vmstate: extract declarations out of hw/hw.h

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

7 files changed, 88 insertions, 891 deletions

diff --git a/hw/hid.h b/hw/hid.h
index 9ce03b118c..5315cf7a31 100644
--- a/hw/hid.h
+++ b/hw/hid.h
@@ -1,6 +1,8 @@
 #ifndef QEMU_HID_H
 #define QEMU_HID_H
 
+#include "vmstate.h"
+
 #define HID_MOUSE     1
 #define HID_TABLET    2
 #define HID_KEYBOARD  3
@@ -56,4 +58,25 @@ int hid_pointer_poll(HIDState *hs, uint8_t *buf, int len);
 int hid_keyboard_poll(HIDState *hs, uint8_t *buf, int len);
 int hid_keyboard_write(HIDState *hs, uint8_t *buf, int len);
 
+extern const VMStateDescription vmstate_hid_keyboard_device;
+
+#define VMSTATE_HID_KEYBOARD_DEVICE(_field, _state) {                \
+    .name       = (stringify(_field)),                               \
+    .size       = sizeof(HIDState),                                  \
+    .vmsd       = &vmstate_hid_keyboard_device,                      \
+    .flags      = VMS_STRUCT,                                        \
+    .offset     = vmstate_offset_value(_state, _field, HIDState),    \
+}
+
+extern const VMStateDescription vmstate_hid_ptr_device;
+
+#define VMSTATE_HID_POINTER_DEVICE(_field, _state) {                 \
+    .name       = (stringify(_field)),                               \
+    .size       = sizeof(HIDState),                                  \
+    .vmsd       = &vmstate_hid_ptr_device,                           \
+    .flags      = VMS_STRUCT,                                        \
+    .offset     = vmstate_offset_value(_state, _field, HIDState),    \
+}
+
+
 #endif /* QEMU_HID_H */
diff --git a/hw/hw.h b/hw/hw.h
index 932014af47..e5cb9bf94d 100644
--- a/hw/hw.h
+++ b/hw/hw.h
@@ -10,215 +10,8 @@
 
