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I/O Paravirtualization at the Device File Boundary
I/O Paravirtualization at the Device File Boundary

... If supported by the device driver, Paradice allows for multiple guest VMs to concurrently use the device because the device file interface allows multiple processes to issue file operations simultaneously. In this case, the same CVD backend supports requests from CVD frontends of all guest VMs. Some ...
Operating Systems must support GPU abstractions
Operating Systems must support GPU abstractions

Microkernel Operating Systems
Microkernel Operating Systems

... E.g., interrupt handling, scheduling, programming the hardware E.g., memory management, file servers, network stack, device drivers ...
Windows XP Kernel Architecture
Windows XP Kernel Architecture

... • Interacts with microkernel, device drivers, and native API interface ...
1

Direct Rendering Manager



The Direct Rendering Manager (DRM) is a subsystem of the Linux kernel responsible for interfacing with GPUs of modern video cards. DRM exposes an API that user space programs can use to send commands and data to the GPU, and perform operations such as configuring the mode setting of the display. DRM was first developed as the kernel space component of the X Server's Direct Rendering Infrastructure, but since then it has been used by other graphic stack alternatives such as Wayland.User space programs can use the DRM API to command the GPU to do hardware accelerated 3D rendering, video decoding as well as GPGPU computing.
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