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spapr: Generate FDT fragment for CPUs at configure connector time

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Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155059666839.1466090.3833376527523126752.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2019-02-19 18:17:48 +01:00 committed by David Gibson
parent 62d38c9bd3
commit 345b12b99e
3 changed files with 26 additions and 29 deletions
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52
hw/ppc/spapr.c
View file

@ -3636,27 +3636,6 @@ out:
error_propagate(errp, local_err);
}
static void *spapr_populate_hotplug_cpu_dt(CPUState *cs, int *fdt_offset,
sPAPRMachineState *spapr)
{
PowerPCCPU *cpu = POWERPC_CPU(cs);
DeviceClass *dc = DEVICE_GET_CLASS(cs);
int id = spapr_get_vcpu_id(cpu);
void *fdt;
int offset, fdt_size;
char *nodename;
fdt = create_device_tree(&fdt_size);
nodename = g_strdup_printf("%s@%x", dc->fw_name, id);
offset = fdt_add_subnode(fdt, 0, nodename);
spapr_populate_cpu_dt(cs, fdt, offset, spapr);
g_free(nodename);
*fdt_offset = offset;
return fdt;
}
/* Callback to be called during DRC release. */
void spapr_core_release(DeviceState *dev)
{
@ -3717,6 +3696,27 @@ void spapr_core_unplug_request(HotplugHandler *hotplug_dev, DeviceState *dev,
spapr_hotplug_req_remove_by_index(drc);
}
int spapr_core_dt_populate(sPAPRDRConnector *drc, sPAPRMachineState *spapr,
void *fdt, int *fdt_start_offset, Error **errp)
{
sPAPRCPUCore *core = SPAPR_CPU_CORE(drc->dev);
CPUState *cs = CPU(core->threads[0]);
PowerPCCPU *cpu = POWERPC_CPU(cs);
DeviceClass *dc = DEVICE_GET_CLASS(cs);
int id = spapr_get_vcpu_id(cpu);
char *nodename;
int offset;
nodename = g_strdup_printf("%s@%x", dc->fw_name, id);
offset = fdt_add_subnode(fdt, 0, nodename);
g_free(nodename);
spapr_populate_cpu_dt(cs, fdt, offset, spapr);
*fdt_start_offset = offset;
return 0;
}
static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp)
{
@ -3725,7 +3725,7 @@ static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
sPAPRCPUCore *core = SPAPR_CPU_CORE(OBJECT(dev));
CPUCore *cc = CPU_CORE(dev);
CPUState *cs = CPU(core->threads[0]);
CPUState *cs;
sPAPRDRConnector *drc;
Error *local_err = NULL;
CPUArchId *core_slot;
@ -3744,14 +3744,8 @@ static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
g_assert(drc || !mc->has_hotpluggable_cpus);
if (drc) {
void *fdt;
int fdt_offset;
fdt = spapr_populate_hotplug_cpu_dt(cs, &fdt_offset, spapr);
spapr_drc_attach(drc, dev, fdt, fdt_offset, &local_err);
spapr_drc_attach(drc, dev, NULL, 0, &local_err);
if (local_err) {
g_free(fdt);
error_propagate(errp, local_err);
return;
}

1
hw/ppc/spapr_drc.c
View file

@ -680,6 +680,7 @@ static void spapr_drc_cpu_class_init(ObjectClass *k, void *data)
drck->typename = "CPU";
drck->drc_name_prefix = "CPU ";
drck->release = spapr_core_release;
drck->dt_populate = spapr_core_dt_populate;
}
static void spapr_drc_pci_class_init(ObjectClass *k, void *data)

2
include/hw/ppc/spapr.h
View file

@ -766,6 +766,8 @@ int spapr_max_server_number(sPAPRMachineState *spapr);
/* DRC callbacks. */
void spapr_core_release(DeviceState *dev);
int spapr_core_dt_populate(sPAPRDRConnector *drc, sPAPRMachineState *spapr,
void *fdt, int *fdt_start_offset, Error **errp);
void spapr_lmb_release(DeviceState *dev);
int spapr_lmb_dt_populate(sPAPRDRConnector *drc, sPAPRMachineState *spapr,
void *fdt, int *fdt_start_offset, Error **errp);