Hi Sam,
> Older big-endian ppc64 kernels don't include the FIXUP_ENDIAN check,
> meaning if we kexec from a little-endian kernel the target kernel will
> fail to boot.
> Returning to big-endian before we enter the target kernel ensures that
> the target kernel can boot whether or not it includes FIXUP_ENDIAN.
Thanks!
I wonder if we can do something simpler, and always enter via rfid.
Avoids the need for the endian trampoline. Something like:
mtsrr0 r4
mfmsr r5
clrrdi r5,r5,1 /* Clear MSR_LE */
mtsrr1 r5
li r5,0
rfid
Anton
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