公开(公告)号：US20150301955A1

公开(公告)日：2015-10-22

申请号：US14257997

申请日：2014-04-21

Applicant: QUALCOMM Incorporated

Inventor： Anatoly E. YAKOVENKO ,  Sathish Subramaniam AMBLEY ,  Ramesh CHANDRASEKHAR

IPC: G06F12/14

CPC classification number: G06F12/14 ,  G06F9/547 ,  G06F12/0842 ,  G06F12/10 ,  G06F21/71 ,  G06F21/79 ,  G06F2209/509 ,  G06F2212/1052

Abstract: Systems and methods relate to safely and efficiently operating a multiprocessing system involving cooperation of a first processor and a second processor. For example, with regard to a first process of a first processor to be handed off to a second processor for execution, a first memory protection domain (PD) is created in a common memory, the first memory PD corresponding to the first process. The first memory PD is extended between the first processor and the second processor such that the second processor is enabled to execute the first process within the first memory PD. With regard to the first process, accesses to the common memory by the first and second processors are limited to the first memory PD, which ensures safety of the first and second processors from one another.

Abstract translation: 系统和方法涉及安全和有效地操作涉及第一处理器和第二处理器的协作的多处理系统。 例如，关于要切换到第二处理器进行执行的第一处理器的第一处理，在公共存储器中创建第一存储器保护域（PD），第一存储器对应于第一处理。 第一存储器PD在第一处理器和第二处理器之间延伸，使得第二处理器能够执行第一存储器PD内的第一处理。 关于第一处理，第一和第二处理器对公共存储器的访问被限制到第一存储器PD，其确保第一和第二处理器彼此的安全性。