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_PART_GPT # GUID Partition Tables.
55 options GEOM_RAID # Soft RAID functionality.
56 options GEOM_LABEL # Provides labelization
57 options COMPAT_FREEBSD4 # Compatible with FreeBSD4
58 options COMPAT_FREEBSD5 # Compatible with FreeBSD5
59 options COMPAT_FREEBSD6 # Compatible with FreeBSD6
60 options COMPAT_FREEBSD7 # Compatible with FreeBSD7
61 options COMPAT_FREEBSD9 # Compatible with FreeBSD9
62 options COMPAT_FREEBSD10 # Compatible with FreeBSD10
63 options COMPAT_FREEBSD11 # Compatible with FreeBSD11
64 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
65 options KTRACE # ktrace(1) support
66 options STACK # stack(9) support
67 options SYSVSHM # SYSV-style shared memory
68 options SYSVMSG # SYSV-style message queues
69 options SYSVSEM # SYSV-style semaphores
70 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
71 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
72 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
73 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
74 options AUDIT # Security event auditing
75 options CAPABILITY_MODE # Capsicum capability mode
76 options CAPABILITIES # Capsicum capabilities
77 options MAC # TrustedBSD MAC Framework
78 options KDTRACE_HOOKS # Kernel DTrace hooks
79 options DDB_CTF # Kernel ELF linker loads CTF data
80 options INCLUDE_CONFIG_FILE # Include this file in kernel
81 options RACCT # Resource accounting framework
82 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
83 options RCTL # Resource limits
85 # Debugging support. Always need this:
86 options KDB # Enable kernel debugger support.
87 options KDB_TRACE # Print a stack trace for a panic.
88 # For full debugger support use (turn off in stable branch):
89 options DDB # Support DDB.
90 options GDB # Support remote GDB.
91 options DEADLKRES # Enable the deadlock resolver
92 options INVARIANTS # Enable calls of extra sanity checking
93 options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
94 options WITNESS # Enable checks to detect deadlocks and cycles
95 options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
96 options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
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 ncr # NCR/Symbios Logic
137 device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
138 device trm # Tekram DC395U/UW/F DC315U adapters
140 device adv # Advansys SCSI adapters
141 device adw # Advansys wide SCSI adapters
142 device aha # Adaptec 154x SCSI adapters
143 device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
144 device bt # Buslogic/Mylex MultiMaster SCSI adapters
146 device ncv # NCR 53C500
147 device nsp # Workbit Ninja SCSI-3
148 device stg # TMC 18C30/18C50
149 device isci # Intel C600 SAS controller
151 # ATA/SCSI peripherals
152 device scbus # SCSI bus (required for ATA/SCSI)
153 device ch # SCSI media changers
154 device da # Direct Access (disks)
155 device sa # Sequential Access (tape etc)
157 device pass # Passthrough device (direct ATA/SCSI access)
158 device ses # Enclosure Services (SES and SAF-TE)
159 #device ctl # CAM Target Layer
161 # RAID controllers interfaced to the SCSI subsystem
162 device amr # AMI MegaRAID
163 device arcmsr # Areca SATA II RAID
164 device ciss # Compaq Smart RAID 5*
165 device dpt # DPT Smartcache III, IV - See NOTES for options
166 device hptmv # Highpoint RocketRAID 182x
167 device hptnr # Highpoint DC7280, R750
168 device hptrr # Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
169 device hpt27xx # Highpoint RocketRAID 27xx
170 device iir # Intel Integrated RAID
171 device ips # IBM (Adaptec) ServeRAID
172 device mly # Mylex AcceleRAID/eXtremeRAID
173 device twa # 3ware 9000 series PATA/SATA RAID
174 device tws # LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
177 device aac # Adaptec FSA RAID
178 device aacp # SCSI passthrough for aac (requires CAM)
179 device aacraid # Adaptec by PMC RAID
180 device ida # Compaq Smart RAID
181 device mfi # LSI MegaRAID SAS
182 device mlx # Mylex DAC960 family
183 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
184 device pmspcv # PMC-Sierra SAS/SATA Controller driver
185 device pst # Promise Supertrak SX6000
186 device twe # 3ware ATA RAID
188 # NVM Express (NVMe) support
189 device nvme # base NVMe driver
190 device nvd # expose NVMe namespace as disks, depends on nvme
192 # atkbdc0 controls both the keyboard and the PS/2 mouse
193 device atkbdc # AT keyboard controller
194 device atkbd # AT keyboard
195 device psm # PS/2 mouse
197 device kbdmux # keyboard multiplexer
199 device vga # VGA video card driver
200 options VESA # Add support for VESA BIOS Extensions (VBE)
202 device splash # Splash screen and screen saver support
204 # syscons is the default console driver, resembling an SCO console
206 options SC_PIXEL_MODE # add support for the raster text mode
208 # vt is the new video console driver
212 device agp # support several AGP chipsets
214 # Power management support (see NOTES for more options)
217 # PCCARD (PCMCIA) support
218 # PCMCIA and cardbus bridge support
219 device cbb # cardbus (yenta) bridge
220 device pccard # PC Card (16-bit) bus
221 device cardbus # CardBus (32-bit) bus
224 device uart # Generic UART driver
228 device ppbus # Parallel port bus (required)
230 device ppi # Parallel port interface device
231 #device vpo # Requires scbus and da
233 device puc # Multi I/O cards and multi-channel UARTs
236 device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
237 device de # DEC/Intel DC21x4x (``Tulip'')
238 device em # Intel PRO/1000 Gigabit Ethernet Family
239 device le # AMD Am7900 LANCE and Am79C9xx PCnet
240 device ti # Alteon Networks Tigon I/II gigabit Ethernet
241 device txp # 3Com 3cR990 (``Typhoon'')
242 device vx # 3Com 3c590, 3c595 (``Vortex'')
244 # PCI Ethernet NICs that use the common MII bus controller code.
