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target/s390x: use program_interrupt() in per_check_exception()

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Clean it up by reusing program_interrupt(). Add a concern regarding
ilen.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170913132417.24384-11-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2017-09-13 15:24:05 +02:00 committed by Cornelia Huck
parent 525f4b65c7
commit e0b1a8a14e
1 changed files with 9 additions and 6 deletions
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15
target/s390x/misc_helper.c
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@ -447,14 +447,17 @@ void HELPER(chsc)(CPUS390XState *env, uint64_t inst)
#ifndef CONFIG_USER_ONLY
void HELPER(per_check_exception)(CPUS390XState *env)
{
CPUState *cs = CPU(s390_env_get_cpu(env));
uint32_t ilen;
if (env->per_perc_atmid) {
env->int_pgm_code = PGM_PER;
env->int_pgm_ilen = get_ilen(cpu_ldub_code(env, env->per_address));
cs->exception_index = EXCP_PGM;
cpu_loop_exit(cs);
/*
* FIXME: ILEN_AUTO is most probably the right thing to use. ilen
* always has to match the instruction referenced in the PSW. E.g.
* if a PER interrupt is triggered via EXECUTE, we have to use ilen
* of EXECUTE, while per_address contains the target of EXECUTE.
*/
ilen = get_ilen(cpu_ldub_code(env, env->per_address));
program_interrupt(env, PGM_PER, ilen);
}
}