公开(公告)号：US09785576B2

公开(公告)日：2017-10-10

申请号：US14227178

申请日：2014-03-27

Applicant: Intel Corporation

Inventor： Thiam Wah Loh ,  Per Hammarlund ,  Andreas Wasserbauer ,  Swee Chong Peter Kuan ,  Eckhard Delfs ,  Deepak A. Mathaikutty ,  Stephen J. Robinson ,  Gautham N. Chinya ,  Perry H. Wang ,  Chee Weng Tan ,  Hong Wang ,  Reza Fortas

IPC: G06F12/14 ,  G11C29/52 ,  G06F21/57 ,  G11C7/10 ,  G06F21/10

CPC classification number: G06F12/1408 ,  G06F12/1491 ,  G06F21/10 ,  G06F21/575 ,  G06F2212/1052 ,  G06F2221/032 ,  Y02D10/13

Abstract: Systems and methods for employing hardware-assisted virtualization for implementing a secure video output path. An example processing system comprises: a memory; a shared interconnect; and a processing core communicatively coupled to the memory via the shared interconnect, the processing core to: initialize a first virtual machine and a second virtual machine; responsive to receiving a memory access transaction initiated by the first virtual machine to access a memory buffer, tag the memory access transaction with an identifier of the first virtual machine; and responsive to receiving a digital content decoder access transaction initiated by the second virtual machine, tag the digital decoder access transaction with an identifier of the second virtual machine.