diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/usr/targeting/attrrp.H | 44 | ||||
| -rw-r--r-- | src/include/usr/targeting/common/target.H | 2 | ||||
| -rw-r--r-- | src/include/usr/targeting/common/targetservice.H | 64 | ||||
| -rw-r--r-- | src/include/usr/targeting/common/targreasoncodes.H | 1 | ||||
| -rwxr-xr-x | src/usr/targeting/attrrp.C | 175 | ||||
| -rw-r--r-- | src/usr/targeting/common/targetservice.C | 173 | ||||
| -rw-r--r-- | src/usr/targeting/runtime/start_rt.C | 125 | ||||
| -rwxr-xr-x | src/usr/targeting/targetservicestart.C | 28 |
8 files changed, 376 insertions, 236 deletions
diff --git a/src/include/usr/targeting/attrrp.H b/src/include/usr/targeting/attrrp.H index 0c6f1aa8d..bc9425007 100644 --- a/src/include/usr/targeting/attrrp.H +++ b/src/include/usr/targeting/attrrp.H @@ -49,6 +49,10 @@ namespace TARGETING // Forward declaration of attribute section parsed information structure. struct AttrRP_Section; +// These constexprs are used by editPagePermissions function +constexpr uint32_t DEFAULT_PERMISSIONS = 0xFFFFFFFF; +constexpr uint8_t ALL_SECTION_TYPES = 0xFF; + #ifdef __HOSTBOOT_RUNTIME /** * @brief Structure used to store Node specific information @@ -264,6 +268,46 @@ class AttrRP static void init(errlHndl_t& io_taskRetErrl, bool i_isMpipl = false); #ifndef __HOSTBOOT_RUNTIME + + /** + * @brief Modifies the memory R/W permissions on VMM pages for a + * given type of AttrRP_Section. Valid types can be found + * in the generated file pnorheader.H. Valid permissions + * can be found in src/include/sys/mm.h . It was chosen to + * not use the enums to avoid needing to include the headers + * all over. + * + * @param[in] i_type The type of AttrRP_Section we want to apply the permission + * edits to. Valid options for the attrrp types are: + * SECTION_TYPE_PNOR_RO = 0x00 + * SECTION_TYPE_PNOR_RW = 0x01 + * SECTION_TYPE_HEAP_PNOR_INIT = 0x02 + * SECTION_TYPE_HEAP_ZERO_INIT = 0x03 + * SECTION_TYPE_HB_HEAP_ZERO_INIT = 0x0A + * ALL_SECTION_TYPES = 0xFF + * + * @param[in] i_permission The R/W permissions the user desires to apply to a + * given section. Note that values can be OR'ed + * together. Valid options are : + * READ_ONLY = 0x00000001 + * WRITABLE = 0x00000002 + * EXECUTABLE = 0x00000004 + * WRITE_TRACKED = 0x00000008 + * ALLOCATE_FROM_ZERO = 0x00000010 + * NO_ALLOCATE_FROM_ZERO = 0x00000020 + * NO_ACCESS = 0x00000040 + * BYPASS_HRMOR = 0x00000080 + * GUARDED = 0x00000100 + * DEFAULT_PERMISSIONS = 0xFFFFFFFF + * + * @note If the value 0xFF is passed in for i_type then all types will + * get permissions updated to i_permission. + * If the value 0xFFFF is passed in for i_permission then the sections + * will have their R/W permissions set up to the default values given + * in PNOR + */ + errlHndl_t editPagePermissions(uint8_t i_type, uint32_t i_permission); + /** * @brief Copies all present attribute sections to memory. * diff --git a/src/include/usr/targeting/common/target.H b/src/include/usr/targeting/common/target.H index ab22a62bb..f462581de 100644 --- a/src/include/usr/targeting/common/target.H +++ b/src/include/usr/targeting/common/target.H @@ -61,7 +61,6 @@ namespace ERRORLOG } namespace RT_TARG { - void