公开(公告)号：US10599442B2

公开(公告)日：2020-03-24

申请号：US15448232

申请日：2017-03-02

Applicant: QUALCOMM Incorporated

Inventor： Dhamim Packer Ali ,  Yanru Li ,  Ashutosh Shrivastava ,  Azzedine Touzni ,  Mamta Desai

IPC: G06F9/4401

Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method of operating a system-on-chip (SoC). The method includes selecting a CPU core of a plurality of CPU cores of the SoC to boot the SoC based on information indicative of the quality of the plurality of CPU cores stored on the SoC. The method includes running boot code on the selected CPU.

公开(公告)号：US11334402B2

公开(公告)日：2022-05-17

申请号：US16938845

申请日：2020-07-24

Applicant: QUALCOMM Incorporated

Inventor： Rudhresh Kumar ,  Mamta Desai ,  Dhamim Packer Ali ,  Thirupathi Venkatarajan ,  Santan Kumar

IPC: G06F9/54 ,  G06F9/30 ,  G06F13/40 ,  G06F9/46

Abstract: A method of improving synchronization over a secure digital (SD) bus between an SD host and an SD client device is described. The method includes writing to a client event register to interrupt the SD host for an SD extended command. The method also includes triggering the SD host to issue the SD extended command to the SD client device over the SD bus in response to the SD client device writing to the client event register.

公开(公告)号：US10586038B2

公开(公告)日：2020-03-10

申请号：US15699646

申请日：2017-09-08

Applicant: QUALCOMM INCORPORATED

Inventor： Mamta Desai ,  Ashutosh Shrivastava ,  Dhamim Packer Ali

IPC: G06F21/00 ,  G06F21/52 ,  G06F21/80 ,  G06F7/58

Abstract: Systems and methods are disclosed for providing stack overflow protection on a system on chip via a hardware write-once register. An exemplary embodiment of an system on chip comprises a hardware write-once register, a boot processor, and one or more processor subsystems. The boot processor is configured to execute a read only memory (ROM) image which initializes the hardware write-once register with a first numeric value in response to the system on chip being powered on. The one or more processor subsystems have an associated software image configured to use the first numeric value in the hardware write-once register as a stack canary value to combat stack overflow attacks.