STRUCT HSM_IRQFD(9)

💖 struct hsm_irqfd(9) 💖

okay bestie, welcome to the Kernel API Manual page for struct hsm_irqfd — literally the properties of HSM irqfd. This is the struct where all the little details live together. 🫶

✨ NAME ✨

struct hsm_irqfd — properties of HSM irqfd.

🌸 SYNOPSIS 🌸

struct hsm_irqfd {
    struct acrn_vm          *vm;
    wait_queue_entry_t wait;
    struct work_struct      shutdown;
    struct eventfd_ctx      *eventfd;
    struct list_head        list;
    poll_table pt;
    struct acrn_msi_entry   msi;
    unsigned long           flags;
 };

🎀 Members 🎀

Not me listing every single member because we do not skip details in this house 💅

• vm — associated VM pointer. yup, the VM it’s associated with.
• wait — entry of wait-queue.
• shutdown — async shutdown work.
• eventfd — associated eventfd.
• list — entry within acrn_vm.irqfds of irqfds of a VM.
• pt — structure for select/poll on the associated eventfd.
• msi — MSI data.
• flags — internal lifecycle flags (HSM_IRQFD_FLAG_*).

🔥 SEE ALSO 🔥

Kernel file ./drivers/virt/acrn/irqfd.c — go read it, bestie, it’s right there. 👑

mwah 💋 this page comes from the source/version ./drivers/virt/acrn and is dated October 2026. periodt. 💖