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-rw-r--r--hw/hw.h18
-rw-r--r--savevm.c21
2 files changed, 39 insertions, 0 deletions
diff --git a/hw/hw.h b/hw/hw.h
index 874fe98ffe..02392cacf8 100644
--- a/hw/hw.h
+++ b/hw/hw.h
@@ -285,6 +285,7 @@ enum VMStateFlags {
VMS_ARRAY = 0x004,
VMS_STRUCT = 0x008,
VMS_VARRAY = 0x010, /* Array with size in another field */
+ VMS_BUFFER = 0x020, /* static sized buffer */
};
typedef struct {
@@ -321,6 +322,7 @@ extern const VMStateInfo vmstate_info_uint32;
extern const VMStateInfo vmstate_info_uint64;
extern const VMStateInfo vmstate_info_timer;
+extern const VMStateInfo vmstate_info_buffer;
#define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
#define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
@@ -389,6 +391,16 @@ extern const VMStateInfo vmstate_info_timer;
+ type_check_array(_type,typeof_field(_state, _field),_num) \
}
+#define VMSTATE_STATIC_BUFFER(_field, _state, _version) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .size = sizeof(typeof_field(_state,_field)), \
+ .info = &vmstate_info_buffer, \
+ .flags = VMS_BUFFER, \
+ .offset = offsetof(_state, _field) \
+ + type_check_array(uint8_t,typeof_field(_state, _field),sizeof(typeof_field(_state,_field))) \
+}
+
/* _f : field name
_f_n : num of elements field_name
_n : num of elements
@@ -459,6 +471,12 @@ extern const VMStateInfo vmstate_info_timer;
#define VMSTATE_INT32_VARRAY(_f, _s, _f_n) \
VMSTATE_INT32_VARRAY_V(_f, _s, _f_n, 0)
+#define VMSTATE_BUFFER_V(_f, _s, _v) \
+ VMSTATE_STATIC_BUFFER(_f, _s, _v)
+
+#define VMSTATE_BUFFER(_f, _s) \
+ VMSTATE_STATIC_BUFFER(_f, _s, 0)
+
#define VMSTATE_END_OF_LIST() \
{}
diff --git a/savevm.c b/savevm.c
index 0290c2e7e9..68fe924d43 100644
--- a/savevm.c
+++ b/savevm.c
@@ -848,6 +848,27 @@ const VMStateInfo vmstate_info_timer = {
.put = put_timer,
};
+/* uint8_t buffers */
+
+static int get_buffer(QEMUFile *f, void *pv, size_t size)
+{
+ uint8_t *v = pv;
+ qemu_get_buffer(f, v, size);
+ return 0;
+}
+
+static void put_buffer(QEMUFile *f, const void *pv, size_t size)
+{
+ uint8_t *v = (void *)pv;
+ qemu_put_buffer(f, v, size);
+}
+
+const VMStateInfo vmstate_info_buffer = {
+ .name = "buffer",
+ .get = get_buffer,
+ .put = put_buffer,
+};
+
typedef struct SaveStateEntry {
char idstr[256];
int instance_id;