MT_MEMORY_DMA_READY
map.type = MT_MEMORY_DMA_READY;
[MT_MEMORY_DMA_READY] = {
mem_types[MT_MEMORY_DMA_READY].prot_pte |= L_PTE_SHARED;
mem_types[MT_MEMORY_DMA_READY].prot_pte |= kern_pgprot;