[Qemu-devel] [PATCH 0/2] mem/nvdimm: ensure persistence of QEMU writes to real NVDIMM device

[Haozhong Zhang]

QEMU intercepts guest writes to vNVDIMM labels, and then stores them
to the backend. When the backend is a real NVDIMM device, QEMU needs
to ensure the write persistence before returning to guest, so that the
guest labels will not be lost if QEMU exits abnormally.

Haozhong Zhang (2):
  util/pmem: add function to make writes to pmem persistent
  mem/nvdimm: ensure persistence of QEMU writes to real NVDIMM device

 hw/mem/nvdimm.c     |   3 ++
 include/qemu/pmem.h |  25 ++++++++++
 util/Makefile.objs  |   1 +
 util/pmem.c         | 132 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 161 insertions(+)
 create mode 100644 include/qemu/pmem.h
 create mode 100644 util/pmem.c

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2.14.1