Add sPAPR specific abastract CPU core device that is based on generic
CPU core device. Use this as base type to create sPAPR CPU specific core
devices.
TODO:
- Add core types for other remaining CPU types
- Handle CPU model alias correctly
Signed-off-by: Bharata B Rao <bhar...@linux.vnet.ibm.com>
---
hw/ppc/Makefile.objs | 1 +
hw/ppc/spapr.c | 3 +-
hw/ppc/spapr_cpu_core.c | 168 ++++++++++++++++++++++++++++++++++++++++
include/hw/ppc/spapr.h | 1 +
include/hw/ppc/spapr_cpu_core.h | 28 +++++++
5 files changed, 199 insertions(+), 2 deletions(-)
create mode 100644 hw/ppc/spapr_cpu_core.c
create mode 100644 include/hw/ppc/spapr_cpu_core.h
diff --git a/hw/ppc/Makefile.objs b/hw/ppc/Makefile.objs
index c1ffc77..5cc6608 100644
--- a/hw/ppc/Makefile.objs
+++ b/hw/ppc/Makefile.objs
@@ -4,6 +4,7 @@ obj-y += ppc.o ppc_booke.o
obj-$(CONFIG_PSERIES) += spapr.o spapr_vio.o spapr_events.o
obj-$(CONFIG_PSERIES) += spapr_hcall.o spapr_iommu.o spapr_rtas.o
obj-$(CONFIG_PSERIES) += spapr_pci.o spapr_rtc.o spapr_drc.o spapr_rng.o
+obj-$(CONFIG_PSERIES) += spapr_cpu_core.o
ifeq ($(CONFIG_PCI)$(CONFIG_PSERIES)$(CONFIG_LINUX), yyy)
obj-y += spapr_pci_vfio.o
endif
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index b69995e..95db047 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1605,8 +1605,7 @@ static void spapr_boot_set(void *opaque, const char
*boot_device,
machine->boot_order = g_strdup(boot_device);
}
-static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu,
- Error **errp)
+void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu, Error **errp)
{
CPUPPCState *env = &cpu->env;
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
new file mode 100644
index 0000000..af63ed9
--- /dev/null
+++ b/hw/ppc/spapr_cpu_core.c
@@ -0,0 +1,168 @@
+/*
+ * sPAPR CPU core device, acts as container of CPU thread devices.
+ *
+ * Copyright (C) 2016 Bharata B Rao <bhar...@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#include "hw/cpu/core.h"
+#include "hw/ppc/spapr_cpu_core.h"
+#include "hw/ppc/spapr.h"
+#include "hw/boards.h"
+#include "qapi/error.h"
+#include <sysemu/cpus.h>
+#include "target-ppc/kvm_ppc.h"
+
+static void spapr_cpu_core_create_threads(DeviceState *dev, int threads,
+ Error **errp)
+{
+ int i;
+ Error *local_err = NULL;
+ sPAPRCPUCore *core = SPAPR_CPU_CORE(OBJECT(dev));
+
+ for (i = 0; i < threads; i++) {
+ char id[32];
+
+ object_initialize(&core->threads[i], sizeof(core->threads[i]),
+ object_class_get_name(core->cpu));
+ snprintf(id, sizeof(id), "thread[%d]", i);
+ object_property_add_child(OBJECT(core), id, OBJECT(&core->threads[i]),
+ &local_err);
+ if (local_err) {
+ goto err;
+ }
+ }
+ return;
+
+err:
+ while (--i) {
+ object_unparent(OBJECT(&core->threads[i]));
+ }
+ error_propagate(errp, local_err);
+}
+
+static int spapr_cpu_core_realize_child(Object *child, void *opaque)
+{
+ Error **errp = opaque;
+ sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
+ CPUState *cs = CPU(child);
+ PowerPCCPU *cpu = POWERPC_CPU(cs);
+
+ object_property_set_bool(child, true, "realized", errp);
+ if (*errp) {
+ return 1;
+ }
+
+ spapr_cpu_init(spapr, cpu, errp);
+ if (*errp) {
+ return 1;
+ }
+ return 0;
+}
+
+static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
+{
+ sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
+ CPUCore *cc = CPU_CORE(OBJECT(dev));
+ Error *local_err = NULL;
+
+ sc->threads = g_new0(PowerPCCPU, cc->threads);
+ spapr_cpu_core_create_threads(dev, cc->threads, &local_err);
+ if (local_err) {
+ goto out;
+ }
+ object_child_foreach(OBJECT(dev), spapr_cpu_core_realize_child,
&local_err);
+
+out:
+ if (local_err) {
+ g_free(sc->threads);
+ error_propagate(errp, local_err);
+ }
+}
+
+static void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ dc->realize = spapr_cpu_core_realize;
+}
+
+/*
+ * instance_init routines from different flavours of sPAPR CPU cores.
+ * TODO: Add support for 'host' core type.