 #include "ioport.h"
 #include "irq.h"
-
-/* VM Load/Save */
-
-/* This function writes a chunk of data to a file at the given position.
- * The pos argument can be ignored if the file is only being used for
- * streaming.  The handler should try to write all of the data it can.
- */
-typedef int (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf,
-                                    int64_t pos, int size);
-
-/* Read a chunk of data from a file at the given position.  The pos argument
- * can be ignored if the file is only be used for streaming.  The number of
- * bytes actually read should be returned.
- */
-typedef int (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf,
-                                    int64_t pos, int size);
-
-/* Close a file
- *
- * Return negative error number on error, 0 or positive value on success.
- *
- * The meaning of return value on success depends on the specific back-end being
- * used.
- */
-typedef int (QEMUFileCloseFunc)(void *opaque);
-
-/* Called to determine if the file has exceeded it's bandwidth allocation.  The
- * bandwidth capping is a soft limit, not a hard limit.
- */
-typedef int (QEMUFileRateLimit)(void *opaque);
-
-/* Called to change the current bandwidth allocation. This function must return
- * the new actual bandwidth. It should be new_rate if everything goes ok, and
- * the old rate otherwise
- */
-typedef int64_t (QEMUFileSetRateLimit)(void *opaque, int64_t new_rate);
-typedef int64_t (QEMUFileGetRateLimit)(void *opaque);
-
-QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer,
-                         QEMUFileGetBufferFunc *get_buffer,
-                         QEMUFileCloseFunc *close,
-                         QEMUFileRateLimit *rate_limit,
-                         QEMUFileSetRateLimit *set_rate_limit,
-			 QEMUFileGetRateLimit *get_rate_limit);
-QEMUFile *qemu_fopen(const char *filename, const char *mode);
-QEMUFile *qemu_fdopen(int fd, const char *mode);
-QEMUFile *qemu_fopen_socket(int fd);
-QEMUFile *qemu_popen(FILE *popen_file, const char *mode);
-QEMUFile *qemu_popen_cmd(const char *command, const char *mode);
-int qemu_stdio_fd(QEMUFile *f);
-void qemu_fflush(QEMUFile *f);
-int qemu_fclose(QEMUFile *f);
-void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size);
-void qemu_put_byte(QEMUFile *f, int v);
-
-static inline void qemu_put_ubyte(QEMUFile *f, unsigned int v)
-{
-    qemu_put_byte(f, (int)v);
-}
-
-#define qemu_put_sbyte qemu_put_byte
-
-void qemu_put_be16(QEMUFile *f, unsigned int v);
-void qemu_put_be32(QEMUFile *f, unsigned int v);
-void qemu_put_be64(QEMUFile *f, uint64_t v);
-int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size);
-int qemu_get_byte(QEMUFile *f);
-
-static inline unsigned int qemu_get_ubyte(QEMUFile *f)
-{
-    return (unsigned int)qemu_get_byte(f);
-}
-
-#define qemu_get_sbyte qemu_get_byte
-
-unsigned int qemu_get_be16(QEMUFile *f);
-unsigned int qemu_get_be32(QEMUFile *f);
-uint64_t qemu_get_be64(QEMUFile *f);
-int qemu_file_rate_limit(QEMUFile *f);
-int64_t qemu_file_set_rate_limit(QEMUFile *f, int64_t new_rate);
-int64_t qemu_file_get_rate_limit(QEMUFile *f);
-int qemu_file_get_error(QEMUFile *f);
-void qemu_file_set_error(QEMUFile *f, int error);
-
-/* Try to send any outstanding data.  This function is useful when output is
- * halted due to rate limiting or EAGAIN errors occur as it can be used to
- * resume output. */
-void qemu_file_put_notify(QEMUFile *f);
-
-static inline void qemu_put_be64s(QEMUFile *f, const uint64_t *pv)
-{
-    qemu_put_be64(f, *pv);
-}
-
-static inline void qemu_put_be32s(QEMUFile *f, const uint32_t *pv)
-{
-    qemu_put_be32(f, *pv);
-}
-
-static inline void qemu_put_be16s(QEMUFile *f, const uint16_t *pv)
-{
-    qemu_put_be16(f, *pv);
-}
-
-static inline void qemu_put_8s(QEMUFile *f, const uint8_t *pv)
-{
-    qemu_put_byte(f, *pv);
-}
-
-static inline void qemu_get_be64s(QEMUFile *f, uint64_t *pv)
-{
-    *pv = qemu_get_be64(f);
-}
-
-static inline void qemu_get_be32s(QEMUFile *f, uint32_t *pv)
-{
-    *pv = qemu_get_be32(f);
-}
-
-static inline void qemu_get_be16s(QEMUFile *f, uint16_t *pv)
-{
-    *pv = qemu_get_be16(f);
-}
-
-static inline void qemu_get_8s(QEMUFile *f, uint8_t *pv)
-{
-    *pv = qemu_get_byte(f);
-}
-
-// Signed versions for type safety
-static inline void qemu_put_sbuffer(QEMUFile *f, const int8_t *buf, int size)
-{
-    qemu_put_buffer(f, (const uint8_t *)buf, size);
-}
-
-static inline void qemu_put_sbe16(QEMUFile *f, int v)
-{
-    qemu_put_be16(f, (unsigned int)v);
-}
-
-static inline void qemu_put_sbe32(QEMUFile *f, int v)
-{
-    qemu_put_be32(f, (unsigned int)v);
-}
-
-static inline void qemu_put_sbe64(QEMUFile *f, int64_t v)
-{
-    qemu_put_be64(f, (uint64_t)v);
-}
-
-static inline size_t qemu_get_sbuffer(QEMUFile *f, int8_t *buf, int size)
-{
-    return qemu_get_buffer(f, (uint8_t *)buf, size);
-}
-
-static inline int qemu_get_sbe16(QEMUFile *f)
-{
-    return (int)qemu_get_be16(f);
-}
-
-static inline int qemu_get_sbe32(QEMUFile *f)
-{
-    return (int)qemu_get_be32(f);
-}
-
-static inline int64_t qemu_get_sbe64(QEMUFile *f)
-{
-    return (int64_t)qemu_get_be64(f);
-}
-
-static inline void qemu_put_s8s(QEMUFile *f, const int8_t *pv)
-{
-    qemu_put_8s(f, (const uint8_t *)pv);
-}
-
-static inline void qemu_put_sbe16s(QEMUFile *f, const int16_t *pv)
-{
-    qemu_put_be16s(f, (const uint16_t *)pv);
-}
-
-static inline void qemu_put_sbe32s(QEMUFile *f, const int32_t *pv)
-{
-    qemu_put_be32s(f, (const uint32_t *)pv);
-}
-
-static inline void qemu_put_sbe64s(QEMUFile *f, const int64_t *pv)
-{
-    qemu_put_be64s(f, (const uint64_t *)pv);
-}
-
-static inline void qemu_get_s8s(QEMUFile *f, int8_t *pv)
-{
-    qemu_get_8s(f, (uint8_t *)pv);
-}
-
-static inline void qemu_get_sbe16s(QEMUFile *f, int16_t *pv)
-{
-    qemu_get_be16s(f, (uint16_t *)pv);
-}
-
-static inline void qemu_get_sbe32s(QEMUFile *f, int32_t *pv)
-{
-    qemu_get_be32s(f, (uint32_t *)pv);
-}
-
-static inline void qemu_get_sbe64s(QEMUFile *f, int64_t *pv)
-{
-    qemu_get_be64s(f, (uint64_t *)pv);
-}
+#include "qemu-file.h"
+#include "vmstate.h"
 
 #ifdef NEED_CPU_H
 #if TARGET_LONG_BITS == 64
@@ -242,37 +35,6 @@ static inline void qemu_get_sbe64s(QEMUFile *f, int64_t *pv)
 #endif
 #endif
 
