(In reply to Guillaume GARDET from comment #44) > (In reply to Chester Lin from comment #43) > > (In reply to Chester Lin from comment #42) > > > Besides, I wonder if we might have any chance to delete the first page > > > reserved by rpi2 firmware? Instead of rebasing the FDT offset I have > > > mentioned in my patch, I found that deleting this reserved page can also > > > solve this issue although I have not sure if there's any side-effect. > > > > I am thinking about this because the first 128MB will be totally ignored and > > will not be used once the kernel base rounds up to 0x8000000. > > I asked upstream to move this reserved 4KiB of RAM upper in memory: > https://github.com/raspberrypi/firmware/issues/1199 > Let's see how it goes. As expected, we should not expect much from upstream: https://github.com/raspberrypi/firmware/issues/1199#issuecomment-513687604 And we should find a proper solution in kernel.