$ lspci
00:00.0 PCI bridge: Synopsys, Inc. Device abcd (rev 01)
01:00.0 Non-Volatile memory controller: Device 1987:5012 (rev 01)
$ blkid
/dev/rootfs: LABEL="ROOTFS" UUID="..." TYPE="ext4"
/dev/zram1: UUID="..." TYPE="swap"
/dev/zram2: UUID="..." TYPE="swap"
/dev/zram3: UUID="..." TYPE="swap"
/dev/zram4: UUID="..." TYPE="swap"
# dmesg|grep -i nvme
[ 1.262604] nvme nvme0: pci function 0000:01:00.0
[ 1.262664] nvme 0000:01:00.0: enabling device (0000 -> 0002)
[ 1.262741] nvme nvme0: Removing after probe failure status: -19
More info you could find here.