On Sat, Dec 21, 2024 at 08:13:12PM -0600, A. Wilcox wrote: > On Dec 21, 2024, at 3:42 PM, Arnd Bergmann <arnd@xxxxxxxxxx> wrote: > > > > From: Arnd Bergmann <arnd@xxxxxxxx> > > > > Support for KVM on 32-bit Book III-s implementations was added in 2010 > > and supports PowerMac, CHRP, and embedded platforms using the Freescale G4 > > (mpc74xx), e300 (mpc83xx) and e600 (mpc86xx) CPUs from 2003 to 2009. > > > > Earlier 603/604/750 machines might work but would be even more limited > > by their available memory. > > > > The only likely users of KVM on any of these were the final Apple > > PowerMac/PowerBook/iBook G4 models with 2GB of RAM that were at the high > > end 20 years ago but are just as obsolete as their x86-32 counterparts. > > The code has been orphaned since 2023. > > > > There is still a need to support 32-bit guests in order to better > > debug problems on ppc32 kernels. This should work in theory on both > > 64-bit booke and on 64-bit book3s hosts, but it would be good to > > confirm that this is still the case before the known working option > > gets removed. [...] > That said, I would like to keep the support alive for more than just > ppc32 kernel testing. There are plenty of Power Macs with enough > memory to run some environments within KVM. Adélie’s new release > boots a full XFCE desktop in under 300 MB RAM, so even a 1 GB machine > has enough memory to run AmigaOS, Mac OS 9, or another XFCE in KVM. FWIW, I second this. I do intend to get KVM to run on my e300-based board for some relatively light guests such as Mac OS 9. I suspect I won't be able to contribute much to the maintenance, though. Best regards, J. Neuschäfer