adjustTargeting4Runtime(); ERRORLOG::ErrlEntry* saveRestoreAttrs(void *i_rsvdMemPtr, void *io_lidStructPtr, uint8_t i_instance); @@ -811,7 +810,6 @@ class Target friend class AttributeTank; #ifdef __HOSTBOOT_RUNTIME - friend void RT_TARG::adjustTargeting4Runtime(); friend ERRORLOG::ErrlEntry* RT_TARG::saveRestoreAttrs(void *, void *, uint8_t); diff --git a/src/include/usr/targeting/common/targetservice.H b/src/include/usr/targeting/common/targetservice.H index 860a5564b..37bf6216e 100644 --- a/src/include/usr/targeting/common/targetservice.H +++ b/src/include/usr/targeting/common/targetservice.H @@ -563,6 +563,33 @@ class TargetService void dump() const; #ifndef __HOSTBOOT_RUNTIME + + /** + * @brief This func changes the readOnly section of the targeting data + * to be writeable, allowing hostboot to update attributes that + * are read-only. After attributes are updated the user should + * toggle back to making the section readOnly + * + * This top level interface calls the lower level attribute resource + * provider interface to modify R/W permissions on the VMM pages it has + * mapped for each of the different sections of the targeting data. This + * function specifically provides a way to toggle the ability to write to + * the readOnly pages of the targeting data. + * + * @param[in] i_allowWrites If TRUE will change R/W permissions of readOnly + * targeting data to be writable + * If FALSE will change R/W permissions of readOnly + * targeting data to be readOnly + * + * @pre AttrRp must be initialized + * + * @post R/W permissions of the readOnly section of the targeting data will + * be modified depending on boolean parameter. + * + * @return Error handle holding any errors accrued during execution + */ + errlHndl_t modifyReadOnlyPagePermissions(bool i_allowWrites); + /** * @brief Updates the targeting/attribute section data with the * specified vector parameters. @@ -790,23 +817,46 @@ class TargetService AttrRP *i_attrRP, ATTRIBUTE_ID* &o_pAttrId, AbstractPointer<void>* &o_ppAttrAddr); + /** + * @brief Update the address that PEER_TARGET points to for a given target + * + * @par Detailed Description: + * The PEER_TARGET attribute is a pointer to a target's peer. The location + * of the target changes when we transition from Hostboot<->HBRT. After + * transitioning to runtime, or if we perform an MPIPL this function needs + * to be run on all targets in order to insure any target with a PEER_TARGET + * attribute gets the PEER_TARGET's pointer looked up again and set to the + * new value. + * + * @param[in] i_pTarget pointer to target to update PEER_TARGET attr for + * + * @pre TargetService must be initialized. + * + * @post If the target passed in has a PEER_TARGET , its value will be updated + * + * @return TRUE if target was updated , FALSE if PEER_TARGET was not updated + */ + bool updatePeerTarget( const Target* i_pTarget); + #ifdef __HOSTBOOT_MODULE /** - * @brief Reset all hostboot mutex attributes + * @brief Reset all hostboot mutex attributes on a given target * * @par Detailed Description: - * Iterates through all targets and check each of their attributes to - * see if they are of type hbmutex. If we find a mutex attribute we will - * run mutex_init on it to reset it. + * Take in target