Method and apparatus for delegation of secure operating mode access privilege from processor to peripheral

H.G.P. Bosch (Inventor), Hubert Rae McLellan Jr (Inventor), Sape J. Mullender (Inventor)

Research output: PatentProfessional

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Abstract

In a processing system comprising a processor and a plurality of peripherals coupled to the processor, access privileges of a secure operating mode of the processor are delegated to at least a given one of the peripherals. The given peripheral is configured to store, in a secure portion of that peripheral, state information indicative of the processor being in a secure operating mode. The given peripheral is further configured to utilize the stored state information to allow the given peripheral to access at least one resource that is accessible to the processor in the secure operating mode but is not otherwise accessible to the given peripheral. The processing system may comprise, for example, a system on a chip, wherein the processor and peripherals are combined into a single integrated circuit.
Original languageUndefined
Patent numberUS20070944916
Publication statusSubmitted - 26 Nov 2007

Keywords

  • CAES-PS: Pervasive Systems
  • EWI-19367
  • IR-75688

Cite this

Bosch, H. G. P., McLellan Jr, H. R., & Mullender, S. J. (2007). Method and apparatus for delegation of secure operating mode access privilege from processor to peripheral. Manuscript submitted for publication. (Patent No. US20070944916).
Bosch, H.G.P. (Inventor) ; McLellan Jr, Hubert Rae (Inventor) ; Mullender, Sape J. (Inventor). / Method and apparatus for delegation of secure operating mode access privilege from processor to peripheral. Patent No.: US20070944916.
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title = "Method and apparatus for delegation of secure operating mode access privilege from processor to peripheral",
abstract = "In a processing system comprising a processor and a plurality of peripherals coupled to the processor, access privileges of a secure operating mode of the processor are delegated to at least a given one of the peripherals. The given peripheral is configured to store, in a secure portion of that peripheral, state information indicative of the processor being in a secure operating mode. The given peripheral is further configured to utilize the stored state information to allow the given peripheral to access at least one resource that is accessible to the processor in the secure operating mode but is not otherwise accessible to the given peripheral. The processing system may comprise, for example, a system on a chip, wherein the processor and peripherals are combined into a single integrated circuit.",
keywords = "CAES-PS: Pervasive Systems, EWI-19367, IR-75688",
author = "H.G.P. Bosch and {McLellan Jr}, {Hubert Rae} and Mullender, {Sape J.}",
year = "2007",
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Bosch, HGP, McLellan Jr, HR & Mullender, SJ 2007, Method and apparatus for delegation of secure operating mode access privilege from processor to peripheral, Patent No. US20070944916.

Method and apparatus for delegation of secure operating mode access privilege from processor to peripheral. / Bosch, H.G.P. (Inventor); McLellan Jr, Hubert Rae (Inventor); Mullender, Sape J. (Inventor).

Patent No.: US20070944916.

Research output: PatentProfessional

TY - PAT

T1 - Method and apparatus for delegation of secure operating mode access privilege from processor to peripheral

AU - Bosch, H.G.P.

AU - McLellan Jr, Hubert Rae

AU - Mullender, Sape J.

PY - 2007/11/26

Y1 - 2007/11/26

N2 - In a processing system comprising a processor and a plurality of peripherals coupled to the processor, access privileges of a secure operating mode of the processor are delegated to at least a given one of the peripherals. The given peripheral is configured to store, in a secure portion of that peripheral, state information indicative of the processor being in a secure operating mode. The given peripheral is further configured to utilize the stored state information to allow the given peripheral to access at least one resource that is accessible to the processor in the secure operating mode but is not otherwise accessible to the given peripheral. The processing system may comprise, for example, a system on a chip, wherein the processor and peripherals are combined into a single integrated circuit.

AB - In a processing system comprising a processor and a plurality of peripherals coupled to the processor, access privileges of a secure operating mode of the processor are delegated to at least a given one of the peripherals. The given peripheral is configured to store, in a secure portion of that peripheral, state information indicative of the processor being in a secure operating mode. The given peripheral is further configured to utilize the stored state information to allow the given peripheral to access at least one resource that is accessible to the processor in the secure operating mode but is not otherwise accessible to the given peripheral. The processing system may comprise, for example, a system on a chip, wherein the processor and peripherals are combined into a single integrated circuit.

KW - CAES-PS: Pervasive Systems

KW - EWI-19367

KW - IR-75688

M3 - Patent

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Bosch HGP, McLellan Jr HR, Mullender SJ, inventors. Method and apparatus for delegation of secure operating mode access privilege from processor to peripheral. US20070944916. 2007 Nov 26.