[v4] pci,pc,virtio: features, tests, fixes, cleanups

[PULL v4 49/83] acpi: add get_dev_aml_func() helper

Michael S. Tsirkin posted 83 patches 3 years, 1 month ago

Diff against v1 v2 v3
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[PULL v4 49/83] acpi: add get_dev_aml_func() helper

Posted by Michael S. Tsirkin 3 years, 1 month ago

From: Igor Mammedov <imammedo@redhat.com>

It will be used in followup commits to figure out if
device has it's own, device specific AML block.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-7-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
---
 include/hw/acpi/acpi_aml_interface.h | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/include/hw/acpi/acpi_aml_interface.h b/include/hw/acpi/acpi_aml_interface.h
index ab76f0e55d..436da069d6 100644
--- a/include/hw/acpi/acpi_aml_interface.h
+++ b/include/hw/acpi/acpi_aml_interface.h
@@ -29,11 +29,20 @@ struct AcpiDevAmlIfClass {
     dev_aml_fn build_dev_aml;
 };
 
-static inline void call_dev_aml_func(DeviceState *dev, Aml *scope)
+static inline dev_aml_fn get_dev_aml_func(DeviceState *dev)
 {
     if (object_dynamic_cast(OBJECT(dev), TYPE_ACPI_DEV_AML_IF)) {
         AcpiDevAmlIfClass *klass = ACPI_DEV_AML_IF_GET_CLASS(dev);
-        klass->build_dev_aml(ACPI_DEV_AML_IF(dev), scope);
+        return klass->build_dev_aml;
+    }
+    return NULL;
+}
+
+static inline void call_dev_aml_func(DeviceState *dev, Aml *scope)
+{
+    dev_aml_fn fn = get_dev_aml_func(dev);
+    if (fn) {
+        fn(ACPI_DEV_AML_IF(dev), scope);
     }
 }
 
-- 
MST