acpi: add ISADeviceClass->build_aml()

Also add isa_aml_build() function which walks all isa devices.
This allows to move aml builder code to isa devices.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200429140003.7336-6-kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

3 files changed, 18 insertions, 0 deletions

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 3a046b0..97f3c75 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1288,6 +1288,7 @@ static void build_isa_devices_aml(Aml *table)
         error_report("No ISA bus, unable to define IPMI ACPI data");
     } else {
         build_acpi_ipmi_devices(scope, BUS(obj), "\\_SB.PCI0.ISA");
+        isa_build_aml(ISA_BUS(obj), scope);
     }
 
     aml_append(table, scope);
diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c
index 798dd91..1f2189f 100644
--- a/hw/isa/isa-bus.c
+++ b/hw/isa/isa-bus.c
@@ -207,6 +207,21 @@ ISADevice *isa_vga_init(ISABus *bus)
     }
 }
 
+void isa_build_aml(ISABus *bus, Aml *scope)
+{
+    BusChild *kid;
+    ISADevice *dev;
+    ISADeviceClass *dc;
+
+    QTAILQ_FOREACH(kid, &bus->parent_obj.children, sibling) {
+        dev = ISA_DEVICE(kid->child);
+        dc = ISA_DEVICE_GET_CLASS(dev);
+        if (dc->build_aml) {
+            dc->build_aml(dev, scope);
+        }
+    }
+}
+
 static void isabus_dev_print(Monitor *mon, DeviceState *dev, int indent)
 {
     ISADevice *d = ISA_DEVICE(dev);
diff --git a/include/hw/isa/isa.h b/include/hw/isa/isa.h
index 59a4d4b..02c2350 100644
--- a/include/hw/isa/isa.h
+++ b/include/hw/isa/isa.h
@@ -69,6 +69,7 @@ typedef struct IsaDmaClass {
 
 typedef struct ISADeviceClass {
     DeviceClass parent_class;
+    void (*build_aml)(ISADevice *dev, Aml *scope);
 } ISADeviceClass;
 
 struct ISABus {
@@ -107,6 +108,7 @@ ISADevice *isa_try_create(ISABus *bus, const char *name);
 ISADevice *isa_create_simple(ISABus *bus, const char *name);
 
 ISADevice *isa_vga_init(ISABus *bus);
+void isa_build_aml(ISABus *bus, Aml *scope);
 
 /**
  * isa_register_ioport: Install an I/O port region on the ISA bus.