On Thu, Sep 03, 2020 at 01:08:19PM +0200, Philippe Mathieu-Daudé wrote: > The main patch is: > "exec/memattrs: Introduce MemTxAttrs::direct_access field". > This way we can restrict accesses to ROM/RAM by setting the > 'direct_access' field. Illegal accesses return MEMTX_BUS_ERROR. QEMU needs to simulate the behavior of real hardware. What is the behavior of real hardware? Stefan