1 files changed, 407 insertions, 166 deletions

diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c
index cc2400bcd5..39e7f3080a 100644
--- a/hw/ppc/spapr_drc.c
+++ b/hw/ppc/spapr_drc.c
@@ -27,29 +27,23 @@
 #define DRC_INDEX_TYPE_SHIFT 28
 #define DRC_INDEX_ID_MASK ((1ULL << DRC_INDEX_TYPE_SHIFT) - 1)
 
-static sPAPRDRConnectorTypeShift get_type_shift(sPAPRDRConnectorType type)
+sPAPRDRConnectorType spapr_drc_type(sPAPRDRConnector *drc)
 {
-    uint32_t shift = 0;
-
-    /* make sure this isn't SPAPR_DR_CONNECTOR_TYPE_ANY, or some
-     * other wonky value.
-     */
-    g_assert(is_power_of_2(type));
+    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
 
-    while (type != (1 << shift)) {
-        shift++;
-    }
-    return shift;
+    return 1 << drck->typeshift;
 }
 
-static uint32_t get_index(sPAPRDRConnector *drc)
+uint32_t spapr_drc_index(sPAPRDRConnector *drc)
 {
+    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
+
     /* no set format for a drc index: it only needs to be globally
      * unique. this is how we encode the DRC type on bare-metal
      * however, so might as well do that here
      */
-    return (get_type_shift(drc->type) << DRC_INDEX_TYPE_SHIFT) |
-            (drc->id & DRC_INDEX_ID_MASK);
+    return (drck->typeshift << DRC_INDEX_TYPE_SHIFT)
+        | (drc->id & DRC_INDEX_ID_MASK);
 }
 
 static uint32_t set_isolation_state(sPAPRDRConnector *drc,
@@ -57,7 +51,17 @@ static uint32_t set_isolation_state(sPAPRDRConnector *drc,
 {
     sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
 
-    trace_spapr_drc_set_isolation_state(get_index(drc), state);
+    trace_spapr_drc_set_isolation_state(spapr_drc_index(drc), state);
+
+    /* if the guest is configuring a device attached to this DRC, we
+     * should reset the configuration state at this point since it may
+     * no longer be reliable (guest released device and needs to start
+     * over, or unplug occurred so the FDT is no longer valid)
+     */
+    if (state == SPAPR_DR_ISOLATION_STATE_ISOLATED) {
+        g_free(drc->ccs);
+        drc->ccs = NULL;
+    }
 
     if (state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) {
         /* cannot unisolate a non-existent resource, and, or resources
@@ -79,7 +83,7 @@ static uint32_t set_isolation_state(sPAPRDRConnector *drc,
      * If the LMB being removed doesn't belong to a DIMM device that is
      * actually being unplugged, fail the isolation request here.
      */
-    if (drc->type == SPAPR_DR_CONNECTOR_TYPE_LMB) {
+    if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_LMB) {
         if ((state == SPAPR_DR_ISOLATION_STATE_ISOLATED) &&
              !drc->awaiting_release) {
             return RTAS_OUT_HW_ERROR;
@@ -98,11 +102,12 @@ static uint32_t set_isolation_state(sPAPRDRConnector *drc,
          * PAPR+ 2.7, 13.4
          */
         if (drc->awaiting_release) {
+            uint32_t drc_index = spapr_drc_index(drc);
             if (drc->configured) {
-                trace_spapr_drc_set_isolation_state_finalizing(get_index(drc));
+                trace_spapr_drc_set_isolation_state_finalizing(drc_index);
                 drck->detach(drc, DEVICE(drc->dev), NULL);
             } else {
-                trace_spapr_drc_set_isolation_state_deferring(get_index(drc));
+                trace_spapr_drc_set_isolation_state_deferring(drc_index);
             }
         }
         drc->configured = false;
@@ -114,7 +119,7 @@ static uint32_t set_isolation_state(sPAPRDRConnector *drc,
 static uint32_t set_indicator_state(sPAPRDRConnector *drc,
                                     sPAPRDRIndicatorState state)
 {
-    trace_spapr_drc_set_indicator_state(get_index(drc), state);
+    trace_spapr_drc_set_indicator_state(spapr_drc_index(drc), state);
     drc->indicator_state = state;
     return RTAS_OUT_SUCCESS;
 }
@@ -124,7 +129,7 @@ static uint32_t set_allocation_state(sPAPRDRConnector *drc,
 {
     sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
 
-    trace_spapr_drc_set_allocation_state(get_index(drc), state);
+    trace_spapr_drc_set_allocation_state(spapr_drc_index(drc), state);
 
     if (state == SPAPR_DR_ALLOCATION_STATE_USABLE) {
         /* if there's no resource/device associated with the DRC, there's
@@ -148,11 +153,12 @@ static uint32_t set_allocation_state(sPAPRDRConnector *drc,
         }
     }
 
