#
# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
#
# This file contains machine dependent kernel configuration notes. For
# machine independent notes, look in /sys/conf/NOTES.
#
#
#
# Enable the kernel DTrace hooks which are required to load the DTrace
# kernel modules.
#
options KDTRACE_HOOKS
# DTrace core
# NOTE: introduces CDDL-licensed components into the kernel
#device dtrace
# DTrace modules
#device dtrace_profile
#device dtrace_sdt
#device dtrace_fbt
#device dtrace_systrace
#device dtrace_prototype
#device dtnfscl
#device dtmalloc
# Alternatively include all the DTrace modules
#device dtraceall
#####################################################################
# SMP OPTIONS:
#
# Notes:
#
# IPI_PREEMPTION instructs the kernel to preempt threads running on other
# CPUS if needed. Relies on the PREEMPTION option
# Optional:
options IPI_PREEMPTION
device atpic # Optional legacy pic support
device mptable # Optional MPSPEC mptable support
# Debugging options.
#
options COUNT_XINVLTLB_HITS # Counters for TLB events
options COUNT_IPIS # Per-CPU IPI interrupt counters
#####################################################################
# CPU OPTIONS
#
# You must specify at least one CPU (the one you intend to run on);
# deleting the specification for CPUs you don't need to use may make
# parts of the system run faster.
#
cpu HAMMER # aka K8, aka Opteron & Athlon64
#
# Options for CPU features.
#
#####################################################################
# NETWORKING OPTIONS
#
# DEVICE_POLLING adds support for mixed interrupt-polling handling
# of network device drivers, which has significant benefits in terms
# of robustness to overloads and responsivity, as well as permitting
# accurate scheduling of the CPU time between kernel network processing
# and other activities. The drawback is a moderate (up to 1/HZ seconds)
# potential increase in response times.
# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
# to achieve smoother behaviour.
# Additionally, you can enable/disable polling at runtime with help of
# the ifconfig(8) utility, and select the CPU fraction reserved to
# userland with the sysctl variable kern.polling.user_frac
# (default 50, range 0..100).
#
# Not all device drivers support this mode of operation at the time of
# this writing. See polling(4) for more details.
options DEVICE_POLLING
# BPF_JITTER adds support for BPF just-in-time compiler.
options BPF_JITTER
# OpenFabrics Enterprise Distribution (Infiniband).
options OFED
options OFED_DEBUG_INIT
# Sockets Direct Protocol
options SDP
options SDP_DEBUG
# IP over Infiniband
options IPOIB
options IPOIB_DEBUG
options IPOIB_CM
#####################################################################
# CLOCK OPTIONS
# Provide read/write access to the memory in the clock chip.
device nvram # Access to rtc cmos via /dev/nvram
#####################################################################
# MISCELLANEOUS DEVICES AND OPTIONS
device speaker #Play IBM BASIC-style noises out your speaker
envvar hint.speaker.0.at="isa"
envvar hint.speaker.0.port="0x61"
