commit ff9999ad1b19b941b275b7ec79514d04c7cdad7d · pyrox.dev/nixpkgs

+57

lib/kernel.nix

···

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       { lib

     

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       # we pass the kernel version here to keep a nice syntax `whenOlder "4.13"`

     

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       # kernelVersion, e.g., config.boot.kernelPackages.version

     

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       , version

     

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       , mkValuePreprocess ? null

     

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       }:

     

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       +
       

     

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       with lib;

     

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       rec {

     

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         # Common patterns

     

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         when        = cond: opt: if cond then opt else null;

     

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         whenAtLeast = ver: when (versionAtLeast version ver);

     

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         whenOlder   = ver: when (versionOlder version ver);

     

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         whenBetween = verLow: verHigh: when (versionAtLeast version verLow && versionOlder version verHigh);

     

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       +
       

     

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         # Keeping these around in case we decide to change this horrible implementation :)

     

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         option = x: if x == null then null else "?${x}";

     

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         yes    = "y";

     

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         no     = "n";

     

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         module = "m";

     

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       +
       

     

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         mkValue = val:

     

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         let

     

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           isNumber = c: elem c ["0" "1" "2" "3" "4" "5" "6" "7" "8" "9"];

     

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         in

     

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           if val == "" then "\"\""

     

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           else if val == yes || val == module || val == no then val

     

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           else if all isNumber (stringToCharacters val) then val

     

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           else if substring 0 2 val == "0x" then val

     

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           else val; # FIXME: fix quoting one day

     

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       +
       

     

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       +
       

     

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         # generate nix intermediate kernel config file of the form

     

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         #

     

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         #       VIRTIO_MMIO m

     

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         #       VIRTIO_BLK y

     

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         #       VIRTIO_CONSOLE n

     

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         #       NET_9P_VIRTIO? y

     

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         #

     

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         # Use mkValuePreprocess to preprocess option values, aka mark 'modules' as

     

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         # 'yes' or vice-versa

     

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         # Borrowed from copumpkin https://github.com/NixOS/nixpkgs/pull/12158

     

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         # returns a string, expr should be an attribute set

     

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         generateNixKConf = exprs: mkValuePreprocess:

     

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         let

     

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           mkConfigLine = key: rawval:

     

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           let

     

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             val = if builtins.isFunction mkValuePreprocess then mkValuePreprocess rawval else rawval;

     

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           in

     

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             if val == null

     

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               then ""

     

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               else if hasPrefix "?" val

     

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                 then "${key}? ${mkValue (removePrefix "?" val)}\n"

     

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                 else "${key} ${mkValue val}\n";

     

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           mkConf = cfg: concatStrings (mapAttrsToList mkConfigLine cfg);

     

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         in mkConf exprs;

     

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       }

+639 -659

pkgs/os-specific/linux/kernel/common-config.nix

···

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       /*

     

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       # WARNING/NOTE: whenever you want to add an option here you need to either

     

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       # * mark it as an optional one with `option`,

     

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       # * or make sure it works for all the versions in nixpkgs,

     

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       # * or check for which kernel versions it will work (using kernel

     

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       #   changelog, google or whatever) and mark it with `whenOlder` or

     

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       #   `whenAtLeast`.

     

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       # Then do test your change by building all the kernels (or at least

     

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       # their configs) in Nixpkgs or else you will guarantee lots and lots

     

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       # of pain to users trying to switch to an older kernel because of some

     

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       # hardware problems with a new one.

     

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       # Configuration

     

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       { stdenv, version

     

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         WARNING/NOTE: whenever you want to add an option here you need to

     

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         either

     

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       # to let user override values, aka converting modules to included and vice-versa

     

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       , mkValueOverride ? null

     

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         * mark it as an optional one with `?` suffix,

     

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         * or make sure it works for all the versions in nixpkgs,

     

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         * or check for which kernel versions it will work (using kernel

     

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           changelog, google or whatever) and mark it with `versionOlder` or

     

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           `versionAtLeast`.

     

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       # new extraConfig as a flattened set

     

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       , structuredExtraConfig ? {}

     

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         Then do test your change by building all the kernels (or at least

     

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         their configs) in Nixpkgs or else you will guarantee lots and lots

     

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         of pain to users trying to switch to an older kernel because of some

     

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         hardware problems with a new one.

     

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       # legacy extraConfig as string

     

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       , extraConfig ? ""

     

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       */

     

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       , features ? {}

     

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       }:

     

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       { stdenv, version, extraConfig, features }:

     

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       assert (mkValueOverride == null) || (builtins.isFunction mkValueOverride);

     

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       with stdenv.lib;

     

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       ''

     

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         # Compress kernel modules for a sizable disk space savings.

     

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         ${optionalString (versionAtLeast version "3.18") ''

     

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           MODULE_COMPRESS y

     

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           MODULE_COMPRESS_XZ y

     

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         ''}

     

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       with import ../../../../lib/kernel.nix { inherit (stdenv) lib; inherit version; };

     

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       -
         KERNEL_XZ y

     

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       let

     

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         # temporary hack

     

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         grsecurity = false;

     

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         xen_dom0 = false;

     

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         # Debugging.

     

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         DEBUG_KERNEL y

     

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         DYNAMIC_DEBUG y

     

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         DEBUG_DEVRES n

     

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         DEBUG_STACK_USAGE n

     

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         DEBUG_STACKOVERFLOW n

     

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         SCHEDSTATS n

     

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         DETECT_HUNG_TASK y

     

       40
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         ${if (features.debug or false) then ''

     

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           DEBUG_INFO y

     

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         '' else ''

     

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           DEBUG_INFO n

     

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         ''}

     

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         # TODO configuration items have to be part of subattrs. Remove this constraint

     

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         flattenKConf =  nested: mapAttrs (_: head) (zipAttrs (attrValues nested));

     

       46
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         ${optionalString (versionOlder version "4.4") ''

     

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           CPU_NOTIFIER_ERROR_INJECT? n

     

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         ''}

     

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         options = {

     

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         ${optionalString (versionOlder version "4.11") ''

     

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           TIMER_STATS y

     

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           DEBUG_NX_TEST n

     

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       -
         ''}

     

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           debug = {

     

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             DEBUG_INFO                = if (features.debug or false) then yes else no;

     

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             DEBUG_KERNEL              = yes;

     

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             DEBUG_DEVRES              = no;

     

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             DYNAMIC_DEBUG             = yes;

     

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             TIMER_STATS               = whenOlder "4.11" yes;

     

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             DEBUG_NX_TEST             = whenOlder "4.11" no;

     

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             CPU_NOTIFIER_ERROR_INJECT = whenOlder "4.4" (option no);

     

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             DEBUG_STACK_USAGE         = no;

     

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             DEBUG_STACKOVERFLOW       = when (!grsecurity) no;

     

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             RCU_TORTURE_TEST          = no;

     

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             SCHEDSTATS                = no;

     

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             DETECT_HUNG_TASK          = yes;

     

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             CRASH_DUMP                = option no;

     

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             # Easier debugging of NFS issues.

