Add the unrealize function to the Loongarch CPU for cpu hot-(un)plug
Cc: "Bernhard Beschow" <[email protected]>
Cc: "Salil Mehta" <[email protected]>
Cc: "Salil Mehta" <[email protected]>
Cc: Xiaojuan Yang <[email protected]>
Cc: Song Gao <[email protected]>
Cc: "Michael S. Tsirkin" <[email protected]>
Cc: Igor Mammedov <[email protected]>
Cc: Ani Sinha <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Eduardo Habkost <[email protected]>
Cc: Marcel Apfelbaum <[email protected]>
Cc: "Philippe Mathieu-Daudé" <[email protected]>
Cc: Yanan Wang <[email protected]>
Cc: "Daniel P. Berrangé" <[email protected]>
Cc: Peter Xu <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Bibo Mao <[email protected]>
Signed-off-by: xianglai li <[email protected]>
---
target/loongarch/cpu.c | 20 ++++++++++++++++++++
target/loongarch/cpu.h | 1 +
2 files changed, 21 insertions(+)
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index 40b856554f..92fb23704f 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -576,6 +576,22 @@ static void loongarch_cpu_realizefn(DeviceState *dev,
Error **errp)
lacc->parent_realize(dev, errp);
}
+static void loongarch_cpu_unrealizefn(DeviceState *dev)
+{
+ LoongArchCPUClass *mcc = LOONGARCH_CPU_GET_CLASS(dev);
+
+#ifndef CONFIG_USER_ONLY
+ LoongArchCPU *cpu = LOONGARCH_CPU(dev);
+ CPULoongArchState *env = &cpu->env;
+
+ cpu_remove_sync(CPU(dev));
+ address_space_destroy(&env->address_space_iocsr);
+ memory_region_del_subregion(&env->system_iocsr, &env->iocsr_mem);
+#endif
+
+ mcc->parent_unrealize(dev);
+}
+
#ifndef CONFIG_USER_ONLY
static void loongarch_qemu_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
@@ -756,6 +772,9 @@ static void loongarch_cpu_class_init(ObjectClass *c, void
*data)
device_class_set_props(dc, loongarch_cpu_properties);
device_class_set_parent_realize(dc, loongarch_cpu_realizefn,
&lacc->parent_realize);
+ device_class_set_parent_unrealize(dc, loongarch_cpu_unrealizefn,
+ &lacc->parent_unrealize);
+
resettable_class_set_parent_phases(rc, NULL, loongarch_cpu_reset_hold,
NULL,
&lacc->parent_phases);
@@ -777,6 +796,7 @@ static void loongarch_cpu_class_init(ObjectClass *c, void
*data)
#ifdef CONFIG_TCG
cc->tcg_ops = &loongarch_tcg_ops;
#endif
+ dc->user_creatable = true;
}
static gchar *loongarch32_gdb_arch_name(CPUState *cs)
diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h
index 838492f014..ec4a9ff166 100644
--- a/target/loongarch/cpu.h
+++ b/target/loongarch/cpu.h
@@ -414,6 +414,7 @@ struct LoongArchCPUClass {
/*< public >*/
DeviceRealize parent_realize;
+ DeviceUnrealize parent_unrealize;
ResettablePhases parent_phases;
};
--
2.39.1
