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spapr: Add a return value to spapr_set_vcpu_id()

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As recommended in "qapi/error.h", return true on success and false on
failure. This allows to reduce error propagation overhead in the callers.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-11-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2020-09-14 14:35:00 +02:00 committed by David Gibson
parent ebd226d221
commit cfdc527473
3 changed files with 5 additions and 7 deletions
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5
hw/ppc/spapr.c
View File

@ -4286,7 +4286,7 @@ int spapr_get_vcpu_id(PowerPCCPU *cpu)
return cpu->vcpu_id;
}
void spapr_set_vcpu_id(PowerPCCPU *cpu, int cpu_index, Error **errp)
bool spapr_set_vcpu_id(PowerPCCPU *cpu, int cpu_index, Error **errp)
{
SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
MachineState *ms = MACHINE(spapr);
@ -4299,10 +4299,11 @@ void spapr_set_vcpu_id(PowerPCCPU *cpu, int cpu_index, Error **errp)
error_append_hint(errp, "Adjust the number of cpus to %d "
"or try to raise the number of threads per core\n",
vcpu_id * ms->smp.threads / spapr->vsmt);
return;
return false;
}
cpu->vcpu_id = vcpu_id;
return true;
}
PowerPCCPU *spapr_find_cpu(int vcpu_id)

5
hw/ppc/spapr_cpu_core.c
View File

@ -262,7 +262,6 @@ static PowerPCCPU *spapr_create_vcpu(SpaprCpuCore *sc, int i, Error **errp)
char *id;
CPUState *cs;
PowerPCCPU *cpu;
Error *local_err = NULL;
obj = object_new(scc->cpu_type);
@ -274,8 +273,7 @@ static PowerPCCPU *spapr_create_vcpu(SpaprCpuCore *sc, int i, Error **errp)
*/
cs->start_powered_off = true;
cs->cpu_index = cc->core_id + i;
spapr_set_vcpu_id(cpu, cs->cpu_index, &local_err);
if (local_err) {
if (!spapr_set_vcpu_id(cpu, cs->cpu_index, errp)) {
goto err;
}
@ -292,7 +290,6 @@ static PowerPCCPU *spapr_create_vcpu(SpaprCpuCore *sc, int i, Error **errp)
err:
object_unref(obj);
error_propagate(errp, local_err);
return NULL;
}

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

@ -902,7 +902,7 @@ void spapr_do_system_reset_on_cpu(CPUState *cs, run_on_cpu_data arg);
#define HTAB_SIZE(spapr) (1ULL << ((spapr)->htab_shift))
int spapr_get_vcpu_id(PowerPCCPU *cpu);
void spapr_set_vcpu_id(PowerPCCPU *cpu, int cpu_index, Error **errp);
bool spapr_set_vcpu_id(PowerPCCPU *cpu, int cpu_index, Error **errp);
PowerPCCPU *spapr_find_cpu(int vcpu_id);
int spapr_caps_pre_load(void *opaque);