Re: [Qemu-devel] Run Qemu ARM system without MMU (MMUless)

[Thorsten Zitterell]

Tieu Ma Dau wrote:
> If I want to run Qemu ARM system to simulate a system without MMU (MMU 
> less), how can I do?
> Thanks for your responses and best reagards,
> Tieu

Hi,

according to target-arm/helper.c the MMU is enabled/disabled with 
coprocessor 15.

    if ((env->cp15.c1_sys & 1) == 0) {
        /* MMU diusabled.  */
        *phys_ptr = address;
        *prot = PAGE_READ | PAGE_WRITE;
    } else {
        /* Pagetable walk.  */
    }

It is disabled when QEMU starts...

--
Thorsten