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* [PATCH v4 0/4] Improve default object property_add uint helpers
@ 2019-12-19 18:02 Felipe Franciosi
  2019-12-19 18:02 ` [PATCH v4 1/4] qom/object: enable setter for uint types Felipe Franciosi
                   ` (6 more replies)
  0 siblings, 7 replies; 14+ messages in thread
From: Felipe Franciosi @ 2019-12-19 18:02 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 3 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 |  44 +++++++--
 memory.c             |  15 +--
 qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
 target/arm/cpu.c     |  22 +----
 target/i386/sev.c    | 106 ++-------------------
 ui/console.c         |   4 +-
 14 files changed, 282 insertions(+), 318 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

^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH v4 1/4] qom/object: enable setter for uint types
  2019-12-19 18:02 [PATCH v4 0/4] Improve default object property_add uint helpers Felipe Franciosi
@ 2019-12-19 18:02 ` Felipe Franciosi
  2019-12-19 18:02 ` [PATCH v4 2/4] ich9: fix getter type for sci_int property Felipe Franciosi
                   ` (5 subsequent siblings)
  6 siblings, 0 replies; 14+ messages in thread
From: Felipe Franciosi @ 2019-12-19 18:02 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 |  44 +++++++--
 qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
 ui/console.c         |   4 +-
 8 files changed, 246 insertions(+), 48 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 93aec2dd2c..fe05a3ce46 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 17c292e306..99517c3946 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -645,9 +645,9 @@ static void ich9_lpc_add_properties(ICH9LPCState *lpc)
                         ich9_lpc_get_sci_int,
                         NULL, NULL, NULL, NULL);
     object_property_add_uint8_ptr(OBJECT(lpc), ACPI_PM_PROP_ACPI_ENABLE_CMD,
-                                  &acpi_enable_cmd, NULL);
+                                  &acpi_enable_cmd, OBJ_PROP_FLAG_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 62f1a42592..bbd4bf35c7 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 128d00c77f..d2bfd76741 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -1579,65 +1579,93 @@ void object_class_property_add_tm(ObjectClass *klass, const char *name,
                                   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);
 void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
-                                         const uint8_t *v, Error **errp);
+                                         const uint8_t *v,
+                                         ObjectPropertyFlags flags,
+                                         Error **errp);
 
 /**
  * object_property_add_uint16_ptr:
  * @obj: the object to add a property to
  * @name: the name of the property
  * @v: pointer to value
+ * @flags: bitwise-or'd ObjectPropertyFlags
  * @errp: if an error occurs, a pointer to an area to store the error
  *
  * Add an integer property in memory.  This function will add a
  * property of type 'uint16'.
  */
 void object_property_add_uint16_ptr(Object *obj, const char *name,
-                                    const uint16_t *v, Error **errp);
+                                    const uint16_t *v,
+                                    ObjectPropertyFlags flags,
+                                    Error **errp);
 void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
-                                          const uint16_t *v, Error **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);
 void 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);
 void 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 d51b57fba1..77c2682296 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -2326,6 +2326,22 @@ 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)
 {
@@ -2333,6 +2349,22 @@ 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)
 {
@@ -2340,6 +2372,22 @@ 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)
 {
@@ -2347,60 +2395,180 @@ static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
     visit_type_uint64(v, name, &value, errp);
 }
 
+static void property_set_uint64_ptr(Object *obj, Visitor *v, const char *name,
+                                    void *opaque, Error **errp)
+{
+    uint64_t *field = 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);
 }
 
 void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
-                                         const uint8_t *v, Error **errp)
+                                         const uint8_t *v,
+                                         ObjectPropertyFlags flags,
+                                         Error **errp)
 {
-    object_class_property_add(klass, name, "uint8", property_get_uint8_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_class_property_add(klass, name, "uint8",
+                              getter, setter, NULL, (void *)v, errp);
 }
 
 void object_property_add_uint16_ptr(Object *obj, const char *name,
-                                    const uint16_t *v, Error **errp)
+                                    const uint16_t *v,
+                                    ObjectPropertyFlags flags,
+                                    Error **errp)
 {
-    object_property_add(obj, name, "uint16", property_get_uint16_ptr,
-                        NULL, NULL, (void *)v, errp);
+    ObjectPropertyAccessor *getter = 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);
 }
 
