Patent ID: 8692832
Filing Date: 2014-04-08
Classification: G06F,G06T

Abstract:
1. A method for providing asymmetric virtualized graphics processing unit (vGPU) nodes in a child partition of a para-virtualized execution environment for a computing system that includes one or more processors, system memory and a physical graphics processing unit (GPU), the method comprising: an act of instantiating a render component within a root partition of the para-virtualized execution environment, the render component being configured to execute received GPU commands at the physical GPU; an act of instantiating a virtual GPU (“vGPU”) within a child partition isolated from the root partition, the vGPU being configured to virtualize the physical GPU, the vGPU including: an act of declaring the KMD as a multi-engine GPU; an act of establishing a plurality of direct memory access (DMA) channels which are at least as great in number as the number of DMA engines of the virtual nodes, each DMA channel having a unique identifier used by the KMD and render component to prevent competition by the DMA engines of the virtual nodes when accessing a DMA channel to communicate GPU commands between the corresponding DMA engine of a virtual node and the render component; and an act of the UMD scheduling each of a plurality of different types of operations for execution on a different one of the DMA engines of the virtual nodes.