tpm: use more than sha256 on pcr_extend
The current tpm2_pcr_extend is hardcoded using SHA256.
Let's make the actual command to the TPM2 configurable so we can support
a wider range of algorithms and keep the current command line as-is i.e
limited to SHA256 only
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/tpm-v2.h b/include/tpm-v2.h
index 74c14fe..f1826ff 100644
--- a/include/tpm-v2.h
+++ b/include/tpm-v2.h
@@ -309,11 +309,14 @@
*
* @dev TPM device
* @index Index of the PCR
+ * @algorithm Algorithm used, defined in 'enum tpm2_algorithms'
* @digest Value representing the event to be recorded
+ * @digest_len len of the hash
*
* @return code of the operation
*/
-u32 tpm2_pcr_extend(struct udevice *dev, u32 index, const uint8_t *digest);
+u32 tpm2_pcr_extend(struct udevice *dev, u32 index, u32 algorithm,
+ const u8 *digest, u32 digest_len);
/**
* Issue a TPM2_PCR_Read command.