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14 Intel

Xeon

Processor E7-8800/4800/2800 Product Families

September 2012 Specification Update

Intel

Trusted Execution Technology Authenticated Control Modules

Platforms supporting Intel

Trusted Execution Technology (Intel

TXT) must ship with

authenticated control modules, software binaries used to establish a root of trust.

BIOS launches the BIOS ACM (authenticated control module) to establish a static root

of trust at power-on. The measured launch environment launches the SINIT ACM to

establish a dynamic root of trust at MLE (Measured Launch Event) launch.

Table 3. Intel

Xeon

Processor E7-8800/4800/2800 Product Families BIOS ACM

Releases

Version Release Date Stepping Signature

BIOS ACM 1.0 11/2010 A-2 Production

BIOS ACM 1.1 3/2011 A-2 Production

BIOS ACM 1.2 10/2011 A-2 Production

Table 4. Intel

Xeon

Processor E7-8800/4800/2800 Product Families SINIT ACM

Releases

Version Release Date Stepping Signature

SINIT ACM 1.0 3/2011 A-2 Production

SINIT ACM 1.1 10/2011 A-2 Production

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