-int64_t qemu_ftell(QEMUFile *f);
-int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence);
-
-typedef void SaveSetParamsHandler(int blk_enable, int shared, void * opaque);
-typedef void SaveStateHandler(QEMUFile *f, void *opaque);
-typedef int SaveLiveStateHandler(Monitor *mon, QEMUFile *f, int stage,
-                                 void *opaque);
-typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
-
-int register_savevm(DeviceState *dev,
-                    const char *idstr,
-                    int instance_id,
-                    int version_id,
-                    SaveStateHandler *save_state,
-                    LoadStateHandler *load_state,
-                    void *opaque);
-
-int register_savevm_live(DeviceState *dev,
-                         const char *idstr,
-                         int instance_id,
-                         int version_id,
-                         SaveSetParamsHandler *set_params,
-			 SaveLiveStateHandler *save_live_state,
-                         SaveStateHandler *save_state,
-                         LoadStateHandler *load_state,
-                         void *opaque);
-
-void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
-void register_device_unmigratable(DeviceState *dev, const char *idstr,
-                                                                void *opaque);
-
 typedef void QEMUResetHandler(void *opaque);
 
 void qemu_register_reset(QEMUResetHandler *func, void *opaque);
@@ -284,637 +46,6 @@ typedef int QEMUBootSetHandler(void *opaque, const char *boot_devices);
 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque);
 int qemu_boot_set(const char *boot_devices);
 
