hcall_deassign_mmiodev(9)

okay bestie, this is hcall_deassign_mmiodev(9) from the Kernel API Manual — short page, main-character hypercall energy, and all the deets are staying. 💖

🌸 NAME 🌸

hcall_deassign_mmiodev — the hypercall that does exactly what it says: De-assign a PCI device from a User VM. No cap. 🎀

✨ SYNOPSIS ✨

Here’s the signature, copied exactly because bestie we do not freestyle code:

long hcall_deassign_mmiodev (u64 vmid , u64 addr );

🦋 ARGUMENTS 🦋

• vmid — User VM ID. 💅
• addr — Service VM GPA of the struct acrn_mmiodev. Yes, that exact struct. 🫶

💜 RETURN 💜

It returns 0 on success, and <0 on failure. That’s the whole vibe check: zero is slay, negative is not. 😭

🌈 SEE ALSO 🌈

Kernel file: ./drivers/virt/acrn/hypercall.h. And here’s the whole squad — every ref, no skips:

• 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_create_vdev(9)
• hcall_destroy_vdev(9)
• hcall_assign_mmiodev(9)
• hcall_assign_pcidev(9)
• hcall_deassign_pcidev(9)
• hcall_set_ptdev_intr(9)
• hcall_reset_ptdev_intr(9)

xoxo, your Unix bestie 💖 — source/version ./drivers/virt/acrn, date October 2026, hcall_deassign_mmiodev(9) signing off. 🎀✨