Table MIB
| Name | Description | Type | Format | Flags | Label | Handler | OID |
|---|---|---|---|---|---|---|---|
| hw | hardware | node | N | RD, WR, MPSAFE | Undefined | 6 | |
| hw.aac | AAC driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.aac.enable_msi | Enable MSI interrupts | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.aacraid | AACRAID driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.acpi | node | N | RD, DYN, MPSAFE | Undefined | 6. [dyn] | ||
| hw.acpi.acline | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.acpi.apei | ACPI Platform Error Interface | node | N | RD, DYN, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.acpi.apei.log_corrected | Log corrected errors to the console | integer | I | RD, WR, DYN, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.battery | battery status and info | node | N | RD, DYN, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.acpi.battery.info_expire | time in seconds until info is refreshed | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.battery.life | percent capacity remaining | integer | I | RD, DYN, NEEDGIANT | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.battery.rate | present rate in mW | integer | I | RD, DYN, NEEDGIANT | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.battery.state | current status flags | integer | I | RD, DYN, NEEDGIANT | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.battery.time | remaining time in minutes | integer | I | RD, DYN, NEEDGIANT | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.battery.units | number of batteries | integer | I | RD, DYN, NEEDGIANT | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.cpu | node for CPU children | node | N | RD, DYN, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.acpi.cpu.cppc_notify | Register for CPPC Notifications | uint8_t | CU | RD, DYN, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.cpu.cx_lowest | Global lowest Cx sleep state to use | string | A | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.disable_on_reboot | Disable ACPI when rebooting/halting system | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.handle_reboot | Use ACPI Reset Register to reboot | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.lid_switch_state | Lid ACPI sleep state. Set to S3 if you want to suspend your laptop when close the Lid. | string | A | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.override_isa_irq_polarity | Force active-hi polarity for edge-triggered ISA IRQs | integer | I | RD, DYN, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.power_button_state | Power button ACPI sleep state. | string | A | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.reset_video | Call the VESA reset BIOS vector on the resume path | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.s4bios | S4BIOS mode | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.sleep_button_state | Sleep button ACPI sleep state. | string | A | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.sleep_delay | sleep delay in seconds | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.standby_state | string | A | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.acpi.supported_sleep_state | List supported ACPI sleep states. | string | A | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.acpi.suspend_state | string | A | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.acpi.thermal | node | N | RD, DYN, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.acpi.thermal.min_runtime | minimum cooling run time in sec | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.polling_rate | monitor polling interval in seconds | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0 | node | N | RD, DYN, MPSAFE | thermal_zone | Undefined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0._ACx | integer | IK | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | ||
| hw.acpi.thermal.tz0._CR3 | too warm temp setpoint (standby now) | integer | IK | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0._CRT | critical temp setpoint (shutdown now) | integer | IK | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0._HOT | too hot temp setpoint (suspend now) | integer | IK | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0._PSV | passive cooling temp setpoint | integer | IK | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0._TC1 | thermal constant 1 for passive cooling | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0._TC2 | thermal constant 2 for passive cooling | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0._TSP | thermal sampling period for passive cooling | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0.active | cooling is active | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0.passive_cooling | enable passive (speed reduction) cooling | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0.temperature | current thermal zone temperature | integer | IK | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz0.thermal_flags | thermal zone flags | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1 | node | N | RD, DYN, MPSAFE | thermal_zone | Undefined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1._ACx | integer | IK | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | ||
| hw.acpi.thermal.tz1._CR3 | too warm temp setpoint (standby now) | integer | IK | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1._CRT | critical temp setpoint (shutdown now) | integer | IK | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1._HOT | too hot temp setpoint (suspend now) | integer | IK | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1._PSV | passive cooling temp setpoint | integer | IK | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1._TC1 | thermal constant 1 for passive cooling | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1._TC2 | thermal constant 2 for passive cooling | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1._TSP | thermal sampling period for passive cooling | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1.active | cooling is active | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1.passive_cooling | enable passive (speed reduction) cooling | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1.temperature | current thermal zone temperature | integer | IK | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.tz1.thermal_flags | thermal zone flags | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.acpi.thermal.user_override | allow override of thermal settings | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.acpi.verbose | verbose mode | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu | AMD GPU parameters | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn] | |
| hw.amdgpu.abmlevel | ABM level (0 = off (default), 1-4 = backlight reduction level) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.aspm | ASPM support (1 = enable, 0 = disable, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.async_gfx_ring | Asynchronous GFX rings that could be configured with either different priorities (HP3D ring and LP3D ring), or equal priorities (0 = disabled, 1 = enabled (default)) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.audio | Audio enable (-1 = auto, 0 = disable, 1 = enable) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.backlight | Backlight control (0 = pwm, 1 = aux, -1 auto (default)) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.bad_page_threshold | Bad page threshold(-1 = auto(default value), 0 = disable bad page retirement, -2 = ignore bad page threshold) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.bapm | BAPM support (1 = enable, 0 = disable, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.benchmark | Run benchmark | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.cg_mask | Clockgating flags mask (0 = disable clock gating) | uint64_t | QU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.cik_support | CIK support (1 = enabled (default), 0 = disabled) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.compute_multipipe | Force compute queues to be spread across pipes (1 = enable, 0 = disable, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.dc | Display Core driver (1 = enable, 0 = disable, -1 = auto (default)) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.dcdebugmask | all debug options disabled (default)) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.dcfeaturemask | all stable DC features enabled (default)) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.deep_color | Deep Color support (1 = enable, 0 = disable (default)) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.discovery | Allow driver to discover hardware IPs from IP Discovery table at the top of VRAM | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.disp_priority | Display Priority (0 = auto, 1 = normal, 2 = high) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.dpm | DPM support (1 = enable, 0 = disable, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.emu_mode | Emulation mode, (1 = enable, 0 = disable) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.exp_hw_support | experimental hw support (1 = enable, 0 = disable (default)) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.force_asic_type | A non negative value used to specify the asic type for all supported GPUs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.forcelongtraining | force memory long training | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.freesync_video | Enable freesync modesetting optimization feature (0 = off (default), 1 = on) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.fw_load_type | firmware loading type (3 = rlc backdoor autoload if supported, 2 = smu load if supported, 1 = psp load, 0 = force direct if supported, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.gartsize | Size of GART to setup in megabytes (32, 64, etc., -1=auto) | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.gpu_recovery | Enable GPU recovery mechanism, (2 = advanced tdr mode, 1 = enable, 0 = disable, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.gttsize | Size of the GTT domain in megabytes (-1 = auto) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.hw_i2c | hw i2c engine enable (0 = disable) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.ip_block_mask | IP Block Mask (all blocks enabled (default)) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.job_hang_limit | how