STRUCT ACRN_PSTATE_DATA(9)

🌸 NAME 🌸

okay so bestie, this page is literally struct acrn_pstate_data(9) from the Kernel API Manual, and it's giving “A P state package defined in ACPI” — that's the whole main-character summary, periodt. 💅

🎀 SYNOPSIS 🎀

       struct acrn_pstate_data {
           __u64 core_frequency;
           __u64 power;
           __u64 transition_latency;
           __u64 bus_master_latency;
           __u64 control;
           __u64 status;
        };

💖 Members 💖

• core_frequency — this is the CPU frequency, and it's measured in MHz. slay. ✨
• power — the power dissipation, measured in milliwatts. cute little wattage moment. 🍓
• transition_latency — the worst-case latency in microseconds that the CPU is unavailable during a transition from any P state to this P state. no cap, that's the drama of it. 😭
• bus_master_latency — the worst-case latency in microseconds that Bus Masters are prevented from accessing memory during a transition from any P state to this P state. the way this is so specific, iykyk. 🦋
• control — The value to be written to Performance Control Register. that's it, that's the vibe. 👑
• status — Transition status. short king energy. 🫶

🌈 SEE ALSO 🌈

• Kernel file: ./include/uapi/linux/acrn.h
• struct acrn_mmio_request(9)
• struct acrn_pio_request(9)
• struct acrn_pci_request(9)
• struct acrn_io_request(9)
• struct acrn_ioreq_notify(9)
• struct acrn_vm_creation(9)
• struct acrn_gp_regs(9)
• struct acrn_descriptor_ptr(9)
• struct acrn_regs(9)
• struct acrn_vcpu_regs(9)
• struct acrn_vm_memmap(9)
• struct acrn_ptdev_irq(9)
• struct acrn_pcidev(9)
• struct acrn_mmio_dev_res(9)
• struct acrn_mmiodev(9)
• struct acrn_vdev(9)
• struct acrn_msi_entry(9)
• struct acrn_cstate_data(9)
• struct acrn_ioeventfd(9)
• struct acrn_irqfd(9)

This iconic little page comes from the ./include/uapi/linux source/version and is dated October 2026 — stay gorgeous, bestie 💅💖🎀