diff options
Diffstat (limited to 'nixpkgs/pkgs/os-specific/linux/kernel/common-config.nix')
| -rw-r--r-- | nixpkgs/pkgs/os-specific/linux/kernel/common-config.nix | 695 |
1 files changed, 695 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/os-specific/linux/kernel/common-config.nix b/nixpkgs/pkgs/os-specific/linux/kernel/common-config.nix new file mode 100644 index 000000000000..c098571bb606 --- /dev/null +++ b/nixpkgs/pkgs/os-specific/linux/kernel/common-config.nix @@ -0,0 +1,695 @@ +# WARNING/NOTE: whenever you want to add an option here you need to either +# * mark it as an optional one with `option`, +# * or make sure it works for all the versions in nixpkgs, +# * or check for which kernel versions it will work (using kernel +# changelog, google or whatever) and mark it with `whenOlder` or +# `whenAtLeast`. +# Then do test your change by building all the kernels (or at least +# their configs) in Nixpkgs or else you will guarantee lots and lots +# of pain to users trying to switch to an older kernel because of some +# hardware problems with a new one. + +# Configuration +{ stdenv, version + +# to let user override values, aka converting modules to included and vice-versa +, mkValueOverride ? null + +# new extraConfig as a flattened set +, structuredExtraConfig ? {} + +# legacy extraConfig as string +, extraConfig ? "" + +, features ? { grsecurity = false; xen_dom0 = false; } +}: + +assert (mkValueOverride == null) || (builtins.isFunction mkValueOverride); + +with stdenv.lib; + +with import ../../../../lib/kernel.nix { inherit (stdenv) lib; inherit version; }; + +let + + # configuration items have to be part of a subattrs + flattenKConf = nested: mapAttrs (_: head) (zipAttrs (attrValues nested)); + + options = { + + debug = { + DEBUG_INFO = if (features.debug or false) then yes else no; + DEBUG_KERNEL = yes; + DEBUG_DEVRES = no; + DYNAMIC_DEBUG = yes; + TIMER_STATS = whenOlder "4.11" yes; + DEBUG_NX_TEST = whenOlder "4.11" no; + CPU_NOTIFIER_ERROR_INJECT = whenOlder "4.4" (option no); + DEBUG_STACK_USAGE = no; + DEBUG_STACKOVERFLOW = when (!features.grsecurity) no; + RCU_TORTURE_TEST = no; + SCHEDSTATS = no; + DETECT_HUNG_TASK = yes; + CRASH_DUMP = option no; + # Easier debugging of NFS issues. + SUNRPC_DEBUG = yes; + }; + + power-management = { + PM_ADVANCED_DEBUG = yes; + X86_INTEL_LPSS = yes; + X86_INTEL_PSTATE = yes; + INTEL_IDLE = yes; + CPU_FREQ_DEFAULT_GOV_PERFORMANCE = yes; + CPU_FREQ_GOV_SCHEDUTIL = whenAtLeast "4.9" yes; + PM_WAKELOCKS = yes; + }; + + external-firmware = { + # Support drivers that need external firmware. + STANDALONE = no; + }; + + proc-config-gz = { + # Make /proc/config.gz available + IKCONFIG = yes; + IKCONFIG_PROC = yes; + }; + + optimization = { + # Optimize with -O2, not -Os + CC_OPTIMIZE_FOR_SIZE = no; + }; + + memtest = { + MEMTEST = yes; + }; + + # Include the CFQ I/O scheduler in the kernel, rather than as a + # module, so that the initrd gets a good I/O scheduler. + scheduler = { + IOSCHED_CFQ = yes; + BLK_CGROUP = yes; # required by CFQ" + IOSCHED_DEADLINE = yes; + MQ_IOSCHED_DEADLINE = whenAtLeast "4.11" yes; + BFQ_GROUP_IOSCHED = whenAtLeast "4.12" yes; + MQ_IOSCHED_KYBER = whenAtLeast "4.12" yes; + IOSCHED_BFQ = whenAtLeast "4.12" module; + }; + + # Enable NUMA. + numa = { + NUMA = option yes; + }; + + networking = { + NET = yes; + IP_PNP = no; + NETFILTER = yes; + NETFILTER_ADVANCED = yes; + IP_VS_PROTO_TCP = yes; + IP_VS_PROTO_UDP = yes; + IP_VS_PROTO_ESP = yes; + IP_VS_PROTO_AH = yes; + IP_DCCP_CCID3 = no; # experimental + CLS_U32_PERF = yes; + CLS_U32_MARK = yes; + BPF_JIT = when (stdenv.hostPlatform.system == "x86_64-linux") yes; + WAN = yes; + # Required by systemd per-cgroup firewalling + CGROUP_BPF = option yes; + CGROUP_NET_PRIO = yes; # Required by systemd + IP_ROUTE_VERBOSE = yes; + IP_MROUTE_MULTIPLE_TABLES = yes; + IP_MULTICAST = yes; + IPV6_ROUTER_PREF = yes; + IPV6_ROUTE_INFO = yes; + IPV6_OPTIMISTIC_DAD = yes; + IPV6_MULTIPLE_TABLES = yes; + IPV6_SUBTREES = yes; + IPV6_MROUTE = yes; + IPV6_MROUTE_MULTIPLE_TABLES = yes; + IPV6_PIMSM_V2 = yes; + IPV6_FOU_TUNNEL = whenAtLeast "4.7" module; + NET_CLS_BPF = whenAtLeast "4.4" module; + NET_ACT_BPF = whenAtLeast "4.4" module; + L2TP_V3 = yes; + L2TP_IP = module; + L2TP_ETH = module; + BRIDGE_VLAN_FILTERING = yes; + BONDING = module; + NET_L3_MASTER_DEV = option yes; + NET_FOU_IP_TUNNELS = option yes; + IP_NF_TARGET_REDIRECT = module; + + PPP_MULTILINK = yes; # PPP multilink support + PPP_FILTER = yes; + + # needed for iwd WPS support (wpa_supplicant replacement) + KEY_DH_OPERATIONS = whenAtLeast "4.7" yes; + + # needed for nftables + NF_TABLES_INET = whenAtLeast "4.17" yes; + NF_TABLES_NETDEV = whenAtLeast "4.17" yes; + NF_TABLES_IPV4 = whenAtLeast "4.17" yes; + NF_TABLES_ARP = whenAtLeast "4.17" yes; + NF_TABLES_IPV6 = whenAtLeast "4.17" yes; + NF_TABLES_BRIDGE = whenAtLeast "4.17" yes; + }; + + wireless = { + CFG80211_WEXT = option yes; # Without it, ipw2200 drivers don't build + IPW2100_MONITOR = option yes; # support promiscuous mode + IPW2200_MONITOR = option yes; # support promiscuous mode + HOSTAP_FIRMWARE = option yes; # Support downloading firmware images with Host AP driver + HOSTAP_FIRMWARE_NVRAM = option yes; + ATH9K_PCI = option yes; # Detect Atheros AR9xxx cards on PCI(e) bus + ATH9K_AHB = option yes; # Ditto, AHB bus + B43_PHY_HT = option yes; + BCMA_HOST_PCI = option yes; + }; + + fb = { + FB = yes; + FB_EFI = yes; + FB_NVIDIA_I2C = yes; # Enable DDC Support + FB_RIVA_I2C = yes; + FB_ATY_CT = yes; # Mach64 CT/VT/GT/LT (incl. 3D RAGE) support + FB_ATY_GX = yes; # Mach64 GX support + FB_SAVAGE_I2C = yes; + FB_SAVAGE_ACCEL = yes; + FB_SIS_300 = yes; + FB_SIS_315 = yes; + FB_3DFX_ACCEL = yes; + FB_VESA = yes; + FRAMEBUFFER_CONSOLE = yes; + FRAMEBUFFER_CONSOLE_ROTATION = yes; + FB_GEODE = when (stdenv.hostPlatform.system == "i686-linux") yes; + }; + + video = { + # Enable KMS for devices whose X.org driver