[PATCH 1/2] IOMMU Identity Mapping Support: iommu_identity_mapping definition

[Muli Ben-Yehuda]

On Thu, Jun 18, 2009 at 11:05:14AM -0700, Fenghua Yu wrote:

> IOMMU Identity Mapping Support: iommu_identity_mapping definition
> 
> Identity mapping for IOMMU defines a single domain to 1:1 map all
> pci devices to all usable memory.

Why use VT-d at all in this case? Do you have a use-case in mind?

Cheers,
Muli

> This method may lose some of DMA remapping benefits like isolation.

I think you meant s/may/will/.

Cheers,
Muli
-- 
Muli Ben-Yehuda | muli at il.ibm.com | +972-4-8281080
Manager, Virtualization and Systems Architecture
Master Inventor, IBM Haifa Research Laboratory