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migration: Add support for a variable-length array of UINT32 pointers

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Add support for defining a vmstate field which is a variable-length array
of pointers, and use this to define a VMSTATE_TIMER_PTR_VARRAY() which allows
a variable-length array of QEMUTimer* to be used by devices.

Message-id: 20250909-timers-v1-0-7ee18a9d8f4b@linux.alibaba.com
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: TANG Tiancheng <lyndra@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20250911-timers-v3-2-60508f640050@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
TANG Tiancheng 2025-09-11 17:56:14 +08:00 • committed by Alistair Francis
parent 63181b069b
commit 30478e2ff7
1 changed files with 10 additions and 0 deletions
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10
include/migration/vmstate.h
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@ -522,6 +522,16 @@ extern const VMStateInfo vmstate_info_qlist;
.offset = vmstate_offset_array(_s, _f, _type*, _n), \
}
#define VMSTATE_VARRAY_OF_POINTER_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_ARRAY_OF_POINTER | VMS_POINTER, \
.offset = vmstate_offset_pointer(_state, _field, _type), \
}
#define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \
.name = (stringify(_field)), \
.version_id = (_version), \