> + Error **errp)
>>>> {
>>>> - object_class_property_add(klass, name, "uint64", property_get_uint64_ptr,
>>>> - NULL, NULL, (void *)v, errp);
>>>> + object_class_property_add(klass, name, "uint64",
>>>> + property_get_uint64_ptr,
>>>> + readonly ? NULL : property_set_uint64_ptr,
>>>> + NULL, (void *)v, errp);
>>>> }
>>>>
>>>> typedef struct {
>>>> diff --git a/ui/console.c b/ui/console.c
>>>> index 82d1ddac9c..3375c33d71 100644
>>>> --- a/ui/console.c
>>>> +++ b/ui/console.c
>>>> @@ -1296,8 +1296,7 @@ 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, true, &error_abort);
>>>>
>>>> if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
>>>> (console_type == GRAPHIC_CONSOLE))) {
>>>> --
>>>> 2.20.1
>>>>
>>>
>>> looks good otherwise
>>>
>>>
>>> --
>>> Marc-André Lureau
>>
>
>
> --
> Marc-André Lureau
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 1/4] qom/object: enable setter for uint types
2019-11-26 12:03 ` Felipe Franciosi
@ 2019-11-26 12:18 ` Marc-André Lureau
2019-11-26 13:41 ` Felipe Franciosi
0 siblings, 1 reply; 13+ messages in thread
From: Marc-André Lureau @ 2019-11-26 12:18 UTC (permalink / raw)
To: Felipe Franciosi
Cc: qemu-devel, Eduardo Habkost, Stefan Hajnoczi, Markus Armbruster
Hi
On Tue, Nov 26, 2019 at 4:03 PM Felipe Franciosi <felipe@nutanix.com> wrote:
>
> Heya
>
> > On Nov 26, 2019, at 8:40 AM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
> >
> > Hi
> >
> > On Mon, Nov 25, 2019 at 7:40 PM Felipe Franciosi <felipe@nutanix.com> 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.
> >>
> >> This enhances the uint-specific property helper APIs by adding a
> >> 'readonly' field and modifying all users of that API to set this
> >> parameter to true. If 'readonly' is false, though, the helper will add
> >> an automatic setter for the value.
> >>
> >> Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
> >> ---
> >> hw/acpi/ich9.c | 4 +-
> >> hw/acpi/pcihp.c | 6 +-
> >> hw/acpi/piix4.c | 12 ++--
> >> hw/isa/lpc_ich9.c | 4 +-
> >> hw/ppc/spapr_drc.c | 2 +-
> >> include/qom/object.h | 28 +++++---
> >> qom/object.c | 152 ++++++++++++++++++++++++++++++++++++-------
> >> ui/console.c | 3 +-
> >> 8 files changed, 163 insertions(+), 48 deletions(-)
> >>
> >> diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
> >> index 2034dd749e..94dc5147ce 100644
> >> --- a/hw/acpi/ich9.c
> >> +++ b/hw/acpi/ich9.c
> >> @@ -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, true, 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, true, 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..70bc1408e6 100644
> >> --- a/hw/acpi/pcihp.c
> >> +++ b/hw/acpi/pcihp.c
> >> @@ -80,7 +80,7 @@ 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, true, &error_abort);
> >> }
> >>
> >> return bsel_alloc;
> >> @@ -373,9 +373,9 @@ 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);
> >> + true, &error_abort);
> >> object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_LEN_PROP, &s->io_len,
> >> - &error_abort);
> >> + true, &error_abort);
> >> }
> >>
> >> const VMStateDescription vmstate_acpi_pcihp_pci_status = {
> >> diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
> >> index 93aec2dd2c..032ba11e62 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 = 9;
> >>
> >> object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
> >> - &acpi_enable_cmd, NULL);
> >> + &acpi_enable_cmd, true, NULL);
> >> object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
> >> - &acpi_disable_cmd, NULL);
> >> + &acpi_disable_cmd, true, NULL);
> >> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
> >> - &gpe0_blk, NULL);
> >> + &gpe0_blk, true, NULL);
> >> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
> >> - &gpe0_blk_len, NULL);
> >> + &gpe0_blk_len, true, NULL);
> >> object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
> >> - &sci_int, NULL);
> >> + &sci_int, true, NULL);
> >> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
> >> - &s->io_base, NULL);
> >> + &s->io_base, true, 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..5555ce3342 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, true, NULL);
> >> object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE_CMD,
> >> - &acpi_disable_cmd, NULL);
> >> + &acpi_disable_cmd, true, NULL);
> >>
> >> 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..76f389f56a 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 = 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, true, 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..8fc28ed0c9 100644
> >> --- a/include/qom/object.h
> >> +++ b/include/qom/object.h
> >> @@ -1584,60 +1584,72 @@ void object_class_property_add_tm(ObjectClass *klass, const char *name,
> >> * @obj: the object to add a property to
> >> * @name: the name of the property
> >> * @v: pointer to value
> >> + * @readonly: don't add setter for value
> >> * @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, bool readonly,
> >> + Error **errp);
> >> void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
> >> - const uint8_t *v, Error **errp);
> >> + const uint8_t *v, bool readonly,
> >> + Error **errp);
> >
> > It would help readability and extensibility if we had an enum/bitflag:
> > OBJECT_PROP_WRITABLE, OBJECT_PROP_READABLE (& OBJECT_PROP_READWRITE
> > alias).
