公开(公告)号：US20180088625A1

公开(公告)日：2018-03-29

申请号：US15279535

申请日：2016-09-29

Applicant: Intel Corporation

Inventor： Ramamurthy Krithivas ,  Mark A. Bordogna ,  James M. Sepko

IPC: G06F1/14 ,  G06F1/12

Abstract: Disclosed herein are systems and methods for initializing and synchronizing a protected real time clock via hardware connections. For example, in some embodiments, a protected real time clock on a trusted execution environment may initialize via a hardware connection to a master clock, which is synchronized to a trusted time source via a hardware connection. In some embodiments, a protected real time clock on a trusted execution environment may initialize to a master clock during a system hardware reset sequence. In some embodiments, before a system is running normally, a real time clock on an integrated Intellectual Property agent may initialize and synchronize to a protected real time clock via a hardware connection. In some embodiments, after a system is running normally, a real time clock on a discrete device may initialize and synchronize to a protected real time clock via a hardware connection.

公开(公告)号：US10509435B2

公开(公告)日：2019-12-17

申请号：US15279535

申请日：2016-09-29

Applicant: Intel Corporation

Inventor： Ramamurthy Krithivas ,  Mark A. Bordogna ,  James M. Sepko

IPC: G06F1/14 ,  G06F1/12 ,  G06F21/72 ,  G06F11/34

Abstract: Disclosed herein are systems and methods for initializing and synchronizing a protected real time clock via hardware connections. For example, in some embodiments, a protected real time clock on a trusted execution environment may initialize via a hardware connection to a master clock, which is synchronized to a trusted time source via a hardware connection. In some embodiments, a protected real time clock on a trusted execution environment may initialize to a master clock during a system hardware reset sequence. In some embodiments, before a system is running normally, a real time clock on an integrated Intellectual Property agent may initialize and synchronize to a protected real time clock via a hardware connection. In some embodiments, after a system is running normally, a real time clock on a discrete device may initialize and synchronize to a protected real time clock via a hardware connection.