From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53841) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WzoAR-0004Yd-Fh for qemu-devel@nongnu.org; Wed, 25 Jun 2014 10:27:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WzoAH-0007ZS-QD for qemu-devel@nongnu.org; Wed, 25 Jun 2014 10:27:19 -0400 Received: from e38.co.us.ibm.com ([32.97.110.159]:50097) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WzoAH-0007Yz-IQ for qemu-devel@nongnu.org; Wed, 25 Jun 2014 10:27:09 -0400 Received: from /spool/local by e38.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 25 Jun 2014 08:27:07 -0600 Received: from b03cxnp08027.gho.boulder.ibm.com (b03cxnp08027.gho.boulder.ibm.com [9.17.130.19]) by d03dlp01.boulder.ibm.com (Postfix) with ESMTP id 2C11E1FF0043 for ; Wed, 25 Jun 2014 08:27:05 -0600 (MDT) Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by b03cxnp08027.gho.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s5PEQ0Di57737382 for ; Wed, 25 Jun 2014 16:26:00 +0200 Received: from d03av02.boulder.ibm.com (localhost [127.0.0.1]) by d03av02.boulder.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s5PER440013104 for ; Wed, 25 Jun 2014 08:27:05 -0600 From: Matthew Rosato Date: Wed, 25 Jun 2014 10:26:57 -0400 Message-Id: <1403706420-20109-1-git-send-email-mjrosato@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH v5 0/3] s390: Support for Hotplug of Standby Memory List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: agraf@suse.de, borntraeger@de.ibm.com, aliguori@amazon.com, imammedo@redhat.com, cornelia.huck@de.ibm.com, pbonzini@redhat.com, rth@twiddle.net This patchset adds support in s390 for a pool of standby memory, which can be set online/offline by the guest (ie, via chmem). The standby pool of memory is allocated as the difference between the initial memory setting and the maxmem setting. 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. Changes for v5: * Since ACPI memory hotplug is now in, removed Igor's patches from this set. * Updated sclp.c to use object_resolve_path() instead of object_property_find(). Changes for v4: * Remove initialization code from get_sclp_memory_hotplug_dev() and place in its own function, init_sclp_memory_hotplug_dev(). * Add hit to qemu-options.hx to note the fact that the memory size specified via -m might be forced to a boundary. * Account for the legacy s390 machine, which does not support memory hotplug. * Fix a bug in sclp.c - Change memory hotplug device parent to sysbus. * Pulled latest version of Igor's patch. Matthew Rosato (3): sclp-s390: Add device to manage s390 memory hotplug virtio-ccw: Include standby memory when calculating storage increment sclp-s390: Add memory hotplug SCLPs hw/s390x/s390-virtio-ccw.c | 46 +++++-- hw/s390x/sclp.c | 289 +++++++++++++++++++++++++++++++++++++++++++- include/hw/s390x/sclp.h | 20 +++ qemu-options.hx | 3 +- target-s390x/cpu.h | 18 +++ target-s390x/kvm.c | 5 + 6 files changed, 366 insertions(+), 15 deletions(-) -- 1.7.9.5