 void 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_class_property_add(klass, 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_class_property_add(klass, name, "uint16",
+                              getter, setter, NULL, (void *)v, errp);
 }
 
 void object_property_add_uint32_ptr(Object *obj, const char *name,
-                                    const uint32_t *v, Error **errp)
+                                    const uint32_t *v,
+                                    ObjectPropertyFlags flags,
+                                    Error **errp)
 {
-    object_property_add(obj, name, "uint32", property_get_uint32_ptr,
-                        NULL, NULL, (void *)v, errp);
+    ObjectPropertyAccessor *getter = 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);
 }
 
 void 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_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);
 }
 
 void 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_class_property_add(klass, 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_class_property_add(klass, name, "uint64",
+                              getter, setter, NULL, (void *)v, errp);
 }
 
 typedef struct {
diff --git a/ui/console.c b/ui/console.c
index 82d1ddac9c..bcbe65e696 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -1296,8 +1296,8 @@ 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] 14+ messages in thread

* [PATCH v4 2/4] ich9: fix getter type for sci_int property
  2019-12-19 18:02 [PATCH v4 0/4] Improve default object property_add uint helpers Felipe Franciosi
  2019-12-19 18:02 ` [PATCH v4 1/4] qom/object: enable setter for uint types Felipe Franciosi
@ 2019-12-19 18:02 ` Felipe Franciosi
  2019-12-19 18:02 ` [PATCH v4 3/4] ich9: Simplify ich9_lpc_initfn Felipe Franciosi
                   ` (4 subsequent siblings)
  6 siblings, 0 replies; 14+ messages in thread
From: Felipe Franciosi @ 2019-12-19 18:02 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 99517c3946..9f4e00dddd 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -631,9 +631,7 @@ 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)
@@ -641,7 +639,7 @@ 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] 14+ messages in thread

* [PATCH v4 3/4] ich9: Simplify ich9_lpc_initfn
  2019-12-19 18:02 [PATCH v4 0/4] Improve default object property_add uint helpers Felipe Franciosi
  2019-12-19 18:02 ` [PATCH v4 1/4] qom/object: enable setter for uint types Felipe Franciosi
  2019-12-19 18:02 ` [PATCH v4 2/4] ich9: fix getter type for sci_int property Felipe Franciosi
@ 2019-12-19 18:02 ` Felipe Franciosi
  2019-12-20  1:11   ` Philippe Mathieu-Daudé
  2019-12-19 18:02 ` [PATCH v4 4/4] qom/object: Use common get/set uint helpers Felipe Franciosi
                   ` (3 subsequent siblings)
  6 siblings, 1 reply; 14+ messages in thread
From: Felipe Franciosi @ 2019-12-19 18:02 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 9f4e00dddd..c40bb3c420 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -634,12 +634,14 @@ 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,
@@ -647,14 +649,7 @@ 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] 14+ messages in thread

* [PATCH v4 4/4] qom/object: Use common get/set uint helpers
  2019-12-19 18:02 [PATCH v4 0/4] Improve default object property_add uint helpers Felipe Franciosi
                   ` (2 preceding siblings ...)
  2019-12-19 18:02 ` [PATCH v4 3/4] ich9: Simplify ich9_lpc_initfn Felipe Franciosi
@ 2019-12-19 18:02 ` Felipe Franciosi
  2019-12-19 23:56 ` [PATCH v4 0/4] Improve default object property_add " Alexey Kardashevskiy
                   ` (2 subsequent siblings)
  6 siblings, 0 replies; 14+ messages in thread
From: Felipe Franciosi @ 2019-12-19 18:02 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 c40bb3c420..b99a613954 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -627,13 +627,6 @@ 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);
@@ -641,9 +634,8 @@ 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 158d270b9f..f384ab95c6 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 f11422fc41..3adbc8e247 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -3149,18 +3149,6 @@ 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);
@@ -3258,8 +3246,10 @@ 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 0228cad38d..c02b0a4576 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 dd51adac05..575eafd2bb 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1039,22 +1039,6 @@ 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);
-}
-
 void arm_cpu_post_init(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
@@ -1165,9 +1149,9 @@ 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] 14+ messages in thread

