I am trying to emulate ARMv6 on QEMU and cannot get past the early kernel boot process. I wish to emulate the arm1136 cpu on the realview-eb platform.
The config file for the kernel and my binaries can be found here: http://www.cs.columbia.edu/~cdall/qemu-realview.tar.gz To configure and compile qemu, I use the following command: # ./configure --target-list=arm-softmmu # make I am using the stable-0.12 branch on commit 307331a42a39b46487f8f4356eaa943101f6af4e To run qemu, I use this command: # qemu-system-arm -M realview-eb -cpu arm1136 -kernel ~/src/linux-arm/arch/arm/boot/zImage -nographic -append "console=ttyAMA0 debug initcall_debug" I know that I need a file system to boot, but I should at least get kernel printout here right? I've tracked the issue to occur in a ldrex instruction, which generates a data abort: start_kernel() -> boot_cpu_init() -> set_cpu_online(cpu, true) -> cpumask_set_cpu(...) -> set_bit() -> _set_bit_le() .... ldrexb r2, [r1] The instruction is in arch/arm/lib/bitops.h:8 I tried mocking around quite a bit in the kernel config, but got nowhere. Any help is greatly appreciated here. Thanks! Regards, Christoffer Dall
