target-ppc: Split out SREGS get/put functions
Currently the getting and setting of Power MMU registers (sregs) take up large inline chunks of the kvm_arch_get_registers() and kvm_arch_put_registers() functions. Especially since there are two variants (for Book-E and Book-S CPUs), only one of which will be used in practice, this is pretty hard to read. This patch splits these out into helper functions for clarity. No functional change is expected. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NThomas Huth <thuth@redhat.com> Reviewed-by: NAlexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: NGreg Kurz <gkurz@linux.vnet.ibm.com>
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