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://docs.freebsd.org/en/books/handbook/kernelconfig/#kernelconfig-config
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
120 options PCI_HP # PCI-Express native HotPlug
121 options PCI_IOV # PCI SR-IOV support
127 device ahci # AHCI-compatible SATA controllers
128 device ata # Legacy ATA/SATA controllers
129 device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
130 device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA
133 device ahc # AHA2940 and onboard AIC7xxx devices
134 device esp # AMD Am53C974 (Tekram DC-390(T))
135 device hptiop # Highpoint RocketRaid 3xxx series
136 device isp # Qlogic family
137 #device ispfw # Firmware for QLogic HBAs- normally a module
138 device mpt # LSI-Logic MPT-Fusion
139 device mps # LSI-Logic MPT-Fusion 2
140 device mpr # LSI-Logic MPT-Fusion 3
141 device sym # NCR/Symbios Logic
142 device isci # Intel C600 SAS controller
143 device pvscsi # VMware PVSCSI
145 # ATA/SCSI peripherals
146 device scbus # SCSI bus (required for ATA/SCSI)
147 device ch # SCSI media changers
148 device da # Direct Access (disks)
149 device sa # Sequential Access (tape etc)
151 device pass # Passthrough device (direct ATA/SCSI access)
152 device ses # Enclosure Services (SES and SAF-TE)
153 #device ctl # CAM Target Layer
155 # RAID controllers interfaced to the SCSI subsystem
156 device amr # AMI MegaRAID
157 device arcmsr # Areca SATA II RAID
158 device ciss # Compaq Smart RAID 5*
159 device iir # Intel Integrated RAID
160 device ips # IBM (Adaptec) ServeRAID
161 device mly # Mylex AcceleRAID/eXtremeRAID
162 device twa # 3ware 9000 series PATA/SATA RAID
163 device tws # LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
166 device aac # Adaptec FSA RAID
167 device aacp # SCSI passthrough for aac (requires CAM)
168 device aacraid # Adaptec by PMC RAID
169 device ida # Compaq Smart RAID
170 device mfi # LSI MegaRAID SAS
171 device mlx # Mylex DAC960 family
172 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
173 device pmspcv # PMC-Sierra SAS/SATA Controller driver
174 device pst # Promise Supertrak SX6000
175 device twe # 3ware ATA RAID
177 # NVM Express (NVMe) support
178 device nvme # base NVMe driver
179 device nvd # expose NVMe namespace as disks, depends on nvme
181 # atkbdc0 controls both the keyboard and the PS/2 mouse
182 device atkbdc # AT keyboard controller
183 device atkbd # AT keyboard
184 device psm # PS/2 mouse
186 device kbdmux # keyboard multiplexer
188 device vga # VGA video card driver
189 options VESA # Add support for VESA BIOS Extensions (VBE)
191 device splash # Splash screen and screen saver support
193 # syscons is the default console driver, resembling an SCO console
195 options SC_PIXEL_MODE # add support for the raster text mode
197 # vt is the new video console driver
202 device agp # support several AGP chipsets
204 # PCCARD (PCMCIA) support
205 # PCMCIA and cardbus bridge support
206 device cbb # cardbus (yenta) bridge
207 device cardbus # CardBus (32-bit) bus
210 device uart # Generic UART driver
214 device ppbus # Parallel port bus (required)
216 device ppi # Parallel port interface device
217 #device vpo # Requires scbus and da
219 device puc # Multi I/O cards and multi-channel UARTs
221 # PCI/PCI-X/PCIe Ethernet NICs that use iflib infrastructure
223 device igc # Intel I225 2.5G Ethernet
224 device em # Intel PRO/1000 Gigabit Ethernet Family
225 device vmx # VMware VMXNET3 Ethernet
228 device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
229 device le # AMD Am7900 LANCE and Am79C9xx PCnet
230 device ti # Alteon Networks Tigon I/II gigabit Ethernet
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 jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
248 device lge # Level 1 LXT1001 gigabit Ethernet
249 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
250 device nfe # nVidia nForce MCP on-board Ethernet
251 device nge # NatSemi DP83820 gigabit Ethernet
252 device re # RealTek 8139C+/8169/8169S/8110S
253 device rl # RealTek 8129/8139
254 device sge # Silicon Integrated Systems SiS190/191
255 device sis # Silicon Integrated Systems SiS 900/SiS 7016
256 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
257 device ste # Sundance ST201 (D-Link DFE-550TX)
258 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
259 device vge # VIA VT612x gigabit Ethernet
260 device vr # VIA Rhine, Rhine II
261 device vte # DM&P Vortex86 RDC R6040 Fast Ethernet
262 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
265 device wlan # 802.11 support
266 options IEEE80211_DEBUG # enable debug msgs
267 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
268 device wlan_wep # 802.11 WEP support
269 device wlan_ccmp # 802.11 CCMP support
270 device wlan_tkip # 802.11 TKIP support
271 device wlan_amrr # AMRR transmit rate control algorithm
272 device ath # Atheros NICs
273 device ath_pci # Atheros pci/cardbus glue
274 device ath_hal # pci/cardbus chip support
275 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
276 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
277 device ath_rate_sample # SampleRate tx rate control for ath
278 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
279 #device bwn # Broadcom BCM43xx wireless NICs.