supports it + DRM_I915_KMS = whenOlder "4.3" yes; + # Allow specifying custom EDID on the kernel command line + DRM_LOAD_EDID_FIRMWARE = yes; + VGA_SWITCHEROO = yes; # Hybrid graphics support + DRM_GMA600 = yes; + DRM_GMA3600 = yes; + # necessary for amdgpu polaris support + DRM_AMD_POWERPLAY = whenBetween "4.5" "4.9" yes; + # (experimental) amdgpu support for verde and newer chipsets + DRM_AMDGPU_SI = whenAtLeast "4.9" yes; + # (stable) amdgpu support for bonaire and newer chipsets + DRM_AMDGPU_CIK = whenAtLeast "4.9" yes; + } // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux") { + # Intel GVT-g graphics virtualization supports 64-bit only + DRM_I915_GVT = whenAtLeast "4.16" yes; + DRM_I915_GVT_KVMGT = whenAtLeast "4.16" module; + }; + + sound = { + SND_DYNAMIC_MINORS = yes; + SND_AC97_POWER_SAVE = yes; # AC97 Power-Saving Mode + SND_HDA_INPUT_BEEP = yes; # Support digital beep via input layer + SND_HDA_RECONFIG = yes; # Support reconfiguration of jack functions + # Support configuring jack functions via fw mechanism at boot + SND_HDA_PATCH_LOADER = yes; + SND_USB_CAIAQ_INPUT = yes; + # Enable PSS mixer (Beethoven ADSP-16 and other compatible) + PSS_MIXER = whenOlder "4.12" yes; + }; + + usb-serial = { + USB_SERIAL_GENERIC = yes; # USB Generic Serial Driver + } // optionalAttrs (versionOlder version "4.16") { + # Include firmware for various USB serial devices. + # Only applicable for kernels below 4.16, after that no firmware is shipped in the kernel tree. + USB_SERIAL_KEYSPAN_MPR = yes; + USB_SERIAL_KEYSPAN_USA28 = yes; + USB_SERIAL_KEYSPAN_USA28X = yes; + USB_SERIAL_KEYSPAN_USA28XA = yes; + USB_SERIAL_KEYSPAN_USA28XB = yes; + USB_SERIAL_KEYSPAN_USA19 = yes; + USB_SERIAL_KEYSPAN_USA18X = yes; + USB_SERIAL_KEYSPAN_USA19W = yes; + USB_SERIAL_KEYSPAN_USA19QW = yes; + USB_SERIAL_KEYSPAN_USA19QI = yes; + USB_SERIAL_KEYSPAN_USA49W = yes; + USB_SERIAL_KEYSPAN_USA49WLC = yes; + }; + + usb = { + USB_DEBUG = option (whenOlder "4.18" no); + USB_EHCI_ROOT_HUB_TT = yes; # Root Hub Transaction Translators + USB_EHCI_TT_NEWSCHED = yes; # Improved transaction translator scheduling + }; + + # Filesystem options - in particular, enable extended attributes and + # ACLs for all filesystems that support them. + filesystem = { + FANOTIFY = yes; + TMPFS = yes; + TMPFS_POSIX_ACL = yes; + FS_ENCRYPTION = option (whenAtLeast "4.9" module); + + EXT2_FS_XATTR = yes; + EXT2_FS_POSIX_ACL = yes; + EXT2_FS_SECURITY = yes; + EXT2_FS_XIP = whenOlder "4.0" yes; # Ext2 execute in place support + + EXT3_FS_POSIX_ACL = yes; + EXT3_FS_SECURITY = yes; + + EXT4_FS_POSIX_ACL = yes; + EXT4_FS_SECURITY = yes; + EXT4_ENCRYPTION = option ((if (versionOlder version "4.8") then module else yes)); + + REISERFS_FS_XATTR = option yes; + REISERFS_FS_POSIX_ACL = option yes; + REISERFS_FS_SECURITY = option yes; + + JFS_POSIX_ACL = option yes; + JFS_SECURITY = option yes; + + XFS_QUOTA = option yes; + XFS_POSIX_ACL = option yes; + XFS_RT = option yes; # XFS