-    if (drc->type != SPAPR_DR_CONNECTOR_TYPE_PCI) {
+    if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI) {
         drc->allocation_state = state;
         if (drc->awaiting_release &&
             drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_UNUSABLE) {
-            trace_spapr_drc_set_allocation_state_finalizing(get_index(drc));
+            uint32_t drc_index = spapr_drc_index(drc);
+            trace_spapr_drc_set_allocation_state_finalizing(drc_index);
             drck->detach(drc, DEVICE(drc->dev), NULL);
         } else if (drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE) {
             drc->awaiting_allocation = false;
@@ -161,36 +167,11 @@ static uint32_t set_allocation_state(sPAPRDRConnector *drc,
     return RTAS_OUT_SUCCESS;
 }
 
-static uint32_t get_type(sPAPRDRConnector *drc)
-{
-    return drc->type;
-}
-
 static const char *get_name(sPAPRDRConnector *drc)
 {
     return drc->name;
 }
 
-static const void *get_fdt(sPAPRDRConnector *drc, int *fdt_start_offset)
-{
-    if (fdt_start_offset) {
-        *fdt_start_offset = drc->fdt_start_offset;
-    }
-    return drc->fdt;
-}
-
-static void set_configured(sPAPRDRConnector *drc)
-{
-    trace_spapr_drc_set_configured(get_index(drc));
-
-    if (drc->isolation_state != SPAPR_DR_ISOLATION_STATE_UNISOLATED) {
-        /* guest should be not configuring an isolated device */
-        trace_spapr_drc_set_configured_skipping(get_index(drc));
-        return;
-    }
-    drc->configured = true;
-}
-
 /* has the guest been notified of device attachment? */
 static void set_signalled(sPAPRDRConnector *drc)
 {
@@ -207,7 +188,7 @@ static void set_signalled(sPAPRDRConnector *drc)
 static uint32_t entity_sense(sPAPRDRConnector *drc, sPAPRDREntitySense *state)
 {
     if (drc->dev) {
-        if (drc->type != SPAPR_DR_CONNECTOR_TYPE_PCI &&
+        if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI &&
             drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_UNUSABLE) {
             /* for logical DR, we return a state of UNUSABLE
              * iff the allocation state UNUSABLE.
@@ -225,7 +206,7 @@ static uint32_t entity_sense(sPAPRDRConnector *drc, sPAPRDREntitySense *state)
             *state = SPAPR_DR_ENTITY_SENSE_PRESENT;
         }
     } else {
-        if (drc->type == SPAPR_DR_CONNECTOR_TYPE_PCI) {
+        if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_PCI) {
             /* PCI devices, and only PCI devices, use EMPTY
              * in cases where we'd otherwise use UNUSABLE
              */
@@ -235,7 +216,7 @@ static uint32_t entity_sense(sPAPRDRConnector *drc, sPAPRDREntitySense *state)
         }
     }
 
-    trace_spapr_drc_entity_sense(get_index(drc), *state);
+    trace_spapr_drc_entity_sense(spapr_drc_index(drc), *state);
     return RTAS_OUT_SUCCESS;
 }
 
@@ -243,17 +224,7 @@ static void prop_get_index(Object *obj, Visitor *v, const char *name,
                            void *opaque, Error **errp)
 {
     sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj);
-    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
-    uint32_t value = (uint32_t)drck->get_index(drc);
-    visit_type_uint32(v, name, &value, errp);
-}
-
-static void prop_get_type(Object *obj, Visitor *v, const char *name,
-                          void *opaque, Error **errp)
-{
-    sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj);
-    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
-    uint32_t value = (uint32_t)drck->get_type(drc);
+    uint32_t value = spapr_drc_index(drc);
     visit_type_uint32(v, name, &value, errp);
 }
 
@@ -264,17 +235,6 @@ static char *prop_get_name(Object *obj, Error **errp)
     return g_strdup(drck->get_name(drc));
 }
 
-static void prop_get_entity_sense(Object *obj, Visitor *v, const char *name,
-                                  void *opaque, Error **errp)
-{
-    sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj);
-    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
-    uint32_t value;
-
-    drck->entity_sense(drc, &value);
-    visit_type_uint32(v, name, &value, errp);
-}
-
 static void prop_get_fdt(Object *obj, Visitor *v, const char *name,
                          void *opaque, Error **errp)
 {
@@ -354,13 +314,13 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name,
 static void attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt,
                    int fdt_start_offset, bool coldplug, Error **errp)
 {
-    trace_spapr_drc_attach(get_index(drc));
+    trace_spapr_drc_attach(spapr_drc_index(drc));
 
