Method and apparatus for accessing physical resources

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United States of America Patent

PATENT NO 10180915
APP PUB NO 20160267026A1
SERIAL NO

15160863

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Abstract

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A method and an apparatus for accessing physical resources, is used to restrict access to physical resources of other light system kernel Light OSs by a first Light OS in a multi-kernel operating system and ensure security of accessing physical resources among the Light OSs. A method, executed by secure firmware, includes: receiving a physical address corresponding to a physical resource to be accessed by the first Light OS; determining whether the physical address corresponding to the physical resource is out of bounds; and if the physical address corresponding to the physical resource is within bounds, sending an access continuity signal to the first Light OS; or if the physical address corresponding to the physical resource is out of bounds, sending an access error signal to the first Light OS.

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Patent Owner(s)

  • HUAWEI TECHNOLOGIES CO. LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fu, Long Beijing, CN 18 61
Zhan, Jianfeng Beijing, CN 9 20
Zhang, Lixin Beijing, CN 161 2232
Zheng, Chen Beijing, CN 52 323

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