and check each of its attributes to see if they are + * of type hbmutex. If we find a mutex attribute we will run mutex_init + * on it to reset it. + * + * @param[in] i_pTarget pointer to target to reset mutex attrs on * * @pre TargetService must be initialized. * AttrRp must be initialized * - * @post All hb mutex attributes on all targets have been reset + * @post All hb mutex attributes on given target have been reset * - * @return void + * @return number of mutex attributes reset */ - void resetMutexAttributes(); + uint32_t resetMutexAttributes( const Target* i_pTarget); #endif private: diff --git a/src/include/usr/targeting/common/targreasoncodes.H b/src/include/usr/targeting/common/targreasoncodes.H index 411d686cb..ddff835be 100644 --- a/src/include/usr/targeting/common/targreasoncodes.H +++ b/src/include/usr/targeting/common/targreasoncodes.H @@ -50,6 +50,7 @@ enum TargetingModuleId TARG_APPLY_ATTR_OVER = 0x0A, TARG_HANDLE_ENUM_CHECK_FAILURE = 0x0B, TARG_HANDLE_RANGE_CHECK_FAILURE = 0x0C, + TARG_EDIT_PAGE_PERMISSIONS = 0x0D, }; enum TargetingReasonCode diff --git a/src/usr/targeting/attrrp.C b/src/usr/targeting/attrrp.C index defe5ceed..9ba04090a 100755 --- a/src/usr/targeting/attrrp.C +++ b/src/usr/targeting/attrrp.C @@ -101,6 +101,14 @@ namespace TARGETING break; } + // Now that the VMM blocks have been created we must set + // the appropriate R/W permissions + l_errl = this->editPagePermissions(ALL_SECTION_TYPES, DEFAULT_PERMISSIONS); + if (l_errl) + { + break; + } + // Spawn daemon thread. task_create(&AttrRP::startMsgServiceTask, this); @@ -649,69 +657,113 @@ namespace TARGETING } - errlHndl_t AttrRP::createVmmSections() + errlHndl_t AttrRP::editPagePermissions(uint8_t i_type, uint32_t i_permission) { errlHndl_t l_errl = NULL; - + int rc; + uint32_t l_perm = i_permission; do { - // Allocate message queue for VMM requests. - iv_msgQ = msg_q_create(); - - // register it so it can be discovered by istep 21 and thus allow - // secure runtime preparation of persistent r/w attributes - int rc = msg_q_register(iv_msgQ, ATTRRP_MSG_Q); - - assert(rc == 0, "Bug! Unable to register message queue"); - // Create VMM block for each section, assign permissions. for (size_t i = 0; i < iv_sectionCount; ++i) { - uint64_t l_perm = 0; - switch(iv_sections[i].type) + if(i_permission == DEFAULT_PERMISSIONS) { - case SECTION_TYPE_PNOR_RO: - l_perm = READ_ONLY; - break; - - case SECTION_TYPE_PNOR_RW: - l_perm = WRITABLE | WRITE_TRACKED; - break; + switch(iv_sections[i].type) + { + case SECTION_TYPE_PNOR_RO: + l_perm = READ_ONLY; + break; - case SECTION_TYPE_HEAP_PNOR_INIT: - l_perm = WRITABLE; - break; + case SECTION_TYPE_PNOR_RW: + l_perm = WRITABLE | WRITE_TRACKED; + break; - case SECTION_TYPE_HEAP_ZERO_INIT: - case SECTION_TYPE_HB_HEAP_ZERO_INIT: - l_perm = WRITABLE | ALLOCATE_FROM_ZERO; - break; + case SECTION_TYPE_HEAP_PNOR_INIT: + l_perm = WRITABLE; + break; - default: + case SECTION_TYPE_HEAP_ZERO_INIT: + case SECTION_TYPE_HB_HEAP_ZERO_INIT: + l_perm = WRITABLE | ALLOCATE_FROM_ZERO; + break; - /*@ - * @errortype ERRORLOG::ERRL_SEV_UNRECOVERABLE - * @moduleid TARG_CREATE_VMM_SECTIONS - * @reasoncode TARG_RC_UNHANDLED_ATTR_SEC_TYPE - * @userdata1 Section type - * - * @devdesc