     if (drc->isolation_state != SPAPR_DR_ISOLATION_STATE_ISOLATED) {
         error_setg(errp, "an attached device is still awaiting release");
         return;
     }
-    if (drc->type == SPAPR_DR_CONNECTOR_TYPE_PCI) {
+    if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_PCI) {
         g_assert(drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE);
     }
     g_assert(fdt || coldplug);
@@ -372,7 +332,7 @@ static void attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt,
      * may be accessing the device, we can easily crash the guest, so we
      * we defer completion of removal in such cases to the reset() hook.
      */
-    if (drc->type == SPAPR_DR_CONNECTOR_TYPE_PCI) {
+    if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_PCI) {
         drc->isolation_state = SPAPR_DR_ISOLATION_STATE_UNISOLATED;
     }
     drc->indicator_state = SPAPR_DR_INDICATOR_STATE_ACTIVE;
@@ -390,10 +350,10 @@ static void attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt,
      * 'physical' DR resources such as PCI where each device/resource is
      * signalled individually.
      */
-    drc->signalled = (drc->type != SPAPR_DR_CONNECTOR_TYPE_PCI)
+    drc->signalled = (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI)
                      ? true : coldplug;
 
-    if (drc->type != SPAPR_DR_CONNECTOR_TYPE_PCI) {
+    if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI) {
         drc->awaiting_allocation = true;
     }
 
@@ -405,7 +365,7 @@ static void attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt,
 
 static void detach(sPAPRDRConnector *drc, DeviceState *d, Error **errp)
 {
-    trace_spapr_drc_detach(get_index(drc));
+    trace_spapr_drc_detach(spapr_drc_index(drc));
 
     /* if we've signalled device presence to the guest, or if the guest
      * has gone ahead and configured the device (via manually-executed
@@ -428,14 +388,14 @@ static void detach(sPAPRDRConnector *drc, DeviceState *d, Error **errp)
     }
 
     if (drc->isolation_state != SPAPR_DR_ISOLATION_STATE_ISOLATED) {
-        trace_spapr_drc_awaiting_isolated(get_index(drc));
+        trace_spapr_drc_awaiting_isolated(spapr_drc_index(drc));
         drc->awaiting_release = true;
         return;
     }
 
-    if (drc->type != SPAPR_DR_CONNECTOR_TYPE_PCI &&
+    if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI &&
         drc->allocation_state != SPAPR_DR_ALLOCATION_STATE_UNUSABLE) {
-        trace_spapr_drc_awaiting_unusable(get_index(drc));
+        trace_spapr_drc_awaiting_unusable(spapr_drc_index(drc));
         drc->awaiting_release = true;
         return;
     }
@@ -443,15 +403,15 @@ static void detach(sPAPRDRConnector *drc, DeviceState *d, Error **errp)
     if (drc->awaiting_allocation) {
         if (!drc->awaiting_allocation_skippable) {
             drc->awaiting_release = true;
-            trace_spapr_drc_awaiting_allocation(get_index(drc));
+            trace_spapr_drc_awaiting_allocation(spapr_drc_index(drc));
             return;
         }
     }
 
     drc->indicator_state = SPAPR_DR_INDICATOR_STATE_INACTIVE;
 
-    /* Calling release callbacks based on drc->type. */
-    switch (drc->type) {
+    /* Calling release callbacks based on spapr_drc_type(drc). */
+    switch (spapr_drc_type(drc)) {
     case SPAPR_DR_CONNECTOR_TYPE_CPU:
         spapr_core_release(drc->dev);
         break;
@@ -487,7 +447,11 @@ static void reset(DeviceState *d)
     sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
     sPAPRDREntitySense state;
 
-    trace_spapr_drc_reset(drck->get_index(drc));
+    trace_spapr_drc_reset(spapr_drc_index(drc));
+
+    g_free(drc->ccs);
+    drc->ccs = NULL;
+
     /* immediately upon reset we can safely assume DRCs whose devices
      * are pending removal can be safely removed, and that they will
      * subsequently be left in an ISOLATED state. move the DRC to this
@@ -507,7 +471,7 @@ static void reset(DeviceState *d)
         }
 
