2 # GENERIC -- Generic kernel configuration file for FreeBSD/i386
4 # For more information on this file, please read the config(5) manual page,
5 # and/or the handbook section on Kernel Configuration Files:
7 # https://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
9 # The handbook is also available locally in /usr/share/doc/handbook
10 # if you've installed the doc distribution, otherwise always see the
11 # FreeBSD World Wide Web server (https://www.FreeBSD.org/) for the
14 # An exhaustive list of options and more detailed explanations of the
15 # device lines is also present in the ../../conf/NOTES and NOTES files.
16 # If you are in doubt as to the purpose or necessity of a line, check first
26 makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
27 makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support
29 options SCHED_ULE # ULE scheduler
30 options PREEMPTION # Enable kernel thread preemption
31 options VIMAGE # Subsystem virtualization, e.g. VNET
32 options INET # InterNETworking
33 options INET6 # IPv6 communications protocols
34 options IPSEC # IP (v4/v6) security
35 options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
36 options TCP_HHOOK # hhook(9) framework for TCP
37 options TCP_OFFLOAD # TCP offload
38 options SCTP # Stream Control Transmission Protocol
39 options FFS # Berkeley Fast Filesystem
40 options SOFTUPDATES # Enable FFS soft updates support
41 options UFS_ACL # Support for access control lists
42 options UFS_DIRHASH # Improve performance on big directories
43 options UFS_GJOURNAL # Enable gjournal-based UFS journaling
44 options QUOTA # Enable disk quotas for UFS
45 options MD_ROOT # MD is a potential root device
46 options NFSCL # Network Filesystem Client
47 options NFSD # Network Filesystem Server
48 options NFSLOCKD # Network Lock Manager
49 options NFS_ROOT # NFS usable as /, requires NFSCL
50 options MSDOSFS # MSDOS Filesystem
51 options CD9660 # ISO 9660 Filesystem
52 options PROCFS # Process filesystem (requires PSEUDOFS)
53 options PSEUDOFS # Pseudo-filesystem framework
54 options GEOM_RAID # Soft RAID functionality.
55 options GEOM_LABEL # Provides labelization
56 options COMPAT_FREEBSD4 # Compatible with FreeBSD4
57 options COMPAT_FREEBSD5 # Compatible with FreeBSD5
58 options COMPAT_FREEBSD6 # Compatible with FreeBSD6
59 options COMPAT_FREEBSD7 # Compatible with FreeBSD7
60 options COMPAT_FREEBSD9 # Compatible with FreeBSD9
61 options COMPAT_FREEBSD10 # Compatible with FreeBSD10
62 options COMPAT_FREEBSD11 # Compatible with FreeBSD11
63 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
64 options KTRACE # ktrace(1) support
65 options STACK # stack(9) support
66 options SYSVSHM # SYSV-style shared memory
67 options SYSVMSG # SYSV-style message queues
68 options SYSVSEM # SYSV-style semaphores
69 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
70 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
71 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
72 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
73 options AUDIT # Security event auditing
74 options CAPABILITY_MODE # Capsicum capability mode
75 options CAPABILITIES # Capsicum capabilities
76 options MAC # TrustedBSD MAC Framework
77 options KDTRACE_HOOKS # Kernel DTrace hooks
78 options DDB_CTF # Kernel ELF linker loads CTF data
79 options INCLUDE_CONFIG_FILE # Include this file in kernel
80 options RACCT # Resource accounting framework
81 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
82 options RCTL # Resource limits
84 # Debugging support. Always need this:
85 options KDB # Enable kernel debugger support.
86 options KDB_TRACE # Print a stack trace for a panic.
87 # For full debugger support use (turn off in stable branch):
88 options DDB # Support DDB.
89 options GDB # Support remote GDB.
90 options DEADLKRES # Enable the deadlock resolver
91 options INVARIANTS # Enable calls of extra sanity checking
92 options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
93 options WITNESS # Enable checks to detect deadlocks and cycles
94 options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
95 options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
96 options VERBOSE_SYSINIT=0 # Support debug.verbose_sysinit, off by default
98 # Kernel dump features.
