Hi Antoine, We had a similar use case in our work. Our solution was to include all of the objects that we wanted to in the system and implement them so that they forward all packets in the mode that you don't care about. For us, we wanted to include an object that we didn't want to do anything during fast-forward mode, so our implementation of its port functions that handle atomic requests merely sends the packets along without doing any processing. In theory, you could do the same with timing packets if you don't want the object to be in the system during an atomic mode fast-forward but not in the system for timing mode.
I hope this helps! Best, Sam On Tue, Apr 12, 2022 at 3:43 PM Antoine Kaufmann via gem5-users < gem5-users@gem5.org> wrote: > Hi everyone, > > I have a quick conceptual question about gem5 configuration: are there > restrictions about what can be modified in an already instantiated and > initialized gem5 config, say after restoring from a checkpoint. I know > there is > some special cases such as replacing CPUs on restore. Is this something > that > gem5 supports more generally, e.g. swapping out, adding, > connecting/disconnecting, or removing SimObjects in a simulation? Or is > making > changes to the simulation structure generally a problem? > > The use-case I'm looking at is similar to the CPU swapping, but wih other > objects as well, basically boot system with a fast config, and then swap > out > other things too for more detailed versions. (setting up logical state for > the > replacement simobjects is something I have in hand, so I'm only wondering > about > whether gem5 will be unhappy if I attempt to make such structural changes > to a > simulation). > > Thanks in advance, > Antoine > > -- > Antoine Kaufmann > <antoi...@mpi-sws.org> > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-le...@gem5.org > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
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