公开(公告)号：US20180129502A1

公开(公告)日：2018-05-10

申请号：US15682531

申请日：2017-08-21

Applicant: INTEL CORPORATION

Inventor： NICHOLAS J. ADAMS ,  VINCENT J. ZIMMER ,  LEE G. ROSENBAUM ,  GIRI P. MUDUSURU

IPC: G06F9/30 ,  G06F21/57 ,  G06F21/74 ,  G06F9/34 ,  G06F21/44

CPC classification number: G06F9/30189 ,  G06F9/34 ,  G06F21/44 ,  G06F21/57 ,  G06F21/74

Abstract: Various embodiments are generally directed to establishing trust in system management mode. An operating system management mode driver can invoke a system management mode and provide a signature to the system management mode to authenticate the driver with. Additionally, a hash value of the driver can be used to determine whether the driver is authorized to invoke system management mode or particular operations or features of system management mode.

公开(公告)号：US20150370302A1

公开(公告)日：2015-12-24

申请号：US14312017

申请日：2014-06-23

Applicant: Intel Corporation

Inventor： GIRI P. MUDUSURU ,  VINCENT J. ZIMMER ,  KARUNAKARA KOTARY ,  RONALD N. STORY ,  ROBERT C. SWANSON ,  ISAAC W. ORAM

IPC: G06F1/30 ,  G06F13/32 ,  G11C14/00 ,  G11C7/10 ,  G11C11/00 ,  G06F11/14 ,  G06F12/02

CPC classification number: G06F1/30 ,  G06F11/1441 ,  G06F11/2015 ,  G06F12/0246 ,  G06F12/0804 ,  G06F12/0866 ,  G06F12/0875 ,  G06F12/1416 ,  G06F12/1491 ,  G06F13/32 ,  G06F2212/1024 ,  G06F2212/222 ,  G11C5/141

Abstract: Generally, this disclosure provides systems, devices, methods and computer readable media for a Unified Extensible Firmware Interface (UEFI) with durable storage to provide memory write persistence, for example, in the event of power loss. The system may include a processor to host the firmware interface which may be configured to control access to system variables in a protected region of a volatile memory. The system may also include a power management circuit to provide power to the processor and further to provide a power loss indicator to the firmware interface. The system may also include a reserve energy storage module to provide power to the processor in response to the power loss indicator. The firmware interface is further configured to copy the system variables from the volatile memory to a non-volatile memory in response to the power loss indicator.

Abstract translation: 通常，本公开提供了用于具有耐用存储器的统一可扩展固件接口（UEFI）的系统，设备，方法和计算机可读介质，以提供例如在电力丢失的情况下的存储器写持续性。 该系统可以包括用于托管固件接口的处理器，其可被配置为控制对易失性存储器的受保护区域中的系统变量的访问。 该系统还可以包括电源管理电路，以向处理器提供电力，并进一步向固件接口提供功率损耗指示符。 系统还可以包括备用能量存储模块，以响应于功率损耗指示器向处理器提供电力。 固件接口还被配置为响应于功率损耗指示器将系统变量从易失性存储器复制到非易失性存储器。