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Implement support for DART hardware #6

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5 tasks
Lunaphied opened this issue Jun 8, 2021 · 0 comments
Open
5 tasks

Implement support for DART hardware #6

Lunaphied opened this issue Jun 8, 2021 · 0 comments
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@Lunaphied
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enhancement New feature or request

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@Lunaphied
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The DART is the main IOMMU device that is used by the M1 chipset and will require support since it will be used by system software desiring to make use of the USB controllers or PCIe, which both will be remapped first using the DART.

I suspect that it will be relatively simple as the device features currently required for these tasks are just basic mapping primitives and the DART in many ways resembles the existing ARM SMMU, however implementing an IOMMU in QEMU is not exactly the most documented thing.

Completion tracking

  • Investigate IOMMU architecture in QEMU
  • Create stub DART device that reports configuration accesses
  • Flesh out with actual mapping support
  • Test somehow
  • Clean up code (potentially a different issue)
@Lunaphied Lunaphied added the enhancement New feature or request label Jun 8, 2021
@Lunaphied Lunaphied self-assigned this Jun 8, 2021
@Lunaphied Lunaphied mentioned this issue Jun 8, 2021
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