         /* non-PCI devices may be awaiting a transition to UNUSABLE */
-        if (drc->type != SPAPR_DR_CONNECTOR_TYPE_PCI &&
+        if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI &&
             drc->awaiting_release) {
             drck->set_allocation_state(drc, SPAPR_DR_ALLOCATION_STATE_UNUSABLE);
         }
@@ -536,22 +500,18 @@ static bool spapr_drc_needed(void *opaque)
      * If there is dev plugged in, we need to migrate the DRC state when
      * it is different from cold-plugged state
      */
-    switch (drc->type) {
+    switch (spapr_drc_type(drc)) {
     case SPAPR_DR_CONNECTOR_TYPE_PCI:
-        rc = !((drc->isolation_state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) &&
-               (drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE) &&
-               drc->configured && drc->signalled && !drc->awaiting_release);
-        break;
     case SPAPR_DR_CONNECTOR_TYPE_CPU:
     case SPAPR_DR_CONNECTOR_TYPE_LMB:
-        rc = !((drc->isolation_state == SPAPR_DR_ISOLATION_STATE_ISOLATED) &&
-               (drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_UNUSABLE) &&
+        rc = !((drc->isolation_state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) &&
+               (drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE) &&
                drc->configured && drc->signalled && !drc->awaiting_release);
         break;
     case SPAPR_DR_CONNECTOR_TYPE_PHB:
     case SPAPR_DR_CONNECTOR_TYPE_VIO:
     default:
-        g_assert(false);
+        g_assert_not_reached();
     }
     return rc;
 }
@@ -576,13 +536,12 @@ static const VMStateDescription vmstate_spapr_drc = {
 static void realize(DeviceState *d, Error **errp)
 {
     sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d);
-    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
     Object *root_container;
     char link_name[256];
     gchar *child_name;
     Error *err = NULL;
 
-    trace_spapr_drc_realize(drck->get_index(drc));
+    trace_spapr_drc_realize(spapr_drc_index(drc));
     /* NOTE: we do this as part of realize/unrealize due to the fact
      * that the guest will communicate with the DRC via RTAS calls
      * referencing the global DRC index. By unlinking the DRC
@@ -591,9 +550,9 @@ static void realize(DeviceState *d, Error **errp)
      * existing in the composition tree
      */
     root_container = container_get(object_get_root(), DRC_CONTAINER_PATH);
-    snprintf(link_name, sizeof(link_name), "%x", drck->get_index(drc));
+    snprintf(link_name, sizeof(link_name), "%x", spapr_drc_index(drc));
     child_name = object_get_canonical_path_component(OBJECT(drc));
-    trace_spapr_drc_realize_child(drck->get_index(drc), child_name);
+    trace_spapr_drc_realize_child(spapr_drc_index(drc), child_name);
     object_property_add_alias(root_container, link_name,
                               drc->owner, child_name, &err);
     if (err) {
@@ -601,22 +560,21 @@ static void realize(DeviceState *d, Error **errp)
         object_unref(OBJECT(drc));
     }
     g_free(child_name);
-    vmstate_register(DEVICE(drc), drck->get_index(drc), &vmstate_spapr_drc,
+    vmstate_register(DEVICE(drc), spapr_drc_index(drc), &vmstate_spapr_drc,
                      drc);
-    trace_spapr_drc_realize_complete(drck->get_index(drc));
+    trace_spapr_drc_realize_complete(spapr_drc_index(drc));
 }
 
 static void unrealize(DeviceState *d, Error **errp)
 {
     sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d);
-    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
     Object *root_container;
     char name[256];
     Error *err = NULL;
 
-    trace_spapr_drc_unrealize(drck->get_index(drc));
+    trace_spapr_drc_unrealize(spapr_drc_index(drc));
     root_container = container_get(object_get_root(), DRC_CONTAINER_PATH);
-    snprintf(name, sizeof(name), "%x", drck->get_index(drc));
+    snprintf(name, sizeof(name), "%x", spapr_drc_index(drc));
     object_property_del(root_container, name, &err);
     if (err) {
         error_report_err(err);
@@ -624,20 +582,16 @@ static void unrealize(DeviceState *d, Error **errp)
     }
 }
 
-sPAPRDRConnector *spapr_dr_connector_new(Object *owner,
-                                         sPAPRDRConnectorType type,
+sPAPRDRConnector *spapr_dr_connector_new(Object *owner, const char *type,
                                          uint32_t id)
 {
-    sPAPRDRConnector *drc =
-        SPAPR_DR_CONNECTOR(object_new(TYPE_SPAPR_DR_CONNECTOR));
+    sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(object_new(type));
     char *prop_name;
 
-    g_assert(type);
-
-    drc->type = type;
     drc->id = id;
     drc->owner = owner;
-    prop_name = g_strdup_printf("dr-connector[%"PRIu32"]", get_index(drc));
+    prop_name = g_strdup_printf("dr-connector[%"PRIu32"]",
+                                spapr_drc_index(drc));
     object_property_add_child(owner, prop_name, OBJECT(drc), NULL);
     object_property_set_bool(OBJECT(drc), true, "realized", NULL);
     g_free(prop_name);
@@ -663,7 +617,7 @@ sPAPRDRConnector *spapr_dr_connector_new(Object *owner,
      * DRC names as documented by PAPR+ v2.7, 13.5.2.4
      * location codes as documented by PAPR+ v2.7, 12.3.1.5
      */
-    switch (drc->type) {
+    switch (spapr_drc_type(drc)) {
     case SPAPR_DR_CONNECTOR_TYPE_CPU:
         drc->name = g_strdup_printf("CPU %d", id);
         break;
@@ -682,7 +636,7 @@ sPAPRDRConnector *spapr_dr_connector_new(Object *owner,
     }
 
