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- /* lsefimemmap.c - Display memory map. */
- /*
- * GRUB -- GRand Unified Bootloader
- * Copyright (C) 2008 Free Software Foundation, Inc.
- *
- * GRUB is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * GRUB is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
- */
- #include <grub/types.h>
- #include <grub/mm.h>
- #include <grub/misc.h>
- #include <grub/efi/api.h>
- #include <grub/efi/efi.h>
- #include <grub/command.h>
- GRUB_MOD_LICENSE ("GPLv3+");
- #define ADD_MEMORY_DESCRIPTOR(desc, size) \
- ((grub_efi_memory_descriptor_t *) ((char *) (desc) + (size)))
- static grub_err_t
- grub_cmd_lsefimmap (grub_command_t cmd __attribute__ ((unused)),
- int argc __attribute__ ((unused)),
- char **args __attribute__ ((unused)))
- {
- grub_efi_uintn_t map_size;
- grub_efi_memory_descriptor_t *memory_map;
- grub_efi_memory_descriptor_t *memory_map_end;
- grub_efi_memory_descriptor_t *desc;
- grub_efi_uintn_t desc_size;
- map_size = 0;
- if (grub_efi_get_memory_map (&map_size, NULL, NULL, &desc_size, 0) < 0)
- return 0;
- memory_map = grub_malloc (map_size);
- if (memory_map == NULL)
- return grub_errno;
- if (grub_efi_get_memory_map (&map_size, memory_map, NULL, &desc_size, 0) <= 0)
- goto fail;
- grub_printf
- ("Type Physical start - end #Pages "
- " Size Attributes\n");
- memory_map_end = ADD_MEMORY_DESCRIPTOR (memory_map, map_size);
- for (desc = memory_map;
- desc < memory_map_end;
- desc = ADD_MEMORY_DESCRIPTOR (desc, desc_size))
- {
- grub_efi_uint64_t size;
- grub_efi_uint64_t attr;
- static const char types_str[][9] =
- {
- "reserved",
- "ldr-code",
- "ldr-data",
- "BS-code ",
- "BS-data ",
- "RT-code ",
- "RT-data ",
- "conv-mem",
- "unusable",
- "ACPI-rec",
- "ACPI-nvs",
- "MMIO ",
- "IO-ports",
- "PAL-code"
- };
- if (desc->type < ARRAY_SIZE (types_str))
- grub_printf ("%s ", types_str[desc->type]);
- else
- grub_printf ("Unk %02x ", desc->type);
-
- grub_printf (" %016" PRIxGRUB_UINT64_T "-%016" PRIxGRUB_UINT64_T
- " %08" PRIxGRUB_UINT64_T,
- desc->physical_start,
- desc->physical_start + (desc->num_pages << 12) - 1,
- desc->num_pages);
- size = desc->num_pages;
- size <<= (12 - 10);
- if (size < 1024)
- grub_printf (" %4" PRIuGRUB_UINT64_T "KB", size);
- else
- {
- size /= 1024;
- if (size < 1024)
- grub_printf (" %4" PRIuGRUB_UINT64_T "MB", size);
- else
- {
- size /= 1024;
- grub_printf (" %4" PRIuGRUB_UINT64_T "GB", size);
- }
- }
- attr = desc->attribute;
- if (attr & GRUB_EFI_MEMORY_RUNTIME)
- grub_printf (" RT");
- if (attr & GRUB_EFI_MEMORY_UC)
- grub_printf (" UC");
- if (attr & GRUB_EFI_MEMORY_WC)
- grub_printf (" WC");
- if (attr & GRUB_EFI_MEMORY_WT)
- grub_printf (" WT");
- if (attr & GRUB_EFI_MEMORY_WB)
- grub_printf (" WB");
- if (attr & GRUB_EFI_MEMORY_UCE)
- grub_printf (" UCE");
- if (attr & GRUB_EFI_MEMORY_WP)
- grub_printf (" WP");
- if (attr & GRUB_EFI_MEMORY_RP)
- grub_printf (" RP");
- if (attr & GRUB_EFI_MEMORY_XP)
- grub_printf (" XP");
- grub_printf ("\n");
- }
- fail:
- grub_free (memory_map);
- return 0;
- }
- static grub_command_t cmd;
- GRUB_MOD_INIT(lsefimmap)
- {
- cmd = grub_register_command ("lsefimmap", grub_cmd_lsefimmap,
- "", "Display EFI memory map.");
- }
- GRUB_MOD_FINI(lsefimmap)
- {
- grub_unregister_command (cmd);
- }
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