Invention Application
- Patent Title: PROCESSORS, METHODS, SYSTEMS, AND INSTRUCTIONS TO ALLOW SECURE COMMUNICATIONS BETWEEN PROTECTED CONTAINER MEMORY AND INPUT/OUTPUT DEVICES
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Application No.: US14866478Application Date: 2015-09-25
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Publication No.: US20170090800A1Publication Date: 2017-03-30
- Inventor: Ilya Alexandrovich , Vladimir Beker , Gideon Gerzon , Vincent R. Scarlata
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F13/40 ; G06F13/16

Abstract:
An integrated circuit of an aspect includes protected container access control logic to perform a set of access control checks and to determine to allow a device protected container module (DPCM) and an input and/or output (I/O) device to communicate securely through one of direct memory access (DMA) and memory-mapped input/output (MMIO). This is done after it has been determined that at least the DPCM and the I/O device are mapped to one another, an access address associated with the communication resolves into a protected container memory, and a page of the protected container memory into which the access address resolves allows for said one of DMA and MMIO.
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