virtqueue_kick(9)

💅 virtqueue_kick — like, the virtqueue_kick(9) page, but make it make sense

okay bestie so this is a page from the Kernel API Manual, and it's about one tiny function that does one huge thing. it's called virtqueue_kick and honestly? she's the main character of the virtio ring. let's get into it 🎀

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✨ NAME ✨

virtqueue_kick — the little "update after add_buf" moment. yes that's literally what it says. you add a buffer, then you kick. that's the vibe. 💫

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🦋 SYNOPSIS 🦋

bool virtqueue_kick (struct virtqueue *vq );

that's it. one argument. one bool coming back at you. slay. 💅

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🌸 ARGUMENTS 🌸

• vq — the struct virtqueue. like, the actual virtqueue you're kicking. the one. the only. your girl. 👑

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💖 DESCRIPTION 💖

so here's the tea ☕ — after you've done one or more virtqueue_add_* calls, you invoke this to kick the other side. like, you've queued stuff up, now you gotta tell the other end about it. that's the whole point. that's her job. 🫶

⚠️ bestie, listen — the caller must ensure we don't call this with other virtqueue operations at the same time (except where noted). not "should try to avoid". must ensure. no cap. concurrent virtqueue ops while kicking = not the move. 😭

returns false if the kick failed, otherwise true. so basically true = we ate, false = the kick flopped. 💀

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⭐ SEE ALSO ⭐

it's giving "linked list of every virtqueue function in existence", and I'm obsessed honestly. the kernel file is ./drivers/virtio/virtio_ring.c, and here's the whole crew 👯‍♀️:

• virtqueue_add_sgs(9)
• virtqueue_add_outbuf(9)
• virtqueue_add_outbuf_premapped(9)
• virtqueue_add_inbuf(9)
• virtqueue_add_inbuf_cache_clean(9)
• virtqueue_add_inbuf_ctx(9)
• virtqueue_add_inbuf_premapped(9)
• virtqueue_dma_dev(9)
• virtqueue_kick_prepare(9)
• virtqueue_notify(9)
• virtqueue_get_buf_ctx(9)
• virtqueue_disable_cb(9)
• virtqueue_enable_cb_prepare(9)
• virtqueue_poll(9)
• virtqueue_enable_cb(9)
• virtqueue_enable_cb_delayed(9)
• virtqueue_detach_unused_buf(9)
• vring_interrupt(9)
• virtqueue_resize(9)
• virtqueue_reset(9)
• virtqueue_get_vring_size(9)
• virtqueue_map_alloc_coherent(9)
• virtqueue_map_free_coherent(9)
• virtqueue_map_page_attrs(9)
• virtqueue_unmap_page_attrs(9)
• virtqueue_map_single_attrs(9)
• virtqueue_unmap_single_attrs(9)
• virtqueue_map_mapping_error(9)
• virtqueue_map_need_sync(9)
• virtqueue_map_sync_single_range_for_cpu(9)
• virtqueue_map_sync_single_range_for_device(9)

like I said. the whole crew. every single one. iykyk 🌈

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and that's the page, bestie 🧚✨ this one came from the source path ./drivers/virtio, dated October 2026, under the banner of the Kernel API Manual and the virtqueue_kick(9) title — mwah, iconic, periodt. 💜🎀