From 7690be35deaeac1cb51a5f7896c2a46afabdfad3 Mon Sep 17 00:00:00 2001 From: Mario Six Date: Wed, 11 Jan 2017 16:00:50 +0100 Subject: lib: tpm: Add command to flush resources This patch adds a function to the TPM library, which allows U-Boot to flush resources, e.g. keys, from the TPM. Signed-off-by: Mario Six Reviewed-by: Stefan Roese Reviewed-by: Simon Glass Signed-off-by: Stefan Roese --- include/tpm.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) (limited to 'include') diff --git a/include/tpm.h b/include/tpm.h index 9a6585d..800f29c 100644 --- a/include/tpm.h +++ b/include/tpm.h @@ -47,6 +47,42 @@ enum tpm_nv_index { TPM_NV_INDEX_DIR = 0x10000001, }; +enum tpm_resource_type { + TPM_RT_KEY = 0x00000001, + TPM_RT_AUTH = 0x00000002, + TPM_RT_HASH = 0x00000003, + TPM_RT_TRANS = 0x00000004, + TPM_RT_CONTEXT = 0x00000005, + TPM_RT_COUNTER = 0x00000006, + TPM_RT_DELEGATE = 0x00000007, + TPM_RT_DAA_TPM = 0x00000008, + TPM_RT_DAA_V0 = 0x00000009, + TPM_RT_DAA_V1 = 0x0000000A, +}; + +enum tpm_capability_areas { + TPM_CAP_ORD = 0x00000001, + TPM_CAP_ALG = 0x00000002, + TPM_CAP_PID = 0x00000003, + TPM_CAP_FLAG = 0x00000004, + TPM_CAP_PROPERTY = 0x00000005, + TPM_CAP_VERSION = 0x00000006, + TPM_CAP_KEY_HANDLE = 0x00000007, + TPM_CAP_CHECK_LOADED = 0x00000008, + TPM_CAP_SYM_MODE = 0x00000009, + TPM_CAP_KEY_STATUS = 0x0000000C, + TPM_CAP_NV_LIST = 0x0000000D, + TPM_CAP_MFR = 0x00000010, + TPM_CAP_NV_INDEX = 0x00000011, + TPM_CAP_TRANS_ALG = 0x00000012, + TPM_CAP_HANDLE = 0x00000014, + TPM_CAP_TRANS_ES = 0x00000015, + TPM_CAP_AUTH_ENCRYPT = 0x00000017, + TPM_CAP_SELECT_SIZE = 0x00000018, + TPM_CAP_DA_LOGIC = 0x00000019, + TPM_CAP_VERSION_VAL = 0x0000001A, +}; + #define TPM_NV_PER_GLOBALLOCK (1U << 15) #define TPM_NV_PER_PPWRITE (1U << 0) #define TPM_NV_PER_READ_STCLEAR (1U << 31) @@ -594,4 +630,13 @@ uint32_t tpm_get_permanent_flags(struct tpm_permanent_flags *pflags); */ uint32_t tpm_get_permissions(uint32_t index, uint32_t *perm); +/** + * Flush a resource with a given handle and type from the TPM + * + * @param key_handle handle of the resource + * @param resource_type type of the resource + * @return return code of the operation + */ +uint32_t tpm_flush_specific(uint32_t key_handle, uint32_t resource_type); + #endif /* __TPM_H */ -- cgit v1.1