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:
Oct. 17, 2000
Filed:
Mar. 20, 1998
Vishal Anand, Fremont, CA (US);
VSLI Technology, Inc., San Jose, CA (US);
Abstract
A method of and a system for allowing cacheable system memory to be accessed in a non-cacheable manner. In one embodiment of the present invention, a computer system is tricked during POST (Power-On Self-Test) to reserve a first region in a non-cacheable address space for a virtual peripheral device. The computer system is then tricked during operating system startup to reserve a second region in a cacheable address space. In the present embodiment, the first region is then mapped to the second region such that accesses to the first region is automatically forwarded to the second region. As a result, objectives of the present invention are achieved as cacheable memory may be accessed via accessing non-cacheable memory of the computer system.