[Qemu-devel] [PATCH 0/6] s390x: support diag288 watchdog

[Cornelia Huck]

The following series of patches enables a watchdog for s390x that is
based upon a hypercall (diagnose 0x288). The same interface is already
used for s390 LPAR, so it makes sense to provide it under qemu as well.

Patches to enable Linux guests to utilize the watchdog have made their
way upstream during the merge window for 4.1 (see commit b2527d20
"s390/watchdog: support for KVM hypervisors and delete pr_info messages").

This patchset is based on top of the s390x patchset I send out last
week (see <address@hidden>).
A branch can be found at

git://github.com/cohuck/qemu s390-next-watchdog

Feedback welcome, especially regarding interface sanity.

Mao Chuan Li (1):
  watchdog: Add new Virtual Watchdog action INJECT-NMI

Xu Wang (5):
  s390x/virtio-ccw: enable has_dynamic_sysbus
  watchdog: Add watchdog device diag288 to the sysbus
  s390/kvm: diag288 instruction interception and handling
  watchdog: Add migration support to diag288 watchdog device
  nmi: Implement inject_nmi() for non-monitor context use

 default-configs/s390x-softmmu.mak |   1 +
 hw/core/nmi.c                     |  20 +++++++
 hw/s390x/s390-virtio-ccw.c        |   1 +
 hw/watchdog/Makefile.objs         |   1 +
 hw/watchdog/watchdog.c            |  10 ++++
 hw/watchdog/wdt_diag288.c         | 122 ++++++++++++++++++++++++++++++++++++++
 include/hw/nmi.h                  |   1 +
 include/hw/watchdog/wdt_diag288.h |  36 +++++++++++
 qapi-schema.json                  |   6 +-
 qemu-options.hx                   |   6 +-
 target-s390x/cpu.h                |   1 +
 target-s390x/kvm.c                |  18 ++++++
 target-s390x/misc_helper.c        |  33 +++++++++++
 13 files changed, 253 insertions(+), 3 deletions(-)
 create mode 100644 hw/watchdog/wdt_diag288.c
 create mode 100644 include/hw/watchdog/wdt_diag288.h

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2.3.5