Found unhandled attribute section type - * @custdesc FW error, unexpected Attribute section type - */ - const bool hbSwError = true; - l_errl = new ErrlEntry(ERRL_SEV_UNRECOVERABLE, - TARG_CREATE_VMM_SECTIONS, - TARG_RC_UNHANDLED_ATTR_SEC_TYPE, - iv_sections[i].type, - 0, hbSwError); - break; + default: + + /*@ + * @errortype ERRORLOG::ERRL_SEV_UNRECOVERABLE + * @moduleid TARG_EDIT_PAGE_PERMISSIONS + * @reasoncode TARG_RC_UNHANDLED_ATTR_SEC_TYPE + * @userdata1 Section type + * + * @devdesc Found unhandled attribute section type + * @custdesc FW error, unexpected Attribute section type + */ + const bool hbSwError = true; + l_errl = new ErrlEntry(ERRL_SEV_UNRECOVERABLE, + TARG_EDIT_PAGE_PERMISSIONS, + TARG_RC_UNHANDLED_ATTR_SEC_TYPE, + iv_sections[i].type, + 0, hbSwError); + break; + } + } + if( i_type == ALL_SECTION_TYPES || i_type == iv_sections[i].type) + { + rc = mm_set_permission(reinterpret_cast<void*>( + iv_sections[i].vmmAddress), + iv_sections[i].size, + l_perm); } - if(l_errl) + if (rc) { + /*@ + * @errortype ERRORLOG::ERRL_SEV_UNRECOVERABLE + * @moduleid TARG_EDIT_PAGE_PERMISSIONS + * @reasoncode TARG_RC_MM_PERM_FAIL + * @userdata1 vAddress attempting to allocate. + * @userdata2 (kernel-rc << 32) | (Permissions) + * + * @devdesc While attempting to set permissions on + * a virtual memory block for an attribute + * section, the kernel returned an error. + * + * @custdesc Kernel failed to set permissions on + * virtual memory block + */ + const bool hbSwError = true; + l_errl = new ErrlEntry(ERRL_SEV_UNRECOVERABLE, + TARG_EDIT_PAGE_PERMISSIONS, + TARG_RC_MM_PERM_FAIL, + iv_sections[i].vmmAddress, + TWO_UINT32_TO_UINT64(rc, l_perm), + hbSwError); break; } + } + } while(0); + return l_errl; + } + errlHndl_t AttrRP::createVmmSections() + { + errlHndl_t l_errl = NULL; + + do + { + // Allocate message queue for VMM requests. + iv_msgQ = msg_q_create(); + + // register it so it can be discovered by istep 21 and thus allow + // secure runtime preparation of persistent r/w attributes + int rc = msg_q_register(iv_msgQ, ATTRRP_MSG_Q); + + assert(rc == 0, "Bug! Unable to register message queue"); + + // Create VMM block for each section, assign permissions. + for (size_t i = 0; i < iv_sectionCount; ++i) + { int rc = 0; msg_q_t l_msgQ = iv_msgQ; @@ -750,8 +802,6 @@ namespace TARGETING if(iv_sections[i].type == SECTION_TYPE_PNOR_RW) { - // TODO RTC:164480 For MPIPL we need to map the RW section - // in real memory to virtual address of the section in PNOR /* * Register this memory range to be FLUSHed during * a shutdown. @@ -760,37 +810,6 @@ namespace TARGETING reinterpret_cast<void*>(iv_sections[i].vmmAddress), iv_sections[i].size,ATTR_PRIORITY); } - - rc = mm_set_permission(reinterpret_cast<void*>( - iv_sections[i].vmmAddress), - iv_sections[i].size, - l_perm); - - if (rc) - { - /*@ - * @errortype ERRORLOG::ERRL_SEV_UNRECOVERABLE - * @moduleid TARG_CREATE_VMM_SECTIONS - * @reasoncode TARG_RC_MM_PERM_FAIL - * @userdata1 vAddress attempting to allocate. - * @userdata2 (kernel-rc << 32) | (Permissions) - * - * @devdesc While attempting to set permissions on - * a virtual memory block for an attribute - * section, the kernel returned an error. - * - * @custdesc Kernel