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Re: [Qemu-devel] [PATCH v2 0/5] s390: Support for Hotplug of Standby Mem
From: |
Matthew Rosato |
Subject: |
Re: [Qemu-devel] [PATCH v2 0/5] s390: Support for Hotplug of Standby Memory |
Date: |
Mon, 10 Mar 2014 10:39:43 -0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 |
On 02/24/2014 04:30 PM, 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.
>
> 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(-)
>
Ping. Patches 3-5 in particular could still use a review.
- Re: [Qemu-devel] [PATCH v2 0/5] s390: Support for Hotplug of Standby Memory,
Matthew Rosato <=