Messages in this thread |  | | | From | "Yu, Fenghua" <> | | Date | Thu, 18 Jun 2009 11:28:06 -0700 | | Subject | RE: [PATCH 1/2] IOMMU Identity Mapping Support: iommu_identity_mapping definition |
>> >> The first patch defines iommu_identity_mapping varialbe which controls >the >> 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.
Thanks.
-Fenghua
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