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core: store new affinity on successful migration

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Adjust the base-* platforms to acknowledge new thread location solely if
migration is supported and succeeded. Otherwise the wrong thread
locations are observed via the trace session and utilization time calculation
get wrong.

Issue #3842
This commit is contained in:
Alexander Boettcher
2020-09-23 07:41:39 +02:00
committed by Christian Helmuth
parent 99fa203673
commit 90bea1499e
7 changed files with 29 additions and 25 deletions
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9
repos/base-foc/src/core/platform_thread.cc
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@ -221,19 +221,16 @@ Foc_thread_state Platform_thread::state()
}
void Platform_thread::affinity(Affinity::Location location)
void Platform_thread::affinity(Affinity::Location const location)
{
_location = location;
int const cpu = location.xpos();
l4_sched_param_t params = l4_sched_param(_prio);
params.affinity = l4_sched_cpu_set(cpu, 0, 1);
l4_msgtag_t tag = l4_scheduler_run_thread(L4_BASE_SCHEDULER_CAP,
_thread.local.data()->kcap(), &params);
if (l4_error(tag))
warning("setting affinity of ", Hex(_thread.local.data()->kcap()),
" to ", cpu, " failed!");
if (!l4_error(tag))
_location = location;
}