We used to be able to boot from the virtio-s390 machine using a modified version of zipl. However, for our new virtio-ccw machine, there was not such support available.
This patch set adds a tiny but of firmware to the game, so that we get the same functionality back that we used to have on virtio-s390. It should live in the QEMU tree, so that we can easily extend it to support more fancy features, like asking the user to choose which entry to boot, or boot menus. Alex Alexander Graf (12): S390: Make IPL reset address dynamic S390: IPL: Support ELF firmware S390: IPL: Use different firmware for different machines S390: ccw firmware: Add start assembly S390: ccw firmware: Add main program S390: ccw firmware: Add sclp output S390: ccw firmware: Add virtio device drivers S390: ccw firmware: Add glue header S390: ccw firmware: Add bootmap interpreter S390: ccw firmware: Add Makefile S390: ccw firmware: Add compiled blob S390: CCW: Use new, working firmware by default .gitignore | 2 + Makefile | 1 + hw/s390x/ipl.c | 41 +++--- hw/s390x/s390-virtio-ccw.c | 2 +- hw/s390x/s390-virtio.c | 7 +- hw/s390x/s390-virtio.h | 3 +- pc-bios/s390-ccw.img | Bin 0 -> 9432 bytes pc-bios/s390-ccw/Makefile | 26 ++++ pc-bios/s390-ccw/bootmap.c | 235 ++++++++++++++++++++++++++++++ pc-bios/s390-ccw/cio.h | 322 +++++++++++++++++++++++++++++++++++++++++ pc-bios/s390-ccw/main.c | 56 +++++++ pc-bios/s390-ccw/s390-ccw.h | 131 +++++++++++++++++ pc-bios/s390-ccw/sclp-ascii.c | 81 ++++++++++ pc-bios/s390-ccw/sclp.h | 107 ++++++++++++++ pc-bios/s390-ccw/start.S | 16 ++ pc-bios/s390-ccw/virtio.c | 274 +++++++++++++++++++++++++++++++++++ pc-bios/s390-ccw/virtio.h | 158 ++++++++++++++++++++ 17 files changed, 1440 insertions(+), 22 deletions(-) create mode 100644 pc-bios/s390-ccw.img create mode 100644 pc-bios/s390-ccw/Makefile create mode 100644 pc-bios/s390-ccw/bootmap.c create mode 100644 pc-bios/s390-ccw/cio.h create mode 100644 pc-bios/s390-ccw/main.c create mode 100644 pc-bios/s390-ccw/s390-ccw.h create mode 100644 pc-bios/s390-ccw/sclp-ascii.c create mode 100644 pc-bios/s390-ccw/sclp.h create mode 100644 pc-bios/s390-ccw/start.S create mode 100644 pc-bios/s390-ccw/virtio.c create mode 100644 pc-bios/s390-ccw/virtio.h
