Messages in this thread | | | From | Sherry Sun <> | Subject | RE: [PATCH 4/5] misc: vop: set VIRTIO_F_ACCESS_PLATFORM for nocoherent platform | Date | Sun, 27 Sep 2020 08:05:07 +0000 |
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Hi Christoph,
> On Fri, Sep 25, 2020 at 03:26:29PM +0800, Sherry Sun wrote: > > Set VIRTIO_F_ACCESS_PLATFORM feature for nocoherent platform, since it > > needs the DMA API for virtio. > > Given that VOP is a plug-in PCIe card VIRTIO_F_ACCESS_PLATFORM must > always be set, as the DMA mapping details are not something the virtio > implementation decides on, but the host PCIe/iommu implementation.
So do you mean that we should remove the check, and set VIRTIO_F_ACCESS_PLATFORM feature directly?
Regards Sherry
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