Bjorn Helgaas <helgaas@xxxxxxxxxx> writes: > > I don't know how powerpc kernels are built: can you build a kernel > that will run on PowerNV as well as on different powerpc systems? Yes you can. But there are some restrictions. You can only build a 64-bit OR a 32-bit kernel. And within 64-bit you can only build a *kernel* for the "server architecture (~= IBM CPUs)" or the "embedded architecture (Freescale/NXP)". So in practice you can build a 64-bit kernel that supports: - powernv (bare metal on IBM server chips) - pseries (virtualised on IBM server chips or qemu) - powermac (Apple G5s) - pasemi (long dead but still used by some Amiga folks?) - Cell/PS3 (also long dead) > If so, is it acceptable to force that kernel to user 64K alignment even > when it's running on non-PowerNV systems? Probably, but I'm not sure TBH. Benh will know, I'll try and get his attention. cheers