     /* PCI slot always start in a USABLE state, and stay there */
-    if (drc->type == SPAPR_DR_CONNECTOR_TYPE_PCI) {
+    if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_PCI) {
         drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_USABLE;
     }
 
@@ -693,20 +647,10 @@ static void spapr_dr_connector_instance_init(Object *obj)
 {
     sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj);
 
-    object_property_add_uint32_ptr(obj, "isolation-state",
-                                   &drc->isolation_state, NULL);
-    object_property_add_uint32_ptr(obj, "indicator-state",
-                                   &drc->indicator_state, NULL);
-    object_property_add_uint32_ptr(obj, "allocation-state",
-                                   &drc->allocation_state, NULL);
     object_property_add_uint32_ptr(obj, "id", &drc->id, NULL);
     object_property_add(obj, "index", "uint32", prop_get_index,
                         NULL, NULL, NULL, NULL);
-    object_property_add(obj, "connector_type", "uint32", prop_get_type,
-                        NULL, NULL, NULL, NULL);
     object_property_add_str(obj, "name", prop_get_name, NULL, NULL);
-    object_property_add(obj, "entity-sense", "uint32", prop_get_entity_sense,
-                        NULL, NULL, NULL, NULL);
     object_property_add(obj, "fdt", "struct", prop_get_fdt,
                         NULL, NULL, NULL, NULL);
 }
@@ -722,11 +666,7 @@ static void spapr_dr_connector_class_init(ObjectClass *k, void *data)
     drck->set_isolation_state = set_isolation_state;
     drck->set_indicator_state = set_indicator_state;
     drck->set_allocation_state = set_allocation_state;
-    drck->get_index = get_index;
-    drck->get_type = get_type;
     drck->get_name = get_name;
-    drck->get_fdt = get_fdt;
-    drck->set_configured = set_configured;
     drck->entity_sense = entity_sense;
     drck->attach = attach;
     drck->detach = detach;
@@ -738,6 +678,30 @@ static void spapr_dr_connector_class_init(ObjectClass *k, void *data)
     dk->user_creatable = false;
 }
 
+static void spapr_drc_cpu_class_init(ObjectClass *k, void *data)
+{
+    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k);
+
+    drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_CPU;
+    drck->typename = "CPU";
+}
+
+static void spapr_drc_pci_class_init(ObjectClass *k, void *data)
+{
+    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k);
+
+    drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI;
+    drck->typename = "28";
+}
+
+static void spapr_drc_lmb_class_init(ObjectClass *k, void *data)
+{
+    sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k);
+
+    drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB;
+    drck->typename = "MEM";
+}
+
 static const TypeInfo spapr_dr_connector_info = {
     .name          = TYPE_SPAPR_DR_CONNECTOR,
     .parent        = TYPE_DEVICE,
@@ -745,18 +709,47 @@ static const TypeInfo spapr_dr_connector_info = {
     .instance_init = spapr_dr_connector_instance_init,
     .class_size    = sizeof(sPAPRDRConnectorClass),
     .class_init    = spapr_dr_connector_class_init,
+    .abstract      = true,
 };
 
-static void spapr_drc_register_types(void)
-{
-    type_register_static(&spapr_dr_connector_info);
-}
+static const TypeInfo spapr_drc_physical_info = {
+    .name          = TYPE_SPAPR_DRC_PHYSICAL,
+    .parent        = TYPE_SPAPR_DR_CONNECTOR,
+    .instance_size = sizeof(sPAPRDRConnector),
+    .abstract      = true,
+};
 
-type_init(spapr_drc_register_types)
+static const TypeInfo spapr_drc_logical_info = {
+    .name          = TYPE_SPAPR_DRC_LOGICAL,
+    .parent        = TYPE_SPAPR_DR_CONNECTOR,
+    .instance_size = sizeof(sPAPRDRConnector),
+    .abstract      = true,
+};
+
+static const TypeInfo spapr_drc_cpu_info = {
+    .name          = TYPE_SPAPR_DRC_CPU,
+    .parent        = TYPE_SPAPR_DRC_LOGICAL,
+    .instance_size = sizeof(sPAPRDRConnector),
+    .class_init    = spapr_drc_cpu_class_init,
+};
+
+static const TypeInfo spapr_drc_pci_info = {
+    .name          = TYPE_SPAPR_DRC_PCI,
+    .parent        = TYPE_SPAPR_DRC_PHYSICAL,
+    .instance_size = sizeof(sPAPRDRConnector),
+    .class_init    = spapr_drc_pci_class_init,
+};
+
+static const TypeInfo spapr_drc_lmb_info = {
+    .name          = TYPE_SPAPR_DRC_LMB,
+    .parent        = TYPE_SPAPR_DRC_LOGICAL,
+    .instance_size = sizeof(sPAPRDRConnector),
+    .class_init    = spapr_drc_lmb_class_init,
+};
 
