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TPM Driver Operation

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Applies To: Windows Server 2008

This version of Windows includes a device driver that allows the TPM Base Service (TBS) to communicate with and share the use of a Trusted Platform Module chip in the computer. Any failures in communication with the TPM or unexpected results cause the TPM driver or the TBS to log event messages.

Note: The BitLocker Drive Encryption feature uses the TPM by default.

Events

Event ID Source Message

1

TPM

 Upon entering S3/S4, the TPM_SaveState command failed.

2

TPM

 The TPM self test command failed.

3

TPM

 The TPM had been seized after the activeLocality bit had been set.

4

TPM

 The TPM's activeLocality bit has been cleared.

5

TPM

 The TPM's Access register indicates it is in shutdown mode.

6

TPM

 The TPM's Access register's valid bit is not be set.

7

TPM

 The TPM's Access register's locality bit could not be set.

8

TPM

 The TPM's Status register's command ready bit could not be set.

9

TPM

 The TPM's Status register's valid bit could not be set.

10

TPM

 A buffer underflow was detected.

11

TPM

 A buffer overflow was detected.

TPM Driver

Core Security