     

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             SUNRPC_DEBUG              = whenAtLeast "3.4" yes;

     

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           };

     

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       61
        
       

     

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         # Bump the maximum number of CPUs to support systems like EC2 x1.*

     

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         # instances and Xeon Phi.

     

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         ${optionalString (stdenv.hostPlatform.system == "x86_64-linux" || stdenv.hostPlatform.system == "aarch64-linux") ''

     

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           NR_CPUS 384

     

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         ''}

     

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           power-management = {

     

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             PM_RUNTIME                       = whenOlder "3.19" yes;

     

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             PM_ADVANCED_DEBUG                = yes;

     

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             X86_INTEL_LPSS                   = whenAtLeast "3.11" yes;

     

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             X86_INTEL_PSTATE                 = whenAtLeast "3.10" yes;

     

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             INTEL_IDLE                       = yes;

     

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             CPU_FREQ_DEFAULT_GOV_PERFORMANCE = yes;

     

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             USB_SUSPEND                      = whenOlder "3.10" yes;

     

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             PM_WAKELOCKS                     = yes;

     

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           };

     

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       72
        
       

     

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         # Unix domain sockets.

     

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         UNIX y

     

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           external-firmware = {

     

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             # Support drivers that need external firmware.

     

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             STANDALONE = no;

     

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           };

     

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         # Power management.

     

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         ${optionalString (versionOlder version "3.19") ''

     

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           PM_RUNTIME y

     

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         ''}

     

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         PM_ADVANCED_DEBUG y

     

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         ${optionalString (versionAtLeast version "3.11") ''

     

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           X86_INTEL_LPSS y

     

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         ''}

     

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         ${optionalString (versionAtLeast version "3.10") ''

     

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           X86_INTEL_PSTATE y

     

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         ''}

     

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         INTEL_IDLE y

     

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       77
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         CPU_FREQ_DEFAULT_GOV_PERFORMANCE y

     

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       78
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         ${optionalString (versionOlder version "3.10") ''

     

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       79
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           USB_SUSPEND y

     

       80
       80
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         ''}

     

       81
       81
       -
         PM_WAKELOCKS y

     

       78
       78
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           proc-config-gz = {

     

       79
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             # Make /proc/config.gz available

     

       80
       80
       +
             IKCONFIG      = yes;

     

       81
       81
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             IKCONFIG_PROC = yes;

     

       82
       82
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           };

     

       82
       83
        
       

     

       83
       83
       -
         # Support drivers that need external firmware.

     

       84
       84
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         STANDALONE n

     

       84
       84
       +
           optimization = {

     

       85
       85
       +
             # Optimize with -O2, not -Os

     

       86
       86
       +
             CC_OPTIMIZE_FOR_SIZE = no;

     

       87
       87
       +
           };

     

       85
       88
        
       

     

       86
       86
       -
         # Make /proc/config.gz available.

     

       87
       87
       -
         IKCONFIG y

     

       88
       88
       -
         IKCONFIG_PROC y

     

       89
       89
       +
           memtest = {

     

       90
       90
       +
             MEMTEST = yes;

     

       91
       91
       +
           };

     

       89
       92
        
       

     

       90
       90
       -
         # Optimize with -O2, not -Os.

     

       91
       91
       -
         CC_OPTIMIZE_FOR_SIZE n

     

       93
       93
       +
           # Include the CFQ I/O scheduler in the kernel, rather than as a

     

       94
       94
       +
           # module, so that the initrd gets a good I/O scheduler.

     

       95
       95
       +
           scheduler = {

     

       96
       96
       +
             IOSCHED_CFQ = yes;

     

       97
       97
       +
             BLK_CGROUP  = yes; # required by CFQ"

     

       98
       98
       +
             IOSCHED_DEADLINE = yes;

     

       99
       99
       +
             MQ_IOSCHED_DEADLINE = whenAtLeast "4.11" yes;

     

       100
       100
       +
             BFQ_GROUP_IOSCHED = whenAtLeast "4.12" yes;

     

       101
       101
       +
             MQ_IOSCHED_KYBER = whenAtLeast "4.12" yes;

     

       102
       102
       +
             IOSCHED_BFQ = whenAtLeast "4.12" module;

     

       103
       103
       +
           };

     

       92
       104
        
       

     

       93
       93
       -
         # Enable the kernel's built-in memory tester.

     

       94
       94
       -
         MEMTEST y

     

       105
       105
       +
           # Enable NUMA.

     

       106
       106
       +
           numa = {

     

       107
       107
       +
             NUMA  = option yes;

     

       108
       108
       +
           };

     

       95
       109
        
       

     

       96
       96
       -
         # Include the CFQ I/O scheduler in the kernel, rather than as a

     

       97
       97
       -
         # module, so that the initrd gets a good I/O scheduler.

     

       98
       98
       -
         IOSCHED_CFQ y

     

       99
       99
       -
         BLK_CGROUP y # required by CFQ

     

       100
       100
       -
         IOSCHED_DEADLINE y

     

       101
       101
       -
         ${optionalString (versionAtLeast version "4.11") ''

     

       102
       102
       -
           MQ_IOSCHED_DEADLINE y

     

       103
       103
       -
         ''}

     

       104
       104
       -
         ${optionalString (versionAtLeast version "4.12") ''

     

       105
       105
       -
           BFQ_GROUP_IOSCHED y

     

       106
       106
       -
           MQ_IOSCHED_KYBER y

     

       107
       107
       -
           IOSCHED_BFQ m

     

       108
       108
       -
         ''}

     

       110
       110
       +
           networking = {

     

       111
       111
       +
             NET                = yes;

     

       112
       112
       +
             IP_PNP             = no;

     

       113
       113
       +
             IPV6_PRIVACY       = whenOlder "3.13" yes;

     

       114
       114
       +
             NETFILTER          = yes;

     

       115
       115
       +
             NETFILTER_ADVANCED = yes;

     

       116
       116
       +
             IP_VS_PROTO_TCP    = yes;

     

       117
       117
       +
             IP_VS_PROTO_UDP    = yes;

     

       118
       118
       +
             IP_VS_PROTO_ESP    = yes;

     

       119
       119
       +
             IP_VS_PROTO_AH     = yes;

     

       120
       120
       +
             IP_DCCP_CCID3      = no; # experimental

     

       121
       121
       +
             CLS_U32_PERF       = yes;

     

       122
       122
       +
             CLS_U32_MARK       = yes;

     

       123
       123
       +
             BPF_JIT            = when (stdenv.system == "x86_64-linux") yes;

     

       124
       124
       +
             WAN                = yes;

     

       125
       125
       +
             # Required by systemd per-cgroup firewalling

     

       126
       126
       +
             CGROUP_BPF                  = option yes;

     

       127
       127
       +
             CGROUP_NET_PRIO             = yes; # Required by systemd

     

       128
       128
       +
             IP_ROUTE_VERBOSE            = yes;

     

       129
       129
       +
             IP_MROUTE_MULTIPLE_TABLES   = yes;

     

       130
       130
       +
             IP_MULTICAST                = yes;

     

       131
       131
       +
             IPV6_ROUTER_PREF            = yes;

     

       132
       132
       +
             IPV6_ROUTE_INFO             = yes;