-typedef struct VMStateInfo VMStateInfo;
-typedef struct VMStateDescription VMStateDescription;
-
-struct VMStateInfo {
-    const char *name;
-    int (*get)(QEMUFile *f, void *pv, size_t size);
-    void (*put)(QEMUFile *f, void *pv, size_t size);
-};
-
-enum VMStateFlags {
-    VMS_SINGLE           = 0x001,
-    VMS_POINTER          = 0x002,
-    VMS_ARRAY            = 0x004,
-    VMS_STRUCT           = 0x008,
-    VMS_VARRAY_INT32     = 0x010,  /* Array with size in int32_t field*/
-    VMS_BUFFER           = 0x020,  /* static sized buffer */
-    VMS_ARRAY_OF_POINTER = 0x040,
-    VMS_VARRAY_UINT16    = 0x080,  /* Array with size in uint16_t field */
-    VMS_VBUFFER          = 0x100,  /* Buffer with size in int32_t field */
-    VMS_MULTIPLY         = 0x200,  /* multiply "size" field by field_size */
-    VMS_VARRAY_UINT8     = 0x400,  /* Array with size in uint8_t field*/
-    VMS_VARRAY_UINT32    = 0x800,  /* Array with size in uint32_t field*/
-};
-
-typedef struct {
-    const char *name;
-    size_t offset;
-    size_t size;
-    size_t start;
-    int num;
-    size_t num_offset;
-    size_t size_offset;
-    const VMStateInfo *info;
-    enum VMStateFlags flags;
-    const VMStateDescription *vmsd;
-    int version_id;
-    bool (*field_exists)(void *opaque, int version_id);
-} VMStateField;
-
-typedef struct VMStateSubsection {
-    const VMStateDescription *vmsd;
-    bool (*needed)(void *opaque);
-} VMStateSubsection;
-
-struct VMStateDescription {
-    const char *name;
-    int unmigratable;
-    int version_id;
-    int minimum_version_id;
-    int minimum_version_id_old;
-    LoadStateHandler *load_state_old;
-    int (*pre_load)(void *opaque);
-    int (*post_load)(void *opaque, int version_id);
-    void (*pre_save)(void *opaque);
-    VMStateField *fields;
-    const VMStateSubsection *subsections;
-};
-
-extern const VMStateInfo vmstate_info_bool;
-
-extern const VMStateInfo vmstate_info_int8;
-extern const VMStateInfo vmstate_info_int16;
-extern const VMStateInfo vmstate_info_int32;
-extern const VMStateInfo vmstate_info_int64;
-
-extern const VMStateInfo vmstate_info_uint8_equal;
-extern const VMStateInfo vmstate_info_uint16_equal;
-extern const VMStateInfo vmstate_info_int32_equal;
-extern const VMStateInfo vmstate_info_uint32_equal;
-extern const VMStateInfo vmstate_info_int32_le;
-
-extern const VMStateInfo vmstate_info_uint8;
-extern const VMStateInfo vmstate_info_uint16;
-extern const VMStateInfo vmstate_info_uint32;
-extern const VMStateInfo vmstate_info_uint64;
-
-extern const VMStateInfo vmstate_info_timer;
-extern const VMStateInfo vmstate_info_ptimer;
-extern const VMStateInfo vmstate_info_buffer;
-extern const VMStateInfo vmstate_info_unused_buffer;
-
-#define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
-#define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
-
-#define vmstate_offset_value(_state, _field, _type)                  \
-    (offsetof(_state, _field) +                                      \
-     type_check(_type, typeof_field(_state, _field)))
-
-#define vmstate_offset_pointer(_state, _field, _type)                \
-    (offsetof(_state, _field) +                                      \
-     type_check_pointer(_type, typeof_field(_state, _field)))
-
-#define vmstate_offset_array(_state, _field, _type, _num)            \
-    (offsetof(_state, _field) +                                      \
-     type_check_array(_type, typeof_field(_state, _field), _num))
-
-#define vmstate_offset_sub_array(_state, _field, _type, _start)      \
-    (offsetof(_state, _field[_start]))
-
-#define vmstate_offset_buffer(_state, _field)                        \
-    vmstate_offset_array(_state, _field, uint8_t,                    \
-                         sizeof(typeof_field(_state, _field)))
-
-#define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
-    .name         = (stringify(_field)),                             \
-    .version_id   = (_version),                                      \
-    .field_exists = (_test),                                         \
-    .size         = sizeof(_type),                                   \
-    .info         = &(_info),                                        \
-    .flags        = VMS_SINGLE,                                      \
-    .offset       = vmstate_offset_value(_state, _field, _type),     \
-}
-
-#define VMSTATE_POINTER(_field, _state, _version, _info, _type) {    \
-    .name       = (stringify(_field)),                               \
-    .version_id = (_version),                                        \
-    .info       = &(_info),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_SINGLE|VMS_POINTER,                            \
-    .offset     = vmstate_offset_value(_state, _field, _type),       \
-}
-
-#define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) {  \
-    .name       = (stringify(_field)),                               \
-    .info       = &(_info),                                          \
-    .field_exists = (_test),                                         \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_SINGLE|VMS_POINTER,                            \
-    .offset     = vmstate_offset_value(_state, _field, _type),       \
-}
-
-#define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
-    .name       = (stringify(_field)),                               \
-    .version_id = (_version),                                        \
-    .num        = (_num),                                            \
-    .info       = &(_info),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_ARRAY,                                         \
-    .offset     = vmstate_offset_array(_state, _field, _type, _num), \
-}
-
-#define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
-    .name         = (stringify(_field)),                              \
-    .field_exists = (_test),                                          \
-    .num          = (_num),                                           \
-    .info         = &(_info),                                         \
-    .size         = sizeof(_type),                                    \
-    .flags        = VMS_ARRAY,                                        \
-    .offset       = vmstate_offset_array(_state, _field, _type, _num),\
-}
-
-#define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
-    .name       = (stringify(_field)),                               \
-    .version_id = (_version),                                        \
-    .num        = (_num),                                            \
-    .info       = &(_info),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_ARRAY,                                         \
-    .offset     = vmstate_offset_sub_array(_state, _field, _type, _start), \
-}
-
-#define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\
-    .name       = (stringify(_field)),                               \
-    .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
-    .info       = &(_info),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_VARRAY_INT32,                                  \
-    .offset     = offsetof(_state, _field),                          \
-}
-
-#define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
-    .name       = (stringify(_field)),                               \
-    .version_id = (_version),                                        \
-    .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
-    .info       = &(_info),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_VARRAY_INT32|VMS_POINTER,                      \
