公开(公告)号：US20170090909A1

公开(公告)日：2017-03-30

申请号：US14866682

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Xu GUO ,  Ron KEIDAR ,  Rodney ZIOLKOWSKI ,  Mahesh Dandapani IYER ,  Yau CHU

IPC: G06F9/445 ,  G06F21/57

CPC classification number: G06F8/66 ,  G06F21/57 ,  G06F21/572 ,  G06F21/575 ,  G06F2221/033

Abstract: Methods, apparatus, and computer program products for securely writing patch code to a memory of a system-on-chip (SoC) are described. An example of a method for securely writing patch code to the memory of the SoC includes determining an authentication status of a patch code image, if the authentication status of the patch code image is authenticated, then writing the patch code from the patch code image into a one-time programmable (OTP) memory and generating a system reset signal, and if the authentication status of the patch code image is unauthenticated, then booting the SoC without writing the patch code from the patch code image into the OTP memory.