u-boot.git/cmd/tpm-common.c, branch v2023.07.01

tpm: Add 'tpm autostart' shell command

2023-06-13T05:51:07Z

For a TPM device to be operational we need to initialize it and perform its startup sequence. The 'tpm init' command currently calls tpm_init() which ends up calling the ->open() per-device callback and performs the initial hardware configuration as well as requesting locality 0 for the caller. There no code that currently calls tpm_init() without following up with a tpm_startup() and tpm_self_test_full() or tpm_continue_self_test(). So let's add a 'tpm autostart' command and call tpm_auto_start() which leaves the device in an operational state. It's worth noting that calling tpm_init() only, doesn't allow a someone to use the TPM since the startup sequence is mandatory. We always repeat the pattern of calling - tpm_init() - tpm_startup() - tpm_self_test_full() or tpm_continue_self_test() Reviewed-by: Simon Glass Signed-off-by: Ilias Apalodimas

tpm: Allow reporting the internal state

2022-09-03T13:59:05Z

It is useful to read information about the current TPM state, where supported, e.g. for debugging purposes when verified boot fails. Add support for this to the TPM interface as well as Cr50. Add a simple sandbox test. Signed-off-by: Simon Glass Reviewed-by: Ilias Apalodimas Signed-off-by: Ilias Apalodimas

doc: replace @return by Return:

2022-01-19T17:11:34Z

Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt

global: Convert simple_strtoul() with decimal to dectoul()

2021-08-02T17:32:14Z

It is a pain to have to specify the value 10 in each call. Add a new dectoul() function and update the code to use it. Signed-off-by: Simon Glass

global: Convert simple_strtoul() with hex to hextoul()

2021-08-02T17:32:14Z

It is a pain to have to specify the value 16 in each call. Add a new hextoul() function and update the code to use it. Add a proper comment to simple_strtoul() while we are here. Signed-off-by: Simon Glass

command: Remove the cmd_tbl_t typedef

2020-05-18T22:36:55Z

We should not use typedefs in U-Boot. They cannot be used as forward declarations which means that header files must include the full header to access them. Drop the typedef and rename the struct to remove the _s suffix which is now not useful. This requires quite a few header-file additions. Signed-off-by: Simon Glass

dm: core: Create a new header file for 'compat' features

2020-02-06T02:33:46Z

At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass

cmd: tpm: add a subcommand device

2020-02-06T02:33:46Z

The command tpm (and tpm2) search the tpm and use it. On sandbox, there are two tpm (tpm 1.x and tpm 2.0). So the command tpm and tpm2 are always executed with the first tpm (tpm 1.x), and the command tpm2 always fails. This add a subcommand device to command tpm and command tpm2. Then the command tpm and tpm2 use the device selected with the subcommand device. To be compatible with previous behaviour, if the subcommand device is not used before a tpm (or tpm2) command, the device 0 is selected. Signed-off-by: Philippe Reynes Reviewed-by: Miquel Raynal

env: Move env_set_ulong() to env.h

2019-08-11T20:43:41Z

Move env_set_ulong() over to the new header file. Signed-off-by: Simon Glass Acked-by: Joe Hershberger

tpm: Convert to use a device parameter

2018-11-29T16:30:06Z

At present many TPM calls assume there is only one TPM in the system and look up this TPM themselves. This is inconsistent with driver model, which expects all driver methods to have a device parameter. Update the code to correct this. Signed-off-by: Simon Glass