diff options
| author | Raymond Mao <raymond.mao@linaro.org> | 2025-01-27 06:58:46 -0800 |
|---|---|---|
| committer | Ilias Apalodimas <ilias.apalodimas@linaro.org> | 2025-01-28 08:58:41 +0200 |
| commit | 6d8e52a6e350e1dbf450d02fccdb2ac2b0c036e4 (patch) | |
| tree | 0c416059b146175926a4a6414df061cd4a9268bd /cmd/tpm-v2.c | |
| parent | a517796cfa5d8f4ca2f0c11c78c24a08a102c047 (diff) | |
tpm: add TPM2_Shutdown command
TPM2_shutdown command is sharing same structure and logics with
TPM2_startup, thus this patch extends the existing startup APIs and
cmd functions to support shutdown instead of created new ones.
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Diffstat (limited to 'cmd/tpm-v2.c')
| -rw-r--r-- | cmd/tpm-v2.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/cmd/tpm-v2.c b/cmd/tpm-v2.c index 8517833f861..a6d57ee7c49 100644 --- a/cmd/tpm-v2.c +++ b/cmd/tpm-v2.c @@ -18,11 +18,14 @@ static int do_tpm2_startup(struct cmd_tbl *cmdtp, int flag, int argc, enum tpm2_startup_types mode; struct udevice *dev; int ret; + bool bon = true; ret = get_tpm(&dev); if (ret) return ret; - if (argc != 2) + + /* argv[2] is optional to perform a TPM2_CC_SHUTDOWN */ + if (argc > 3 || (argc == 3 && strcasecmp("off", argv[2]))) return CMD_RET_USAGE; if (!strcasecmp("TPM2_SU_CLEAR", argv[1])) { @@ -34,7 +37,10 @@ static int do_tpm2_startup(struct cmd_tbl *cmdtp, int flag, int argc, return CMD_RET_FAILURE; } - return report_return_code(tpm2_startup(dev, mode)); + if (argv[2]) + bon = false; + + return report_return_code(tpm2_startup(dev, bon, mode)); } static int do_tpm2_self_test(struct cmd_tbl *cmdtp, int flag, int argc, @@ -420,11 +426,13 @@ U_BOOT_CMD(tpm2, CONFIG_SYS_MAXARGS, 1, do_tpm, "Issue a TPMv2.x command", " Initialize the software stack. Always the first command to issue.\n" " 'tpm startup' is the only acceptable command after a 'tpm init' has been\n" " issued\n" -"startup <mode>\n" +"startup <mode> [<op>]\n" " Issue a TPM2_Startup command.\n" " <mode> is one of:\n" " * TPM2_SU_CLEAR (reset state)\n" " * TPM2_SU_STATE (preserved state)\n" +" <op>:\n" +" * off - To shutdown the TPM\n" "self_test <type>\n" " Test the TPM capabilities.\n" " <type> is one of:\n" |