This is an updated version of Marc Marí's Linux DMA patch, based on version 4 from:
https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg05891.html All I have done for my "4.1" version is: - Modify it so it compiles against the latest qemu. There was a change to how fw_cfg.h is split (6f061ea10f28c) which broke the patch. - Run checkpatch and fix several problems. - Test it. This patch greatly and transparently improves boot time of the libguestfs appliance on x86, and so I'd like to see it integrated upstream. Rich.