* Re: [PATCH v4 0/4] Improve default object property_add uint helpers
  2019-12-19 18:02 [PATCH v4 0/4] Improve default object property_add uint helpers Felipe Franciosi
                   ` (3 preceding siblings ...)
  2019-12-19 18:02 ` [PATCH v4 4/4] qom/object: Use common get/set uint helpers Felipe Franciosi
@ 2019-12-19 23:56 ` Alexey Kardashevskiy
  2019-12-20 10:46   ` Felipe Franciosi
  2019-12-20 10:12 ` Stefan Hajnoczi
  2019-12-20 15:15 ` Marc-André Lureau
  6 siblings, 1 reply; 14+ messages in thread
From: Alexey Kardashevskiy @ 2019-12-19 23:56 UTC (permalink / raw)
  To: Felipe Franciosi, Marc-Andre Lureau, Phillipe Mathieu-Daude,
	Stefan Hajnoczi, Eduardo Habkost, Markus Armbruster
  Cc: qemu-devel



On 20/12/2019 05:02, Felipe Franciosi 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 3 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.

A weird thing happens - when I apply patches from my mailer (thunderbird
-> open the source -> cut-n-paste to "git am") - they fail to apply. And
the mails themselves look suspicious - too many "MS-Exchange" and
"X-Proofpoint" :)

A bundle from
https://patchwork.ozlabs.org/project/qemu-devel/list/?series=149673
applies fine though.


Anyway, this works on powerpc. Thanks,



> 
> 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 |  44 +++++++--
>  memory.c             |  15 +--
>  qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
>  target/arm/cpu.c     |  22 +----
>  target/i386/sev.c    | 106 ++-------------------
>  ui/console.c         |   4 +-
>  14 files changed, 282 insertions(+), 318 deletions(-)
> 

-- 
Alexey


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v4 3/4] ich9: Simplify ich9_lpc_initfn
  2019-12-19 18:02 ` [PATCH v4 3/4] ich9: Simplify ich9_lpc_initfn Felipe Franciosi
@ 2019-12-20  1:11   ` Philippe Mathieu-Daudé
  0 siblings, 0 replies; 14+ messages in thread
From: Philippe Mathieu-Daudé @ 2019-12-20  1:11 UTC (permalink / raw)
  To: Felipe Franciosi, Marc-Andre Lureau, Stefan Hajnoczi,
	Eduardo Habkost, Markus Armbruster, Alexey Kardashevskiy
  Cc: qemu-devel

On 12/19/19 7:02 PM, Felipe Franciosi wrote:
> 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 9f4e00dddd..c40bb3c420 100644
> --- a/hw/isa/lpc_ich9.c
> +++ b/hw/isa/lpc_ich9.c
> @@ -634,12 +634,14 @@ 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,
> @@ -647,14 +649,7 @@ 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)
> 

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>



^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v4 0/4] Improve default object property_add uint helpers
  2019-12-19 18:02 [PATCH v4 0/4] Improve default object property_add uint helpers Felipe Franciosi
                   ` (4 preceding siblings ...)
  2019-12-19 23:56 ` [PATCH v4 0/4] Improve default object property_add " Alexey Kardashevskiy
@ 2019-12-20 10:12 ` Stefan Hajnoczi
  2019-12-20 15:15 ` Marc-André Lureau
  6 siblings, 0 replies; 14+ messages in thread
From: Stefan Hajnoczi @ 2019-12-20 10:12 UTC (permalink / raw)
  To: Felipe Franciosi
  Cc: Eduardo Habkost, Alexey Kardashevskiy, Markus Armbruster,
	qemu-devel, Marc-Andre Lureau, Stefan Hajnoczi,
	Phillipe Mathieu-Daude

[-- Attachment #1: Type: text/plain, Size: 2549 bytes --]