>
> I quite like your suggestion. When going through the various clients
> of these, I found that many of them do not accept a zero value on the
> setter. I didn't include them on this series, but if we had an
> OBJ_PROP_REJECT_ZERO_VAL (or similar), we could take them in the
> generic setters as well. Let me have a stab at that on the v2.
Hmm, that's a bit more involved.
I would introduce min/max ranges instead. Let's not do that now.
>
> >
> >>
> >> /**
> >> * object_property_add_uint16_ptr:
> >> * @obj: the object to add a property to
> >> * @name: the name of the property
> >> * @v: pointer to value
> >> + * @readonly: don't add setter for value
> >> * @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, bool readonly,
> >> + Error **errp);
> >> void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
> >> - const uint16_t *v, Error **errp);
> >> + const uint16_t *v, bool readonly,
> >> + 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
> >> + * @readonly: don't add setter for value
> >> * @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, bool readonly,
> >> + Error **errp);
> >> void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
> >> - const uint32_t *v, Error **errp);
> >> + const uint32_t *v, bool readonly,
> >> + 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
> >> + * @readonly: don't add setter for value
> >> * @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, bool readonly,
> >> + Error **Errp);
> >> void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
> >> - const uint64_t *v, Error **Errp);
> >> + const uint64_t *v, bool readonly,
> >> + Error **Errp);
> >>
> >> /**
> >> * object_property_add_alias:
> >> diff --git a/qom/object.c b/qom/object.c
> >> index d51b57fba1..775f702465 100644
> >> --- a/qom/object.c
> >> +++ b/qom/object.c
> >> @@ -2326,6 +2326,26 @@ 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) {
> >> + goto err;
> >> + }
> >> +
> >> + *field = value;
> >> +
> >> + return;
> >> +
> >> +err:
> >> + error_propagate(errp, local_err);
> >> +}
> >
> >
> > This is probably going to be refactored once the auto error series
> > land. But in the meantime, it would be nice to remove the goto label.
>
> I have just mimicked what other code does. Do you prefer the
> error_propagate + return within the if()? I think I do.
Ok, I didn't look at existing code. Up to you
>
> F.
>
> >
> >> +
> >> static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
> >> void *opaque, Error **errp)
> >> {
> >> @@ -2333,6 +2353,26 @@ 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) {
> >> + goto err;
> >> + }
> >> +
> >> + *field = value;
> >> +
> >> + return;
> >> +
> >> +err:
> >> + error_propagate(errp, local_err);
> >> +}
> >> +
> >
> > same
> >
> >> static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
> >> void *opaque, Error **errp)
> >> {
> >> @@ -2340,6 +2380,26 @@ 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) {
> >> + goto err;
> >> + }
> >> +
> >> + *field = value;
> >> +
> >> + return;
> >> +
> >> +err:
> >> + error_propagate(errp, local_err);
> >> +}
> >
> > etc
> >
> >> +
> >> static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
> >> void *opaque, Error **errp)
> >> {
> >> @@ -2347,60 +2407,104 @@ 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 = opaque;
> >> + uint64_t value;
> >> + Error *local_err = NULL;
> >> +
> >> + visit_type_uint64(v, name, &value, &local_err);
> >> + if (local_err) {
> >> + goto err;
> >> + }
> >> +
> >> + *field = value;
> >> +
> >> + return;
> >> +
> >> +err:
> >> + error_propagate(errp, local_err);
> >> +}
> >> +
> >> void object_property_add_uint8_ptr(Object *obj, const char *name,
> >> - const uint8_t *v, Error **errp)
> >> + const uint8_t *v, bool readonly,
> >> + Error **errp)
> >> {
> >> - object_property_add(obj, name, "uint8", property_get_uint8_ptr,
> >> - NULL, NULL, (void *)v, errp);
> >> + object_property_add(obj, name, "uint8",
> >> + property_get_uint8_ptr,
> >> + readonly ? NULL : property_set_uint8_ptr,
> >> + 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, bool readonly,
> >> + Error **errp)
> >> {
> >> - object_class_property_add(klass, name, "uint8", property_get_uint8_ptr,
> >> - NULL, NULL, (void *)v, errp);
> >> + object_class_property_add(klass, name, "uint8",
> >> + property_get_uint8_ptr,
> >> + readonly ? NULL : property_set_uint8_ptr,
> >> + 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, bool readonly,
> >> + Error **errp)
> >> {
> >> - object_property_add(obj, name, "uint16", property_get_uint16_ptr,
> >> - NULL, NULL, (void *)v, errp);
> >> + object_property_add(obj, name, "uint16",
> >> + property_get_uint16_ptr,
> >> + readonly ? NULL : property_set_uint16_ptr,
> >> + NULL, (void *)v, errp);
> >> }
> >>
> >> void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
> >> - const uint16_t *v, Error **errp)
> >> + const uint16_t *v, bool readonly,
> >> + Error **errp)
> >> {
> >> - object_class_property_add(klass, name, "uint16", property_get_uint16_ptr,
> >> - NULL, NULL, (void *)v, errp);
> >> + object_class_property_add(klass, name, "uint16",
> >> + property_get_uint16_ptr,
> >> + readonly ? NULL : property_set_uint16_ptr,
> >> + 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, bool readonly,
> >> + Error **errp)
> >> {
> >> - object_property_add(obj, name, "uint32", property_get_uint32_ptr,
> >> - NULL, NULL, (void *)v, errp);
> >> + object_property_add(obj, name, "uint32",
> >> + property_get_uint32_ptr,
> >> + readonly ? NULL : property_set_uint32_ptr,
> >> + NULL, (void *)v, errp);
> >> }
> >>
> >> void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
> >> - const uint32_t *v, Error **errp)
> >> + const uint32_t *v, bool readonly,
> >> + Error **errp)
> >> {
