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This section describes the trace sources.
An AArch64 context got an AddressSizeFault as the base address of the TTBR used is out of range. Fields:
CPAMax unsigned intPAMax unsigned intcontext_bank unsigned intstage unsigned intAn AArch64 context got an AddressSizeFault in the final block descriptor. Fields:
CPAMax unsigned intPAMax unsigned intcontext_bank unsigned intoutput_address unsigned intstage unsigned intAn AArch64 context got an AddressSizeFault as a descriptor encoded a page and the table base address described was out of range. Fields:
CPAMax unsigned intPAMax unsigned intcontext_bank unsigned intipa_address unsigned intns boolpa_address unsigned intstage unsigned intThe AArch64 block described by a descriptor is too large. Fields:
context_bank unsigned intlevel unsigned intstage unsigned intAn AArch64 context received an address which was outside of the programmed TxSZ. Fields:
context_bank unsigned intinput_address unsigned intns boolstage unsigned intAn AArch64 context got a TranslationFault as the specified starting level and TxSZ field are inconsistent. Fields:
context_bank unsigned intstage unsigned intA context fault occurred and this is the record it wishes to generate. Fields:
SMMU_CBFRSYNRAn unsigned intSMMU_CBn_FAR unsigned intSMMU_CBn_FSR unsigned intSMMU_CBn_FSYNR0 unsigned intSMMU_CBn_FSYNR1 unsigned intSMMU_CBn_IPAFAR unsigned intcontext_bank unsigned intgoing_to_be_lost boolAttempt to raise a Non-Secure global fault. Fields:
SMMU_GFAR unsigned intSMMU_GFSR unsigned intSMMU_GFSYNR0 unsigned intSMMU_GFSYNR1 unsigned intgoing_to_be_lost boolA context fault occurred and this is the record it wishes to generate. Fields:
SMMU_CBFRSYNRAn unsigned intSMMU_CBn_FAR unsigned intSMMU_CBn_FSR unsigned intSMMU_CBn_FSYNR0 unsigned intSMMU_CBn_FSYNR1 unsigned intSMMU_CBn_IPAFAR unsigned intcontext_bank unsigned intgoing_to_be_lost boolAttempt to raise a Secure global fault. Fields:
SMMU_SGFAR unsigned intSMMU_SGFSR unsigned intSMMU_SGFSYNR0 unsigned intSMMU_SGFSYNR1 unsigned intgoing_to_be_lost boolA context bank Address Translation Status Register read occurred (Writes are reported through ats_cb_operation_doesnt_exist_trace). Fields:
ACTIVE boolcontext_id unsigned intis_debug boolAn attempt was made to use a Context Bank Address Translation Operation that didn't exist for some reason. Fields:
context_id unsigned intdesc stringA new Context Bank Address Translation Operation was queued. Fields:
VA unsigned intats_is_privileged boolats_is_read boolcontext_id unsigned intis_debug boolAnother Context Bank Address Translation operation was received whilst one was currently in progress. This is UNPREDICTABLE. Fields:
context_id unsigned intdesc stringA Global Address Translation Status Register read occurred (Writes are reported through ats_cb_operation_doesnt_exist_trace). Fields:
ACTIVE boolis_debug boolwhich enumAn attempt was made to use a Context Bank Address Translation Operation that didn't exist for some reason. Fields:
desc stringis_non_secure enumA new Context Bank Address Translation Operation was queued. Fields:
VA unsigned intats_is_privileged boolats_is_read boolcontext_id unsigned intis_debug boolis_non_secure enumis_s12 boolAnother Global Address Translation operation was received whilst one was currently in progress. This is UNPREDICTABLE. Fields:
context_id unsigned intdesc stringis_non_secure enumA queued address translation operation has started. Fields:
VA unsigned intcontext_bank unsigned intis_debug boolis_privileged boolis_read boolis_s12 boolwhich enumThe cfg_cttw signal level that indicates that the SoC support coherent page walks. Fields:
value boolConfiguration Fault Interrupt. Fields:
asserted boolis_non_secure boolThe PAGESIZE has been told to change. Fields:
is_64KiB boolThe specified bank has changed its security state. Fields:
context_bank unsigned intnow_is_non_secure boolprev_is_non_secure boolA Cache Maintenance Operation (CMO) generated a permission fault. Fields:
abort_returned_to_device boolcmo enumcontext_id unsigned intinput_address unsigned intThe cache maintenance operation permission model is being applied. Fields:
