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authorJuan Quintela <quintela@redhat.com>2016-01-11 12:40:22 +0000
committerMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>2016-01-16 12:01:23 +0000
commitb47d3af7559b6fe17a2a86a1f0bf69f386873753 (patch)
tree6adc1f3a61e3457ff0c229ba9f1e7df32646c9e2 /include/migration
parent551747491d6677e4cc6cac8750462887a09bc722 (diff)
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vmstate: Introduce VMSTATE_VARRAY_MULTPLY
This allows to send a partial array where the size is another structure field multiplied by a constant. Signed-off-by: Juan Quintela <quintela@redhat.com> [PMM: updated to current master] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Diffstat (limited to 'include/migration')
-rw-r--r--include/migration/vmstate.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index 9b516c1..a4b81bb 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -102,6 +102,7 @@ enum VMStateFlags {
VMS_VARRAY_UINT32 = 0x800, /* Array with size in uint32_t field*/
VMS_MUST_EXIST = 0x1000, /* Field must exist in input */
VMS_ALLOC = 0x2000, /* Alloc a buffer on the destination */
+ VMS_MULTIPLY_ELEMENTS = 0x4000, /* multiply varray size by field->num */
};
typedef struct {
@@ -246,6 +247,16 @@ extern const VMStateInfo vmstate_info_bitmap;
.offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \
}
+#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), \