[v1] s390x: Fix intermittent errors with IPL from PCI devices on s390x

[PATCH 0/5] s390x: Fix intermittent errors with IPL from PCI devices on s390x

jrossi@linux.ibm.com posted 5 patches 1 month ago

Diff against v2
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git fetch https://github.com/patchew-project/qemu tags/patchew/20260623002539.126124-1-jrossi@linux.ibm.com

Maintainers: Jared Rossi <jrossi@linux.ibm.com>, Zhuoying Cai <zycai@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Jason Herne <jjherne@linux.ibm.com>, Richard Henderson <richard.henderson@linaro.org>, Ilya Leoshkevich <iii@linux.ibm.com>, David Hildenbrand <david@kernel.org>, Cornelia Huck <cohuck@redhat.com>, Eric Farman <farman@linux.ibm.com>, Matthew Rosato <mjrosato@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>

There is a newer version of this series

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 |  2 +-
pc-bios/s390-ccw/virtio.c     | 27 +++++++++--------
pc-bios/s390-ccw/virtio.h     |  2 ++
6 files changed, 64 insertions(+), 30 deletions(-)

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[PATCH 0/5] s390x: Fix intermittent errors with IPL from PCI devices on s390x

Posted by jrossi@linux.ibm.com 1 month ago

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 meets the
specification and may be used for multi-queue configurations in the future.

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

Jared Rossi (1):
  pc-bios/s390-ccw: Verify virtio support when booting from PCI device
    on s390x

Joshua Daley (1):
  pc-bios/s390-ccw: write IPLB location for virtio-blk-pci IPL

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 |  2 +-
 pc-bios/s390-ccw/virtio.c     | 27 +++++++++--------
 pc-bios/s390-ccw/virtio.h     |  2 ++
 6 files changed, 64 insertions(+), 30 deletions(-)

-- 
2.54.0