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-rw-r--r--kernel/virtio.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/virtio.h b/kernel/virtio.h
index 3d85583..96272b4 100644
--- a/kernel/virtio.h
+++ b/kernel/virtio.h
@@ -10,7 +10,7 @@
// virtio mmio control registers, mapped starting at 0x10001000.
// from qemu virtio_mmio.h
#define VIRTIO_MMIO_MAGIC_VALUE 0x000 // 0x74726976
-#define VIRTIO_MMIO_VERSION 0x004 // version; 1 is legacy
+#define VIRTIO_MMIO_VERSION 0x004 // version; should be 2
#define VIRTIO_MMIO_DEVICE_ID 0x008 // device type; 1 is net, 2 is disk
#define VIRTIO_MMIO_VENDOR_ID 0x00c // 0x554d4551
#define VIRTIO_MMIO_DEVICE_FEATURES 0x010