hcall_vm_intr_monitor(9)

📦 version 7.3.1, in nixpkgs unstable

💅 hcall_vm_intr_monitor(9) 💅

okay bestie, welcome to the hcall_vm_intr_monitor page from the Kernel API Manual — yes, the manual name is literally "Kernel API Manual", and yes, this function is the whole main character of this page. buckle up 🎀

✨ NAME ✨

hcall_vm_intr_monitor — it sets up a shared page for User VM interrupt statistics, no cap 🦋

🌸 SYNOPSIS 🌸

long hcall_vm_intr_monitor (u64 vmid , u64 addr );

like, that's it. two args. one long coming back at you. iconic ✨

🫶 ARGUMENTS 🫶

  • vmid — the User VM ID, aka which VM we're talking about here 👑
  • addr — the Service VM GPA of the shared page, so this one is literally a physical-ish address on the Service VM side, okurrr 💅
ngl, keep those two straight in your head — one is which VM, the other is where the page lives — and you're golden 🧚

⭐ RETURN ⭐

  • 0 on success 🎉
  • <0 on failure 😭

periodt. that's the whole return contract, don't overthink it 💖

🌈 SEE ALSO 🌈

okay so the kernel file is ./drivers/virt/acrn/hypercall.h — that's the one you want, bestie — and here's the whole friend group of hypercalls, all of them, not skipping a single one:

like, the whole squad showed up 💀🔥 go read them too, iykyk 🦋

and that's the page, bestie!! 🎀 this little beauty lives in ./drivers/virt/acrn, it's dated October 2026, and it's brought to you by the Kernel API Manual — hcall_vm_intr_monitor(9), slay 💜🍓

📦 where this page comes from