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-rw-r--r--cmd/efi.c221
-rw-r--r--cmd/efi_common.c121
-rw-r--r--cmd/efidebug.c96
-rw-r--r--doc/usage/cmd/efi.rst306
-rw-r--r--include/efi.h18
5 files changed, 292 insertions, 470 deletions
diff --git a/cmd/efi.c b/cmd/efi.c
index 687ccb52042..c49a873f3da 100644
--- a/cmd/efi.c
+++ b/cmd/efi.c
@@ -10,223 +10,19 @@
#include <errno.h>
#include <log.h>
#include <malloc.h>
-#include <sort.h>
#include <u-boot/uuid.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
-static const char *const type_name[] = {
- "reserved",
- "loader_code",
- "loader_data",
- "bs_code",
- "bs_data",
- "rt_code",
- "rt_data",
- "conv",
- "unusable",
- "acpi_reclaim",
- "acpi_nvs",
- "io",
- "io_port",
- "pal_code",
-};
-
-static struct attr_info {
- u64 val;
- const char *name;
-} mem_attr[] = {
- { EFI_MEMORY_UC, "uncached" },
- { EFI_MEMORY_WC, "write-coalescing" },
- { EFI_MEMORY_WT, "write-through" },
- { EFI_MEMORY_WB, "write-back" },
- { EFI_MEMORY_UCE, "uncached & exported" },
- { EFI_MEMORY_WP, "write-protect" },
- { EFI_MEMORY_RP, "read-protect" },
- { EFI_MEMORY_XP, "execute-protect" },
- { EFI_MEMORY_NV, "non-volatile" },
- { EFI_MEMORY_MORE_RELIABLE, "higher reliability" },
- { EFI_MEMORY_RO, "read-only" },
- { EFI_MEMORY_SP, "specific purpose" },
- { EFI_MEMORY_RUNTIME, "needs runtime mapping" }
-};
-
-/* Maximum different attribute values we can track */
-#define ATTR_SEEN_MAX 30
-
-static inline bool is_boot_services(int type)
-{
- return type == EFI_LOADER_CODE || type == EFI_LOADER_DATA ||
- type == EFI_BOOT_SERVICES_CODE ||
- type == EFI_BOOT_SERVICES_DATA;
-}
-
-static int h_cmp_entry(const void *v1, const void *v2)
-{
- const struct efi_mem_desc *desc1 = v1;
- const struct efi_mem_desc *desc2 = v2;
- int64_t diff = desc1->physical_start - desc2->physical_start;
-
- /*
- * Manually calculate the difference to avoid sign loss in the 64-bit
- * to 32-bit conversion
- */
- return diff < 0 ? -1 : diff > 0 ? 1 : 0;
-}
-
-/**
- * efi_build_mem_table() - make a sorted copy of the memory table
- *
- * @desc_base: Pointer to EFI memory map table
- * @size: Size of table in bytes
- * @desc_size: Size of each @desc_base record
- * @skip_bs: True to skip boot-time memory and merge it with conventional
- * memory. This will significantly reduce the number of table
- * entries.
- * Return: pointer to the new table. It should be freed with free() by the
- * caller.
- */
-static void *efi_build_mem_table(struct efi_mem_desc *desc_base, int size,
- int desc_size, bool skip_bs)
-{
- struct efi_mem_desc *desc, *end, *base, *dest, *prev;
- int count;
- u64 addr;
-
- base = malloc(size + sizeof(*desc));
- if (!base) {
- debug("%s: Cannot allocate %#x bytes\n", __func__, size);
- return NULL;
- }
- end = (void *)desc_base + size;
- count = ((ulong)end - (ulong)desc_base) / desc_size;
- memcpy(base, desc_base, (ulong)end - (ulong)desc_base);
- qsort(base, count, desc_size, h_cmp_entry);
- prev = NULL;
- addr = 0;
- dest = base;
- end = (struct efi_mem_desc *)((ulong)base + count * desc_size);
- for (desc = base; desc < end;
- desc = efi_get_next_mem_desc(desc, desc_size)) {
- bool merge = true;
- u32 type = desc->type;
-
- if (type >= EFI_MAX_MEMORY_TYPE) {
- printf("Memory map contains invalid entry type %u\n",
- type);
- continue;
- }
-
- if (skip_bs && is_boot_services(desc->type))
- type = EFI_CONVENTIONAL_MEMORY;
-
- memcpy(dest, desc, desc_size);
- dest->type = type;
- if (!skip_bs || !prev)
- merge = false;
- else if (desc->physical_start != addr)
- merge = false;
- else if (type != EFI_CONVENTIONAL_MEMORY)
- merge = false;
- else if (prev->type != EFI_CONVENTIONAL_MEMORY)
- merge = false;
-
- if (merge) {
- prev->num_pages += desc->num_pages;
- } else {
- prev = dest;
- dest = efi_get_next_mem_desc(dest, desc_size);
- }
- addr = desc->physical_start + (desc->num_pages <<
- EFI_PAGE_SHIFT);
- }
-
- /* Mark the end */
- dest->type = EFI_MAX_MEMORY_TYPE;
-
- return base;
-}
-
-static void efi_print_mem_table(struct efi_mem_desc *desc, int desc_size,
- bool skip_bs)
-{
- u64 attr_seen[ATTR_SEEN_MAX];
- int attr_seen_count;
- int upto, i;
- u64 addr;
-
- printf(" # %-14s %10s %10s %10s %s\n", "Type", "Physical",
- "Virtual", "Size", "Attributes");
-
- /* Keep track of all the different attributes we have seen */
- attr_seen_count = 0;
- addr = 0;
- for (upto = 0; desc->type != EFI_MAX_MEMORY_TYPE;
- upto++, desc = efi_get_next_mem_desc(desc, desc_size)) {
- const char *name;
- u64 size;
-
- if (skip_bs && is_boot_services(desc->type))
- continue;
- if (desc->physical_start != addr) {
- printf(" %-14s %010llx %10s %010llx\n", "<gap>",
- addr, "", desc->physical_start - addr);
- }
- size = desc->num_pages << EFI_PAGE_SHIFT;
-
- name = desc->type < ARRAY_SIZE(type_name) ?
