STRUCT VRING_DESC(9)

💖 struct vring_desc(9) — Kernel API Manual, bestie edition 💖

okay so we're in the Kernel API Manual and this page is literally struct vring_desc(9) — the virtio ring descriptor situation. These are 16 bytes long, tiny icon behavior, and they can chain together via @next. iykyk 💅

✨ NAME ✨

struct vring_desc — Virtio ring descriptors, 16 bytes long. These can chain together via @next. No cap, that's the whole vibe. 🦋

🎀 SYNOPSIS 🎀

struct vring_desc {
    __virtio64 addr;
    __virtio32 len;
    __virtio16 flags;
    __virtio16 next;
 };

🫶 Members 🫶

okay bestie, here's the cast — every single one, no skips:

• addr — buffer address (guest-physical). literally where the buffer lives, guest-physical style ✨
• len — buffer length. the amount of buffer we're talking about, periodt.
• flags — descriptor flags. the little flag situation for this descriptor 🎀
• next — index of the next descriptor in the chain, if the VRING_DESC_F_NEXT flag is set. We chain unused descriptors via this, too. so yes, even the unused ones get chained through here — it's giving linked-list main character energy 🔥

👀 SEE ALSO 👀

• Kernel file ./include/uapi/linux/virtio_ring.h — go peek, bestie, that's the source file right there 💖

kiss kiss 💋 this page came from ./include/uapi/linux, dated October 2026, and it's the struct vring_desc(9) manual page — bye bestie, slay responsibly 🦋✨