vringh_init_kern(9)

🎀 vringh_init_kern(9) 🎀

okay so this is vringh_init_kern(9) from the Kernel API Manual — and yes bestie, we're initializing a vringh for a kernelspace vring. Periodt. 💅

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✨ NAME ✨

vringh_init_kern — initialize a vringh for a kernelspace vring. It's giving setup era, and we're here for it. 🦋

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🌸 SYNOPSIS 🌸

int vringh_init_kern (struct vringh *vrh , u64 features , unsigned int
       num , bool weak_barriers , struct vring_desc *desc , struct vring_avail
       *avail , struct vring_used *used );

That signature is literally the whole vibe check. 💫

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🍓 ARGUMENTS 🍓

• vrh — the vringh you're initializing, main character energy. 👑
• features — the feature bits for this ring.
• num — the number of elements.
• weak_barriers — true if we only need memory barriers, not I/O. No cap.
• desc — the userspace descriptor pointer. 🙈
• avail — the userspace avail pointer.
• used — the userspace used pointer.

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💜 DESCRIPTION 💜

Returns an error if num is invalid. That's the tea: if num doesn't pass the vibe check, you get an error. 😭

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🌈 SEE ALSO 🌈

Kernel file ./drivers/vhost/vringh.c — and the whole function squad, in order:

• vringh_kiov_advance(9)
• vringh_init_user(9)
• vringh_getdesc_user(9)
• vringh_iov_pull_user(9)
• vringh_iov_push_user(9)
• vringh_complete_user(9)
• vringh_complete_multi_user(9)
• vringh_notify_enable_user(9)
• vringh_notify_disable_user(9)
• vringh_need_notify_user(9)
• vringh_getdesc_kern(9)
• vringh_complete_kern(9)
• vringh_notify_enable_kern(9)
• vringh_notify_disable_kern(9)
• vringh_need_notify_kern(9)
• vringh_init_iotlb(9)
• vringh_init_iotlb_va(9)
• vringh_set_iotlb(9)
• vringh_getdesc_iotlb(9)
• vringh_iov_pull_iotlb(9)
• vringh_iov_push_iotlb(9)
• vringh_complete_iotlb(9)
• vringh_need_notify_iotlb(9)

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Source/version: ./drivers/vhost — date: October 2026. That's the footer, bestie; now go initialize responsibly. 🫶💖