06e6ca6dd3
Some BIOSes protect memory region they reside in by using DMAR to prevent devices from doing any DMA transactions to that part of RAM. AMI refers to this as "DMA Control Guarantee". Disable the protection when address translation is enabled. I stumbled upon this while investigation a failing coredump on a device which has this feature enabled. Sponsored by: Stormshield Obtained from: Semihalf Reviewed by: kib Differential revision: https://reviews.freebsd.org/D32591 |
||
|---|---|---|
| .. | ||
| intel_ctx.c | ||
| intel_dmar.h | ||
| intel_drv.c | ||
| intel_fault.c | ||
| intel_idpgtbl.c | ||
| intel_intrmap.c | ||
| intel_qi.c | ||
| intel_quirks.c | ||
| intel_reg.h | ||
| intel_utils.c | ||
| iommu_intrmap.h | ||