u-boot.git/drivers/tpm, branch v2022.01-rc2

tpm: Use the new API on tpm2 spi driver

2021-11-10T19:57:54Z

Convert our SPI TPM driver and use the newly added API Reviewed-by: Simon Glass Signed-off-by: Ilias Apalodimas

tpm2: Add a TPMv2 MMIO TIS driver

2021-11-10T19:57:54Z

Add support for devices that expose a TPMv2 though MMIO. Apart from those devices, we can use the driver in our QEMU setups and test TPM related code which is difficult to achieve using the sandbox driver (e.g test the EFI TCG2 protocol). It's worth noting that a previous patch added TPMv2 TIS core functions, which the current driver is consuming. Reviewed-by: Simon Glass Signed-off-by: Ilias Apalodimas

tpm2: Introduce TIS tpm core

2021-11-10T19:57:54Z

There's a lot of code duplication in U-Boot right now. All the TPM TIS compatible drivers we have at the moment have their own copy of a TIS implementation. So let's create a common layer which implements the core TIS functions. Any driver added from now own, which is compatible with the TIS spec, will only have to provide the underlying bus communication mechanisms. Signed-off-by: Ilias Apalodimas

tpm: refactor function names for LPC based TPMs

2021-11-10T19:57:54Z

With the upcoming TPM2 API, some of the functions name are part of the new header file. So switch conflicting internal function names and defines. Reviewed-by: Simon Glass Reviewed-by: Heinrich Schuchardt Signed-off-by: Ilias Apalodimas

tpm: refactor function names and macros for infineon v1.2 TPM

2021-11-10T19:57:54Z

With the upcoming TPM2 API, some of the functions name are part of the new header file. So switch conflicting internal function names and defines. Reviewed-by: Simon Glass Signed-off-by: Ilias Apalodimas

treewide: Simply conditions with the new OF_REAL

2021-09-25T15:46:15Z

Use this new Kconfig to simplify the compilation conditions where appropriate. Signed-off-by: Simon Glass

drivers: tpm2: update reset gpio semantics

2021-09-24T18:36:50Z

Use the more generic reset-gpios property name. Signed-off-by: Jorge Ramirez-Ortiz Acked-by: Michal Simek Acked-by: Ilias Apalodimas

sandbox: tpm: Support extending a PCR multiple times

2021-08-01T15:05:24Z

It is fairly easy to handle this case and it makes the emulator more useful, since PCRs are commonly extended several times. Add support for this, using U-Boot's sha256 support. For now sandbox only supports a single PCR, but that is enough for the tests that currently exist. Signed-off-by: Simon Glass

sandbox: tpm: Correct handling of SANDBOX_TPM_PCR_NB

2021-08-01T15:05:24Z

This is the number of PCRs, so the current check is off by one. Also the map itself should not be checked, just the resulting pcr_index, to avoid confusing people who read the code. Fix these problems. Signed-off-by: Simon Glass

sandbox: tpm: Support storing device state in tpm2

2021-08-01T15:05:24Z

At present the tpm2 emulator does not support storing the device state. Add this so we can handle the normal vboot flow through the sandbox executables (VPL->SPL etc.) with the TPM contents staying in place. Note: sandbox has not yet been converted to use livetree for the state information, since livetree does not yet support writing to the tree. Signed-off-by: Simon Glass