[Qemu-devel] [PATCH v5 0/5] nvdimm: hotplug support

[Xiao Guangrong <guangrong.xiao@linux.intel.com>]

Hi Michael,

This patchset can replace the patches from [PULL 36/47] to [PULL 39/47]
in your pull request:
[PULL 36/47] nvdimm acpi: prebuild nvdimm devices for available slots
[PULL 37/47] nvdimm acpi: introduce fit buffer
[PULL 38/47] nvdimm acpi: introduce _FIT
[PULL 39/47] pc: memhp: enable nvdimm device hotplug

Thanks for your patience also thank Igor and Stefan for their review.

Chanelog in v5:
   1) make definition of dsm return values be a separate patch
   2) drop stopping nvdimm hot remove in pc_dimm_unplug()
   3) drop length field in the output of Read_Fit
   4) doc fixes & improvement
   5) better naming some functions
   6) code cleanup   
   
Changelog in v4:
   1) drop fit lock and post_hotplug_cb
   2) move nvdimm hotplug code to hw/acpi/nvdimm.c
   3) introduce length field to indicate the fit size
   4) nvdimm acpi cleanup
   5) doc typo fixes

Changelog in v3:
   1) use a dedicated interrupt for nvdimm device hotplug
   2) stop nvdimm device hot unplug
   3) reserve UUID and handle for QEMU internally used QEMU
   5) redesign fit buffer to avoid OSPM reading incomplete fit info
   6) bug fixes and cleanups

Changelog in v2:
   Fixed signed integer overflow pointed out by Stefan Hajnoczi

This patchset enables nvdimm hotplug support, it is used as pc-dimm hotplug,
for example, a new nvdimm device can be plugged as follows:
object_add memory-backend-file,id=mem3,size=10G,mem-path=/home/eric/nvdimm3
device_add nvdimm,id=nvdimm3,memdev=mem3

Xiao Guangrong (5):
  nvdimm acpi: prebuild nvdimm devices for available slots
  nvdimm acpi: introduce fit buffer
  nvdimm acpi: define DSM return codes
  nvdimm acpi: introduce _FIT method
  pc: memhp: enable nvdimm device hotplug

 default-configs/mips-softmmu-common.mak |   1 +
 docs/specs/acpi_nvdimm.txt              |  66 ++++++-
 hw/acpi/ich9.c                          |   8 +-
 hw/acpi/nvdimm.c                        | 321 +++++++++++++++++++++++++++-----
 hw/acpi/piix4.c                         |   7 +-
 hw/i386/acpi-build.c                    |   9 +-
 hw/i386/pc.c                            |  10 +
 hw/mem/nvdimm.c                         |   4 -
 include/hw/acpi/acpi_dev_interface.h    |   1 +
 include/hw/mem/nvdimm.h                 |  23 ++-
 10 files changed, 390 insertions(+), 60 deletions(-)

-- 
1.8.3.1