Abstract: A method and apparatus for transferring data from a first to a second memory of a computer system. The method comprises (i) initializing a descriptor with a description of physical addressing of a first section of a first array of the first memory; (ii) updating a mask associated with the descriptor with an indication for transferring data from a first sub-section of the first section to the second memory, the mask and the data managed by an application on a first virtual machine of the computer system, the application isolated from the physical addressing of the first section; (iii) responsive to the updated mask, (a) determining physical addresses of the first sub-section based on the description, and (b), transferring the data from the first sub-section to the second memory; and (iv) clearing at least a portion of the updated mask to indicate completion of transferring the data.

Abstract: A method and apparatus for utilizing a bridged peripheral system within a bridged computer system having a host computer and a remote computer. The host computer executes peripheral driver software that initiates at least one communication. The host computer also executes a peripheral emulation that represents a peripheral of the remote client computer, where the at least one communication is processed by the peripheral emulation. In one embodiment, the peripheral is an audio codec.