-    .offset     = vmstate_offset_pointer(_state, _field, _type),     \
-}
-
-#define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\
-    .name       = (stringify(_field)),                               \
-    .version_id = (_version),                                        \
-    .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
-    .info       = &(_info),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_VARRAY_UINT32|VMS_POINTER,                     \
-    .offset     = vmstate_offset_pointer(_state, _field, _type),     \
-}
-
-#define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
-    .name       = (stringify(_field)),                               \
-    .version_id = (_version),                                        \
-    .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
-    .info       = &(_info),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_VARRAY_UINT16,                                 \
-    .offset     = offsetof(_state, _field),                          \
-}
-
-#define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
-    .name         = (stringify(_field)),                             \
-    .version_id   = (_version),                                      \
-    .field_exists = (_test),                                         \
-    .vmsd         = &(_vmsd),                                        \
-    .size         = sizeof(_type),                                   \
-    .flags        = VMS_STRUCT,                                      \
-    .offset       = vmstate_offset_value(_state, _field, _type),     \
-}
-
-#define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) { \
-    .name         = (stringify(_field)),                             \
-    .field_exists = (_test),                                         \
-    .vmsd         = &(_vmsd),                                        \
-    .size         = sizeof(_type),                                   \
-    .flags        = VMS_STRUCT|VMS_POINTER,                          \
-    .offset       = vmstate_offset_value(_state, _field, _type),     \
-}
-
-#define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\
-    .name       = (stringify(_field)),                               \
-    .version_id = (_version),                                        \
-    .num        = (_num),                                            \
-    .info       = &(_info),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_ARRAY|VMS_ARRAY_OF_POINTER,                    \
-    .offset     = vmstate_offset_array(_state, _field, _type, _num), \
-}
-
-#define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \
-    .name         = (stringify(_field)),                             \
-    .num          = (_num),                                          \
-    .field_exists = (_test),                                         \
-    .version_id   = (_version),                                      \
-    .vmsd         = &(_vmsd),                                        \
-    .size         = sizeof(_type),                                   \
-    .flags        = VMS_STRUCT|VMS_ARRAY,                            \
-    .offset       = vmstate_offset_array(_state, _field, _type, _num),\
-}
-
-#define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \
-    .name       = (stringify(_field)),                               \
-    .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \
-    .version_id = (_version),                                        \
-    .vmsd       = &(_vmsd),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_STRUCT|VMS_VARRAY_UINT8,                       \
-    .offset     = offsetof(_state, _field),                          \
-}
-
-#define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \
-    .name       = (stringify(_field)),                               \
-    .version_id = 0,                                                 \
-    .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
-    .size       = sizeof(_type),                                     \
-    .vmsd       = &(_vmsd),                                          \
-    .flags      = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT,       \
-    .offset     = vmstate_offset_pointer(_state, _field, _type),     \
-}
-
-#define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \
-    .name       = (stringify(_field)),                               \
-    .version_id = 0,                                                 \
-    .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
-    .size       = sizeof(_type),                                     \
-    .vmsd       = &(_vmsd),                                          \
-    .flags      = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT,      \
-    .offset     = vmstate_offset_pointer(_state, _field, _type),     \
-}
-
-#define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \
-    .name       = (stringify(_field)),                               \
-    .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
-    .version_id = (_version),                                        \
-    .vmsd       = &(_vmsd),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_STRUCT|VMS_VARRAY_INT32,                       \
-    .offset     = offsetof(_state, _field),                          \
-}
-
-#define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \
-    .name       = (stringify(_field)),                               \
-    .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \
-    .version_id = (_version),                                        \
-    .vmsd       = &(_vmsd),                                          \
-    .size       = sizeof(_type),                                     \
-    .flags      = VMS_STRUCT|VMS_VARRAY_UINT32,                      \
-    .offset     = offsetof(_state, _field),                          \
-}
-
-#define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \
-    .name         = (stringify(_field)),                             \
-    .version_id   = (_version),                                      \
-    .field_exists = (_test),                                         \
-    .size         = (_size - _start),                                \
-    .info         = &vmstate_info_buffer,                            \
-    .flags        = VMS_BUFFER,                                      \
-    .offset       = vmstate_offset_buffer(_state, _field) + _start,  \
-}
-
-#define VMSTATE_BUFFER_MULTIPLY(_field, _state, _version, _test, _start, _field_size, _multiply) { \
-    .name         = (stringify(_field)),                             \
-    .version_id   = (_version),                                      \
-    .field_exists = (_test),                                         \
-    .size_offset  = vmstate_offset_value(_state, _field_size, uint32_t),\
-    .size         = (_multiply),                                      \
-    .info         = &vmstate_info_buffer,                            \
-    .flags        = VMS_VBUFFER|VMS_MULTIPLY,                        \
-    .offset       = offsetof(_state, _field),                        \
-    .start        = (_start),                                        \
-}
-
-#define VMSTATE_VBUFFER(_field, _state, _version, _test, _start, _field_size) { \
-    .name         = (stringify(_field)),                             \
-    .version_id   = (_version),                                      \
-    .field_exists = (_test),                                         \
