1922df2010
Add support for the TPM2_Startup command. Change the command file and the help accordingly. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 2018 Bootlin
|
|
* Author: Miquel Raynal <miquel.raynal@bootlin.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <log.h>
|
|
#include <tpm-common.h>
|
|
#include <tpm-v2.h>
|
|
#include "tpm-user-utils.h"
|
|
|
|
static int do_tpm2_startup(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[])
|
|
{
|
|
enum tpm2_startup_types mode;
|
|
|
|
if (argc != 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
if (!strcasecmp("TPM2_SU_CLEAR", argv[1])) {
|
|
mode = TPM2_SU_CLEAR;
|
|
} else if (!strcasecmp("TPM2_SU_STATE", argv[1])) {
|
|
mode = TPM2_SU_STATE;
|
|
} else {
|
|
printf("Couldn't recognize mode string: %s\n", argv[1]);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
return report_return_code(tpm2_startup(mode));
|
|
}
|
|
|
|
static cmd_tbl_t tpm2_commands[] = {
|
|
U_BOOT_CMD_MKENT(info, 0, 1, do_tpm_info, "", ""),
|
|
U_BOOT_CMD_MKENT(init, 0, 1, do_tpm_init, "", ""),
|
|
U_BOOT_CMD_MKENT(startup, 0, 1, do_tpm2_startup, "", ""),
|
|
};
|
|
|
|
cmd_tbl_t *get_tpm_commands(unsigned int *size)
|
|
{
|
|
*size = ARRAY_SIZE(tpm2_commands);
|
|
|
|
return tpm2_commands;
|
|
}
|
|
|
|
U_BOOT_CMD(tpm, CONFIG_SYS_MAXARGS, 1, do_tpm, "Issue a TPMv2.x command",
|
|
"<command> [<arguments>]\n"
|
|
"\n"
|
|
"info\n"
|
|
" Show information about the TPM.\n"
|
|
"init\n"
|
|
" Initialize the software stack. Always the first command to issue.\n"
|
|
"startup <mode>\n"
|
|
" Issue a TPM2_Startup command.\n"
|
|
" <mode> is one of:\n"
|
|
" * TPM2_SU_CLEAR (reset state)\n"
|
|
" * TPM2_SU_STATE (preserved state)\n"
|
|
);
|