failed to set permissions on - * virtual memory block - */ - const bool hbSwError = true; - l_errl = new ErrlEntry(ERRL_SEV_UNRECOVERABLE, - TARG_CREATE_VMM_SECTIONS, - TARG_RC_MM_PERM_FAIL, - iv_sections[i].vmmAddress, - TWO_UINT32_TO_UINT64(rc, l_perm), - hbSwError); - break; - } } // End iteration through each section if(l_errl) diff --git a/src/usr/targeting/common/targetservice.C b/src/usr/targeting/common/targetservice.C index a92423a92..709e57560 100644 --- a/src/usr/targeting/common/targetservice.C +++ b/src/usr/targeting/common/targetservice.C @@ -54,6 +54,8 @@ #include <targeting/common/utilFilter.H> #ifdef __HOSTBOOT_MODULE +// System +#include <sys/mm.h> // Generated #include <arch/pirformat.H> @@ -1703,72 +1705,143 @@ uint32_t TargetService::getTargetAttributes(Target*i_target, // Return the number of attributes for this target return i_target->iv_attrs; } + #ifdef __HOSTBOOT_MODULE -void TargetService::resetMutexAttributes() + +#ifndef __HOSTBOOT_RUNTIME +errlHndl_t TargetService::modifyReadOnlyPagePermissions(bool i_allowWrites) { - #define TARG_FN "resetMutexAttributes(...)" + #define TARG_FN "modifyReadOnlyPagePermissions(...)" + TARG_ENTER(); + errlHndl_t l_errl = NULL; TARGETING::AttrRP *l_pAttrRP = &TARG_GET_SINGLETON(TARGETING::theAttrRP); - ATTRIBUTE_ID* l_pAttrIds = nullptr; - AbstractPointer<void>* l_ppAttrAddrs = nullptr; - for( auto targ_iter = targetService().begin(); - targ_iter != targetService().end(); - targ_iter++) + if(i_allowWrites) { - uint32_t l_attrCount = 0; - Target* l_pTarget = *targ_iter; - l_attrCount = targetService().getTargetAttributes(l_pTarget, l_pAttrRP, - l_pAttrIds, l_ppAttrAddrs ); + l_errl = l_pAttrRP->editPagePermissions(SECTION_TYPE_PNOR_RO, WRITABLE); + } + else + { + l_errl = l_pAttrRP->editPagePermissions(SECTION_TYPE_PNOR_RO, READ_ONLY); + } + TARG_EXIT(); + #undef TARG_FN + return l_errl; +} +#endif + +bool TargetService::updatePeerTarget(const Target* i_pTarget) +{ + #define TARG_FN "updatePeerTarget(...)" + // Variable which holds return value + bool l_peerTargetUpdated = false; + do + { + TARGETING::Target * l_peer = static_cast<Target*>(NULL); + if(! i_pTarget->tryGetAttr<ATTR_PEER_TARGET>(l_peer)) + { + // This is a normal path, many targets do not have PEERS + TRACDCOMP(g_trac_targeting, "No PEER_TARGET found for target 0x%x", + get_huid(i_pTarget)); + // Skip the rest of the function in this case + break; + } + else + { + TRACFCOMP(g_trac_targeting, "Initial PEER_TARGET address for HUID 0x%x found to be %p", + get_huid(i_pTarget), l_peer); + } + + TARGETING::ATTR_PEER_PATH_type l_peerPath; + if(i_pTarget->tryGetAttr<ATTR_PEER_PATH>(l_peerPath)) + { + // If we find a PEER_PATH we need to next look up the PEER_TARGET with toTarget + l_peer = targetService().toTarget(l_peerPath); - // Make sure that attributes were found - if(l_attrCount == 0) + // Make sure the path resolved to a non-null target + if (l_peer != NULL) + { + l_peerTargetUpdated = i_pTarget->_trySetAttr(ATTR_PEER_TARGET, + sizeof(l_peer), + &l_peer); + TRACFCOMP(g_trac_targeting, "Updated PEER_TARGET address for HUID 0x%x found to be %p", + get_huid(i_pTarget), l_peer); + } + else + { + // This is unexpected so make the trace visible, but no