#include "qapi/visitor.h"
#include "qemu/error-report.h"
#include "hw/ppc/spapr.h" /* for RTAS return codes */
+#include "hw/pci-host/spapr.h" /* spapr_phb_remove_pci_device_cb callback */
#include "trace.h"
#define DRC_CONTAINER_PATH "/dr-connector"
#define DRC_INDEX_TYPE_SHIFT 28
#define DRC_INDEX_ID_MASK ((1ULL << DRC_INDEX_TYPE_SHIFT) - 1)
+static sPAPRConfigureConnectorState *spapr_ccs_find(sPAPRMachineState *spapr,
+ uint32_t drc_index)
+{
+ sPAPRConfigureConnectorState *ccs = NULL;
+
+ QTAILQ_FOREACH(ccs, &spapr->ccs_list, next) {
+ if (ccs->drc_index == drc_index) {
+ break;
+ }
+ }
+
+ return ccs;
+}
+
+static void spapr_ccs_add(sPAPRMachineState *spapr,
+ sPAPRConfigureConnectorState *ccs)
+{
+ g_assert(!spapr_ccs_find(spapr, ccs->drc_index));
+ QTAILQ_INSERT_HEAD(&spapr->ccs_list, ccs, next);
+}
+
+static void spapr_ccs_remove(sPAPRMachineState *spapr,
+ sPAPRConfigureConnectorState *ccs)
+{
+ QTAILQ_REMOVE(&spapr->ccs_list, ccs, next);
+ g_free(ccs);
+}
+
static sPAPRDRConnectorTypeShift get_type_shift(sPAPRDRConnectorType type)
{
uint32_t shift = 0;
if (drc->awaiting_release) {
if (drc->configured) {
trace_spapr_drc_set_isolation_state_finalizing(get_index(drc));
- drck->detach(drc, DEVICE(drc->dev), drc->detach_cb,
- drc->detach_cb_opaque, NULL);
+ drck->detach(drc, DEVICE(drc->dev), NULL);
} else {
trace_spapr_drc_set_isolation_state_deferring(get_index(drc));
}
if (drc->awaiting_release &&
drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_UNUSABLE) {
trace_spapr_drc_set_allocation_state_finalizing(get_index(drc));
- drck->detach(drc, DEVICE(drc->dev), drc->detach_cb,
- drc->detach_cb_opaque, NULL);
+ drck->detach(drc, DEVICE(drc->dev), NULL);
} else if (drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE) {
drc->awaiting_allocation = false;
}
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));
NULL, 0, NULL);
}
-static void detach(sPAPRDRConnector *drc, DeviceState *d,
- spapr_drc_detach_cb *detach_cb,
- void *detach_cb_opaque, Error **errp)
+static void detach(sPAPRDRConnector *drc, DeviceState *d, Error **errp)
{
trace_spapr_drc_detach(get_index(drc));
- drc->detach_cb = detach_cb;
- drc->detach_cb_opaque = detach_cb_opaque;
-
/* if we've signalled device presence to the guest, or if the guest
* has gone ahead and configured the device (via manually-executed
* device add via drmgr in guest, namely), we need to wait
drc->indicator_state = SPAPR_DR_INDICATOR_STATE_INACTIVE;
- if (drc->detach_cb) {
- drc->detach_cb(drc->dev, drc->detach_cb_opaque);
+ /* Calling release callbacks based on drc->type. */
+ switch (drc->type) {
+ case SPAPR_DR_CONNECTOR_TYPE_CPU:
+ spapr_core_release(drc->dev);
+ break;
+ case SPAPR_DR_CONNECTOR_TYPE_PCI:
+ spapr_phb_remove_pci_device_cb(drc->dev);
+ break;
+ case SPAPR_DR_CONNECTOR_TYPE_LMB:
+ spapr_lmb_release(drc->dev);
+ break;
+ case SPAPR_DR_CONNECTOR_TYPE_PHB:
+ case SPAPR_DR_CONNECTOR_TYPE_VIO:
+ default:
+ g_assert(false);
}
drc->awaiting_release = false;
drc->fdt_start_offset = 0;
object_property_del(OBJECT(drc), "device", NULL);
drc->dev = NULL;
- drc->detach_cb = NULL;
- drc->detach_cb_opaque = NULL;
}
static bool release_pending(sPAPRDRConnector *drc)
* force removal if we are
*/
if (drc->awaiting_release) {
- drck->detach(drc, DEVICE(drc->dev), drc->detach_cb,
- drc->detach_cb_opaque, NULL);
+ drck->detach(drc, DEVICE(drc->dev), NULL);
}
/* non-PCI devices may be awaiting a transition to UNUSABLE */
}
}
+static bool spapr_drc_needed(void *opaque)
+{
+ sPAPRDRConnector *drc = (sPAPRDRConnector *)opaque;
+ sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
+ bool rc = false;
+ sPAPRDREntitySense value;
+ drck->entity_sense(drc, &value);
+
+ /* If no dev is plugged in there is no need to migrate the DRC state */
