Hi Christoph, > On Sun, Sep 27, 2020 at 08:05:07AM +0000, Sherry Sun wrote: > > 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? > > Yes. In a separate prep patch.
Okay, will do it in V2. Regards Sherry