acpi: make isa_build_aml() support AcpiDevAmlIf interface

To allow incremental conversion from ISADeviceClass::build_aml
to AcpiDevAmlIf, add support for the later without removing
the former. Once conversion is complete, another commit will
drop ISADeviceClass::build_aml related code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220608135340.3304695-3-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c
index cd5ad36..237e2ce 100644 (file)
--- a/hw/isa/isa-bus.c
+++ b/hw/isa/isa-bus.c
@@ -24,6 +24,7 @@
 #include "hw/sysbus.h"
 #include "sysemu/sysemu.h"
 #include "hw/isa/isa.h"
+#include "hw/acpi/acpi_aml_interface.h"
 
 static ISABus *isabus;
 
@@ -196,8 +197,12 @@ void isa_build_aml(ISABus *bus, Aml *scope)
     QTAILQ_FOREACH(kid, &bus->parent_obj.children, sibling) {
         dev = ISA_DEVICE(kid->child);
         dc = ISA_DEVICE_GET_CLASS(dev);
+        bool has_build_dev_aml = !!object_dynamic_cast(OBJECT(dev),
+                                                       TYPE_ACPI_DEV_AML_IF);
         if (dc->build_aml) {
             dc->build_aml(dev, scope);
+        } else if (has_build_dev_aml) {
+            call_dev_aml_func(DEVICE(dev), scope);
         }
     }
 }