much time allow a job hang and not drop it (default 0) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.lbpw | Load Balancing Per Watt (LBPW) support (1 = enable, 0 = disable, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.lockup_timeout | GPU lockup timeout in ms (default: for bare metal 10000 for non-compute jobs and 60000 for compute jobs; for passthrough or sriov, 10000 for all jobs. 0: keep default value. negative: infinity timeout), format: for bare metal [Non-Compute] or [GFX,Compute,SDMA,Video]; for passthrough or sriov [all jobs] or [GFX,Compute,SDMA,Video]. | string | A | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.mcbp | Enable Mid-command buffer preemption (0 = disabled (default), 1 = enabled) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.mes | Enable Micro Engine Scheduler (0 = disabled (default), 1 = enabled) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.mes_kiq | Enable Micro Engine Scheduler KIQ (0 = disabled (default), 1 = enabled) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.moverate | Maximum buffer migration rate in MB/s. (32, 64, etc., -1=auto, 0=1=disabled) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.msi | MSI support (1 = enable, 0 = disable, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.noretry | Disable retry faults (0 = retry enabled, 1 = retry disabled, -1 auto (default)) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.num_kcq | number of kernel compute queue user want to setup (8 if set to greater than 8 or less than 0, only affect gfx 8+) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.pcie_gen2 | PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.pcie_gen_cap | PCIE Gen Caps (0: autodetect (default)) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.pcie_lane_cap | PCIE Lane Caps (0: autodetect (default)) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.pg_mask | Powergating flags mask (0 = disable power gating) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.ppfeaturemask | all power features enabled (default)) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.ras_enable | Enable RAS features on the GPU (0 = disable, 1 = enable, -1 = auto (default)) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.ras_mask | Mask of RAS features to enable (default 0xffffffff), only valid when ras_enable == 1 | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.reset_method | GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco/bamaco) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.runpm | PX runtime pm (2 = force enable with BAMACO, 1 = force enable with BACO, 0 = disable, -1 = auto) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.sched_hw_submission | the max number of HW submissions (default 2) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.sched_jobs | the max number of jobs supported in the sw queue (default 32) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.sdma_phase_quantum | SDMA context switch phase quantum (x 1K GPU clock cycles, 0 = no change (default 32)) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.sg_display | S/G Display (-1 = auto (default), 0 = disable) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.si_support | SI support (1 = enabled (default), 0 = disabled) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.smu_memory_pool_size | reserve gtt for smu debug usage, 0 = disable,0x1 = 256Mbyte, 0x2 = 512Mbyte, 0x4 = 1 Gbyte, 0x8 = 2GByte | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.smu_pptable_id | specify pptable id to be used (-1 = auto(default) value, 0 = use pptable from vbios, > 0 = soft pptable id) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.test | Run tests | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.timeout_fatal_disable | disable watchdog timeout fatal error (false = default) | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.timeout_period | watchdog timeout period (0 = timeout disabled, 1 ~ 0x23 = timeout maxcycles = (1 << period) | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.tmz | Enable TMZ feature (-1 = auto (default), 0 = off, 1 = on) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.use_xgmi_p2p | Enable XGMI P2P interface (0 = disable; 1 = enable (default)) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vcnfw_log | Enable vcnfw log(0 = disable (default value), 1 = enable) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vis_vramlimit | Restrict visible VRAM for testing, in megabytes | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.visualconfirm | Visual confirm (0 = off (default), 1 = MPO, 5 = PSR) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vm_block_size | VM page table size in bits (default depending on vm_size) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vm_debug | Debug VM handling (0 = disabled (default), 1 = enabled) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vm_fault_stop | Stop on VM fault (0 = never (default), 1 = print first, 2 = always) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vm_fragment_size | VM fragment size in bits (4, 5, etc. 4 = 64K (default), Max 9 = 2M) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vm_size | VM address space size in gigabytes (default 64GB) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vm_update_mode | VM update using CPU (0 = never (default except for large BAR(LB)), 1 = Graphics only, 2 = Compute only (default for LB), 3 = Both | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.amdgpu.vramlimit | Restrict VRAM for testing, in megabytes | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.apic | APIC options | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.apic.ds_idle_timeout | timeout (in us) for APIC Delivery Status to become Idle (xAPIC only) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.apic.enable_extint | Enable the ExtINT pin in the first I/O APIC | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.apic.eoi_suppression | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.apic.timer_tsc_deadline | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.apic.x2apic_mode | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.ata | ATA driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.ata.ata_dma_check_80pin | Check for 80pin cable before setting ATA DMA mode | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ath | Atheros driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.ath.anical | ANI calibration (msecs) | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ath.bstuck | max missed beacon xmits before chip reset | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ath.hal | Atheros HAL parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.ath.longcal | long chip calibration interval (secs) | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ath.resetcal | reset chip calibration results (secs) | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ath.rxbuf | rx buffers allocated | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ath.shortcal | short chip calibration interval (msecs) | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ath.txbuf | tx buffers allocated | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ath.txbuf_mgmt | tx (mgmt) buffers allocated | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.atkbd | AT keyboard | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.atkbd.hz | Polling frequency (in hz) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.availpages | Amount of physical memory (in pages) | long integer | L | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.bce | bce driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.bce.hdr_split | Frame header/payload splitting Enable/Disable | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.msi_enable | MSI-X|MSI|INTx selector | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.rx_pages | Receive buffer descriptor pages (1 page = 255 buffer descriptors) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.rx_quick_cons_trip | Receive BD trip point | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.rx_quick_cons_trip_int | Receive BD trip point during interrupts | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.rx_ticks | Receive ticks count | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.rx_ticks_int | Receive ticks count during interrupt | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.strict_rx_mtu | Enable/Disable strict RX frame size checking | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.tso_enable | TSO Enable/Disable | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.tx_pages | Transmit buffer descriptor pages (1 page = 255 buffer descriptors) | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.tx_quick_cons_trip | Transmit BD trip point | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.tx_quick_cons_trip_int | Transmit BD trip point during interrupts | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.tx_ticks | Transmit ticks count | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.tx_ticks_int | Transmit ticks count during interrupt | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bce.verbose | Verbose output enable/disable | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bge | BGE driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.bge.allow_asf | Allow ASF mode if available | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.broken_txfifo | UART FIFO has QEMU emulation bug | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.bus | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn] | ||
| hw.bus.devctl_nomatch_enabled | enable nomatch events | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bus.devctl_queue | devctl queue length | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bus.devices | system device tree | node | N | RD, NEEDGIANT | Defined | 6. [dyn]. [dyn] | |