aarch64 boolfault_action enumincoming_cmo_operation enuminstruction booloutgoing_cmo_operation enumprivileged boolstage1_perms enumstage2_perms enumCombined interrupt signal. This is the OR of all of the non-secure interrupt signals. Fields:
asserted boolis_non_secure boolThis occurs when a configuration transaction attempts to access a stream mapping register group that doesn't exist and if the implementation treats this as a Configuration Access Fault. Fields:
address unsigned intgroup_number unsigned intis_non_secure boolis_read boolThese messages are verbose commentary about what the context bank is doing. Fields:
output stringThis is the transformation applied by the stage 1 SMMU_CBn_SCTLR. Fields:
SMMU_CBn_SCTLR unsigned intcontext_id unsigned inttrans_id unsigned intThis is the transformation applied by the stage 2 SMMU_CBn_SCTLR. Fields:
SMMU_CBn_SCTLR unsigned intcontext_id unsigned inttrans_id unsigned intContext Interrupt, this can only ever be non-secure. Fields:
asserted boolThis is the textual output of the debug messages of the SMMU model, this need not necessarily make much sense to the user, but is useful for sending to the model writers when reporting bugs. Fields:
output stringThe register access was denied because of some IMPLEMENTATION DEFINED reason due to the transaction attributes. Fields:
address unsigned intdesc stringThe register access was denied because SMMU_SCR1.GASRAE has locked down the register. Fields:
address unsigned intThe DVM TLB Invalidate message completed.
A DVM message for a TLB Invalidate has been received. Fields:
address unsigned intasid unsigned intby_ipa boolignored enumlast_level boolmatch_address boolmatch_asid boolmatch_vmid boolprot enumsecurity_world enumstage1_only boolvmid unsigned intIndicates a transaction unstalling. Fields:
context_id unsigned inttrans_id unsigned intunstall_state enumThese messages are about activity occurring on the SMMU that is considered an error. Fields:
output stringThe contiguous bit is inconsistent with the descriptor. Fields:
B_mask unsigned intaarch64_contig_bit_too_high boolinput_address unsigned intln2_size_in_bytes_of_region_if_contiguous unsigned intout_of_range_of_input booloutput_address unsigned intoutput_address_if_contig_bit_uses_input_address unsigned intoutput_address_inconsistent boolstage_and_level unsigned intA SMMU_CBAR has been encountered for a secure stream that is not of the Stage 1 with Stage 2 bypass form. Fields:
SMMU_CBARn unsigned intaction enumcontext_id unsigned inttrans_id unsigned intA TLB entry was attempted to be inserted into the TLB and was determined that it overlaps an existing entry. This check is not perfect but will catch simple errors. Fields:
end_address_of_new_entry unsigned intend_address_of_old_entry unsigned intindex_of_new_entry unsigned intindex_of_old_entry unsigned intstart_address_of_new_entry unsigned intstart_address_of_old_entry unsigned intThis gives the attributes that a particular stage gives prior to being applied to the incoming attributes. Fields:
inner enumns boolouter enumracfg enumshareability enumstage unsigned inttrans_id unsigned intwacfg enumGlobal Fault Interrupt. Fields:
asserted boolis_non_secure boolThere is an IMP DEF option to replay stalled transactions in affected banks. This records that the implementation has made use of this option. Fields:
context_id unsigned intwhy enumThis describes the non-architectural transformation that the implementation makes. Fields:
end_adomain enumend_inner_acache enumend_outer_acache enumis_read boolstart_adomain enumstart_inner_acache enumstart_outer_acache enumThese are information messages about what is happening in the SMMU. Fields:
output stringAn input or output address range check failed. Input address range checks are reported as TranslationFault, output ones as AddressSizeFault. Fields:
context_bank unsigned intoffending_address unsigned intwhy enumAn Access Fault occurred. Fields:
context_bank unsigned intinput_address unsigned intis_non_secure boollevel unsigned intstage unsigned intLong Descriptor AArch32 or AArch64, level 'n' descriptor fetch failed. Fields:
context_bank unsigned intipa_address unsigned intis_non_secure boollevel unsigned intpa_address unsigned intstage unsigned intLong Descriptor AArch32 or AArch64 encodes an invalid entry. Fields:
