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author | Tom Rini <trini@konsulko.com> | 2020-05-18 15:17:29 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2020-05-18 15:17:29 +0300 |
commit | ed9a3aa6452f57af65eb74f73bd2a54c3a2f4b03 (patch) | |
tree | 360fcb8e12955e02f8454e5f901d7891cf4168b6 /cmd/efidebug.c | |
parent | 515f613253cf0a892c3a321770ab927fa3d925cf (diff) | |
parent | 7f44c7e281ef228d60625f5acdcbe68a847256bd (diff) | |
download | u-boot-ed9a3aa6452f57af65eb74f73bd2a54c3a2f4b03.tar.xz |
Merge tag 'efi-2020-07-rc3' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi
Pull request for UEFI sub-system for efi-2020-07-rc3
A series of patches introduces the possibility to manage UEFI variables
via an OP-TEE module. CONFIG_EFI_MM_COMM_TEE enables this. If this
option is not specified the U-Boot behavior remains unchanged. A defconfig
is provided for compile testing (lx2160ardb_tfa_stmm_defconfig).
An incorrect UEFI memory allocation for fsl-layerscape is fixed
Diffstat (limited to 'cmd/efidebug.c')
-rw-r--r-- | cmd/efidebug.c | 58 |
1 files changed, 57 insertions, 1 deletions
diff --git a/cmd/efidebug.c b/cmd/efidebug.c index 5cc0a41af3..f020d95dbb 100644 --- a/cmd/efidebug.c +++ b/cmd/efidebug.c @@ -1165,6 +1165,58 @@ static int do_efi_test(cmd_tbl_t *cmdtp, int flag, return cp->cmd(cmdtp, flag, argc, argv); } +/** + * do_efi_query_info() - QueryVariableInfo EFI service + * + * @cmdtp: Command table + * @flag: Command flag + * @argc: Number of arguments + * @argv: Argument array + * Return: CMD_RET_SUCCESS on success, + * CMD_RET_USAGE or CMD_RET_FAILURE on failure + * + * Implement efidebug "test" sub-command. + */ + +static int do_efi_query_info(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + efi_status_t ret; + u32 attr = 0; + u64 max_variable_storage_size; + u64 remain_variable_storage_size; + u64 max_variable_size; + int i; + + for (i = 1; i < argc; i++) { + if (!strcmp(argv[i], "-bs")) + attr |= EFI_VARIABLE_BOOTSERVICE_ACCESS; + else if (!strcmp(argv[i], "-rt")) + attr |= EFI_VARIABLE_RUNTIME_ACCESS; + else if (!strcmp(argv[i], "-nv")) + attr |= EFI_VARIABLE_NON_VOLATILE; + else if (!strcmp(argv[i], "-at")) + attr |= + EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS; + } + + ret = EFI_CALL(efi_query_variable_info(attr, + &max_variable_storage_size, + &remain_variable_storage_size, + &max_variable_size)); + if (ret != EFI_SUCCESS) { + printf("Error: Cannot query UEFI variables, r = %lu\n", + ret & ~EFI_ERROR_MASK); + return CMD_RET_FAILURE; + } + + printf("Max storage size %llu\n", max_variable_storage_size); + printf("Remaining storage size %llu\n", remain_variable_storage_size); + printf("Max variable size %llu\n", max_variable_size); + + return CMD_RET_SUCCESS; +} + static cmd_tbl_t cmd_efidebug_sub[] = { U_BOOT_CMD_MKENT(boot, CONFIG_SYS_MAXARGS, 1, do_efi_boot_opt, "", ""), U_BOOT_CMD_MKENT(devices, CONFIG_SYS_MAXARGS, 1, do_efi_show_devices, @@ -1181,6 +1233,8 @@ static cmd_tbl_t cmd_efidebug_sub[] = { "", ""), U_BOOT_CMD_MKENT(test, CONFIG_SYS_MAXARGS, 1, do_efi_test, "", ""), + U_BOOT_CMD_MKENT(query, CONFIG_SYS_MAXARGS, 1, do_efi_query_info, + "", ""), }; /** @@ -1252,7 +1306,9 @@ static char efidebug_help_text[] = "efidebug tables\n" " - show UEFI configuration tables\n" "efidebug test bootmgr\n" - " - run simple bootmgr for test\n"; + " - run simple bootmgr for test\n" + "efidebug query [-nv][-bs][-rt][-at]\n" + " - show size of UEFI variables store\n"; #endif U_BOOT_CMD( |