arm TrustZone paper

Trusted Computing Building Blocks for Embedded Linux-based ARM TrustZone Platformshttp://delivery.acm.org/10.1145/1460000/1456460/p21-winter.pdf?ip=207.46.92.19&CFID=25966961&CFTOKEN=43525536&__acm__=1307587967_51bd39406227053b81dda5685ac39ccf

trustzone study material

trust zone white paper:
http://infocenter.arm.com/help/topic/com.arm.doc.prd29-genc-009492c/PRD29-GENC-009492C_trustzone_security_whitepaper.pdf

trust zone APT spec(you need to create an account at arm.com, and download):
http://www.arm.com/products/processors/technologies/trustzone.php