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_SUPPORT # Allow kldload of ipsec and tcpmd5
35 options ROUTE_MPATH # Multipath routing support
36 options TCP_HHOOK # hhook(9) framework for TCP
37 options TCP_OFFLOAD # TCP offload
38 options SCTP_SUPPORT # Allow kldload of SCTP
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 TMPFS # Efficient memory filesystem
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 COMPAT_FREEBSD12 # Compatible with FreeBSD12
65 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
66 options KTRACE # ktrace(1) support
67 options STACK # stack(9) support
68 options SYSVSHM # SYSV-style shared memory
69 options SYSVMSG # SYSV-style message queues
70 options SYSVSEM # SYSV-style semaphores
71 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
72 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
73 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
74 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
75 options AUDIT # Security event auditing
76 options CAPABILITY_MODE # Capsicum capability mode
77 options CAPABILITIES # Capsicum capabilities
78 options MAC # TrustedBSD MAC Framework
79 options KDTRACE_HOOKS # Kernel DTrace hooks
80 options DDB_CTF # Kernel ELF linker loads CTF data
81 options INCLUDE_CONFIG_FILE # Include this file in kernel
82 options RACCT # Resource accounting framework
83 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
84 options RCTL # Resource limits
86 # Debugging support. Always need this:
87 options KDB # Enable kernel debugger support.
88 options KDB_TRACE # Print a stack trace for a panic.
89 # For full debugger support use (turn off in stable branch):
90 options DDB # Support DDB.
91 options GDB # Support remote GDB.
92 options DEADLKRES # Enable the deadlock resolver
93 options INVARIANTS # Enable calls of extra sanity checking
94 options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
95 options WITNESS # Enable checks to detect deadlocks and cycles
96 options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
97 options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
98 options VERBOSE_SYSINIT=0 # Support debug.verbose_sysinit, off by default
100 # Kernel dump features.
101 options EKCD # Support for encrypted kernel dumps
102 options GZIO # gzip-compressed kernel and user dumps
103 options ZSTDIO # zstd-compressed kernel and user dumps
104 options DEBUGNET # debugnet networking
105 options NETDUMP # netdump(4) client support
106 options NETGDB # netgdb(4) client support
108 # To make an SMP kernel, the next two lines are needed
109 options SMP # Symmetric MultiProcessor Kernel
110 device apic # I/O APIC
111 options EARLY_AP_STARTUP
113 # CPU frequency control
119 options PCI_HP # PCI-Express native HotPlug
120 options PCI_IOV # PCI SR-IOV support
126 device ahci # AHCI-compatible SATA controllers
127 device ata # Legacy ATA/SATA controllers
128 device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
129 device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA
132 device ahc # AHA2940 and onboard AIC7xxx devices
133 device esp # AMD Am53C974 (Tekram DC-390(T))
134 device hptiop # Highpoint RocketRaid 3xxx series
135 device isp # Qlogic family
136 #device ispfw # Firmware for QLogic HBAs- normally a module
137 device mpt # LSI-Logic MPT-Fusion
138 device mps # LSI-Logic MPT-Fusion 2
139 device mpr # LSI-Logic MPT-Fusion 3
140 device sym # NCR/Symbios Logic
141 device isci # Intel C600 SAS controller
142 device pvscsi # VMware PVSCSI
144 # ATA/SCSI peripherals
145 device scbus # SCSI bus (required for ATA/SCSI)
146 device ch # SCSI media changers
147 device da # Direct Access (disks)
148 device sa # Sequential Access (tape etc)
150 device pass # Passthrough device (direct ATA/SCSI access)
151 device ses # Enclosure Services (SES and SAF-TE)
152 #device ctl # CAM Target Layer
154 # RAID controllers interfaced to the SCSI subsystem
155 device amr # AMI MegaRAID
156 device arcmsr # Areca SATA II RAID
157 device ciss # Compaq Smart RAID 5*
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 # PCCARD (PCMCIA) support
203 # PCMCIA and cardbus bridge support
204 device cbb # cardbus (yenta) bridge
205 device pccard # PC Card (16-bit) bus
206 device cardbus # CardBus (32-bit) bus
209 device uart # Generic UART driver
213 device ppbus # Parallel port bus (required)
215 device ppi # Parallel port interface device
216 #device vpo # Requires scbus and da
218 device puc # Multi I/O cards and multi-channel UARTs
220 # PCI/PCI-X/PCIe Ethernet NICs that use iflib infrastructure
222 device em # Intel PRO/1000 Gigabit Ethernet Family
223 device vmx # VMware VMXNET3 Ethernet
226 device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
227 device le # AMD Am7900 LANCE and Am79C9xx PCnet
228 device ti # Alteon Networks Tigon I/II gigabit Ethernet
230 # PCI Ethernet NICs that use the common MII bus controller code.
