公开(公告)号：US20240241811A1

公开(公告)日：2024-07-18

申请号：US18155204

申请日：2023-01-17

Applicant: STMicroelectronics International N.V.

Inventor： Avneep Kumar GOYAL ,  Amritanshu ANAND ,  Satinder Singh MALHI

IPC: G06F11/36 ,  G06F11/07 ,  G06F11/14

CPC classification number: G06F11/3656 ,  G06F11/0772 ,  G06F11/1441

Abstract: In general, trace and debug logic should not be affected by all functional or destructive resets of a processing system. However, certain events, such as power supply related events may be utilized to reset the trace and debug logic since the trace and debug logic may cease correct operation if the provided power supply is insufficient. In addition, it may be beneficial for a debugger to initiate requests to reset trace and debug logic. Further, fault triggers from critical path monitors may be candidates as a source of reset for the trace and debug circuitry. For example, when critical path monitors trigger a fault, the fault may be from the logic associated with either trace and debug logic or the logic which is being debugged or traced. As such, in some instances both trace and debug circuitry and the processing system may be inoperable and may need to be reset.

公开(公告)号：US20220334862A1

公开(公告)日：2022-10-20

申请号：US17235206

申请日：2021-04-20

Applicant: STMicroelectronics International N.V. ,  STMicroelectronics Application GmbH

Inventor： Deepak BARANWAL ,  Amritanshu ANAND ,  Roberto COLOMBO ,  Boris VITTORELLI

IPC: G06F9/455 ,  G06F9/30 ,  G06F9/48

Abstract: Disclosed herein is hardware for easing the process of changing the execution mode of a virtual machine and its associated resources. By adopting the hardware, it is possible to trigger a change in the execution mode in an automatic way, without software intervention, and without interfering with the execution of other virtual machines. In addition, in case an error has occurred for a virtual machine and it is detected, the hardware can be used to disable the resources associated with that virtual machine and generate notification of the completion this operation to other hardware, which will complete the reset of the virtual machine. By adopting the hardware, the execution mode change is simplified and offers configurability and flexibility for a system running multiple virtual machines.