- type_name[desc->type] : "<invalid>";
- printf("%2d %x:%-12s %010llx %010llx %010llx ", upto,
- desc->type, name, desc->physical_start,
- desc->virtual_start, size);
- if (desc->attribute & EFI_MEMORY_RUNTIME)
- putc('r');
- printf("%llx", desc->attribute & ~EFI_MEMORY_RUNTIME);
- putc('\n');
-
- for (i = 0; i < attr_seen_count; i++) {
- if (attr_seen[i] == desc->attribute)
- break;
- }
- if (i == attr_seen_count && i < ATTR_SEEN_MAX)
- attr_seen[attr_seen_count++] = desc->attribute;
- addr = desc->physical_start + size;
- }
-
- printf("\nAttributes key:\n");
- for (i = 0; i < attr_seen_count; i++) {
- u64 attr = attr_seen[i];
- bool first;
- int j;
-
- printf("%c%llx: ", (attr & EFI_MEMORY_RUNTIME) ? 'r' : ' ',
- attr & ~EFI_MEMORY_RUNTIME);
- for (j = 0, first = true; j < ARRAY_SIZE(mem_attr); j++) {
- if (attr & mem_attr[j].val) {
- if (first)
- first = false;
- else
- printf(", ");
- printf("%s", mem_attr[j].name);
- }
- }
- putc('\n');
- }
- if (skip_bs)
- printf("*Some areas are merged (use 'all' to see)\n");
-}
-
static int do_efi_mem(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
- struct efi_mem_desc *orig, *desc;
- uint version, key;
+ struct efi_mem_desc *orig;
+ uint version, key = 0;
int desc_size;
int size, ret;
- bool skip_bs;
- skip_bs = !argc || *argv[0] != 'a';
if (IS_ENABLED(CONFIG_EFI_APP)) {
ret = efi_get_mmap(&orig, &size, &key, &desc_size, &version);
if (ret) {
@@ -257,14 +53,7 @@ static int do_efi_mem(struct cmd_tbl *cmdtp, int flag, int argc,
goto done;
}
- desc = efi_build_mem_table(orig, size, desc_size, skip_bs);
- if (!desc) {
- ret = -ENOMEM;
- goto done;
- }
-
- efi_print_mem_table(desc, desc_size, skip_bs);
- free(desc);
+ efi_show_memmap(orig, size, desc_size);
if (IS_ENABLED(CONFIG_EFI_APP))
free(orig);
done:
@@ -300,7 +89,7 @@ static int do_efi_tables(struct cmd_tbl *cmdtp, int flag, int argc,
}
static struct cmd_tbl efi_commands[] = {
- U_BOOT_CMD_MKENT(mem, 1, 1, do_efi_mem, "", ""),
+ U_BOOT_CMD_MKENT(mem, 0, 1, do_efi_mem, "", ""),
U_BOOT_CMD_MKENT(tables, 1, 1, do_efi_tables, "", ""),
};
@@ -325,6 +114,6 @@ static int do_efi(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
U_BOOT_CMD(
efi, 3, 1, do_efi,
"EFI access",
- "mem [all] Dump memory information [include boot services]\n"
+ "mem Dump memory map\n"
"tables Dump tables"
);
diff --git a/cmd/efi_common.c b/cmd/efi_common.c
index d2f2b59e9e3..904747c5b32 100644
--- a/cmd/efi_common.c
+++ b/cmd/efi_common.c
@@ -8,8 +8,59 @@
#include <efi.h>
#include <efi_api.h>
+#include <mapmem.h>
#include <u-boot/uuid.h>
+/* Width of an EFI physical address in hexadecimal digits */
+#define EFI_PHYS_ADDR_WIDTH (int)(sizeof(efi_physical_addr_t) * 2)
+
+/* Width of the memory type column, sized for the longest type name */
+#define EFI_MEM_TYPE_WIDTH 23
+
+/*
+ * The type names of the UEFI specification without the leading 'Efi' and
+ * the trailing 'Type'
+ */
+static const char *const efi_mem_type_string[] = {
+ [EFI_RESERVED_MEMORY_TYPE] = "ReservedMemory",
+ [EFI_LOADER_CODE] = "LoaderCode",
+ [EFI_LOADER_DATA] = "LoaderData",
+ [EFI_BOOT_SERVICES_CODE] = "BootServicesCode",
+ [EFI_BOOT_SERVICES_DATA] = "BootServicesData",
+ [EFI_RUNTIME_SERVICES_CODE] = "RuntimeServicesCode",
+ [EFI_RUNTIME_SERVICES_DATA] = "RuntimeServicesData",
+ [EFI_CONVENTIONAL_MEMORY] = "ConventionalMemory",
+ [EFI_UNUSABLE_MEMORY] = "UnusableMemory",
+ [EFI_ACPI_RECLAIM_MEMORY] = "ACPIReclaimMemory",
+ [EFI_ACPI_MEMORY_NVS] = "ACPIMemoryNVS",
+ [EFI_MMAP_IO] = "MemoryMappedIO",
+ [EFI_MMAP_IO_PORT] = "MemoryMappedIOPortSpace",
+ [EFI_PAL_CODE] = "PalCode",
+ [EFI_PERSISTENT_MEMORY_TYPE] = "PersistentMemory",
+ [EFI_UNACCEPTED_MEMORY_TYPE] = "UnacceptedMemory",
+};
+
+static const struct efi_mem_attrs {
