The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 21, 2021

Filed:

Mar. 22, 2019
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Rupin H. Vakharwala, Hillsboro, OR (US);

Paula Petrica, Portland, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/0862 (2016.01); G06F 13/42 (2006.01); G06F 12/1036 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0862 (2013.01); G06F 12/00 (2013.01); G06F 12/1036 (2013.01); G06F 13/42 (2013.01); G06F 2213/0026 (2013.01);
Abstract

Systems, methods, and devices can include circuitry or computer program products to receive a memory address translation request message from a downstream connected device; identify, from the memory address translation request message, a permission indication that the device intends to perform a write access to one or more memory address locations specified in the memory address translation request message; identify, from an address translation and protection table (ATPT), a dirty bit value associated with the one or more memory address locations; and transmit a translation of the one or more memory address locations and a read or read+write permission to the device based on the permission indication in the memory address translation request message and the dirty bit.


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