On 5 October 2013 10:19, Peter Maydell <peter.mayd...@linaro.org> wrote: > On 5 October 2013 13:41, Giridhar Maruthy <giridhar.maru...@linaro.org> wrote: >> I am using mach-virt in qemu which boots correctly when RAM start >> address is 0x8000000. But if I change the address to anything like >> 0x9000000, the mach-virt machine just hangs, not even an error >> message. > > The kernel automatically figures out where in physical memory it should > decompress itself to (CONFIG_AUTO_ZRELADDR), but the mechanism > it uses to do this assumes that RAM starts at a 128MB boundary.
ok. But changing the RAM start to 0x20000000 (2 followed by seven zeros) still does not work even though is at 128MB boundary. > So we must keep the board's RAM start address at a 128MB boundary. > Why did you want to move VIRT_MEM up? There's plenty of space > below it still, I would have thought. The purpose is that I wanted to use mach-virt as a base to test other machines' properties like different RAM base and size, peripherals at different locations, etc. Thanks, Giridhar
