From: Klaus Jensen <[email protected]> The emulated nvme device (hw/block/nvme.c) is currently using an internal Intel device id.
Prepare to change that by allocating a device id under the 1b36 (Red Hat, Inc.) vendor id. Signed-off-by: Klaus Jensen <[email protected]> Cc: Gerd Hoffmann <[email protected]> Acked-by: Keith Busch <[email protected]> Reviewed-by: Maxim Levitsky <[email protected]> --- MAINTAINERS | 1 + docs/specs/nvme.txt | 25 +++++++++++++++++++++++++ docs/specs/pci-ids.txt | 1 + include/hw/pci/pci.h | 1 + 4 files changed, 28 insertions(+) create mode 100644 docs/specs/nvme.txt diff --git a/MAINTAINERS b/MAINTAINERS index 5f93e8c01d34..b4bbc58b668b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1736,6 +1736,7 @@ L: [email protected] S: Supported F: hw/block/nvme* F: tests/qtest/nvme-test.c +F: docs/specs/nvme.txt megasas M: Hannes Reinecke <[email protected]> diff --git a/docs/specs/nvme.txt b/docs/specs/nvme.txt new file mode 100644 index 000000000000..b51552cb5c3f --- /dev/null +++ b/docs/specs/nvme.txt @@ -0,0 +1,25 @@ +NVM Express Controller +====================== + +The nvme device (-device nvme) emulates an NVM Express Controller. + + +Reference Specifications +------------------------ + +The device currently implements most mandatory features of NVMe v1.3d, see + + https://nvmexpress.org/resources/specifications/ + +for the specification. + + +Known issues +------------ + +* The device does not have any way of storing persistent state, so minor parts + of the implementation is in violation of the specification: + - The accounting numbers in the SMART/Health are reset across power cycles + +* Interrupt Coalescing is not supported and is disabled by default in volation + of the specification. diff --git a/docs/specs/pci-ids.txt b/docs/specs/pci-ids.txt index 4d53e5c7d9d5..abbdbca6be38 100644 --- a/docs/specs/pci-ids.txt +++ b/docs/specs/pci-ids.txt @@ -63,6 +63,7 @@ PCI devices (other than virtio): 1b36:000b PCIe Expander Bridge (-device pxb-pcie) 1b36:000d PCI xhci usb host adapter 1b36:000f mdpy (mdev sample device), linux/samples/vfio-mdev/mdpy.c +1b36:0010 PCIe NVMe device (-device nvme) All these devices are documented in docs/specs. diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index da9057b8db97..92231885bc23 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -104,6 +104,7 @@ extern bool pci_available; #define PCI_DEVICE_ID_REDHAT_XHCI 0x000d #define PCI_DEVICE_ID_REDHAT_PCIE_BRIDGE 0x000e #define PCI_DEVICE_ID_REDHAT_MDPY 0x000f +#define PCI_DEVICE_ID_REDHAT_NVME 0x0010 #define PCI_DEVICE_ID_REDHAT_QXL 0x0100 #define FMT_PCIBUS PRIx64 -- 2.26.0
