(MCA: here's the latest version of the q800 patchset. I've hope that I've addressed most of the comments, plus this will now boot into the Debian installer correctly when applied to git master.
Outstanding comments: 1) Should the comment blocks copied from the Linux headers be removed from patch 1? 2) Are there meaningful constants that can be defined for Q800 interrupt "controller" in patch 10? Note that I've also pushed the branch to github: https://github.com/mcayland/qemu/tree/q800-dev-part1-mca) I'm rebasing some of these patches for seven years now, too many years... if you want to test the machine, I'm sorry, it doesn't boot a MacROM, but you can boot a linux kernel from the command line. You can install your own disk using debian-installer, with: ... -M q800 \ -serial none -serial mon:stdio \ -m 1000M -drive file=m68k.qcow2,format=qcow2 \ -net nic,model=dp83932,addr=09:00:07:12:34:57 \ -append "console=ttyS0 vga=off" \ -kernel vmlinux-4.15.0-2-m68k \ -initrd initrd.gz \ -drive file=debian-9.0-m68k-NETINST-1.iso \ -drive file=m68k.qcow2,format=qcow2 \ -nographic If you use a graphic adapter instead of "-nographic", you can use "-g" to set the size of the display (I use "-g 1600x800x24"). You can get the ISO from: https://cdimage.debian.org/mirror/cdimage/ports/9.0/m68k/iso-cd/debian-9.0-m68k-NETINST-1.iso and extract the kernel and initrd.gz: guestfish --add debian-9.0-m68k-NETINST-1.iso --ro \ --mount /dev/sda:/ <<_EOF_ copy-out /install/cdrom/initrd.gz . copy-out /install/kernels/vmlinux-4.15.0-2-m68k . _EOF_ The mirror to use is: http://ftp.ports.debian.org/debian-ports/ when it fails, continue without boot loader. In the same way, you can extract the kernel and the initramfs from the qcow2 image to use it with "-kernel" and "-initrd": guestfish --add m68k.qcow2 --mount /dev/sda2:/ <<_EOF_ copy-out /boot/vmlinux-4.15.0-2-m68k . copy-out /boot/initrd.img-4.15.0-2-m68k . _EOF_ and boot with: ... -append "root=/dev/sda2 rw console=ttyS0 console=tty \ -kernel vmlinux-4.15.0-2-m68k \ -initrd initrd.img-4.15.0-2-m68k v6: Rebase onto git master (this now includes the m68k EXCP_ILLEGAL fix required for this patchset to boot) Add Hervé's R-B tags Drop ASC (Apple Sound Chip) device since the Linux driver is broken and it is not required for a successful boot Remove extra esp_raise_irq() from ESP pseudo-DMA patch (Hervé) Remove "return" from unimplemented write functions and instead add a "read only" comment (Hervé) Rename MAX_FD to SWIM_MAX_FD in SWIM floppy controller patch to prevent potential conflicts with other files (Hervé) v5: Rebase onto git master Add Philippe's R-B to patch 10 Include the command line to boot a Linux kernel under the q800 machine in the commit message for patch 11 (Philippe) Fix up comments in hw/misc/mac_via.c (Thomas) Add asserts to VIA ADB support to prevent potential buffer overflows (Thomas) Move macfb surface/resolution checks to realise and remove hw_error (Thomas) Move macfb draw_line functions inline and remove macfb-template.h (Mark) Use guest address rather than source pointer in draw_line functions - this brings macfb in line with the VGA device and can prevent a potential buffer overflow Use g_strdup_printf() for memory region names in NuBus devices instead of hardcoded length char arrays (Thomas) Move NuBus QOM types from patch 7 to patch 8 (spotted by Thomas) Move CONFIG_COLDFIRE sections together in hw/m68k/Makefile.objs (Thomas) Remove obsolete comment from q800.c in patch 11 (Thomas) v4: Drop RFC from subject prefix as this is getting close to final Rebased onto