> >> - object_class_property_add(klass, name, "uint32", property_get_uint32_ptr,
> >> - NULL, NULL, (void *)v, errp);
> >> + object_class_property_add(klass, name, "uint32",
> >> + property_get_uint32_ptr,
> >> + readonly ? NULL : property_set_uint32_ptr,
> >> + 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, bool readonly,
> >> + Error **errp)
> >> {
> >> - object_property_add(obj, name, "uint64", property_get_uint64_ptr,
> >> - NULL, NULL, (void *)v, errp);
> >> + object_property_add(obj, name, "uint64",
> >> + property_get_uint64_ptr,
> >> + property_set_uint64_ptr,
> >> + NULL, (void *)v, errp);
> >> }
> >>
> >> void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
> >> - const uint64_t *v, Error **errp)
> >> + const uint64_t *v, bool readonly,
> >> + Error **errp)
> >> {
> >> - object_class_property_add(klass, name, "uint64", property_get_uint64_ptr,
> >> - NULL, NULL, (void *)v, errp);
> >> + object_class_property_add(klass, name, "uint64",
> >> + property_get_uint64_ptr,
> >> + readonly ? NULL : property_set_uint64_ptr,
> >> + NULL, (void *)v, errp);
> >> }
> >>
> >> typedef struct {
> >> diff --git a/ui/console.c b/ui/console.c
> >> index 82d1ddac9c..3375c33d71 100644
> >> --- a/ui/console.c
> >> +++ b/ui/console.c
> >> @@ -1296,8 +1296,7 @@ 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, true, &error_abort);
> >>
> >> if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
> >> (console_type == GRAPHIC_CONSOLE))) {
> >> --
> >> 2.20.1
> >>
> >
> > looks good otherwise
> >
> >
> > --
> > Marc-André Lureau
>
--
Marc-André Lureau
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 1/4] qom/object: enable setter for uint types
2019-11-26 8:40 ` Marc-André Lureau
@ 2019-11-26 12:03 ` Felipe Franciosi
2019-11-26 12:18 ` Marc-André Lureau
0 siblings, 1 reply; 13+ messages in thread
From: Felipe Franciosi @ 2019-11-26 12:03 UTC (permalink / raw)
To: Marc-André Lureau
Cc: qemu-devel, Eduardo Habkost, Stefan Hajnoczi, Markus Armbruster
Heya
> On Nov 26, 2019, at 8:40 AM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
>
> Hi
>
> On Mon, Nov 25, 2019 at 7:40 PM Felipe Franciosi <felipe@nutanix.com> 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.
>>
>> This enhances the uint-specific property helper APIs by adding a
>> 'readonly' field and modifying all users of that API to set this
>> parameter to true. If 'readonly' is false, though, the helper will add
>> an automatic setter for the value.
>>
>> Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
>> ---
>> hw/acpi/ich9.c | 4 +-
>> hw/acpi/pcihp.c | 6 +-
>> hw/acpi/piix4.c | 12 ++--
>> hw/isa/lpc_ich9.c | 4 +-
>> hw/ppc/spapr_drc.c | 2 +-
>> include/qom/object.h | 28 +++++---
>> qom/object.c | 152 ++++++++++++++++++++++++++++++++++++-------
>> ui/console.c | 3 +-
>> 8 files changed, 163 insertions(+), 48 deletions(-)
>>
>> diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
>> index 2034dd749e..94dc5147ce 100644
>> --- a/hw/acpi/ich9.c
>> +++ b/hw/acpi/ich9.c
>> @@ -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, true, 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, true, 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..70bc1408e6 100644
>> --- a/hw/acpi/pcihp.c
>> +++ b/hw/acpi/pcihp.c
>> @@ -80,7 +80,7 @@ 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, true, &error_abort);
>> }
>>
>> return bsel_alloc;
>> @@ -373,9 +373,9 @@ 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);
>> + true, &error_abort);
>> object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_LEN_PROP, &s->io_len,
>> - &error_abort);
>> + true, &error_abort);
>> }
>>
>> const VMStateDescription vmstate_acpi_pcihp_pci_status = {
>> diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
>> index 93aec2dd2c..032ba11e62 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 = 9;
>>
>> object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
>> - &acpi_enable_cmd, NULL);
>> + &acpi_enable_cmd, true, NULL);
>> object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
>> - &acpi_disable_cmd, NULL);
>> + &acpi_disable_cmd, true, NULL);
>> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
>> - &gpe0_blk, NULL);
>> + &gpe0_blk, true, NULL);
>> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
>> - &gpe0_blk_len, NULL);
>> + &gpe0_blk_len, true, NULL);
>> object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
>> - &sci_int, NULL);
>> + &sci_int, true, NULL);
>> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
>> - &s->io_base, NULL);
>> + &s->io_base, true, 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..5555ce3342 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, true, NULL);
>> object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE_CMD,
>> - &acpi_disable_cmd, NULL);
>> + &acpi_disable_cmd, true, NULL);
>>
>> 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..76f389f56a 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 = 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, true, 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..8fc28ed0c9 100644
>> --- a/include/qom/object.h
>> +++ b/include/qom/object.h
>> @@ -1584,60 +1584,72 @@ void object_class_property_add_tm(ObjectClass *klass, const char *name,
>> * @obj: the object to add a property to
>> * @name: the name of the property
>> * @v: pointer to value
>> + * @readonly: don't add setter for value
>> * @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, bool readonly,
>> + Error **errp);
>> void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
>> - const uint8_t *v, Error **errp);
>> + const uint8_t *v, bool readonly,
>> + Error **errp);
>
> It would help readability and extensibility if we had an enum/bitflag:
> OBJECT_PROP_WRITABLE, OBJECT_PROP_READABLE (& OBJECT_PROP_READWRITE
> alias).