#####################################################################
# HARDWARE BUS CONFIGURATION
#
# ISA bus
#
device isa
#
# Options for `isa':
#
# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
# interrupt controller. This saves about 0.7-1.25 usec for each interrupt.
# This option breaks suspend/resume on some portables.
#
# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
# interrupt controller. This saves about 0.7-1.25 usec for each interrupt.
# Automatic EOI is documented not to work for the slave with the
# original i8259A, but it works for some clones and some integrated
# versions.
#
# MAXMEM specifies the amount of RAM on the machine; if this is not
# specified, FreeBSD will first read the amount of memory from the CMOS
# RAM, so the amount of memory will initially be limited to 64MB or 16MB
# depending on the BIOS. If the BIOS reports 64MB, a memory probe will
# then attempt to detect the installed amount of RAM. If this probe
# fails to detect >64MB RAM you will have to use the MAXMEM option.
# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
# be 131072 (128 * 1024).
#
# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
# reset the CPU for reboot. This is needed on some systems with broken
# keyboard controllers.
options AUTO_EOI_1
#options AUTO_EOI_2
options MAXMEM=(128*1024)
#options BROKEN_KEYBOARD_RESET
#
# AGP GART support
device agp
#
# AGP debugging.
#
options AGP_DEBUG
#####################################################################
# HARDWARE DEVICE CONFIGURATION
# To include support for VGA VESA video modes
options VESA
# Turn on extra debugging checks and output for VESA support.
options VESA_DEBUG
device dpms # DPMS suspend & resume via VESA BIOS
# x86 real mode BIOS emulator, required by atkbdc/dpms/vesa
options X86BIOS
#
# Optional devices:
#
# PS/2 mouse
device psm
envvar hint.psm.0.at="atkbdc"
envvar hint.psm.0.irq="12"
# Options for psm:
options PSM_HOOKRESUME #hook the system resume event, useful
#for some laptops
options PSM_RESETAFTERSUSPEND #reset the device at the resume event
# The keyboard controller; it controls the keyboard and the PS/2 mouse.
device atkbdc
envvar hint.atkbdc.0.at="isa"
envvar hint.atkbdc.0.port="0x060"
# The AT keyboard
device atkbd
envvar hint.atkbd.0.at="atkbdc"
envvar hint.atkbd.0.irq="1"
# Options for atkbd:
options ATKBD_DFLT_KEYMAP # specify the built-in keymap
makeoptions ATKBD_DFLT_KEYMAP=fr.dvorak
# `flags' for atkbd:
# 0x01 Force detection of keyboard, else we always assume a keyboard
# 0x02 Don't reset keyboard, useful for some newer ThinkPads
# 0x03 Force detection and avoid reset, might help with certain
# dockingstations
# 0x04 Old-style (XT) keyboard support, useful for older ThinkPads
# Video card driver for VGA adapters.
device vga
envvar hint.vga.0.at="isa"