+ const u64 bit;
+ const char *text;
+} efi_mem_attrs[] = {
+ {EFI_MEMORY_UC, "UC"},
+ {EFI_MEMORY_WC, "WC"},
+ {EFI_MEMORY_WT, "WT"},
+ {EFI_MEMORY_WB, "WB"},
+ {EFI_MEMORY_UCE, "UCE"},
+ {EFI_MEMORY_WP, "WP"},
+ {EFI_MEMORY_RP, "RP"},
+ {EFI_MEMORY_XP, "XP"},
+ {EFI_MEMORY_NV, "NV"},
+ {EFI_MEMORY_MORE_RELIABLE, "REL"},
+ {EFI_MEMORY_RO, "RO"},
+ {EFI_MEMORY_SP, "SP"},
+ {EFI_MEMORY_CPU_CRYPTO, "CRYPT"},
+ {EFI_MEMORY_HOT_PLUGGABLE, "HOTPL"},
+ {EFI_MEMORY_RUNTIME, "RT"},
+};
+
void efi_show_tables(struct efi_system_table *systab)
{
int i;
@@ -21,3 +72,73 @@ void efi_show_tables(struct efi_system_table *systab)
uuid_guid_get_str(tab->guid.b) ?: "(unknown)");
}
}
+
+/**
+ * efi_mem_type_name() - get the name of an EFI memory type
+ *
+ * @type: memory type (enum efi_memory_type)
+ * Return: name of the memory type, or NULL if @type is unknown
+ */
+static const char *efi_mem_type_name(u32 type)
+{
+ if (type >= ARRAY_SIZE(efi_mem_type_string))
+ return NULL;
+
+ return efi_mem_type_string[type];
+}
+
+/**
+ * efi_print_mem_attrs() - print the names of set EFI memory attributes
+ *
+ * Prints the set attribute bits as a '|'-separated list of mnemonics,
+ * e.g. ' UC|WB|RT', preceded by a space. Prints nothing if no known
+ * attribute bit is set.
+ *
+ * @attributes: memory attributes (EFI_MEMORY_...)
+ */
+static void efi_print_mem_attrs(u64 attributes)
+{
+ int sep, i;
+
+ for (sep = 0, i = 0; i < ARRAY_SIZE(efi_mem_attrs); i++)
+ if (attributes & efi_mem_attrs[i].bit) {
+ if (sep) {
+ putc('|');
+ } else {
+ putc(' ');
+ sep = 1;
+ }
+ puts(efi_mem_attrs[i].text);
+ }
+}
+
+void efi_show_memmap(struct efi_mem_desc *map, efi_uintn_t map_size,
+ efi_uintn_t desc_size)
+{
+ struct efi_mem_desc *end = (void *)map + map_size;
+ static const char sep[] = "========================";
+ const char *type;
+
+ printf("%-*s %-*s %-*s Attributes\n",
+ EFI_MEM_TYPE_WIDTH, "Type",
+ EFI_PHYS_ADDR_WIDTH, "Start", EFI_PHYS_ADDR_WIDTH, "End");
+ printf("%.*s %.*s %.*s ==========\n",
+ EFI_MEM_TYPE_WIDTH, sep,
+ EFI_PHYS_ADDR_WIDTH, sep, EFI_PHYS_ADDR_WIDTH, sep);
+
+ for (; map < end; map = efi_get_next_mem_desc(map, desc_size)) {
+ type = efi_mem_type_name(map->type) ?: "(unknown)";
+
+ printf("%-*s %.*llx-%.*llx", EFI_MEM_TYPE_WIDTH, type,
+ EFI_PHYS_ADDR_WIDTH,
+ (u64)map_to_sysmem((void *)(uintptr_t)
+ map->physical_start),
+ EFI_PHYS_ADDR_WIDTH,
+ (u64)map_to_sysmem((void *)(uintptr_t)
+ (map->physical_start +
+ map->num_pages * EFI_PAGE_SIZE)));
+
+ efi_print_mem_attrs(map->attribute);
+ putc('\n');
+ }
+}
diff --git a/cmd/efidebug.c b/cmd/efidebug.c
index a6faa36b500..e55de04c699 100644
--- a/cmd/efidebug.c
+++ b/cmd/efidebug.c
@@ -574,70 +574,6 @@ static int do_efi_show_ecpt(struct cmd_tbl *cmdtp, int flag, int argc,
}
#endif /* CONFIG_IS_ENABLED(EFI_ECPT) */
-static const char * const efi_mem_type_string[] = {
- [EFI_RESERVED_MEMORY_TYPE] = "RESERVED",
- [EFI_LOADER_CODE] = "LOADER CODE",
- [EFI_LOADER_DATA] = "LOADER DATA",
- [EFI_BOOT_SERVICES_CODE] = "BOOT CODE",
- [EFI_BOOT_SERVICES_DATA] = "BOOT DATA",
- [EFI_RUNTIME_SERVICES_CODE] = "RUNTIME CODE",
- [EFI_RUNTIME_SERVICES_DATA] = "RUNTIME DATA",
- [EFI_CONVENTIONAL_MEMORY] = "CONVENTIONAL",
- [EFI_UNUSABLE_MEMORY] = "UNUSABLE MEM",
- [EFI_ACPI_RECLAIM_MEMORY] = "ACPI RECLAIM MEM",
- [EFI_ACPI_MEMORY_NVS] = "ACPI NVS",
- [EFI_MMAP_IO] = "IO",
- [EFI_MMAP_IO_PORT] = "IO PORT",
- [EFI_PAL_CODE] = "PAL",
- [EFI_PERSISTENT_MEMORY_TYPE] = "PERSISTENT",
-};
-
-static const struct efi_mem_attrs {
- const u64 bit;
- const char *text;
-} efi_mem_attrs[] = {
- {EFI_MEMORY_UC, "UC"},
- {EFI_MEMORY_WC, "WC"},
- {EFI_MEMORY_WT, "WT"},
- {EFI_MEMORY_WB, "WB"},
- {EFI_MEMORY_UCE, "UCE"},
- {EFI_MEMORY_WP, "WP"},
- {EFI_MEMORY_RP, "RP"},