On Thu, Dec 19, 2019 at 06:02:28PM +0000, Felipe Franciosi 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 3 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 |  44 +++++++--
>  memory.c             |  15 +--
>  qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
>  target/arm/cpu.c     |  22 +----
>  target/i386/sev.c    | 106 ++-------------------
>  ui/console.c         |   4 +-
>  14 files changed, 282 insertions(+), 318 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

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v4 0/4] Improve default object property_add uint helpers
  2019-12-19 23:56 ` [PATCH v4 0/4] Improve default object property_add " Alexey Kardashevskiy
@ 2019-12-20 10:46   ` Felipe Franciosi
  0 siblings, 0 replies; 14+ messages in thread
From: Felipe Franciosi @ 2019-12-20 10:46 UTC (permalink / raw)
  To: Alexey Kardashevskiy
  Cc: Eduardo Habkost, qemu-devel, Markus Armbruster,
	Marc-Andre Lureau, Stefan Hajnoczi, Phillipe Mathieu-Daude

Hi,

> On Dec 19, 2019, at 11:56 PM, Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
> 
> 
> 
> On 20/12/2019 05:02, Felipe Franciosi 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 3 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.
> 
> A weird thing happens - when I apply patches from my mailer (thunderbird
> -> open the source -> cut-n-paste to "git am") - they fail to apply. And
> the mails themselves look suspicious - too many "MS-Exchange" and
> "X-Proofpoint" :)

I apologise for that... as you can see from below, our company's
"anti-spam" / "anti-virus" mail servers tend to mangle incoming
e-mails in ways that make it challenging to work with MLs:

> 
> A bundle from
> https://urldefense.proofpoint.com/v2/url?u=https-3A__patchwork.ozlabs.org_project_qemu-2Ddevel_list_-3Fseries-3D149673&d=DwICaQ&c=s883GpUCOChKOHiocYtGcg&r=CCrJKVC5zGot8PrnI-iYe00MdX4pgdQfMRigp14Ptmk&m=TxZxCvPIyfiAMkXeqOwUO_oYhAWFHAG66jA3SeEldzU&s=vMLzvHMGCJ9VeW3wSKvJVPrthKmVoud-ACf5eh6w2Rg&e= 
> applies fine though.

Now I know why both you and Marc-Andre had problems applying my
patches: apparently our servers also mangle with outgoing e-mails too.

I heard that pulling the patches from mbox work, but I'll make sure to
post patches on Github in the future to make things easier for others.
I've already asked them to look into this and whitelist e-mails on
various criteria.

Thanks for your help in making sure these patches work for you despite
the extra hurdles!

F.

> 
> 
> Anyway, this works on powerpc. Thanks,
> 
> 
> 
>> 
>> 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 |  44 +++++++--
>> memory.c             |  15 +--
>> qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
>> target/arm/cpu.c     |  22 +----
>> target/i386/sev.c    | 106 ++-------------------
>> ui/console.c         |   4 +-
>> 14 files changed, 282 insertions(+), 318 deletions(-)
>> 
> 
> -- 
> Alexey



^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v4 0/4] Improve default object property_add uint helpers
  2019-12-19 18:02 [PATCH v4 0/4] Improve default object property_add uint helpers Felipe Franciosi
                   ` (5 preceding siblings ...)
  2019-12-20 10:12 ` Stefan Hajnoczi
@ 2019-12-20 15:15 ` Marc-André Lureau
  2019-12-20 15:55   ` Felipe Franciosi
  2020-01-24 10:49   ` Felipe Franciosi
  6 siblings, 2 replies; 14+ messages in thread
From: Marc-André Lureau @ 2019-12-20 15:15 UTC (permalink / raw)
  To: Felipe Franciosi
  Cc: Eduardo Habkost, Alexey Kardashevskiy, qemu-devel,
	Markus Armbruster, Stefan Hajnoczi, Paolo Bonzini,
	Phillipe Mathieu-Daude

Hi

On Thu, Dec 19, 2019 at 10:02 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 3 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 |  44 +++++++--
>  memory.c             |  15 +--
>  qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
>  target/arm/cpu.c     |  22 +----
>  target/i386/sev.c    | 106 ++-------------------
>  ui/console.c         |   4 +-
>  14 files changed, 282 insertions(+), 318 deletions(-)

It conflicts with some recent changes, so you'll need to send a new
version, but that one looks good to me:
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>

Paolo, is it going through your queue?