# Options for vga:
# Try the following option if the mouse pointer is not drawn correctly
# or font does not seem to be loaded properly. May cause flicker on
# some systems.
options VGA_ALT_SEQACCESS
# If you can dispense with some vga driver features, you may want to
# use the following options to save some memory.
#options VGA_NO_FONT_LOADING # don't save/load font
#options VGA_NO_MODE_CHANGE # don't change video modes
# Older video cards may require this option for proper operation.
options VGA_SLOW_IOACCESS # do byte-wide i/o's to TS and GDC regs
# The following option probably won't work with the LCD displays.
options VGA_WIDTH90 # support 90 column modes
# Debugging.
options VGA_DEBUG
# vt(4) drivers.
device vt_vga # VGA
device vt_efifb # EFI framebuffer
device vt_vbefb # VBE framebuffer
# Linear framebuffer driver for S3 VESA 1.2 cards. Works on top of VESA.
device s3pci
# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create
# the /dev/3dfx0 device to work with glide implementations. This should get
# linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as
# the tdfx DRI module from XFree86 and is completely unrelated.
#
device tdfx # Enable 3Dfx Voodoo support
#
# ACPI support using the Intel ACPI Component Architecture reference
# implementation.
#
# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer
# kernel environment variables to select initial debugging levels for the
# Intel ACPICA code. (Note that the Intel code must also have USE_DEBUGGER
# defined when it is built).
device acpi
options ACPI_DEBUG
# The cpufreq(4) driver provides support for non-ACPI CPU frequency control
device cpufreq
#
# Network interfaces:
#
# axp: AMD EPYC integrated NIC
# Requires the miibus module
# bxe: Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
# adapters.
# ice: Intel 800 Series Physical Function
# Requires the ice_ddp module for full functionality
# igc: Intel I225 2.5Gb Ethernet adapter
# ipw: Intel PRO/Wireless 2100 IEEE 802.11 adapter
# Requires the ipw firmware module
# irdma: Intel 800 Series RDMA driver
# Requires the ice module
# iwi: Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters
# Requires the iwi firmware module
# iwn: Intel Wireless WiFi Link 1000/105/135/2000/4965/5000/6000/6050 abgn
# 802.11 network adapters
# Requires the iwn firmware module
# mthca: Mellanox HCA InfiniBand
# mlx4ib: Mellanox ConnectX HCA InfiniBand
# mlx4en: Mellanox ConnectX HCA Ethernet
# nfe: nVidia nForce MCP on-board Ethernet Networking (BSD open source)
# qlxgb: QLogic 3200 and 8200 series 10 Gigabit Ethernet & CNA Adapter
# qlxgbe: QLogic 8300 series 10 Gigabit Ethernet & CNA Adapter
# qlxge: QLogic 8100 series 10 Gigabit Ethernet & CNA Adapter
# qlnxe: Cavium QLogic 41000/45000 series 10/25/40/100 Gigabit Ethernet & CNA Adapter
# sfxge: Solarflare SFC9000 family 10Gb Ethernet adapters
# vmx: VMware VMXNET3 Ethernet (BSD open source)
# wpi: Intel 3945ABG Wireless LAN controller
# Requires the wpi firmware module
device axp # AMD EPYC integrated NIC
device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
device igc # Intel I225 2.5G Ethernet
device ipw # Intel 2100 wireless NICs.
device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
device iwn # Intel 4965/1000/5000/6000 wireless NICs.
device ixl # Intel 700 Series Physical Function
device iavf # Intel Adaptive Virtual Function
device ice # Intel 800 Series Physical Function
device ice_ddp # Intel 800 Series DDP Package
device irdma # Intel 800 Series RDMA driver
device mthca # Mellanox HCA InfiniBand
device mlx4 # Shared code module between IB and Ethernet
device mlx4ib # Mellanox ConnectX HCA InfiniBand
device mlx4en # Mellanox ConnectX HCA Ethernet
device nfe # nVidia nForce MCP on-board Ethernet
device qlxgb # QLogic 3200/8200 Ethernet
device qlxgbe # QLogic 8300 Ethernet
device qlxge # QLogic 8100 Ethernet
device qlnxe # QLogic 41000/45000 Ethernet
device sfxge # Solarflare SFC9000 10Gb Ethernet
device vmx # VMware VMXNET3 Ethernet
device wpi # Intel 3945ABG wireless NICs.