| hw.bus.disable_failed_devices | Do not retry attaching devices that return an error from DEVICE_ATTACH the first time | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bus.info | bus-related data | opaque | S,u_businfo | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.bus.rman | kernel resource manager | node | N | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.busdma | Busdma parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.busdma.total_bpages | Total bounce pages | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.busdma.zone0 | node | N | RD, DYN, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.busdma.zone0.active_bpages | Active bounce pages | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone0.alignment | uint64_t | QU | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.busdma.zone0.domain | memory domain | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone0.free_bpages | Free bounce pages | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone0.lowaddr | string | A | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.busdma.zone0.reserved_bpages | Reserved bounce pages | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone0.total_bounced | Total bounce requests (pages bounced) | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone0.total_bpages | Total bounce pages | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone0.total_deferred | Total bounce requests that were deferred | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone0.total_deferred_time | Cumulative time busdma requests are deferred (us) | int64_t | Q | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone1 | node | N | RD, DYN, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.busdma.zone1.active_bpages | Active bounce pages | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone1.alignment | uint64_t | QU | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.busdma.zone1.domain | memory domain | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone1.free_bpages | Free bounce pages | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone1.lowaddr | string | A | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.busdma.zone1.reserved_bpages | Reserved bounce pages | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone1.total_bounced | Total bounce requests (pages bounced) | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone1.total_bpages | Total bounce pages | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.busdma.zone1.total_deferred | Total bounce requests that were deferred | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.bxe | bxe driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.bxe.autogreeen | AutoGrEEEn support | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.debug | Debug logging mode | unsigned long | LU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.hc_rx_ticks | Host Coalescing Rx ticks | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.hc_tx_ticks | Host Coalescing Tx ticks | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.interrupt_mode | Interrupt (MSI-X/MSI/INTx) mode | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.max_aggregation_size | max aggregation size | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.max_rx_bufs | Maximum Number of Rx Buffers Per Queue | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.mrrs | PCIe maximum read request size | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.queue_count | Multi-Queue queue count | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.rx_budget | Rx processing budget | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.bxe.udp_rss | UDP RSS support | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.byteorder | System byte order | integer | I | RD, MPSAFE, CAPRD | Defined | 6. 4 | |
| hw.cardbus | CardBus parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.cardbus.cis_debug | CardBus CIS debug | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.cardbus.debug | CardBus debug | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.cbb | CBB parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.cbb.debug | Verbose cardbus bridge debugging | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.cbb.start_16_io | Starting ioport for 16-bit cards | unsigned long | LU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.cbb.start_32_io | Starting ioport for 32-bit cards | unsigned long | LU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.cbb.start_memory | Starting address for memory allocations | unsigned long | LU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ciss | CISS sysctl tunables | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.ciss.base_transfer_speed | force a specific base transfer_speed | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ciss.expose_hidden_physical | expose hidden physical drives | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ciss.force_interrupt | use default (0), force INTx (1) or force MSIx(2) interrupts | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ciss.force_transport | use default (0), force simple (1) or force performant (2) transport | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ciss.initiator_id | force a specific initiator id | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ciss.nop_message_heartbeat | nop heartbeat messages | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ciss.verbose | enable verbose messages | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.clockrate | CPU instruction clock rate | integer | I | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.dri | DRI args | node | N | RD, WR | Undefined | 6. [dyn] | |
| hw.dri.[num] | node | N | RD, WR, DYN | Undefined | 6. [dyn]. [dyn] | ||
| hw.dri.[num].busid | string | A | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.dri.[num].clients | string | A | RD, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.dri.[num].modesetting | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.dri.[num].name | string | A | RD, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.dri.[num].vblank | string | A | RD, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.dri.__drm_debug | drm debug flags | long integer | L | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.debug | Enable debug output, where each bit enables a debug category. Bit 0 (0x01) will enable CORE messages (drm core code) Bit 1 (0x02) will enable DRIVER messages (drm controller code) Bit 2 (0x04) will enable KMS messages (modesetting code) Bit 3 (0x08) will enable PRIME messages (prime code) Bit 4 (0x10) will enable ATOMIC messages (atomic code) Bit 5 (0x20) will enable VBL messages (vblank code) Bit 7 (0x80) will enable LEASE messages (leasing code) Bit 8 (0x100) will enable DP messages (displayport code) | unsigned long | LU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.dp_aux_i2c_speed_khz | Assumed speed of the i2c bus in kHz, (1-400, default 10) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.dp_aux_i2c_transfer_size | Number of bytes to transfer in a single I2C over DP AUX CH message, (1-16, default 16) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.drm_debug_persist | keep drm debug flags post-load | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.drm_fbdev_overalloc | Overallocation of the fbdev buffer (%) [default=100] | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.edid_fixup | Minimum number of valid EDID header bytes (0-8, default 6) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.fbdev_emulation | Enable legacy fbdev emulation [default=true] | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.poll | help drm kms poll | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.skip_ddb | go straight to dumping core | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.timestamp_precision | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.dri.timestamp_precision_usec | Max. error on timestamps [usecs] | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.dri.vblank_offdelay | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.dri.vblankoffdelay | Delay until vblank irq auto-disable [msecs] (0: never disable, <0: disable immediately) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.efi | EFI | node | N | RD, WR, TUN, MPSAFE | Undefined | 6. [dyn] | |
| hw.efi.poweroff | If true, use EFI runtime services to power off in preference to ACPI | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.efi.print_faults | Print fault information upon trap from EFIRT calls: 0 - never, 1 - once, 2 - always | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.efi.total_faults | Total number of faults that occurred during EFIRT calls | unsigned long | LU | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.em | EM driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.em.disable_crc_stripping | Disable CRC Stripping | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.eee_setting | Enable Energy Efficient Ethernet | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.enable_aim | Enable adaptive interrupt moderation (1=normal, 2=lowlatency) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.max_interrupt_rate | Maximum interrupts per second | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.rx_abs_int_delay | Default receive interrupt delay limit in usecs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.rx_int_delay | Default receive interrupt delay in usecs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.rx_process_limit | Maximum number of received packets to process at a time, -1 means unlimited | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.sbp | Show bad packets in promiscuous mode | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.smart_pwr_down | Set to true to leave smart power down enabled on newer adapters | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.tx_abs_int_delay | Default transmit interrupt delay limit in usecs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.tx_int_delay | Default transmit interrupt delay in usecs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.em.unsupported_tso | Allow unsupported em(4) TSO configurations | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ena | ENA driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.ena.driver_version | ENA driver version | string | A | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ena.enable_9k_mbufs | Use 9 kB mbufs for Rx descriptors | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ena.force_large_llq_header | Change default LLQ entry size received from the device | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ena.log_level | Logging level indicating verbosity of the logs | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.floatingpoint | Floating point instructions executed in hardware | integer | I | RD, MPSAFE | Defined | 6. 10 | |
| hw.hid | HID debugging | node | N | RD, WR | Undefined | 6. [dyn] | |
| hw.hid.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hid.hkbd | USB keyboard | node | N | RD, WR | Undefined | 6. [dyn]. [dyn] | |
