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authorRoss Philipson <ross.philipson@gmail.com>2026-07-11 09:01:02 -0700
committerJarkko Sakkinen <jarkko@kernel.org>2026-08-25 18:13:35 +0300
commit94d48062eb9626244f6ddb5a682cdaae40540030 (patch)
treefb0d67b557e25a7b8c78bc6621a5dd81fb337704 /drivers/char/tpm
parente06f28d32f31206c0be32a08b0273e26cfc1fc92 (diff)
tpm: Move TPM1 specific definitions to the command header
Gather all the TPM1 definitions and structures from the internal header file drivers/char/tpm/tpm.h into the command header. In addition, bring in the single RNG structure from tpm1-cmd.c. The definitions moved to these files correspond to the TCG specification for TPM 1 family: TPM 1.2 Main Specification - https://trustedcomputinggroup.org/resource/tpm-main-specification/ Co-developed-by: Daniel P. Smith <dpsmith@apertussolutions.com> Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com> Co-developed-by: Alec Brown <alec.r.brown@oracle.com> Signed-off-by: Alec Brown <alec.r.brown@oracle.com> Signed-off-by: Ross Philipson <ross.philipson@gmail.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'drivers/char/tpm')
-rw-r--r--drivers/char/tpm/tpm.h102
-rw-r--r--drivers/char/tpm/tpm1-cmd.c5
2 files changed, 0 insertions, 107 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 87d68ddf270a..043d78a9617a 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -52,105 +52,9 @@ enum tpm_addr {
TPM_ADDR = 0x4E,
};
-#define TPM_WARN_RETRY 0x800
-#define TPM_WARN_DOING_SELFTEST 0x802
-#define TPM_ERR_DEACTIVATED 0x6
-#define TPM_ERR_DISABLED 0x7
-#define TPM_ERR_FAILEDSELFTEST 0x1C
-#define TPM_ERR_INVALID_POSTINIT 38
-
-#define TPM_TAG_RQU_COMMAND 193
-
/* TPM2 specific constants. */
#define TPM2_SPACE_BUFFER_SIZE 16384 /* 16 kB */
-struct stclear_flags_t {
- __be16 tag;
- u8 deactivated;
- u8 disableForceClear;
- u8 physicalPresence;
- u8 physicalPresenceLock;
- u8 bGlobalLock;
-} __packed;
-
-struct tpm1_version {
- u8 major;
- u8 minor;
- u8 rev_major;
- u8 rev_minor;
-} __packed;
-
-struct tpm1_version2 {
- __be16 tag;
- struct tpm1_version version;
-} __packed;
-
-struct timeout_t {
- __be32 a;
- __be32 b;
- __be32 c;
- __be32 d;
-} __packed;
-
-struct duration_t {
- __be32 tpm_short;
- __be32 tpm_medium;
- __be32 tpm_long;
-} __packed;
-
-struct permanent_flags_t {
- __be16 tag;
- u8 disable;
- u8 ownership;
- u8 deactivated;
- u8 readPubek;
- u8 disableOwnerClear;
- u8 allowMaintenance;
- u8 physicalPresenceLifetimeLock;
- u8 physicalPresenceHWEnable;
- u8 physicalPresenceCMDEnable;
- u8 CEKPUsed;
- u8 TPMpost;
- u8 TPMpostLock;
- u8 FIPS;
- u8 operator;
- u8 enableRevokeEK;
- u8 nvLocked;
- u8 readSRKPub;
- u8 tpmEstablished;
- u8 maintenanceDone;
- u8 disableFullDALogicInfo;
-} __packed;
-
-typedef union {
- struct permanent_flags_t perm_flags;
- struct stclear_flags_t stclear_flags;
- __u8 owned;
- __be32 num_pcrs;
- struct tpm1_version version1;
- struct tpm1_version2 version2;
- __be32 manufacturer_id;
- struct timeout_t timeout;
- struct duration_t duration;
-} cap_t;
-
-enum tpm_capabilities {
- TPM_CAP_FLAG = 4,
- TPM_CAP_PROP = 5,
- TPM_CAP_VERSION_1_1 = 0x06,
- TPM_CAP_VERSION_1_2 = 0x1A,
-};
-
-enum tpm_sub_capabilities {
- TPM_CAP_PROP_PCR = 0x101,
- TPM_CAP_PROP_MANUFACTURER = 0x103,
- TPM_CAP_FLAG_PERM = 0x108,
- TPM_CAP_FLAG_VOL = 0x109,
- TPM_CAP_PROP_OWNER = 0x111,
- TPM_CAP_PROP_TIS_TIMEOUT = 0x115,
- TPM_CAP_PROP_TIS_DURATION = 0x120,
-};
-
enum tpm2_pt_props {
TPM2_PT_NONE = 0x00000000,
TPM2_PT_GROUP = 0x00000100,
@@ -225,12 +129,6 @@ enum tpm2_pt_props {
TPM2_PT_AUDIT_COUNTER_1 = TPM2_PT_VAR + 20,
};
-/* 128 bytes is an arbitrary cap. This could be as large as TPM_BUFSIZE - 18
- * bytes, but 128 is still a relatively large number of random bytes and
- * anything much bigger causes users of struct tpm_cmd_t to start getting
- * compiler warnings about stack frame size. */
-#define TPM_MAX_RNG_DATA 128
-
extern const struct class tpm_class;
extern const struct class tpmrm_class;
extern dev_t tpm_devt;
diff --git a/drivers/char/tpm/tpm1-cmd.c b/drivers/char/tpm/tpm1-cmd.c
index 664ca1fff2e8..96f189b5fd6f 100644
--- a/drivers/char/tpm/tpm1-cmd.c
+++ b/drivers/char/tpm/tpm1-cmd.c
@@ -504,11 +504,6 @@ ssize_t tpm1_getcap(struct tpm_chip *chip, u32 subcap_id, cap_t *cap,
}
EXPORT_SYMBOL_GPL(tpm1_getcap);
-struct tpm1_get_random_out {
- __be32 rng_data_len;
- u8 rng_data[TPM_MAX_RNG_DATA];
-} __packed;
-
/**
* tpm1_get_random() - get random bytes from the TPM's RNG
* @chip: a &struct tpm_chip instance