Messages in this thread | | | Date | Thu, 15 May 2008 18:16:19 +0900 | Subject | Re: [PATCH 0/2] x86: per-device dma_mapping_ops | From | FUJITA Tomonori <> |
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On Thu, 15 May 2008 11:01:09 +0200 Andi Kleen <andi@firstfloor.org> wrote:
> FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> writes: > > > This patchset adds per-device dma_mapping_ops support for > > CONFIG_X86_64 like POWER architecture does. This change enables us to > > cleanly fix the Calgary IOMMU issue that some devices are not behind > > the IOMMU [1]. It also would be helpful to handle KVM PCI passthrough. > > This makes it basically impossible to do stack ops, which some > people have been doing.
Seems that I misunderstand what those people want.
What those people want to do and how the stack ops achieve it? Or can you tell me where their patches are?
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