Make mips_tcg_init() non-static and add tcg_enabled() check to suppress
it for qtest.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Introduce a realizefn and set realized = true from cpu_mips_init().
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Note that target-alpha accesses this field from TCG, now using a
negative offset. Therefore the field is placed last in CPUState.

Pass PowerPCCPU to [kvm]ppc_fixup_cpu() to facilitate this change.

Move common parts of mips cpu_state_reset() to mips_cpu_reset().

Acked-by: Richard Henderson <rth@twiddle.net> (for alpha)
[AF: Rebased onto ppc CPU subclasses and openpic changes]
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Move code not dependent on mips_def_t from cpu_mips_init() into a
QOM initfn, as a start.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NRichard Henderson <rth@twiddle.net>

Embed CPUMIPSState as first member of QOM MIPSCPU.

Let CPUClass::reset() call cpu_state_reset() for now.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NRichard Henderson <rth@twiddle.net>