     

       133
       133
       +
             IPV6_OPTIMISTIC_DAD         = yes;

     

       134
       134
       +
             IPV6_MULTIPLE_TABLES        = yes;

     

       135
       135
       +
             IPV6_SUBTREES               = yes;

     

       136
       136
       +
             IPV6_MROUTE                 = yes;

     

       137
       137
       +
             IPV6_MROUTE_MULTIPLE_TABLES = yes;

     

       138
       138
       +
             IPV6_PIMSM_V2               = yes;

     

       139
       139
       +
             IPV6_FOU_TUNNEL             = whenAtLeast "4.7" module;

     

       140
       140
       +
             NET_CLS_BPF                 = whenAtLeast "4.4" module;

     

       141
       141
       +
             NET_ACT_BPF                 = whenAtLeast "4.4" module;

     

       142
       142
       +
             L2TP_V3                     = yes;

     

       143
       143
       +
             L2TP_IP                     = module;

     

       144
       144
       +
             L2TP_ETH                    = module;

     

       145
       145
       +
             BRIDGE_VLAN_FILTERING       = yes;

     

       146
       146
       +
             BONDING                     = module;

     

       147
       147
       +
             NET_L3_MASTER_DEV           = option yes;

     

       148
       148
       +
             NET_FOU_IP_TUNNELS          = option yes;

     

       149
       149
       +
             IP_NF_TARGET_REDIRECT       = module;

     

       109
       150
        
       

     

       110
       110
       -
         # Enable NUMA.

     

       111
       111
       -
         NUMA? y

     

       151
       151
       +
             PPP_MULTILINK = yes; # PPP multilink support

     

       152
       152
       +
             PPP_FILTER    = yes;

     

       112
       153
        
       

     

       113
       113
       -
         # Disable some expensive (?) features.

     

       114
       114
       -
         PM_TRACE_RTC n

     

       154
       154
       +
             # needed for iwd WPS support (wpa_supplicant replacement)

     

       155
       155
       +
             KEY_DH_OPERATIONS = whenAtLeast "4.7" yes;

     

       156
       156
       +
           };

     

       115
       157
        
       

     

       116
       116
       -
         # Enable initrd support.

     

       117
       117
       -
         BLK_DEV_RAM y

     

       118
       118
       -
         BLK_DEV_INITRD y

     

       158
       158
       +
           wireless = {

     

       159
       159
       +
             CFG80211_WEXT         = option yes; # Without it, ipw2200 drivers don't build

     

       160
       160
       +
             IPW2100_MONITOR       = option yes; # support promiscuous mode

     

       161
       161
       +
             IPW2200_MONITOR       = option yes; # support promiscuous mode

     

       162
       162
       +
             HOSTAP_FIRMWARE       = option yes; # Support downloading firmware images with Host AP driver

     

       163
       163
       +
             HOSTAP_FIRMWARE_NVRAM = option yes;

     

       164
       164
       +
             ATH9K_PCI             = option yes; # Detect Atheros AR9xxx cards on PCI(e) bus

     

       165
       165
       +
             ATH9K_AHB             = option yes; # Ditto, AHB bus

     

       166
       166
       +
             B43_PHY_HT            = option (whenAtLeast "3.2" yes);

     

       167
       167
       +
             BCMA_HOST_PCI         = option yes;

     

       168
       168
       +
           };

     

       119
       169
        
       

     

       120
       120
       -
         # Enable various subsystems.

     

       121
       121
       -
         ACCESSIBILITY y # Accessibility support

     

       122
       122
       -
         AUXDISPLAY y # Auxiliary Display support

     

       123
       123
       -
         HIPPI y

     

       124
       124
       -
         MTD_COMPLEX_MAPPINGS y # needed for many devices

     

       125
       125
       -
         SCSI_LOWLEVEL y # enable lots of SCSI devices

     

       126
       126
       -
         SCSI_LOWLEVEL_PCMCIA y

     

       127
       127
       -
         SCSI_SAS_ATA y  # added to enable detection of hard drive

     

       128
       128
       -
         SPI y # needed for many devices

     

       129
       129
       -
         SPI_MASTER y

     

       130
       130
       -
         WAN y

     

       131
       131
       -
         ${optionalString (versionOlder version "4.17") ''

     

       132
       132
       -
           DONGLE y # Serial dongle support

     

       133
       133
       -
         ''}

     

       170
       170
       +
           fb = {

     

       171
       171
       +
             FB                  = yes;

     

       172
       172
       +
             FB_EFI              = yes;

     

       173
       173
       +
             FB_NVIDIA_I2C       = yes; # Enable DDC Support

     

       174
       174
       +
             FB_RIVA_I2C         = yes;

     

       175
       175
       +
             FB_ATY_CT           = yes; # Mach64 CT/VT/GT/LT (incl. 3D RAGE) support

     

       176
       176
       +
             FB_ATY_GX           = yes; # Mach64 GX support

     

       177
       177
       +
             FB_SAVAGE_I2C       = yes;

     

       178
       178
       +
             FB_SAVAGE_ACCEL     = yes;

     

       179
       179
       +
             FB_SIS_300          = yes;

     

       180
       180
       +
             FB_SIS_315          = yes;

     

       181
       181
       +
             FB_3DFX_ACCEL       = yes;

     

       182
       182
       +
             FB_VESA             = yes;

     

       183
       183
       +
             FRAMEBUFFER_CONSOLE = yes;

     

       184
       184
       +
             FRAMEBUFFER_CONSOLE_ROTATION = yes;

     

       185
       185
       +
             FB_GEODE            = when (versionOlder version "3.9" || stdenv.system == "i686-linux") yes;

     

       186
       186
       +
           };

     

       134
       187
        
       

     

       135
       135
       -
         # Networking options.

     

       136
       136
       -
         NET y

     

       137
       137
       -
         IP_PNP n

     

       138
       138
       -
         ${optionalString (versionOlder version "3.13") ''

     

       139
       139
       -
           IPV6_PRIVACY y

     

       140
       140
       -
         ''}

     

       141
       141
       -
         NETFILTER y

     

       142
       142
       -
         NETFILTER_ADVANCED y

     

       143
       143
       -
         CGROUP_BPF? y # Required by systemd per-cgroup firewalling

     

       144
       144
       -
         CGROUP_NET_PRIO y # Required by systemd

     

       145
       145
       -
         IP_ROUTE_VERBOSE y

     

       146
       146
       -
         IP_MROUTE_MULTIPLE_TABLES y

     

       147
       147
       -
         IP_VS_PROTO_TCP y

     

       148
       148
       -
         IP_VS_PROTO_UDP y

     

       149
       149
       -
         IP_VS_PROTO_ESP y

     

       150
       150
       -
         IP_VS_PROTO_AH y

     

       151
       151
       -
         IP_DCCP_CCID3 n # experimental

     

       152
       152
       -
         IP_MULTICAST y

     

       153
       153
       -
         IPV6_ROUTER_PREF y

     

       154
       154
       -
         IPV6_ROUTE_INFO y

     

       155
       155
       -
         IPV6_OPTIMISTIC_DAD y

     

