BOUNCE_MAP_SHIFT
map = &domain->bounce_maps[iova >> BOUNCE_MAP_SHIFT];
head_map = &domain->bounce_maps[(iova & PAGE_MASK) >> BOUNCE_MAP_SHIFT];
map = &domain->bounce_maps[iova >> BOUNCE_MAP_SHIFT];
map = &domain->bounce_maps[iova >> BOUNCE_MAP_SHIFT];
map = &domain->bounce_maps[iova >> BOUNCE_MAP_SHIFT];
bounce_pfns = domain->bounce_size >> BOUNCE_MAP_SHIFT;
if (!((pfn << BOUNCE_MAP_SHIFT) & ~PAGE_MASK))
int bounce_pfns = domain->bounce_size >> BOUNCE_MAP_SHIFT;
int bounce_pfns = domain->bounce_size >> BOUNCE_MAP_SHIFT;
bounce_pfns = PAGE_ALIGN(bounce_size) >> BOUNCE_MAP_SHIFT;
#define BOUNCE_MAP_SIZE (1 << BOUNCE_MAP_SHIFT)