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:
Nov. 10, 2015
Filed:
Dec. 29, 2011
Jun Qiu, Hangzhou, CN;
Chuan YE, Hangzhou, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A method for creating virtual machine, a virtual machine monitor and a virtual machine system are provided in the embodiments of this application. The method comprises: mapping guest frame number (GFN) corresponding to a pseudo-physical memory of a virtual machine to a shared zero page, the shared zero page being a page having content of all zeros in physical memory; when the GFN is written by the virtual machine and if a page exception occurs, allocating a physical memory page to relieve the mapping relation between the guest frame number (GFN) and the shared zero page, and establishing a mapping relation between the guest frame number (GFN) and a machine frame number (MFN) of the physical memory page. The method can reduce the amount of memory used in virtual machine startup, improve virtual machine density, and support the concurrent startup of a memory overcommitted number of virtual machine.