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.
Patent No.:
Date of Patent:
Jun. 18, 2019
Filed:
Feb. 27, 2015
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Masahiko Takahashi, Tokyo, JP;
Youichi Hidaka, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2018.01); G06F 9/46 (2006.01); G06F 13/10 (2006.01); G06F 13/40 (2006.01);
U.S. Cl.
CPC ...
G06F 13/4068 (2013.01); G06F 9/455 (2013.01); G06F 9/45545 (2013.01); G06F 9/45558 (2013.01); G06F 9/46 (2013.01); G06F 13/10 (2013.01); G06F 13/4022 (2013.01); G06F 2009/45579 (2013.01); G06F 2009/45595 (2013.01);
Abstract
This invention expands the scope of application of a pass-through technology in which a guest OS directly controls a remote device that is connected via a network. This data-processing apparatus is provided with a host OS that provides a virtual hardware environment to a guest OS that performs I/O processing with respect to a device implemented in a remote apparatus connected via a network. The host OS has a bus extension unit that traps I/O instructions issued by the guest OS, encapsulates the trapped I/O instructions, and delivers the encapsulated I/O instructions to the remote apparatus as network packets.