Hello, We are a team working on gem5 RISCV. We are trying to use gem5 full-system but we are encountering some issues when mounting the rootfs/initramfs.
This is our setup: - gem5 on branch develop from https://gem5.googlesource.com/public/gem5 (c493d2c4ad) - BBL on branche master from https://github.com/riscv/riscv-pk.git (e8e6b3aa) - Linux 5.10, checkout on v5.10 tag (2c85ebc57) This is what we tried so far: -Compiling BBL with and without specifying the DTS: No changes -Compiling BBL with Linux vmlinux OR Image as payload: No changes -Compiling Linux with an minimalistic initramfs which only prints a "Hello World" from the init script: No changes -Using fs_linux.py OR run_riscv.py as the entry point: No changes Here are the boot logs from different experiments, with only the last lines of the boot log to keep this mail short: ===================== This is the boot log when specifying a disk-image param, using fs_linux.py: Command: $GEM5_FAST_BIN -v \ -d $GEM5_OUTPUT \ $GEM5_HOME/configs/example/riscv/fs_linux.py \ --cpu-type=AtomicSimpleCPU \ --cpu-clock=1GHz \ -n 1 \ --disk-image=$DISK \ --kernel=<BBL> \ --mem-type=DDR4_2400_4x16 \ --mem-size=4GB \ --command-line="root=/dev/vda ro console=ttyS0" ==== m5 terminal: Terminal 0 ==== ... [ 1.123014] [drm] radeon kernel modesetting enabled. [ 1.146199] loop: module loaded [ 1.147219] virtio_blk virtio0: [vda] 6821 512-byte logical blocks (3.49 MB/3.33 MiB) [ 1.147423] vda: detected capacity change from 0 to 3492352 ===================== This is the boot log when NOT specifying a disk-image param, using fs_linux.py: Command: $GEM5_FAST_BIN -v \ -d $GEM5_OUTPUT \ $GEM5_HOME/configs/example/riscv/fs_linux.py \ --cpu-type=AtomicSimpleCPU \ --cpu-clock=1GHz \ -n 1 \ --kernel=<BBL> \ --mem-type=DDR4_2400_4x16 \ --mem-size=4GB \ --command-line="root=/dev/vda ro console=ttyS0" ==== m5 terminal: Terminal 0 ==== ... [ 1.121246] [drm] radeon kernel modesetting enabled. [ 1.144593] loop: module loaded [ 1.148461] libphy: Fixed MDIO Bus: probed [ 1.152291] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.152426] ehci-pci: EHCI PCI platform driver [ 1.152703] ehci-platform: EHCI generic platform driver [ 1.152981] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 1.153111] ohci-pci: OHCI PCI platform driver [ 1.153376] ohci-platform: OHCI generic platform driver [ 1.154497] usbcore: registered new interface driver uas [ 1.154842] usbcore: registered new interface driver usb-storage [ 1.155422] mousedev: PS/2 mouse device common for all mice [ 1.156642] usbcore: registered new interface driver usbhid [ 1.156760] usbhid: USB HID core driver [ 1.161109] NET: Registered protocol family 10 [ 1.164410] Segment Routing with IPv6 [ 1.164841] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 1.167720] NET: Registered protocol family 17 [ 1.168261] Key type dns_resolver registered [ 1.170789] Freeing unused kernel memory: 184K ===================== This is the boot log using run_riscv.py: Command: $GEM5_BIN -v \ -d $GEM5_OUTPUT \ $HOME/riscv-fs/configs-riscv-fs/run_riscv.py \ $BOOTLOADER \ $DISK \ simple \ 1 ==== m5 terminal: Terminal 0 ==== ... [ 1.040529] [drm] radeon kernel modesetting enabled. [ 1.083453] loop: module loaded [ 1.085896] virtio_blk virtio0: [vda] 1048576 512-byte logical blocks (537 MB/512 MiB) [ 1.086433] vda: detected capacity change from 0 to 536870912 [ 1.097333] libphy: Fixed MDIO Bus: probed [ 1.099885] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.100302] ehci-pci: EHCI PCI platform driver [ 1.101024] ehci-platform: EHCI generic platform driver [ 1.101590] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 1.101965] ohci-pci: OHCI PCI platform driver [ 1.102395] ohci-platform: OHCI generic platform driver [ 1.104650] usbcore: registered new interface driver uas [ 1.105608] usbcore: registered new interface driver usb-storage [ 1.106993] mousedev: PS/2 mouse device common for all mice [ 1.108385] usbcore: registered new interface driver usbhid [ 1.109064] usbhid: USB HID core driver [ 1.113051] NET: Registered protocol family 10 [ 1.118537] Segment Routing with IPv6 [ 1.119142] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 1.122581] NET: Registered protocol family 17 [ 1.123375] Key type dns_resolver registered [ 1.129869] Freeing unused kernel memory: 184K ===================== Everything works fine using QEMU, either using the full rootfs or only booting on the minimalistic initramfs: qemu-system-riscv64 -machine virt -m 512 -nographic \ -kernel <bbl.bin> \ -device loader,file=<linux 5.10 with or without initramfs>,addr=0x80200000 \ -drive file=<full rootfs>,format=raw,id=hd0 \ -device virtio-blk-device,drive=hd0 \ -netdev user,id=net0,hostfwd=tcp::2323-10.0.2.20:23,hostfwd=tcp::8080-10.0.2.20:80 \ -device virtio-net-device,netdev=net0 \ -append "root=/dev/vda ro console=ttyS0" Do you have any hint or do you spot something that is missing in our setup? I'll gladly provide more informations if needed. Thanks in advance for your answers! David TRUAN Ingénieur Ra&D Institut Reconfigurable & Embedded Digital Systems (REDS) david.tr...@heig-vd.ch Bureau A23 Haute École d'Ingénierie et de Gestion du Canton de Vaud Route de Cheseaux 1 - CP 521 - 1401 Yverdon-les-Bains _______________________________________________ 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
