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-rw-r--r--docs/specs/pci-ids.txt15
1 files changed, 15 insertions, 0 deletions
diff --git a/docs/specs/pci-ids.txt b/docs/specs/pci-ids.txt
index e76b196eb5..3c65e1a6ef 100644
--- a/docs/specs/pci-ids.txt
+++ b/docs/specs/pci-ids.txt
@@ -33,3 +33,18 @@ maintained as part of the virtio specification.
1af4:1110 ivshmem device (shared memory, docs/specs/ivshmem_device_spec.txt)
All other device IDs are reserved.
+
+1b36 vendor ID
+--------------
+
+The 0000 -> 00ff device ID range is used as follows for QEMU-specific
+PCI devices (other than virtio):
+
+1b36:0001 PCI-PCI bridge
+1b36:0002 PCI serial port (16550A) adapter (docs/specs/pci-serial.txt)
+1b36:0003 PCI Dual-port 16550A adapter (docs/specs/pci-serial.txt)
+1b36:0004 PCI Quad-port 16550A adapter (docs/specs/pci-serial.txt)
+
+All these devices are documented in docs/specs.
+
+The 0100 device ID is used for the QXL video card device.