diff options
Diffstat (limited to 'src/cpu/base.cc')
| -rw-r--r-- | src/cpu/base.cc | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/cpu/base.cc b/src/cpu/base.cc index 202dc476a..14b5586c8 100644 --- a/src/cpu/base.cc +++ b/src/cpu/base.cc @@ -361,6 +361,10 @@ BaseCPU::switchOut() _switchedOut = true; if (profileEvent && profileEvent->scheduled()) deschedule(profileEvent); + + // Flush all TLBs in the CPU to avoid having stale translations if + // it gets switched in later. + flushTLBs(); } void @@ -482,6 +486,22 @@ BaseCPU::takeOverFrom(BaseCPU *oldCPU) getDataPort().bind(data_peer_port); } +void +BaseCPU::flushTLBs() +{ + for (ThreadID i = 0; i < threadContexts.size(); ++i) { + ThreadContext &tc(*threadContexts[i]); + CheckerCPU *checker(tc.getCheckerCpuPtr()); + + tc.getITBPtr()->flushAll(); + tc.getDTBPtr()->flushAll(); + if (checker) { + checker->getITBPtr()->flushAll(); + checker->getDTBPtr()->flushAll(); + } + } +} + BaseCPU::ProfileEvent::ProfileEvent(BaseCPU *_cpu, Tick _interval) : cpu(_cpu), interval(_interval) |