I quite like your suggestion. When going through the various clients
of these, I found that many of them do not accept a zero value on the
setter. I didn't include them on this series, but if we had an
OBJ_PROP_REJECT_ZERO_VAL (or similar), we could take them in the
generic setters as well. Let me have a stab at that on the v2.
>
>>
>> /**
>> * object_property_add_uint16_ptr:
>> * @obj: the object to add a property to
>> * @name: the name of the property
>> * @v: pointer to value
>> + * @readonly: don't add setter for value
>> * @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, bool readonly,
>> + Error **errp);
>> void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
>> - const uint16_t *v, Error **errp);
>> + const uint16_t *v, bool readonly,
>> + 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
>> + * @readonly: don't add setter for value
>> * @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, bool readonly,
>> + Error **errp);
>> void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
>> - const uint32_t *v, Error **errp);
>> + const uint32_t *v, bool readonly,
>> + 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
>> + * @readonly: don't add setter for value
>> * @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, bool readonly,
>> + Error **Errp);
>> void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
>> - const uint64_t *v, Error **Errp);
>> + const uint64_t *v, bool readonly,
>> + Error **Errp);
>>
>> /**
>> * object_property_add_alias:
>> diff --git a/qom/object.c b/qom/object.c
>> index d51b57fba1..775f702465 100644
>> --- a/qom/object.c
>> +++ b/qom/object.c
>> @@ -2326,6 +2326,26 @@ 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) {
>> + goto err;
>> + }
>> +
>> + *field = value;
>> +
>> + return;
>> +
>> +err:
>> + error_propagate(errp, local_err);
>> +}
>
>
> This is probably going to be refactored once the auto error series
> land. But in the meantime, it would be nice to remove the goto label.
I have just mimicked what other code does. Do you prefer the
error_propagate + return within the if()? I think I do.
F.
>
>> +
>> static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
>> void *opaque, Error **errp)
>> {
>> @@ -2333,6 +2353,26 @@ 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) {
>> + goto err;
>> + }
>> +
>> + *field = value;
>> +
>> + return;
>> +
>> +err:
>> + error_propagate(errp, local_err);
>> +}
>> +
>
> same
>
>> static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
>> void *opaque, Error **errp)
>> {
>> @@ -2340,6 +2380,26 @@ 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) {
>> + goto err;
>> + }
>> +
>> + *field = value;
>> +
>> + return;
>> +
>> +err:
>> + error_propagate(errp, local_err);
>> +}
>
> etc
>
>> +
>> static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
>> void *opaque, Error **errp)
>> {
>> @@ -2347,60 +2407,104 @@ 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 = opaque;
>> + uint64_t value;
>> + Error *local_err = NULL;
>> +
>> + visit_type_uint64(v, name, &value, &local_err);
>> + if (local_err) {
>> + goto err;
>> + }
>> +
>> + *field = value;
>> +
>> + return;
>> +
>> +err:
>> + error_propagate(errp, local_err);
>> +}
>> +
>> void object_property_add_uint8_ptr(Object *obj, const char *name,
>> - const uint8_t *v, Error **errp)
>> + const uint8_t *v, bool readonly,
>> + Error **errp)
>> {
>> - object_property_add(obj, name, "uint8", property_get_uint8_ptr,
>> - NULL, NULL, (void *)v, errp);
>> + object_property_add(obj, name, "uint8",
>> + property_get_uint8_ptr,
>> + readonly ? NULL : property_set_uint8_ptr,
>> + 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, bool readonly,
>> + Error **errp)
>> {
>> - object_class_property_add(klass, name, "uint8", property_get_uint8_ptr,
>> - NULL, NULL, (void *)v, errp);
>> + object_class_property_add(klass, name, "uint8",
>> + property_get_uint8_ptr,
>> + readonly ? NULL : property_set_uint8_ptr,
>> + 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, bool readonly,
>> + Error **errp)
>> {
>> - object_property_add(obj, name, "uint16", property_get_uint16_ptr,
>> - NULL, NULL, (void *)v, errp);
>> + object_property_add(obj, name, "uint16",
>> + property_get_uint16_ptr,
>> + readonly ? NULL : property_set_uint16_ptr,
>> + NULL, (void *)v, errp);
>> }
>>
>> void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
>> - const uint16_t *v, Error **errp)
>> + const uint16_t *v, bool readonly,
>> + Error **errp)
>> {
>> - object_class_property_add(klass, name, "uint16", property_get_uint16_ptr,
>> - NULL, NULL, (void *)v, errp);
>> + object_class_property_add(klass, name, "uint16",
>> + property_get_uint16_ptr,
>> + readonly ? NULL : property_set_uint16_ptr,
>> + 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, bool readonly,
>> + Error **errp)
>> {
>> - object_property_add(obj, name, "uint32", property_get_uint32_ptr,
>> - NULL, NULL, (void *)v, errp);
>> + object_property_add(obj, name, "uint32",
>> + property_get_uint32_ptr,
>> + readonly ? NULL : property_set_uint32_ptr,
>> + NULL, (void *)v, errp);
>> }
>>
>> void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
>> - const uint32_t *v, Error **errp)
>> + const uint32_t *v, bool readonly,
>> + Error **errp)
>> {
>> - object_class_property_add(klass, name, "uint32", property_get_uint32_ptr,
>> - NULL, NULL, (void *)v, errp);
>> + object_class_property_add(klass, name, "uint32",
