Re: VT-d posted interrupts support

Li, Fei1

On Sun, Jan 17, 2021 at 08:46:43AM -0800, reswara1@... wrote:

I am looking forward to buying intel embedded SoC that supports VT-d posted
interrupts. There are a lot of intel processors used for embedded systems that
support VT-d.

Q1) Does VT-d support guarantees VT-d posted interrupts mechanism?
No, VT-d hardware could support Interrupt Remapping or Interrupt Posting or both of them.

Q2) If not, what are the intel embedded processors that support VT-d posted
interrupt mechanism?
Interrupt posting includes hardware support for optimized processing of interrupt requests from I/O
devices (Physical Functions, SR-IOV Virtual Functions, or IntelĀ® Scalable IOV Assignable Device
Interfaces (ADIs)) that are directly assigned to a virtual machine.


Thank you so much for your help in advance!

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