[vfio-users] posted interrupts Xeon E5 v3, v4, Xeon D

[globalgorrilla at fastmail.fm]

Hello,

Are there any differences between posted interrupt support in the Xeon 
E5 v3, v4, and Xeon D? The latter two are Broadwell, but posted 
(external) interrupts are touted with E5 v4 while (I think) VT-d posted 
interrupts are already available in E5 v3.

Thanks