4 ms·

"Note: Mavericks since 10.8.2 on Ivy Bridge (>= 2012 Macs) have enabled VT-D effectively blocking DMA requests and thwarting almost all modules." Looks l

"Note: Mavericks since 10.8.2 on Ivy Bridge (>= 2012 Macs) have enabled VT-D effectively blocking DMA requests and thwarting almost all modules." Looks like newer models have fixed it, but your suggestion would probably be nice for older systems.

epochwolf 12y ago
Per the article: If you have a OF/EFI firmware password set on the target Mac OS X, FireWire DMA is off by default.