| hw.hid.hkbd.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.hid.hkbd.no_leds | Disables setting of keyboard leds | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.hid.hmt | MSWindows 7/8/10 compatible HID Multi-touch Device | node | N | RD, WR | Undefined | 6. [dyn]. [dyn] | |
| hw.hid.hmt.timestamps | Enable hardware timestamp reporting | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.hn | Hyper-V network interface | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.hn.chan_cnt | # of channels to use; each channel has one RX ring and one TX ring | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.direct_tx_size | Size of the packet for direct transmission | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.enable_udp4cs | Offload UDP/IPv4 checksum | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.enable_udp6cs | Offload UDP/IPv6 checksum | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.lro_entry_count | LRO entry count | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.lro_mbufq_depth | Depth of LRO mbuf queue | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.trust_hostip | Trust ip packet verification on host side, when csum info is missing (global setting) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.trust_hosttcp | Trust tcp segment verification on host side, when csum info is missing (global setting) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.trust_hostudp | Trust udp datagram verification on host side, when csum info is missing (global setting) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.tso_maxlen | TSO burst limit | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.tx_agg_pkts | Packet transmission aggregation packet limit | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.tx_agg_size | Packet transmission aggregation size limit | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.tx_chimney_size | Chimney send packet size limit | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.tx_ring_cnt | # of TX rings to use | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.tx_swq_depth | Depth of IFQ or BUFRING | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.tx_taskq_cnt | # of TX taskqueues | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.tx_taskq_mode | TX taskqueue modes: 0 - independent, 1 - share global tx taskqs, 2 - share event taskqs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.udpcs_fixup | # of UDP checksum fixup | uint64_t | QU | RD, WR, MPSAFE, STATS | Defined | 6. [dyn]. [dyn] | |
| hw.hn.udpcs_fixup_mtu | UDP checksum fixup MTU threshold | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.use_if_start | Use if_start TX method | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.use_txdesc_bufring | Use buf_ring for TX descriptors | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.hn.vf_transparent | Transparent VF mod | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.vf_xpnt_accbpf | Accurate BPF for transparent VF | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.vf_xpnt_attwait | Extra wait for transparent VF attach routing; unit: seconds | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hn.vflist | VF list | string | A | RD, NEEDGIANT | Defined | 6. [dyn]. [dyn] | |
| hw.hn.vfmap | VF mapping | string | A | RD, NEEDGIANT | Defined | 6. [dyn]. [dyn] | |
| hw.hv_vendor | Hypervisor vendor | string | A | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.hvtimesync | Hyper-V timesync interface | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn] | |
| hw.hvtimesync.ignore_sync | Ignore the sync request. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hvtimesync.sample_thresh | Threshold that makes sample request trigger the sync (unit: ms). | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.hvtimesync.sample_verbose | Increase sample request verbosity. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.i2c | i2c controls | node | N | RD, WR | Undefined | 6. [dyn] | |
| hw.i2c.iicbb_debug | Enable i2c bit-banging driver debug | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.iavf | IAVF driver parameters | node | N | RD | Undefined | 6. [dyn] | |
| hw.iavf.core_debug_mask | Display debug statements that are printed in non-shared code | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.iavf.enable_head_writeback | For detecting last completed TX descriptor by hardware, use value written by HW instead of checking descriptors. For 700 series VFs only. | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.iavf.rx_itr | RX Interrupt Rate | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.iavf.shared_debug_mask | Display debug statements that are printed in shared code | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.iavf.tx_itr | TX Interrupt Rate | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ibrs_active | Indirect Branch Restricted Speculation active | integer | I | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.ibrs_disable | Disable Indirect Branch Restricted Speculation | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.ice | ICE driver parameters | node | N | RD | Undefined | 6. [dyn] | |
| hw.ice.debug | ICE driver debug parameters | node | N | RD, SKIP | Undefined | 6. [dyn]. [dyn] | |
| hw.ice.debug.enable_tx_fc_filter | Drop Ethertype 0x8808 control frames originating from non-HW sources | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.ice.debug.enable_tx_lldp_filter | Drop Ethertype 0x88cc LLDP frames originating from non-HW sources | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.ice.debug.tx_balance_en | Enable 5-layer scheduler topology | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.ice.enable_health_events | Enable FW health event reporting globally | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ice.irdma | Enable iRDMA client interface | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ice.rdma_max_msix | Maximum number of MSI-X vectors to reserve per RDMA interface | uint16_t | SU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc | igc driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.igc.disable_crc_stripping | Disable CRC Stripping | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.eee_setting | Enable Energy Efficient Ethernet | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.enable_aim | Enable adaptive interrupt moderation (1=normal, 2=lowlatency) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.max_interrupt_rate | Maximum interrupts per second | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.rx_abs_int_delay | Default receive interrupt delay limit in usecs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.rx_int_delay | Default receive interrupt delay in usecs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.rx_process_limit | Maximum number of received packets to process at a time, -1 means unlimited | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.sbp | Show bad packets in promiscuous mode | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.smart_pwr_down | Set to true to leave smart power down enabled on newer adapters | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.tx_abs_int_delay | Default transmit interrupt delay limit in usecs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.igc.tx_int_delay | Default transmit interrupt delay in usecs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.instruction_sse | SIMD/MMX2 instructions available in CPU | integer | I | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.intel_graphics_stolen_base | Base address of the intel graphics stolen memory. | uint64_t | QU | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.intel_graphics_stolen_size | Size of the intel graphics stolen memory. | uint64_t | QU | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.intr_epoch_batch | Maximum interrupt handler executions without re-entering epoch(9) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.intr_hwpmc_waiting_report_threshold | Threshold for reporting number of events in a workq | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.intr_storm_threshold | Number of consecutive interrupts before storm protection is enabled | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.intrbalance | Interrupt auto-balance interval (seconds). Zero disables. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.intrcnt | Interrupt Counts | opaque | RD, MPSAFE | Defined | 6. [dyn] | ||
| hw.intrnames | Interrupt Names | opaque | RD, MPSAFE | Defined | 6. [dyn] | ||
| hw.intrs | interrupt:number @cpu: count | string | A | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.ioat | ioat node | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.ioat.channels | Number of IOAT channels attached | unsigned integer | IU | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ioat.debug_level | Set log level (0-3) for ioat(4). Higher is more verbose. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ioat.enable_ioat_test | Non-zero: Enable the /dev/ioat_test device | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ioat.force_legacy_interrupts | Set to non-zero to force MSI-X disabled | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ioat.ring_order | Set IOAT ring order. (1 << this) == ring size. | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.iommu | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn] | ||
