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[Qemu-ppc] [PATCH 0/2] monitor: increase the refcount of the current CPU

From: Greg Kurz
Subject: [Qemu-ppc] [PATCH 0/2] monitor: increase the refcount of the current CPU
Date: Fri, 13 Oct 2017 10:35:06 +0200
User-agent: StGit/0.17.1-46-g6855-dirty

If a CPU selected with the "cpu" command is hot-unplugged then "info cpus"
causes QEMU to exit:
(qemu) device_del cpu1
(qemu) info cpus
qemu:qemu_cpu_kick_thread: No such process

I could verify that this happens with x86 and ppc, but I guess s390x is
also impacted.

This series tries to fix the issue by using object_ref() and object_unref()
in the monitor code. For this to work on ppc, some preliminary work is
needed to let QOM handle the CPU object lifecycle.

Please comment.



Greg Kurz (2):
      spapr_cpu_core: instantiate CPUs separately
      monitor: add proper reference counting of the current CPU

 hw/ppc/spapr.c                  |   10 +++-------
 hw/ppc/spapr_cpu_core.c         |   29 +++++++++--------------------
 include/hw/ppc/spapr_cpu_core.h |    2 +-
 monitor.c                       |   12 ++++++++++++
 4 files changed, 25 insertions(+), 28 deletions(-)

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