245 # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
246 device miibus # MII bus support
247 device ae # Attansic/Atheros L2 FastEthernet
248 device age # Attansic/Atheros L1 Gigabit Ethernet
249 device alc # Atheros AR8131/AR8132 Ethernet
250 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
251 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
252 device bfe # Broadcom BCM440x 10/100 Ethernet
253 device bge # Broadcom BCM570xx Gigabit Ethernet
254 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
255 device dc # DEC/Intel 21143 and various workalikes
256 device et # Agere ET1310 10/100/Gigabit Ethernet
257 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
258 device gem # Sun GEM/Sun ERI/Apple GMAC
259 device hme # Sun HME (Happy Meal Ethernet)
260 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
261 device lge # Level 1 LXT1001 gigabit Ethernet
262 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
263 device nfe # nVidia nForce MCP on-board Ethernet
264 device nge # NatSemi DP83820 gigabit Ethernet
265 device pcn # AMD Am79C97x PCI 10/100 (precedence over 'le')
266 device re # RealTek 8139C+/8169/8169S/8110S
267 device rl # RealTek 8129/8139
268 device sf # Adaptec AIC-6915 (``Starfire'')
269 device sge # Silicon Integrated Systems SiS190/191
270 device sis # Silicon Integrated Systems SiS 900/SiS 7016
271 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
272 device ste # Sundance ST201 (D-Link DFE-550TX)
273 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
274 device tl # Texas Instruments ThunderLAN
275 device tx # SMC EtherPower II (83c170 ``EPIC'')
276 device vge # VIA VT612x gigabit Ethernet
277 device vr # VIA Rhine, Rhine II
278 device vte # DM&P Vortex86 RDC R6040 Fast Ethernet
279 device wb # Winbond W89C840F
280 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
282 # ISA Ethernet NICs. pccard NICs included.
283 device cs # Crystal Semiconductor CS89x0 NIC
284 # 'device ed' requires 'device miibus'
285 device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
286 device ex # Intel EtherExpress Pro/10 and Pro/10+
287 device ep # Etherlink III based cards
288 device fe # Fujitsu MB8696x based cards
289 device sn # SMC's 9000 series of Ethernet chips
290 device xe # Xircom pccard Ethernet
293 device wlan # 802.11 support
294 options IEEE80211_DEBUG # enable debug msgs
295 options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
296 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
297 device wlan_wep # 802.11 WEP support
298 device wlan_ccmp # 802.11 CCMP support
299 device wlan_tkip # 802.11 TKIP support
300 device wlan_amrr # AMRR transmit rate control algorithm
301 device an # Aironet 4500/4800 802.11 wireless NICs.
302 device ath # Atheros NICs
303 device ath_pci # Atheros pci/cardbus glue
304 device ath_hal # pci/cardbus chip support
305 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
306 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
307 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
308 device ath_rate_sample # SampleRate tx rate control for ath
309 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
310 #device bwn # Broadcom BCM43xx wireless NICs.
311 device ipw # Intel 2100 wireless NICs.
312 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
313 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
314 device malo # Marvell Libertas wireless NICs.
315 device mwl # Marvell 88W8363 802.11n wireless NICs.
316 device ral # Ralink Technology RT2500 wireless NICs.
317 device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
318 device wpi # Intel 3945ABG wireless NICs.
321 device crypto # core crypto support
322 device loop # Network loopback
323 device random # Entropy device
324 device padlock_rng # VIA Padlock RNG
325 device rdrand_rng # Intel Bull Mountain RNG
326 device ether # Ethernet support
327 device vlan # 802.1Q VLAN support
328 device tun # Packet tunnel.
329 device md # Memory "disks"
330 device gif # IPv6 and IPv4 tunneling
331 device firmware # firmware assist module
333 # The `bpf' device enables the Berkeley Packet Filter.
334 # Be aware of the administrative consequences of enabling this!
335 # Note that 'bpf' is required for DHCP.
336 device bpf # Berkeley packet filter
339 options USB_DEBUG # enable debug msgs
340 device uhci # UHCI PCI->USB interface
341 device ohci # OHCI PCI->USB interface
342 device ehci # EHCI PCI->USB interface (USB 2.0)
343 device xhci # XHCI PCI->USB interface (USB 3.0)
344 device usb # USB Bus (required)
345 device ukbd # Keyboard
346 device umass # Disks/Mass storage - Requires scbus and da
349 device sound # Generic sound driver (required)
350 device snd_cmi # CMedia CMI8338/CMI8738
351 device snd_csa # Crystal Semiconductor CS461x/428x
352 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
353 device snd_es137x # Ensoniq AudioPCI ES137x
354 device snd_hda # Intel High Definition Audio
355 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
356 device snd_via8233 # VIA VT8233x Audio
359 device mmc # MMC/SD bus
360 device mmcsd # MMC/SD memory card
361 device sdhci # Generic PCI SD Host Controller
364 device virtio # Generic VirtIO bus (required)
365 device virtio_pci # VirtIO PCI device
366 device vtnet # VirtIO Ethernet device
367 device virtio_blk # VirtIO Block device
368 device virtio_scsi # VirtIO SCSI device
369 device virtio_balloon # VirtIO Memory Balloon device
371 # HyperV drivers and enchancement support
372 device hyperv # HyperV drivers
374 # Xen HVM Guest Optimizations
375 # NOTE: XENHVM depends on xenpci. They must be added or removed together.
376 options XENHVM # Xen HVM kernel infrastructure
377 device xenpci # Xen HVM Hypervisor services driver
380 device vmx # VMware VMXNET3 Ethernet