| hw.iommu.batch_coalesce | Number of qi batches between interrupt | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.iommu.check_free | Check the GPA RBtree for free_down and free_after validity | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.iommu.dmar | node | N | RD, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.iommu.dmar.batch_coalesce | Number of qi batches between interrupt | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.iommu.dmar.tbl_pagecnt | Count of pages used for DMAR pagetables | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.iommu.dmar.timeout | Timeout for command wait, in nanoseconds | uint64_t | QU | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.iommu.tbl_pagecnt | Count of pages used for IOMMU pagetables | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.ix | IXGBE driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.ix.advertise_speed | Default advertised speed for all adapters | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ix.enable_aim | Enable adaptive interrupt moderation | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ix.enable_fdir | Enable Flow Director | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ix.enable_msix | Enable MSI-X interrupts | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ix.enable_rss | Enable Receive-Side Scaling (RSS) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ix.flow_control | Default flow control used for all adapters | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ix.max_interrupt_rate | Maximum interrupts per second | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ix.unsupported_sfp | Allow unsupported SFP modules...use at your own risk | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ixl | ixl driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.ixl.core_debug_mask | Display debug statements that are printed in non-shared code | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ixl.enable_head_writeback | For detecting last completed TX descriptor by hardware, use value written by HW instead of checking descriptors | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ixl.enable_vf_loopback | Determines mode that embedded device switch will use when SR-IOV is initialized: 0 - Disable (VEPA) 1 - Enable (VEB) Enabling this will allow VFs in separate VMs to communicate over the hardware bridge. | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ixl.flow_control | Initial Flow Control setting | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ixl.i2c_access_method | I2C access method that driver will use: 0 - best available method 1 - bit bang via I2CPARAMS register 2 - register read/write via I2CCMD register 3 - Use Admin Queue command (best) Using the Admin Queue is only supported on 710 devices with FW version 1.7 or higher | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ixl.rx_itr | RX Interrupt Rate | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ixl.shared_debug_mask | Display debug statements that are printed in shared code | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ixl.tx_itr | TX Interrupt Rate | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.kbd | kbd | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.kbd.keymap_restrict_change | restrict ability to change keymap | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.lower_amd64_sharedpage | Lower sharedpage to work around Ryzen issue with executing code near the top of user memory | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.machine | Machine class | string | A | RD, MPSAFE, CAPRD | Defined | 6. 1 | |
| hw.machine_arch | System architecture | string | A | RD, MPSAFE, CAPRD | Defined | 6. 11 | |
| hw.malo | Marvell 88w8335 driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.malo.pci | Marvell 88W8335 driver PCI parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.malo.pci.msi_disable | MSI disabled | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.malo.rxbuf | rx buffers allocated | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.malo.rxquota | max rx buffers to process per interrupt | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.malo.txbuf | tx buffers allocated | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.malo.txcoalesce | tx buffers to send at once | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca | Machine Check Architecture | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.mca.amd10h_L1TP | Administrative toggle for logging of level one TLB parity (L1TP) errors | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca.cmc_throttle | Interval in seconds to throttle corrected MC interrupts | integer | I | RD, WR, DYN, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca.count | Record count | integer | I | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.mca.enabled | Administrative toggle for machine check support | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca.erratum383 | Is the workaround for Erratum 383 on AMD Family 10h processors enabled? | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca.force_scan | Force an immediate scan for machine checks | integer | I | RD, WR, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.mca.intel6h_HSD131 | Administrative toggle for logging of spurious corrected errors | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca.interval | Periodic interval in seconds to scan for machine checks | integer | I | RD, WR, DYN, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca.log_corrected | Log corrected errors to the console | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca.maxcount | Maximum record count (-1 is unlimited) | integer | I | RD, WR, DYN, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mca.records | Machine check records | node | N | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.mds_disable | Microarchitectural Data Sampling Mitigation (0 - off, 1 - on VERW, 2 - on SW, 3 - on AUTO) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.mds_disable_state | Microarchitectural Data Sampling Mitigation state | string | A | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.mfi | MFI driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.mfi.cmd_timeout | Command timeout (in seconds) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mfi.detect_jbod_change | Detect a change to a JBOD | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mfi.event_class | event message class | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mfi.event_locale | event message locale | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mfi.max_cmds | Max commands limit (-1 = controller limit) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mfi.mrsas_enable | Allow mrsas to take newer cards | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mfi.msi | Enable use of MSI interrupts | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mfi.polled_cmd_timeout | Polled command timeout - used for firmware flash etc (in seconds) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.midi | Midi driver | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.midi.debug | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.midi.dumpraw | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.midi.instroff | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.midi.seq | Midi sequencer | node | N | RD, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.midi.seq.debug | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.midi.stat | Status device | node | N | RD, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.midi.stat.verbose | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.mlx5 | mlx5 hardware controls | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn] | |
| hw.mlx5.auto_fw_update | Allow automatic firmware update on driver start | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mlx5.calibr | MLX5 timestamp calibration parameters | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.mlx5.calibr.duration | Duration of initial calibration | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.mlx5.calibr.fast | Recalibration interval during initial calibration | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.mlx5.calibr.normal | Recalibration interval during normal operations | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.mlx5.comp_eq_size | Set default completion EQ size between 1024 and 16384 inclusivly. Value should be power of two. | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mlx5.debug_mask | debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0 | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mlx5.fast_unload_enabled | Set to enable fast unload. Clear to disable. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mlx5.fw_dump_enable | Enable fw dump setup and op | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mlx5.fw_reset_enable | Enable firmware reset | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mlx5.prof_sel | profile selector. Valid range 0 - 2 | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mlx5.relaxed_ordering_write | Set to enable relaxed ordering for PCIe writes | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mlx5.sw_reset_timeout | Minimum timeout in seconds between two firmware resets | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mmc | mmc driver | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.mmc.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mmcsd | mmcsd driver | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.mmcsd.cache | Device R/W cache enabled if present | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.model | Machine model | string | A | RD, MPSAFE, CAPRD | Defined | 6. 2 | |
| hw.mpi3mr | MPI3MR Driver Parameters | node | N | RD | Undefined | 6. [dyn] | |
| hw.mpr | MPR Driver Parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.mps | MPS Driver Parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.mrsas | MRSAS Driver Parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.mwl | Marvell driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.mwl.hal | Marvell HAL parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.mwl.rxbuf | rx buffers allocated | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mwl.rxdesc | rx descriptors allocated | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.mwl.rxdmalow | min free rx buffers before restarting traffic | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mwl.rxquota | max rx buffers to process per interrupt | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mwl.txbuf | tx buffers allocated | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.mwl.txcoalesce | tx buffers to send at once | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ncpu | Number of active CPUs | integer | I | RD, MPSAFE, CAPRD | Defined | 6. 3 | |
| hw.nvd | nvd driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.nvd.delete_max | nvd maximum BIO_DELETE size in bytes | uint64_t | QU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.nvidia | NVIDIA SYSCTL Parent Node | node | N | RD, DYN | Undefined | 6. [dyn] | |
| hw.nvidia.gpus | NVIDIA SYSCTL GPUs Node | node | N | RD, DYN | Undefined | 6. [dyn]. [dyn] | |
| hw.nvidia.gpus.[num] | NVIDIA SYSCTL GPU Node | node | N | RD, DYN | Undefined | 6. [dyn]. [dyn]. [dyn] | |
