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