need to assert + TRACFCOMP(g_trac_targeting, + "PEER_PATH did not resolve to a valid target for the entity path %s", + l_peerPath.toString()); + } + } + else { - TRACFCOMP( g_trac_targeting, - "Target 0x%X has no attributes", get_huid(l_pTarget) ); - // Continue to next target if there were no attributes - continue; + // This is unexpected so make the trace visible, but no need to assert + TRACFCOMP(g_trac_targeting, + "No PEER_PATH found for target 0x%x which does have a PEER_TARGET attribute", + get_huid(i_pTarget)); } + } while(0); + + return l_peerTargetUpdated; + #undef TARG_FN +} - for ( uint32_t l_attrIndex = 0; l_attrIndex < l_attrCount; l_attrIndex++) +uint32_t TargetService::resetMutexAttributes(const Target* i_pTarget) +{ + #define TARG_FN "resetMutexAttributes(...)" + TARGETING::AttrRP *l_pAttrRP = &TARG_GET_SINGLETON(TARGETING::theAttrRP); + ATTRIBUTE_ID* l_pAttrIds = nullptr; + AbstractPointer<void>* l_ppAttrAddrs = nullptr; + uint32_t l_numberMutexAttrsReset = 0; + uint32_t l_attrCount = 0; + l_attrCount = targetService().getTargetAttributes(const_cast<TARGETING::Target*>(i_pTarget), + l_pAttrRP, + l_pAttrIds, + l_ppAttrAddrs ); + + for ( uint32_t l_attrIndex = 0; l_attrIndex < l_attrCount; l_attrIndex++) + { + const ATTRIBUTE_ID l_attrId = l_pAttrIds[l_attrIndex]; + for( const auto mutexId : hbMutexAttrIds) { - const ATTRIBUTE_ID l_attrId = l_pAttrIds[l_attrIndex]; - for( const auto mutexId : hbMutexAttrIds) + if(l_attrId == mutexId) { - if(l_attrId == mutexId) + mutex_t* l_mutex; + if(i_pTarget->_tryGetHbMutexAttr(l_attrId, l_mutex)) { - mutex_t* l_mutex; - if(l_pTarget->_tryGetHbMutexAttr(l_attrId, l_mutex)) - { - mutex_init(l_mutex); - } - else - { - /*@ - * @errortype ERRORLOG::ERRL_SEV_PREDICTIVE - * @moduleid TARG_SVC_RESET_MUTEX - * @reasoncode TARG_SVC_MISSING_ATTR - * @userdata1 Attribute Id we attempted to read - * @userdata2 Huid of target we attempted to read - * - * @devdesc For some reason attr IDs in hbMutexAttrIds list - * are not matching the attribute IDs that target - * service is seeing. This is causing incorrect matching - * Make sure mutexattribute.H in genfiles has good values - * - * @custdesc Attempted to perform an invalid attribute look up - */ - errlHndl_t l_errl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_PREDICTIVE, - TARG_SVC_RESET_MUTEX, - TARG_SVC_MISSING_ATTR, - l_attrId, - get_huid(l_pTarget), - true); // software error - errlCommit(l_errl, TARG_COMP_ID); - } + mutex_init(l_mutex); + l_numberMutexAttrsReset++; + } + else + { + /*@ + * @errortype ERRORLOG::ERRL_SEV_PREDICTIVE + * @moduleid TARG_SVC_RESET_MUTEX + * @reasoncode TARG_SVC_MISSING_ATTR + * @userdata1 Attribute Id we attempted to read + * @userdata2 Huid of target we attempted to read + * + * @devdesc For some reason attr IDs in hbMutexAttrIds list + * are not matching the attribute IDs that target + * service is seeing. This is causing incorrect matching + * Make sure mutexattribute.H in genfiles has good values + * + * @custdesc Attempted to perform an invalid attribute look up + */ + errlHndl_t l_errl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_PREDICTIVE, + TARG_SVC_RESET_MUTEX, + TARG_SVC_MISSING_ATTR, + l_attrId, + get_huid(i_pTarget), + true); // software