context_bank unsigned intipa_address unsigned intlevel unsigned intpa_address unsigned intssd_ns boolstage unsigned intA hypervisor input address is out of range of T0SZ. Fields:
context_bank unsigned intinput_address unsigned intis_non_secure boolA stage 2 context bank was given an address that didn't match T0SZ. Fields:
context_bank unsigned intinput_address_ipa unsigned intis_non_secure bool(SMMUv2) The stage 2 context (nested with MMU off or bypass) for a stage 1 translation had an address that was out of the allowed range. Fields:
context_bank unsigned intinput_address_ipa unsigned intis_non_secure boolLong Descriptor, last level descriptor must encode a page but didn't. Fields:
context_bank unsigned intipa_address unsigned intlevel unsigned intpa_address unsigned intssd_ns boolstage unsigned intA misprogramming occurred that the implementation faulted. Fields:
context_bank unsigned intinput_address unsigned intstage unsigned intwhy enumA stage 2 translation process for a stage 1 page walk address produce a any-device memory type. Fields:
context_bank unsigned intinput_address unsigned intlevel unsigned intA stage 2 translation process for a stage 1 page walk address produce a permission fault. Fields:
context_bank unsigned intinput_address unsigned intlevel unsigned intA stage 1 non-hyp entry failed to match TTBR0 or TTBR1. Fields:
context_bank unsigned intinput_address unsigned intis_non_secure boolA L1 or L2 short descriptor access flag has disabled access for this (super-)section/page. Fields:
context_bank unsigned intinput_address unsigned intis_non_secure boolstage unsigned intttbr_id unsigned intA non Page Table Walk access was recorded when a translated transaction went downstream, but the downstream system aborted it. This is recorded as an asynchronous fault. In the model, we can provide more information about the faulting transaction. Fields:
downstream_address unsigned intdownstream_ns enumis_read enumresult_reported_upstream enumsGFSYNR0 unsigned intsGFSYNR1 unsigned intsmmu_scr1_gefro boolsmmu_xcr0_gfre boolssd_ns enumupstream_address unsigned intupstream_ns enumThe attributes after the SMMU_S2CRn transformation has been applied. Fields:
adomain enumaprot enuminner_cache enuminner_transient boolouter_cache enumouter_transient booltrans_id unsigned intv8_dev_gathering boolv8_dev_reordering boolPage Table Walk (read). This is the physical access that the SMMU is making. Fields:
adomain enumaprot enumauser unsigned intdata unsigned inthyp boolinner_cache enuminput_address unsigned intns boolouter_cache enumpa_address unsigned intresult enumst2_st1_context_banks unsigned intstage_and_level unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor that the PTW fetched is invalid. Fields:
hyp boolinput_address unsigned intlevel unsigned intns boolpa_address unsigned intst1_context_bank unsigned intst2_context_bank unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor that the PTW fetched is a block or page and this is the decode. Fields:
AF boolAP21 enumAttrIndx210 unsigned intNS boolPXN boolSH10 enumXN boolcontiguous boolhyp boolinput_address unsigned intlevel unsigned intmair unsigned intnG boolns booloutput_address unsigned intpa_address unsigned intst1_context_bank unsigned intst2_context_bank unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor that the PTW fetched is a Table, this decodes the fields. Fields:
APTable enumNSTable boolPXNTable boolTableAddress unsigned intXNTable boolhyp boolinput_address unsigned intlevel unsigned intns boolpa_address unsigned intst1_context_bank unsigned intst2_context_bank unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor encodes a fault descriptor. Fields:
level unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor encodes a large page descriptor. Fields:
AP210 unsigned intS boolTEX210CB unsigned intXN boollarge_page_base_address unsigned intnG booltrans_id unsigned intPage Table Walk (read). The descriptor encodes a page table descriptor pointing to an L2 table. Fields:
NS boolPXN booldomain unsigned intl2_table_address unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor encodes a section descriptor. Fields:
