From: Bibo Mao <maobibo@loongson.cn>
Date: Wed, 18 Sep 2024 03:50:49 +0000 (+0800)
Subject: hw/intc/loongarch_pch: Add pre_save and post_load interfaces
X-Git-Tag: v10.0.0-rc0~112^2~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=36d31cf812848ee65ab03ca901e7b140f5538a7a;p=thirdparty%2Fqemu.git

hw/intc/loongarch_pch: Add pre_save and post_load interfaces

Add vmstate pre_save and post_load interfaces, which can be used
by pic kvm driver in future.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
---

diff --git a/hw/intc/loongarch_pic_common.c b/hw/intc/loongarch_pic_common.c
index f97e38368df..bcb6b7b3fca 100644
--- a/hw/intc/loongarch_pic_common.c
+++ b/hw/intc/loongarch_pic_common.c
@@ -10,6 +10,30 @@
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
 
+static int loongarch_pic_pre_save(void *opaque)
+{
+    LoongArchPICCommonState *s = (LoongArchPICCommonState *)opaque;
+    LoongArchPICCommonClass *lpcc = LOONGARCH_PIC_COMMON_GET_CLASS(s);
+
+    if (lpcc->pre_save) {
+        return lpcc->pre_save(s);
+    }
+
+    return 0;
+}
+
+static int loongarch_pic_post_load(void *opaque, int version_id)
+{
+    LoongArchPICCommonState *s = (LoongArchPICCommonState *)opaque;
+    LoongArchPICCommonClass *lpcc = LOONGARCH_PIC_COMMON_GET_CLASS(s);
+
+    if (lpcc->post_load) {
+        return lpcc->post_load(s, version_id);
+    }
+
+    return 0;
+}
+
 static void loongarch_pic_common_realize(DeviceState *dev, Error **errp)
 {
     LoongArchPICCommonState *s = LOONGARCH_PIC_COMMON(dev);
@@ -29,6 +53,8 @@ static const VMStateDescription vmstate_loongarch_pic_common = {
     .name = "loongarch_pch_pic",
     .version_id = 1,
     .minimum_version_id = 1,
+    .pre_save  = loongarch_pic_pre_save,
+    .post_load = loongarch_pic_post_load,
     .fields = (const VMStateField[]) {
         VMSTATE_UINT64(int_mask, LoongArchPICCommonState),
         VMSTATE_UINT64(htmsi_en, LoongArchPICCommonState),
diff --git a/include/hw/intc/loongarch_pic_common.h b/include/hw/intc/loongarch_pic_common.h
index 0a1a28063c0..43cce489786 100644
--- a/include/hw/intc/loongarch_pic_common.h
+++ b/include/hw/intc/loongarch_pic_common.h
@@ -76,5 +76,7 @@ struct LoongArchPICCommonClass {
     SysBusDeviceClass parent_class;
 
     DeviceRealize parent_realize;
+    int (*pre_save)(LoongArchPICCommonState *s);
+    int (*post_load)(LoongArchPICCommonState *s, int version_id);
 };
 #endif  /* HW_LOONGARCH_PIC_COMMON_H */