       156
       156
       -
         IPV6_MULTIPLE_TABLES y

     

       157
       157
       -
         IPV6_SUBTREES y

     

       158
       158
       -
         IPV6_MROUTE y

     

       159
       159
       -
         IPV6_MROUTE_MULTIPLE_TABLES y

     

       160
       160
       -
         IPV6_PIMSM_V2 y

     

       161
       161
       -
         ${optionalString (versionAtLeast version "4.7") ''

     

       162
       162
       -
           IPV6_FOU_TUNNEL m

     

       163
       163
       -
         ''}

     

       164
       164
       -
         CLS_U32_PERF y

     

       165
       165
       -
         CLS_U32_MARK y

     

       166
       166
       -
         ${optionalString (stdenv.system == "x86_64-linux") ''

     

       167
       167
       -
           BPF_JIT y

     

       168
       168
       -
         ''}

     

       169
       169
       -
         ${optionalString (versionAtLeast version "4.4") ''

     

       170
       170
       -
           NET_CLS_BPF m

     

       171
       171
       -
           NET_ACT_BPF m

     

       172
       172
       -
         ''}

     

       173
       173
       -
         L2TP_V3 y

     

       174
       174
       -
         L2TP_IP m

     

       175
       175
       -
         L2TP_ETH m

     

       176
       176
       -
         BRIDGE_VLAN_FILTERING y

     

       177
       177
       -
         BONDING m

     

       178
       178
       -
         NET_L3_MASTER_DEV? y

     

       179
       179
       -
         NET_FOU_IP_TUNNELS? y

     

       180
       180
       -
         IP_NF_TARGET_REDIRECT m

     

       188
       188
       +
           video = {

     

       189
       189
       +
             # Enable KMS for devices whose X.org driver supports it

     

       190
       190
       +
             DRM_I915_KMS           = whenOlder "4.3" yes;

     

       191
       191
       +
             # Allow specifying custom EDID on the kernel command line

     

       192
       192
       +
             DRM_LOAD_EDID_FIRMWARE = yes;

     

       193
       193
       +
             DRM_RADEON_KMS         = option (whenOlder "3.9" yes);

     

       194
       194
       +
             VGA_SWITCHEROO         = yes; # Hybrid graphics support

     

       195
       195
       +
             DRM_GMA600             = yes;

     

       196
       196
       +
             DRM_GMA3600            = yes;

     

       197
       197
       +
             # necessary for amdgpu polaris support

     

       198
       198
       +
             DRM_AMD_POWERPLAY = whenBetween "4.5" "4.9" yes;

     

       199
       199
       +
             # (experimental) amdgpu support for verde and newer chipsets

     

       200
       200
       +
             DRM_AMDGPU_SI = whenAtLeast "4.9" yes;

     

       201
       201
       +
             # (stable) amdgpu support for bonaire and newer chipsets

     

       202
       202
       +
             DRM_AMDGPU_CIK = whenAtLeast "4.9" yes;

     

       203
       203
       +
             DRM_I915_GVT = whenAtLeast "4.16" yes;

     

       204
       204
       +
             DRM_I915_GVT_KVMGT = whenAtLeast "4.16" module;

     

       205
       205
       +
           };

     

       181
       206
        
       

     

       182
       182
       -
         # Wireless networking.

     

       183
       183
       -
         CFG80211_WEXT? y # Without it, ipw2200 drivers don't build

     

       184
       184
       -
         IPW2100_MONITOR? y # support promiscuous mode

     

       185
       185
       -
         IPW2200_MONITOR? y # support promiscuous mode

     

       186
       186
       -
         HOSTAP_FIRMWARE? y # Support downloading firmware images with Host AP driver

     

       187
       187
       -
         HOSTAP_FIRMWARE_NVRAM? y

     

       188
       188
       -
         ATH9K_PCI? y # Detect Atheros AR9xxx cards on PCI(e) bus

     

       189
       189
       -
         ATH9K_AHB? y # Ditto, AHB bus

     

       190
       190
       -
         B43_PHY_HT? y

     

       191
       191
       -
         BCMA_HOST_PCI? y

     

       207
       207
       +
           sound = {

     

       208
       208
       +
             SND_DYNAMIC_MINORS  = yes;

     

       209
       209
       +
             SND_AC97_POWER_SAVE = yes; # AC97 Power-Saving Mode

     

       210
       210
       +
             SND_HDA_INPUT_BEEP  = yes; # Support digital beep via input layer

     

       211
       211
       +
             SND_HDA_RECONFIG    = yes; # Support reconfiguration of jack functions

     

       212
       212
       +
             # Support configuring jack functions via fw mechanism at boot

     

       213
       213
       +
             SND_HDA_PATCH_LOADER = yes;

     

       214
       214
       +
             SND_USB_CAIAQ_INPUT = yes;

     

       215
       215
       +
             # Enable PSS mixer (Beethoven ADSP-16 and other compatible)

     

       216
       216
       +
             PSS_MIXER           = whenOlder "4.12" yes;

     

       217
       217
       +
           };

     

       192
       218
        
       

     

       193
       193
       -
         # Enable various FB devices.

     

       194
       194
       -
         FB y

     

       195
       195
       -
         FB_EFI y

     

       196
       196
       -
         FB_NVIDIA_I2C y # Enable DDC Support

     

       197
       197
       -
         FB_RIVA_I2C y

     

       198
       198
       -
         FB_ATY_CT y # Mach64 CT/VT/GT/LT (incl. 3D RAGE) support

     

       199
       199
       -
         FB_ATY_GX y # Mach64 GX support

     

       200
       200
       -
         FB_SAVAGE_I2C y

     

       201
       201
       -
         FB_SAVAGE_ACCEL y

     

       202
       202
       -
         FB_SIS_300 y

     

       203
       203
       -
         FB_SIS_315 y

     

       204
       204
       -
         FB_3DFX_ACCEL y

     

       205
       205
       -
         FB_VESA y

     

       206
       206
       -
         FRAMEBUFFER_CONSOLE y

     

       207
       207
       -
         FRAMEBUFFER_CONSOLE_ROTATION y

     

       208
       208
       -
         ${optionalString (stdenv.system == "i686-linux") ''

     

       209
       209
       -
           FB_GEODE y

     

       210
       210
       -
         ''}

     

       219
       219
       +
           # Include firmware for various USB serial devices.

     

       220
       220
       +
           # Only applicable for kernels below 4.16, after that no firmware is shipped in the kernel tree.

