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=======================
QEMU PCI serial devices
=======================
QEMU implements some PCI serial devices which are simple PCI
wrappers around one or more 16550 UARTs.
There is one single-port variant and two multiport-variants. Linux
guests work out-of-the box with all cards. There is a Windows inf file
(``docs/qemupciserial.inf``) to set up the cards in Windows guests.
Single-port card
----------------
Name:
``pci-serial``
PCI ID:
1b36:0002
PCI Region 0:
IO bar, 8 bytes long, with the 16550 UART mapped to it.
Interrupt:
Wired to pin A.
Multiport cards
---------------
Name:
``pci-serial-2x``, ``pci-serial-4x``
PCI ID:
1b36:0003 (``-2x``) and 1b36:0004 (``-4x``)
PCI Region 0:
IO bar, with two or four 16550 UARTs mapped after each other.
The first is at offset 0, the second at offset 8, and so on.
Interrupt:
Wired to pin A.
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