-    .size_offset  = vmstate_offset_value(_state, _field_size, int32_t),\
-    .info         = &vmstate_info_buffer,                            \
-    .flags        = VMS_VBUFFER|VMS_POINTER,                         \
-    .offset       = offsetof(_state, _field),                        \
-    .start        = (_start),                                        \
-}
-
-#define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _start, _field_size) { \
-    .name         = (stringify(_field)),                             \
-    .version_id   = (_version),                                      \
-    .field_exists = (_test),                                         \
-    .size_offset  = vmstate_offset_value(_state, _field_size, uint32_t),\
-    .info         = &vmstate_info_buffer,                            \
-    .flags        = VMS_VBUFFER|VMS_POINTER,                         \
-    .offset       = offsetof(_state, _field),                        \
-    .start        = (_start),                                        \
-}
-
-#define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) { \
-    .name       = (stringify(_field)),                               \
-    .version_id = (_version),                                        \
-    .size       = (_size),                                           \
-    .info       = &(_info),                                          \
-    .flags      = VMS_BUFFER,                                        \
-    .offset     = offsetof(_state, _field),                          \
-}
-
-#define VMSTATE_UNUSED_BUFFER(_test, _version, _size) {              \
-    .name         = "unused",                                        \
-    .field_exists = (_test),                                         \
-    .version_id   = (_version),                                      \
-    .size         = (_size),                                         \
-    .info         = &vmstate_info_unused_buffer,                     \
-    .flags        = VMS_BUFFER,                                      \
-}
-extern const VMStateDescription vmstate_pci_device;
-
-#define VMSTATE_PCI_DEVICE(_field, _state) {                         \
-    .name       = (stringify(_field)),                               \
-    .size       = sizeof(PCIDevice),                                 \
-    .vmsd       = &vmstate_pci_device,                               \
-    .flags      = VMS_STRUCT,                                        \
-    .offset     = vmstate_offset_value(_state, _field, PCIDevice),   \
-}
-
-#define VMSTATE_PCI_DEVICE_POINTER(_field, _state) {                 \
-    .name       = (stringify(_field)),                               \
-    .size       = sizeof(PCIDevice),                                 \
-    .vmsd       = &vmstate_pci_device,                               \
-    .flags      = VMS_STRUCT|VMS_POINTER,                            \
-    .offset     = vmstate_offset_pointer(_state, _field, PCIDevice), \
-}
-
-extern const VMStateDescription vmstate_pcie_device;
-
-#define VMSTATE_PCIE_DEVICE(_field, _state) {                        \
-    .name       = (stringify(_field)),                               \
-    .version_id = 2,                                                 \
-    .size       = sizeof(PCIDevice),                                 \
-    .vmsd       = &vmstate_pcie_device,                              \
-    .flags      = VMS_STRUCT,                                        \
-    .offset     = vmstate_offset_value(_state, _field, PCIDevice),   \
-}
-
-extern const VMStateDescription vmstate_i2c_slave;
-
-#define VMSTATE_I2C_SLAVE(_field, _state) {                          \
-    .name       = (stringify(_field)),                               \
-    .size       = sizeof(i2c_slave),                                 \
-    .vmsd       = &vmstate_i2c_slave,                                \
-    .flags      = VMS_STRUCT,                                        \
-    .offset     = vmstate_offset_value(_state, _field, i2c_slave),   \
-}
-
-extern const VMStateDescription vmstate_usb_device;
-
-#define VMSTATE_USB_DEVICE(_field, _state) {                         \
-    .name       = (stringify(_field)),                               \
-    .size       = sizeof(USBDevice),                                 \
-    .vmsd       = &vmstate_usb_device,                               \
-    .flags      = VMS_STRUCT,                                        \
-    .offset     = vmstate_offset_value(_state, _field, USBDevice),   \
-}
-
-#define vmstate_offset_macaddr(_state, _field)                       \
-    vmstate_offset_array(_state, _field.a, uint8_t,                \
-                         sizeof(typeof_field(_state, _field)))
-
-#define VMSTATE_MACADDR(_field, _state) {                            \
-    .name       = (stringify(_field)),                               \
-    .size       = sizeof(MACAddr),                                   \
-    .info       = &vmstate_info_buffer,                              \
-    .flags      = VMS_BUFFER,                                        \
-    .offset     = vmstate_offset_macaddr(_state, _field),            \
-}
-
-extern const VMStateDescription vmstate_ptimer;
-
-#define VMSTATE_PTIMER(_field, _state) {                             \
-    .name       = (stringify(_field)),                               \
-    .version_id = (1),                                               \
-    .vmsd       = &vmstate_ptimer,                                   \
-    .size       = sizeof(ptimer_state *),                            \
-    .flags      = VMS_STRUCT|VMS_POINTER,                            \
-    .offset     = vmstate_offset_pointer(_state, _field, ptimer_state), \
-}
-
-extern const VMStateDescription vmstate_hid_keyboard_device;
-
-#define VMSTATE_HID_KEYBOARD_DEVICE(_field, _state) {                \
-    .name       = (stringify(_field)),                               \
-    .size       = sizeof(HIDState),                                  \
-    .vmsd       = &vmstate_hid_keyboard_device,                      \
-    .flags      = VMS_STRUCT,                                        \
-    .offset     = vmstate_offset_value(_state, _field, HIDState),    \
-}
-
-extern const VMStateDescription vmstate_hid_ptr_device;
-
-#define VMSTATE_HID_POINTER_DEVICE(_field, _state) {                 \
-    .name       = (stringify(_field)),                               \
-    .size       = sizeof(HIDState),                                  \
-    .vmsd       = &vmstate_hid_ptr_device,                           \
-    .flags      = VMS_STRUCT,                                        \
-    .offset     = vmstate_offset_value(_state, _field, HIDState),    \
-}
-
-/* _f : field name
-   _f_n : num of elements field_name
-   _n : num of elements
-   _s : struct state name
-   _v : version
-*/
-
-#define VMSTATE_SINGLE(_field, _state, _version, _info, _type)        \
-    VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type)
-
-#define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type)        \
-    VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type)
-
-#define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type)          \
-    VMSTATE_STRUCT_POINTER_TEST(_field, _state, NULL, _vmsd, _type)
-
-#define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \
-    VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version,   \
-            _vmsd, _type)
-
-#define VMSTATE_BOOL_V(_f, _s, _v)                                    \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool)
