From eadcbc7896e8d3eefafc8a34dee125a7d7eecead Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sat, 6 Feb 2021 14:23:39 -0700 Subject: tpm: Add an implementation of define_space Add support for this so that the TPM can be set up for use with Chromium OS verified boot. Signed-off-by: Simon Glass Acked-by: Ilias Apalodimas --- include/tpm-v2.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'include/tpm-v2.h') diff --git a/include/tpm-v2.h b/include/tpm-v2.h index 56eaa65815..aa8b6512b2 100644 --- a/include/tpm-v2.h +++ b/include/tpm-v2.h @@ -240,6 +240,7 @@ enum tpm2_command_codes { TPM2_CC_CLEAR = 0x0126, TPM2_CC_CLEARCONTROL = 0x0127, TPM2_CC_HIERCHANGEAUTH = 0x0129, + TPM2_CC_NV_DEFINE_SPACE = 0x012a, TPM2_CC_PCR_SETAUTHPOL = 0x012C, TPM2_CC_DAM_RESET = 0x0139, TPM2_CC_DAM_PARAMETERS = 0x013A, @@ -388,6 +389,23 @@ u32 tpm2_self_test(struct udevice *dev, enum tpm2_yes_no full_test); u32 tpm2_clear(struct udevice *dev, u32 handle, const char *pw, const ssize_t pw_sz); +/** + * Issue a TPM_NV_DefineSpace command + * + * This allows a space to be defined with given attributes and policy + * + * @dev TPM device + * @space_index index of the area + * @space_size size of area in bytes + * @nv_attributes TPM_NV_ATTRIBUTES of the area + * @nv_policy policy to use + * @nv_policy_size size of the policy + * @return return code of the operation + */ +u32 tpm2_nv_define_space(struct udevice *dev, u32 space_index, + size_t space_size, u32 nv_attributes, + const u8 *nv_policy, size_t nv_policy_size); + /** * Issue a TPM2_PCR_Extend command. * -- cgit v1.2.3