spapr_rtas: add set-indicator RTAS interface
This interface allows a guest to control various platform/device sensors. Initially, we only implement support necessary to control sensors that are required for hotplug: DR connector indicators/LEDs, resource allocation state, and resource isolation state. See docs/specs/ppc-spapr-hotplug.txt for a complete description of this interface. Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
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@ -35,6 +35,18 @@
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#include "qapi-event.h"
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#include "qapi-event.h"
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#include <libfdt.h>
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#include <libfdt.h>
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#include "hw/ppc/spapr_drc.h"
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/* #define DEBUG_SPAPR */
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#ifdef DEBUG_SPAPR
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#define DPRINTF(fmt, ...) \
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do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
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#else
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#define DPRINTF(fmt, ...) \
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do { } while (0)
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#endif
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static void rtas_display_character(PowerPCCPU *cpu, sPAPREnvironment *spapr,
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static void rtas_display_character(PowerPCCPU *cpu, sPAPREnvironment *spapr,
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uint32_t token, uint32_t nargs,
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uint32_t token, uint32_t nargs,
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@ -295,6 +307,76 @@ static void rtas_get_power_level(PowerPCCPU *cpu, sPAPREnvironment *spapr,
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rtas_st(rets, 1, 100);
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rtas_st(rets, 1, 100);
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}
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}
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static bool sensor_type_is_dr(uint32_t sensor_type)
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{
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switch (sensor_type) {
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case RTAS_SENSOR_TYPE_ISOLATION_STATE:
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case RTAS_SENSOR_TYPE_DR:
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case RTAS_SENSOR_TYPE_ALLOCATION_STATE:
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return true;
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}
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return false;
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}
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static void rtas_set_indicator(PowerPCCPU *cpu, sPAPREnvironment *spapr,
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uint32_t token, uint32_t nargs,
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target_ulong args, uint32_t nret,
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target_ulong rets)
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{
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uint32_t sensor_type;
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uint32_t sensor_index;
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uint32_t sensor_state;
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sPAPRDRConnector *drc;
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sPAPRDRConnectorClass *drck;
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if (nargs != 3 || nret != 1) {
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rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
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return;
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}
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sensor_type = rtas_ld(args, 0);
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sensor_index = rtas_ld(args, 1);
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sensor_state = rtas_ld(args, 2);
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if (!sensor_type_is_dr(sensor_type)) {
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goto out_unimplemented;
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}
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/* if this is a DR sensor we can assume sensor_index == drc_index */
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drc = spapr_dr_connector_by_index(sensor_index);
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if (!drc) {
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DPRINTF("rtas_set_indicator: invalid sensor/DRC index: %xh\n",
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sensor_index);
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rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
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return;
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}
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drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
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switch (sensor_type) {
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case RTAS_SENSOR_TYPE_ISOLATION_STATE:
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drck->set_isolation_state(drc, sensor_state);
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break;
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case RTAS_SENSOR_TYPE_DR:
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drck->set_indicator_state(drc, sensor_state);
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break;
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case RTAS_SENSOR_TYPE_ALLOCATION_STATE:
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drck->set_allocation_state(drc, sensor_state);
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break;
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default:
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goto out_unimplemented;
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}
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rtas_st(rets, 0, RTAS_OUT_SUCCESS);
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return;
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out_unimplemented:
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/* currently only DR-related sensors are implemented */
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DPRINTF("rtas_set_indicator: sensor/indicator not implemented: %d\n",
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sensor_type);
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rtas_st(rets, 0, RTAS_OUT_NOT_SUPPORTED);
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}
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static struct rtas_call {
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static struct rtas_call {
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const char *name;
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const char *name;
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spapr_rtas_fn fn;
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spapr_rtas_fn fn;
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@ -424,6 +506,8 @@ static void core_rtas_register_types(void)
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rtas_set_power_level);
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rtas_set_power_level);
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spapr_rtas_register(RTAS_GET_POWER_LEVEL, "get-power-level",
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spapr_rtas_register(RTAS_GET_POWER_LEVEL, "get-power-level",
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rtas_get_power_level);
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rtas_get_power_level);
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spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator",
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rtas_set_indicator);
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}
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}
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type_init(core_rtas_register_types)
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type_init(core_rtas_register_types)
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@ -430,6 +430,17 @@ int spapr_allocate_irq_block(int num, bool lsi, bool msi);
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#define RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE 42
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#define RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE 42
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#define RTAS_SYSPARM_UUID 48
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#define RTAS_SYSPARM_UUID 48
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/* RTAS indicator/sensor types
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*
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* as defined by PAPR+ 2.7 7.3.5.4, Table 41
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*
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* NOTE: currently only DR-related sensors are implemented here
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*/
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#define RTAS_SENSOR_TYPE_ISOLATION_STATE 9001
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#define RTAS_SENSOR_TYPE_DR 9002
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#define RTAS_SENSOR_TYPE_ALLOCATION_STATE 9003
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#define RTAS_SENSOR_TYPE_ENTITY_SENSE RTAS_SENSOR_TYPE_ALLOCATION_STATE
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/* Possible values for the platform-processor-diagnostics-run-mode parameter
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/* Possible values for the platform-processor-diagnostics-run-mode parameter
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* of the RTAS ibm,get-system-parameter call.
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* of the RTAS ibm,get-system-parameter call.
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*/
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*/
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