| hw.nvidia.gpus.[num].firmware | NVIDIA GPU Firmware Version | string | A | RD, DYN | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.nvidia.gpus.[num].irq | NVIDIA GPU IRQ Number | unsigned integer | IU | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.nvidia.gpus.[num].model | NVIDIA GPU Model Name | string | A | RD, DYN | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.nvidia.gpus.[num].type | NVIDIA GPU Bus Type | string | A | RD, DYN | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.nvidia.gpus.[num].uuid | NVIDIA GPU UUID | string | A | RD, DYN | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.nvidia.gpus.[num].vbios | NVIDIA GPU VBIOS Version | string | A | RD, DYN | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.nvidia.registry | NVIDIA SYSCTL Registry Node | node | N | RD, DYN | Undefined | 6. [dyn]. [dyn] | |
| hw.nvidia.registry.CreateImexChannel0 | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.DeviceFileGID | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.DeviceFileMode | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.DeviceFileUID | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.DmaRemapPeerMmio | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.DynamicPowerManagement | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.DynamicPowerManagementVideoMemoryThreshold | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnableDbgBreakpoint | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnableGpuFirmware | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnableGpuFirmwareLogs | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnableMSI | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnablePCIERelaxedOrderingMode | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnablePCIeGen3 | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnableResizableBar | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnableS0ixPowerManagement | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnableStreamMemOPs | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.EnableUserNUMAManagement | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.GrdmaPciTopoCheckOverride | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.IgnoreMMIOCheck | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.ImexChannelCount | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.InitializeSystemMemoryAllocations | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.KMallocHeapMaxSize | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.MemoryPoolSize | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.ModifyDeviceFiles | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.NvLinkDisable | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.OpenRmEnableUnsupportedGpus | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.PreserveVideoMemoryAllocations | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.RegisterPCIDriver | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.ResmanDebugLevel | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.RmLogonRC | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.RmNvlinkBandwidthLinkCount | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.RmProfilingAdminOnly | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.S0ixPowerManagementVideoMemoryThreshold | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.TCEBypassMode | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.UsePageAttributeTable | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.VMallocHeapMaxSize | unsigned integer | IU | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.registry.dwords | string | A | RD, WR, DYN | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.nvidia.version | NVIDIA Resource Manager (NVRM) Version | string | A | RD, DYN, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.nvidiadrm | nvidia-drm kernel module parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.nvidiadrm.fbdev | Enable atomic kernel modesetting (1 = enable (default), 0 = disable | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.nvidiadrm.modeset | Enable atomic kernel modesetting (1 = enable, 0 = disable (default)) | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.nvme | NVMe sysctl tunables | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.nvme.use_nvd | 1 = Create NVD devices, 0 = Create NDA devices | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.nvme.verbose_cmd_dump | enable verbose command printing when a command fails | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pagesize | System memory page size | integer | I | RD, MPSAFE, CAPRD | Defined | 6. 7 | |
| hw.pagesizes | Supported page sizes | opaque | S,pagesizes | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.pci | PCI bus tuning parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.pci.clear_aer_on_attach | Clear port and device AER state on driver attach | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.clear_bars | Ignore firmware-assigned resources for BARs. | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.clear_buses | Ignore firmware-assigned bus numbers. | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.clear_pcib | Clear firmware-assigned resources for PCI-PCI bridge I/O windows. | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.default_vgapci_unit | Default VGA-compatible display | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.do_power_nodriver | Place a function into D3 state when no driver attaches to it. 0 means disable. 1 means conservatively place function into D3 state. 2 means aggressively place function into D3 state. 3 means put absolutely everything in D3 state. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.do_power_resume | Transition from D3 -> D0 on resume. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.do_power_suspend | Transition from D0 -> D3 on suspend. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.enable_ari | Enable support for PCIe Alternative RID Interpretation | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.enable_aspm | Enable support for PCIe Active State Power Management | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.enable_io_modes | Enable I/O and memory bits in the config register. Some BIOSes do not enable these bits correctly. We'd like to do this all the time, but there are some peripherals that this causes problems with. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.enable_mps_tune | Enable tuning of MPS(maximum payload size). | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.enable_msi | Enable support for MSI interrupts | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.enable_msix | Enable support for MSI-X interrupts | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.enable_pcie_ei | Enable support for PCI-express Electromechanical Interlock. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.enable_pcie_hp | Enable support for native PCI-express HotPlug. | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.honor_msi_blacklist | Honor chipset blacklist for MSI/MSI-X | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.host_mem_start | Limit the host bridge memory to being above this address. | unsigned long | LU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.intx_reroute | Re-route INTx interrupts when scanning devices | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.iov_max_config | Maximum allowed size of SR-IOV configuration. | unsigned long | LU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.mcfg | Enable support for PCI-e memory mapped config access | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.msix_rewrite_table | Rewrite entire MSI-X table when updating MSI-X entries | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.pcie_hp_detach_timeout | Attention Button delay for PCI-express Eject. | int64_t | Q | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.realloc_bars | Attempt to allocate a new range for any BARs whose original firmware-assigned ranges fail to allocate during the initial device scan. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.pci.usb_early_takeover | Enable early takeover of USB controllers. Disable this if you depend on BIOS emulation of USB devices, that is you use USB devices (like keyboard or mouse) but do not load USB drivers | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.physmem | Amount of physical memory (in bytes) | unsigned long | LU | RD, MPSAFE | Defined | 6. 5 | |
| hw.psm | ps/2 mouse | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.psm.elantech_support | Enable support for Elantech touchpads | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.psm.mux_disabled | Disable active multiplexing | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.psm.synaptics_support | Enable support for Synaptics touchpads | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.psm.tap_enabled | Enable tap and drag gestures | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.psm.tap_threshold | Button tap threshold | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.psm.tap_timeout | Tap timeout for touchpads | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.psm.trackpoint_support | Enable support for IBM/Lenovo TrackPoint | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.puc | puc(4) driver configuration | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.puc.msi_disable | Disable use of MSI interrupts by puc(9) | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.realmem | Amount of memory (in bytes) reported by the firmware | unsigned long | LU | RD, MPSAFE | Defined | 6. 12 | |
