On 9/4/20 5:44 PM, Philippe Mathieu-Daudé wrote: > Salvaging cleanups patches from the RFC series "Forbid DMA write > accesses to MMIO regions" [*], propagating MemTxResult and > adding documentation. > > Philippe Mathieu-Daudé (12): > dma: Let dma_memory_valid() take MemTxAttrs argument > dma: Let dma_memory_set() take MemTxAttrs argument > dma: Let dma_memory_rw_relaxed() take MemTxAttrs argument > dma: Let dma_memory_rw() take MemTxAttrs argument > dma: Let dma_memory_read/write() take MemTxAttrs argument > dma: Let dma_memory_map() take MemTxAttrs argument
Talking with Laszlo, he wonders if we shouldn't enforce setting MemTxAttrs attrs.secure = 0 in these calls. Is there a concept of "secure DMA controller" in QEMU? Thanks, Phil.
