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:
Apr. 14, 2020
Filed:
Jul. 07, 2017
Nicira, Inc., Palo Alto, CA (US);
Prasad Dabak, Pune, IN;
Achindra Bhatnagar, Pune, IN;
Nicira, Inc., Palo Alto, CA (US);
Abstract
An example method of managing guest code in a virtualized computing instance of a virtualized computing system includes: receiving, at a hypervisor that manages the virtualized computing instance, identifiers for a first guest-physical memory page, which stores a patched version of the guest code, and a second guest-physical memory page, which stores an original version of the guest code; modifying an entry in a nested page table (NPT), which is associated with the first guest-physical memory page, to cause an exception to the hypervisor in response to a first read operation, performed by first software in the virtualized computing instance, which targets the first guest-physical memory page; and executing, at the hypervisor in response to the exception, a second read operation that emulates the first read operation, but targets the second guest-physical memory page.