Sven Schnelle <svens@xxxxxxxxxxxxxx> writes: > Hi Michael, > > On Thu, Jul 11, 2019 at 09:08:51PM +1000, Michael Ellerman wrote: >> Sven Schnelle <svens@xxxxxxxxxxxxxx> writes: >> > On Wed, Jul 10, 2019 at 05:09:29PM +0200, Christophe Leroy wrote: >> >> Le 10/07/2019 à 16:29, Sven Schnelle a écrit : >> >> > It had only one definition, so just use the function directly. >> >> >> >> It had only one definition because it was for ppc64 only. >> >> But as far as I understand (at least from the name of the new file), you >> >> want it to be generic, don't you ? Therefore I get on 32 bits it would be >> >> elf32_to_cpu(). >> > >> > That brings up the question whether we need those endianess conversions. I would >> > assume that the ELF file has always the same endianess as the running kernel. So >> > i think we could just drop them. What do you think? >> >> We should be able to kexec from big to little endian or vice versa, so >> they are necessary. > > I'll update the patch to check for a needed 32/64 bit conversion during runtime, > so we can also kexec from 32 to 64 bit kernels and vice versa. Don't know > whether that's possible on powerpc, but at least on parisc it is. On some of the Freescale (NXP) machines that should actually be possible, the hardware can run a 64 or 32-bit kernel, but I'm not sure if anyone has actually tested kexec'ing from one to the other. cheers _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