+ if (value != SPAPR_DR_ENTITY_SENSE_PRESENT) {
+ return false;
+ }
+
+ /*
+ * If there is dev plugged in, we need to migrate the DRC state when
+ * it is different from cold-plugged state
+ */
+ switch (drc->type) {
+ 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) &&
+ drc->configured && drc->signalled && !drc->awaiting_release);
+ break;
+ case SPAPR_DR_CONNECTOR_TYPE_PHB:
+ case SPAPR_DR_CONNECTOR_TYPE_VIO:
+ default:
+ g_assert(false);
+ }
+ return rc;
+}
+
+static const VMStateDescription vmstate_spapr_drc = {
+ .name = "spapr_drc",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = spapr_drc_needed,
+ .fields = (VMStateField []) {
+ VMSTATE_UINT32(isolation_state, sPAPRDRConnector),
+ VMSTATE_UINT32(allocation_state, sPAPRDRConnector),
+ VMSTATE_UINT32(indicator_state, sPAPRDRConnector),
+ VMSTATE_BOOL(configured, sPAPRDRConnector),
+ VMSTATE_BOOL(awaiting_release, sPAPRDRConnector),
+ VMSTATE_BOOL(awaiting_allocation, sPAPRDRConnector),
+ VMSTATE_BOOL(signalled, sPAPRDRConnector),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static void realize(DeviceState *d, Error **errp)
{
sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d);
object_unref(OBJECT(drc));
}
g_free(child_name);
+ vmstate_register(DEVICE(drc), drck->get_index(drc), &vmstate_spapr_drc,
+ drc);
trace_spapr_drc_realize_complete(drck->get_index(drc));
}
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;
/*
* Reason: it crashes FIXME find and document the real reason
*/
- dk->cannot_instantiate_with_device_add_yet = true;
+ dk->user_creatable = false;
}
static const TypeInfo spapr_dr_connector_info = {
.class_init = spapr_dr_connector_class_init,
};
-static void spapr_drc_register_types(void)
-{
- type_register_static(&spapr_dr_connector_info);
-}
-
-type_init(spapr_drc_register_types)
-
/* helper functions for external users */
sPAPRDRConnector *spapr_dr_connector_by_index(uint32_t index)
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_dr_connector_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:
+ /* 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 (sensor_state == SPAPR_DR_ISOLATION_STATE_ISOLATED) {
+ sPAPRConfigureConnectorState *ccs = spapr_ccs_find(spapr,
+ sensor_index);
+ if (ccs) {
+ spapr_ccs_remove(spapr, ccs);
+ }
+ }
+ 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_dr_connector_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));
+}
+
+void spapr_ccs_reset_hook(void *opaque)
+{
+ sPAPRMachineState *spapr = opaque;
+ sPAPRConfigureConnectorState *ccs, *ccs_tmp;
+
+ QTAILQ_FOREACH_SAFE(ccs, &spapr->ccs_list, next, ccs_tmp) {
+ spapr_ccs_remove(spapr, ccs);
+ }
+}
+
+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;
+ sPAPRDRConnectorClass *drck;
+ 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_dr_connector_by_index(drc_index);
+ if (!drc) {
+ trace_spapr_rtas_ibm_configure_connector_invalid(drc_index);
+ rc = RTAS_OUT_PARAM_ERROR;
+ goto out;
+ }
+
+ drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
+ if (!drc->fdt) {
+ trace_spapr_rtas_ibm_configure_connector_missing_fdt(drc_index);
+ rc = SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE;
+ goto out;
+ }
+
+ ccs = spapr_ccs_find(spapr, drc_index);
+ if (!ccs) {
+ ccs = g_new0(sPAPRConfigureConnectorState, 1);
+ ccs->fdt_offset = drc->fdt_start_offset;
+ ccs->drc_index = drc_index;
+ spapr_ccs_add(spapr, 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) {
+ /* done sending the device tree, don't need to track
+ * the state anymore
+ */
+ drck->set_configured(drc);
+ spapr_ccs_remove(spapr, ccs);
+ 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);
+
+ 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)
projects / qemu.git / blobdiff