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. 06, 2026
Filed:
Dec. 05, 2022
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Martijn De Kort, Mill Creek, WA (US);
Matthew David Kurjanowicz, Wenatchee, WA (US);
Yuriy Pavlenko, Lake Forest, CA (US);
Lei Kou, Redmond, WA (US);
Sangeeth Kumar, Bellevue, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A device identifies a first entry, at a virtual submission queue, which includes a command identifier and an opcode. The device determines, based on the opcode, that a command is to be either: emulated by a virtual non-volatile memory express (NVMe) controller, or executed by a physical NVMe controller. The device inserts a second entry, into a physical controller submission queue, which includes the command identifier and either: the opcode (the physical execution determination), or a placeholder command opcode (the emulation determination). Later, the device identifies a third entry, at a physical controller completion queue, which includes the command identifier. Based on the command identifier, the device fetches the first entry from the virtual submission queue. The device inserts a fourth entry, into a virtual completion queue, which includes the command identifier and either: a result of emulating the command, or a result of the NVMe controller executing the command.