[Qemu-devel] [PATCH 0/5] s390: Support for Hotplug of Standby Memory

[Matthew Rosato <mjrosato@linux.vnet.ibm.com>]

This patchset adds support in s390 for a pool of standby memory,
which can be set online/offline by the guest (ie, via chmem).
A new option, "standby-mem={size}", is added to the QEMU
command line machine parameter to specify the size of standby
memory for the guest.  As part of this work, additional
results are provided for the Read SCP Information SCLP, and new
implentation is added for the Read Storage Element Information,
Attach Storage Element, Assign Storage and Unassign Storage SCLPs,
which enables the s390 guest to manipulate the standby memory
pool.

This patchset is based on work originally done by Jeng-Fang (Nick)
Wang.

Matthew Rosato (5):
  Add the standby-mem machine option
  virtio-ccw: Include standby memory when calculating storage increment
  target-s390: Check for standby memory specification
  sclp-s390: Define new SCLP codes and structures
  sclp-s390: Add memory hotplug SCLPs

 hw/s390x/s390-virtio-ccw.c |   30 +++++-
 hw/s390x/sclp.c            |  235 ++++++++++++++++++++++++++++++++++++++++++--
 include/hw/s390x/sclp.h    |   48 +++++++++
 qemu-options.hx            |    6 +-
 target-s390x/cpu.h         |    4 +
 target-s390x/kvm.c         |   16 +++
 vl.c                       |    6 ++
 7 files changed, 332 insertions(+), 13 deletions(-)

-- 
1.7.9.5