cpus: pass CPUState to run_on_cpu helpers

cpus: pass CPUState to run_on_cpu helpers

CPUState is a fairly common pointer to pass to these helpers. This means
if you need other arguments for the async_run_on_cpu case you end up
having to do a g_malloc to stuff additional data into the routine. For
the current users this isn't a massive deal but for MTTCG this gets
cumbersome when the only other parameter is often an address.

This adds the typedef run_on_cpu_func for helper functions which has an
explicit CPUState * passed as the first parameter. All the users of
run_on_cpu and async_run_on_cpu have had their helpers updated to use
CPUState where available.

Signed-off-by: Alex Bennée <[email protected]>
[Sergey Fedorov:
 - eliminate more CPUState in user data;
 - remove unnecessary user data passing;
 - fix target-s390x/kvm.c and target-s390x/misc_helper.c]
Signed-off-by: Sergey Fedorov <[email protected]>
Acked-by: David Gibson <[email protected]> (ppc parts)
Reviewed-by: Christian Borntraeger <[email protected]> (s390 parts)
Signed-off-by: Alex Bennée <[email protected]>
Message-Id: <1470158864[email protected]>
Reviewed-by: Richard Henderson <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>