>> + property_get_uint32_ptr,
>> + readonly ? NULL : property_set_uint32_ptr,
>> + 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, bool readonly,
>> + Error **errp)
>> {
>> - object_property_add(obj, name, "uint64", property_get_uint64_ptr,
>> - NULL, NULL, (void *)v, errp);
>> + object_property_add(obj, name, "uint64",
>> + property_get_uint64_ptr,
>> + property_set_uint64_ptr,
>> + NULL, (void *)v, errp);
>> }
>>
>> void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
>> - const uint64_t *v, Error **errp)
>> + const uint64_t *v, bool readonly,
>> + Error **errp)
>> {
>> - object_class_property_add(klass, name, "uint64", property_get_uint64_ptr,
>> - NULL, NULL, (void *)v, errp);
>> + object_class_property_add(klass, name, "uint64",
>> + property_get_uint64_ptr,
>> + readonly ? NULL : property_set_uint64_ptr,
>> + NULL, (void *)v, errp);
>> }
>>
>> typedef struct {
>> diff --git a/ui/console.c b/ui/console.c
>> index 82d1ddac9c..3375c33d71 100644
>> --- a/ui/console.c
>> +++ b/ui/console.c
>> @@ -1296,8 +1296,7 @@ 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, true, &error_abort);
>>
>> if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
>> (console_type == GRAPHIC_CONSOLE))) {
>> --
>> 2.20.1
>>
>
> looks good otherwise
>
>
> --
> Marc-André Lureau
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 1/4] qom/object: enable setter for uint types
2019-11-25 15:36 ` [PATCH 1/4] qom/object: enable setter for uint types Felipe Franciosi
@ 2019-11-26 8:40 ` Marc-André Lureau
2019-11-26 12:03 ` Felipe Franciosi
0 siblings, 1 reply; 13+ messages in thread
From: Marc-André Lureau @ 2019-11-26 8:40 UTC (permalink / raw)
To: Felipe Franciosi
Cc: qemu-devel, Eduardo Habkost, Stefan Hajnoczi, Markus Armbruster
Hi
On Mon, Nov 25, 2019 at 7:40 PM Felipe Franciosi <felipe@nutanix.com> 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.
>
> This enhances the uint-specific property helper APIs by adding a
> 'readonly' field and modifying all users of that API to set this
> parameter to true. If 'readonly' is false, though, the helper will add
> an automatic setter for the value.
>
> Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
> ---
> hw/acpi/ich9.c | 4 +-
> hw/acpi/pcihp.c | 6 +-
> hw/acpi/piix4.c | 12 ++--
> hw/isa/lpc_ich9.c | 4 +-
> hw/ppc/spapr_drc.c | 2 +-
> include/qom/object.h | 28 +++++---
> qom/object.c | 152 ++++++++++++++++++++++++++++++++++++-------
> ui/console.c | 3 +-
> 8 files changed, 163 insertions(+), 48 deletions(-)
>
> diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
> index 2034dd749e..94dc5147ce 100644
> --- a/hw/acpi/ich9.c
> +++ b/hw/acpi/ich9.c
> @@ -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, true, 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, true, 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..70bc1408e6 100644
> --- a/hw/acpi/pcihp.c
> +++ b/hw/acpi/pcihp.c
> @@ -80,7 +80,7 @@ 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, true, &error_abort);
> }
>
> return bsel_alloc;
> @@ -373,9 +373,9 @@ 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);
> + true, &error_abort);
> object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_LEN_PROP, &s->io_len,
> - &error_abort);
> + true, &error_abort);
> }
>
> const VMStateDescription vmstate_acpi_pcihp_pci_status = {
> diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
> index 93aec2dd2c..032ba11e62 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 = 9;
>
> object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
> - &acpi_enable_cmd, NULL);
> + &acpi_enable_cmd, true, NULL);
> object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
> - &acpi_disable_cmd, NULL);
> + &acpi_disable_cmd, true, NULL);
> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
> - &gpe0_blk, NULL);
> + &gpe0_blk, true, NULL);
> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
> - &gpe0_blk_len, NULL);
> + &gpe0_blk_len, true, NULL);
> object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
> - &sci_int, NULL);
> + &sci_int, true, NULL);
> object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
> - &s->io_base, NULL);
> + &s->io_base, true, 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..5555ce3342 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, true, NULL);
> object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE_CMD,
> - &acpi_disable_cmd, NULL);
> + &acpi_disable_cmd, true, NULL);
>
> 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..76f389f56a 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 = 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, true, 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..8fc28ed0c9 100644
> --- a/include/qom/object.h
> +++ b/include/qom/object.h
> @@ -1584,60 +1584,72 @@ void object_class_property_add_tm(ObjectClass *klass, const char *name,
> * @obj: the object to add a property to
> * @name: the name of the property
> * @v: pointer to value
> + * @readonly: don't add setter for value
> * @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, bool readonly,
> + Error **errp);
> void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
> - const uint8_t *v, Error **errp);
> + const uint8_t *v, bool readonly,
> + Error **errp);
It would help readability and extensibility if we had an enum/bitflag:
OBJECT_PROP_WRITABLE, OBJECT_PROP_READABLE (& OBJECT_PROP_READWRITE
alias).
