On Tue, Aug 23, 2016 at 1:21 PM, Balbir Singh [off-list ref] wrote:

quoted

zImage on ppc64 BE is an ELF32 file. This patch set only supports loading
ELF files of the same class as the kernel, so a 64 bit kernel can't load an
ELF32 file. It would be possible to add such support, but it would be a new
feature.

The distros I was able to check on ppc64 LE and BE all use vmlinux.
kexec-tools with kexec_load also doesn't support zImage. Do you think it is
important to support zImage?

Well if it didn't work already, I think its low priority. Michael should be
able to confirm this. Oliver's been trying to cleanup the zImage to get rid
the old zImage limitation, cc'ing him

I don't think it's ever worked so I wouldn't worry too much about
supporting it. Fixing kexec-into-zImage and fixing the 32bit wrapper
on 64bit BE kernel problem has been on my TODO list for a while, but
it's not a priority.

oliver