#define TPM2_MAX_TPM_PROPERTIES ((TPM2_MAX_CAP_BUFFER - sizeof(u32) /* TPM2_CAP */ - \
sizeof(u32)) / sizeof(struct tpms_tagged_property))
+#define TPM2_HDR_LEN 10
+
/*
* We deviate from this draft of the specification by increasing the value of
* TPM2_NUM_PCR_BANKS from 3 to 16 to ensure compatibility with TPM2
#define TPM2_PT_MAX_COMMAND_SIZE (u32)(TPM2_PT_FIXED + 30)
#define TPM2_PT_MAX_RESPONSE_SIZE (u32)(TPM2_PT_FIXED + 31)
-/* event types */
-#define EV_POST_CODE ((u32)0x00000001)
-#define EV_NO_ACTION ((u32)0x00000003)
-#define EV_SEPARATOR ((u32)0x00000004)
-#define EV_S_CRTM_CONTENTS ((u32)0x00000007)
-#define EV_S_CRTM_VERSION ((u32)0x00000008)
-#define EV_CPU_MICROCODE ((u32)0x00000009)
-#define EV_TABLE_OF_DEVICES ((u32)0x0000000B)
+/*
+ * event types, cf.
+ * "TCG Server Management Domain Firmware Profile Specification",
+ * rev 1.00, 2020-05-01
+ */
+#define EV_POST_CODE ((u32)0x00000001)
+#define EV_NO_ACTION ((u32)0x00000003)
+#define EV_SEPARATOR ((u32)0x00000004)
+#define EV_ACTION ((u32)0x00000005)
+#define EV_TAG ((u32)0x00000006)
+#define EV_S_CRTM_CONTENTS ((u32)0x00000007)
+#define EV_S_CRTM_VERSION ((u32)0x00000008)
+#define EV_CPU_MICROCODE ((u32)0x00000009)
+#define EV_PLATFORM_CONFIG_FLAGS ((u32)0x0000000A)
+#define EV_TABLE_OF_DEVICES ((u32)0x0000000B)
+#define EV_COMPACT_HASH ((u32)0x0000000C)
+
+/*
+ * event types, cf.
+ * "TCG PC Client Platform Firmware Profile Specification", Family "2.0"
+ * Level 00 Version 1.05 Revision 23, May 7, 2021
+ */
+#define EV_EFI_EVENT_BASE ((u32)0x80000000)
+#define EV_EFI_VARIABLE_DRIVER_CONFIG ((u32)0x80000001)
+#define EV_EFI_VARIABLE_BOOT ((u32)0x80000002)
+#define EV_EFI_BOOT_SERVICES_APPLICATION ((u32)0x80000003)
+#define EV_EFI_BOOT_SERVICES_DRIVER ((u32)0x80000004)
+#define EV_EFI_RUNTIME_SERVICES_DRIVER ((u32)0x80000005)
+#define EV_EFI_GPT_EVENT ((u32)0x80000006)
+#define EV_EFI_ACTION ((u32)0x80000007)
+#define EV_EFI_PLATFORM_FIRMWARE_BLOB ((u32)0x80000008)
+#define EV_EFI_HANDOFF_TABLES ((u32)0x80000009)
+#define EV_EFI_PLATFORM_FIRMWARE_BLOB2 ((u32)0x8000000A)
+#define EV_EFI_HANDOFF_TABLES2 ((u32)0x8000000B)
+#define EV_EFI_VARIABLE_BOOT2 ((u32)0x8000000C)
+#define EV_EFI_HCRTM_EVENT ((u32)0x80000010)
+#define EV_EFI_VARIABLE_AUTHORITY ((u32)0x800000E0)
+#define EV_EFI_SPDM_FIRMWARE_BLOB ((u32)0x800000E1)
+#define EV_EFI_SPDM_FIRMWARE_CONFIG ((u32)0x800000E2)
+
+#define EFI_CALLING_EFI_APPLICATION \
+ "Calling EFI Application from Boot Option"
+#define EFI_RETURNING_FROM_EFI_APPLICATION \
+ "Returning from EFI Application from Boot Option"
+#define EFI_EXIT_BOOT_SERVICES_INVOCATION \
+ "Exit Boot Services Invocation"
+#define EFI_EXIT_BOOT_SERVICES_FAILED \
+ "Exit Boot Services Returned with Failure"
+#define EFI_EXIT_BOOT_SERVICES_SUCCEEDED \
+ "Exit Boot Services Returned with Success"
/* TPMS_TAGGED_PROPERTY Structure */
struct tpms_tagged_property {
enum tpm2_command_codes {
TPM2_CC_STARTUP = 0x0144,
TPM2_CC_SELF_TEST = 0x0143,
+ TPM2_CC_HIER_CONTROL = 0x0121,
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_NV_WRITE = 0x0137,
+ TPM2_CC_NV_WRITELOCK = 0x0138,
TPM2_CC_DAM_RESET = 0x0139,
TPM2_CC_DAM_PARAMETERS = 0x013A,
TPM2_CC_NV_READ = 0x014E,
TPM2_RC_COMMAND_CODE = TPM2_RC_VER1 + 0x0043,
TPM2_RC_AUTHSIZE = TPM2_RC_VER1 + 0x0044,
TPM2_RC_AUTH_CONTEXT = TPM2_RC_VER1 + 0x0045,
+ TPM2_RC_NV_DEFINED = TPM2_RC_VER1 + 0x004c,
TPM2_RC_NEEDS_TEST = TPM2_RC_VER1 + 0x0053,
TPM2_RC_WARN = 0x0900,
TPM2_RC_TESTING = TPM2_RC_WARN + 0x000A,
TPM_STS_DATA_EXPECT = 1 << 3,
TPM_STS_SELF_TEST_DONE = 1 << 2,
TPM_STS_RESPONSE_RETRY = 1 << 1,
+ TPM_STS_READ_ZERO = 0x23
};
enum {
TPM_MAX_BUF_SIZE = 1260,
};
+enum {
+ /* Secure storage for firmware settings */
+ TPM_HT_PCR = 0,
+ TPM_HT_NV_INDEX,
+ TPM_HT_HMAC_SESSION,
+ TPM_HT_POLICY_SESSION,
+
+ HR_SHIFT = 24,
+ HR_PCR = TPM_HT_PCR << HR_SHIFT,
+ HR_HMAC_SESSION = TPM_HT_HMAC_SESSION << HR_SHIFT,
+ HR_POLICY_SESSION = TPM_HT_POLICY_SESSION << HR_SHIFT,
+ HR_NV_INDEX = TPM_HT_NV_INDEX << HR_SHIFT,
+};
+
/**
* Issue a TPM2_Startup command.
