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SubjectRe: [PATCH 4/5] misc: vop: set VIRTIO_F_ACCESS_PLATFORM for nocoherent platform
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.

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