VFIO_DMA_UNMAP_FLAG_ALL
u32 supported_flags = VFIO_DMA_UNMAP_FLAG_ALL;
if (unmap.flags & VFIO_DMA_UNMAP_FLAG_ALL) {
bool unmap_all = unmap->flags & VFIO_DMA_UNMAP_FLAG_ALL;
VFIO_DMA_UNMAP_FLAG_ALL;
(unmap.flags & (VFIO_DMA_UNMAP_FLAG_ALL |
unmap_cmd.flags = VFIO_DMA_UNMAP_FLAG_ALL;
VFIO_DMA_UNMAP_FLAG_ALL, unmapped);