- {EFI_MEMORY_XP, "XP"},
- {EFI_MEMORY_NV, "NV"},
- {EFI_MEMORY_MORE_RELIABLE, "REL"},
- {EFI_MEMORY_RO, "RO"},
- {EFI_MEMORY_SP, "SP"},
- {EFI_MEMORY_CPU_CRYPTO, "CRYPT"},
- {EFI_MEMORY_HOT_PLUGGABLE, "HOTPL"},
- {EFI_MEMORY_RUNTIME, "RT"},
-};
-
-/**
- * print_memory_attributes() - print memory map attributes
- *
- * @attributes: Attribute value
- *
- * Print memory map attributes
- */
-static void print_memory_attributes(u64 attributes)
-{
- int sep, i;
-
- for (sep = 0, i = 0; i < ARRAY_SIZE(efi_mem_attrs); i++)
- if (attributes & efi_mem_attrs[i].bit) {
- if (sep) {
- putc('|');
- } else {
- putc(' ');
- sep = 1;
- }
- puts(efi_mem_attrs[i].text);
- }
-}
-
-#define EFI_PHYS_ADDR_WIDTH (int)(sizeof(efi_physical_addr_t) * 2)
-
/**
* do_efi_show_memmap() - show UEFI memory map
*
@@ -653,43 +589,15 @@ static void print_memory_attributes(u64 attributes)
static int do_efi_show_memmap(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
{
- struct efi_mem_desc *memmap, *map;
+ struct efi_mem_desc *memmap;
efi_uintn_t map_size;
- const char *type;
- int i;
efi_status_t ret;
ret = efi_get_memory_map_alloc(&map_size, &memmap);
if (ret != EFI_SUCCESS)
return CMD_RET_FAILURE;
- printf("Type Start%.*s End%.*s Attributes\n",
- EFI_PHYS_ADDR_WIDTH - 5, spc, EFI_PHYS_ADDR_WIDTH - 3, spc);
- printf("================ %.*s %.*s ==========\n",
- EFI_PHYS_ADDR_WIDTH, sep, EFI_PHYS_ADDR_WIDTH, sep);
- /*
- * Coverity check: dereferencing null pointer "map."
- * This is a false positive as memmap will always be
- * populated by allocate_pool() above.
- */
- for (i = 0, map = memmap; i < map_size / sizeof(*map); map++, i++) {
- if (map->type < ARRAY_SIZE(efi_mem_type_string))
- type = efi_mem_type_string[map->type];
- else
- type = "(unknown)";
-
- printf("%-16s %.*llx-%.*llx", type,
- EFI_PHYS_ADDR_WIDTH,
- (u64)map_to_sysmem((void *)(uintptr_t)
- map->physical_start),
- EFI_PHYS_ADDR_WIDTH,
- (u64)map_to_sysmem((void *)(uintptr_t)
- (map->physical_start +
- map->num_pages * EFI_PAGE_SIZE)));
-
- print_memory_attributes(map->attribute);
- putc('\n');
- }
+ efi_show_memmap(memmap, map_size, sizeof(*memmap));
efi_free_pool(memmap);
diff --git a/doc/usage/cmd/efi.rst b/doc/usage/cmd/efi.rst
index b19d36188a9..3ccdbe9410c 100644
--- a/doc/usage/cmd/efi.rst
+++ b/doc/usage/cmd/efi.rst
@@ -12,7 +12,7 @@ Synopsis
::
- efi mem [all]
+ efi mem
efi tables
Description
@@ -29,34 +29,23 @@ happened.
efi mem
~~~~~~~
-This shows the EFI memory map, sorted in order of physical address.
-
-This is normally a very large table. To help reduce the amount of detritus,
-boot-time memory is normally merged with conventional memory. Use the 'all'
-argument to show everything.
-
-The fields are as follows:
-
-#
- Entry number (sequentially from 0)
+This shows the EFI memory map in the same format as the *efidebug memmap*
+command. One line is printed per memory region with the following fields:
Type
- Memory type. EFI has a large number of memory types. The type is shown in
- the format <n>:<name> where in is the format number in hex and <name> is the
- name.
-
-Physical
- Physical address
-
-Virtual
- Virtual address
+ Memory type, named as in the UEFI specification without the leading
+ 'Efi' and the trailing 'Type', e.g. ConventionalMemory for
+ EfiConventionalMemory.
-Size
- Size of memory area in bytes
+Start, End
+ Physical start and end address of the region. The virtual addresses of
+ the regions are not shown: the memory map is identity mapped when this
+ command can be used, i.e. before SetVirtualAddressMap() is called, so
+ the virtual address field of the memory map carries no information.
Attributes
- Shows a code for memory attributes. The key for this is shown below the
- table.