     

       221
       221
       +
           usb-serial = {

     

       222
       222
       +
             USB_SERIAL_GENERIC          = yes; # USB Generic Serial Driver

     

       223
       223
       +
           } // optionalAttrs (versionOlder version "4.16") {

     

       224
       224
       +
             USB_SERIAL_KEYSPAN_MPR      = yes; # include firmware for various USB serial devices

     

       225
       225
       +
             USB_SERIAL_KEYSPAN_USA28    = yes;

     

       226
       226
       +
             USB_SERIAL_KEYSPAN_USA28X   = yes;

     

       227
       227
       +
             USB_SERIAL_KEYSPAN_USA28XA  = yes;

     

       228
       228
       +
             USB_SERIAL_KEYSPAN_USA28XB  = yes;

     

       229
       229
       +
             USB_SERIAL_KEYSPAN_USA19    = yes;

     

       230
       230
       +
             USB_SERIAL_KEYSPAN_USA18X   = yes;

     

       231
       231
       +
             USB_SERIAL_KEYSPAN_USA19W   = yes;

     

       232
       232
       +
             USB_SERIAL_KEYSPAN_USA19QW  = yes;

     

       233
       233
       +
             USB_SERIAL_KEYSPAN_USA19QI  = yes;

     

       234
       234
       +
             USB_SERIAL_KEYSPAN_USA49W   = yes;

     

       235
       235
       +
             USB_SERIAL_KEYSPAN_USA49WLC = yes;

     

       236
       236
       +
           };

     

       211
       237
        
       

     

       212
       212
       -
         # Video configuration.

     

       213
       213
       -
         # Enable KMS for devices whose X.org driver supports it.

     

       214
       214
       -
         ${optionalString (versionOlder version "4.3") ''

     

       215
       215
       -
           DRM_I915_KMS y

     

       216
       216
       -
         ''}

     

       217
       217
       -
         # iGVT-g support

     

       218
       218
       -
         ${optionalString (versionAtLeast version "4.16") ''

     

       219
       219
       -
           DRM_I915_GVT y

     

       220
       220
       -
           DRM_I915_GVT_KVMGT m

     

       221
       221
       -
         ''}

     

       222
       222
       -
         # Allow specifying custom EDID on the kernel command line

     

       223
       223
       -
         DRM_LOAD_EDID_FIRMWARE y

     

       224
       224
       -
         VGA_SWITCHEROO y # Hybrid graphics support

     

       225
       225
       -
         DRM_GMA600 y

     

       226
       226
       -
         DRM_GMA3600 y

     

       227
       227
       -
         ${optionalString (versionAtLeast version "4.5" && (versionOlder version "4.9")) ''

     

       228
       228
       -
           DRM_AMD_POWERPLAY y # necessary for amdgpu polaris support

     

       229
       229
       -
         ''}

     

       230
       230
       -
         ${optionalString (versionAtLeast version "4.9") ''

     

       231
       231
       -
           DRM_AMDGPU_SI y # (experimental) amdgpu support for verde and newer chipsets

     

       232
       232
       -
           DRM_AMDGPU_CIK y # (stable) amdgpu support for bonaire and newer chipsets

     

       233
       233
       -
         ''}

     

       238
       238
       +
           usb = {

     

       239
       239
       +
             USB_DEBUG            = option (whenOlder "3.15" no);

     

       240
       240
       +
             USB_EHCI_ROOT_HUB_TT = yes; # Root Hub Transaction Translators

     

       241
       241
       +
             USB_EHCI_TT_NEWSCHED = yes; # Improved transaction translator scheduling

     

       242
       242
       +
           };

     

       234
       243
        
       

     

       235
       235
       -
         # Sound.

     

       236
       236
       -
         SND_DYNAMIC_MINORS y

     

       237
       237
       -
         SND_AC97_POWER_SAVE y # AC97 Power-Saving Mode

     

       238
       238
       -
         SND_HDA_INPUT_BEEP y # Support digital beep via input layer

     

       239
       239
       -
         SND_HDA_RECONFIG y # Support reconfiguration of jack functions

     

       240
       240
       -
         SND_HDA_PATCH_LOADER y # Support configuring jack functions via fw mechanism at boot

     

       241
       241
       -
         SND_USB_CAIAQ_INPUT y

     

       242
       242
       -
         ${optionalString (versionOlder version "4.12") ''

     

       243
       243
       -
           PSS_MIXER y # Enable PSS mixer (Beethoven ADSP-16 and other compatible)

     

       244
       244
       -
         ''}

     

       244
       244
       +
           # Filesystem options - in particular, enable extended attributes and

     

       245
       245
       +
           # ACLs for all filesystems that support them.

     

       246
       246
       +
           filesystem = {

     

       247
       247
       +
             FANOTIFY        = yes;

     

       248
       248
       +
             TMPFS           = yes;

     

       249
       249
       +
             TMPFS_POSIX_ACL = yes;

     

       250
       250
       +
             FS_ENCRYPTION   = option (whenAtLeast "4.9" module);

     

       245
       251
        
       

     

       246
       246
       -
         # USB serial devices.

     

       247
       247
       -
         USB_SERIAL_GENERIC y # USB Generic Serial Driver

     

       252
       252
       +
             EXT2_FS_XATTR     = yes;

     

       253
       253
       +
             EXT2_FS_POSIX_ACL = yes;

     

       254
       254
       +
             EXT2_FS_SECURITY  = yes;

     

       255
       255
       +
             EXT2_FS_XIP       = whenOlder "4.0" yes; # Ext2 execute in place support

     

       248
       256
        
       

     

       249
       249
       -
         # Include firmware for various USB serial devices.

     

       250
       250
       -
         # Only applicable for kernels below 4.16, after that no firmware is shipped in the kernel tree.

     

       251
       251
       -
         ${optionalString (versionOlder version "4.16") ''

     

       252
       252
       -
           USB_SERIAL_KEYSPAN_MPR y

     

       253
       253
       -
           USB_SERIAL_KEYSPAN_USA28 y

     

       254
       254
       -
           USB_SERIAL_KEYSPAN_USA28X y

     

       255
       255
       -
           USB_SERIAL_KEYSPAN_USA28XA y

     

       256
       256
       -
           USB_SERIAL_KEYSPAN_USA28XB y

     

       257
       257
       -
           USB_SERIAL_KEYSPAN_USA19 y

     

       258
       258
       -
           USB_SERIAL_KEYSPAN_USA18X y

     

       259
       259
       -
           USB_SERIAL_KEYSPAN_USA19W y

     

       260
       260
       -
           USB_SERIAL_KEYSPAN_USA19QW y

     

       261
       261
       -
           USB_SERIAL_KEYSPAN_USA19QI y

     

       262
       262
       -
           USB_SERIAL_KEYSPAN_USA49W y

     

       263
       263
       -
           USB_SERIAL_KEYSPAN_USA49WLC y

     

       264
       264
       -
         ''}

     

       257
       257
       +
             EXT3_FS_POSIX_ACL = yes;

     

       258
       258
       +
             EXT3_FS_SECURITY  = yes;

     

       265
       259
        
       

     

       266
       266
       -
         # Device mapper (RAID, LVM, etc.)

     

       267
       267
       -
         MD y

     

       260
       260
       +
             EXT4_FS_POSIX_ACL = yes;

     

       261
       261
       +
             EXT4_FS_SECURITY  = yes;

     

       262
       262
       +
             EXT4_ENCRYPTION   = option ((if (versionOlder version "4.8") then module else yes));

     

       268
       263
        
       

     

       269
       269
       -
         # Filesystem options - in particular, enable extended attributes and

     

       270
       270
       -
         # ACLs for all filesystems that support them.

