20260218_A-101_Li.PDF

1、Scalable Chiplet Integration with UCIe 3.0 and RoTLuis Li,Senior Member Technical Staff Emmanuel Carballo,Senior Member Technical Staff Presentation overviewThe UCIe Management Director-Discovers chiplets and Management Elements-Discovers and configuring Management Ports-Is the manageability Root of

2、 Trust(RoT)-Coordinates overall management of the SiP2UCIe manageability architecture goals-Support for management using mainband or sideband is mainband protocol agnostic-The required core capabilities of UCIe manageability may be realized in hardware allowing simple chiplets to remain simple-UCIe

3、Chiplets that support manageability may be used to realize products for a variety of markets(with different manageability and security requirements)-UCIe manageability is intended to foster an open chiplet ecosystem where SiPsmay be constructed from chiplets produced by different vendors(security th

4、reat)3Multi-Vendor SiP Security Threats Untrusted chiplet accessing sensitive data Malicious chiplet compromising system integrityUnauthorized access to configuration/secretsSupply chain attacks via compromised chipletsSide-channel attacks between chiplets Denial of Service attacks on shared resourc

5、es4How UCIe Root of Trust Mitigates These ThreatsManagement Director as Root of Trust(RoT)From UCIe Spec Section 8.1.3.5(Terms and Definitions):Management Director:Management Element that is responsible for discovering,configuring,and coordinating the overall management of the SiP and acts as the ma

6、nageability Root of Trust(RoT)“Security Role:Establishes a single trusted authority for the entire SiPAll security policies flow from this trusted entityValidates and authenticates chiplets before granting accessCoordinates security policy enforcement across vendors5Example:Multi-Vendor Security Sce