Realtime subvolume support + + OCFS2_DEBUG_MASKLOG = option no; + + BTRFS_FS_POSIX_ACL = yes; + + UBIFS_FS_ADVANCED_COMPR = option yes; + + F2FS_FS = module; + F2FS_FS_SECURITY = option yes; + F2FS_FS_ENCRYPTION = option yes; + UDF_FS = module; + + NFSD_PNFS = whenBetween "4.0" "4.6" yes; + NFSD_V2_ACL = yes; + NFSD_V3 = yes; + NFSD_V3_ACL = yes; + NFSD_V4 = yes; + NFSD_V4_SECURITY_LABEL = yes; + + NFS_FSCACHE = yes; + NFS_SWAP = yes; + NFS_V3_ACL = yes; + NFS_V4_1 = yes; # NFSv4.1 client support + NFS_V4_2 = yes; + NFS_V4_SECURITY_LABEL = yes; + + CIFS_XATTR = yes; + CIFS_POSIX = option yes; + CIFS_FSCACHE = yes; + CIFS_STATS = whenOlder "4.19" yes; + CIFS_WEAK_PW_HASH = yes; + CIFS_UPCALL = yes; + CIFS_ACL = yes; + CIFS_DFS_UPCALL = yes; + CIFS_SMB2 = whenOlder "4.13" yes; + + CEPH_FSCACHE = yes; + CEPH_FS_POSIX_ACL = yes; + + SQUASHFS_FILE_DIRECT = yes; + SQUASHFS_DECOMP_MULTI_PERCPU = yes; + SQUASHFS_XATTR = yes; + SQUASHFS_ZLIB = yes; + SQUASHFS_LZO = yes; + SQUASHFS_XZ = yes; + SQUASHFS_LZ4 = yes; + + # Native Language Support modules, needed by some filesystems + NLS = yes; + NLS_DEFAULT = "utf8"; + NLS_UTF8 = module; + NLS_CODEPAGE_437 = module; # VFAT default for the codepage= mount option + NLS_ISO8859_1 = module; # VFAT default for the iocharset= mount option + + DEVTMPFS = yes; + }; + + security = { + # Detect writes to read-only module pages + DEBUG_SET_MODULE_RONX = option (whenOlder "4.11" yes); + RANDOMIZE_BASE = option yes; + STRICT_DEVMEM = option yes; # Filter access to /dev/mem + SECURITY_SELINUX_BOOTPARAM_VALUE = "0"; # Disable SELinux by default + # Prevent processes from ptracing non-children processes + SECURITY_YAMA = option yes; + DEVKMEM = when (!features.grsecurity) no; # Disable /dev/kmem + + USER_NS = yes; # Support for user namespaces + + SECURITY_APPARMOR = yes; + DEFAULT_SECURITY_APPARMOR = yes; + + } // optionalAttrs (!stdenv.hostPlatform.isAarch32) { + + # Detect buffer overflows on the stack + CC_STACKPROTECTOR_REGULAR = option (whenOlder "4.18" yes); + }; + + microcode = { + MICROCODE = yes; + MICROCODE_INTEL = yes; + MICROCODE_AMD = yes; + + MICROCODE_EARLY = whenOlder "4.4" yes; + MICROCODE_INTEL_EARLY = whenOlder "4.4" yes; + MICROCODE_AMD_EARLY = whenOlder "4.4" yes; + } // optionalAttrs (versionAtLeast version "4.10") { + # Write Back Throttling + # https://lwn.net/Articles/682582/ + # https://bugzilla.kernel.org/show_bug.cgi?id=12309#c655 + BLK_WBT = yes; + BLK_WBT_SQ = yes; + BLK_WBT_MQ = yes; + }; + + container = { + NAMESPACES = yes; # Required by 'unshare' used by 'nixos-install' + RT_GROUP_SCHED = no; + CGROUP_DEVICE = yes; + CGROUP_HUGETLB = yes; + CGROUP_PERF = yes; + CGROUP_RDMA = whenAtLeast "4.11" yes; + + MEMCG = yes; + MEMCG_SWAP = yes; + + DEVPTS_MULTIPLE_INSTANCES = whenOlder "4.7" yes; + BLK_DEV_THROTTLING = yes; + CFQ_GROUP_IOSCHED = yes; + CGROUP_PIDS = whenAtLeast "4.3" yes; + }; + + staging = { + # Enable staging drivers. These are somewhat experimental, but + # they generally don't hurt. + STAGING = yes; + }; + + proc-events = { + # PROC_EVENTS requires that the netlink connector is not built + # as a module. This is required by libcgroup's cgrulesengd. + CONNECTOR = yes; + PROC_EVENTS = yes; + }; + + tracing = { + FTRACE = yes; + KPROBES = yes; + FUNCTION_TRACER = yes; + FTRACE_SYSCALLS = yes; + SCHED_TRACER = yes; + STACK_TRACER = yes; + UPROBE_EVENT = option (whenOlder "4.11" yes); + UPROBE_EVENTS = option (whenAtLeast "4.11" yes); + BPF_SYSCALL = whenAtLeast "4.4" yes; + BPF_EVENTS = whenAtLeast "4.4" yes; + FUNCTION_PROFILER = yes; + RING_BUFFER_BENCHMARK = no; + }; + + virtualisation = { + PARAVIRT = option yes; + + HYPERVISOR_GUEST = when (!features.grsecurity) yes; + PARAVIRT_SPINLOCKS = option yes; + + KVM_APIC_ARCHITECTURE = whenOlder "4.8" yes; + KVM_ASYNC_PF = yes; + KVM_COMPAT = option (whenBetween "4.0" "4.12" yes); + KVM_DEVICE_ASSIGNMENT = option (whenBetween "3.10" "4.12" yes); + KVM_GENERIC_DIRTYLOG_READ_PROTECT = whenAtLeast "4.0" yes; + KVM_GUEST = when (!features.grsecurity) yes; + KVM_MMIO = yes; + KVM_VFIO = yes; + KSM = yes; + VIRT_DRIVERS = yes; + # We nneed 64 GB (PAE) support for Xen guest support + HIGHMEM64G = option (when (!stdenv.is64bit) yes); + + VFIO_PCI_VGA = when stdenv.is64bit yes; + + } // optionalAttrs (stdenv.isx86_64 || stdenv.isi686) ({ + XEN = option yes; + + # XXX: why isn't this in the xen-dom0 conditional section below? + XEN_DOM0 = option yes; + + } // optionalAttrs features.xen_dom0 { + PCI_XEN = option yes; + HVC_XEN = option yes; + HVC_XEN_FRONTEND = option yes; + XEN_SYS_HYPERVISOR = option yes; + SWIOTLB_XEN = option yes; + XEN_BACKEND = option yes; + XEN_BALLOON = option yes; + XEN_BALLOON_MEMORY_HOTPLUG = option yes; + XEN_EFI = option yes; + XEN_HAVE_PVMMU = option yes; + XEN_MCE_LOG = option yes; + XEN_PVH = option yes; + XEN_PVHVM = option yes; + XEN_SAVE_RESTORE = option yes; + XEN_SCRUB_PAGES = option yes; + XEN_SELFBALLOONING = option yes; + XEN_STUB = option yes; + XEN_TMEM = option yes; + }); + + media = { + MEDIA_DIGITAL_TV_SUPPORT = yes; + MEDIA_CAMERA_SUPPORT = yes; + MEDIA_RC_SUPPORT = whenOlder "4.14" yes; + MEDIA_CONTROLLER = yes; + MEDIA_PCI_SUPPORT = yes; + MEDIA_USB_SUPPORT = yes; + MEDIA_ANALOG_TV_SUPPORT = yes; + VIDEO_STK1160_COMMON = module; + VIDEO_STK1160_AC97 = whenOlder "4.11" yes; + }; + + "9p" = { + # Enable the 9P cache to speed up NixOS VM tests. + "9P_FSCACHE" = option yes; + "9P_FS_POSIX_ACL" = option yes; + }; + + huge-page = { + TRANSPARENT_HUGEPAGE = option yes; + TRANSPARENT_HUGEPAGE_ALWAYS = option no; + TRANSPARENT_HUGEPAGE_MADVISE = option yes; + }; + + zram = { + ZRAM = module; + ZSWAP = option yes; + ZBUD = option yes; + ZSMALLOC = module; + }; + + brcmfmac = { + # Enable PCIe and USB for the brcmfmac driver + BRCMFMAC_USB = option yes; + BRCMFMAC_PCIE = option yes; + }; + + # Support x2APIC (which requires IRQ remapping) + x2apic = optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux") { + X86_X2APIC = yes; + IRQ_REMAP = yes; + }; + + # Disable various self-test modules that have no use in a production system + tests = { + # This menu disables all/most of them on >= 4.16 + RUNTIME_TESTING_MENU = option no; + } // optionalAttrs (versionOlder version "4.16") { + # For older kernels, painstakingly disable each symbol. + ARM_KPROBES_TEST = option no; + ASYNC_RAID6_TEST = option no; + ATOMIC64_SELFTEST = option no; + BACKTRACE_SELF_TEST = option no; + INTERVAL_TREE_TEST = option no; + PERCPU_TEST = option no; + RBTREE_TEST = option no; + TEST_BITMAP = option no; + TEST_BPF = option no; + TEST_FIRMWARE = option no; + TEST_HASH = option no; + TEST_HEXDUMP = option no; + TEST_KMOD = option no; + TEST_KSTRTOX = option no; + TEST_LIST_SORT = option no; + TEST_LKM = option no; + TEST_PARMAN = option no; + TEST_PRINTF = option no; + TEST_RHASHTABLE = option no; + TEST_SORT = option no; + TEST_STATIC_KEYS = option no; + TEST_STRING_HELPERS = option no; + TEST_UDELAY = option no; + TEST_USER_COPY = option no; + TEST_UUID = option no; + } // { + CRC32_SELFTEST = option no; + CRYPTO_TEST = option no; + EFI_TEST = option no; + GLOB_SELFTEST = option no; + DRM_DEBUG_MM_SELFTEST = option (whenOlder "4.18" no); + LNET_SELFTEST = option (whenOlder "4.18" no); + LOCK_TORTURE_TEST = option no; + MTD_TESTS = option no; + NOTIFIER_ERROR_INJECTION = option no; + RCU_PERF_TEST = option no; + RCU_TORTURE_TEST = option no; + TEST_ASYNC_DRIVER_PROBE = option no; + WW_MUTEX_SELFTEST = option no; + XZ_DEC_TEST = option no; + } // optionalAttrs (features.criu or false) ({ + EXPERT = yes; + CHECKPOINT_RESTORE = yes; + } // optionalAttrs (features.criu_revert_expert or true) { + RFKILL_INPUT = option yes; + HID_PICOLCD_FB = option yes; + HID_PICOLCD_BACKLIGHT = option yes; + HID_PICOLCD_LCD = option yes; + HID_PICOLCD_LEDS = option yes; + HID_PICOLCD_CIR = option yes; + DEBUG_MEMORY_INIT = option yes; + }); + + misc = { + MODULE_COMPRESS = yes; + MODULE_COMPRESS_XZ = yes; + KERNEL_XZ = yes; + + UNIX = yes; # Unix domain sockets. + + MD = yes; # Device mapper (RAID, LVM, etc.) + + # Enable initrd support. + BLK_DEV_RAM = yes; + BLK_DEV_INITRD = yes; + + PM_TRACE_RTC = no; # Disable some expensive (?) features. + ACCESSIBILITY = yes; # Accessibility support + AUXDISPLAY = yes; # Auxiliary Display support + DONGLE = whenOlder "4.17" yes; # Serial dongle support + HIPPI = yes; + MTD_COMPLEX_MAPPINGS = yes; # needed for many devices + + SCSI_LOWLEVEL = yes; # enable lots of SCSI devices + SCSI_LOWLEVEL_PCMCIA = yes; + SCSI_SAS_ATA = yes; # added to enable detection of hard drive + + SPI = yes; # needed for many devices + SPI_MASTER = yes; + + "8139TOO_8129" = yes; + "8139TOO_PIO" = no; # PIO is slower + + AIC79XX_DEBUG_ENABLE = no; + AIC7XXX_DEBUG_ENABLE = no; + AIC94XX_DEBUG = no; + B43_PCMCIA = option (whenOlder "4.4" yes); + + BLK_DEV_INTEGRITY = yes; + + BSD_PROCESS_ACCT_V3 = yes; + + BT_HCIUART_BCSP = option yes; + BT_HCIUART_H4 = option yes; # UART (H4) protocol support + BT_HCIUART_LL = option yes; + BT_RFCOMM_TTY = option yes; # RFCOMM TTY support + + CLEANCACHE = option yes; + CRASH_DUMP = option no; + + DVB_DYNAMIC_MINORS = option yes; # we use udev + + EFI_STUB = yes; # EFI bootloader in the bzImage itself + CGROUPS = yes; # used by systemd + FHANDLE = yes; # used by systemd + SECCOMP = yes; # used by systemd >= 231 + SECCOMP_FILTER = yes; # ditto + POSIX_MQUEUE = yes; + FRONTSWAP = yes; + FUSION = yes; # Fusion MPT device support + IDE = no; # deprecated IDE support + IDLE_PAGE_TRACKING = yes; + IRDA_ULTRA = whenOlder "4.17" yes; # Ultra (connectionless) protocol + + JOYSTICK_IFORCE_232 = option yes; # I-Force Serial joysticks and wheels + JOYSTICK_IFORCE_USB = option yes; # I-Force USB joysticks and wheels + JOYSTICK_XPAD_FF = option yes; # X-Box gamepad rumble support + JOYSTICK_XPAD_LEDS = option yes; # LED Support for Xbox360 controller 'BigX' LED + + KEXEC_FILE = option yes; + KEXEC_JUMP = option yes; + + # Windows Logical Disk Manager (Dynamic Disk) support + LDM_PARTITION = yes; + LOGIRUMBLEPAD2_FF = yes; # Logitech Rumblepad 2 force feedback + LOGO = no; # not needed + MEDIA_ATTACH = yes; + MEGARAID_NEWGEN = yes; + + MLX4_EN_VXLAN = whenOlder "4.8" yes; + MLX5_CORE_EN = option yes; + + MODVERSIONS = whenOlder "4.9" yes; + MOUSE_PS2_ELANTECH = yes; # Elantech PS/2 protocol extension + MTRR_SANITIZER = yes; + NET_FC = yes; # Fibre Channel driver support + # GPIO on Intel Bay Trail, for some Chromebook internal eMMC disks + PINCTRL_BAYTRAIL = yes; + # 8 is default. Modern gpt tables on eMMC may go far beyond 8. + MMC_BLOCK_MINORS = "32"; + + REGULATOR = yes; # Voltage and Current Regulator Support + RC_DEVICES = option yes; # Enable IR devices + + RT2800USB_RT53XX = yes; + RT2800USB_RT55XX = yes; + + SCHED_AUTOGROUP = yes; + CFS_BANDWIDTH = yes; + + SCSI_LOGGING = yes; # SCSI logging facility + SERIAL_8250 = yes; # 8250/16550 and compatible serial support + + SLIP_COMPRESSED = yes; # CSLIP compressed headers + SLIP_SMART = yes; + + HWMON = yes; + THERMAL_HWMON = yes; # Hardware monitoring support + UEVENT_HELPER = no; + + USERFAULTFD = yes; + X86_CHECK_BIOS_CORRUPTION = yes; + X86_MCE = yes; + + # Our initrd init uses shebang scripts, so can't be modular. + BINFMT_SCRIPT = yes; + # For systemd-binfmt + BINFMT_MISC = option yes; + + # Disable the firmware helper fallback, udev doesn't implement it any more + FW_LOADER_USER_HELPER_FALLBACK = option no; + + HOTPLUG_PCI_ACPI = yes; # PCI hotplug using ACPI + HOTPLUG_PCI_PCIE = yes; # PCI-Expresscard hotplug support + + } // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux" || stdenv.hostPlatform.system == "aarch64-linux") { + # Bump the maximum number of CPUs to support systems like EC2 x1.* + # instances and Xeon Phi. + NR_CPUS = "384"; + }; + }; +in (generateNixKConf ((flattenKConf options) // structuredExtraConfig) mkValueOverride) + extraConfig |