     

       271
       271
       -
         FANOTIFY y

     

       272
       272
       -
         TMPFS y

     

       273
       273
       -
         TMPFS_POSIX_ACL y

     

       274
       274
       -
         ${optionalString (versionAtLeast version "4.9") ''

     

       275
       275
       -
           FS_ENCRYPTION? m

     

       276
       276
       -
         ''}

     

       277
       277
       -
         EXT2_FS_XATTR y

     

       278
       278
       -
         EXT2_FS_POSIX_ACL y

     

       279
       279
       -
         EXT2_FS_SECURITY y

     

       280
       280
       -
         ${optionalString (versionOlder version "4.0") ''

     

       281
       281
       -
           EXT2_FS_XIP y # Ext2 execute in place support

     

       282
       282
       -
         ''}

     

       283
       283
       -
         EXT3_FS_POSIX_ACL y

     

       284
       284
       -
         EXT3_FS_SECURITY y

     

       285
       285
       -
         EXT4_FS_POSIX_ACL y

     

       286
       286
       -
         EXT4_ENCRYPTION? ${if versionOlder version "4.8" then "m" else "y"}

     

       287
       287
       -
         EXT4_FS_SECURITY y

     

       288
       288
       -
         REISERFS_FS_XATTR? y

     

       289
       289
       -
         REISERFS_FS_POSIX_ACL? y

     

       290
       290
       -
         REISERFS_FS_SECURITY? y

     

       291
       291
       -
         JFS_POSIX_ACL? y

     

       292
       292
       -
         JFS_SECURITY? y

     

       293
       293
       -
         XFS_QUOTA? y

     

       294
       294
       -
         XFS_POSIX_ACL? y

     

       295
       295
       -
         XFS_RT? y # XFS Realtime subvolume support

     

       296
       296
       -
         OCFS2_DEBUG_MASKLOG? n

     

       297
       297
       -
         BTRFS_FS_POSIX_ACL y

     

       298
       298
       -
         UBIFS_FS_ADVANCED_COMPR? y

     

       299
       299
       -
         F2FS_FS m

     

       300
       300
       -
         F2FS_FS_SECURITY? y

     

       301
       301
       -
         F2FS_FS_ENCRYPTION? y

     

       302
       302
       -
         UDF_FS m

     

       303
       303
       -
         ${optionalString (versionAtLeast version "4.0" && versionOlder version "4.6") ''

     

       304
       304
       -
           NFSD_PNFS y

     

       305
       305
       -
         ''}

     

       306
       306
       -
         NFSD_V2_ACL y

     

       307
       307
       -
         NFSD_V3 y

     

       308
       308
       -
         NFSD_V3_ACL y

     

       309
       309
       -
         NFSD_V4 y

     

       310
       310
       -
         ${optionalString (versionAtLeast version "3.11") ''

     

       311
       311
       -
           NFSD_V4_SECURITY_LABEL y

     

       312
       312
       -
         ''}

     

       313
       313
       -
         NFS_FSCACHE y

     

       314
       314
       -
         NFS_SWAP y

     

       315
       315
       -
         NFS_V3_ACL y

     

       316
       316
       -
         ${optionalString (versionAtLeast version "3.11") ''

     

       317
       317
       -
           NFS_V4_1 y  # NFSv4.1 client support

     

       318
       318
       -
           NFS_V4_2 y

     

       319
       319
       -
           NFS_V4_SECURITY_LABEL y

     

       320
       320
       -
         ''}

     

       321
       321
       -
         CIFS_XATTR y

     

       322
       322
       -
         CIFS_POSIX y

     

       323
       323
       -
         CIFS_FSCACHE y

     

       324
       324
       -
         CIFS_STATS y

     

       325
       325
       -
         CIFS_WEAK_PW_HASH y

     

       326
       326
       -
         CIFS_UPCALL y

     

       327
       327
       -
         CIFS_ACL y

     

       328
       328
       -
         CIFS_DFS_UPCALL y

     

       329
       329
       -
         ${optionalString (versionOlder version "4.13") ''

     

       330
       330
       -
           CIFS_SMB2 y

     

       331
       331
       -
         ''}

     

       332
       332
       -
         ${optionalString (versionAtLeast version "3.12") ''

     

       333
       333
       -
           CEPH_FSCACHE y

     

       334
       334
       -
         ''}

     

       335
       335
       -
         ${optionalString (versionAtLeast version "3.14") ''

     

       336
       336
       -
           CEPH_FS_POSIX_ACL y

     

       337
       337
       -
         ''}

     

       338
       338
       -
         ${optionalString (versionAtLeast version "3.13") ''

     

       339
       339
       -
           SQUASHFS_FILE_DIRECT y

     

       340
       340
       -
           SQUASHFS_DECOMP_MULTI_PERCPU y

     

       341
       341
       -
         ''}

     

       342
       342
       -
         SQUASHFS_XATTR y

     

       343
       343
       -
         SQUASHFS_ZLIB y

     

       344
       344
       -
         SQUASHFS_LZO y

     

       345
       345
       -
         SQUASHFS_XZ y

     

       346
       346
       -
         ${optionalString (versionAtLeast version "3.19") ''

     

       347
       347
       -
           SQUASHFS_LZ4 y

     

       348
       348
       -
         ''}

     

       264
       264
       +
             REISERFS_FS_XATTR     = option yes;

     

       265
       265
       +
             REISERFS_FS_POSIX_ACL = option yes;

     

       266
       266
       +
             REISERFS_FS_SECURITY  = option yes;

     

       349
       267
        
       

     

       350
       350
       -
         # Native Language Support modules, needed by some filesystems

     

       351
       351
       -
         NLS y

     

       352
       352
       -
         NLS_DEFAULT utf8

     

       353
       353
       -
         NLS_UTF8 m

     

       354
       354
       -
         NLS_CODEPAGE_437 m # VFAT default for the codepage= mount option

     

       355
       355
       -
         NLS_ISO8859_1 m    # VFAT default for the iocharset= mount option

     

       268
       268
       +
             JFS_POSIX_ACL = option yes;

     

       269
       269
       +
             JFS_SECURITY  = option yes;

     

       356
       270
        
       

     

       357
       357
       -
         # Runtime security tests

     

       358
       358
       -
         ${optionalString (versionOlder version "4.11") ''

     

       359
       359
       -
           DEBUG_SET_MODULE_RONX? y # Detect writes to read-only module pages

     

       360
       360
       -
         ''}

     

       271
       271
       +
             XFS_QUOTA     = option yes;

     

       272
       272
       +
             XFS_POSIX_ACL = option yes;

     

       273
       273
       +
             XFS_RT        = option yes; # XFS Realtime subvolume support

     

       361
       274
        
       

     

       362
       362
       -
         # Security related features.

