Merge branch 'ppc64/initial-drop-v7' of https://github.com/rhdrjones/kvm-unit-tests into HEAD

This series brings basic setup; starts a test's C entry point, main(),
and printf, exit, and malloc work

Merge branch 'ppc64/initial-drop-v7' of https://github.com/rhdrjones/kvm-unit-tests into HEAD

This series brings basic setup; starts a test's C entry point, main(),
and printf, exit, and malloc work. Three more series should follow this
one which must bring; vector support, mmu support, and smp support, at
which point I believe the framework could just evolve with the creation
of unit tests.

Tested on TCG and a P8 kvm_pr machine, and Laurent has tested it on
both a PowerMac G5 (kvm_pr) and a kvm_hv machine. I'm looking forward
to hearing more testing feedback from others though.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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powerpc/ppc64: adapt arm's setup

Copy arm's setup code (also DT based) over to powerpc, adapting
it a bit. Also bring over arm's setup selftest, giving powerpc
its first test.

The largest change fr

powerpc/ppc64: adapt arm's setup

Copy arm's setup code (also DT based) over to powerpc, adapting
it a bit. Also bring over arm's setup selftest, giving powerpc
its first test.

The largest change from arm's setup.c is that instead of using a
hardcoded SMP_CACHE_BYTES, cpu_set() is extended to extract the
icache and dcache line sizes from the cpu DT nodes. That change
also requires that we call cpu_init() before mem_init() in setup().

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

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