| hw.sdhci | sdhci driver | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.sdhci.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.sdhci.enable_msi | Enable MSI interrupts | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.sdhci.quirk_clear | Mask of quirks to clear | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.sdhci.quirk_set | Mask of quirks to set | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd | Sound driver | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.snd.basename_clone | DSP basename cloning (0: Disable; 1: Enabled) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.compat_linux_mmap | linux mmap compatibility (-1=force disable 0=auto 1=force enable) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.default_auto | assign default unit to a newly attached device | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.default_unit | default sound device | integer | I | RD, WR, ANYBODY, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.feeder_eq_exact_rate | force exact rate validation | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.feeder_eq_presets | compile-time eq presets | string | A | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.snd.feeder_rate_max | maximum allowable rate | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.feeder_rate_min | minimum allowable rate | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.feeder_rate_polyphase_max | maximum allowable polyphase entries | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.feeder_rate_presets | compile-time rate presets | string | A | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.snd.feeder_rate_quality | sample rate converter quality (0=low .. 4=high) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.feeder_rate_round | sample rate converter rounding threshold | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.latency | buffering latency (0=low ... 10=high) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.latency_profile | buffering latency profile (0=aggressive 1=safe) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.maxautovchans | maximum virtual channel | integer | I | RD, WR, TUN, NOFETCH, NEEDGIANT | Defined | 6. [dyn]. [dyn] | |
| hw.snd.report_soft_formats | report software-emulated formats | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.snd.report_soft_matrix | report software-emulated channel matrixing | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.snd.syncdelay | append (0-1000) millisecond trailing buffer delay on each sync | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.timeout | interrupt timeout (1 - 10) seconds | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.usefrags | prefer setfragments() over setblocksize() | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.vchans_enable | global virtual channel switch | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.verbose | verbosity level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.version | driver version/arch | string | A | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.snd.vpc_0db | 0db relative level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.vpc_autoreset | automatically reset channels volume to 0db | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.vpc_mixer_bypass | control channel pcm/rec volume, bypassing real mixer device | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.snd.vpc_reset | reset volume on all channels | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.spec_store_bypass_disable | Speculative Store Bypass Disable (0 - off, 1 - on, 2 - auto) | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.spec_store_bypass_disable_active | Speculative Store Bypass Disable active | integer | I | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.storvsc | Hyper-V storage interface | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.storvsc.chan_cnt | # of channels to use | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.storvsc.max_io | Hyper-V storage max io limit | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.storvsc.ringbuffer_size | Hyper-V storage ringbuffer size | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.storvsc.use_pim_unmapped | Optimize storvsc by using unmapped I/O | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.storvsc.use_win8ext_flags | Use win8 extension flags or not | unsigned integer | IU | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.syscons | syscons | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.syscons.bell | enable bell | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.syscons.kbd_debug | enable keyboard debug | integer | I | RD, WR, SECURE, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.syscons.kbd_reboot | enable keyboard reboot | integer | I | RD, WR, SECURE, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.syscons.saver | saver | node | N | RD, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.syscons.saver.keybonly | screen saver interrupted by input only | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.syscons.sc_no_suspend_vtswitch | Disable VT switch before suspend. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ttm | TTM memory manager parameters | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn] | |
| hw.ttm.dma32_pages_limit | Limit for the allocated DMA32 pages | unsigned long | LU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ttm.page_pool_size | Number of pages in the WC/UC/DMA pool | unsigned long | LU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.ttm.pages_limit | Limit for the allocated pages | unsigned long | LU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.uart_noise_threshold | Number of UART RX interrupts where TX is not ready, before data is discarded | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn] | |
| hw.usb | USB debugging | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn] | |
| hw.usb.ctrl | USB controller | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.ctrl.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.dev | USB device | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.dev.debug | Debug Level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.disable_enumeration | Set to disable all USB device enumeration. This can secure against USB devices turning evil, for example a USB memory stick becoming a USB keyboard. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.disable_port_power | Set to disable all USB port power. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.ehci | USB ehci | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.ehci.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ehci.iaadbug | Enable doorbell bug workaround | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ehci.lostintrbug | Enable lost interrupt bug workaround | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ehci.no_hs | Disable High Speed USB | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.full_ddesc | USB always read complete device descriptor, if set | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.no_boot_wait | No USB device enumerate waiting at boot. | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.no_cs_fail | USB clear stall failures are ignored, if set | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.no_shutdown_wait | No USB device waiting at system shutdown. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.no_suspend_wait | No USB device waiting at system suspend. | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.ohci | USB ohci | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.ohci.debug | ohci debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.power_timeout | USB power timeout | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.proc | USB process | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.proc.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.template | Selected USB device side template | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.timings | Timings | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.timings.enum_nice_time | Enumeration thread nice time | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.extra_power_up_time | Extra PowerUp Time | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.port_powerup_delay | Port PowerUp Delay | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.port_reset_delay | Port Reset Delay | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.port_reset_recovery | Port Reset Recovery | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.port_resume_delay | Port Resume Delay | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.port_root_reset_delay | Root Port Reset Delay | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.resume_delay | Resume Delay | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.resume_recovery | Resume Recovery | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.resume_wait | Resume Wait | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.timings.set_address_settle | Set Address Settle | unsigned integer | IU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uaudio | USB uaudio | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.uaudio.buffer_ms | uaudio buffering delay in milliseconds, from 1 to 8 | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uaudio.default_bits | uaudio default sample bits | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uaudio.default_channels | uaudio default sample channels | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uaudio.default_rate | uaudio default sample rate | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uaudio.handle_hid | uaudio handles any HID volume/mute keys, if set | uint8_t | CU | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ucom | USB ucom | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.ucom.cons_baud | console baud rate | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ucom.cons_subunit | console subunit number | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ucom.cons_unit | console unit number | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ucom.debug | ucom debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ucom.device_mode_console | set to 1 to mark terminals as consoles when in device mode | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ucom.pps_mode | pulse capture mode: 0/1/2=disabled/CTS/DCD; add 0x10 to invert | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ugen | USB generic | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.ugen.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uhci | USB uhci | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.uhci.debug | uhci debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uhci.loop | uhci noloop | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uhid | USB uhid | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.uhid.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.uhub | USB HUB | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.uhub.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ukbd | USB keyboard | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.ukbd.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ukbd.no_leds | Disables setting of keyboard leds | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ukbd.pollrate | Force this polling rate, 1-1000Hz | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ulpt | USB ulpt | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.ulpt.