diff options
| author | Andrzej Jakowski <andrzej.jakowski@linux.intel.com> | 2020-03-30 09:46:56 -0700 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2020-04-30 17:51:07 +0200 |
| commit | 6cf94132293adb5c76d336ab7ff5924afe2cb147 (patch) | |
| tree | 8529eb87880bd271e5335e7aa26bb73e32561c1a /hw/block/nvme.h | |
| parent | eb8a0cf3ba26611f3981f8f45ac6a868975a68cc (diff) | |
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>
Diffstat (limited to 'hw/block/nvme.h')
| -rw-r--r-- | hw/block/nvme.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/block/nvme.h b/hw/block/nvme.h index 557194ee19..6520a9f0be 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -83,6 +83,8 @@ typedef struct NvmeCtrl { uint64_t timestamp_set_qemu_clock_ms; /* QEMU clock time */ char *serial; + HostMemoryBackend *pmrdev; + NvmeNamespace *namespaces; NvmeSQueue **sq; NvmeCQueue **cq; |