I am working with a custom model powerpc board (750-based) and I am having an issue with icount (any shift value).
First, upon the first execution of the rfi instruction, I get: qemu: fatal: Raised interrupt while not in I/O function NIP 00030354 LR 00000000 CTR 00000000 XER 00000000 CPU#0 MSR 00001000 HID0 0000c484 HF 00000000 iidx 3 didx 3 Bad icount read However, the interrupt controller is one I created and there is certainly no assertion of the CPU's external interrupt line. For reference, NIP address is the first instruction in vxTaskEntry(). If I comment out the line of code that calls cpu_abort() in this case, everything works, but it runs very slowly under high interrupt load. (Once the boot-up serial console messages fly by, the system runs at a reasonable speed.) If anyone has any experience with these two issues I'd appreciate your knowledge. My goal with using icount is to have the "device model" logic execute between tcg blocks. If the host cpu gets bogged down, I'd like the number of instructions executed and time elapsed to slow down with it so it remains proportional. Steven
