RE: [PATCH 00/34] AMD IOMMU driver

[Duran, Leo]

On Friday, July 11, 2008 5:22 AM, Eric W. Biederman wrote:

> Small question.  Does this IOMMU also support irq remapping?
> 
> Intel is starting to merge support for their iommu that supports irq
> remapping and I am curious what the implications are going to be to
> support both of these iommus?
> 
> Assuming their is irq remapping support it isn't tied to x2apic
> support in the cpus is it?
> 
Follow-up questions: 
(1) Outside of a virtualization environment, is there functional value
for "irq remapping" by an IOMMU? And, if there is, (2) How would this
functionality get abstracted? (e.g., as dma_ops abstracts 'address
remapping' by the IOMMU)

Leo.

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