]> Git Repo - qemu.git/commit
nvme: introduce PMR support from NVMe 1.4 spec
authorAndrzej Jakowski <[email protected]>
Mon, 30 Mar 2020 16:46:56 +0000 (09:46 -0700)
committerKevin Wolf <[email protected]>
Thu, 30 Apr 2020 15:51:07 +0000 (17:51 +0200)
commit6cf94132293adb5c76d336ab7ff5924afe2cb147
tree8529eb87880bd271e5335e7aa26bb73e32561c1a
parenteb8a0cf3ba26611f3981f8f45ac6a868975a68cc
nvme: introduce PMR support from NVMe 1.4 spec

This patch introduces support for PMR that has been defined as part of NVMe 1.4
spec. User can now specify a pmrdev option that should point to HostMemoryBackend.
pmrdev memory region will subsequently be exposed as PCI BAR 2 in emulated NVMe
device. Guest OS can perform mmio read and writes to the PMR region that will stay
persistent across system reboot.

Signed-off-by: Andrzej Jakowski <[email protected]>
Reviewed-by: Klaus Jensen <[email protected]>
Reviewed-by: Stefan Hajnoczi <[email protected]>
Message-Id: <20200330164656[email protected]>
Reviewed-by: Keith Busch <[email protected]>
Signed-off-by: Kevin Wolf <[email protected]>
hw/block/Makefile.objs
hw/block/nvme.c
hw/block/nvme.h
hw/block/trace-events
include/block/nvme.h
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