Invention Publication
- Patent Title: ACCELERATING PARA-VIRTUALIZATION OF A NETWORK INTERFACE USING DIRECT MEMORY ACCESS (DMA) REMAPPING
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Application No.: US18388505Application Date: 2023-11-09
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Publication No.: US20240184607A1Publication Date: 2024-06-06
- Inventor: Yigang ZHOU , Cunming LIANG
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Main IPC: G06F9/455
- IPC: G06F9/455 ; G06F12/0802 ; G06F13/24 ; G06F13/28

Abstract:
An example electronic apparatus is for accelerating a para-virtualization network interface. The electronic apparatus includes a descriptor hub performing bi-directionally communication with a guest memory accessible by a guest and with a host memory accessible by a host. The guest includes a plurality of virtual machines. The host includes a plurality of virtual function devices. The virtual machines are communicatively coupled to the electronic apparatus through a central processing unit. The communication is based upon para-virtualization packet descriptors and network interface controller virtual function-specific descriptors. The electronic apparatus also includes a device association table communicatively coupled to the descriptor hub and to store associations between the virtual machines and the virtual function devices. The electronic apparatus further includes an input-output memory map unit (IOMMU) to perform direct memory access (DMA) remapping and interrupt remapping.
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