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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/targeting/runtime/start_rt.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2013,2018 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#include <targeting/common/commontargeting.H>
#include <targeting/common/targetservice.H>
#include <targeting/common/associationmanager.H>
#include <targeting/attrrp.H>
#include <util/misc.H>
#include <targeting/common/trace.H>
#include <targeting/common/utilFilter.H>
using namespace TARGETING;
namespace RT_TARG
{
void adjustTargetingForRuntime();
static void initTargeting() __attribute__((constructor));
static void initTargeting()
{
errlHndl_t l_errl = NULL;
AttrRP::init(l_errl);
if (l_errl)
{
errlCommit(l_errl, TARG_COMP_ID);
assert(false);
}
TargetService& l_targetService = targetService();
size_t l_numNodes = Singleton<AttrRP>::instance().getNodeCount();
l_targetService.init(l_numNodes);
adjustTargetingForRuntime();
// set global that TARG is ready
Util::setIsTargetingLoaded();
if(l_numNodes > 1)
{
l_errl = TARGETING::AssociationManager::reconnectSyAndNodeTargets();
if(l_errl)
{
TRACFCOMP(g_trac_targeting, "initTargeting: could not"
" reconnectSyAndNodeTargets");
errlCommit(l_errl, TARG_COMP_ID);
assert(false, "Could not reconnect system and node targets");
}
}
}
// Make any adjustments needed to targeting for runtime
void adjustTargetingForRuntime()
{
TRACDCOMP(g_trac_targeting,"adjustTargeting4Runtime");
// Loop through all targets and fix those with ATTR_PEER_TARGETs.
//
// ATTR_PEER_TARGET is the only attribute using the Target_t type.
// The value of a Target_t attribute is a Target * "pointer" to
// another target. The value is set up by the targeting scripts at
// build time. Targeting uses a translate function to nagivate through
// the targeting binary. There is a runtime translation function used
// at run time to account for the location of the targeting binary
// being at a different spot at runtime. The Target_t * value of
// the attribute remains pointing into where the targeting binary
// was at IPL. Using this "old" address would seg fault at run time.
// The value of the ATTR_PEER_TARGET attributes must be translated
// for run time.
// Also in this function we will reset any mutex attributes we find
// on any target incase they got left in the locked state when hostboot
// passed the payload to the hypervisor.
TargetService& l_targetService = targetService();
size_t l_updatedCount = 0;
uint32_t l_numberMutexAttrsReset = 0;
uint8_t l_maxNodeId = l_targetService.getNumInitializedNodes();
for(uint8_t l_nodeId = NODE0; l_nodeId < l_maxNodeId; ++l_nodeId)
{
for (TargetIterator target = l_targetService.begin(l_nodeId);
target != l_targetService.end();
++target)
{
const TARGETING::Target * l_target = *target;
// Check if there any mutex attributes we need to reset on this target
l_numberMutexAttrsReset += l_targetService.resetMutexAttributes(l_target);
// Check if there is any PEER_TARAGET attribute to update on this target
if(l_targetService.updatePeerTarget(l_target))
{
l_updatedCount++;
}
}
}
TRACFCOMP(g_trac_targeting,
"adjustTargetingForRuntime: %d peer target addresses "
"translated on %d nodes",
l_updatedCount,
l_maxNodeId);
TRACFCOMP(g_trac_targeting,
"adjustTargetingForRuntime: %d mutex attributes reset "
"on %d nodes",
l_numberMutexAttrsReset,
l_maxNodeId);
}
}
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