+ The attributes of the region as a '|'-separated list of mnemonics,
+ e.g. UC for EFI_MEMORY_UC and RT for EFI_MEMORY_RUNTIME.
efi tables
~~~~~~~~~~
@@ -72,142 +61,139 @@ Example
::
=> efi mem
- EFI table at 0, memory map 000000001ad38b60, size 1260, key a79, version 1, descr. size 0x30
- # Type Physical Virtual Size Attributes
- 0 7:conv 0000000000 0000000000 00000a0000 f
- <gap> 00000a0000 0000060000
- 1 7:conv 0000100000 0000000000 0000700000 f
- 2 a:acpi_nvs 0000800000 0000000000 0000008000 f
- 3 7:conv 0000808000 0000000000 0000008000 f
- 4 a:acpi_nvs 0000810000 0000000000 00000f0000 f
- 5 7:conv 0000900000 0000000000 001efef000 f
- 6 6:rt_data 001f8ef000 0000000000 0000100000 rf
- 7 5:rt_code 001f9ef000 0000000000 0000100000 rf
- 8 0:reserved 001faef000 0000000000 0000080000 f
- 9 9:acpi_reclaim 001fb6f000 0000000000 0000010000 f
- 10 a:acpi_nvs 001fb7f000 0000000000 0000080000 f
- 11 7:conv 001fbff000 0000000000 0000359000 f
- 12 6:rt_data 001ff58000 0000000000 0000020000 rf
- 13 a:acpi_nvs 001ff78000 0000000000 0000088000 f
- <gap> 0020000000 0090000000
- 14 0:reserved 00b0000000 0000000000 0010000000 1
-
- Attributes key:
- f: uncached, write-coalescing, write-through, write-back
- rf: uncached, write-coalescing, write-through, write-back, needs runtime mapping
- 1: uncached
- *Some areas are merged (use 'all' to see)
-
-
- => efi mem all
- EFI table at 0, memory map 000000001ad38bb0, size 1260, key a79, version 1, descr. size 0x30
- # Type Physical Virtual Size Attributes
- 0 3:bs_code 0000000000 0000000000 0000001000 f
- 1 7:conv 0000001000 0000000000 000009f000 f
- <gap> 00000a0000 0000060000
- 2 7:conv 0000100000 0000000000 0000700000 f
- 3 a:acpi_nvs 0000800000 0000000000 0000008000 f
- 4 7:conv 0000808000 0000000000 0000008000 f
- 5 a:acpi_nvs 0000810000 0000000000 00000f0000 f
- 6 4:bs_data 0000900000 0000000000 0000c00000 f
- 7 7:conv 0001500000 0000000000 000aa36000 f
- 8 2:loader_data 000bf36000 0000000000 0010000000 f
- 9 4:bs_data 001bf36000 0000000000 0000020000 f
- 10 7:conv 001bf56000 0000000000 00021e1000 f
- 11 1:loader_code 001e137000 0000000000 00000c4000 f
- 12 7:conv 001e1fb000 0000000000 000009b000 f
- 13 1:loader_code 001e296000 0000000000 00000e2000 f
- 14 7:conv 001e378000 0000000000 000005b000 f
- 15 4:bs_data 001e3d3000 0000000000 000001e000 f
- 16 7:conv 001e3f1000 0000000000 0000016000 f
- 17 4:bs_data 001e407000 0000000000 0000016000 f
- 18 2:loader_data 001e41d000 0000000000 0000002000 f
- 19 4:bs_data 001e41f000 0000000000 0000828000 f
- 20 3:bs_code 001ec47000 0000000000 0000045000 f
- 21 4:bs_data 001ec8c000 0000000000 0000001000 f
- 22 3:bs_code 001ec8d000 0000000000 000000e000 f
- 23 4:bs_data 001ec9b000 0000000000 0000001000 f
- 24 3:bs_code 001ec9c000 0000000000 000002c000 f
- 25 4:bs_data 001ecc8000 0000000000 0000001000 f
- 26 3:bs_code 001ecc9000 0000000000 000000c000 f
- 27 4:bs_data 001ecd5000 0000000000 0000006000 f
- 28 3:bs_code 001ecdb000 0000000000 0000014000 f
- 29 4:bs_data 001ecef000 0000000000 0000001000 f
- 30 3:bs_code 001ecf0000 0000000000 000005b000 f
- 31 4:bs_data 001ed4b000 0000000000 000000b000 f
- 32 3:bs_code 001ed56000 0000000000 0000024000 f
- 33 4:bs_data 001ed7a000 0000000000 0000006000 f
- 34 3:bs_code 001ed80000 0000000000 0000010000 f
- 35 4:bs_data 001ed90000 0000000000 0000002000 f
- 36 3:bs_code 001ed92000 0000000000 0000025000 f
- 37 4:bs_data 001edb7000 0000000000 0000003000 f
- 38 3:bs_code 001edba000 0000000000 0000011000 f
- 39 4:bs_data 001edcb000 0000000000 0000008000 f
- 40 3:bs_code 001edd3000 0000000000 000002d000 f
- 41 4:bs_data 001ee00000 0000000000 0000201000 f
- 42 3:bs_code 001f001000 0000000000 0000024000 f
- 43 4:bs_data 001f025000 0000000000 0000002000 f
- 44 3:bs_code 001f027000 0000000000 0000009000 f
- 45 4:bs_data 001f030000 0000000000 0000005000 f
- 46 3:bs_code 001f035000 0000000000 000002f000 f
- 47 4:bs_data 001f064000 0000000000 0000001000 f
- 48 3:bs_code 001f065000 0000000000 0000005000 f
- 49 4:bs_data 001f06a000 0000000000 0000005000 f
- 50 3:bs_code 001f06f000 0000000000 0000007000 f
- 51 4:bs_data 001f076000 0000000000 0000007000 f