280 device ipw # Intel 2100 wireless NICs.
281 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
282 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
283 device malo # Marvell Libertas wireless NICs.
284 device mwl # Marvell 88W8363 802.11n wireless NICs.
285 device ral # Ralink Technology RT2500 wireless NICs.
286 device wpi # Intel 3945ABG wireless NICs.
289 device crypto # core crypto support
290 device aesni # AES-NI OpenCrypto module
291 device loop # Network loopback
292 device padlock_rng # VIA Padlock RNG
293 device rdrand_rng # Intel Bull Mountain RNG
294 device ether # Ethernet support
295 device vlan # 802.1Q VLAN support
296 device tuntap # Packet tunnel.
297 device md # Memory "disks"
298 device gif # IPv6 and IPv4 tunneling
299 device firmware # firmware assist module
301 # The `bpf' device enables the Berkeley Packet Filter.
302 # Be aware of the administrative consequences of enabling this!
303 # Note that 'bpf' is required for DHCP.
304 device bpf # Berkeley packet filter
307 options USB_DEBUG # enable debug msgs
308 device uhci # UHCI PCI->USB interface
309 device ohci # OHCI PCI->USB interface
310 device ehci # EHCI PCI->USB interface (USB 2.0)
311 device xhci # XHCI PCI->USB interface (USB 3.0)
312 device usb # USB Bus (required)
313 device ukbd # Keyboard
314 device umass # Disks/Mass storage - Requires scbus and da
317 device sound # Generic sound driver (required)
318 device snd_cmi # CMedia CMI8338/CMI8738
319 device snd_csa # Crystal Semiconductor CS461x/428x
320 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
321 device snd_es137x # Ensoniq AudioPCI ES137x
322 device snd_hda # Intel High Definition Audio
323 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
324 device snd_via8233 # VIA VT8233x Audio
327 device mmc # MMC/SD bus
328 device mmcsd # MMC/SD memory card
329 device sdhci # Generic PCI SD Host Controller
330 device rtsx # Realtek SD card reader
333 device virtio # Generic VirtIO bus (required)
334 device virtio_pci # VirtIO PCI device
335 device vtnet # VirtIO Ethernet device
336 device virtio_blk # VirtIO Block device
337 device virtio_scsi # VirtIO SCSI device
338 device virtio_balloon # VirtIO Memory Balloon device
340 # HyperV drivers and enhancement support
341 # NOTE: HYPERV depends on hyperv. They must be added or removed together.
342 options HYPERV # Kernel support for HyperV drivers
343 device hyperv # HyperV drivers
345 # Xen HVM Guest Optimizations
346 # NOTE: XENHVM and xenpci interdepend. They must be added or removed
347 # together. xentimer depends on XENHVM and isn't required.
348 options XENHVM # Xen HVM kernel infrastructure
349 device xenpci # Xen HVM Hypervisor services driver
350 device xentimer # Xen x86 PV timer device
353 options EVDEV_SUPPORT # evdev support in legacy drivers
354 device evdev # input event device support
355 device uinput # install /dev/uinput cdev
358 options HID_DEBUG # enable debug msgs
359 device hid # Generic HID support
360 options IICHID_SAMPLING # Workaround missing GPIO INTR support