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spapr: Simplify error handling in spapr_cpu_core_realize()

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As recommended in "qapi/error.h", add a bool return value to
spapr_realize_vcpu() and use it in spapr_cpu_core_realize()
in order to get rid of the error propagation overhead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-12-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 14:35:01 +02:00 committed by David Gibson
parent cfdc527473
commit a5af92e2e9
1 changed files with 7 additions and 9 deletions
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16
hw/ppc/spapr_cpu_core.c
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@ -227,14 +227,14 @@ static void spapr_cpu_core_unrealize(DeviceState *dev)
g_free(sc->threads);
}
static void spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,
static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,
SpaprCpuCore *sc, Error **errp)
{
CPUPPCState *env = &cpu->env;
CPUState *cs = CPU(cpu);
if (!qdev_realize(DEVICE(cpu), NULL, errp)) {
return;
return false;
}
/* Set time-base frequency to 512 MHz */
@ -245,13 +245,14 @@ static void spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,
if (spapr_irq_cpu_intc_create(spapr, cpu, errp) < 0) {
cpu_remove_sync(CPU(cpu));
return;
return false;
}
if (!sc->pre_3_0_migration) {
vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state,
cpu->machine_data);
}
return true;
}
static PowerPCCPU *spapr_create_vcpu(SpaprCpuCore *sc, int i, Error **errp)
@ -312,7 +313,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
TYPE_SPAPR_MACHINE);
SpaprCpuCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
CPUCore *cc = CPU_CORE(OBJECT(dev));
Error *local_err = NULL;
int i, j;
if (!spapr) {
@ -322,15 +322,14 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
sc->threads = g_new(PowerPCCPU *, cc->nr_threads);
for (i = 0; i < cc->nr_threads; i++) {
sc->threads[i] = spapr_create_vcpu(sc, i, &local_err);
if (local_err) {
sc->threads[i] = spapr_create_vcpu(sc, i, errp);
if (!sc->threads[i]) {
goto err;
}
}
for (j = 0; j < cc->nr_threads; j++) {
spapr_realize_vcpu(sc->threads[j], spapr, sc, &local_err);
if (local_err) {
if (!spapr_realize_vcpu(sc->threads[j], spapr, sc, errp)) {
goto err_unrealize;
}
}
@ -347,7 +346,6 @@ err:
spapr_delete_vcpu(sc->threads[i], sc);
}
g_free(sc->threads);
error_propagate(errp, local_err);
}
static Property spapr_cpu_core_properties[] = {