> I think this is wrong, the high copy should remain read-only or pflash > stops working when you remove PAM.
I tried to set pc.bios as read-only and isa.bios as read&write, it doesn't work. render_memory_region doesn't honor readonly field of alias MemoryRegion. Two FlatRanges created for pc.bios and isa.bios point to the same MemoryRegion pc.bios. Both get readonly from pc.bios. Is this a bug or by design? Pc.bios and isa.bios are backed by the same memory block, so it may cause CPU TLB alias, any issue here? > > The comment only explains the "what" but not the "why" and the "why" is > not in the commit message. See also here: > Will do. Anthony
