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authorGerd Hoffmann2022-10-04 13:21:00 +0200
committerGerd Hoffmann2022-10-12 12:01:11 +0200
commit0468fe82d32e99b6d84085e76d1e946bbe1e80ac (patch)
tree214015f1a7245405ad2f03630b7392d183486071 /include
parentpci-ids: drop list of modern virtio devices (diff)
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pci-ids: document modern virtio-pci ids in pci.h too
While being at it add a #define for the magic 0x1040 number. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-Id: <20221004112100.301935-6-kraxel@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/hw/pci/pci.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 42c83cb5ed..d1ac308574 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -76,6 +76,7 @@ extern bool pci_available;
#define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
#define PCI_SUBDEVICE_ID_QEMU 0x1100
+/* legacy virtio-pci devices */
#define PCI_DEVICE_ID_VIRTIO_NET 0x1000
#define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001
#define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002
@@ -85,6 +86,15 @@ extern bool pci_available;
#define PCI_DEVICE_ID_VIRTIO_9P 0x1009
#define PCI_DEVICE_ID_VIRTIO_VSOCK 0x1012
+/*
+ * modern virtio-pci devices get their id assigned automatically,
+ * there is no need to add #defines here. It gets calculated as
+ *
+ * PCI_DEVICE_ID = PCI_DEVICE_ID_VIRTIO_10_BASE +
+ * virtio_bus_get_vdev_id(bus)
+ */
+#define PCI_DEVICE_ID_VIRTIO_10_BASE 0x1040
+
#define PCI_VENDOR_ID_REDHAT 0x1b36
#define PCI_DEVICE_ID_REDHAT_BRIDGE 0x0001
#define PCI_DEVICE_ID_REDHAT_SERIAL 0x0002