>
> --
> 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



-- 
Marc-André Lureau


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v4 0/4] Improve default object property_add uint helpers
  2019-12-20 15:15 ` Marc-André Lureau
@ 2019-12-20 15:55   ` Felipe Franciosi
  2020-01-24 10:49   ` Felipe Franciosi
  1 sibling, 0 replies; 14+ messages in thread
From: Felipe Franciosi @ 2019-12-20 15:55 UTC (permalink / raw)
  To: Marc-André Lureau
  Cc: Eduardo Habkost, Alexey Kardashevskiy, qemu-devel,
	Markus Armbruster, Stefan Hajnoczi, Paolo Bonzini,
	Phillipe Mathieu-Daude



> On Dec 20, 2019, at 3:15 PM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
> 
> Hi
> 
> On Thu, Dec 19, 2019 at 10:02 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 3 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 |  44 +++++++--
>> memory.c             |  15 +--
>> qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
>> target/arm/cpu.c     |  22 +----
>> target/i386/sev.c    | 106 ++-------------------
>> ui/console.c         |   4 +-
>> 14 files changed, 282 insertions(+), 318 deletions(-)
> 
> It conflicts with some recent changes, so you'll need to send a new
> version, but that one looks good to me:
> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>

Ah, no worries.

I did do a rebase on top of master before sending out v4, though.
Which conflict did you see? I can rebase later or maybe whomever is
pulling can fix the merge if it's straightforward?

F.


> 
> Paolo, is it going through your queue?
> 
>> 
>> --
>> 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
> 
> 
> 
> -- 
> Marc-André Lureau


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v4 0/4] Improve default object property_add uint helpers
  2019-12-20 15:15 ` Marc-André Lureau
  2019-12-20 15:55   ` Felipe Franciosi
@ 2020-01-24 10:49   ` Felipe Franciosi
  2020-01-28 15:54     ` Marc-André Lureau
  1 sibling, 1 reply; 14+ messages in thread
From: Felipe Franciosi @ 2020-01-24 10:49 UTC (permalink / raw)
  To: Marc-André Lureau, Paolo Bonzini
  Cc: Eduardo Habkost, Alexey Kardashevskiy, qemu-devel,
	Markus Armbruster, Stefan Hajnoczi, Phillipe Mathieu-Daude

Hi Marc-Andre and Paolo,

> On Dec 20, 2019, at 3:15 PM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
> 
> Hi
> 
> On Thu, Dec 19, 2019 at 10:02 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 3 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 |  44 +++++++--
>> memory.c             |  15 +--
>> qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
>> target/arm/cpu.c     |  22 +----
>> target/i386/sev.c    | 106 ++-------------------
>> ui/console.c         |   4 +-
>> 14 files changed, 282 insertions(+), 318 deletions(-)
> 
> It conflicts with some recent changes, so you'll need to send a new
> version, but that one looks good to me:
> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> 
> Paolo, is it going through your queue?

I didn't see any response after this. Did the series get lost?

Cheers,
Felipe

> 
>> 
>> --
>> 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
> 
> 
> 
> -- 
> Marc-André Lureau


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v4 0/4] Improve default object property_add uint helpers
  2020-01-24 10:49   ` Felipe Franciosi
@ 2020-01-28 15:54     ` Marc-André Lureau
  2020-02-03 15:55       ` Felipe Franciosi
  0 siblings, 1 reply; 14+ messages in thread
From: Marc-André Lureau @ 2020-01-28 15:54 UTC (permalink / raw)
  To: Felipe Franciosi
  Cc: Eduardo Habkost, Alexey Kardashevskiy, Markus Armbruster,
	qemu-devel, Stefan Hajnoczi, Paolo Bonzini,
	Phillipe Mathieu-Daude