- 52 3:bs_code 001f07d000 0000000000 000000d000 f
- 53 4:bs_data 001f08a000 0000000000 0000001000 f
- 54 3:bs_code 001f08b000 0000000000 0000006000 f
- 55 4:bs_data 001f091000 0000000000 0000004000 f
- 56 3:bs_code 001f095000 0000000000 000000d000 f
- 57 4:bs_data 001f0a2000 0000000000 0000003000 f
- 58 3:bs_code 001f0a5000 0000000000 0000026000 f
- 59 4:bs_data 001f0cb000 0000000000 0000005000 f
- 60 3:bs_code 001f0d0000 0000000000 0000019000 f
- 61 4:bs_data 001f0e9000 0000000000 0000004000 f
- 62 3:bs_code 001f0ed000 0000000000 0000024000 f
- 63 4:bs_data 001f111000 0000000000 0000008000 f
- 64 3:bs_code 001f119000 0000000000 000000b000 f
- 65 4:bs_data 001f124000 0000000000 0000001000 f
- 66 3:bs_code 001f125000 0000000000 0000002000 f
- 67 4:bs_data 001f127000 0000000000 0000002000 f
- 68 3:bs_code 001f129000 0000000000 0000009000 f
- 69 4:bs_data 001f132000 0000000000 0000003000 f
- 70 3:bs_code 001f135000 0000000000 0000005000 f
- 71 4:bs_data 001f13a000 0000000000 0000003000 f
- 72 3:bs_code 001f13d000 0000000000 0000005000 f
- 73 4:bs_data 001f142000 0000000000 0000003000 f
- 74 3:bs_code 001f145000 0000000000 0000011000 f
- 75 4:bs_data 001f156000 0000000000 000000b000 f
- 76 3:bs_code 001f161000 0000000000 0000009000 f
- 77 4:bs_data 001f16a000 0000000000 0000400000 f
- 78 3:bs_code 001f56a000 0000000000 0000006000 f
- 79 4:bs_data 001f570000 0000000000 0000001000 f
- 80 3:bs_code 001f571000 0000000000 0000001000 f
- 81 4:bs_data 001f572000 0000000000 0000002000 f
- 82 3:bs_code 001f574000 0000000000 0000017000 f
- 83 4:bs_data 001f58b000 0000000000 0000364000 f
- 84 6:rt_data 001f8ef000 0000000000 0000100000 rf
- 85 5:rt_code 001f9ef000 0000000000 0000100000 rf
- 86 0:reserved 001faef000 0000000000 0000080000 f
- 87 9:acpi_reclaim 001fb6f000 0000000000 0000010000 f
- 88 a:acpi_nvs 001fb7f000 0000000000 0000080000 f
- 89 4:bs_data 001fbff000 0000000000 0000201000 f
- 90 7:conv 001fe00000 0000000000 00000e8000 f
- 91 4:bs_data 001fee8000 0000000000 0000020000 f
- 92 3:bs_code 001ff08000 0000000000 0000026000 f
- 93 4:bs_data 001ff2e000 0000000000 0000009000 f
- 94 3:bs_code 001ff37000 0000000000 0000021000 f
- 95 6:rt_data 001ff58000 0000000000 0000020000 rf
- 96 a:acpi_nvs 001ff78000 0000000000 0000088000 f
- <gap> 0020000000 0090000000
- 97 0:reserved 00b0000000 0000000000 0010000000 1
-
- Attributes key:
- f: uncached, write-coalescing, write-through, write-back
- rf: uncached, write-coalescing, write-through, write-back, needs runtime mapping
- 1: uncached
-
+ EFI table at 0, memory map 000000001a977d90, size 1860, key 9e7, version 1, descr. size 0x30
+ Type Start End Attributes
+ ======================= ================ ================ ==========
+ BootServicesCode 0000000000000000-0000000000001000 UC|WC|WT|WB
+ ConventionalMemory 0000000000001000-00000000000a0000 UC|WC|WT|WB
+ ConventionalMemory 0000000000100000-0000000000800000 UC|WC|WT|WB
+ ACPIMemoryNVS 0000000000800000-0000000000808000 UC|WC|WT|WB
+ ConventionalMemory 0000000000808000-000000000080b000 UC|WC|WT|WB
+ ACPIMemoryNVS 000000000080b000-000000000080c000 UC|WC|WT|WB
+ ConventionalMemory 000000000080c000-0000000000810000 UC|WC|WT|WB
+ ACPIMemoryNVS 0000000000810000-0000000000900000 UC|WC|WT|WB
+ BootServicesData 0000000000900000-0000000001780000 UC|WC|WT|WB
+ ConventionalMemory 0000000001780000-000000000bb75000 UC|WC|WT|WB
+ LoaderData 000000000bb75000-000000001bb75000 UC|WC|WT|WB
+ BootServicesData 000000001bb75000-000000001bb95000 UC|WC|WT|WB
+ ConventionalMemory 000000001bb95000-000000001dd24000 UC|WC|WT|WB
+ LoaderCode 000000001dd24000-000000001ddfe000 UC|WC|WT|WB
+ ConventionalMemory 000000001ddfe000-000000001de99000 UC|WC|WT|WB
+ BootServicesData 000000001de99000-000000001dea9000 UC|WC|WT|WB
+ LoaderData 000000001dea9000-000000001deac000 UC|WC|WT|WB
+ BootServicesData 000000001deac000-000000001e58e000 UC|WC|WT|WB
+ BootServicesCode 000000001e58e000-000000001e642000 UC|WC|WT|WB
+ BootServicesData 000000001e642000-000000001e672000 UC|WC|WT|WB
+ BootServicesCode 000000001e672000-000000001e753000 UC|WC|WT|WB
+ BootServicesData 000000001e753000-000000001e7b8000 UC|WC|WT|WB