AP210 unsigned intNS boolPXN boolS boolTEX210CB unsigned intXN booldomain unsigned intnG boolsection_base_address unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor encodes a small page descriptor. Fields:
AP210 unsigned intS boolTEX210CB unsigned intXN boolnG boolsmall_page_base_address unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor encodes a section descriptor. Fields:
AP210 unsigned intNS boolPXN boolS boolTEX210CB unsigned intXN boolnG boolsuper_section_base_address unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor that the PTW fetched is invalid. Fields:
hyp boolinput_address unsigned intlevel unsigned intns boolpa_address unsigned intst1_context_bank unsigned intst2_context_bank unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor that the PTW fetched is a block or page and this is the decode. Fields:
AF boolHAP21 enumMemAttr3_0 enumRACFG enumSH10 enumWACFG enumXN boolcontiguous boolhyp boolinput_address unsigned intlevel unsigned intns booloutput_address unsigned intpa_address unsigned intst1_context_bank unsigned intst2_context_bank unsigned inttrans_id unsigned intPage Table Walk (read). The descriptor that the PTW fetched is a Table, this decodes the fields. Fields:
APTable enumNSTable boolPXNTable boolTableAddress unsigned intXNTable boolhyp boolinput_address unsigned intlevel unsigned intns boolpa_address unsigned intst1_context_bank unsigned intst2_context_bank unsigned inttrans_id unsigned intThis represents a context's bank intent to want to change an interrupt pin. However, this doesn't take into account the accessibility of the bank, nor if other banks are driving the pin. Fields:
accessible boolasserted boolcontext_bank unsigned intinterrupt_id unsigned intA text representation of the read of a register that was disallowed. Fields:
out stringA text representation of the write of a register write that was disallowed. Fields:
in stringRead of the register file. Fields:
address unsigned intcontext_id unsigned intln2_width enumns enumregister_trans_id unsigned intresult enumvalue unsigned intA text representation of an access to a register address that is reserved. Fields:
in stringA text representation of the read of a register. Fields:
out stringWrite to the register file. Fields:
address unsigned intcontext_id unsigned intln2_width enumns enumregister_trans_id unsigned intresult enumvalue unsigned intA text representation of an access to a register address that is reserved. Fields:
in stringA text representation of the write of a register. Fields:
in stringA reset has been received by the SMMU. Fields:
asserted boolThis is a trace of transaction that are not expected to fault. This does not include those transaction that are faulting by stage 2 or where the access flag or permission model is not allowing the transaction. Fields:
context_id unsigned intinput_address unsigned intmapped_attributes unsigned intoriginal_attributes unsigned intoutput_address unsigned intssd_index unsigned intssd_ns enumstate enumstream_id unsigned inttbu unsigned inttlb_entry_index_st1 unsigned inttlb_entry_index_st2 unsigned inttrans_id unsigned inttype_of_transaction enumThis is a trace of the SMMU transaction after it has been fully remapped. Fields:
context_id unsigned intinput_address unsigned intmapped_attributes unsigned intoriginal_attributes unsigned intoutput_address unsigned intssd_index unsigned intssd_ns enumstate enumstream_id unsigned inttbu unsigned inttlb_entry_index_st1 unsigned inttlb_entry_index_st2 unsigned inttrans_id unsigned inttype_of_transaction enumThis is the initial transaction group request to remap. This represents a bundle of transactions with the same attributes but different addresses within a certain range around the address. Fields:
input_address unsigned intkind_addressed enumoriginal_attributes unsigned intssd_index unsigned intssd_ns enumstream_id unsigned inttbu unsigned inttrans_id unsigned inttype_of_transaction enumThis trace source records the state of the SMMU_gIrpt/SMMU_NSgIrpt pins. Fields:
asserted boolis_non_secure boolThis trace source records when there is at least one context bank in the specific world with an interrupt pin raised. Fields:
