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-rw-r--r--src/include/ipxe/virtio-ring.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/include/ipxe/virtio-ring.h b/src/include/ipxe/virtio-ring.h
index c687acab7..e44d13c05 100644
--- a/src/include/ipxe/virtio-ring.h
+++ b/src/include/ipxe/virtio-ring.h
@@ -8,9 +8,17 @@
#define VIRTIO_CONFIG_S_DRIVER 2
/* Driver has used its parts of the config, and is happy */
#define VIRTIO_CONFIG_S_DRIVER_OK 4
+/* Driver has finished configuring features */
+#define VIRTIO_CONFIG_S_FEATURES_OK 8
/* We've given up on this device. */
#define VIRTIO_CONFIG_S_FAILED 0x80
+/* Virtio feature flags used to negotiate device and driver features. */
+/* Can the device handle any descriptor layout? */
+#define VIRTIO_F_ANY_LAYOUT 27
+/* v1.0 compliant. */
+#define VIRTIO_F_VERSION_1 32
+
#define MAX_QUEUE_NUM (256)
#define VRING_DESC_F_NEXT 1