Hi
I am trying to port a Haswell laptop and I would want it to have IOMMU support.
My chipset supports VT-d but CPU does not. The official info from Intel says
the PC needs chipset, CPU and BIOS to support VT-d to use IOMMU. I think this
is not true because I saw some boards in board status have working IOMMU with
no VT-d support in chipset but with coreboot advertising DMAR table to OS and
CPU with VT-d support. Sapphire H61 is a example of this. But other H61
coreboot boards such as P8H61-M LX that have CPU without VT-d advertise no
IOMMU capability. So what is really required for full IOMMU ? Do I have chance
for full, working IOMMU on this laptop?
Thanks,
Lud
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