From f5d3696325bca35d6202f26886f1a182ff01a40e Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Thu, 25 Jun 2015 13:44:30 +0200 Subject: [PATCH 005/100] spapr_rtas: add set-indicator RTAS interface Message-id: <1435239881-28541-4-git-send-email-lvivier@redhat.com> Patchwork-id: 66482 O-Subject: [RHEL7.2 qemu-kvm-rhev PATCH 03/14] spapr_rtas: add set-indicator RTAS interface Bugzilla: 1172478 RH-Acked-by: Michael S. Tsirkin RH-Acked-by: Thomas Huth RH-Acked-by: David Gibson From: Mike Day 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 Signed-off-by: Michael Roth Reviewed-by: David Gibson Signed-off-by: David Gibson Signed-off-by: Alexander Graf (cherry picked from commit 8c8639df32f19d5ca9bf6a823ac83e298a188fd1) Signed-off-by: Laurent Vivier Signed-off-by: Miroslav Rezanina --- hw/ppc/spapr_rtas.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/hw/ppc/spapr.h | 11 +++++++ 2 files changed, 95 insertions(+) diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index d7694cd..6c741fa 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -35,6 +35,18 @@ #include "qapi-event.h" #include +#include "hw/ppc/spapr_drc.h" + +/* #define DEBUG_SPAPR */ + +#ifdef DEBUG_SPAPR +#define DPRINTF(fmt, ...) \ + do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) +#else +#define DPRINTF(fmt, ...) \ + do { } while (0) +#endif + static void rtas_display_character(PowerPCCPU *cpu, sPAPREnvironment *spapr, uint32_t token, uint32_t nargs, @@ -295,6 +307,76 @@ static void rtas_get_power_level(PowerPCCPU *cpu, sPAPREnvironment *spapr, rtas_st(rets, 1, 100); } +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, sPAPREnvironment *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; + sPAPRDRConnector *drc; + sPAPRDRConnectorClass *drck; + + if (nargs != 3 || nret != 1) { + rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); + return; + } + + 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) { + DPRINTF("rtas_set_indicator: invalid sensor/DRC index: %xh\n", + sensor_index); + rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); + return; + } + drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); + + switch (sensor_type) { + case RTAS_SENSOR_TYPE_ISOLATION_STATE: + drck->set_isolation_state(drc, sensor_state); + break; + case RTAS_SENSOR_TYPE_DR: + drck->set_indicator_state(drc, sensor_state); + break; + case RTAS_SENSOR_TYPE_ALLOCATION_STATE: + drck->set_allocation_state(drc, sensor_state); + break; + default: + goto out_unimplemented; + } + + rtas_st(rets, 0, RTAS_OUT_SUCCESS); + return; + +out_unimplemented: + /* currently only DR-related sensors are implemented */ + DPRINTF("rtas_set_indicator: sensor/indicator not implemented: %d\n", + sensor_type); + rtas_st(rets, 0, RTAS_OUT_NOT_SUPPORTED); +} + static struct rtas_call { const char *name; spapr_rtas_fn fn; @@ -424,6 +506,8 @@ static void core_rtas_register_types(void) rtas_set_power_level); spapr_rtas_register(RTAS_GET_POWER_LEVEL, "get-power-level", rtas_get_power_level); + spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator", + rtas_set_indicator); } type_init(core_rtas_register_types) diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index af71e8b..a13e777 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -430,6 +430,17 @@ int spapr_allocate_irq_block(int num, bool lsi, bool msi); #define RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE 42 #define RTAS_SYSPARM_UUID 48 +/* RTAS indicator/sensor types + * + * as defined by PAPR+ 2.7 7.3.5.4, Table 41 + * + * NOTE: currently only DR-related sensors are implemented here + */ +#define RTAS_SENSOR_TYPE_ISOLATION_STATE 9001 +#define RTAS_SENSOR_TYPE_DR 9002 +#define RTAS_SENSOR_TYPE_ALLOCATION_STATE 9003 +#define RTAS_SENSOR_TYPE_ENTITY_SENSE RTAS_SENSOR_TYPE_ALLOCATION_STATE + /* Possible values for the platform-processor-diagnostics-run-mode parameter * of the RTAS ibm,get-system-parameter call. */ -- 1.8.3.1