>
> /**
> * object_property_add_uint16_ptr:
> * @obj: the object to add a property to
> * @name: the name of the property
> * @v: pointer to value
> + * @readonly: don't add setter for value
> * @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, bool readonly,
> + Error **errp);
> void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
> - const uint16_t *v, Error **errp);
> + const uint16_t *v, bool readonly,
> + 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
> + * @readonly: don't add setter for value
> * @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, bool readonly,
> + Error **errp);
> void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
> - const uint32_t *v, Error **errp);
> + const uint32_t *v, bool readonly,
> + 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
> + * @readonly: don't add setter for value
> * @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, bool readonly,
> + Error **Errp);
> void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
> - const uint64_t *v, Error **Errp);
> + const uint64_t *v, bool readonly,
> + Error **Errp);
>
> /**
> * object_property_add_alias:
> diff --git a/qom/object.c b/qom/object.c
> index d51b57fba1..775f702465 100644
> --- a/qom/object.c
> +++ b/qom/object.c
> @@ -2326,6 +2326,26 @@ 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) {
> + goto err;
> + }
> +
> + *field = value;
> +
> + return;
> +
> +err:
> + error_propagate(errp, local_err);
> +}
This is probably going to be refactored once the auto error series
land. But in the meantime, it would be nice to remove the goto label.
> +
> static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
> void *opaque, Error **errp)
> {
> @@ -2333,6 +2353,26 @@ 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) {
> + goto err;
> + }
> +
> + *field = value;
> +
> + return;
> +
> +err:
> + error_propagate(errp, local_err);
> +}
> +
same
> static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
> void *opaque, Error **errp)
> {
> @@ -2340,6 +2380,26 @@ 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) {
> + goto err;
> + }
> +
> + *field = value;
> +
> + return;
> +
> +err:
> + error_propagate(errp, local_err);
> +}
etc
> +
> static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
> void *opaque, Error **errp)
> {
> @@ -2347,60 +2407,104 @@ 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 = opaque;
> + uint64_t value;
> + Error *local_err = NULL;
> +
> + visit_type_uint64(v, name, &value, &local_err);
> + if (local_err) {
> + goto err;
> + }
> +
> + *field = value;
> +
> + return;
> +
> +err:
> + error_propagate(errp, local_err);
> +}
> +
> void object_property_add_uint8_ptr(Object *obj, const char *name,
> - const uint8_t *v, Error **errp)
> + const uint8_t *v, bool readonly,
> + Error **errp)
> {
> - object_property_add(obj, name, "uint8", property_get_uint8_ptr,
> - NULL, NULL, (void *)v, errp);
> + object_property_add(obj, name, "uint8",
> + property_get_uint8_ptr,
> + readonly ? NULL : property_set_uint8_ptr,
> + 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, bool readonly,
> + Error **errp)
> {
> - object_class_property_add(klass, name, "uint8", property_get_uint8_ptr,
> - NULL, NULL, (void *)v, errp);
> + object_class_property_add(klass, name, "uint8",
> + property_get_uint8_ptr,
> + readonly ? NULL : property_set_uint8_ptr,
> + 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, bool readonly,
> + Error **errp)
> {
> - object_property_add(obj, name, "uint16", property_get_uint16_ptr,
> - NULL, NULL, (void *)v, errp);
> + object_property_add(obj, name, "uint16",
> + property_get_uint16_ptr,
> + readonly ? NULL : property_set_uint16_ptr,
> + NULL, (void *)v, errp);
> }
>
> void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
> - const uint16_t *v, Error **errp)
> + const uint16_t *v, bool readonly,
> + Error **errp)
> {
> - object_class_property_add(klass, name, "uint16", property_get_uint16_ptr,
> - NULL, NULL, (void *)v, errp);
> + object_class_property_add(klass, name, "uint16",
> + property_get_uint16_ptr,
> + readonly ? NULL : property_set_uint16_ptr,
> + 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, bool readonly,
> + Error **errp)
> {
> - object_property_add(obj, name, "uint32", property_get_uint32_ptr,
> - NULL, NULL, (void *)v, errp);
> + object_property_add(obj, name, "uint32",
> + property_get_uint32_ptr,
> + readonly ? NULL : property_set_uint32_ptr,
> + NULL, (void *)v, errp);
> }
>
> void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
> - const uint32_t *v, Error **errp)
> + const uint32_t *v, bool readonly,
> + Error **errp)
> {
> - object_class_property_add(klass, name, "uint32", property_get_uint32_ptr,
> - NULL, NULL, (void *)v, errp);
> + object_class_property_add(klass, name, "uint32",
> + property_get_uint32_ptr,
> + readonly ? NULL : property_set_uint32_ptr,
> + 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, bool readonly,
> + Error **errp)
> {
> - object_property_add(obj, name, "uint64", property_get_uint64_ptr,
> - NULL, NULL, (void *)v, errp);
> + object_property_add(obj, name, "uint64",
> + property_get_uint64_ptr,
> + property_set_uint64_ptr,
> + NULL, (void *)v, errp);
> }
>
> void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
> - const uint64_t *v, Error **errp)
> + const uint64_t *v, bool readonly,
> + Error **errp)
> {
