This provides backdoor access to the device MMIOs, and every device should
have one. From the virtio 1.0 spec (CS03):
4.1.4.7.1 Device Requirements: PCI configuration access capability
The device MUST present at least one VIRTIO_PCI_CAP_PCI_CFG capability.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
#define VIRTIO_PCI_CAP_NOTIFY_CFG 2
/* ISR access */
#define VIRTIO_PCI_CAP_ISR_CFG 3
-/* Device specific confiuration */
+/* Device specific configuration */
#define VIRTIO_PCI_CAP_DEVICE_CFG 4
+/* PCI configuration access */
+#define VIRTIO_PCI_CAP_PCI_CFG 5
/* This is the PCI capability header: */
struct virtio_pci_cap {