u-boot.git/lib/tpm_api.c, branch v2023.01 Unnamed repository; edit this file 'description' to name the repository. tpm: Require a digest source when extending the PCR 2022-09-03T13:53:58+00:00 Simon Glass sjg@chromium.org 2022-08-31T03:05:32+00:00 a557d258c6be49ec1253947a227189de149971df This feature is used for measured boot, so we can add a log entry to the TCPA with some information about where the digest comes from. It is not currently supported in the TPM drivers, but add it to the API so that code which expects it can signal its request. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> 
This feature is used for measured boot, so we can add a log entry to the
TCPA with some information about where the digest comes from. It is not
currently supported in the TPM drivers, but add it to the API so that
code which expects it can signal its request.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
tpm: rng: Add driver model interface for TPM RNG device 2022-08-02T20:50:02+00:00 Sughosh Ganu sughosh.ganu@linaro.org 2022-07-22T16:02:04+00:00 e67ffb5aa5ab03a89305f4575ad3142486f9a306 The TPM device has a builtin random number generator(RNG) functionality. Expose the RNG functions of the TPM device to the driver model so that they can be used by the EFI_RNG_PROTOCOL if the protocol is installed. Also change the function arguments and return type of the random number functions to comply with the driver model api. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> 
The TPM device has a builtin random number generator(RNG)
functionality. Expose the RNG functions of the TPM device to the
driver model so that they can be used by the EFI_RNG_PROTOCOL if the
protocol is installed.

Also change the function arguments and return type of the random
number functions to comply with the driver model api.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
tpm: Export the TPM-version functions 2022-08-02T20:50:02+00:00 Simon Glass sjg@chromium.org 2022-07-22T16:02:02+00:00 5e5937822a50224631963402ff3c033d2524a55f These functions should really be available outside the TPM code, so that other callers can find out which version the TPM is. Rename them to have a tpm_ prefix() and add them to the header file. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> 
These functions should really be available outside the TPM code, so that
other callers can find out which version the TPM is. Rename them to have
a tpm_ prefix() and add them to the header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
tpm: Add TPM2 support for write_lock 2021-03-02T20:53:37+00:00 Simon Glass sjg@chromium.org 2021-02-06T21:23:41+00:00 7785bc1d5f94d28497bef6935ecbaa1b0ddd3e26 Implement this API function for TPM2. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> 
Implement this API function for TPM2.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
tpm: Add TPM2 support for read/write values 2021-03-02T20:53:37+00:00 Simon Glass sjg@chromium.org 2021-02-06T21:23:40+00:00 6719cbe31afef2cba4bc10b33350b38c4a51c3ac Implement this API function for TPM2. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> 
Implement this API function for TPM2.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
tpm: Add a basic API implementation for TPMv2 2021-03-02T20:53:37+00:00 Simon Glass sjg@chromium.org 2021-02-06T21:23:37+00:00 b8eb9210e778cbc2ec2e1868f71a2ce5a883d5c3 Add support for TPMv2 versions of API functions. So far this is not complete as the standard is quite large, but it implements everything currently available for TPMv2 in U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> 
Add support for TPMv2 versions of API functions. So far this is not
complete as the standard is quite large, but it implements everything
currently available for TPMv2 in U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
tpm: Add an API that can support v1.2 and v2 2021-03-02T20:53:37+00:00 Simon Glass sjg@chromium.org 2021-02-06T21:23:35+00:00 bfe8fa262c788b817a8de66f78b3b2d9c22fa0d1 There are two different TPM standards. U-Boot supports both but each has its own set of functions. We really need a single TPM API that can call one or the other. This is not always possible as there are some differences between the two standards, but it is mostly possible. Add an API to handle this. So far it is not plumbed into the build and only supports TPMv1. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> 
There are two different TPM standards. U-Boot supports both but each has
its own set of functions. We really need a single TPM API that can call
one or the other. This is not always possible as there are some
differences between the two standards, but it is mostly possible.

Add an API to handle this. So far it is not plumbed into the build and
only supports TPMv1.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>