Function _anon_page_read

components/mm/mm_anon.c:374–401

}

static void _anon_page_read(struct rt_varea *varea, struct rt_aspace_io_msg *iomsg)
{
    rt_aspace_t curr_aspace = varea->aspace;
    rt_aspace_t backup = _anon_obj_get_backup(varea->mem_obj);

    if (rt_hw_mmu_v2p(curr_aspace, iomsg->fault_vaddr) == ARCH_MAP_FAILED)
    {
        struct rt_aspace_fault_msg msg;
        msg.fault_op = MM_FAULT_OP_READ;
        msg.fault_type = MM_FAULT_TYPE_PAGE_FAULT;
        msg.fault_vaddr = iomsg->fault_vaddr;
        msg.off = iomsg->off;
        rt_mm_fault_res_init(&msg.response);

        _fetch_page_for_varea(varea, &msg, RT_FALSE);
        if (msg.response.status != MM_FAULT_STATUS_UNRECOVERABLE)
        {
            void *saved_fault_va = iomsg->fault_vaddr;
            iomsg->fault_vaddr = (void *)(iomsg->off << MM_PAGE_SHIFT);
            read_by_mte(backup, iomsg);
            iomsg->fault_vaddr = saved_fault_va;
        }
    }
    else
    {
        read_by_mte(curr_aspace, iomsg);
    }
}

static void write_by_mte(rt_aspace_t aspace, struct rt_aspace_io_msg *iomsg)
{