vhost_iotlb_add_range_ctx(9)

💖 NAME 💖

okay so bestie, this is vhost_iotlb_add_range_ctx(9) from the Kernel API Manual — manual name folded in near the top because we're cute like that. vhost_iotlb_add_range_ctx — add a new range to vhost IOTLB. That's the name, that's the mission, periodt. ✨

✨ SYNOPSIS ✨

int vhost_iotlb_add_range_ctx (struct vhost_iotlb *iotlb , u64 start ,
       u64 last , u64 addr , unsigned int perm , void *opaque );

It's giving "five args and a return int," and honestly? iconic. 💅

🎀 ARGUMENTS 🎀

• iotlb — the IOTLB, yes bestie, that's the whole description. 🫶
• start — start of the IOVA range.
• last — last of IOVA range.
• addr — the address that is mapped to start.
• perm — access permission of this range.
• opaque — the opaque pointer for the new mapping.

🦋 DESCRIPTION 🦋

So here's the vibe check: this function returns an error if last is smaller than start or memory allocation fails. That's the description, no cap. 😭

🌈 SEE ALSO 🌈

go be nosy in these, bestie:

• Kernel file ./drivers/vhost/iotlb.c
• vhost_iotlb_map_free(9)
• vhost_iotlb_del_range(9)
• vhost_iotlb_init(9)
• vhost_iotlb_alloc(9)
• vhost_iotlb_reset(9)
• vhost_iotlb_free(9)
• vhost_iotlb_itree_first(9)
• vhost_iotlb_itree_next(9)

signed off from source/version ./drivers/vhost, dated October 2026 — vhost_iotlb_add_range_ctx(9) out 💅✨