@humppa
QEMU supports various target platforms, not only x86 (that you listed).
Right, my mistake. The powerpc systems are:
* PREP (PowerPC processor)
* G3 BW PowerMac (PowerPC processor)
* Mac99 PowerMac (PowerPC processor, in progress)
Thus:
QEMU emulates the following PowerMac peripherals:
- UniNorth PCI Bridge
- PCI VGA compatible card with VESA Bochs Extensions
- 2 PMAC IDE interfaces with hard disk and CD-ROM support
- NE2000 PCI adapters
- Non Volatile RAM
- VIA-CUDA with ADB keyboard and mouse.
QEMU emulates the following PREP peripherals:
- PCI Bridge
- PCI VGA compatible card with VESA Bochs Extensions
- 2 IDE interfaces with hard disk and CD-ROM support
- Floppy disk
- NE2000 network adapters
- Serial port
- PREP Non Volatile RAM
- PC compatible keyboard and mouse.
Yet, to fully be able to boot, drivers for these (either PowerMac or PREP) HW would be needed.
You could try to modify a Linux kernel in order to access physical hw devices.
I'm not sure what the point of the emulation would then be, though.