hcall_create_vdev(9)

✨ hcall_create_vdev(9) ✨

okay bestie, welcome to section 9 of the Kernel API Manual — this one is literally called hcall_create_vdev, and it's the girl whose whole job is creating a virtual device for a User VM 🎀 no cap, that's the entire vibe.

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🌸 NAME 🌸

hcall_create_vdev — Create a virtual device for a User VM. that's it, that's the mission 💅

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🦋 SYNOPSIS 🦋

long hcall_create_vdev (u64 vmid , u64 addr );

like, copy it exactly, don't be weird about it ✨

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💖 ARGUMENTS 💖

• vmid — the User VM ID 🆔 (yes, the User one, not the Service one, iykyk)
• addr — the Service VM GPA of the struct acrn_vdev 📍 — so it's a guest physical address, in the Service VM, pointing at that struct. main character address energy fr fr

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⭐ RETURN ⭐

• 0 on success 🎉 slay
• <0 on failure 😭 not slay, but at least you know

ngl bestie, a <0 return means something went wrong — that's the whole vibe check here. no extra lore in this page, so don't go inventing any 🙈

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🌈 SEE ALSO 🌈

the kernel file is right here, bestie, go read it: ./drivers/virt/acrn/hypercall.h 📂

and the whole hypercall friend group 💜 — every single one of them, in order, no one gets left out:

• hcall_sos_remove_cpu(9)
• hcall_create_vm(9)
• hcall_start_vm(9)
• hcall_pause_vm(9)
• hcall_destroy_vm(9)
• hcall_reset_vm(9)
• hcall_set_vcpu_regs(9)
• hcall_inject_msi(9)
• hcall_vm_intr_monitor(9)
• hcall_set_irqline(9)
• hcall_set_ioreq_buffer(9)
• hcall_notify_req_finish(9)
• hcall_set_memory_regions(9)
• hcall_destroy_vdev(9)
• hcall_assign_mmiodev(9)
• hcall_deassign_mmiodev(9)
• hcall_assign_pcidev(9)
• hcall_deassign_pcidev(9)
• hcall_set_ptdev_intr(9)
• hcall_reset_ptdev_intr(9)

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and that's the page, bestie!! 🫶 this whole thing lives over in ./drivers/virt/acrn, dated October 2026, and it's hcall_create_vdev(9) — periodt 💅✨