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[Qemu-devel] [PULL 22/40] spapr_rtas: add set-indicator RTAS interface
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PULL 22/40] spapr_rtas: add set-indicator RTAS interface |
Date: |
Wed, 3 Jun 2015 23:45:23 +0200 |
From: Mike Day <address@hidden>
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 <address@hidden>
Signed-off-by: Michael Roth <address@hidden>
Reviewed-by: David Gibson <address@hidden>
Signed-off-by: David Gibson <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>
---
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 <libfdt.h>
+#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 317feb6..8810911 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.
*/
--
1.8.1.4
- [Qemu-devel] [PULL 14/40] spapr_iommu: Give unique QOM name to TCE table, (continued)
- [Qemu-devel] [PULL 14/40] spapr_iommu: Give unique QOM name to TCE table, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 16/40] pseries: Add pseries-2.4 machine type, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 13/40] spapr_pci: Rework device-tree rendering, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 38/40] tci: do not use CPUArchState in tcg-target.h, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 37/40] Add David Gibson for sPAPR in MAINTAINERS file, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 35/40] spapr: override default ram size to 512MB, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 29/40] spapr_pci: add dynamic-reconfiguration option for spapr-pci-host-bridge, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 17/40] hw/ppc/spapr: Fix error message when firmware could not be loaded, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 21/40] spapr_rtas: add get/set-power-level RTAS interfaces, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 11/40] spapr_pci: Make find_phb()/find_dev() public, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 22/40] spapr_rtas: add set-indicator RTAS interface,
Alexander Graf <=
- [Qemu-devel] [PULL 27/40] spapr_events: event-scan RTAS interface, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 39/40] tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 25/40] spapr_rtas: add ibm, configure-connector RTAS interface, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 40/40] softmmu: support up to 12 MMU modes, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 34/40] machine: add default_ram_size to machine class, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 36/40] pseries: Enable in-kernel H_LOGICAL_CI_{LOAD, STORE} implementations, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 28/40] spapr_drc: add spapr_drc_populate_dt(), Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 19/40] docs: add sPAPR hotplug/dynamic-reconfiguration documentation, Alexander Graf, 2015/06/03
- [Qemu-devel] [PULL 26/40] spapr_events: re-use EPOW event infrastructure for hotplug events, Alexander Graf, 2015/06/03