- /* Get the base physical address of the region */
-
- address = obj_desc->region.address;
-
- /* Get part of the table header to get the table length */
-
- table_header.length = 0;
- for (i = 0; i < 8; i++) {
- status =
- acpi_ev_address_space_dispatch(obj_desc, ACPI_READ,
- (acpi_physical_address)
- (i + address), 8,
- &temp);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the one valid byte of the returned 64-bit value */
-
- ACPI_CAST_PTR(u8, &table_header)[i] = (u8) temp;
- }
-
- /* Sanity check the table length */
-
- if (table_header.length < sizeof(struct acpi_table_header)) {
- return_ACPI_STATUS(AE_BAD_HEADER);
- }
+ /*
+ * We will simply map the memory region for the table. However, the
+ * memory region is technically not guaranteed to remain stable and
+ * we may eventually have to copy the table to a local buffer.
+ */
+ table_desc.address = obj_desc->region.address;
+ table_desc.length = obj_desc->region.length;
+ table_desc.flags = ACPI_TABLE_ORIGIN_MAPPED;
+ break;