*
* @dev TPM device
* @mode TPM startup mode
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_startup(struct udevice *dev, enum tpm2_startup_types mode);
* @dev TPM device
* @full_test Asking to perform all tests or only the untested ones
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_self_test(struct udevice *dev, enum tpm2_yes_no full_test);
* @pw Password
* @pw_sz Length of the password
*
- * @return code of the operation
+ * Return: code of the operation
*/
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.
*
* @dev TPM device
* @digest Value representing the event to be recorded
* @digest_len len of the hash
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_pcr_extend(struct udevice *dev, u32 index, u32 algorithm,
const u8 *digest, u32 digest_len);
/**
+ * Read data from the secure storage
+ *
+ * @dev TPM device
+ * @index Index of data to read
+ * @data Place to put data
+ * @count Number of bytes of data
+ * Return: code of the operation
+ */
+u32 tpm2_nv_read_value(struct udevice *dev, u32 index, void *data, u32 count);
+
+/**
+ * Write data to the secure storage
+ *
+ * @dev TPM device
+ * @index Index of data to write
+ * @data Data to write
+ * @count Number of bytes of data
+ * Return: code of the operation
+ */
+u32 tpm2_nv_write_value(struct udevice *dev, u32 index, const void *data,
+ u32 count);
+
+/**
* Issue a TPM2_PCR_Read command.
*
* @dev TPM device
* @idx Index of the PCR
* @idx_min_sz Minimum size in bytes of the pcrSelect array
+ * @algorithm Algorithm used, defined in 'enum tpm2_algorithms'
* @data Output buffer for contents of the named PCR
+ * @digest_len len of the data
* @updates Optional out parameter: number of updates for this PCR
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_pcr_read(struct udevice *dev, u32 idx, unsigned int idx_min_sz,
- void *data, unsigned int *updates);
+ u16 algorithm, void *data, u32 digest_len,
+ unsigned int *updates);
/**
* Issue a TPM2_GetCapability command. This implementation is limited
* @buf Output buffer for capability information
* @prop_count Size of output buffer
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_get_capability(struct udevice *dev, u32 capability, u32 property,
void *buf, size_t prop_count);
* @pw Password
* @pw_sz Length of the password
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_dam_reset(struct udevice *dev, const char *pw, const ssize_t pw_sz);
* @recovery_time Time before decrementation of the failure count
* @lockout_recovery Time to wait after a lockout
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_dam_parameters(struct udevice *dev, const char *pw,
const ssize_t pw_sz, unsigned int max_tries,
* @oldpw Old password
* @oldpw_sz Length of the old password
*
- * @return code of the operation
+ * Return: code of the operation
*/
int tpm2_change_auth(struct udevice *dev, u32 handle, const char *newpw,
const ssize_t newpw_sz, const char *oldpw,
* @index Index of the PCR
* @digest New key to access the PCR
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_pcr_setauthpolicy(struct udevice *dev, const char *pw,
const ssize_t pw_sz, u32 index, const char *key);
* @digest New key to access the PCR
* @key_sz Length of the new key
*
- * @return code of the operation
+ * Return: code of the operation
*/
u32 tpm2_pcr_setauthvalue(struct udevice *dev, const char *pw,
const ssize_t pw_sz, u32 index, const char *key,
* @param data output buffer for the random bytes
* @param count size of output buffer
*
- * @return return code of the operation
+ * Return: return code of the operation
*/
u32 tpm2_get_random(struct udevice *dev, void *data, u32 count);
+/**
+ * Lock data in the TPM
+ *
+ * Once locked the data cannot be written until after a reboot
+ *
+ * @dev TPM device
+ * @index Index of data to lock
+ * Return: code of the operation
+ */
+u32 tpm2_write_lock(struct udevice *dev, u32 index);
+
+/**
+ * Disable access to any platform data
+ *
+ * This can be called to close off access to the firmware data in the data,
+ * before calling the kernel.
+ *
+ * @dev TPM device
+ * Return: code of the operation
+ */
+u32 tpm2_disable_platform_hierarchy(struct udevice *dev);
+
+/**
+ * submit user specified data to the TPM and get response
+ *
+ * @dev TPM device
+ * @sendbuf: Buffer of the data to send
+ * @recvbuf: Buffer to save the response to
+ * @recv_size: Pointer to the size of the response buffer
+ *
+ * Return: code of the operation
+ */
+u32 tpm2_submit_command(struct udevice *dev, const u8 *sendbuf,
+ u8 *recvbuf, size_t *recv_size);
+
#endif /* __TPM_V2_H */
projects / platform / kernel / u-boot.git / blobdiff