Hi Laurent, On 3/8/21 10:24 PM, Laurent Vivier wrote: > The Quadra 800 machine is very limited to run linux, it manages > only 1 GiB of memory and only some specific interfaces. > > The Virtual M68k Machine is based on Goldfish interfaces defined by Google > for Android simulator. It uses Goldfish-rtc (timer and RTC), > Goldfish-pic (PIC) and Goldfish-tty (for serial port and early tty). > > https://android.googlesource.com/platform/external/qemu/+/master/docs/GOLDFIS= > H-VIRTUAL-HARDWARE.TXT > > The machine is created with 128 virtio-mmio busses, and they can > be used to add serial console, GPU, disk, NIC, HID, ... > > This series re-use the goldfish-rtc implemented for RISCV, and > adds the two others based on the goldfish specs, the kernel driver > and android simulator ones. > > The machine can manage up to 3.2 GiB of memory, not because of an hardware > limitation but because the kernel crashes after this value. > > Simply configure qemu with: > > .../configure --target-list=3Dm68k-softmmu > > To run the machine you need a modified kernel you can find here: > > https://github.com/vivier/linux/tree/m68k-virt > > You need to compile the kernel with: > > make virt_defconfig > make vmlinux > > The disk must be installed using the q800 machine because the debian installer > doesn't want to be used with a kernel that is not the one on the ISO. > > And then you can run the machine with something like: > > qemu-system-m68k -M virt \ > -m 3399672K \ > -chardev stdio,signal=3Doff,mux=3Don,id=3Dchar0 \ > -mon chardev=3Dchar0,mode=3Dreadline \ > -kernel vmlinux \ > -append "console=3Dhvc0 root=3D/dev/vda2" \ > -blockdev node-name=3Dsystem,driver=3Dfile,filename=3Ddebian-10.0.qcow2 \ > -blockdev node-name=3Ddrive0,driver=3Dqcow2,file=3Dsystem \ > -device virtio-blk-device,drive=3Ddrive0 \ > -serial chardev:char0 \ > -device virtio-net-device,netdev=3Dhostnet0 \ > -netdev bridge,id=3Dhostnet0,br=3Dvirbr0 \ > -device virtio-rng-device \ > -device virtio-serial-device \ > -device virtio-gpu-device \ > -device virtconsole,chardev=3Dchar0 \ > -device virtio-keyboard-device \ > -device virtio-mouse-device > > if you want to use Goldfish-tty for the console rather than virtconsole, you > can add "console=3DttyGF". > > To start the debian-installer, you can try by adding: > > -device virtio-scsi-device \ > -blockdev node-name=3Ddebian10,driver=3Dfile,filename=3Ddebian-10.0.0-m68k-= > NETINST-1.iso \ > -blockdev node-name=3Dcdrom0,driver=3Draw,file=3Ddebian10 \ > -device scsi-cd,drive=3Dcdrom0 \ > -initrd installer-m68k/20200315/images/cdrom/initrd.gz > > ISO: https://cdimage.debian.org/cdimage/ports/snapshots/2020-10-12/debian-= > 10.0.0-m68k-NETINST-1.iso > initrd: https://cdimage.debian.org/cdimage/ports/debian-installer/2020-10-12/= > m68k/debian-installer-images_20200315_m68k.tar.gz > > v6: > m68k-virt-ctrl: > Renamed to virt-ctrl to be generic > Add a simple specs document
Thanks for this document! Series LGTM. I tested doing: qemu$ docker run -it --rm -v $PWD:$PWD -w $PWD -v /tmp:/tmp -u 0 --network host registry.gitlab.com/qemu-project/qemu/qemu/debian-m68k-cross # apt-get update # apt-get install flex bison libssl-dev # git clone https://github.com/vivier/linux.git # cd linux # git checkout m68k-virt # make O=build ARCH=m68k CROSS_COMPILE=m68k-linux-gnu- virt_defconfig # make O=build ARCH=m68k CROSS_COMPILE=m68k-linux-gnu- vmlinux -j8 [ 0.000000] Linux version 5.11.0-rc5-00002-g8a00b8b1edb (root@x1w) (m68k-linux-gnu-gcc (Debian 8.3.0-2) 8.3.0, GNU ld (GNU Binutils for Debian) 2.31.1) #1 Mon Mar 8 22:27:19 UTC 2021 I also tested the Goldfish-tty: [ 1.390000] printk: console [ttyGF0] enabled [ 1.390000] printk: console [ttyGF0] enabled [ 1.390000] printk: bootconsole [early_gf_tty0] disabled [ 1.390000] printk: bootconsole [early_gf_tty0] disabled So: Tested-by: Philippe Mathieu-Daudé <f4...@amsat.org> Don't you want to share a preinstalled qcow2 image like Aurelien? https://people.debian.org/~aurel32/qemu/ Also, do you plan to add functional testing later? Regards, Phil.