99 options EKCD # Support for encrypted kernel dumps
100 options GZIO # gzip-compressed kernel and user dumps
101 options ZSTDIO # zstd-compressed kernel and user dumps
102 options NETDUMP # netdump(4) client support
104 # To make an SMP kernel, the next two lines are needed
105 options SMP # Symmetric MultiProcessor Kernel
106 device apic # I/O APIC
107 options EARLY_AP_STARTUP
109 # CPU frequency control
115 options PCI_HP # PCI-Express native HotPlug
116 options PCI_IOV # PCI SR-IOV support
122 device ahci # AHCI-compatible SATA controllers
123 device ata # Legacy ATA/SATA controllers
124 device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
125 device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA
128 device ahc # AHA2940 and onboard AIC7xxx devices
129 device esp # AMD Am53C974 (Tekram DC-390(T))
130 device hptiop # Highpoint RocketRaid 3xxx series
131 device isp # Qlogic family
132 #device ispfw # Firmware for QLogic HBAs- normally a module
133 device mpt # LSI-Logic MPT-Fusion
134 device mps # LSI-Logic MPT-Fusion 2
135 device mpr # LSI-Logic MPT-Fusion 3
136 device sym # NCR/Symbios Logic
137 device trm # Tekram DC395U/UW/F DC315U adapters
138 device isci # Intel C600 SAS controller
140 # ATA/SCSI peripherals
141 device scbus # SCSI bus (required for ATA/SCSI)
142 device ch # SCSI media changers
143 device da # Direct Access (disks)
144 device sa # Sequential Access (tape etc)
146 device pass # Passthrough device (direct ATA/SCSI access)
147 device ses # Enclosure Services (SES and SAF-TE)
148 #device ctl # CAM Target Layer
150 # RAID controllers interfaced to the SCSI subsystem
151 device amr # AMI MegaRAID
152 device arcmsr # Areca SATA II RAID
153 device ciss # Compaq Smart RAID 5*
154 device hptmv # Highpoint RocketRAID 182x
155 device hptnr # Highpoint DC7280, R750
156 device hptrr # Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
157 device hpt27xx # Highpoint RocketRAID 27xx
158 device iir # Intel Integrated RAID
159 device ips # IBM (Adaptec) ServeRAID
160 device mly # Mylex AcceleRAID/eXtremeRAID
161 device twa # 3ware 9000 series PATA/SATA RAID
162 device tws # LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
165 device aac # Adaptec FSA RAID
166 device aacp # SCSI passthrough for aac (requires CAM)
167 device aacraid # Adaptec by PMC RAID
168 device ida # Compaq Smart RAID
169 device mfi # LSI MegaRAID SAS
170 device mlx # Mylex DAC960 family
171 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
172 device pmspcv # PMC-Sierra SAS/SATA Controller driver
173 device pst # Promise Supertrak SX6000
174 device twe # 3ware ATA RAID
176 # NVM Express (NVMe) support
177 device nvme # base NVMe driver
178 device nvd # expose NVMe namespace as disks, depends on nvme
180 # atkbdc0 controls both the keyboard and the PS/2 mouse
181 device atkbdc # AT keyboard controller
182 device atkbd # AT keyboard
183 device psm # PS/2 mouse
185 device kbdmux # keyboard multiplexer
187 device vga # VGA video card driver
188 options VESA # Add support for VESA BIOS Extensions (VBE)
190 device splash # Splash screen and screen saver support
192 # syscons is the default console driver, resembling an SCO console
194 options SC_PIXEL_MODE # add support for the raster text mode
196 # vt is the new video console driver
200 device agp # support several AGP chipsets
202 # Power management support (see NOTES for more options)
205 # PCCARD (PCMCIA) support
206 # PCMCIA and cardbus bridge support
207 device cbb # cardbus (yenta) bridge
208 device pccard # PC Card (16-bit) bus
209 device cardbus # CardBus (32-bit) bus
212 device uart # Generic UART driver
216 device ppbus # Parallel port bus (required)
218 device ppi # Parallel port interface device
219 #device vpo # Requires scbus and da
221 device puc # Multi I/O cards and multi-channel UARTs
224 device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
225 device de # DEC/Intel DC21x4x (``Tulip'')
226 device em # Intel PRO/1000 Gigabit Ethernet Family
227 device le # AMD Am7900 LANCE and Am79C9xx PCnet
228 device ti # Alteon Networks Tigon I/II gigabit Ethernet
229 device txp # 3Com 3cR990 (``Typhoon'')
230 device vx # 3Com 3c590, 3c595 (``Vortex'')
232 # PCI Ethernet NICs that use the common MII bus controller code.
233 # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
234 device miibus # MII bus support
235 device ae # Attansic/Atheros L2 FastEthernet
236 device age # Attansic/Atheros L1 Gigabit Ethernet
237 device alc # Atheros AR8131/AR8132 Ethernet
238 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
239 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
240 device bfe # Broadcom BCM440x 10/100 Ethernet
241 device bge # Broadcom BCM570xx Gigabit Ethernet
242 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
243 device dc # DEC/Intel 21143 and various workalikes
244 device et # Agere ET1310 10/100/Gigabit Ethernet
245 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
246 device gem # Sun GEM/Sun ERI/Apple GMAC
247 device hme # Sun HME (Happy Meal Ethernet)
248 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
249 device lge # Level 1 LXT1001 gigabit Ethernet
250 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
251 device nfe # nVidia nForce MCP on-board Ethernet
252 device nge # NatSemi DP83820 gigabit Ethernet
253 device pcn # AMD Am79C97x PCI 10/100 (precedence over 'le')
254 device re # RealTek 8139C+/8169/8169S/8110S
255 device rl # RealTek 8129/8139
256 device sf # Adaptec AIC-6915 (``Starfire'')
257 device sge # Silicon Integrated Systems SiS190/191
258 device sis # Silicon Integrated Systems SiS 900/SiS 7016
259 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
260 device ste # Sundance ST201 (D-Link DFE-550TX)
261 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
262 device tl # Texas Instruments ThunderLAN
263 device tx # SMC EtherPower II (83c170 ``EPIC'')
264 device vge # VIA VT612x gigabit Ethernet
265 device vr # VIA Rhine, Rhine II
266 device vte # DM&P Vortex86 RDC R6040 Fast Ethernet
267 device wb # Winbond W89C840F
268 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
270 # ISA Ethernet NICs. pccard NICs included.