+ BootServicesCode 000000001e7b8000-000000001e7c1000 UC|WC|WT|WB
+ BootServicesData 000000001e7c1000-000000001e7c6000 UC|WC|WT|WB
+ BootServicesCode 000000001e7c6000-000000001e7e6000 UC|WC|WT|WB
+ BootServicesData 000000001e7e6000-000000001e7e8000 UC|WC|WT|WB
+ BootServicesCode 000000001e7e8000-000000001e7f2000 UC|WC|WT|WB
+ BootServicesData 000000001e7f2000-000000001e7f3000 UC|WC|WT|WB
+ BootServicesCode 000000001e7f3000-000000001e7fb000 UC|WC|WT|WB
+ BootServicesData 000000001e7fb000-000000001e7fc000 UC|WC|WT|WB
+ BootServicesCode 000000001e7fc000-000000001e80c000 UC|WC|WT|WB
+ BootServicesData 000000001e80c000-000000001e80f000 UC|WC|WT|WB
+ BootServicesCode 000000001e80f000-000000001e812000 UC|WC|WT|WB
+ BootServicesData 000000001e812000-000000001e819000 UC|WC|WT|WB
+ BootServicesCode 000000001e819000-000000001e82b000 UC|WC|WT|WB
+ BootServicesData 000000001e82b000-000000001e834000 UC|WC|WT|WB
+ BootServicesCode 000000001e834000-000000001e842000 UC|WC|WT|WB
+ BootServicesData 000000001e842000-000000001e851000 UC|WC|WT|WB
+ BootServicesCode 000000001e851000-000000001e85c000 UC|WC|WT|WB
+ BootServicesData 000000001e85c000-000000001e867000 UC|WC|WT|WB
+ BootServicesCode 000000001e867000-000000001e87d000 UC|WC|WT|WB
+ BootServicesData 000000001e87d000-000000001e886000 UC|WC|WT|WB
+ BootServicesCode 000000001e886000-000000001e8aa000 UC|WC|WT|WB
+ BootServicesData 000000001e8aa000-000000001e8ad000 UC|WC|WT|WB
+ BootServicesCode 000000001e8ad000-000000001e8c1000 UC|WC|WT|WB
+ BootServicesData 000000001e8c1000-000000001e8c8000 UC|WC|WT|WB
+ BootServicesCode 000000001e8c8000-000000001e8e1000 UC|WC|WT|WB
+ BootServicesData 000000001e8e1000-000000001e8e4000 UC|WC|WT|WB
+ BootServicesCode 000000001e8e4000-000000001e8ea000 UC|WC|WT|WB
+ BootServicesData 000000001e8ea000-000000001e8ec000 UC|WC|WT|WB
+ BootServicesCode 000000001e8ec000-000000001e8ff000 UC|WC|WT|WB
+ BootServicesData 000000001e8ff000-000000001e904000 UC|WC|WT|WB
+ BootServicesCode 000000001e904000-000000001e91a000 UC|WC|WT|WB
+ BootServicesData 000000001e91a000-000000001e91c000 UC|WC|WT|WB
+ BootServicesCode 000000001e91c000-000000001e929000 UC|WC|WT|WB
+ BootServicesData 000000001e929000-000000001e92c000 UC|WC|WT|WB
+ BootServicesCode 000000001e92c000-000000001e932000 UC|WC|WT|WB
+ BootServicesData 000000001e932000-000000001e934000 UC|WC|WT|WB
+ BootServicesCode 000000001e934000-000000001e935000 UC|WC|WT|WB
+ BootServicesData 000000001e935000-000000001e936000 UC|WC|WT|WB
+ BootServicesCode 000000001e936000-000000001e93b000 UC|WC|WT|WB
+ BootServicesData 000000001e93b000-000000001e940000 UC|WC|WT|WB
+ BootServicesCode 000000001e940000-000000001e94c000 UC|WC|WT|WB
+ BootServicesData 000000001e94c000-000000001e94e000 UC|WC|WT|WB
+ BootServicesCode 000000001e94e000-000000001e96b000 UC|WC|WT|WB
+ BootServicesData 000000001e96b000-000000001e96c000 UC|WC|WT|WB
+ BootServicesCode 000000001e96c000-000000001e976000 UC|WC|WT|WB
+ BootServicesData 000000001e976000-000000001e977000 UC|WC|WT|WB
+ BootServicesCode 000000001e977000-000000001e978000 UC|WC|WT|WB
+ BootServicesData 000000001e978000-000000001e97a000 UC|WC|WT|WB
+ BootServicesCode 000000001e97a000-000000001e98f000 UC|WC|WT|WB
+ BootServicesData 000000001e98f000-000000001e992000 UC|WC|WT|WB
+ BootServicesCode 000000001e992000-000000001e994000 UC|WC|WT|WB
+ BootServicesData 000000001e994000-000000001e996000 UC|WC|WT|WB
+ BootServicesCode 000000001e996000-000000001e99d000 UC|WC|WT|WB
+ BootServicesData 000000001e99d000-000000001e9a4000 UC|WC|WT|WB
+ BootServicesCode 000000001e9a4000-000000001e9a8000 UC|WC|WT|WB
+ BootServicesData 000000001e9a8000-000000001e9ae000 UC|WC|WT|WB
+ BootServicesCode 000000001e9ae000-000000001e9b2000 UC|WC|WT|WB
+ BootServicesData 000000001e9b2000-000000001e9b4000 UC|WC|WT|WB
+ BootServicesCode 000000001e9b4000-000000001e9ef000 UC|WC|WT|WB
+ BootServicesData 000000001e9ef000-000000001e9f1000 UC|WC|WT|WB
+ BootServicesCode 000000001e9f1000-000000001e9f5000 UC|WC|WT|WB
+ BootServicesData 000000001e9f5000-000000001e9fd000 UC|WC|WT|WB
+ BootServicesCode 000000001e9fd000-000000001ea00000 UC|WC|WT|WB
