Dear Raghu, The steps which I sent you is for dual gem5 (not for cgem5). In this scenario, two gem5s is connected through Etherlink (virtual dummy link) without switches etc. Also in this scenario both two gem5s is working in one thread (for this reason does not need synchronization). So you do not need the COSSIM and cgem5. You only need download the latest official gem5 and patch it using my previous steps to add the NIC.
COSSIM uses OMNET++ and it is much more complex as you can see in the paper. Best regards, Nikolaos Tampouratzis > 11 Μαΐ 2022, 11:02 μμ, ο χρήστης «rshank...@austin.rr.com» έγραψε: > > Nikolaos. > A related question - Are the 2 code streams of cgem5 & gem5 - kept consistent > to each other? So users can benefit from updates on either stream (I'm not > sure how that works today). If one switches to cgem5 stream do we lose > improvements happening on gem5 stream? > > Also, thanks for your research work, community share of COSSIM gem5, and > paper below (which I had a copy from before 😊) > > Raghu > > -----Original Message----- > From: rshank...@austin.rr.com <rshank...@austin.rr.com> > Sent: Wednesday, May 11, 2022 12:58 PM > To: 'The gem5 Users mailing list' <gem5-users@gem5.org> > Subject: [gem5-users] Re: IGbE / Intel 8254x - NIC support on Gem5? > > Thanks very much Nikolaos for the detailed step-by-step response. This is > highly appreciated. I'll try and get back > > Raghu > > -----Original Message----- > From: Νικόλαος Ταμπουρατζής <ntampourat...@ece.auth.gr> > Sent: Wednesday, May 11, 2022 12:10 PM > To: The gem5 Users mailing list <gem5-users@gem5.org> > Subject: [gem5-users] Re: IGbE / Intel 8254x - NIC support on Gem5? > > Dear rshankar, > > As I know, the NIC in gem5 is worked only with Full System (FS) mode in order > to load the correct drivers etc. You can add the following in order to add > the NIC in FS mode: > > https://github.com/H2020-COSSIM/cgem5/blob/main/src/dev/x86/SouthBridge.py > (see the lines with #COSSIM) > https://github.com/H2020-COSSIM/cgem5/blob/main/configs/common/FSConfig.py > (lines 636, 674-676) > > Build the gem5. > > You need download the vmlinux-5.4.49 kernel from here: > https://github.com/gem5/gem5-resources/tree/stable/src/linux-kernel > > You need download the x86-ubuntu.img image from here: > http://dist.gem5.org/dist/v21-2/images/x86/ubuntu-18-04/x86-ubuntu.img.gz > > Mount the x86-ubuntu.img and add the gem5_init.sh in /root using: > > sudo mount -o loop,offset=1048576 x86-ubuntu.img /mnt cd /mnt sudo mount > --bind /proc /mnt/proc sudo mount --bind /dev /mnt/dev sudo chroot . > cd root > nano gem5_init.sh #Add the following script: > > #!/bin/bash > > # Copyright (c) 2021 The University of Texas at Austin. > # SPDX-License-Identifier: BSD 3-Clause > > echo "Starting gem5 init... reading run script file." > if ! m5 readfile > /tmp/script; then > echo "Failed to run m5 readfile, exiting!!" > rm -f /tmp/script > if ! m5 exit; then > # Useful for booting the disk image in (e.g.,) qemu for debugging > echo "m5 exit failed, dropping to shell." > /bin/sh > fi > else > echo "Running m5 script from /tmp/script !!" > chmod 755 /tmp/script > /tmp/script > echo "Done running script, exiting." > rm -f /tmp/script > /bin/sh > #m5 exit > fi > > > > exit > # now we are back to the host system > cd > sudo umount /mnt/proc > sudo umount /mnt/dev > sudo umount /mnt > > > Now, you may use this cmd to start the FS execution: > > /home/cossim/COSSIM/cgem5/build/X86/gem5.fast --listener-mode=on > /home/cossim/COSSIM/cgem5/configs/example/fs.py > --kernel=vmlinux-5.4.49 --disk-image=x86-ubuntu.img --dual > > The 1st terminal is in 3456 port (telnet 127.0.0.1 3456) The 2nd terminal is > in 3457 port (telnet 127.0.0.1 3457) > > After boot, you need add the localhost and IP in both terminals (eg. > ifconfig lo 127.0.0.1 & ifconfig eth0 10.0.1.x), where x 2 and 3). You can > use "ping -c 1 10.0.1.x" to check the functionality. > > If you use the above steps in your work, refer to the following COSSIM paper, > please: https://dl.acm.org/doi/10.1145/3378934 > > If someone has configured the NIC with SE mode, please give us details! :) > > Best regards, > Nikolaos Tampouratzis > > > > Quoting rshank...@austin.rr.com: > >> Hello, >> >> >> >> I'd like to add a NIC to simple Gem5 model derived from two_level.py >> running in SE mode, x86 CPU. >> >> Is this supported in Gem5? >> >> >> >> Per COSSIM version of gem5 (aka cgem5) states below. I'd like to stay >> on >> Gem5 - so any guidance here is appreciated. >> >> >> >> GitHub - H2020-COSSIM/cgem5: Modified GEM5 March 2022 release >> <https://github.com/H2020-COSSIM/cgem5> >> >> >> >> In GEM5's publicly available repositories, the only network interface >> card implemented, tested and verified is the Intel 8254x based gigabit >> Ethernet adapter. It is provided as a PCI GEM5 network device using >> the e1000 Linux driver. >> >> However, the latest version of GEM5 supports this real-network device >> only on ARM-based architectures. In the scope of COSSIM, GEM5 has been >> recently modified so as to support the Intel 8254x network card for >> the x86 ISA > > > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email > to gem5-users-le...@gem5.org _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email > to gem5-users-le...@gem5.org > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-le...@gem5.org > _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email to gem5-users-le...@gem5.org