     

       363
       363
       -
         RANDOMIZE_BASE? y

     

       364
       364
       -
         STRICT_DEVMEM? y # Filter access to /dev/mem

     

       365
       365
       -
         SECURITY_SELINUX_BOOTPARAM_VALUE 0 # Disable SELinux by default

     

       366
       366
       -
         SECURITY_YAMA? y # Prevent processes from ptracing non-children processes

     

       367
       367
       -
         DEVKMEM n # Disable /dev/kmem

     

       368
       368
       -
         ${optionalString (! stdenv.hostPlatform.isAarch32)

     

       369
       369
       -
           (if versionOlder version "3.14" then ''

     

       370
       370
       -
               CC_STACKPROTECTOR? y # Detect buffer overflows on the stack

     

       371
       371
       -
             '' else optionalString (versionOlder version "4.18") ''

     

       372
       372
       -
               CC_STACKPROTECTOR_REGULAR? y

     

       373
       373
       -
             '')}

     

       374
       374
       -
         ${optionalString (versionAtLeast version "3.12") ''

     

       375
       375
       -
           USER_NS y # Support for user namespaces

     

       376
       376
       -
         ''}

     

       275
       275
       +
             OCFS2_DEBUG_MASKLOG = option no;

     

       377
       276
        
       

     

       378
       378
       -
         # AppArmor support

     

       379
       379
       -
         SECURITY_APPARMOR y

     

       380
       380
       -
         DEFAULT_SECURITY_APPARMOR y

     

       277
       277
       +
             BTRFS_FS_POSIX_ACL = yes;

     

       381
       278
        
       

     

       382
       382
       -
         # Microcode loading support

     

       383
       383
       -
         MICROCODE y

     

       384
       384
       -
         MICROCODE_INTEL y

     

       385
       385
       -
         MICROCODE_AMD y

     

       386
       386
       -
         ${optionalString (versionAtLeast version "3.11" && versionOlder version "4.4") ''

     

       387
       387
       -
           MICROCODE_EARLY y

     

       388
       388
       -
           MICROCODE_INTEL_EARLY y

     

       389
       389
       -
           MICROCODE_AMD_EARLY y

     

       390
       390
       -
         ''}

     

       279
       279
       +
             UBIFS_FS_ADVANCED_COMPR = option yes;

     

       391
       280
        
       

     

       392
       392
       -
         ${optionalString (versionAtLeast version "4.10") ''

     

       393
       393
       -
           # Write Back Throttling

     

       394
       394
       -
           # https://lwn.net/Articles/682582/

     

       395
       395
       -
           # https://bugzilla.kernel.org/show_bug.cgi?id=12309#c655

     

       396
       396
       -
           BLK_WBT y

     

       397
       397
       -
           BLK_WBT_SQ y

     

       398
       398
       -
           BLK_WBT_MQ y

     

       399
       399
       -
         ''}

     

       281
       281
       +
             F2FS_FS             = module;

     

       282
       282
       +
             F2FS_FS_SECURITY    = option yes;

     

       283
       283
       +
             F2FS_FS_ENCRYPTION  = option yes;

     

       284
       284
       +
             UDF_FS              = module;

     

       400
       285
        
       

     

       401
       401
       -
         # Misc. options.

     

       402
       402
       -
         8139TOO_8129 y

     

       403
       403
       -
         8139TOO_PIO n # PIO is slower

     

       404
       404
       -
         AIC79XX_DEBUG_ENABLE n

     

       405
       405
       -
         AIC7XXX_DEBUG_ENABLE n

     

       406
       406
       -
         AIC94XX_DEBUG n

     

       407
       407
       -
         ${optionalString (versionAtLeast version "3.3" && versionOlder version "3.13") ''

     

       408
       408
       -
           AUDIT_LOGINUID_IMMUTABLE y

     

       409
       409
       -
         ''}

     

       410
       410
       -
         ${optionalString (versionOlder version "4.4") ''

     

       411
       411
       -
           B43_PCMCIA? y

     

       412
       412
       -
         ''}

     

       413
       413
       -
         BLK_DEV_INITRD y

     

       414
       414
       -
         BLK_DEV_INTEGRITY y

     

       415
       415
       -
         BSD_PROCESS_ACCT_V3 y

     

       416
       416
       -
         BT_HCIUART_BCSP? y

     

       417
       417
       -
         BT_HCIUART_H4? y # UART (H4) protocol support

     

       418
       418
       -
         BT_HCIUART_LL? y

     

       419
       419
       -
         BT_RFCOMM_TTY? y # RFCOMM TTY support

     

       420
       420
       -
         CLEANCACHE? y

     

       421
       421
       -
         CRASH_DUMP? n

     

       422
       422
       -
         DVB_DYNAMIC_MINORS? y # we use udev

     

       423
       423
       -
         EFI_STUB y # EFI bootloader in the bzImage itself

     

       424
       424
       -
         CGROUPS y # used by systemd

     

       425
       425
       -
         FHANDLE y # used by systemd

     

       426
       426
       -
         SECCOMP y # used by systemd >= 231

     

       427
       427
       -
         SECCOMP_FILTER y # ditto

     

       428
       428
       -
         POSIX_MQUEUE y

     

       429
       429
       -
         FRONTSWAP y

     

       430
       430
       -
         FUSION y # Fusion MPT device support

     

       431
       431
       -
         IDE n # deprecated IDE support

     

       432
       432
       -
         ${optionalString (versionAtLeast version "4.3") ''

     

       433
       433
       -
           IDLE_PAGE_TRACKING y

     

       434
       434
       -
         ''}

     

       435
       435
       -
         ${optionalString (versionOlder version "4.17") ''

     

       436
       436
       -
           IRDA_ULTRA y # Ultra (connectionless) protocol

     

       437
       437
       -
         ''}

     

       438
       438
       -
         JOYSTICK_IFORCE_232? y # I-Force Serial joysticks and wheels

     

       439
       439
       -
         JOYSTICK_IFORCE_USB? y # I-Force USB joysticks and wheels

     

       440
       440
       -
         JOYSTICK_XPAD_FF? y # X-Box gamepad rumble support

     

       441
       441
       -
         JOYSTICK_XPAD_LEDS? y # LED Support for Xbox360 controller 'BigX' LED

     

       442
       442
       -
         KEXEC_FILE? y

     

       443
       443
       -
         KEXEC_JUMP? y

     

       444
       444
       -
         LDM_PARTITION y # Windows Logical Disk Manager (Dynamic Disk) support

     

       445
       445
       -
         LOGIRUMBLEPAD2_FF y # Logitech Rumblepad 2 force feedback

     

       446
       446
       -
         LOGO n # not needed

     

       447
       447
       -
         MEDIA_ATTACH y

     

       448
       448
       -
         MEGARAID_NEWGEN y

     

       449
       449
       -
         ${optionalString (versionAtLeast version "3.15" && versionOlder version "4.8") ''

     

       450
       450
       -
           MLX4_EN_VXLAN y

     

       451
       451
       -
         ''}

     

       452
       452
       -
         ${optionalString (versionOlder version "4.9") ''

     

       453
       453
       -
           MODVERSIONS y

     

       454
       454
       -
         ''}

     

       455
       455
       -
         MOUSE_PS2_ELANTECH y # Elantech PS/2 protocol extension

     

       456
       456
       -
         MTRR_SANITIZER y

     

       457
       457
       -
         NET_FC y # Fibre Channel driver support

     

       458
       458
       -
         ${optionalString (versionAtLeast version "3.11") ''

     

       459
       459
       -
           PINCTRL_BAYTRAIL y # GPIO on Intel Bay Trail, for some Chromebook internal eMMC disks

     

       460
       460
       -
         ''}

     

       461
       461
       -
         MMC_BLOCK_MINORS 32 # 8 is default. Modern gpt tables on eMMC may go far beyond 8.

