Invention Grant
US09535732B2 Zero copy transmission in virtualization environment 有权
虚拟化环境中的零拷贝传输

Zero copy transmission in virtualization environment
Abstract:
A system for providing a zero copy transmission in virtualization environment includes a hypervisor that receives a guest operating system (OS) request pertaining to a data packet associated with a guest application, where the data packet resides in a buffer of the guest OS or a buffer of the guest application and has at least a partial header created during the networking stack processing. The hypervisor further sends, to a network device driver, a request to transfer the data packet over a network via a network device, where the request identifies the data packet residing in the buffer of the guest OS or the buffer of the guest application, and the hypervisor refrains from copying the data packet to a hypervisor buffer.
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