-
-#define VMSTATE_INT8_V(_f, _s, _v)                                    \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
-#define VMSTATE_INT16_V(_f, _s, _v)                                   \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
-#define VMSTATE_INT32_V(_f, _s, _v)                                   \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
-#define VMSTATE_INT64_V(_f, _s, _v)                                   \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)
-
-#define VMSTATE_UINT8_V(_f, _s, _v)                                   \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
-#define VMSTATE_UINT16_V(_f, _s, _v)                                  \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
-#define VMSTATE_UINT32_V(_f, _s, _v)                                  \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
-#define VMSTATE_UINT64_V(_f, _s, _v)                                  \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)
-
-#define VMSTATE_BOOL(_f, _s)                                          \
-    VMSTATE_BOOL_V(_f, _s, 0)
-
-#define VMSTATE_INT8(_f, _s)                                          \
-    VMSTATE_INT8_V(_f, _s, 0)
-#define VMSTATE_INT16(_f, _s)                                         \
-    VMSTATE_INT16_V(_f, _s, 0)
-#define VMSTATE_INT32(_f, _s)                                         \
-    VMSTATE_INT32_V(_f, _s, 0)
-#define VMSTATE_INT64(_f, _s)                                         \
-    VMSTATE_INT64_V(_f, _s, 0)
-
-#define VMSTATE_UINT8(_f, _s)                                         \
-    VMSTATE_UINT8_V(_f, _s, 0)
-#define VMSTATE_UINT16(_f, _s)                                        \
-    VMSTATE_UINT16_V(_f, _s, 0)
-#define VMSTATE_UINT32(_f, _s)                                        \
-    VMSTATE_UINT32_V(_f, _s, 0)
-#define VMSTATE_UINT64(_f, _s)                                        \
-    VMSTATE_UINT64_V(_f, _s, 0)
-
-#define VMSTATE_UINT8_EQUAL(_f, _s)                                   \
-    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t)
-
-#define VMSTATE_UINT16_EQUAL(_f, _s)                                  \
-    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t)
-
-#define VMSTATE_UINT16_EQUAL_V(_f, _s, _v)                            \
-    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t)
-
-#define VMSTATE_INT32_EQUAL(_f, _s)                                   \
-    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t)
-
-#define VMSTATE_UINT32_EQUAL(_f, _s)                                   \
-    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint32_equal, uint32_t)
-
-#define VMSTATE_INT32_LE(_f, _s)                                   \
-    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
-
-#define VMSTATE_UINT8_TEST(_f, _s, _t)                               \
-    VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t)
-
-#define VMSTATE_UINT16_TEST(_f, _s, _t)                               \
-    VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t)
-
-#define VMSTATE_UINT32_TEST(_f, _s, _t)                                  \
-    VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
-
-#define VMSTATE_TIMER_TEST(_f, _s, _test)                             \
-    VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
-
-#define VMSTATE_TIMER(_f, _s)                                         \
-    VMSTATE_TIMER_TEST(_f, _s, NULL)
-
-#define VMSTATE_TIMER_ARRAY(_f, _s, _n)                              \
-    VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *)
-
-#define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v)                         \
-    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool)
-
-#define VMSTATE_BOOL_ARRAY(_f, _s, _n)                               \
-    VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v)                         \
-    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t)
-
-#define VMSTATE_UINT16_ARRAY(_f, _s, _n)                               \
-    VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v)                         \
-    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
-
-#define VMSTATE_UINT8_ARRAY(_f, _s, _n)                               \
-    VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v)                        \
-    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
-
-#define VMSTATE_UINT32_ARRAY(_f, _s, _n)                              \
-    VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v)                        \
-    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
-
-#define VMSTATE_UINT64_ARRAY(_f, _s, _n)                              \
-    VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v)                         \
-    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
-
-#define VMSTATE_INT16_ARRAY(_f, _s, _n)                               \
-    VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v)                         \
-    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
-
-#define VMSTATE_INT32_ARRAY(_f, _s, _n)                               \
-    VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num)                \
-    VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
-
-#define VMSTATE_UINT32_ARRAY(_f, _s, _n)                              \
-    VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v)                         \
-    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t)
-
-#define VMSTATE_INT64_ARRAY(_f, _s, _n)                               \
-    VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
-
-#define VMSTATE_BUFFER_V(_f, _s, _v)                                  \
-    VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
-
-#define VMSTATE_BUFFER(_f, _s)                                        \
-    VMSTATE_BUFFER_V(_f, _s, 0)
-
-#define VMSTATE_PARTIAL_BUFFER(_f, _s, _size)                         \
-    VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
-
-#define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
-    VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, _start, sizeof(typeof_field(_s, _f)))
-
-#define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size)                        \
-    VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size)
-
-#define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size)                        \
-    VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, 0, _size)
-
-#define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size)                    \
-    VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size)
-
-#define VMSTATE_BUFFER_TEST(_f, _s, _test)                            \
-    VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
-
-#define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size)        \
-    VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
-
-#define VMSTATE_UNUSED_V(_v, _size)                                   \
-    VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
-
-#define VMSTATE_UNUSED(_size)                                         \
-    VMSTATE_UNUSED_V(0, _size)
-
-#define VMSTATE_UNUSED_TEST(_test, _size)                             \
-    VMSTATE_UNUSED_BUFFER(_test, 0, _size)
-
 #ifdef NEED_CPU_H
 #if TARGET_LONG_BITS == 64
 #define VMSTATE_UINTTL_V(_f, _s, _v)                                  \
@@ -934,24 +65,4 @@ extern const VMStateDescription vmstate_hid_ptr_device;
 
