Thiss allows to sent a partial array where the size is another
structure field multiplied by a constant.
Signed-off-by: Juan Quintela <quint...@redhat.com>
---
hw/hw.h | 11 +++++++++++
savevm.c | 6 ++++++
2 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/hw/hw.h b/hw/hw.h
index 798732f..727d563 100644
--- a/hw/hw.h
+++ b/hw/hw.h
@@ -300,6 +300,7 @@ enum VMStateFlags {
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*/
+ VMS_MULTIPLY_ELEMENTS= 0x1000, /* multiply "size" field by field_size */
};
typedef struct {
@@ -424,6 +425,16 @@ extern const VMStateDescription vmstate_cpu;
.offset = vmstate_offset_array(_state, _field, _type, _num), \
}
+#define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info,
_type) { \
+ .name = (stringify(_field)), \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
+ .num = (_multiply), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \
+ .offset = offsetof(_state, _field), \
+}
+
#define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
.name = (stringify(_field)), \
.field_exists = (_test), \
diff --git a/savevm.c b/savevm.c
index 2e191ad..8ef46a1 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1460,6 +1460,9 @@ int vmstate_load_state(QEMUFile *f, const
VMStateDescription *vmsd,
} else if (field->flags & VMS_VARRAY_UINT8) {
n_elems = *(uint8_t *)(opaque+field->num_offset);
}
+ if (field->flags & VMS_MULTIPLY_ELEMENTS) {
+ n_elems *= field->num;
+ }
if (field->flags & VMS_POINTER) {
base_addr = *(void **)base_addr + field->start;
}
@@ -1524,6 +1527,9 @@ void vmstate_save_state(QEMUFile *f, const
VMStateDescription *vmsd,
} else if (field->flags & VMS_VARRAY_UINT8) {
n_elems = *(uint8_t *)(opaque+field->num_offset);
}
+ if (field->flags & VMS_MULTIPLY_ELEMENTS) {
+ n_elems *= field->num;
+ }
if (field->flags & VMS_POINTER) {
base_addr = *(void **)base_addr + field->start;
}
--
1.7.6.4
