dmi_memory_array_addr
Synopsis
#include <opendmi/entity/memory-array-addr.h>
typedef struct dmi_memory_array_addr {
uint64_t start_address;
uint64_t end_address;
uint64_t range_size;
dmi_handle_t array_handle;
dmi_entity_t *array;
unsigned short partition_width;
} dmi_memory_array_addr_t;Description
The dmi_memory_array_addr_t structure holds the decoded memory array
mapped address structure (type 19) of SMBIOS: it maps one contiguous range
of physical addresses to a physical memory array. The table holds one such
structure for each range, and several ranges may map to the same array.
Since SMBIOS 2.3, a table must hold at least one of them.
The structure gives the addresses in kilobytes, or, since SMBIOS 2.7, in bytes in extended fields for the ranges which do not fit; the decoder converts both to bytes.
The structure is returned by dmi_entity_info for the structures of type
DMI_TYPE(memory_array_addr), and lives as long as the context it has been
decoded in.
Fields
start_address-
Physical address of the start of the range, in bytes.
end_address-
Physical address of the last byte of the range. When the structure gives the addresses in kilobytes, this is the last byte of the last kilobyte of the range.
range_size-
Size of the range in bytes, computed from
start_addressandend_address, whichever order they come in, both of which belong to the range. array_handle-
Handle of the physical memory array structure (type 16) the range maps to.
array-
Entity of the physical memory array structure, set when the structures are linked;
nullptrifarray_handledoes not refer to a physical memory array. partition_width-
Number of memory devices which make up one row of memory for the partition of addresses this structure defines.
Examples
dmi_registry_t *registry = dmi_get_registry(context);
dmi_entity_t *entity = dmi_registry_lookup_first(registry,
DMI_TYPE(memory_array_addr), false);
dmi_memory_array_addr_t *range = dmi_entity_info(entity,
DMI_TYPE(memory_array_addr));
if (range != nullptr)
printf("0x%llx-0x%llx, array 0x%04x\n",
(unsigned long long)range->start_address,
(unsigned long long)range->end_address,
(unsigned)range->array_handle);