 /* helper functions for external users */
 
-sPAPRDRConnector *spapr_dr_connector_by_index(uint32_t index)
+sPAPRDRConnector *spapr_drc_by_index(uint32_t index)
 {
     Object *obj;
     char name[256];
@@ -767,37 +760,13 @@ sPAPRDRConnector *spapr_dr_connector_by_index(uint32_t index)
     return !obj ? NULL : SPAPR_DR_CONNECTOR(obj);
 }
 
-sPAPRDRConnector *spapr_dr_connector_by_id(sPAPRDRConnectorType type,
-                                           uint32_t id)
+sPAPRDRConnector *spapr_drc_by_id(const char *type, uint32_t id)
 {
-    return spapr_dr_connector_by_index(
-            (get_type_shift(type) << DRC_INDEX_TYPE_SHIFT) |
-            (id & DRC_INDEX_ID_MASK));
-}
-
-/* generate a string the describes the DRC to encode into the
- * device tree.
- *
- * as documented by PAPR+ v2.7, 13.5.2.6 and C.6.1
- */
-static const char *spapr_drc_get_type_str(sPAPRDRConnectorType type)
-{
-    switch (type) {
-    case SPAPR_DR_CONNECTOR_TYPE_CPU:
-        return "CPU";
-    case SPAPR_DR_CONNECTOR_TYPE_PHB:
-        return "PHB";
-    case SPAPR_DR_CONNECTOR_TYPE_VIO:
-        return "SLOT";
-    case SPAPR_DR_CONNECTOR_TYPE_PCI:
-        return "28";
-    case SPAPR_DR_CONNECTOR_TYPE_LMB:
-        return "MEM";
-    default:
-        g_assert(false);
-    }
+    sPAPRDRConnectorClass *drck
+        = SPAPR_DR_CONNECTOR_CLASS(object_class_by_name(type));
 
-    return NULL;
+    return spapr_drc_by_index(drck->typeshift << DRC_INDEX_TYPE_SHIFT
+                              | (id & DRC_INDEX_ID_MASK));
 }
 
 /**
@@ -862,14 +831,14 @@ int spapr_drc_populate_dt(void *fdt, int fdt_offset, Object *owner,
             continue;
         }
 
-        if ((drc->type & drc_type_mask) == 0) {
+        if ((spapr_drc_type(drc) & drc_type_mask) == 0) {
             continue;
         }
 
         drc_count++;
 
         /* ibm,drc-indexes */
-        drc_index = cpu_to_be32(drck->get_index(drc));
+        drc_index = cpu_to_be32(spapr_drc_index(drc));
         g_array_append_val(drc_indexes, drc_index);
 
         /* ibm,drc-power-domains */
@@ -881,8 +850,7 @@ int spapr_drc_populate_dt(void *fdt, int fdt_offset, Object *owner,
         drc_names = g_string_insert_len(drc_names, -1, "\0", 1);
 
         /* ibm,drc-types */
-        drc_types = g_string_append(drc_types,
-                                    spapr_drc_get_type_str(drc->type));
+        drc_types = g_string_append(drc_types, drck->typename);
         drc_types = g_string_insert_len(drc_types, -1, "\0", 1);
     }
 
@@ -932,3 +900,276 @@ out:
 
