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target-s390x: PER successful-branching event support

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For the PER successful-branching event support, we can't rely on any
QEMU infrastucture. We therefore call an helper in all places where
a branch can be taken. We have to pay attention to the branch to next
case, as it's still a taken branch.

We don't need to care about the cases using goto_tb, as we have disabled
them in the previous patch.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Aurelien Jarno 2015-06-13 00:45:57 +02:00 • committed by Alexander Graf
parent 777c98c32c
commit 2c2275eb41
3 changed files with 51 additions and 0 deletions
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11
target-s390x/misc_helper.c
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@ -608,4 +608,15 @@ void HELPER(per_check_exception)(CPUS390XState *env)
cpu_loop_exit(cs);
}
}
void HELPER(per_branch)(CPUS390XState *env, uint64_t from, uint64_t to)
{
if ((env->cregs[9] & PER_CR9_EVENT_BRANCH)) {
if (!(env->cregs[9] & PER_CR9_CONTROL_BRANCH_ADDRESS)
|| get_per_in_range(env, to)) {
env->per_address = from;
env->per_perc_atmid = PER_CODE_EVENT_BRANCH | get_per_atmid(env);
}
}
}
#endif