# IEEE 802.11 adapter firmware modules
# Intel PRO/Wireless 2100 firmware:
# ipwfw: BSS/IBSS/monitor mode firmware
# ipwbssfw: BSS mode firmware
# ipwibssfw: IBSS mode firmware
# ipwmonitorfw: Monitor mode firmware
# Intel PRO/Wireless 2200BG/2225BG/2915ABG firmware:
# iwifw: BSS/IBSS/monitor mode firmware
# iwibssfw: BSS mode firmware
# iwiibssfw: IBSS mode firmware
# iwimonitorfw: Monitor mode firmware
# Intel Wireless WiFi Link 4965/1000/5000/6000 series firmware:
# iwnfw: Single module to support all devices
# iwn1000fw: Specific module for the 1000 only
# iwn105fw: Specific module for the 105 only
# iwn135fw: Specific module for the 135 only
# iwn2000fw: Specific module for the 2000 only
# iwn2030fw: Specific module for the 2030 only
# iwn4965fw: Specific module for the 4965 only
# iwn5000fw: Specific module for the 5000 only
# iwn5150fw: Specific module for the 5150 only
# iwn6000fw: Specific module for the 6000 only
# iwn6000g2afw: Specific module for the 6000g2a only
# iwn6000g2bfw: Specific module for the 6000g2b only
# iwn6050fw: Specific module for the 6050 only
# wpifw: Intel 3945ABG Wireless LAN Controller firmware
device iwifw
device iwibssfw
device iwiibssfw
device iwimonitorfw
device ipwfw
device ipwbssfw
device ipwibssfw
device ipwmonitorfw
device iwnfw
device iwn1000fw
device iwn105fw
device iwn135fw
device iwn2000fw
device iwn2030fw
device iwn4965fw
device iwn5000fw
device iwn5150fw
device iwn6000fw
device iwn6000g2afw
device iwn6000g2bfw
device iwn6050fw
device wpifw
# net80211 options
options IEEE80211_DEBUG_REFCNT
#
# Non-Transparent Bridge (NTB) drivers
#
device if_ntb # Virtual NTB network interface
device ntb_transport # NTB packet transport driver
device ntb # NTB hardware interface
device ntb_hw_amd # AMD NTB hardware driver
device ntb_hw_intel # Intel NTB hardware driver
device ntb_hw_plx # PLX NTB hardware driver
#
#XXX this stores pointers in a 32bit field that is defined by the hardware
#device pst
#
# Areca 11xx and 12xx series of SATA II RAID controllers.
# CAM is required.
#
device arcmsr # Areca SATA II RAID
#
# Microsemi smartpqi controllers.
# These controllers have a SCSI-like interface, and require the
# CAM infrastructure.
#
device smartpqi
#
# Adaptec FSA RAID controllers, including integrated DELL controllers,
# the Dell PERC 2/QC and the HP NetRAID-4M
device aac
device aacp # SCSI Passthrough interface (optional, CAM required)
#
# Highpoint RocketRAID 27xx.
device hpt27xx
#
# Highpoint RocketRAID 182x.
device hptmv
#
# Highpoint DC7280 and R750.
device hptnr
#
# Highpoint RocketRAID. Supports RR172x, RR222x, RR2240, RR232x, RR2340,
# RR2210, RR174x, RR2522, RR231x, RR230x.
device hptrr
#
# Highpoint RocketRaid 3xxx series SATA RAID
device hptiop
#
# IBM (now Adaptec) ServeRAID controllers
device ips
#
# Intel integrated Memory Controller (iMC) SMBus controller
# Sandybridge-Xeon, Ivybridge-Xeon, Haswell-Xeon, Broadwell-Xeon
device imcsmb
#
# Intel C600 (Patsburg) integrated SAS controller
device isci
options ISCI_LOGGING # enable debugging in isci HAL
#
# NVM Express (NVMe) support
device nvme # base NVMe driver
device nvd # expose NVMe namespaces as disks, depends on nvme
#
# Intel Volume Management Device (VMD) support
device vmd
#
# PMC-Sierra SAS/SATA controller
device pmspcv
#
# Intel QuickAssist driver with OpenCrypto support
#
# Only for legacy Atom C2XXX chipsets.
device qat_c2xxx
#
# SafeNet crypto driver: can be moved to the MI NOTES as soon as
# it's tested on a big-endian machine
#
device safe # SafeNet 1141
options SAFE_DEBUG # enable debugging support: hw.safe.debug
options SAFE_RNDTEST # enable rndtest support
#
# VirtIO support
#
# The virtio entry provides a generic bus for use by the device drivers.
# It must be combined with an interface that communicates with the host.
# Multiple such interfaces are defined by the VirtIO specification. FreeBSD
# only has support for PCI. Therefore, virtio_pci must be statically
# compiled in or loaded as a module for the device drivers to function.
#
device virtio # Generic VirtIO bus (required)
