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:
Dec. 23, 2025
Filed:
Apr. 26, 2024
Bedrock Systems, Inc., San Francisco, CA (US);
BLUEROCK SECURITY, INC., San Francisco, CA (US);
Abstract
Physical memory isolation in a virtualized system is described. A notification is received from a guest in the virtualized system that an address space isolation component has been created in the guest. At the host of the virtualized system, a memory isolation domain that is bound with the address space isolation component is created. The memory isolation domain includes a set of second level address translation tables dedicated for that memory isolation domain. Guest-physical address (GPA) range(s) are received from the guest that are mapped into memory of the guest, and memory access permissions for the GPA range(s) are received and are being mapped for a process into the created memory isolation domain. The host determines whether the mapping for the process into the created memory isolation domain is permitted. If not permitted, the mapping is blocked thereby preventing access. If permitted, the mapping is granted thereby allowing access.