// check that physical address of PTE is legal
auto ppte = sim->addr_to_mem(base + idx * vm.ptesize);
if (!ppte)
- throw trap_load_access_fault(addr);
+ goto fail_access;
reg_t pte = vm.ptesize == 4 ? *(uint32_t*)ppte : *(uint64_t*)ppte;
reg_t ppn = pte >> PTE_PPN_SHIFT;
case STORE: throw trap_store_page_fault(addr);
default: abort();
}
+
+fail_access:
+ switch (type) {
+ case FETCH: throw trap_instruction_access_fault(addr);
+ case LOAD: throw trap_load_access_fault(addr);
+ case STORE: throw trap_store_access_fault(addr);
+ default: abort();
+ }
}
void mmu_t::register_memtracer(memtracer_t* t)