virtio — archive

[PATCH] pci: switch from subsystem id to device id

From: Gerd Hoffmann
To: [email protected]
Date: Mon, 02 Jun 2014 12:43:00 -0000

Hi, > Note: issue reporter suggested 0x10XX where XX is the virtio > device ID. This would break all legacy drivers, historically > PCI Device ID is off by one: 0xFFF + Virtio Device ID. Adding 0xfff works for for net+block only. There seems to be no fixed scheme: nilsson kraxel ~/projects/qemu/include # grep VIRTIO_ID hw/virtio/*.h hw/virtio/virtio-balloon.h:#define VIRTIO_ID_BALLOON 5 hw/virtio/virtio-blk.h:#define VIRTIO_ID_BLOCK 2 hw/virtio/virtio-net.h:#define VIRTIO_ID_NET 1 hw/virtio/virtio-rng.h:#define VIRTIO_ID_RNG 4 hw/virtio/virtio-scsi.h:#define VIRTIO_ID_SCSI 8 hw/virtio/virtio-serial.h:#define VIRTIO_ID_CONSOLE 3 nilsson kraxel ~/projects/qemu/include # grep VIRTIO hw/pci/*.h hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_NET 0x1000 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_SCSI 0x1004 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_RNG 0x1005 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_9P 0x1009 cheers, Gerd