4 results about "Virtual hosting" patented technology

An exemplary procedure involves a host operating system (host OS) receiving an initial request to allocate memory pages in virtual host memory. In response, the host OS allocates a first guest memory region of the virtual host memory to a virtual machine by at least pinning the first guest memory region. The procedure further involves the host OS receiving a second and a third request to allocate memory pages. In response, the host OS allocates a second and a third guest memory region to the virtual machine. The second guest memory region overlaps a first subregion of the first guest memory region, and the third guest memory region overlaps a second subregion of the first guest memory region.The procedure further involves unpinning, by the host OS, a third subregion of the first guest storage region, with the third subregion not overlapping either the first or the second subregion.

The application discloses a high-availability array type USB device management system and method. The system comprises an embedded control surface module, a data surface cascade module and a power surface independent control module; the data surface cascade module comprises a hub controller and a plurality of USB physical ports; the power surface independent control module comprises a load switch for independent power supply of the ports and an analog-to-digital converter for collecting power supply current characteristics; a host computer end is configured with a virtual host controller interface driver; the embedded control surface module obtains characteristic quantity to calculate a deadlock state evaluation factor, controls power supply reset when the evaluation factor is over a threshold value, intercepts a request block, encapsulates a custom topology header and sends the custom topology header to the host computer end to build a virtual topology tree in a kernel. The application can accurately identify a bottom-layer hardware deadlock and apply hard isolation, isolate system device enumeration disorder caused by peripheral reset and ensure that an automatic control instruction has absolute physical certainty.

A Universal Flash Storage (UFS) host controller supporting input / output virtualization (IOV) is disclosed. The host controller comprises a programmable Function ID (FID) to Stream ID (SID) mapping unit configured to assign unique stream IDs to physical and virtual UFS Host Controller Interface (UFSHCI) functions. The mapping unit includes registers accessible only within the physical UFSHCI's address space, allowing exclusive control by the host operating system. When a data transfer request is received, the host controller maps it to an assigned stream ID based on the programmable mapping. A UFS device coupled to the host controller validates received stream IDs before executing data transfer requests. This mechanism enables isolation of data streams between virtual functions, enhancing security in virtualized storage environments and accommodating evolving system requirements.