1# 2# NOTES -- Lines that can be cut/pasted into kernel and hints configs. 3# 4# This file contains machine dependent kernel configuration notes. For 5# machine independent notes, look in /sys/conf/NOTES. For notes shared 6# with i386, look in /sys/x86/conf/NOTES. 7# 8# 9 10# GCOV (code coverage) support 11 12options LINDEBUGFS 13options GCOV 14 15 16##################################################################### 17# SMP OPTIONS: 18 19# Optional: 20device atpic # Optional legacy pic support 21device mptable # Optional MPSPEC mptable support 22 23 24##################################################################### 25# CPU OPTIONS 26 27# 28# You must specify at least one CPU (the one you intend to run on); 29# deleting the specification for CPUs you don't need to use may make 30# parts of the system run faster. 31# 32cpu HAMMER # aka K8, aka Opteron & Athlon64 33 34# 35# Options for CPU features. 36# 37 38 39##################################################################### 40# HARDWARE DEVICE CONFIGURATION 41 42# 43# Optional devices: 44# 45 46# vt(4) drivers. 47device vt_efifb # EFI framebuffer 48 49# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create 50# the /dev/3dfx0 device to work with glide implementations. This should get 51# linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as 52# the tdfx DRI module from XFree86 and is completely unrelated. 53# 54 55device tdfx # Enable 3Dfx Voodoo support 56 57# 58# RAID adapters 59# 60 61#XXX this stores pointers in a 32bit field that is defined by the hardware 62#device pst 63 64# Thunderbolt (USB 4.0) support 65device thunderbolt 66options THUNDERBOLT_DEBUG 67 68# 69# Microsemi smartpqi controllers. 70# These controllers have a SCSI-like interface, and require the 71# CAM infrastructure. 72# 73device smartpqi 74 75# Broadcom MPT Fusion, version 4, is 64-bit only 76device mpi3mr # LSI-Logic MPT-Fusion 4 77 78# Universal Flash Storage Host Controller Interface support 79device ufshci # UFS host controller 80 81# 82# Network interfaces: 83# 84 85# axp: AMD EPYC integrated NIC 86# Requires the miibus module 87# ice: Intel 800 Series Physical Function 88# Requires the ice_ddp module for full functionality 89# irdma: Intel 800 Series RDMA driver 90# Requires the ice module 91# qlxgb: QLogic 3200 and 8200 series 10 Gigabit Ethernet & CNA Adapter 92# qlxgbe: QLogic 8300 series 10 Gigabit Ethernet & CNA Adapter 93# qlxge: QLogic 8100 series 10 Gigabit Ethernet & CNA Adapter 94# qlnxe: Cavium QLogic 41000/45000 series 10/25/40/100 Gigabit Ethernet & CNA Adapter 95# sfxge: Solarflare SFC9000 family 10Gb Ethernet adapters 96 97device axp # AMD EPYC integrated NIC 98device ixl # Intel 700 Series Physical Function 99device iavf # Intel Adaptive Virtual Function 100device ice # Intel 800 Series Physical Function 101device ice_ddp # Intel 800 Series DDP Package 102device irdma # Intel 800 Series RDMA driver 103device qlxgb # QLogic 3200/8200 Ethernet 104device qlxgbe # QLogic 8300 Ethernet 105device qlxge # QLogic 8100 Ethernet 106device qlnxe # QLogic 41000/45000 Ethernet 107device sfxge # Solarflare SFC9000 10Gb Ethernet 108 109##################################################################### 110 111# 112# Miscellaneous hardware: 113# 114 115device ioat # Intel I/OAT DMA engine 116 117# Intel ME Host Firmware Status (HFSTS) debug probe 118device hfsts 119 120# EFI Runtime Services support 121options EFIRT 122 123# EFI pseudo-device 124device efidev 125 126# EFI RTC 127device efirtc 128 129# Apple System Management Controller (SMC) 130device asmc 131options ASMC_DEBUG # Enable asmc(4)-specific debug logic. 132 133# 134# Intel QuickAssist driver with OpenCrypto support 135# 136# Only for legacy Atom C2XXX chipsets. 137device qat_c2xxx 138 139# Xen HVM Guest Optimizations 140options XENHVM # Xen HVM kernel infrastructure 141device xenefi # Xen EFI timer device 142device xenpci # Xen HVM Hypervisor services driver 143device xentimer # Xen x86 PV timer device 144 145##################################################################### 146# ABI Emulation 147 148# Enable 32-bit runtime support for FreeBSD/i386 binaries. 149options COMPAT_FREEBSD32 150 151# Enable (32-bit) a.out binary support 152options COMPAT_AOUT 153 154##################################################################### 155# ZFS support 156 157# NB: This depends on crypto, cryptodev and ZSTDIO 158options ZFS 159 160##################################################################### 161# VM OPTIONS 162 163# 164# Number of initial kernel page table pages used for early bootstrap. 165# This number should include enough pages to map the kernel and any 166# modules or other data loaded with the kernel by the loader. Each 167# page table page maps 2MB. 168# 169options NKPT=31 170 171# KSTACK_PAGES is the number of memory pages to assign to the kernel 172# stack of each thread. 173 174options KSTACK_PAGES=5 175 176# Enable detailed accounting by the PV entry allocator. 177 178options PV_STATS 179 180##################################################################### 181# Kernel sanitizers 182 183#options COVERAGE # Generic kernel coverage. Used by KCOV 184#options KCOV # Kernel Coverage Sanitizer 185# Warning: KUBSAN can result in a kernel too large for loader to load 186#options KUBSAN # Kernel Undefined Behavior Sanitizer 187#options KCSAN # Kernel Concurrency Sanitizer 188#options KASAN # Kernel Address Sanitizer 189#options KMSAN # Kernel Memory Sanitizer 190