docs/specs/pci-serial.txt

   1
   2 QEMU pci serial devices
   3 =======================
   4
   5 There is one single-port variant and two muliport-variants.  Linux
   6 guests out-of-the box with all cards.  There is a Windows inf file
   7 (docs/qemupciserial.inf) to setup the single-port card in Windows
   8 guests.
   9
  10
  11 single-port card
  12 ----------------
  13
  14 Name:   pci-serial
  15 PCI ID: 1b36:0002
  16
  17 PCI Region 0:
  18    IO bar, 8 bytes long, with the 16550 uart mapped to it.
  19    Interrupt is wired to pin A.
  20
  21
  22 multiport cards
  23 ---------------
  24
  25 Name:   pci-serial-2x
  26 PCI ID: 1b36:0003
  27
  28 Name:   pci-serial-4x
  29 PCI ID: 1b36:0004
  30
  31 PCI Region 0:
  32    IO bar, with two/four 16550 uart mapped after each other.
  33    The first is at offset 0, second at offset 8, ...
  34    Interrupt is wired to pin A.