ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,423,132, issued on Sept. 23, was assigned to Red Hat Inc. (Raleigh, N.C.).
"Efficient queue shadowing for virtual machines" was invented by Michael Tsirkin (Yokneam Illit, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for efficient peripheral device software request queue shadowing for virtual machines can include creating a virtual machine and assigning a peripheral device to it. They can also include assigning, to the peripheral device, a first process address space identifier (PASID) associated with a shadow memory buffer and a second PASID associated with a device data buffer. They can further include causing a host inpu...