diff options
| author | Shannon Nelson <shannon.nelson@amd.com> | 2023-05-19 14:56:22 -0700 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-06-27 10:47:08 -0400 |
| commit | a37c0191acbd58efab4da43372585207f30e3102 (patch) | |
| tree | 9af003f9c6de7acc51e3bde0e64fa168f3d950d6 /include/linux/virtio_pci_modern.h | |
| parent | 4f0fc22534e3d81ebd470e899fed3c0dbb4aeb56 (diff) | |
virtio: allow caller to override device id in vp_modern
To add a bit of vendor flexibility with various virtio based devices,
allow the caller to check for a different device id. This adds a function
pointer field to struct virtio_pci_modern_device to specify an override
device id check. If defined by the driver, this function will be called
to check that the PCI device is the vendor's expected device, and will
return the found device id to be stored in mdev->id.device. This allows
vendors with alternative vendor device ids to use this library on their
own device BAR.
Note: A lot of the diff in this is simply indenting the existing code
into an else block.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230519215632.12343-2-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/linux/virtio_pci_modern.h')
| -rw-r--r-- | include/linux/virtio_pci_modern.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/virtio_pci_modern.h b/include/linux/virtio_pci_modern.h index c4eeb79b0139..e7b1db1dd0bb 100644 --- a/include/linux/virtio_pci_modern.h +++ b/include/linux/virtio_pci_modern.h @@ -38,6 +38,9 @@ struct virtio_pci_modern_device { int modern_bars; struct virtio_device_id id; + + /* optional check for vendor virtio device, returns dev_id or -ERRNO */ + int (*device_id_check)(struct pci_dev *pdev); }; /* |