Intel Corporation

David Champagne

Christopher J Hughes

Shih-Lien L Lu

Sanjeev Kumar

Wei Wu

Abhishek Tiwari

Ned M Smith

David W Grawrock

Alok Kumar

Madhukar Tallam

Kuo-Lang Tseng

Ramesh Thomas

Minal B Patel

Aneet Chopra

In one embodiment, the present invention includes a translation lookaside buffer (TLB) to store entries each having a translation portion to store a virtual address (VA)-to-physical address (PA) translation and a second portion to store bits for a memory page associated with the VA-to-PA translation, where the bits indicate attributes of information in the memory page. Other embodiments are described and claimed.

Providing metadata in a translation lookaside buffer (TLB)

A processing system features random access memory (RAM), a processor, and a trusted platform module (TPM). When the processing system enters a sleep mode during which the RAM is to stay powered, the processing system may measuring a VMM and one or more secure VMs in the processing system. However, the processing system may not measure or encrypt all of system memory. Upon resuming from sleep, the processing system may verify the measurements, to ensure that the VMM and secure VMs have not been tampered with. Other steps may include sealing encryption keys to the TPM, while preserving the blobs in memory. Other embodiments are described and claimed.

Method and apparatus to re-create trust model after sleep state

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Princeton, NJ, United States of America

David Champagne