Fast Models Reference Manual - ARM Information Center

AEM ARMv7-A specifics
A.4 Trace
The AEM includes support for Model Trace Interface (MTI) trace plug-ins. This enables the
generation of trace files that track the execution of instructions, memory accesses, and other
related operations of the CPU.
For more information about this interface and the usage of trace plug-ins, see the Fast Models
Tarmac Trace User Guide.
A.4.1
TarmacTraceAEM
The AEM model includes a trace plug-in with some enhanced capabilities, in addition to those
described in the Fast Models Tarmac Trace User Guide. It is loaded when specified by a
command-line option to Model Debugger:
--trace-plugin /lib/TarmacTraceAEM.dll
Additional capabilities are enabled using the parameters listed in trace_mmu, which become
available in the trace parameters hierarchy.
trace_mmu
Lines prefixed TTW describe the data that has been read by a translation table walk.
The line specifies the address from which the descriptor is read, the data returned from that
address, and a summary of how that data is interpreted.
Lines prefixed TLB describe a translation entry that has been added to the TLB.
The line specifies whether the d-side or i-side TLB is being loaded, the size of the entry, and the
mapping from VA to PA.
ARM DUI 0423J Copyright © 2008-2011 ARM. All rights reserved. A-12
ID051811
Non-Confidential