     return ret;
 }
+
+/*
+ * RTAS calls
+ */
+
+static bool sensor_type_is_dr(uint32_t sensor_type)
+{
+    switch (sensor_type) {
+    case RTAS_SENSOR_TYPE_ISOLATION_STATE:
+    case RTAS_SENSOR_TYPE_DR:
+    case RTAS_SENSOR_TYPE_ALLOCATION_STATE:
+        return true;
+    }
+
+    return false;
+}
+
+static void rtas_set_indicator(PowerPCCPU *cpu, sPAPRMachineState *spapr,
+                               uint32_t token, uint32_t nargs,
+                               target_ulong args, uint32_t nret,
+                               target_ulong rets)
+{
+    uint32_t sensor_type;
+    uint32_t sensor_index;
+    uint32_t sensor_state;
+    uint32_t ret = RTAS_OUT_SUCCESS;
+    sPAPRDRConnector *drc;
+    sPAPRDRConnectorClass *drck;
+
+    if (nargs != 3 || nret != 1) {
+        ret = RTAS_OUT_PARAM_ERROR;
+        goto out;
+    }
+
+    sensor_type = rtas_ld(args, 0);
+    sensor_index = rtas_ld(args, 1);
+    sensor_state = rtas_ld(args, 2);
+
+    if (!sensor_type_is_dr(sensor_type)) {
+        goto out_unimplemented;
+    }
+
+    /* if this is a DR sensor we can assume sensor_index == drc_index */
+    drc = spapr_drc_by_index(sensor_index);
+    if (!drc) {
+        trace_spapr_rtas_set_indicator_invalid(sensor_index);
+        ret = RTAS_OUT_PARAM_ERROR;
+        goto out;
+    }
+    drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
+
+    switch (sensor_type) {
+    case RTAS_SENSOR_TYPE_ISOLATION_STATE:
+        ret = drck->set_isolation_state(drc, sensor_state);
+        break;
+    case RTAS_SENSOR_TYPE_DR:
+        ret = drck->set_indicator_state(drc, sensor_state);
+        break;
+    case RTAS_SENSOR_TYPE_ALLOCATION_STATE:
+        ret = drck->set_allocation_state(drc, sensor_state);
+        break;
+    default:
+        goto out_unimplemented;
+    }
+
+out:
+    rtas_st(rets, 0, ret);
+    return;
+
+out_unimplemented:
+    /* currently only DR-related sensors are implemented */
+    trace_spapr_rtas_set_indicator_not_supported(sensor_index, sensor_type);
+    rtas_st(rets, 0, RTAS_OUT_NOT_SUPPORTED);
+}
+
+static void rtas_get_sensor_state(PowerPCCPU *cpu, sPAPRMachineState *spapr,
+                                  uint32_t token, uint32_t nargs,
+                                  target_ulong args, uint32_t nret,
+                                  target_ulong rets)
+{
+    uint32_t sensor_type;
+    uint32_t sensor_index;
+    uint32_t sensor_state = 0;
+    sPAPRDRConnector *drc;
+    sPAPRDRConnectorClass *drck;
+    uint32_t ret = RTAS_OUT_SUCCESS;
+
+    if (nargs != 2 || nret != 2) {
+        ret = RTAS_OUT_PARAM_ERROR;
+        goto out;
+    }
+
+    sensor_type = rtas_ld(args, 0);
+    sensor_index = rtas_ld(args, 1);
+
+    if (sensor_type != RTAS_SENSOR_TYPE_ENTITY_SENSE) {
+        /* currently only DR-related sensors are implemented */
+        trace_spapr_rtas_get_sensor_state_not_supported(sensor_index,
+                                                        sensor_type);
+        ret = RTAS_OUT_NOT_SUPPORTED;
+        goto out;
+    }
+
+    drc = spapr_drc_by_index(sensor_index);
+    if (!drc) {
+        trace_spapr_rtas_get_sensor_state_invalid(sensor_index);
+        ret = RTAS_OUT_PARAM_ERROR;
+        goto out;
+    }
+    drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
+    ret = drck->entity_sense(drc, &sensor_state);
+
+out:
+    rtas_st(rets, 0, ret);
+    rtas_st(rets, 1, sensor_state);
+}
+
+/* configure-connector work area offsets, int32_t units for field
+ * indexes, bytes for field offset/len values.
+ *
+ * as documented by PAPR+ v2.7, 13.5.3.5
+ */
+#define CC_IDX_NODE_NAME_OFFSET 2
+#define CC_IDX_PROP_NAME_OFFSET 2
+#define CC_IDX_PROP_LEN 3
+#define CC_IDX_PROP_DATA_OFFSET 4
+#define CC_VAL_DATA_OFFSET ((CC_IDX_PROP_DATA_OFFSET + 1) * 4)
+#define CC_WA_LEN 4096
+
+static void configure_connector_st(target_ulong addr, target_ulong offset,
+                                   const void *buf, size_t len)
+{
+    cpu_physical_memory_write(ppc64_phys_to_real(addr + offset),
+                              buf, MIN(len, CC_WA_LEN - offset));
+}
+
+static void rtas_ibm_configure_connector(PowerPCCPU *cpu,
+                                         sPAPRMachineState *spapr,
+                                         uint32_t token, uint32_t nargs,
+                                         target_ulong args, uint32_t nret,
+                                         target_ulong rets)
+{
+    uint64_t wa_addr;
+    uint64_t wa_offset;
+    uint32_t drc_index;
+    sPAPRDRConnector *drc;
+    sPAPRConfigureConnectorState *ccs;
+    sPAPRDRCCResponse resp = SPAPR_DR_CC_RESPONSE_CONTINUE;
+    int rc;
