I'll answer your first question. All addresses outside of the CPU
should be physical. The TLB objects defined by the ISA do the
translation, and they're hooked in as internal components of the CPU.
We've talked a little bit about whether those should be pulled out
into the memory system, but that unfortunately introduces a lot of
complications.
Gabe
Quoting Sage <[email protected]>:
Hi, everyone,
I have two questions regarding the m5 simulator.
The first question is whether or not the address seen by a cache module
(e.g., the parameter "addr" passed to the cache function "accessBlock") is a
virtual address. If it is, when does the virtual->physical translation take
place?
The second question is that it seems to me that the two commands
"--checkpoint-restore=XXX --at-instruction --warmup-insts=250000000
--max-inst=250000000" and "--checkpoint-restore=XXX --at-instruction
--max-inst=250000000" produce the same simulation results, indicating that
"-warmup-insts=250000000" does not take effect at all. I am wondering how I
can warm up caches after recovering from a checkpoint??? However, using
"--fast-forward" instead of "--checkpoint-restore" seems to work fine, but I
'd prefer to use ""--checkpoint-restore" to save time.
Thanks in advance!
Leonard
--
Give our ability to our work, but our genius to our life!
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