> RTM copies the trace info from ASID 4 to the dump. If you want to look at the > raw buffers, I think you'd need to find some way to include ASID 4 > in the dump > and get to the buffers via control reg 12 and figure out how to convert the > real address to a virtual. I now remember looking at IHATTE for some reason > and that's the macro for mapping the trace entries. Most of this stuff isn't > GUPI.
RTM does not copy the trace info from ASID 4 to the dump. The SVC Dump, IEATDUMP, and SYSMDUMP programs use an internal system trace service to copy data from the trace snapshot in the TRACE address space into their own storage so that they can dump it. That processing uses virtual addresses. No conversion from real to virtual is needed. The low order part of the real address in CR12 (or a snapshot of it in a TBVT) is used to during formatting to determine the current position within the current trace buffer for each CPU. The high order part of the real address in CR12 is used only by the machine in order to determine where to put a trace entry. Jim Mulder ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
