Re: [Qemu-devel] Looking for an SH4 QEMU-ready kernel (for TCG conversion)

["M. Warner Losh" <imp@bsdimp.com>]

In message: <20080831183615.GA11830@hall.aurel32.net>
            Aurelien Jarno <aurelien@aurel32.net> writes:
: On Sun, Aug 31, 2008 at 06:36:36PM +0200, Andreas Färber wrote:
: > 
: > Am 30.08.2008 um 00:29 schrieb Aurelien Jarno:
: > 
: > >On Fri, Aug 29, 2008 at 11:12:13PM +0200, Andreas Färber wrote:
: > >>Hi,
: > >>
: > >>Am 28.08.2008 um 23:17 schrieb Aurelien Jarno:
: > >>
: > >>>By the way, patches
: > >>>for the PPC and Alpha target are also welcome.
: > >>
: > >>I'd be interested in helping with ppc but I have a problem testing  
: > >>such
: > >>changes: ppc-softmmu does not boot anything, ppc-linux-user does  
: > >>not seem
: > >
: > >ppc-softmmu is able to boot prep kernels (-M prep), but  
: > >unfortunately the
: > >support for this platform has been removed from upstream along with  
: > >the
: > >ppc/ arch (since 2.6.26).
: > 
: > According to Wikipedia, Debian and NetBSD still maintain PReP support.
: > http://en.wikipedia.org/wiki/PowerPC_Reference_Platform
: 
: This is now mostly wrong, PReP support in Debian has been removed from
: unstable just after the release of Etch. Debian Lenny won't support it.
: 
: > What's missing in QEMU's default g3bw machine that only PReP is known  
: > to work? I've tested booting into Debian 4.0 r4a netinst CD (2.6.18?)  
: > on a real PowerMac G3 blue&white and it works.
: 
: A decent BIOS.
: 
: > Does removal of "the ppc/ arch" in 2.6.26 above imply that recent  
: > Linux kernels will only work on ppc64 and power?
: > 
: 
: The ppc/ arch is a new way of supporting both PowerPC and PowerPC64
: machines. The CPU support is the same, but it only supports machines
: that have been ported to this new arch. Theoretically it is possible
: to add PReP support to the ppc/ arch, but nobody cares anymore about
: PReP.

s=ppc/=powerpc/=g

arch/powerpc is the new way.  arch/ppc is the old.  Nobody bothered to
port things forward.

warner