Messages in this thread | | | Subject | Re: [PATCH v2 1/4] x86/mm: Export force_dma_unencrypted | From | Thomas Hellström (VMware) <> | Date | Wed, 4 Sep 2019 19:28:16 +0200 |
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On 9/4/19 2:22 PM, Christoph Hellwig wrote: > On Wed, Sep 04, 2019 at 09:32:30AM +0200, Thomas Hellström (VMware) wrote: >> That sounds great. Is there anything I can do to help out? I thought this >> was more or less a dead end since the current dma_mmap_ API requires the >> mmap_sem to be held in write mode (modifying the vma->vm_flags) whereas >> fault() only offers read mode. But that would definitely work. > We'll just need to split into a setup and faul phase. I have some > sketches from a while ago, let me dust them off so that you can > try them.
I'd be happy to.
Thanks,
Thomas
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