271 device cs # Crystal Semiconductor CS89x0 NIC
272 # 'device ed' requires 'device miibus'
273 device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
274 device ex # Intel EtherExpress Pro/10 and Pro/10+
275 device ep # Etherlink III based cards
276 device fe # Fujitsu MB8696x based cards
277 device sn # SMC's 9000 series of Ethernet chips
278 device xe # Xircom pccard Ethernet
281 device wlan # 802.11 support
282 options IEEE80211_DEBUG # enable debug msgs
283 options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
284 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
285 device wlan_wep # 802.11 WEP support
286 device wlan_ccmp # 802.11 CCMP support
287 device wlan_tkip # 802.11 TKIP support
288 device wlan_amrr # AMRR transmit rate control algorithm
289 device an # Aironet 4500/4800 802.11 wireless NICs.
290 device ath # Atheros NICs
291 device ath_pci # Atheros pci/cardbus glue
292 device ath_hal # pci/cardbus chip support
293 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
294 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
295 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
296 device ath_rate_sample # SampleRate tx rate control for ath
297 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
298 #device bwn # Broadcom BCM43xx wireless NICs.
299 device ipw # Intel 2100 wireless NICs.
300 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
301 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
302 device malo # Marvell Libertas wireless NICs.
303 device mwl # Marvell 88W8363 802.11n wireless NICs.
304 device ral # Ralink Technology RT2500 wireless NICs.
305 device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
306 device wpi # Intel 3945ABG wireless NICs.
309 device crypto # core crypto support
310 device loop # Network loopback
311 device random # Entropy device
312 device padlock_rng # VIA Padlock RNG
313 device rdrand_rng # Intel Bull Mountain RNG
314 device ether # Ethernet support
315 device vlan # 802.1Q VLAN support
316 device tun # Packet tunnel.
317 device md # Memory "disks"
318 device gif # IPv6 and IPv4 tunneling
319 device firmware # firmware assist module
321 # The `bpf' device enables the Berkeley Packet Filter.
322 # Be aware of the administrative consequences of enabling this!
323 # Note that 'bpf' is required for DHCP.
324 device bpf # Berkeley packet filter
327 options USB_DEBUG # enable debug msgs
328 device uhci # UHCI PCI->USB interface
329 device ohci # OHCI PCI->USB interface
330 device ehci # EHCI PCI->USB interface (USB 2.0)
331 device xhci # XHCI PCI->USB interface (USB 3.0)
332 device usb # USB Bus (required)
333 device ukbd # Keyboard
334 device umass # Disks/Mass storage - Requires scbus and da
337 device sound # Generic sound driver (required)
338 device snd_cmi # CMedia CMI8338/CMI8738
339 device snd_csa # Crystal Semiconductor CS461x/428x
340 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
341 device snd_es137x # Ensoniq AudioPCI ES137x
342 device snd_hda # Intel High Definition Audio
343 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
344 device snd_via8233 # VIA VT8233x Audio
347 device mmc # MMC/SD bus
348 device mmcsd # MMC/SD memory card
349 device sdhci # Generic PCI SD Host Controller
352 device virtio # Generic VirtIO bus (required)
353 device virtio_pci # VirtIO PCI device
354 device vtnet # VirtIO Ethernet device
355 device virtio_blk # VirtIO Block device
356 device virtio_scsi # VirtIO SCSI device
357 device virtio_balloon # VirtIO Memory Balloon device
359 # HyperV drivers and enchancement support
360 device hyperv # HyperV drivers
362 # Xen HVM Guest Optimizations
363 # NOTE: XENHVM depends on xenpci. They must be added or removed together.
364 options XENHVM # Xen HVM kernel infrastructure
365 device xenpci # Xen HVM Hypervisor services driver
368 device vmx # VMware VMXNET3 Ethernet
371 options EVDEV_SUPPORT # evdev support in legacy drivers
372 device evdev # input event device support
373 device uinput # install /dev/uinput cdev