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target/s390x: interpret PSW_MASK_WAIT only for TCG
KVM handles the wait PSW itself and triggers a WAIT ICPT in case it really wants to sleep (disabled wait). This will later allow us to change the order of loading a restart interrupt and setting a CPU to OPERATING on SIGP RESTART without changing KVM behavior. Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20170928203708.9376-11-david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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@ -147,7 +147,8 @@ void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr)
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s390_cpu_recompute_watchpoints(CPU(s390_env_get_cpu(env)));
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}
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if (mask & PSW_MASK_WAIT) {
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/* KVM will handle all WAITs and trigger a WAIT exit on disabled_wait */
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if (tcg_enabled() && (mask & PSW_MASK_WAIT)) {
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s390_handle_wait(s390_env_get_cpu(env));
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}
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}
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