[gem5-users] ARM KVM Switch + Restoration
Hello gem5 users, I was wondering if it is possible to start a FS ARM simulation using KVM, switch to another CPU type such as Atomic, then restore the CPU type(Atomic), and maybe even switch again to O3. I have tried to do this using the standard library but I have encountered some errors such as: build/ALL/sim/serialize.hh:379: fatal: fatal condition !paramInImpl(cp, name, param) occurred: Can't unserialize 'board.processor.start.core:_pid' I am using: platform VExpress_Gem5_V1 (since it's the only one I found to work with KVM) release ArmRelease.for_kvm() I used this for both the checkpointing and restoring simulations (I found the release worked for non KVM CPUs when not restoring). Thank you for any help! Abdal ___ gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email to gem5-users-le...@gem5.org
[gem5-users] ARM KVM
Dear gem5 community, I have installed the latest gem5 on an x86 machine. Is it possible to run ARM FS with kvm on X86 machine or the host machine must be ARM-based? I try to execute the following configuration (from this thread https://www.mail-archive.com/gem5-users@gem5.org/msg19472.html): $GEM5/build/ARM/gem5.opt $GEM5/configs/example/arm/fs_bigLITTLE.py --kernel=vmlinux.arm64 --machine-type VExpress_GEM5 --disk ubuntu-18.04-arm64-docker.img --cpu-type kvm --big-cpus 4 and I get the following error (which means that there is not the kvm option): fs_bigLITTLE.py: error: argument --cpu-type: invalid choice: 'kvm' (choose from 'atomic', 'timing', 'exynos') May you help me, please? Best regards, Nikos ___ 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
[gem5-users] ARM KVM support
Hi, The KVM support should theoretically increase the speed/performance of the emulated system. I tried to compare ARM KVM (--arm-iset=aarch64) and ARM (--arm-iset=arm). I used simple for loops (in millions) doing integer instructions. But the result of both --arm-iset=aarch64 and arm were similar with no significant performance gain. The instructions I used to emulate the full system are, build/ARM/gem5.fast configs/example/fs.py --disk-image=/home/junaid/gem5/full_system_images/disks/aarch64-ubuntu-trusty-headless.img --machine-type=VExpress_EMM64 --arm-iset=arm AND build/ARM/gem5.fast configs/example/fs.py --disk-image=/home/junaid/gem5/full_system_images/disks/aarch64-ubuntu-trusty-headless.img --machine-type=VExpress_EMM64 --arm-iset=aarch64 Is the ARM-KVM support still in process? Or did I miss something? -- Junaid Shuja WHA130039 PhD Student, FSKTM University of Malaya ___ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
Re: [gem5-users] ARM KVM support
Hi Junaid, That was a long time ago… The aarch64 KVM cpu model should be working just fine (in full-system mode). Andreas From: Junaid Shuja junaidsh...@siswa.um.edu.mymailto:junaidsh...@siswa.um.edu.my Reply-To: gem5 users mailing list gem5-users@gem5.orgmailto:gem5-users@gem5.org Date: Thursday, 18 June 2015 00:33 To: gem5-users@gem5.orgmailto:gem5-users@gem5.org gem5-users@gem5.orgmailto:gem5-users@gem5.org Subject: [gem5-users] ARM KVM support Hi, In the gem5 tutorial, it is stated that KVM ARM support is under work. http://gem5.org/dist/tutorials/hipeac2012/gem5_hipeac.pdf Can you please specify the current status of this work? -- Junaid Shuja WHA130039 PhD Student, FSKTM University of Malaya -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England Wales, Company No: 2548782 ___ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
[gem5-users] ARM KVM support
Hi, In the gem5 tutorial, it is stated that KVM ARM support is under work. http://gem5.org/dist/tutorials/hipeac2012/gem5_hipeac.pdf Can you please specify the current status of this work? -- Junaid Shuja WHA130039 PhD Student, FSKTM University of Malaya ___ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