asserted boolns boolThis trace source records when a context bank interrupt pin changes state. Fields:
asserted boolinterrupt_pin unsigned intThis trace source records when a context bank tries to assert an interrupt. Multiple banks can drive the same pin and so long as one is driving it then it is asserted. Fields:
context_bank unsigned intinterrupt_pin unsigned intnew_count_asserting_pin unsigned intthis_context_asserting boolThis trace source records the state of the SMMU_gCfgIrpt/SMMU_NSgCfgIrpt pins. Fields:
asserted boolis_non_secure boolThis is a trace of transactions that map to stage 1 with stage 2 faulting. Fields:
context_id unsigned intinput_address unsigned intmapped_attributes unsigned intoriginal_attributes unsigned intoutput_address unsigned intssd_index unsigned intssd_ns enumstate enumstream_id unsigned inttbu unsigned inttlb_entry_index_st1 unsigned inttlb_entry_index_st2 unsigned inttrans_id unsigned inttype_of_transaction enumStream Match Register Group matched. Fields:
desc stringn unsigned inttrans_id unsigned intPage Table Walk (read). This is the start of the physical access that the SMMU is making. Fields:
adomain enumaprot enumauser unsigned inthyp boolinner_cache enuminput_address unsigned intns boolouter_cache enumpa_address unsigned intst2_st1_context_banks unsigned intstage_and_level unsigned inttrans_id unsigned intIndicating that a transaction is stalled. Fields:
context_id unsigned inthead_of_line boolreason_for_stall enumtrans_id unsigned intA commentary from the TLB about what is going on. Fields:
output stringA TLB entry has been allocated. Fields:
index unsigned intinput_end_incl_address unsigned intinput_start_address unsigned intoutput_end_incl_address unsigned intoutput_start_address unsigned intA TLB entry has been invalidated for some reason. Fields:
index unsigned intreason enumA TLB Invalidate command was executed. Fields:
address unsigned intasid unsigned intcommand enumcontext_bank unsigned intlast_level boolns boolqueue_type enumseq_id unsigned intvmid unsigned intA TLB Invalidate command was queued (but not synced). Fields:
address unsigned intasid unsigned intcommand enumcontext_bank unsigned intlast_level boolns boolqueue_type enumseq_id unsigned intvmid unsigned intA TLB Sync command was issued. Fields:
context_bank unsigned intns boolqueue_type enumThe Stage 1 context bank is marked as Stage 1 + Stage 2 by SMMU_CBARn.TYPE; however, the Stage 2 context bank marked by SMMU_CBARn.CBNDX is not marked in it's SMMU_CBARm.TYPE as a Stage 2 context. Fields:
st1_context_bank_id unsigned intst2_context_bank_id unsigned intA PTW was in progress and was restarted (for some reason), but this time it asked for different data than last time. This means that the register file changed during the walk process and so the result of the translation for this transaction is unpredictable as to whether it would have seen the first or second walk data. Fields:
first_address unsigned intfirst_ns boolsecond_address unsigned intsecond_ns booltrans_id unsigned intA L1 or L2 short descriptor access flag has disabled access for this (super-)section/page. Fields:
context_bank unsigned intinput_address unsigned intis_non_secure boollevel unsigned intV7 Short Descriptor, level 'n' descriptor is marked as faulting. Fields:
context_bank unsigned intinput_address unsigned intis_non_secure boollevel unsigned intV7 Short Descriptor, level 'n' descriptor fetch failed. Fields:
context_bank unsigned intipa_address unsigned intis_non_secure boollevel unsigned intpa_address unsigned intV7 Short Descriptor, walk process is disabled so producing a fault. Fields:
context_bank unsigned intThese messages are about unusual (but not necessarily incorrect) activity occurring on the SMMU. Fields:
output stringThe programming model expects for the user to clear the fault in the FSR before calling SMMU_CBn_RESUME to unstall a transaction. Fields:
context_id unsigned intfault_flags_of_fsr unsigned intA transaction was encountered that multiple matched the stream id registers. Fields:
action enumtrans_id unsigned intA write occurred that tried to set bits in a register, that for one reason or another, failed to get written. Fields:
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