GPU Driver Internals
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This page will detail the internals of various GPU drivers for use with I/O Virtualization.
i915
Scheduling
In-VM Scheduling
vExeclist
vGuC
Between-VM Scheduling
Memory Management
i915 Clients
GTT (Graphics Translation Table)
PPGTT (Per Process Graphics Translation Table)
Aliasing PPGTT
Real PPGTT
OpenRM
Scheduling
In-VM Scheduling
gpu-mgr
Between-VM Scheduling
nvidia.ko
Memory Management
RM Clients
amdgpu
Citations (Talks and Reading Material)
- Intel Graphics Programmer's Reference Manuals (PRM)
- i915: Hardware Contexts (and some bits about batchbuffers)
- i915: The Global GTT Part 1
- i915: Aliasing PPGTT Part 2
- i915: True PPGTT Part 3
- i915: Future PPGTT Part 4 (Dynamic page table allocations, 64 bit address space, GPU "mirroring", and yeah, something about relocs too)
- i915: Security of the Intel Graphics Stack - Part 1 - Introduction
- i915: Security of the Intel Graphics Stack - Part 2 - FW <-> GuC