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efi: Support the efi command in the app

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At present the 'efi' command only works in the EFI payload. Update it to
work in the app too, so the memory map can be examined.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Simon Glass
2022-01-04 03:51:12 -07:00
committed by Heinrich Schuchardt
parent ce1dc0cc17
commit 25a326b006
4 changed files with 82 additions and 16 deletions
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2
cmd/Makefile
View File

@@ -58,7 +58,7 @@ obj-$(CONFIG_CMD_EXTENSION) += extension_board.o
obj-$(CONFIG_CMD_ECHO) += echo.o
obj-$(CONFIG_ENV_IS_IN_EEPROM) += eeprom.o
obj-$(CONFIG_CMD_EEPROM) += eeprom.o
obj-$(CONFIG_EFI_STUB) += efi.o
obj-$(CONFIG_EFI) += efi.o
obj-$(CONFIG_CMD_EFIDEBUG) += efidebug.o
obj-$(CONFIG_CMD_ELF) += elf.o
obj-$(CONFIG_HUSH_PARSER) += exit.o

48
cmd/efi.c
View File

@@ -13,6 +13,8 @@
#include <sort.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
static const char *const type_name[] = {
"reserved",
"loader_code",
@@ -217,37 +219,53 @@ static void efi_print_mem_table(struct efi_mem_desc *desc, int desc_size,
static int do_efi_mem(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct efi_mem_desc *desc;
struct efi_entry_memmap *map;
struct efi_mem_desc *orig, *desc;
uint version, key;
int desc_size;
int size, ret;
bool skip_bs;
skip_bs = !argc || *argv[0] != 'a';
ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
switch (ret) {
case -ENOENT:
printf("No EFI table available\n");
goto done;
case -EPROTONOSUPPORT:
printf("Incorrect EFI table version\n");
goto done;
if (IS_ENABLED(CONFIG_EFI_APP)) {
ret = efi_get_mmap(&orig, &size, &key, &desc_size, &version);
if (ret) {
printf("Cannot read memory map (err=%d)\n", ret);
return CMD_RET_FAILURE;
}
} else {
struct efi_entry_memmap *map;
ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
switch (ret) {
case -ENOENT:
printf("No EFI table available\n");
goto done;
case -EPROTONOSUPPORT:
printf("Incorrect EFI table version\n");
goto done;
}
orig = map->desc;
desc_size = map->desc_size;
version = map->version;
}
printf("EFI table at %lx, memory map %p, size %x, version %x, descr. size %#x\n",
gd->arch.table, map, size, map->version, map->desc_size);
if (map->version != EFI_MEM_DESC_VERSION) {
printf("EFI table at %lx, memory map %p, size %x, key %x, version %x, descr. size %#x\n",
gd->arch.table, orig, size, key, version, desc_size);
if (version != EFI_MEM_DESC_VERSION) {
printf("Incorrect memory map version\n");
ret = -EPROTONOSUPPORT;
goto done;
}
desc = efi_build_mem_table(map->desc, size, map->desc_size, skip_bs);
desc = efi_build_mem_table(orig, size, desc_size, skip_bs);
if (!desc) {
ret = -ENOMEM;
goto done;
}
efi_print_mem_table(desc, map->desc_size, skip_bs);
efi_print_mem_table(desc, desc_size, skip_bs);
free(desc);
if (IS_ENABLED(CONFIG_EFI_APP))
free(orig);
done:
if (ret)
printf("Error: %d\n", ret);