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Re: [Qemu-devel] [PATCH v4 0/3] don't use NVDIMM for balooning


From: Denis V. Lunev
Subject: Re: [Qemu-devel] [PATCH v4 0/3] don't use NVDIMM for balooning
Date: Tue, 2 Feb 2016 12:49:30 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1

On 01/28/2016 09:51 AM, Vladimir Sementsov-Ogievskiy wrote:
v4:
  0001: Reviewed-by: Eric Blake <address@hidden>
  second patch is splitted to 0002 and 0003
  0002: Add 'type' field instead of 'balloonable' to PCDIMMDeviceInfo
  0003: chec 'type' instead of 'balloonable'

v3:
     - do not use additional class variable

NVDIMM for now is planned to use as a backing store for DAX filesystem
in the guest and thus this memory is excluded from guest memory
management and LRUs.

In this case libvirt running QEMU along with configured balloon almost
immediately inflates balloon and effectively kill the guest as
qemu counts nvdimm as part of the ram.

Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Signed-off-by: Denis V. Lunev <address@hidden>
CC: Stefan Hajnoczi <address@hidden>
CC: Xiao Guangrong <address@hidden>
CC: "Michael S. Tsirkin" <address@hidden>
CC: Igor Mammedov <address@hidden>
CC: Eric Blake <address@hidden>
CC: Markus Armbruster <address@hidden>

Vladimir Sementsov-Ogievskiy (3):
   move get_current_ram_size to virtio-balloon.c
   pcdimm: add 'type' field to PCDIMMDeviceInfo
   balloon: don't use NVDIMM for ballooning

  hw/mem/pc-dimm.c                | 27 +--------------------------
  hw/virtio/virtio-balloon.c      | 29 +++++++++++++++++++++++++++++
  include/exec/cpu-common.h       |  1 -
  qapi-schema.json                |  5 ++++-
  stubs/qmp_pc_dimm_device_list.c |  5 -----
  5 files changed, 34 insertions(+), 33 deletions(-)

ping



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