virtio-pci: introduce vp_init_simple

[seabios.git] / src / virtio-pci.c

diff --git a/src/virtio-pci.c b/src/virtio-pci.c
index db19e974a8560b5aae4b8cd8943145723aa39c3c..6a23d5d8c67fe9c2fda480536d9ec7bb16b5e88d 100644 (file)
--- a/src/virtio-pci.c
+++ b/src/virtio-pci.c
@@ -67,3 +67,14 @@ int vp_find_vq(unsigned int ioaddr, int queue_index,
 
    return num;
 }
+
+u16 vp_init_simple(u16 bdf)
+{
+    u16 ioaddr = pci_config_readl(bdf, PCI_BASE_ADDRESS_0) &
+        PCI_BASE_ADDRESS_IO_MASK;
+
+    vp_reset(ioaddr);
+    vp_set_status(ioaddr, VIRTIO_CONFIG_S_ACKNOWLEDGE |
+                  VIRTIO_CONFIG_S_DRIVER );
+    return ioaddr;
+}