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

From: Yu, Fenghua
Date: Thu Jun 18 2009 - 14:28:21 EST

>> The first patch defines iommu_identity_mapping varialbe which controls
>> identity mapping code and is 0 by default.
>The only real difference between "pt" and "identity" is hardware support.
>We should have a single value we don't have to tell users to do different
>things depending on their hardware (they won't even know what they have)
>to achieve the same result.

Technically keeping two separate options in base kernel might be clear and easy to understand. A distro might merge them together or have other usage model.


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