公开(公告)号：US20210318812A1

公开(公告)日：2021-10-14

申请号：US16844203

申请日：2020-04-09

Applicant: Synaptics Incorporated

Inventor： Pontus Evert LIDMAN ,  Fook Shian TOONG ,  Jingliang LI ,  Hongjie GUAN

IPC: G06F3/06 ,  G06F12/1009

Abstract: A method and apparatus for controlling access to memory is disclosed. In one implementation, a memory controller may receive a memory access request that may include a virtual memory address, a device identifier (ID) and a protected access indicator. Additionally, the memory controller can receive page table entries including a physical memory address based on the virtual memory address and a security attribute associated with the physical memory address. The memory controller may access a memory based on the physical memory address, the security attribute, the protected access indicator, and the device ID.