On Wed, Sep 14, 2011 at 12:32 AM, David Woodhouse wrote:
> On Tue, 2011-09-13 at 22:31 +0300, Ohad Ben-Cohen wrote:
>> + * Traditionally the IOMMU core just handed us the mappings directly,
>> + * after making sure the size is an order of a 4KB page and that the
>> + * mapping has natural alignmen
On Tue, 2011-09-13 at 22:31 +0300, Ohad Ben-Cohen wrote:
> + * Traditionally the IOMMU core just handed us the mappings directly,
> + * after making sure the size is an order of a 4KB page and that the
> + * mapping has natural alignment.
> + *
> + * To retain this behavior, we currently advertise
Let the IOMMU core know we support arbitrary page sizes (as long as
they're an order of 4KB).
This way the IOMMU core will retain the existing behavior we're used to;
it will let us map regions that:
- their size is an order of 4KB
- they are naturally aligned
Note: Intel IOMMU hardware doesn't s