device virtio_pci # VirtIO PCI Interface
device vtnet # VirtIO Ethernet device
device virtio_blk # VirtIO Block device
device virtio_scsi # VirtIO SCSI device
device virtio_balloon # VirtIO Memory Balloon device
device virtio_random # VirtIO Entropy device
device virtio_console # VirtIO Console device
# Linux KVM paravirtualization support
device kvm_clock # KVM paravirtual clock driver
# Google Virtual NIC
device gve # Google Virtual NIC (gVNIC) driver
# Microsoft Hyper-V enhancement support
device hyperv # HyperV drivers
device hvhid # HyperV HID device
# Xen HVM Guest Optimizations
options XENHVM # Xen HVM kernel infrastructure
device xenefi # Xen EFI timer device
device xenpci # Xen HVM Hypervisor services driver
device xentimer # Xen x86 PV timer device
#####################################################################
#
# Miscellaneous hardware:
#
# ipmi: Intelligent Platform Management Interface
# pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724)
# smbios: DMI/SMBIOS entry point (requires EFIRT option)
# vpd: Vital Product Data kernel interface
# asmc: Apple System Management Controller
# si: Specialix International SI/XIO or SX intelligent serial card
# tpm: Trusted Platform Module
# Notes on the Specialix SI/XIO driver:
# The host card is memory, not IO mapped.
# The Rev 1 host cards use a 64K chunk, on a 32K boundary.
# The Rev 2 host cards use a 32K chunk, on a 32K boundary.
# The cards can use an IRQ of 11, 12 or 15.
device ipmi
device pbio
envvar hint.pbio.0.at="isa"
envvar hint.pbio.0.port="0x360"
device smbios
device vpd
device asmc
device tpm
device padlock_rng # VIA Padlock RNG
device rdrand_rng # Intel Bull Mountain RNG
device aesni # AES-NI OpenCrypto module
device ossl # OpenSSL OpenCrypto module
device ioat # Intel I/OAT DMA engine
#
# Laptop/Notebook options:
#
device backlight
#
# I2C Bus
#
#
# Hardware watchdog timers:
#
# ichwd: Intel ICH watchdog timer
# amdsbwd: AMD SB7xx watchdog timer
# viawd: VIA south bridge watchdog timer
# wbwd: Winbond watchdog timer
# itwd: ITE Super I/O watchdog timer
#
device ichwd
device amdsbwd
device viawd
device wbwd
device itwd
#
# Temperature sensors:
#
# coretemp: on-die sensor on Intel Core and newer CPUs
# amdtemp: on-die sensor on AMD K8/K10/K11 CPUs
#
device coretemp
device amdtemp
#
# CPU control pseudo-device. Provides access to MSRs, CPUID info and
# microcode update feature.
#
device cpuctl
#
# SuperIO driver.
#
device superio
#
# System Management Bus (SMB)
#
options ENABLE_ALART # Control alarm on Intel intpm driver
#
# AMD System Management Network (SMN)
#
device amdsmn
#
# Number of initial kernel page table pages used for early bootstrap.
# This number should include enough pages to map the kernel and any
# modules or other data loaded with the kernel by the loader. Each
# page table page maps 2MB.
#
options NKPT=31
# EFI Runtime Services support
options EFIRT
#
# HID-over-I2C support
#
device iichid # HID-over-I2C support
options IICHID_DEBUG # Enable HID-over-I2C debug messages
options IICHID_SAMPLING # Workaround missing GPIO INTR support
#####################################################################
# ABI Emulation
#XXX keep these here for now and reactivate when support for emulating
#XXX these 32 bit binaries is added.
# Enable 32-bit runtime support for FreeBSD/i386 binaries.
options COMPAT_FREEBSD32
# Enable (32-bit) a.out binary support
options COMPAT_AOUT
#####################################################################
# ZFS support
# NB: This depends on crypto, cryptodev and ZSTDIO
options ZFS
#####################################################################
# VM OPTIONS
# KSTACK_PAGES is the number of memory pages to assign to the kernel
# stack of each thread.
options KSTACK_PAGES=5
# Enable detailed accounting by the PV entry allocator.
options PV_STATS
#####################################################################
# More undocumented options for linting.
# Note that documenting these are not considered an affront.
options KBDIO_DEBUG=2
options KBD_MAXRETRY=4
options KBD_MAXWAIT=6
options KBD_RESETDELAY=201
options PSM_DEBUG=1
options TIMER_FREQ=((14318182+6)/12)
options VM_KMEM_SIZE
options VM_KMEM_SIZE_MAX
options VM_KMEM_SIZE_SCALE
# GCOV (code coverage) support
options LINDEBUGFS
options GCOV
plain