> - object_class_property_add(klass, name, "uint64", property_get_uint64_ptr,
> - NULL, NULL, (void *)v, errp);
> + object_class_property_add(klass, name, "uint64",
> + property_get_uint64_ptr,
> + readonly ? NULL : property_set_uint64_ptr,
> + NULL, (void *)v, errp);
> }
>
> typedef struct {
> diff --git a/ui/console.c b/ui/console.c
> index 82d1ddac9c..3375c33d71 100644
> --- a/ui/console.c
> +++ b/ui/console.c
> @@ -1296,8 +1296,7 @@ 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, true, &error_abort);
>
> if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
> (console_type == GRAPHIC_CONSOLE))) {
> --
> 2.20.1
>
looks good otherwise
--
Marc-André Lureau
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 1/4] qom/object: enable setter for uint types
2019-11-25 15:36 Felipe Franciosi
@ 2019-11-25 15:36 ` Felipe Franciosi
2019-11-26 8:40 ` Marc-André Lureau
0 siblings, 1 reply; 13+ messages in thread
From: Felipe Franciosi @ 2019-11-25 15:36 UTC (permalink / raw)
To: Eduardo Habkost, Markus Armbruster, Stefan Hajnoczi
Cc: qemu-devel, Felipe Franciosi
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.
This enhances the uint-specific property helper APIs by adding a
'readonly' field and modifying all users of that API to set this
parameter to true. If 'readonly' is false, though, the helper will add
an automatic setter for the value.
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
---
hw/acpi/ich9.c | 4 +-
hw/acpi/pcihp.c | 6 +-
hw/acpi/piix4.c | 12 ++--
hw/isa/lpc_ich9.c | 4 +-
hw/ppc/spapr_drc.c | 2 +-
include/qom/object.h | 28 +++++---
qom/object.c | 152 ++++++++++++++++++++++++++++++++++++-------
ui/console.c | 3 +-
8 files changed, 163 insertions(+), 48 deletions(-)
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 2034dd749e..94dc5147ce 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -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, true, 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, true, 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..70bc1408e6 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -80,7 +80,7 @@ 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, true, &error_abort);
}
return bsel_alloc;
@@ -373,9 +373,9 @@ 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);
+ true, &error_abort);
object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_LEN_PROP, &s->io_len,
- &error_abort);
+ true, &error_abort);
}
const VMStateDescription vmstate_acpi_pcihp_pci_status = {
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 93aec2dd2c..032ba11e62 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 = 9;
object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
- &acpi_enable_cmd, NULL);
+ &acpi_enable_cmd, true, NULL);
object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
- &acpi_disable_cmd, NULL);
+ &acpi_disable_cmd, true, NULL);
object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
- &gpe0_blk, NULL);
+ &gpe0_blk, true, NULL);
object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
- &gpe0_blk_len, NULL);
+ &gpe0_blk_len, true, NULL);
object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
- &sci_int, NULL);
+ &sci_int, true, NULL);
object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
- &s->io_base, NULL);
+ &s->io_base, true, 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..5555ce3342 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, true, NULL);
object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_DISABLE_CMD,
- &acpi_disable_cmd, NULL);
+ &acpi_disable_cmd, true, NULL);
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..76f389f56a 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 = 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, true, 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..8fc28ed0c9 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -1584,60 +1584,72 @@ void object_class_property_add_tm(ObjectClass *klass, const char *name,
* @obj: the object to add a property to
* @name: the name of the property
* @v: pointer to value
+ * @readonly: don't add setter for value
* @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, bool readonly,
+ Error **errp);
void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
- const uint8_t *v, Error **errp);
+ const uint8_t *v, bool readonly,
+ 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
+ * @readonly: don't add setter for value
* @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, bool readonly,
+ Error **errp);
void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
- const uint16_t *v, Error **errp);
+ const uint16_t *v, bool readonly,
+ 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
+ * @readonly: don't add setter for value
* @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, bool readonly,
+ Error **errp);
void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
- const uint32_t *v, Error **errp);
+ const uint32_t *v, bool readonly,
+ 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
+ * @readonly: don't add setter for value
* @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, bool readonly,
+ Error **Errp);
void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
- const uint64_t *v, Error **Errp);
+ const uint64_t *v, bool readonly,
+ Error **Errp);
/**
* object_property_add_alias:
diff --git a/qom/object.c b/qom/object.c
