[Qemu-devel] [PATCH v6 0/5] don't use NVDIMM for balooning

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Sorry for subject, it should be
[PATCH v6 0/5] don't use NVDIMM for balooning

On 05.02.2016 11:18, Vladimir Sementsov-Ogievskiy wrote:
> v6:
>   add stubbed pc_dimm_build_list, fix compilation for
>   !CONFIG_MEM_HOTPLUG targets - thx to Cornelia.
>
> v5: do not use qapi
>   0002-0004: new patches
>   0005: white list instead of black list
>
> v4:
>   0001: Reviewed-by: Eric Blake <eblake@redhat.com>
>   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.
>
> Vladimir Sementsov-Ogievskiy (5):
>    move get_current_ram_size to virtio-balloon.c
>    pc-dimm: rename pc_dimm_built_list()
>    pc-dimm: add pc_dimm_build_list()
>    virtio-balloon: rewrite get_current_ram_size()
>    balloon: Use only 'pc-dimm' type dimm for ballooning
>
>   hw/mem/pc-dimm.c                | 47 ++++++++++++++++-------------------------
>   hw/virtio/virtio-balloon.c      | 19 +++++++++++++++++
>   include/exec/cpu-common.h       |  1 -
>   include/hw/mem/pc-dimm.h        |  3 +++
>   stubs/Makefile.objs             |  2 +-
>   stubs/pc_dimm.c                 | 12 +++++++++++
>   stubs/qmp_pc_dimm_device_list.c | 12 -----------
>   7 files changed, 53 insertions(+), 43 deletions(-)
>   create mode 100644 stubs/pc_dimm.c
>   delete mode 100644 stubs/qmp_pc_dimm_device_list.c
>


-- 
Best regards,
Vladimir