gitlab issue: https://gitlab.com/libvirt/libvirt/-/issues/79

The virtio-balloon device now has the ability to report free pages
back to the hypervisor for reuse by other programs.

This kernel feature allows for more stable and resource friendly systems.

This feature is available in QEMU and is enabled with free-page-reporting=on
default virt setting should be off but the user should be able to enable it.

Nico Pache (1):
  Optional free-page-reporting can be enabled/disabled for memballon
    device of model 'virtio'.

 docs/formatdomain.rst                         |  6 ++++++
 docs/schemas/domaincommon.rng                 |  5 +++++
 src/conf/domain_conf.c                        | 21 +++++++++++++++++++
 src/conf/domain_conf.h                        |  1 +
 src/qemu/qemu_capabilities.c                  |  4 +++-
 src/qemu/qemu_capabilities.h                  |  1 +
 src/qemu/qemu_command.c                       |  5 +++++
 src/qemu/qemu_validate.c                      |  7 +++++++
 .../caps_5.1.0.x86_64.xml                     |  1 +
 .../caps_5.2.0.x86_64.xml                     |  1 +
 10 files changed, 51 insertions(+), 1 deletion(-)

-- 
2.18.4