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.umass | USB umass | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.umass.debug | umass debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.umass.throttle | Forced delay between commands in milliseconds | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.umodem | USB umodem | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.umodem.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.ums | USB ums | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.ums.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.usb_lang_id | Preferred USB language ID | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.usb_lang_mask | Preferred USB language mask | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.usb.usbhid | USB usbhid | node | N | RD, WR | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.usbhid.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.usbhid.enable | Enable usbhid and prefer it to other USB HID drivers | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.wmt | USB MSWindows 7/8/10 compatible Multi-touch Device | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.wmt.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.wmt.timestamps | Enable hardware timestamp reporting | uint8_t | CU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.xhci | USB XHCI | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.usb.xhci.ctlquirk | Set to enable control endpoint quirk | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.xhci.ctlstep | Set to enable control endpoint status stage stepping | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.xhci.dcepquirk | Set to disable endpoint deconfigure command | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.xhci.debug | Debug level | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.xhci.dma32 | Set to only use 32-bit DMA for the XHCI controller | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.xhci.streams | Set to enable streams mode support | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.xhci.use_polling | Set to enable software interrupt polling for the XHCI controller | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usb.xhci.xhci_port_route | Routing bitmap for switching EHCI ports to the XHCI controller | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.usermem | Amount of memory (in bytes) which is not wired | unsigned long | LU | RD, MPSAFE | Defined | 6. 6 | |
| hw.via_feature_rng | VIA RNG feature available in CPU | unsigned integer | IU | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.via_feature_xcrypt | VIA xcrypt feature available in CPU | unsigned integer | IU | RD, MPSAFE | Defined | 6. [dyn] | |
| hw.vmbus | Hyper-V vmbus | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.vmbus.pin_evttask | Pin event tasks to their respective CPU | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmbus.tlb_hcall | Use Hyper_V hyercall for tlb flush | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmd | Intel Volume Management Device tuning parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.vmd.bypass_msi | Bypass MSI remapping on capable hardware | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmd.max_msi | Maximum number of MSI vectors per device | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmd.max_msix | Maximum number of MSI-X vectors per device | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmm | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn] | ||
| hw.vmm.amdvi | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.vmm.amdvi.count | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.amdvi.disable_io_fault | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.amdvi.domain_id | unsigned integer | IU | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.amdvi.enable | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.amdvi.host_ptp | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.amdvi.ptp_level | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.bhyve_xcpuids | Number of times an unknown cpuid leaf was accessed | unsigned long | LU | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.vmm.create | string | A | RD, WR, PRISON, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.vmm.destroy | string | A | RD, WR, PRISON, MPSAFE | Defined | 6. [dyn]. [dyn] | ||
| hw.vmm.ept | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.vmm.ept.pmap_flags | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.halt_detection | Halt VM if all vcpus execute HLT with interrupts disabled | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmm.iommu | bhyve iommu parameters | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.vmm.iommu.enable | Enable use of I/O MMU (required for PCI passthrough). | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vmm.iommu.initialized | bhyve iommu initialized? | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vmm.ipinum | IPI vector used for vcpu notifications | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.vmm.maxcpu | Maximum number of vCPUs | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmm.npt | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.vmm.npt.pmap_flags | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.ppt | bhyve passthru devices | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | |
| hw.vmm.ppt.devices | number of pci passthru devices | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vmm.svm | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.vmm.svm.disable_npf_assist | integer | I | RD, WR, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.svm.features | SVM features advertised by CPUID.8000000AH:EDX | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vmm.svm.num_asids | Number of ASIDs supported by this processor | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vmm.svm.vmcb_clean | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.topology | node | N | RD, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.vmm.topology.cpuid_leaf_b | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.trace_guest_exceptions | Trap into hypervisor on all guest exceptions and reflect them back | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmm.trap_wbinvd | WBINVD triggers a VM-exit | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vmm.vmx | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.vmm.vmx.cap | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.vmx.cap.halt_exit | HLT triggers a VM-exit | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.invpcid | Guests are allowed to use INVPCID | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.monitor_trap | Monitor trap flag | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.pause_exit | PAUSE triggers a VM-exit | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.posted_interrupts | APICv posted interrupt support | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.rdpid | Guests are allowed to use RDPID | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.rdtscp | Guests are allowed to use RDTSCP | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.tpr_shadowing | TPR shadowing support | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.unrestricted_guest | Unrestricted guests | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.virtual_interrupt_delivery | APICv virtual interrupt delivery support | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cap.wbinvd_exit | WBINVD triggers a VM-exit | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.cr0_ones_mask | unsigned long | LU | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.vmx.cr0_zeros_mask | unsigned long | LU | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.vmx.cr4_ones_mask | unsigned long | LU | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.vmx.cr4_zeros_mask | unsigned long | LU | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.vmx.initialized | Intel VMX initialized | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.l1d_flush | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.vmx.l1d_flush_sw | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.vmx.no_flush_rsb | Do not flush RSB upon vmexit | integer | I | RD, WR, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.posted_interrupt_vector | APICv posted interrupt vector | integer | I | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vmm.vmx.vpid_alloc_failed | unsigned integer | IU | RD, MPSAFE | Defined | 6. [dyn]. [dyn]. [dyn] | ||
| hw.vmm.vrtc | node | N | RD, WR, MPSAFE | Undefined | 6. [dyn]. [dyn] | ||
| hw.vmm.vrtc.flag_broken_time | Stop guest when invalid RTC time is detected | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn]. [dyn] | |
| hw.vtnet | VirtIO Net driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.vtnet.altq_disable | Disables ALTQ Support | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.csum_disable | Disables receive and send checksum offload | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.fixup_needs_csum | Calculate valid checksum for NEEDS_CSUM packets | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.lro_disable | Disables hardware LRO | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.lro_entry_count | Software LRO entry count | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.lro_mbufq_depth | Depth of software LRO mbuf queue | unsigned integer | IU | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.mq_disable | Disables multiqueue support | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.mq_max_pairs | Maximum number of multiqueue pairs | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.rx_process_limit | Number of RX segments processed in one pass | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.tso_disable | Disables TSO | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.vtnet.tso_maxlen | TSO burst limit | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] | |
| hw.watchdog | Main watchdog device | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.watchdog.wd_last_u | Watchdog last update time | unsigned integer | IU | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.watchdog.wd_last_u_secs | Watchdog last update time | unsigned integer | IU | RD, MPSAFE | Defined | 6. [dyn]. [dyn] | |
| hw.xbd | xbd driver parameters | node | N | RD, MPSAFE | Undefined | 6. [dyn] | |
| hw.xbd.xbd_enable_indirect | Enable xbd indirect segments | integer | I | RD, TUN, MPSAFE, NOFETCH | Defined | 6. [dyn]. [dyn] |