- * efi_reserve_memory() - add reserved memory to memory map
- *
- * @addr: start address of the reserved memory range
- * @size: size of the reserved memory range
- * @nomap: indicates that the memory range shall not be accessed by the
- * UEFI payload
- */
-static void efi_reserve_memory(u64 addr, u64 size, bool nomap)
-{
- int type;
- efi_uintn_t ret;
-
- /* Convert from sandbox address space. */
- addr = (uintptr_t)map_sysmem(addr, 0);
-
- if (nomap)
- type = EFI_RESERVED_MEMORY_TYPE;
- else
- type = EFI_BOOT_SERVICES_DATA;
-
- ret = efi_add_memory_map(addr, size, type);
- if (ret != EFI_SUCCESS)
- log_err("Reserved memory mapping failed addr %llx size %llx\n",
- addr, size);
-}
-
-/**
- * efi_carve_out_dt_rsv() - Carve out DT reserved memory ranges
- *
- * The mem_rsv entries of the FDT are added to the memory map. Any failures are
- * ignored because this is not critical and we would rather continue to try to
- * boot.
- *
- * @fdt: Pointer to device tree
- */
-static void efi_carve_out_dt_rsv(void *fdt)
-{
- int nr_rsv, i;
- u64 addr, size;
- int nodeoffset, subnode;
-
- nr_rsv = fdt_num_mem_rsv(fdt);
-
- /* Look for an existing entry and add it to the efi mem map. */
- for (i = 0; i < nr_rsv; i++) {
- if (fdt_get_mem_rsv(fdt, i, &addr, &size) != 0)
- continue;
- efi_reserve_memory(addr, size, false);
- }
-
- /* process reserved-memory */
- nodeoffset = fdt_subnode_offset(fdt, 0, "reserved-memory");
- if (nodeoffset >= 0) {
- subnode = fdt_first_subnode(fdt, nodeoffset);
- while (subnode >= 0) {
- fdt_addr_t fdt_addr;
- fdt_size_t fdt_size;
-
- /* check if this subnode has a reg property */
- fdt_addr = fdtdec_get_addr_size_auto_parent(
- fdt, nodeoffset, subnode,
- "reg", 0, &fdt_size, false);
- /*
- * The /reserved-memory node may have children with
- * a size instead of a reg property.
- */
- if (fdt_addr != FDT_ADDR_T_NONE &&
- fdtdec_get_is_enabled(fdt, subnode)) {
- bool nomap;
-
- nomap = !!fdt_getprop(fdt, subnode, "no-map",
- NULL);
- efi_reserve_memory(fdt_addr, fdt_size, nomap);
- }
- subnode = fdt_next_subnode(fdt, subnode);
- }
- }
-}
-
-/**