+
+    if (nargs != 2 || nret != 1) {
+        rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
+        return;
+    }
+
+    wa_addr = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 0);
+
+    drc_index = rtas_ld(wa_addr, 0);
+    drc = spapr_drc_by_index(drc_index);
+    if (!drc) {
+        trace_spapr_rtas_ibm_configure_connector_invalid(drc_index);
+        rc = RTAS_OUT_PARAM_ERROR;
+        goto out;
+    }
+
+    if (!drc->fdt) {
+        trace_spapr_rtas_ibm_configure_connector_missing_fdt(drc_index);
+        rc = SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE;
+        goto out;
+    }
+
+    ccs = drc->ccs;
+    if (!ccs) {
+        ccs = g_new0(sPAPRConfigureConnectorState, 1);
+        ccs->fdt_offset = drc->fdt_start_offset;
+        drc->ccs = ccs;
+    }
+
+    do {
+        uint32_t tag;
+        const char *name;
+        const struct fdt_property *prop;
+        int fdt_offset_next, prop_len;
+
+        tag = fdt_next_tag(drc->fdt, ccs->fdt_offset, &fdt_offset_next);
+
+        switch (tag) {
+        case FDT_BEGIN_NODE:
+            ccs->fdt_depth++;
+            name = fdt_get_name(drc->fdt, ccs->fdt_offset, NULL);
+
+            /* provide the name of the next OF node */
+            wa_offset = CC_VAL_DATA_OFFSET;
+            rtas_st(wa_addr, CC_IDX_NODE_NAME_OFFSET, wa_offset);
+            configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1);
+            resp = SPAPR_DR_CC_RESPONSE_NEXT_CHILD;
+            break;
+        case FDT_END_NODE:
+            ccs->fdt_depth--;
+            if (ccs->fdt_depth == 0) {
+                sPAPRDRIsolationState state = drc->isolation_state;
+                uint32_t drc_index = spapr_drc_index(drc);
+                /* done sending the device tree, don't need to track
+                 * the state anymore
+                 */
+                trace_spapr_drc_set_configured(drc_index);
+                if (state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) {
+                    drc->configured = true;
+                } else {
+                    /* guest should be not configuring an isolated device */
+                    trace_spapr_drc_set_configured_skipping(drc_index);
+                }
+                g_free(ccs);
+                drc->ccs = NULL;
+                ccs = NULL;
+                resp = SPAPR_DR_CC_RESPONSE_SUCCESS;
+            } else {
+                resp = SPAPR_DR_CC_RESPONSE_PREV_PARENT;
+            }
+            break;
+        case FDT_PROP:
+            prop = fdt_get_property_by_offset(drc->fdt, ccs->fdt_offset,
+                                              &prop_len);
+            name = fdt_string(drc->fdt, fdt32_to_cpu(prop->nameoff));
+
+            /* provide the name of the next OF property */
+            wa_offset = CC_VAL_DATA_OFFSET;
+            rtas_st(wa_addr, CC_IDX_PROP_NAME_OFFSET, wa_offset);
+            configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1);
+
+            /* provide the length and value of the OF property. data gets
+             * placed immediately after NULL terminator of the OF property's
+             * name string
+             */
+            wa_offset += strlen(name) + 1,
+            rtas_st(wa_addr, CC_IDX_PROP_LEN, prop_len);
+            rtas_st(wa_addr, CC_IDX_PROP_DATA_OFFSET, wa_offset);
+            configure_connector_st(wa_addr, wa_offset, prop->data, prop_len);
+            resp = SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY;
+            break;
+        case FDT_END:
+            resp = SPAPR_DR_CC_RESPONSE_ERROR;
+        default:
+            /* keep seeking for an actionable tag */
+            break;
+        }
+        if (ccs) {
+            ccs->fdt_offset = fdt_offset_next;
+        }
+    } while (resp == SPAPR_DR_CC_RESPONSE_CONTINUE);
+
+    rc = resp;
+out:
+    rtas_st(rets, 0, rc);
+}
+
+static void spapr_drc_register_types(void)
+{
+    type_register_static(&spapr_dr_connector_info);
+    type_register_static(&spapr_drc_physical_info);
+    type_register_static(&spapr_drc_logical_info);
+    type_register_static(&spapr_drc_cpu_info);
+    type_register_static(&spapr_drc_pci_info);
+    type_register_static(&spapr_drc_lmb_info);
+
+    spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator",
+                        rtas_set_indicator);
+    spapr_rtas_register(RTAS_GET_SENSOR_STATE, "get-sensor-state",
+                        rtas_get_sensor_state);
+    spapr_rtas_register(RTAS_IBM_CONFIGURE_CONNECTOR, "ibm,configure-connector",
+                        rtas_ibm_configure_connector);
+}
+type_init(spapr_drc_register_types)