vmi_set_mem_event

status_t
vmi_set_mem_event(
    vmi_instance_t vmi,
    addr_t gfn,
    vmi_mem_access_t access,
    uint16_t slat_id)
{
#ifdef ENABLE_SAFETY_CHECKS
    if (!vmi)
        return VMI_FAILURE;
#endif
 
    if ( VMI_MEMACCESS_N != access ) {
        bool handler_found = 0;
        GHashTableIter i;
        vmi_mem_access_t *key = NULL;
        vmi_event_t *event = NULL;
 
        ghashtable_foreach(vmi->mem_events_generic, i, &key, &event) {
            if ( (*key) & access ) {
                handler_found = 1;
                break;
            }
        }
 
        if ( !handler_found ) {
            dbprint(VMI_DEBUG_EVENTS, "It is unsafe to set mem access without a handler being registered!\n");
            return VMI_FAILURE;
        }
    }
 
    if ( VMI_SUCCESS == driver_set_mem_access(vmi, gfn, access, slat_id) ) {
        if ( gfn > (vmi->max_physical_address >> vmi->page_shift) )
            vmi->max_physical_address = gfn << vmi->page_shift;
 
        return VMI_SUCCESS;
    }
 
    return VMI_FAILURE;
}

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