| commit | 6cf94132293adb5c76d336ab7ff5924afe2cb147 | |
| author | Andrzej Jakowski <andrzej.jakowski@linux.intel.com> | |
| Mon, 30 Mar 2020 16:46:56 +0000 (30 09:46 -0700) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Thu, 30 Apr 2020 15:51:07 +0000 (30 17:51 +0200) | ||
| tree | 8529eb87880bd271e5335e7aa26bb73e32561c1a | treesnapshot (tar.gz zip) |
| parent | eb8a0cf3ba26611f3981f8f45ac6a868975a68cc | commitdiff |
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 <andrzej.jakowski@linux.intel.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200330164656.9348-1-andrzej.jakowski@linux.intel.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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 <andrzej.jakowski@linux.intel.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200330164656.9348-1-andrzej.jakowski@linux.intel.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>