index d51b57fba1..775f702465 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -2326,6 +2326,26 @@ 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) {
+ goto err;
+ }
+
+ *field = value;
+
+ return;
+
+err:
+ error_propagate(errp, local_err);
+}
+
static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@@ -2333,6 +2353,26 @@ 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) {
+ goto err;
+ }
+
+ *field = value;
+
+ return;
+
+err:
+ error_propagate(errp, local_err);
+}
+
static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@@ -2340,6 +2380,26 @@ 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) {
+ goto err;
+ }
+
+ *field = value;
+
+ return;
+
+err:
+ error_propagate(errp, local_err);
+}
+
static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@@ -2347,60 +2407,104 @@ 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 = opaque;
+ uint64_t value;
+ Error *local_err = NULL;
+
+ visit_type_uint64(v, name, &value, &local_err);
+ if (local_err) {
+ goto err;
+ }
+
+ *field = value;
+
+ return;
+
+err:
+ error_propagate(errp, local_err);
+}
+
void object_property_add_uint8_ptr(Object *obj, const char *name,
- const uint8_t *v, Error **errp)
+ const uint8_t *v, bool readonly,
+ Error **errp)
{
- object_property_add(obj, name, "uint8", property_get_uint8_ptr,
- NULL, NULL, (void *)v, errp);
+ object_property_add(obj, name, "uint8",
+ property_get_uint8_ptr,
+ readonly ? NULL : property_set_uint8_ptr,
+ 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, bool readonly,
+ Error **errp)
{
- object_class_property_add(klass, name, "uint8", property_get_uint8_ptr,
- NULL, NULL, (void *)v, errp);
+ object_class_property_add(klass, name, "uint8",
+ property_get_uint8_ptr,
+ readonly ? NULL : property_set_uint8_ptr,
+ 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, bool readonly,
+ Error **errp)
{
- object_property_add(obj, name, "uint16", property_get_uint16_ptr,
- NULL, NULL, (void *)v, errp);
+ object_property_add(obj, name, "uint16",
+ property_get_uint16_ptr,
+ readonly ? NULL : property_set_uint16_ptr,
+ NULL, (void *)v, errp);
}
void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
- const uint16_t *v, Error **errp)
+ const uint16_t *v, bool readonly,
+ Error **errp)
{
- object_class_property_add(klass, name, "uint16", property_get_uint16_ptr,
- NULL, NULL, (void *)v, errp);
+ object_class_property_add(klass, name, "uint16",
+ property_get_uint16_ptr,
+ readonly ? NULL : property_set_uint16_ptr,
+ 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, bool readonly,
+ Error **errp)
{
- object_property_add(obj, name, "uint32", property_get_uint32_ptr,
- NULL, NULL, (void *)v, errp);
+ object_property_add(obj, name, "uint32",
+ property_get_uint32_ptr,
+ readonly ? NULL : property_set_uint32_ptr,
+ NULL, (void *)v, errp);
}
void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
- const uint32_t *v, Error **errp)
+ const uint32_t *v, bool readonly,
+ Error **errp)
{
- object_class_property_add(klass, name, "uint32", property_get_uint32_ptr,
- NULL, NULL, (void *)v, errp);
+ object_class_property_add(klass, name, "uint32",
+ property_get_uint32_ptr,
+ readonly ? NULL : property_set_uint32_ptr,
+ 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, bool readonly,
+ Error **errp)
{
- object_property_add(obj, name, "uint64", property_get_uint64_ptr,
- NULL, NULL, (void *)v, errp);
+ object_property_add(obj, name, "uint64",
+ property_get_uint64_ptr,
+ property_set_uint64_ptr,
+ NULL, (void *)v, errp);
}
void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
- const uint64_t *v, Error **errp)
+ const uint64_t *v, bool readonly,
+ Error **errp)
{
- object_class_property_add(klass, name, "uint64", property_get_uint64_ptr,
- NULL, NULL, (void *)v, errp);
+ object_class_property_add(klass, name, "uint64",
+ property_get_uint64_ptr,
+ readonly ? NULL : property_set_uint64_ptr,
+ NULL, (void *)v, errp);
}
typedef struct {
diff --git a/ui/console.c b/ui/console.c
index 82d1ddac9c..3375c33d71 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -1296,8 +1296,7 @@ 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, true, &error_abort);
if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
(console_type == GRAPHIC_CONSOLE))) {
--
2.20.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
end of thread, other threads:[~2020-02-03 17:04 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-03 15:54 [PATCH 0/4] Improve default object property_add uint helpers Felipe Franciosi
2020-02-03 15:54 ` [PATCH 1/4] qom/object: enable setter for uint types Felipe Franciosi
2020-02-03 15:54 ` [PATCH 2/4] ich9: fix getter type for sci_int property Felipe Franciosi
2020-02-03 15:54 ` [PATCH 3/4] ich9: Simplify ich9_lpc_initfn Felipe Franciosi
2020-02-03 15:54 ` [PATCH 4/4] qom/object: Use common get/set uint helpers Felipe Franciosi
2020-02-03 16:08 ` [PATCH 0/4] Improve default object property_add " Felipe Franciosi
2020-02-03 16:10 ` Marc-André Lureau
2020-02-03 17:03 ` Felipe Franciosi
-- strict thread matches above, loose matches on Subject: below --
2019-11-25 15:36 Felipe Franciosi
2019-11-25 15:36 ` [PATCH 1/4] qom/object: enable setter for uint types Felipe Franciosi
2019-11-26 8:40 ` Marc-André Lureau
2019-11-26 12:03 ` Felipe Franciosi
2019-11-26 12:18 ` Marc-André Lureau
2019-11-26 13:41 ` Felipe Franciosi
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