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vmstate: Allow dynamic allocation for VBUFFER during migration

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This extends use of VMS_ALLOC flag from arrays to VBUFFER as well.

This defines VMSTATE_VBUFFER_ALLOC_UINT32 which makes use of VMS_ALLOC
and uses uint32_t type for a size.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Alexey Kardashevskiy 2014-10-02 19:56:02 +10:00 • committed by Juan Quintela
parent 7ea2d269cb
commit 94ed706d53
2 changed files with 21 additions and 3 deletions
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11
include/migration/vmstate.h
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@ -484,6 +484,17 @@ extern const VMStateInfo vmstate_info_bitmap;
.start = (_start), \
}
#define VMSTATE_VBUFFER_ALLOC_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|VMS_ALLOC, \
.offset = offsetof(_state, _field), \
.start = (_start), \
}
#define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) { \
.name = (stringify(_field)), \
.version_id = (_version), \