Hi Felipe,

On Fri, Jan 24, 2020 at 11:49 AM Felipe Franciosi <felipe@nutanix.com> wrote:
>
> Hi Marc-Andre and Paolo,
>
> > On Dec 20, 2019, at 3:15 PM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
> >
> > Hi
> >
> > On Thu, Dec 19, 2019 at 10:02 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 3 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 |  44 +++++++--
> >> memory.c             |  15 +--
> >> qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
> >> target/arm/cpu.c     |  22 +----
> >> target/i386/sev.c    | 106 ++-------------------
> >> ui/console.c         |   4 +-
> >> 14 files changed, 282 insertions(+), 318 deletions(-)
> >
> > It conflicts with some recent changes, so you'll need to send a new
> > version, but that one looks good to me:
> > Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> >
> > Paolo, is it going through your queue?
>
> I didn't see any response after this. Did the series get lost?

Can you send a rebased version?

thanks



-- 
Marc-André Lureau


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v4 0/4] Improve default object property_add uint helpers
  2020-01-28 15:54     ` Marc-André Lureau
@ 2020-02-03 15:55       ` Felipe Franciosi
  0 siblings, 0 replies; 14+ messages in thread
From: Felipe Franciosi @ 2020-02-03 15:55 UTC (permalink / raw)
  To: Marc-André Lureau
  Cc: Eduardo Habkost, Alexey Kardashevskiy, Markus Armbruster,
	qemu-devel, Stefan Hajnoczi, Paolo Bonzini,
	Phillipe Mathieu-Daude

Heya,

> On Jan 28, 2020, at 3:54 PM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
> 
> Hi Felipe,
> 
> On Fri, Jan 24, 2020 at 11:49 AM Felipe Franciosi <felipe@nutanix.com> wrote:
>> 
>> Hi Marc-Andre and Paolo,
>> 
>>> On Dec 20, 2019, at 3:15 PM, Marc-André Lureau <marcandre.lureau@gmail.com> wrote:
>>> 
>>> Hi
>>> 
>>> On Thu, Dec 19, 2019 at 10:02 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 3 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 |  44 +++++++--
>>>> memory.c             |  15 +--
>>>> qom/object.c         | 216 ++++++++++++++++++++++++++++++++++++++-----
>>>> target/arm/cpu.c     |  22 +----
>>>> target/i386/sev.c    | 106 ++-------------------
>>>> ui/console.c         |   4 +-
>>>> 14 files changed, 282 insertions(+), 318 deletions(-)
>>> 
>>> It conflicts with some recent changes, so you'll need to send a new
>>> version, but that one looks good to me:
>>> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
>>> 
>>> Paolo, is it going through your queue?
>> 
>> I didn't see any response after this. Did the series get lost?
> 
> Can you send a rebased version?

Sorry for the delay as I was on travels. Done.

F.

> 
> thanks
> 
> 
> 
> -- 
> Marc-André Lureau


^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2020-02-03 15:57 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-19 18:02 [PATCH v4 0/4] Improve default object property_add uint helpers Felipe Franciosi
2019-12-19 18:02 ` [PATCH v4 1/4] qom/object: enable setter for uint types Felipe Franciosi
2019-12-19 18:02 ` [PATCH v4 2/4] ich9: fix getter type for sci_int property Felipe Franciosi
2019-12-19 18:02 ` [PATCH v4 3/4] ich9: Simplify ich9_lpc_initfn Felipe Franciosi
2019-12-20  1:11   ` Philippe Mathieu-Daudé
2019-12-19 18:02 ` [PATCH v4 4/4] qom/object: Use common get/set uint helpers Felipe Franciosi
2019-12-19 23:56 ` [PATCH v4 0/4] Improve default object property_add " Alexey Kardashevskiy
2019-12-20 10:46   ` Felipe Franciosi
2019-12-20 10:12 ` Stefan Hajnoczi
2019-12-20 15:15 ` Marc-André Lureau
2019-12-20 15:55   ` Felipe Franciosi
2020-01-24 10:49   ` Felipe Franciosi
2020-01-28 15:54     ` Marc-André Lureau
2020-02-03 15:55       ` Felipe Franciosi

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