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    SubjectRe: [Intel IOMMU][patch 8/8] Preserve some Virtual Address when devices cannot address entire range.
    Date
    On Tuesday 24 April 2007 23:50:26 David Miller wrote:
    > From: Ashok Raj <ashok.raj@intel.com>
    > Date: Tue, 24 Apr 2007 14:38:35 -0700
    >
    > > Its not clear if we have a very generic device breakage.. most devices
    > > on these platforms are going to be more recent, (except maybe some
    > > legacy fd)...
    >
    > I'm not so sure, there are some "modern" sound cards that have
    > a 31-bit DMA addressing limitation because they use the 31st
    > bit as a status bit in their DMA descriptors :-)

    There's also a 2GB only megaraid RAID controller that's pretty popular
    because Dell shipped it for a long time.

    -Andi



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