error + errlCommit(l_errl, TARG_COMP_ID); } } } } #undef TARG_FN + return l_numberMutexAttrsReset; } #endif diff --git a/src/usr/targeting/runtime/start_rt.C b/src/usr/targeting/runtime/start_rt.C index ea99db972..d3edf9cb3 100644 --- a/src/usr/targeting/runtime/start_rt.C +++ b/src/usr/targeting/runtime/start_rt.C @@ -33,7 +33,7 @@ using namespace TARGETING; namespace RT_TARG { - void adjustTargeting4Runtime(); + void adjustTargetingForRuntime(); static void initTargeting() __attribute__((constructor)); static void initTargeting() @@ -50,17 +50,14 @@ namespace RT_TARG TargetService& l_targetService = targetService(); l_targetService.init(Singleton<AttrRP>::instance().getNodeCount()); - // Reset hb mutex attributes in case they got stuck in a locked state - l_targetService.resetMutexAttributes(); - - adjustTargeting4Runtime(); + adjustTargetingForRuntime(); // set global that TARG is ready Util::setIsTargetingLoaded(); } // Make any adjustments needed to targeting for runtime - void adjustTargeting4Runtime() + void adjustTargetingForRuntime() { TRACDCOMP(g_trac_targeting,"adjustTargeting4Runtime"); @@ -77,109 +74,41 @@ namespace RT_TARG // 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. - // The _trySetAttr is used directly to avoid the trySetAttr template - // error check that ATTR_PEER_TARGET is only readable, not writable. - // adjustTargeting4Runtime has been included as a friend to allow - // access to the private target class methods. - size_t l_xlateCnt = 0; - uint8_t l_maxNodeId = - TARGETING::targetService().getNumInitializedNodes(); + + // 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 = targetService().begin(l_nodeId); - target != targetService().end(); - ++target) + for (TargetIterator target = l_targetService.begin(l_nodeId); + target != l_targetService.end(); + ++target) { const TARGETING::Target * l_target = *target; - TARGETING::Target * l_peer = static_cast<Target*>(NULL); - bool l_hasPeer = l_target->tryGetAttr<ATTR_PEER_TARGET>(l_peer); - if (l_hasPeer && (l_peer != nullptr)) - { - TRACDCOMP(g_trac_targeting, - "translate the peer target %p for HUID %x", - l_peer, get_huid(l_target)); + // Check if there any mutex attributes we need to reset on this target + l_numberMutexAttrsReset += l_targetService.resetMutexAttributes(l_target); - ATTR_PEER_TARGET_type l_xlated = (TARGETING::Target *) - Singleton<AttrRP>::instance(). - AttrRP::translateAddr(l_peer,l_target); - bool l_fixed = false; - l_fixed = l_target->_trySetAttr(ATTR_PEER_TARGET, - sizeof(l_xlated), - &l_xlated); - if (l_fixed) - { - TRACDCOMP(g_trac_targeting, " to=%p", l_xlated); - l_xlateCnt++; - } - // Not good if could not be fixed. But might not be - // referenced. A segment fault will occur if used. - else - { - TRACFCOMP(g_trac_targeting, - "failed to translate peer target for HUID=0x%x", - get_huid(l_target)); - } - } - else if(l_hasPeer && l_peer == nullptr) + // Check if there is any PEER_TARAGET attribute to update on this target + if(l_targetService.updatePeerTarget(l_target)) { - TRACDCOMP(g_trac_targeting, - "looking up peer path and target for HUID %x", - get_huid(l_target)); - // Create variables entity path variable to write PEER_PATH into - // as well as a Target pointer to set once we get the PEER_PATH - TARGETING::EntityPath l_peerPath; - TARGETING::Target * l_newTargPtr; - - // Look up the PEER_PATH attribute if it exists on the target - bool l_hasPeerPath = l_target->tryGetAttr<ATTR_PEER_PATH>(l_peerPath); - - //If we find a PEER_PATH we need to next look up the PEER_TARGET - if(l_hasPeerPath) - { - TRACDCOMP(g_trac_targeting, - "Found peer path for HUID %x",get_huid(l_target)); - // Look up the PEER_TARGET based on what the PEER_PATH is - l_newTargPtr = targetService().toTarget(l_peerPath); - - bool l_fixed = false; - - // If the pointer returned from toTarget isn't null then - // we will try to set PEER_TARGET with that value - if(l_newTargPtr != nullptr) - { - l_fixed = l_target->_trySetAttr(ATTR_PEER_TARGET, - sizeof(l_newTargPtr), - &l_newTargPtr); - } - - if (l_fixed) - { - TRACDCOMP(g_trac_targeting, "Peer target for HUID %x found to be %p", - get_huid(l_target), l_newTargPtr); - l_xlateCnt++; - } - // Not good if could not be fixed. But might not be - // referenced. A segment fault will occur if used. - else - { - TRACFCOMP(g_trac_targeting, - "failed to find peer target for HUID=0x%x", - get_huid(l_target)); - } - } - else - { - TRACFCOMP(g_trac_targeting, - "Failed to find peer path for HUID=0x%x", - get_huid(l_target)); - } + l_updatedCount++; } } } TRACFCOMP(g_trac_targeting, - "adjustTargeting4Runtime: %d peer target addresses " + "adjustTargetingForRuntime: %d peer target addresses " "translated on %d nodes", - l_xlateCnt, + l_updatedCount, + l_maxNodeId); + TRACFCOMP(g_trac_targeting, + "adjustTargetingForRuntime: %d mutex attributes reset " + "on %d nodes", + l_numberMutexAttrsReset, l_maxNodeId); } } diff --git a/src/usr/targeting/targetservicestart.C b/src/usr/targeting/targetservicestart.C index 00393b017..5b7e639dd 100755 --- a/src/usr/targeting/targetservicestart.C +++ b/src/usr/targeting/targetservicestart.C @@ -194,7 +194,33 @@ static void initTargeting(errlHndl_t& io_pError) //Ensure all mutex attributes are reset on MPIPL if(l_isMpipl) { - l_targetService.resetMutexAttributes(); + // updatePeerTargets will write to read-only attribute pages + // to get around vmm fails we need to allow writes to readonly + // memory for the duration of this loop + l_targetService.modifyReadOnlyPagePermissions(true); + uint32_t l_peerTargetsAdjusted = 0; + uint32_t l_numberMutexAttrsReset = 0; + for( auto targ_iter = l_targetService.begin(); + targ_iter != l_targetService.end(); + targ_iter++) + { + const Target* l_pTarget = *targ_iter; + // Check if there any mutex attributes we need to reset on this target + l_numberMutexAttrsReset += l_targetService.resetMutexAttributes(l_pTarget); + + // Update any peer target addresses if necessary + if(l_targetService.updatePeerTarget(l_pTarget)) + { + l_peerTargetsAdjusted++; + } + } + // Now that the loop is complete we can re-apply + // the read only permissions to the read only attr pages + l_targetService.modifyReadOnlyPagePermissions(false); + TARG_INF("Number of peer target addresses adjusted: %d", + l_peerTargetsAdjusted); + TARG_INF("Number of mutex attributes reset: %d", + l_numberMutexAttrsReset); } checkProcessorTargeting(l_targetService); |
