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:
Mar. 29, 2016
Filed:
Jun. 30, 2015
Intel Corporation, Santa Clara, CA (US);
Baohong Liu, Cupertino, CA (US);
Ritu Sood, Milpitas, CA (US);
Kuo-Lang Tseng, Cupertino, CA (US);
Madhukar Tallam, Fremont, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Embodiments of an invention for controlling access to groups of memory pages in a virtualized environment are disclosed. In one embodiment, a processor includes a virtualization unit and a memory management unit. The virtualization unit is to transfer control of the processor to a virtual machine. The memory management unit is to perform, in response to an attempt to execute on the virtual machine an instruction stored on a first page, a page walk through a paging structure to find a second page and to allow access to the second page without exiting the virtual machine based at least in part on a bit being set in a leaf level entry corresponding to the second page in the paging structure and a corresponding bit being set in each entry corresponding to the first page in each level of the paging structure.