On 24/02/14 22:30, Matthew Rosato wrote: > This patchset adds support in s390 for a pool of standby memory, > which can be set online/offline by the guest (ie, via chmem). > New options, maxmem and slots, are added to the QEMU command line > memory parameter to specify the total amount of memory available > to the guest as well as the number of memory slots available. > 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.
Looks like Paolo will apply Igors latest patches to the numa branch, I will defer patches 3-5 until Igors patches hit qemu master. Christian > > This patchset is based on work originally done by Jeng-Fang (Nick) > Wang. > > This patchset has been built to apply on the s390-next tree at: > > git://github.com/borntraeger/qemu.git s390-next > > Changes for v2: > * Removed the patch that introduced the standby-mem operand and > instead included Igor Mammedov's patches that add the mem-opts > 'maxmem' and 'slots', with a slight modification due to the removal > of qemu_opts_create_nofail. > * Patch 3 was inserted to add a new qom object that encapsulate variables > used by s390 memory hotplug. Patches 4 and 5 adjusted to use this > object. > * Added additional code comments and other minor changes per Alexander > Graf's comments > > Igor Mammedov (2): > vl: convert -m to QemuOpts > vl.c: extend -m option to support options for memory hotplug > > 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 | 42 +++++-- > hw/s390x/sclp.c | 276 > ++++++++++++++++++++++++++++++++++++++++++-- > include/hw/s390x/sclp.h | 19 +++ > qemu-options.hx | 10 +- > target-s390x/cpu.h | 18 +++ > target-s390x/kvm.c | 5 + > vl.c | 98 ++++++++++++++-- > 7 files changed, 440 insertions(+), 28 deletions(-) >
