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. 05, 2017

Filed:

May. 28, 2015
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Yihua Jin, Shanghai, CN;

Xiao Dong Lin, Shanghai, CN;

Yong Wu, Shanghai, CN;

Jianhui Li, Shanghai, CN;

Xueliang Zhong, Shanghai, CN;

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/54 (2006.01); G06F 12/0842 (2016.01); G06F 9/46 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 9/54 (2013.01); G06F 9/466 (2013.01); G06F 12/0842 (2013.01); G06F 12/0284 (2013.01); G06F 2212/1044 (2013.01); G06F 2212/283 (2013.01); G06F 2212/608 (2013.01); G06F 2212/62 (2013.01);
Abstract

Apparatuses, methods and storage media associated with multiple processor modes execution are described herein. In embodiments, an apparatus may include a processor with a plurality of processor modes, including a first processor mode to address a first address space, and a second processor mode to address a second address space, the second address space including the first address space. The apparatus may further include a signal handler to handle a signal from a kernel, in the first processor mode; and a signal handler wrapper to switch the processor to the second processor mode on delivery of the signal from the kernel, save a current extra context of the second processor mode from the second register file to a user stack, switch the processor back to the first processor mode, then invoke the signal handler to handle the signal. Other embodiments may be described or claimed.


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