+ BootServicesData 000000001ea00000-000000001ec02000 UC|WC|WT|WB
+ BootServicesCode 000000001ec02000-000000001ec0a000 UC|WC|WT|WB
+ BootServicesData 000000001ec0a000-000000001ec0f000 UC|WC|WT|WB
+ RuntimeServicesData 000000001ec0f000-000000001ecd0000 UC|WC|WT|WB|RT
+ BootServicesCode 000000001ecd0000-000000001ece5000 UC|WC|WT|WB
+ BootServicesData 000000001ece5000-000000001ece6000 UC|WC|WT|WB
+ BootServicesCode 000000001ece6000-000000001ecea000 UC|WC|WT|WB
+ BootServicesData 000000001ecea000-000000001eced000 UC|WC|WT|WB
+ BootServicesCode 000000001eced000-000000001ecf6000 UC|WC|WT|WB
+ BootServicesData 000000001ecf6000-000000001ecf7000 UC|WC|WT|WB
+ BootServicesCode 000000001ecf7000-000000001ecf8000 UC|WC|WT|WB
+ BootServicesData 000000001ecf8000-000000001ecfa000 UC|WC|WT|WB
+ BootServicesCode 000000001ecfa000-000000001ecfd000 UC|WC|WT|WB
+ BootServicesData 000000001ecfd000-000000001ecfe000 UC|WC|WT|WB
+ BootServicesCode 000000001ecfe000-000000001ecff000 UC|WC|WT|WB
+ BootServicesData 000000001ecff000-000000001ed00000 UC|WC|WT|WB
+ BootServicesCode 000000001ed00000-000000001ed16000 UC|WC|WT|WB
+ BootServicesData 000000001ed16000-000000001ed17000 UC|WC|WT|WB
+ BootServicesCode 000000001ed17000-000000001ed19000 UC|WC|WT|WB
+ BootServicesData 000000001ed19000-000000001ed2c000 UC|WC|WT|WB
+ BootServicesCode 000000001ed2c000-000000001ed2e000 UC|WC|WT|WB
+ BootServicesData 000000001ed2e000-000000001f12e000 UC|WC|WT|WB
+ BootServicesCode 000000001f12e000-000000001f132000 UC|WC|WT|WB
+ BootServicesData 000000001f132000-000000001f133000 UC|WC|WT|WB
+ BootServicesCode 000000001f133000-000000001f137000 UC|WC|WT|WB
+ BootServicesData 000000001f137000-000000001f13d000 UC|WC|WT|WB
+ BootServicesCode 000000001f13d000-000000001f147000 UC|WC|WT|WB
+ BootServicesData 000000001f147000-000000001f148000 UC|WC|WT|WB
+ BootServicesCode 000000001f148000-000000001f14d000 UC|WC|WT|WB
+ BootServicesData 000000001f14d000-000000001f4ed000 UC|WC|WT|WB
+ RuntimeServicesData 000000001f4ed000-000000001f5ed000 UC|WC|WT|WB|RT
+ RuntimeServicesCode 000000001f5ed000-000000001f6ed000 UC|WC|WT|WB|RT
+ ReservedMemory 000000001f6ed000-000000001f76d000 UC|WC|WT|WB
+ ACPIReclaimMemory 000000001f76d000-000000001f77f000 UC|WC|WT|WB
+ ACPIMemoryNVS 000000001f77f000-000000001f7ff000 UC|WC|WT|WB
+ BootServicesData 000000001f7ff000-000000001fe00000 UC|WC|WT|WB
+ ConventionalMemory 000000001fe00000-000000001fe77000 UC|WC|WT|WB
+ BootServicesData 000000001fe77000-000000001fe97000 UC|WC|WT|WB
+ BootServicesCode 000000001fe97000-000000001feca000 UC|WC|WT|WB
+ BootServicesData 000000001feca000-000000001fedb000 UC|WC|WT|WB
+ BootServicesCode 000000001fedb000-000000001fef4000 UC|WC|WT|WB
+ RuntimeServicesData 000000001fef4000-000000001ff78000 UC|WC|WT|WB|RT
+ ACPIMemoryNVS 000000001ff78000-0000000020000000 UC|WC|WT|WB
+ MemoryMappedIO 00000000ffc00000-0000000100000000 UC|RT
+ ReservedMemory 000000fd00000000-0000010000000000
=> efi tables
000000001f8edf98 ee4e5898-3914-4259-9d6e-dc7bd79403cf EFI_LZMA_COMPRESSED
diff --git a/include/efi.h b/include/efi.h
index b98871fedad..71234d1b6fe 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -682,6 +682,24 @@ int efi_get_mmap(struct efi_mem_desc **descp, int *sizep, uint *keyp,
void efi_show_tables(struct efi_system_table *systab);
/**
+ * efi_show_memmap() - print an EFI memory map
+ *
+ * Prints one line per descriptor with the memory type name, the physical
+ * start and end address and the attributes as a '|'-separated list of
+ * mnemonics.
+ *
+ * The virtual addresses of the descriptors are not shown: the map is
+ * identity mapped before SetVirtualAddressMap() is called, so the field
+ * carries no information at this point.
+ *
+ * @map: memory map to print
+ * @map_size: size of the memory map in bytes
+ * @desc_size: size of a single descriptor in bytes
+ */
+void efi_show_memmap(struct efi_mem_desc *map, efi_uintn_t map_size,
+ efi_uintn_t desc_size);
+
+/**
* efi_get_basename() - Get the default filename to use when loading
*
* E.g. this function returns BOOTAA64.EFI for an aarch target
generated by cgit v1.3.1 (git 2.54.0) at 2026-09-04 12:41:48 +0000