231 # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
232 device miibus # MII bus support
233 device ae # Attansic/Atheros L2 FastEthernet
234 device age # Attansic/Atheros L1 Gigabit Ethernet
235 device alc # Atheros AR8131/AR8132 Ethernet
236 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
237 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
238 device bfe # Broadcom BCM440x 10/100 Ethernet
239 device bge # Broadcom BCM570xx Gigabit Ethernet
240 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
241 device dc # DEC/Intel 21143 and various workalikes
242 device et # Agere ET1310 10/100/Gigabit Ethernet
243 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
244 device gem # Sun GEM/Sun ERI/Apple GMAC
245 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
246 device lge # Level 1 LXT1001 gigabit Ethernet
247 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
248 device nfe # nVidia nForce MCP on-board Ethernet
249 device nge # NatSemi DP83820 gigabit Ethernet
250 device re # RealTek 8139C+/8169/8169S/8110S
251 device rl # RealTek 8129/8139
252 device sge # Silicon Integrated Systems SiS190/191
253 device sis # Silicon Integrated Systems SiS 900/SiS 7016
254 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
255 device ste # Sundance ST201 (D-Link DFE-550TX)
256 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
257 device vge # VIA VT612x gigabit Ethernet
258 device vr # VIA Rhine, Rhine II
259 device vte # DM&P Vortex86 RDC R6040 Fast Ethernet
260 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
263 device wlan # 802.11 support
264 options IEEE80211_DEBUG # enable debug msgs
265 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
266 device wlan_wep # 802.11 WEP support
267 device wlan_ccmp # 802.11 CCMP support
268 device wlan_tkip # 802.11 TKIP support
269 device wlan_amrr # AMRR transmit rate control algorithm
270 device an # Aironet 4500/4800 802.11 wireless NICs.
271 device ath # Atheros NICs
272 device ath_pci # Atheros pci/cardbus glue
273 device ath_hal # pci/cardbus chip support
274 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
275 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
276 device ath_rate_sample # SampleRate tx rate control for ath
277 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
278 #device bwn # Broadcom BCM43xx wireless NICs.
279 device ipw # Intel 2100 wireless NICs.
280 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
281 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
282 device malo # Marvell Libertas wireless NICs.
283 device mwl # Marvell 88W8363 802.11n wireless NICs.
284 device ral # Ralink Technology RT2500 wireless NICs.
285 device wpi # Intel 3945ABG wireless NICs.
288 device crypto # core crypto support
289 device loop # Network loopback
290 device padlock_rng # VIA Padlock RNG
291 device rdrand_rng # Intel Bull Mountain RNG
292 device ether # Ethernet support
293 device vlan # 802.1Q VLAN support
294 device tuntap # Packet tunnel.
295 device md # Memory "disks"
296 device gif # IPv6 and IPv4 tunneling
297 device firmware # firmware assist module
299 # The `bpf' device enables the Berkeley Packet Filter.
300 # Be aware of the administrative consequences of enabling this!
301 # Note that 'bpf' is required for DHCP.
302 device bpf # Berkeley packet filter
305 options USB_DEBUG # enable debug msgs
306 device uhci # UHCI PCI->USB interface
307 device ohci # OHCI PCI->USB interface
308 device ehci # EHCI PCI->USB interface (USB 2.0)
309 device xhci # XHCI PCI->USB interface (USB 3.0)
310 device usb # USB Bus (required)
311 device ukbd # Keyboard
312 device umass # Disks/Mass storage - Requires scbus and da
315 device sound # Generic sound driver (required)
316 device snd_cmi # CMedia CMI8338/CMI8738
317 device snd_csa # Crystal Semiconductor CS461x/428x
318 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
319 device snd_es137x # Ensoniq AudioPCI ES137x
320 device snd_hda # Intel High Definition Audio
321 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
322 device snd_via8233 # VIA VT8233x Audio
325 device mmc # MMC/SD bus
326 device mmcsd # MMC/SD memory card
327 device sdhci # Generic PCI SD Host Controller
328 device rtsx # Realtek SD card reader
331 device virtio # Generic VirtIO bus (required)
332 device virtio_pci # VirtIO PCI device
333 device vtnet # VirtIO Ethernet device
334 device virtio_blk # VirtIO Block device
335 device virtio_scsi # VirtIO SCSI device
336 device virtio_balloon # VirtIO Memory Balloon device
338 # HyperV drivers and enchancement support
339 device hyperv # HyperV drivers
341 # Xen HVM Guest Optimizations
342 # NOTE: XENHVM depends on xenpci. They must be added or removed together.
343 options XENHVM # Xen HVM kernel infrastructure
344 device xenpci # Xen HVM Hypervisor services driver
347 options EVDEV_SUPPORT # evdev support in legacy drivers
348 device evdev # input event device support
349 device uinput # install /dev/uinput cdev
352 options HID_DEBUG # enable debug msgs
353 device hid # Generic HID support
354 options IICHID_SAMPLING # Workaround missing GPIO INTR support
355 #device usbhid # USB transport support.
356 #device hidbus # HID bus (required by usbhid/iichid)
357 #options USBHID_ENABLED # Prefer usbhid to other USB drivers