+ */
+#define SPAPR_CPU_CORE_INITFN(_type, _fname) \
+static void glue(glue(spapr_cpu_core_, _fname), _initfn(Object *obj)) \
+{ \
+ sPAPRCPUCore *core = SPAPR_CPU_CORE(obj); \
+ char *name = g_strdup_printf("%s-" TYPE_POWERPC_CPU, stringify(_type)); \
+ ObjectClass *oc = object_class_by_name(name); \
+ g_assert(oc); \
+ g_free((void *)name); \
+ core->cpu = oc; \
+}
+
+SPAPR_CPU_CORE_INITFN(POWER7_v2.3, POWER7);
+SPAPR_CPU_CORE_INITFN(POWER7+_v2.1, POWER7plus);
+SPAPR_CPU_CORE_INITFN(POWER8_v2.0, POWER8);
+SPAPR_CPU_CORE_INITFN(POWER8E_v2.1, POWER8E);
+
+typedef struct SPAPRCoreInfo {
+ const char *name;
+ void (*initfn)(Object *obj);
+} SPAPRCoreInfo;
+
+static const SPAPRCoreInfo spapr_cores[] = {
+ /* POWER7 and aliases */
+ { .name = "POWER7_v2.3", .initfn = spapr_cpu_core_POWER7_initfn },
+ { .name = "POWER7", .initfn = spapr_cpu_core_POWER7_initfn },
+
+ /* POWER7+ and aliases */
+ { .name = "POWER7+_v2.1", .initfn = spapr_cpu_core_POWER7plus_initfn },
+ { .name = "POWER7+", .initfn = spapr_cpu_core_POWER7plus_initfn },
+
+ /* POWER8 and aliases */
+ { .name = "POWER8_v2.0", .initfn = spapr_cpu_core_POWER8_initfn },
+ { .name = "POWER8", .initfn = spapr_cpu_core_POWER8_initfn },
+ { .name = "power8", .initfn = spapr_cpu_core_POWER8_initfn },
+
+ /* POWER8E and aliases */
+ { .name = "POWER8E_v2.1", .initfn = spapr_cpu_core_POWER8E_initfn },
+ { .name = "POWER8E", .initfn = spapr_cpu_core_POWER8E_initfn },
+
+ { .name = NULL }
+};
+
+static void spapr_cpu_core_register(const SPAPRCoreInfo *info)
+{
+ TypeInfo type_info = {
+ .parent = TYPE_SPAPR_CPU_CORE,
+ .instance_size = sizeof(sPAPRCPUCore),
+ .instance_init = info->initfn,
+ };
+
+ type_info.name = g_strdup_printf("%s-" TYPE_SPAPR_CPU_CORE, info->name);
+ type_register(&type_info);
+ g_free((void *)type_info.name);
+}
+
+static const TypeInfo spapr_cpu_core_type_info = {
+ .name = TYPE_SPAPR_CPU_CORE,
+ .parent = TYPE_CPU_CORE,
+ .abstract = true,
+ .instance_size = sizeof(sPAPRCPUCore),
+ .class_init = spapr_cpu_core_class_init,
+};
+
+static void spapr_cpu_core_register_types(void)
+{
+ const SPAPRCoreInfo *info = spapr_cores;
+
+ type_register_static(&spapr_cpu_core_type_info);
+ while (info->name) {
+ spapr_cpu_core_register(info);
+ info++;
+ }
+}
+
+type_init(spapr_cpu_core_register_types)
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 815d5ee..bcd9de6 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -580,6 +580,7 @@ void spapr_hotplug_req_add_by_count(sPAPRDRConnectorType
drc_type,
uint32_t count);
void spapr_hotplug_req_remove_by_count(sPAPRDRConnectorType drc_type,
uint32_t count);
+void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu, Error **errp);
/* rtas-configure-connector state */
struct sPAPRConfigureConnectorState {
diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h
new file mode 100644
index 0000000..b6aa39e
--- /dev/null
+++ b/include/hw/ppc/spapr_cpu_core.h
@@ -0,0 +1,28 @@
+/*
+ * sPAPR CPU core device.
+ *
+ * Copyright (C) 2016 Bharata B Rao <bhar...@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#ifndef HW_SPAPR_CPU_CORE_H
+#define HW_SPAPR_CPU_CORE_H
+
+#include "hw/qdev.h"
+#include "hw/cpu/core.h"
+
+#define TYPE_SPAPR_CPU_CORE "spapr-cpu-core"
+#define SPAPR_CPU_CORE(obj) \
+ OBJECT_CHECK(sPAPRCPUCore, (obj), TYPE_SPAPR_CPU_CORE)
+
+typedef struct sPAPRCPUCore {
+ /*< private >*/
+ CPUCore parent_obj;
+
+ /*< public >*/
+ PowerPCCPU *threads;
+ ObjectClass *cpu;
+} sPAPRCPUCore;
+
+#endif
--
2.1.0
