[PATCH v2 0/6] s390x: Fix intermittent errors with IPL from PCI devices on s390x

[jrossi@linux.ibm.com]

From: Jared Rossi <jrossi@linux.ibm.com>

When booting from a PCI device on s390x there may be intermittent failures
caused by mismatched byte swaps.  Refactor the byte swapping to ensure that
it is properly synchronized.

Correct how the queue notification offset is calculated so that it may be
used for multi-queue configurations in the future.

Handle some switch cases that were not caught for PCI devices.

Changes v1 -> v2:
    - Split addition of missing break into its own patch
    - Add PCI case to generic is_viritio_supported() wapper
    - Switch the order of patches formerly 3 and 4
    - Use virtio_is_supported() instead of checking cutype when writing IPLB
        location to cover both CCW and PCI virtio devices

Jared Rossi (3):
  pc-bios/s390-ccw/virtio.c: Fix missing break for PCI notifications
  pc-bios/s390-ccw: Verify virtio support when booting from virtio PCI
    device on s390x
  pc-bios/s390-ccw: write IPLB location for non-net virtio devices

Zhuoying Cai (3):
  pc-bios/s390-ccw: Refactor byte swapping
  pc-bios/s390-ccw: Add per-queue notification offset for multi-queue
    virtio configurations
  s390x: Enable boot menu for virtio pci device

 hw/s390x/ipl.c                |  1 +
 pc-bios/s390-ccw/main.c       |  5 ++-
 pc-bios/s390-ccw/virtio-pci.c | 57 ++++++++++++++++++++++++++---------
 pc-bios/s390-ccw/virtio-pci.h |  5 ++-
 pc-bios/s390-ccw/virtio.c     | 29 ++++++++++--------
 pc-bios/s390-ccw/virtio.h     |  2 ++
 6 files changed, 69 insertions(+), 30 deletions(-)

-- 
2.54.0