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# 65# Microsemi smartpqi controllers. 66# These controllers have a SCSI-like interface, and require the 67# CAM infrastructure. 68# 69device smartpqi 70 71# 72# Network interfaces: 73# 74 75# axp: AMD EPYC integrated NIC 76# Requires the miibus module 77# ice: Intel 800 Series Physical Function 78# Requires the ice_ddp module for full functionality 79# irdma: Intel 800 Series RDMA driver 80# Requires the ice module 81# qlxgb: QLogic 3200 and 8200 series 10 Gigabit Ethernet & CNA Adapter 82# qlxgbe: QLogic 8300 series 10 Gigabit Ethernet & CNA Adapter 83# qlxge: QLogic 8100 series 10 Gigabit Ethernet & CNA Adapter 84# qlnxe: Cavium QLogic 41000/45000 series 10/25/40/100 Gigabit Ethernet & CNA Adapter 85# sfxge: Solarflare SFC9000 family 10Gb Ethernet adapters 86 87device axp # AMD EPYC integrated NIC 88device ixl # Intel 700 Series Physical Function 89device iavf # Intel Adaptive Virtual Function 90device ice # Intel 800 Series Physical Function 91device ice_ddp # Intel 800 Series DDP Package 92device irdma # Intel 800 Series RDMA driver 93device qlxgb # QLogic 3200/8200 Ethernet 94device qlxgbe # QLogic 8300 Ethernet 95device qlxge # QLogic 8100 Ethernet 96device qlnxe # QLogic 41000/45000 Ethernet 97device sfxge # Solarflare SFC9000 10Gb Ethernet 98 99##################################################################### 100 101# 102# Miscellaneous hardware: 103# 104 105device ioat # Intel I/OAT DMA engine 106 107# EFI Runtime Services support 108options EFIRT 109 110# EFI pseudo-device 111device efidev 112 113# EFI RTC 114device efirtc 115 116# 117# Intel QuickAssist driver with OpenCrypto support 118# 119# Only for legacy Atom C2XXX chipsets. 120device qat_c2xxx 121 122# Xen HVM Guest Optimizations 123options XENHVM # Xen HVM kernel infrastructure 124device xenefi # Xen EFI timer device 125device xenpci # Xen HVM Hypervisor services driver 126device xentimer # Xen x86 PV timer device 127 128##################################################################### 129# ABI Emulation 130 131# Enable 32-bit runtime support for FreeBSD/i386 binaries. 132options COMPAT_FREEBSD32 133 134# Enable (32-bit) a.out binary support 135options COMPAT_AOUT 136 137##################################################################### 138# ZFS support 139 140# NB: This depends on crypto, cryptodev and ZSTDIO 141options ZFS 142 143##################################################################### 144# VM OPTIONS 145 146# 147# Number of initial kernel page table pages used for early bootstrap. 148# This number should include enough pages to map the kernel and any 149# modules or other data loaded with the kernel by the loader. Each 150# page table page maps 2MB. 151# 152options NKPT=31 153 154# KSTACK_PAGES is the number of memory pages to assign to the kernel 155# stack of each thread. 156 157options KSTACK_PAGES=5 158 159# Enable detailed accounting by the PV entry allocator. 160 161options PV_STATS 162 163##################################################################### 164# Kernel sanitizers 165 166#options COVERAGE # Generic kernel coverage. Used by KCOV 167#options KCOV # Kernel Coverage Sanitizer 168# Warning: KUBSAN can result in a kernel too large for loader to load 169#options KUBSAN # Kernel Undefined Behavior Sanitizer 170#options KCSAN # Kernel Concurrency Sanitizer 171#options KASAN # Kernel Address Sanitizer 172#options KCSAN # Kernel Concurrency Sanitizer 173#options KMSAN # Kernel Memory Sanitizer 174