When looking for the pci devices on the host machine, I have seen something like this in lspci:
....
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:01.1 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x8 Controller (rev 06)
....
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 04)
....
04:00.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 41)
and something like this in dmesg:
....
[ 0.617223] pci_bus 0000:00: root bus resource [mem 0x000e4000-0x000e7fff window]
[ 0.624701] pci_bus 0000:00: root bus resource [mem 0xbfa00000-0xfeafffff window]
[ 0.632182] pci_bus 0000:00: root bus resource [bus 00-3e]
[ 0.637685] pci 0000:00:00.0: [8086:0c00] type 00 class 0x060000
[ 0.637887] pci 0000:00:01.0: [8086:0c01] type 01 class 0x060400
[ 0.637938] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
[ 0.638163] pci 0000:00:01.0: System wakeup disabled by ACPI
[ 0.643883] pci 0000:00:01.1: [8086:0c05] type 01 class 0x060400
[ 0.643934] pci 0000:00:01.1: PME# supported from D0 D3hot D3cold
....
In lspci, the addresses seem to have 3 parts and in dmesg they seem to have 4 parts. What all can I understand by looking at it?
