Additional secured execution environment with SR-IOV and xHCI-IOV
View Patent ↗An apparatus is described herein. The apparatus includes a Universal Serial Bus (USB) component and a controller interface. The controller interface is to allocate register space for interfacing with the USB component and the USB component is virtualized into multiple instantiations. The apparatus also includes a secure environment, and the secure environment further virtualizes the multiple instantiations such that the multiple instantiations are owned by the secure environment.
1. An apparatus, comprising:
a Universal Serial Bus (USB) device;
a controller interface, wherein the controller interface is an eXtensible host controller interface (xHCI) and is to allocate register space for interfacing with the USB device and the USB device is virtualized into multiple instantiations; and
a secure environment, wherein the secure environment is to virtualize the multiple instantiations by emulating a register space for the multiple instantiations and a USB hub is virtualized into multiple instantiations using a combination of a combination of Single Root Input/Output Virtualization (SR-IOV) and xHCI-Input/Output Virtualization (xHCI-IOV) via the controller interface.
2. The apparatus of claim 1 , wherein the secure environment is a management engine.
3. The apparatus of claim 1 , comprising a plurality of USB devices, wherein the controller interface is to allocate register space for interfacing with the plurality of USB devices.
4. The apparatus of claim 3 , wherein at least one USB device of the plurality of USB devices is owned by the secure environment.
5. The apparatus of claim 1 , wherein the secure environment is enabled by a dedicated processor or microcontroller.
6. The apparatus of claim 1 , wherein the USB hub is virtualized into multiple instantiations via a physical function and an associated virtual function.