On 24 January 2017 at 16:31, Alex Bennée <alex.ben...@linaro.org> wrote: > > Peter Maydell <peter.mayd...@linaro.org> writes: >> - /* Hack to map an additional page of ram at the top of the address >> - space. This stops qemu complaining about executing code outside RAM >> - when returning from an exception. */ >> - memory_region_init_ram(hack, NULL, "armv7m.hack", 0x1000, &error_fatal); >> - vmstate_register_ram_global(hack); >> - memory_region_add_subregion(system_memory, 0xfffff000, hack); >> - > > What stops a model inadvertently registering a block of memory on-top? > Should we check the memory region really is unassigned?
It would just be a board code bug, and a pretty implausible one I think (at least no less plausible than any other typoing of a device or memory address, 99% of which are uncheckable). thanks -- PMM
