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| author | Simon Glass <sjg@chromium.org> | 2015-08-22 18:31:41 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-08-31 07:57:29 -0600 |
| commit | 2132f971ba2443bc31046cbbf18bbf5e7c017b50 (patch) | |
| tree | 4d21fac12c7a0f035780d06ef33276154d484a98 /include/tpm.h | |
| parent | ad77694e23be841feeb91e8173d4d3d4e8ef2bf0 (diff) | |
| download | talos-obmc-uboot-2132f971ba2443bc31046cbbf18bbf5e7c017b50.tar.gz talos-obmc-uboot-2132f971ba2443bc31046cbbf18bbf5e7c017b50.zip | |
tpm: Add functions to access flags and permissions
Add a few new functions which will be used by the test command in a future
patch.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Christophe Ricard<christophe-h.ricard@st.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'include/tpm.h')
| -rw-r--r-- | include/tpm.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/tpm.h b/include/tpm.h index 445952b055..086b672718 100644 --- a/include/tpm.h +++ b/include/tpm.h @@ -49,6 +49,15 @@ enum tpm_nv_index { TPM_NV_INDEX_DIR = 0x10000001, }; +#define TPM_NV_PER_GLOBALLOCK (1U << 15) +#define TPM_NV_PER_PPWRITE (1U << 0) +#define TPM_NV_PER_READ_STCLEAR (1U << 31) +#define TPM_NV_PER_WRITE_STCLEAR (1U << 14) + +enum { + TPM_PUBEK_SIZE = 256, +}; + /** * TPM return codes as defined in the TCG Main specification * (TPM Main Part 2 Structures; Specification version 1.2) @@ -163,6 +172,30 @@ enum tpm_return_code { TPM_DEFEND_LOCK_RUNNING = TPM_BASE + TPM_NON_FATAL + 3, }; +struct tpm_permanent_flags { + __be16 tag; + u8 disable; + u8 ownership; + u8 deactivated; + u8 read_pubek; + u8 disable_owner_clear; + u8 allow_maintenance; + u8 physical_presence_lifetime_lock; + u8 physical_presence_hw_enable; + u8 physical_presence_cmd_enable; + u8 cekp_used; + u8 tpm_post; + u8 tpm_post_lock; + u8 fips; + u8 operator; + u8 enable_revoke_ek; + u8 nv_locked; + u8 read_srk_pub; + u8 tpm_established; + u8 maintenance_done; + u8 disable_full_da_logic_info; +} __packed; + #ifdef CONFIG_DM_TPM /* Max buffer size supported by our tpm */ @@ -551,4 +584,20 @@ uint32_t tpm_load_key2_oiap(uint32_t parent_handle, uint32_t tpm_get_pub_key_oiap(uint32_t key_handle, const void *usage_auth, void *pubkey, size_t *pubkey_len); +/** + * Get the TPM permanent flags value + * + * @param pflags Place to put permanent flags + * @return return code of the operation + */ +uint32_t tpm_get_permanent_flags(struct tpm_permanent_flags *pflags); + +/** + * Get the TPM permissions + * + * @param perm Returns permissions value + * @return return code of the operation + */ +uint32_t tpm_get_permissions(uint32_t index, uint32_t *perm); + #endif /* __TPM_H */ |
