On Fri, Oct 1, 2010 at 3:03 PM, Olof Johansson <o...@lixom.net> wrote: > On Sat, Oct 02, 2010 at 06:51:55AM +1000, Benjamin Herrenschmidt wrote: >> On Fri, 2010-10-01 at 12:59 -0500, Kumar Gala wrote: >> > I'm not against it, and I agree some of the patches seem like good >> > clean up. I'm concerned about this bit rotting pretty quickly. >> >> Maybe. Most of it doesn't seem to be that bit-rottable. >> >> The changes to the asm stuff in misc_32.S for example are functions we >> never ever touch once written (libgcc replacements) so I don't see them >> rotting more with LE support than they did with BE :-) > > Does KVM/qemu support running LE guest on BE host? That'd help keeping > the bitrot lower. :)
Surprisingly, qemu has very poor support for the concept of endianness. The fact that BE PowerPC works on both BE and LE hosts in Qemu today is more accidental than anything else (the special curse of endianness is that two wrongs make a right). Supporting LE PowerPC guests would be a dramatic effort, and I'm pretty sure it would impact other qemu architectures as well. -Hollis _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev