u-boot.git/include/tpm-common.h, branch master

tpm: update descriptions in tpm headers

2025-01-09T17:11:10+00:00

* Provide a link to 'TPM 2.0 Library Specification'
* Remove outdated comment for TPM2_NUM_PCR_BANKS.
  The value 16 can be found in the current standard
  TCG TSS 2.0 Overview and Common Structures Specification 1.0, rev 10
* Describe some of the structures in Sphinx style.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Ilias Apalodimas 
Reviewed-by: Miquel Raynal 
Signed-off-by: Ilias Apalodimas

tpm: Keep the active PCRs in the chip private data

2025-01-07T13:45:51+00:00

We have a lot of code trying to reason about the active TPM PCRs
when creating an EventLog. Since changing the active banks can't
be done on the fly and requires a TPM reset,  let's store them
in the chip private data instead.

Upcoming patches will use this during the EventLog creation.

Signed-off-by: Raymond Mao 
Signed-off-by: Ilias Apalodimas

tpm: Implement tpm_auto_start() for TPMv1.2

2023-02-28T07:44:33+00:00

Add an implementation of this, moving the common call to tpm_init() up
into the common API implementation.

Add a test.

Reviewed-by: Ilias Apalodimas 
Signed-off-by: Simon Glass 
Signed-off-by: Ilias Apalodimas

tpm: Allow reporting the internal state

2022-09-03T13:59:05+00:00

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:

2022-01-19T17:11:34+00:00

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

tpm: Add TPM2 support for read/write values

2021-03-02T20:53:37+00:00

Implement this API function for TPM2.

Signed-off-by: Simon Glass 
Acked-by: Ilias Apalodimas

common: Drop asm/global_data.h from common header

2021-02-02T20:33:42+00:00

Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include  at all, so
remove that include.

Signed-off-by: Simon Glass 
Signed-off-by: Tom Rini

command: Remove the cmd_tbl_t typedef

2020-05-18T22:36:55+00:00

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

tpm: add a helper to iterate on all tpm devices

2020-02-06T02:33:46+00:00

This add a helper for_each_tpm_device that run
through all the tpm (1.x and 2.0) devices.

Signed-off-by: Philippe Reynes 
Reviewed-by: Miquel Raynal

tpm: Export tpm_clear_and_reenable()

2018-12-05T13:01:34+00:00

This function is intended to be exported but is not. Add it to the header
file.

Signed-off-by: Simon Glass