On Mon, Sep 28, 2020 at 09:50:36PM +0200, Eric Auger wrote:
> VFIO currently exposes the usable IOVA regions through the
> VFIO_IOMMU_GET_INFO ioctl. However it fails to take into account
> the dma_mask of the devices within the container. The top limit
> currently is defined by the iommu aperture.
Can we take a step back here? The dma_mask only has a meaning for
the DMA API, and not the iommu API, it should have no relevance here.
More importantly if we are using vfio no dma_mask should be set to
start with.
> + if (geo.aperture_end < ULLONG_MAX && geo.aperture_end !=
> geo.aperture_start) {
Please avoid pointlessly overlong lines.
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