geohot 997685493e pci: route DMA through vfio type1v2 when the device is behind an IOMMU ...

A misbehaving device doing raw DMA to host memory used to take the whole
system down (fatal machine check from corrupted/poisoned memory). When
the device is managed by a real IOMMU, bind it to vfio-pci and pin every
page exposed to the device (sysmem allocations, mapped CPU buffers) into
the container at iova=paddr, so a wild DMA faults in the IOMMU instead
of corrupting host memory. Falls back to vfio no-iommu (with a warning)
when no IOMMU is available. Also map BARs through the vfio device fd,
since sysfs BAR mappings are revoked under vfio-pci.

2026-08-06 10:41:56 -07:00

..

am.md

pci: route DMA through vfio type1v2 when the device is behind an IOMMU

2026-08-06 10:41:56 -07:00

developer.md

remove execitem (#15932)

2026-04-25 19:33:04 +03:00

hcq.md

hcq: refactor into peer_groups (#11277)

2025-07-18 16:34:18 +03:00

layout.md

programinfo (#15942)

2026-04-27 23:12:03 +03:00

runtime.md

CLANG -> CPU (#9189)

2025-02-20 18:03:09 -05:00

speed.md

remove intel and amx support (#16482)

2026-06-02 18:53:05 -07:00

uop.md

move files into uop dir (#10399)

2025-05-18 11:38:28 -07:00