公开(公告)号：US20210049111A1

公开(公告)日：2021-02-18

申请号：US17084308

申请日：2020-10-29

Applicant: Micron Technology, Inc.

Inventor： Lance W. Dover

IPC: G06F12/14 ,  G06F3/06

Abstract: Disclosed in some examples are memory systems, computing systems, and machine readable mediums for protecting memory at identified addresses based upon access rules defining permissible access to the identified memory addresses that depends on the value of one or more registers stored in the memory system. In some examples, the value of the registers (e.g., a Platform Configuration Register) may depend on a state of a computing device in which the memory system is installed.

公开(公告)号：US20150019793A1

公开(公告)日：2015-01-15

申请号：US13937887

申请日：2013-07-09

Applicant: Micron Technology, Inc.

Inventor： Lance W. Dover

IPC: G06F12/02

CPC classification number: G06F21/57 ,  G06F2221/034

Abstract: Several embodiments of systems incorporating nonvolatile memory devices are disclosed herein. In one embodiment, a system can include a central processor (CPU) and a nonvolatile memory device operably coupled to the CPU. The nonvolatile memory device can include a memory that stores pre-measurement instructions that are executable by the nonvolatile memory upon startup, but not executable by the CPU upon startup. In operation, the pre-measurement instructions direct the nonvolatile memory to take a measurement of at least a portion of its contents and to cryptographically sign the measurement to indicate that the measurement was taken by the nonvolatile memory device. In one embodiment, the CPU can use the measurement to determine whether the nonvolatile memory device is trustworthy.

Abstract translation: 本文公开了包含非易失性存储器件的系统的几个实施例。 在一个实施例中，系统可以包括可操作地耦合到CPU的中央处理器（CPU）和非易失性存储器设备。 非易失性存储器件可以包括存储器，其存储在启动时可由非易失性存储器执行但在启动时不由CPU执行的预测量指令。 在操作中，预测量指令指示非易失性存储器对其内容的至少一部分进行测量，并且对该测量进行加密地签名，以指示由非易失性存储器件进行的测量。 在一个实施例中，CPU可以使用测量来确定非易失性存储器件是否可信赖。