[PULL 0/9] Hyper-V Dynamic Memory Protocol driver (hv-balloon)

[Maciej S. Szmigiero]

From: "Maciej S. Szmigiero" <maciej.szmigiero@oracle.com>

The following changes since commit d762bf97931b58839316b68a570eecc6143c9e3e:

  Merge tag 'pull-target-arm-20231102' of 
https://git.linaro.org/people/pmaydell/qemu-arm into staging (2023-11-03 
10:04:12 +0800)

are available in the Git repository at:

  https://github.com/maciejsszmigiero/qemu.git tags/pull-hv-balloon-20231105

for you to fetch changes up to 2b49ecabc6bf15efa6aa05f20a7c319ff65c4e11:

  MAINTAINERS: Add an entry for Hyper-V Dynamic Memory Protocol (2023-11-03 
20:31:10 +0100)

----------------------------------------------------------------
Hyper-V Dynamic Memory protocol driver.

This driver is like virtio-balloon on steroids for Windows guests:
it allows both changing the guest memory allocation via ballooning and
inserting pieces of extra RAM into it on demand from a provided memory
backend via Windows-native Hyper-V Dynamic Memory protocol.

* Protocol definitions.

* Hyper-V DM protocol driver (hv-balloon) base (ballooning only).

* Hyper-V DM protocol driver (hv-balloon) hot-add support.

* qapi query-memory-devices support for the driver.

* qapi HV_BALLOON_STATUS_REPORT event.

* The relevant PC machine plumbing.

* New MAINTAINERS entry for the above.

----------------------------------------------------------------
David Hildenbrand (2):
      memory-device: Support empty memory devices
      memory-device: Drop size alignment check

Maciej S. Szmigiero (7):
      Add Hyper-V Dynamic Memory Protocol definitions
      Add Hyper-V Dynamic Memory Protocol driver (hv-balloon) base
      Add Hyper-V Dynamic Memory Protocol driver (hv-balloon) hot-add support
      qapi: Add query-memory-devices support to hv-balloon
      qapi: Add HV_BALLOON_STATUS_REPORT event and its QMP query command
      hw/i386/pc: Support hv-balloon
      MAINTAINERS: Add an entry for Hyper-V Dynamic Memory Protocol

 Kconfig.host                              |    3 +
 MAINTAINERS                               |    8 +
 hw/core/machine-hmp-cmds.c                |   15 +
 hw/hyperv/Kconfig                         |   10 +
 hw/hyperv/hv-balloon-internal.h           |   33 +
 hw/hyperv/hv-balloon-our_range_memslots.c |  201 ++++
 hw/hyperv/hv-balloon-our_range_memslots.h |  110 ++
 hw/hyperv/hv-balloon-page_range_tree.c    |  228 ++++
 hw/hyperv/hv-balloon-page_range_tree.h    |  118 ++
 hw/hyperv/hv-balloon.c                    | 1766 +++++++++++++++++++++++++++++
 hw/hyperv/meson.build                     |    1 +
 hw/hyperv/trace-events                    |   18 +
 hw/i386/Kconfig                           |    1 +
 hw/i386/pc.c                              |   22 +
 hw/mem/memory-device.c                    |   49 +-
 include/hw/hyperv/dynmem-proto.h          |  423 +++++++
 include/hw/hyperv/hv-balloon.h            |   18 +
 include/hw/mem/memory-device.h            |    7 +-
 meson.build                               |   28 +-
 meson_options.txt                         |    2 +
 monitor/monitor.c                         |    1 +
 qapi/machine.json                         |  101 +-
 scripts/meson-buildoptions.sh             |    3 +
 23 files changed, 3153 insertions(+), 13 deletions(-)
 create mode 100644 hw/hyperv/hv-balloon-internal.h
 create mode 100644 hw/hyperv/hv-balloon-our_range_memslots.c
 create mode 100644 hw/hyperv/hv-balloon-our_range_memslots.h
 create mode 100644 hw/hyperv/hv-balloon-page_range_tree.c
 create mode 100644 hw/hyperv/hv-balloon-page_range_tree.h
 create mode 100644 hw/hyperv/hv-balloon.c
 create mode 100644 include/hw/hyperv/dynmem-proto.h
 create mode 100644 include/hw/hyperv/hv-balloon.h