 #endif
 
-#define VMSTATE_END_OF_LIST()                                         \
-    {}
-
-int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
-                       void *opaque, int version_id);
-void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
-                        void *opaque);
-int vmstate_register(DeviceState *dev, int instance_id,
-                     const VMStateDescription *vmsd, void *base);
-int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
-                                   const VMStateDescription *vmsd,
-                                   void *base, int alias_id,
-                                   int required_for_version);
-void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
-                        void *opaque);
-struct MemoryRegion;
-void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
-void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
-void vmstate_register_ram_global(struct MemoryRegion *memory);
-
 #endif
diff --git a/hw/i2c.h b/hw/i2c.h
index 9381d01589..a3383ff025 100644
--- a/hw/i2c.h
+++ b/hw/i2c.h
@@ -74,4 +74,14 @@ void tmp105_set(i2c_slave *i2c, int temp);
 /* lm832x.c */
 void lm832x_key_event(DeviceState *dev, int key, int state);
 
+extern const VMStateDescription vmstate_i2c_slave;
+
+#define VMSTATE_I2C_SLAVE(_field, _state) {                          \
+    .name       = (stringify(_field)),                               \
+    .size       = sizeof(i2c_slave),                                 \
+    .vmsd       = &vmstate_i2c_slave,                                \
+    .flags      = VMS_STRUCT,                                        \
+    .offset     = vmstate_offset_value(_state, _field, i2c_slave),   \
+}
+
 #endif
diff --git a/hw/pci.h b/hw/pci.h
index 625e717642..0d2cff6fec 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -552,4 +552,22 @@ static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev,
     qemu_sglist_init(qsg, alloc_hint);
 }
 
+extern const VMStateDescription vmstate_pci_device;
+
+#define VMSTATE_PCI_DEVICE(_field, _state) {                         \
+    .name       = (stringify(_field)),                               \
+    .size       = sizeof(PCIDevice),                                 \
+    .vmsd       = &vmstate_pci_device,                               \
+    .flags      = VMS_STRUCT,                                        \
+    .offset     = vmstate_offset_value(_state, _field, PCIDevice),   \
+}
+
+#define VMSTATE_PCI_DEVICE_POINTER(_field, _state) {                 \
+    .name       = (stringify(_field)),                               \
+    .size       = sizeof(PCIDevice),                                 \
+    .vmsd       = &vmstate_pci_device,                               \
+    .flags      = VMS_STRUCT|VMS_POINTER,                            \
+    .offset     = vmstate_offset_pointer(_state, _field, PCIDevice), \
+}
+
 #endif
diff --git a/hw/pcie.h b/hw/pcie.h
index a213fbaee8..b8ab0c7b4f 100644
--- a/hw/pcie.h
+++ b/hw/pcie.h
@@ -129,4 +129,15 @@ void pcie_add_capability(PCIDevice *dev,
 
 void pcie_ari_init(PCIDevice *dev, uint16_t offset, uint16_t nextfn);
 
+extern const VMStateDescription vmstate_pcie_device;
+
+#define VMSTATE_PCIE_DEVICE(_field, _state) {                        \
+    .name       = (stringify(_field)),                               \
+    .version_id = 2,                                                 \
+    .size       = sizeof(PCIDevice),                                 \
+    .vmsd       = &vmstate_pcie_device,                              \
+    .flags      = VMS_STRUCT,                                        \
+    .offset     = vmstate_offset_value(_state, _field, PCIDevice),   \
+}
+
 #endif /* QEMU_PCIE_H */
diff --git a/hw/ptimer.h b/hw/ptimer.h
index 69cdddc721..6638f61322 100644
--- a/hw/ptimer.h
+++ b/hw/ptimer.h
@@ -10,6 +10,7 @@
 
 #include "qemu-common.h"
 #include "qemu-timer.h"
+#include "vmstate.h"
 
 /* ptimer.c */
 typedef struct ptimer_state ptimer_state;
@@ -24,4 +25,15 @@ void ptimer_set_count(ptimer_state *s, uint64_t count);
 void ptimer_run(ptimer_state *s, int oneshot);
 void ptimer_stop(ptimer_state *s);
 
+extern const VMStateDescription vmstate_ptimer;
+
+#define VMSTATE_PTIMER(_field, _state) {                             \
+    .name       = (stringify(_field)),                               \
+    .version_id = (1),                                               \
+    .vmsd       = &vmstate_ptimer,                                   \
+    .size       = sizeof(ptimer_state *),                            \
+    .flags      = VMS_STRUCT|VMS_POINTER,                            \
+    .offset     = vmstate_offset_pointer(_state, _field, ptimer_state), \
+}
+
 #endif
diff --git a/hw/usb.h b/hw/usb.h
index c6e1870e59..7ea90e4d9c 100644
--- a/hw/usb.h
+++ b/hw/usb.h
@@ -392,3 +392,15 @@ static inline USBBus *usb_bus_from_device(USBDevice *d)
 {
     return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
 }
+
+extern const VMStateDescription vmstate_usb_device;
+
+#define VMSTATE_USB_DEVICE(_field, _state) {                         \
+    .name       = (stringify(_field)),                               \
+    .size       = sizeof(USBDevice),                                 \
+    .vmsd       = &vmstate_usb_device,                               \
+    .flags      = VMS_STRUCT,                                        \
+    .offset     = vmstate_offset_value(_state, _field, USBDevice),   \
+}
+
+