SYSTEM AND METHOD FOR HIGH PERFORMANCE SECURE ACCESS TO A TRUSTED PLATFORM MODULE ON A HARDWARE VIRTUALIZATION PLATFORM
Patent №
US 8,090,919
Granted
2012-01-03
Filed 2007
Owner
INTEL CORPORATION
Lab
—
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
11967683
A system and method for high performance secure access to a trusted platform module on a hardware virtualization platform. The virtualization platform including Virtual Machine Monitor (VMM) managed components coupled to the VMM. One of the VMM managed components is a TPM (Trusted Platform Module). The virtualization platform also includes a plurality of Virtual Machines (VMs). Each of the virtual machines includes a guest Operating System (OS), a TPM device driver (TDD), and at least one security application. The VMM creates an intra-partition in memory for each TDD such that other code and information at a same or higher privilege level in the VM cannot access the memory contents of the TDD. The VMM also maps access only from the TDD to a TPM register space specifically designated for the VM requesting access. Contents of the TPM requested by the TDD are stored in an exclusively VMM-managed protected page table that provides hardware-based memory isolation for the TDD.
AI classification
Ownership
INTEL CORPORATION
assignment · 250330986
Assignors
SAHITA, RAVI, SCHLUESSLER, TRAVIS T.
On an employer assignment, the assignors are typically the inventors.