[PATCH v2 0/1] Enable PMR feature from NVMe 1.4 spec to NVMe driver

[Andrzej Jakowski]

Changes since v1:
 - provided support for Bit 1 from PMRWBM register instead of Bit 0 to ensure
   improved performance in virtualized environment [1] (Stefan)

 - added check if pmr size is power of two in size (David)

 - addressed cross compilation build problems reported by CI environment

[1]: 
https://nvmexpress.org/wp-content/uploads/NVM-Express-1_4-2019.06.10-Ratified.pdf
[2]: https://lore.kernel.org/qemu-devel/address@hidden/
 
---

Persistent Memory Region (PMR) is a new optional feature provided in NVMe 1.4
specification. This patch implements initial support for it in NVMe driver.

Andrzej Jakowski (1):
  block/nvme: introduce PMR support from NVMe 1.4 spec

 hw/block/nvme.c       | 165 +++++++++++++++++++++++++++++++++++++++-
 hw/block/nvme.h       |   5 ++
 hw/block/trace-events |   5 ++
 include/block/nvme.h  | 172 ++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 346 insertions(+), 1 deletion(-)

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2.21.1