55f01e76a3
Drop the list of modern virtio devices and explain how they are calculated instead. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-Id: <20221004112100.301935-5-kraxel@redhat.com>
71 lines
2.6 KiB
Plaintext
71 lines
2.6 KiB
Plaintext
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PCI IDs for qemu
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================
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Red Hat, Inc. donates a part of its device ID range to qemu, to be used for
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virtual devices. The vendor IDs are 1af4 (formerly Qumranet ID) and 1b36.
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Contact Gerd Hoffmann <kraxel@redhat.com> to get a device ID assigned
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for your devices.
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1af4 vendor ID
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--------------
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The 1000 -> 10ff device ID range is used as follows for virtio-pci devices.
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Note that this allocation separate from the virtio device IDs, which are
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maintained as part of the virtio specification.
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1af4:1000 network device (legacy)
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1af4:1001 block device (legacy)
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1af4:1002 balloon device (legacy)
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1af4:1003 console device (legacy)
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1af4:1004 SCSI host bus adapter device (legacy)
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1af4:1005 entropy generator device (legacy)
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1af4:1009 9p filesystem device (legacy)
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1af4:1012 vsock device (bug compatibility)
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1af4:1040 Start of ID range for modern virtio devices. The PCI device
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to ID is calculated from the virtio device ID by adding the
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1af4:10ef 0x1040 offset. The virtio IDs are defined in the virtio
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specification. The Linux kernel has a header file with
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defines for all virtio IDs (linux/virtio_ids.h), qemu has a
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copy in include/standard-headers/.
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1af4:10f0 Available for experimental usage without registration. Must get
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to official ID when the code leaves the test lab (i.e. when seeking
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1af4:10ff upstream merge or shipping a distro/product) to avoid conflicts.
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1af4:1100 Used as PCI Subsystem ID for existing hardware devices emulated
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by qemu.
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1af4:1110 ivshmem device (shared memory, docs/specs/ivshmem-spec.txt)
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All other device IDs are reserved.
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1b36 vendor ID
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--------------
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The 0000 -> 00ff device ID range is used as follows for QEMU-specific
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PCI devices (other than virtio):
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1b36:0001 PCI-PCI bridge
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1b36:0002 PCI serial port (16550A) adapter (docs/specs/pci-serial.txt)
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1b36:0003 PCI Dual-port 16550A adapter (docs/specs/pci-serial.txt)
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1b36:0004 PCI Quad-port 16550A adapter (docs/specs/pci-serial.txt)
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1b36:0005 PCI test device (docs/specs/pci-testdev.txt)
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1b36:0006 PCI Rocker Ethernet switch device
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1b36:0007 PCI SD Card Host Controller Interface (SDHCI)
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1b36:0008 PCIe host bridge
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1b36:0009 PCI Expander Bridge (-device pxb)
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1b36:000a PCI-PCI bridge (multiseat)
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1b36:000b PCIe Expander Bridge (-device pxb-pcie)
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1b36:000d PCI xhci usb host adapter
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1b36:000f mdpy (mdev sample device), linux/samples/vfio-mdev/mdpy.c
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1b36:0010 PCIe NVMe device (-device nvme)
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1b36:0011 PCI PVPanic device (-device pvpanic-pci)
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1b36:0012 PCI ACPI ERST device (-device acpi-erst)
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All these devices are documented in docs/specs.
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The 0100 device ID is used for the QXL video card device.
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