acpi: ipmi: use AcpiDevAmlIf interface to build IPMI device descriptors

convert ad-hoc way we use to generate AML for ISA/SMB IPMI devices
to a generic approach (i.e. make devices provide its own AML blobs
like it is done with other ISA devices (ex. KBD))

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220608135340.3304695-17-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2 files changed, 16 insertions, 35 deletions

diff --git a/hw/acpi/ipmi-stub.c b/hw/acpi/ipmi-stub.c
index f525f71c2d..befaf0a882 100644
--- a/hw/acpi/ipmi-stub.c
+++ b/hw/acpi/ipmi-stub.c
@@ -10,6 +10,6 @@
 #include "qemu/osdep.h"
 #include "hw/acpi/ipmi.h"
 
-void build_acpi_ipmi_devices(Aml *table, BusState *bus)
+void build_ipmi_dev_aml(AcpiDevAmlIf *adev, Aml *scope)
 {
 }
diff --git a/hw/acpi/ipmi.c b/hw/acpi/ipmi.c
index c30b44fcf5..a20e57d465 100644
--- a/hw/acpi/ipmi.c
+++ b/hw/acpi/ipmi.c
@@ -62,46 +62,27 @@ static Aml *aml_ipmi_crs(IPMIFwInfo *info)
     return crs;
 }
 
-static Aml *aml_ipmi_device(IPMIFwInfo *info)
+void build_ipmi_dev_aml(AcpiDevAmlIf *adev, Aml *scope)
 {
     Aml *dev;
-    uint16_t version = ((info->ipmi_spec_major_revision << 8)
-                        | (info->ipmi_spec_minor_revision << 4));
+    IPMIFwInfo info = {};
+    IPMIInterface *ii = IPMI_INTERFACE(adev);
+    IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
+    uint16_t version;
 
-    assert(info->ipmi_spec_minor_revision <= 15);
+    iic->get_fwinfo(ii, &info);
+    assert(info.ipmi_spec_minor_revision <= 15);
+    version = ((info.ipmi_spec_major_revision << 8)
+              | (info.ipmi_spec_minor_revision << 4));
 
-    dev = aml_device("MI%d", info->uuid);
+    dev = aml_device("MI%d", info.uuid);
     aml_append(dev, aml_name_decl("_HID", aml_eisaid("IPI0001")));
     aml_append(dev, aml_name_decl("_STR", aml_string("ipmi_%s",
-                                                     info->interface_name)));
-    aml_append(dev, aml_name_decl("_UID", aml_int(info->uuid)));
-    aml_append(dev, aml_name_decl("_CRS", aml_ipmi_crs(info)));
-    aml_append(dev, aml_name_decl("_IFT", aml_int(info->interface_type)));
+                                                     info.interface_name)));
+    aml_append(dev, aml_name_decl("_UID", aml_int(info.uuid)));
+    aml_append(dev, aml_name_decl("_CRS", aml_ipmi_crs(&info)));
+    aml_append(dev, aml_name_decl("_IFT", aml_int(info.interface_type)));
     aml_append(dev, aml_name_decl("_SRV", aml_int(version)));
 
-    return dev;
-}
-
-void build_acpi_ipmi_devices(Aml *scope, BusState *bus)
-{
-
-    BusChild *kid;
-
-    QTAILQ_FOREACH(kid, &bus->children,  sibling) {
-        IPMIInterface *ii;
-        IPMIInterfaceClass *iic;
-        IPMIFwInfo info;
-        Object *obj = object_dynamic_cast(OBJECT(kid->child),
-                                          TYPE_IPMI_INTERFACE);
-
-        if (!obj) {
-            continue;
-        }
-
-        ii = IPMI_INTERFACE(obj);
-        iic = IPMI_INTERFACE_GET_CLASS(obj);
-        memset(&info, 0, sizeof(info));
-        iic->get_fwinfo(ii, &info);
-        aml_append(scope, aml_ipmi_device(&info));
-    }
+    aml_append(scope, dev);
 }