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bus_dma_dmar_load_ident((): load identity mapping into the map
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Authored by kib on Nov 26 2019, 5:51 PM.
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Not tested. There will be a trivial conflict in bus_dma.h, I will resolve it later.

With this patch and respective call (https://people.freebsd.org/~mav/ntb_hw_intel_dmar.patch) Intel NTB on Xeon v4 happily works with DMAR enabled. Thanks!

This revision is now accepted and ready to land.Nov 26 2019, 7:36 PM