Samsung Electronics Co., Ltd.

Eun-Ok Jo

Nak-woo Sung

Jae-Joon Yoo

Seok-Ju Yoon

Seung-Chull Suh

Taek-Ki Kim

Young-Seok Kim

Sung-Jae Lee

Sung-Min Hong

Woo-Hyung Chun

A method of operating an application processor including a central processing unit (CPU) with at least one core and a memory interface includes measuring, during a first period, a core active cycle of a period in which the at least one core performs an operation to execute instructions and a core idle cycle of a period in which the at least one core is in an idle state, generating information about a memory access stall cycle of a period in which the at least one core accesses the memory interface in the core active cycle, correcting the core active cycle using the information about the memory access stall cycle to calculate a load on the at least one core using the corrected core active cycle, and performing a DVFS operation on the at least one core using the calculated load on the at least one core.

Application processor performing a dynamic voltage and frequency scaling operation, computing system including the same, and operation method thereof

A computing system includes a processor that operates a plurality of virtual machines in which a plurality of operating systems are respectively executed. The processor executes a hypervisor that groups the plurality of virtual machines into a normal virtual machine group and a privilege virtual machine group, and that controls hardware accesses requested by the normal virtual machine group and the privilege virtual machine group. The processor executes a normal application in the normal virtual machine group, and executes a secure application in the privilege virtual machine group.

Computing system for securely executing a secure application in a rich execution environment

Growing community of inventors

Suwon-si, South Korea

Eun-Ok Jo