Invention Grant
- Patent Title: Zero copy transmission in virtualization environment
- Patent Title (中): 虚拟化环境中的零拷贝传输
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Application No.: US12625452Application Date: 2009-11-24
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Publication No.: US09535732B2Publication Date: 2017-01-03
- Inventor: Michael S. Tsirkin
- Applicant: Michael S. Tsirkin
- Applicant Address: IL Raanana
- Assignee: Red Hat Israel, Ltd.
- Current Assignee: Red Hat Israel, Ltd.
- Current Assignee Address: IL Raanana
- Agency: Lowenstein Sandler LLP
- Main IPC: G06F9/455
- IPC: G06F9/455 ; G06F9/54

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.
Public/Granted literature
- US20110126195A1 ZERO COPY TRANSMISSION IN VIRTUALIZATION ENVIRONMENT Public/Granted day:2011-05-26
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