mirror of
https://github.com/Motorhead1991/qemu.git
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ff09444a88
Add vmstate pre_save interface, which can be used extioi kvm driver in future. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Reviewed-by: Song Gao <gaosong@loongson.cn>
113 lines
3.9 KiB
C
113 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Loongson extioi interrupt controller emulation
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* Copyright (C) 2024 Loongson Technology Corporation Limited
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*/
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#include "qemu/osdep.h"
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#include "qemu/module.h"
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#include "qapi/error.h"
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#include "hw/qdev-properties.h"
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#include "hw/intc/loongarch_extioi_common.h"
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#include "migration/vmstate.h"
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static void loongarch_extioi_common_realize(DeviceState *dev, Error **errp)
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{
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LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)dev;
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if (s->num_cpu == 0) {
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error_setg(errp, "num-cpu must be at least 1");
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return;
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}
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}
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static int loongarch_extioi_common_pre_save(void *opaque)
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{
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LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)opaque;
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LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_GET_CLASS(s);
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if (lecc->pre_save) {
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return lecc->pre_save(s);
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}
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return 0;
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}
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static int loongarch_extioi_common_post_load(void *opaque, int version_id)
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{
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LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)opaque;
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LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_GET_CLASS(s);
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if (lecc->post_load) {
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return lecc->post_load(s, version_id);
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}
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return 0;
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}
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static const VMStateDescription vmstate_extioi_core = {
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.name = "extioi-core",
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.version_id = 1,
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.minimum_version_id = 1,
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.fields = (const VMStateField[]) {
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VMSTATE_UINT32_ARRAY(coreisr, ExtIOICore, EXTIOI_IRQS_GROUP_COUNT),
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VMSTATE_END_OF_LIST()
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}
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};
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static const VMStateDescription vmstate_loongarch_extioi = {
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.name = "loongarch.extioi",
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.version_id = 3,
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.minimum_version_id = 3,
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.pre_save = loongarch_extioi_common_pre_save,
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.post_load = loongarch_extioi_common_post_load,
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.fields = (const VMStateField[]) {
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VMSTATE_UINT32_ARRAY(bounce, LoongArchExtIOICommonState,
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EXTIOI_IRQS_GROUP_COUNT),
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VMSTATE_UINT32_ARRAY(nodetype, LoongArchExtIOICommonState,
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EXTIOI_IRQS_NODETYPE_COUNT / 2),
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VMSTATE_UINT32_ARRAY(enable, LoongArchExtIOICommonState,
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EXTIOI_IRQS / 32),
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VMSTATE_UINT32_ARRAY(isr, LoongArchExtIOICommonState,
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EXTIOI_IRQS / 32),
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VMSTATE_UINT32_ARRAY(ipmap, LoongArchExtIOICommonState,
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EXTIOI_IRQS_IPMAP_SIZE / 4),
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VMSTATE_UINT32_ARRAY(coremap, LoongArchExtIOICommonState,
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EXTIOI_IRQS / 4),
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VMSTATE_STRUCT_VARRAY_POINTER_UINT32(cpu, LoongArchExtIOICommonState,
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num_cpu, vmstate_extioi_core, ExtIOICore),
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VMSTATE_UINT32(features, LoongArchExtIOICommonState),
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VMSTATE_UINT32(status, LoongArchExtIOICommonState),
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VMSTATE_END_OF_LIST()
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}
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};
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static const Property extioi_properties[] = {
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DEFINE_PROP_UINT32("num-cpu", LoongArchExtIOICommonState, num_cpu, 1),
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DEFINE_PROP_BIT("has-virtualization-extension", LoongArchExtIOICommonState,
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features, EXTIOI_HAS_VIRT_EXTENSION, 0),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void loongarch_extioi_common_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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LoongArchExtIOICommonClass *lecc = LOONGARCH_EXTIOI_COMMON_CLASS(klass);
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device_class_set_parent_realize(dc, loongarch_extioi_common_realize,
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&lecc->parent_realize);
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device_class_set_props(dc, extioi_properties);
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dc->vmsd = &vmstate_loongarch_extioi;
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}
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static const TypeInfo loongarch_extioi_common_types[] = {
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{
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.name = TYPE_LOONGARCH_EXTIOI_COMMON,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(LoongArchExtIOICommonState),
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.class_size = sizeof(LoongArchExtIOICommonClass),
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.class_init = loongarch_extioi_common_class_init,
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.abstract = true,
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}
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};
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DEFINE_TYPES(loongarch_extioi_common_types)
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