master (fixing ESP, rom_ptr() conflicts) Reworked q800.c based upon Thomas' comments about cpu_init() and qemu_check_nic_model() Address Thomas' comments on using error_report() instead of hw_error() Change the NuBus memory regions from DEVICE_NATIVE_ENDIAN to DEVICE_BIG_ENDIAN Split macfb Nubus support into separate commit Change VMSTATE_BUFFER_UNSAFE() to VMSTATE_UINT8_ARRAY() in macfb.c as suggested by David Remove dummy Apple Sound Chip migration state as pointed out by David Keep VIA ADB state and buffers in the mac_via device rather than adding to existing ADBState (this matches the pattern used in the PPC CUDA/PMU VIAs) Remove blacklisting for q800 machine from "make check" as requested by Thomas with the following fixes: - Fix incorrect MemoryRegion owner in ASC device - Add qtest_enabled() check in q800_init() to allow testing when no kernel is specified - Move some Mac VIA initialisation from init to realize Remove legacy drive properties from SWIM floppy controller and instead expose separate floppy bus and drive devices as requested by Kevin v3: fix subject prefix "C" -> "RFC" v2: remove the dp8393x fixes, because one of the patch breaks something Update "dp8393x: manage big endian bus" with idea from Thomas Mark has reworked most of the patches: - use mos6522 - some code move, renamings and cleanup Laurent Vivier (9): hw/m68k: add via support hw/m68k: implement ADB bus support for via escc: introduce a selector for the register bit hw/m68k: add macfb video card esp: add pseudo-DMA as used by Macintosh hw/m68k: add Nubus support hw/m68k: add a dummy SWIM floppy controller dp8393x: manage big endian bus hw/m68k: define Macintosh Quadra 800 Mark Cave-Ayland (1): hw/m68k: add Nubus support for macfb video card MAINTAINERS | 16 + arch_init.c | 4 + default-configs/m68k-softmmu.mak | 14 + hw/Makefile.objs | 1 + hw/block/Makefile.objs | 1 + hw/block/swim.c | 415 +++++++++++++++++ hw/char/escc.c | 30 +- hw/display/Makefile.objs | 1 + hw/display/macfb.c | 475 ++++++++++++++++++++ hw/intc/Makefile.objs | 1 + hw/intc/q800_irq.c | 73 +++ hw/m68k/Makefile.objs | 5 +- hw/m68k/bootinfo.h | 100 +++++ hw/m68k/q800.c | 345 +++++++++++++++ hw/misc/Makefile.objs | 1 + hw/misc/mac_via.c | 856 ++++++++++++++++++++++++++++++++++++ hw/net/dp8393x.c | 88 ++-- hw/nubus/Makefile.objs | 4 + hw/nubus/mac-nubus-bridge.c | 45 ++ hw/nubus/nubus-bridge.c | 34 ++ hw/nubus/nubus-bus.c | 111 +++++ hw/nubus/nubus-device.c | 215 +++++++++ hw/scsi/esp.c | 291 ++++++++++-- include/hw/block/swim.h | 76 ++++ include/hw/char/escc.h | 1 + include/hw/display/macfb.h | 64 +++ include/hw/intc/q800_irq.h | 39 ++ include/hw/misc/mac_via.h | 114 +++++ include/hw/nubus/mac-nubus-bridge.h | 24 + include/hw/nubus/nubus.h | 69 +++ include/hw/scsi/esp.h | 7 + qemu-options.hx | 2 +- vl.c | 3 +- 33 files changed, 3455 insertions(+), 70 deletions(-) create mode 100644 hw/block/swim.c create mode 100644 hw/display/macfb.c create mode 100644 hw/intc/q800_irq.c create mode 100644 hw/m68k/bootinfo.h create mode 100644 hw/m68k/q800.c create mode 100644 hw/misc/mac_via.c create mode 100644 hw/nubus/Makefile.objs create mode 100644 hw/nubus/mac-nubus-bridge.c create mode 100644 hw/nubus/nubus-bridge.c create mode 100644 hw/nubus/nubus-bus.c create mode 100644 hw/nubus/nubus-device.c create mode 100644 include/hw/block/swim.h create mode 100644 include/hw/display/macfb.h create mode 100644 include/hw/intc/q800_irq.h create mode 100644 include/hw/misc/mac_via.h create mode 100644 include/hw/nubus/mac-nubus-bridge.h create mode 100644 include/hw/nubus/nubus.h -- 2.11.0