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Date: Tue, 21 Jul 2015 09:10:44 +0200
From: Thomas Huth <thuth@redhat.com>
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Subject: Re: [Qemu-devel] [RFC PATCH 2/2] spapr: -kernel: allow linking with
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To: Andrew Jones <drjones@redhat.com>
Cc: dgibson@redhat.com, agraf@suse.de, qemu-devel@nongnu.org, David Gibson <david@gibson.dropbear.id.au>

On 20/07/15 15:09, Andrew Jones wrote:
> On Mon, Jul 20, 2015 at 08:47:53AM +0200, Thomas Huth wrote:
...
>> ... or you could try to get the elf_reloc code working for POWER, too
>> (see include/hw/elf_ops.h). That way QEMU would take care of relocating
>> your program. (you can peek at elf_apply_rela64() in
>>  https://github.com/aik/SLOF/blob/master/lib/libelf/elf64.c
>> if you want to know what basically has to be done for POWER relocations).
> 
> kvm-unit-tests doesn't load the unit test elf itself. It relies on QEMU's
> -kernel parameter to get the "kernel" (the unit test) into memory.

I was talking about the -kernel parameter of QEMU. That triggers the
load_elf() function of QEMU - and this function can provide ELF
relocation, too. It is used for s390x already to relocate the firmware
there, so I think it could be done for ppc64, too.

 Thomas