From: "Dr. David Alan Gilbert" <dgilbert@xxxxxxxxxx>
Define the PCI capability used for enumerating shared memory regions.
Each capability contains a 'struct virtio_pci_cap64'
Multiple capabilities of this type may exist for a device and may
be distinguished using the 'cap.id' field.
Defined in virtio spec commit 855ad7af2bd64 ("shared memory: Define PCI capability")
Signed-off-by: Dr. David Alan Gilbert <dgilbert@xxxxxxxxxx>
---
include/uapi/linux/virtio_pci.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
index 11e508719dfd..401a5d6851f1 100644
--- a/include/uapi/linux/virtio_pci.h
+++ b/include/uapi/linux/virtio_pci.h
@@ -113,6 +113,8 @@
#define VIRTIO_PCI_CAP_DEVICE_CFG 4
/* PCI configuration access */
#define VIRTIO_PCI_CAP_PCI_CFG 5
+/* Additional shared memory capability */
+#define VIRTIO_PCI_CAP_SHARED_MEMORY_CFG 8
/* This is the PCI capability header: */
struct virtio_pci_cap {
--
2.21.0
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