     

       462
       462
       -
         PPP_MULTILINK y # PPP multilink support

     

       463
       463
       -
         PPP_FILTER y

     

       464
       464
       -
         REGULATOR y # Voltage and Current Regulator Support

     

       465
       465
       -
         RC_DEVICES? y # Enable IR devices

     

       466
       466
       -
         RT2800USB_RT53XX y

     

       467
       467
       -
         RT2800USB_RT55XX y

     

       468
       468
       -
         SCHED_AUTOGROUP y

     

       469
       469
       -
         CFS_BANDWIDTH y

     

       470
       470
       -
         SCSI_LOGGING y # SCSI logging facility

     

       471
       471
       -
         SERIAL_8250 y # 8250/16550 and compatible serial support

     

       472
       472
       -
         SLIP_COMPRESSED y # CSLIP compressed headers

     

       473
       473
       -
         SLIP_SMART y

     

       474
       474
       -
         HWMON y

     

       475
       475
       -
         THERMAL_HWMON y # Hardware monitoring support

     

       476
       476
       -
         ${optionalString (versionAtLeast version "3.15") ''

     

       477
       477
       -
           UEVENT_HELPER n

     

       478
       478
       -
         ''}

     

       479
       479
       -
         ${optionalString (versionOlder version "3.15") ''

     

       480
       480
       -
           USB_DEBUG? n

     

       481
       481
       -
         ''}

     

       482
       482
       -
         USB_EHCI_ROOT_HUB_TT y # Root Hub Transaction Translators

     

       483
       483
       -
         USB_EHCI_TT_NEWSCHED y # Improved transaction translator scheduling

     

       484
       484
       -
         ${optionalString (versionAtLeast version "4.3") ''

     

       485
       485
       -
           USERFAULTFD y

     

       486
       486
       -
         ''}

     

       487
       487
       -
         X86_CHECK_BIOS_CORRUPTION y

     

       488
       488
       -
         X86_MCE y

     

       286
       286
       +
             NFSD_PNFS              = whenBetween "4.0" "4.6" yes;

     

       287
       287
       +
             NFSD_V2_ACL            = yes;

     

       288
       288
       +
             NFSD_V3                = yes;

     

       289
       289
       +
             NFSD_V3_ACL            = yes;

     

       290
       290
       +
             NFSD_V4                = yes;

     

       291
       291
       +
             NFSD_V4_SECURITY_LABEL = whenAtLeast "3.11" yes;

     

       292
       292
       +
       

     

       293
       293
       +
             NFS_FSCACHE           = yes;

     

       294
       294
       +
             NFS_SWAP              = whenAtLeast "3.6" yes;

     

       295
       295
       +
             NFS_V3_ACL            = yes;

     

       296
       296
       +
             NFS_V4_1              = whenAtLeast "3.11" yes;  # NFSv4.1 client support

     

       297
       297
       +
             NFS_V4_2              = whenAtLeast "3.11" yes;

     

       298
       298
       +
             NFS_V4_SECURITY_LABEL = whenAtLeast "3.11" yes;

     

       299
       299
       +
       

     

       300
       300
       +
             CIFS_XATTR        = yes;

     

       301
       301
       +
             CIFS_POSIX        = yes;

     

       302
       302
       +
             CIFS_FSCACHE      = yes;

     

       303
       303
       +
             CIFS_STATS        = yes;

     

       304
       304
       +
             CIFS_WEAK_PW_HASH = yes;

     

       305
       305
       +
             CIFS_UPCALL       = yes;

     

       306
       306
       +
             CIFS_ACL          = yes;

     

       307
       307
       +
             CIFS_DFS_UPCALL   = yes;

     

       308
       308
       +
             CIFS_SMB2         = whenOlder "4.13" yes;

     

       309
       309
       +
       

     

       310
       310
       +
             CEPH_FSCACHE      = whenAtLeast "3.12" yes;

     

       311
       311
       +
             CEPH_FS_POSIX_ACL = whenAtLeast "3.14" yes;

     

       312
       312
       +
       

     

       313
       313
       +
             SQUASHFS_FILE_DIRECT         = whenAtLeast "3.13" yes;

     

       314
       314
       +
             SQUASHFS_DECOMP_MULTI_PERCPU = whenAtLeast "3.13" yes;

     

       315
       315
       +
             SQUASHFS_XATTR               = yes;

     

       316
       316
       +
             SQUASHFS_ZLIB                = yes;

     

       317
       317
       +
             SQUASHFS_LZO                 = yes;

     

       318
       318
       +
             SQUASHFS_XZ                  = yes;

     

       319
       319
       +
             SQUASHFS_LZ4                 = whenAtLeast "3.19" yes;

     

       320
       320
       +
       

     

       321
       321
       +
             # Native Language Support modules, needed by some filesystems

     

       322
       322
       +
             NLS   = yes;

     

       323
       323
       +
             NLS_DEFAULT =  "utf8";

     

       324
       324
       +
             NLS_UTF8    = module;

     

       325
       325
       +
             NLS_CODEPAGE_437 = module; # VFAT default for the codepage= mount option

     

       326
       326
       +
             NLS_ISO8859_1 = module;    # VFAT default for the iocharset= mount option

     

       327
       327
       +
       

     

       328
       328
       +
             DEVTMPFS = yes;

     

       329
       329
       +
           };

     

       330
       330
       +
       

     

       331
       331
       +
           security = {

     

       332
       332
       +
             # Detect writes to read-only module pages

     

       333
       333
       +
             DEBUG_SET_MODULE_RONX            = option (whenOlder "4.11" yes);

     

       334
       334
       +
             RANDOMIZE_BASE                   = option yes;

     

       335
       335
       +
             STRICT_DEVMEM                    = option yes; # Filter access to /dev/mem

     

       336
       336
       +
             SECURITY_SELINUX_BOOTPARAM_VALUE = "0"; # Disable SELinux by default

     

       337
       337
       +
             # Prevent processes from ptracing non-children processes

     

       338
       338
       +
             SECURITY_YAMA                    = option yes;

     

       339
       339
       +
             DEVKMEM                          = when (!grsecurity) no; # Disable /dev/kmem

     

       340
       340
       +
       

     

       341
       341
       +
             USER_NS                          = whenAtLeast "3.12" yes; # Support for user namespaces

     

       342
       342
       +
       

     

       343
       343
       +
             SECURITY_APPARMOR                = yes;

     

       344
       344
       +
             DEFAULT_SECURITY_APPARMOR        = yes;

     

       345
       345
       +
       

     

       346
       346
       +
             AUDIT_LOGINUID_IMMUTABLE = whenBetween "3.3" "3.13" yes;

     

       347
       347
       +
           } // optionalAttrs (!stdenv.hostPlatform.isAarch32) {

     

       348
       348
       +
       

     

       349
       349
       +
             # Detect buffer overflows on the stack

     

       350
       350
       +
             CC_STACKPROTECTOR         = option (whenOlder "3.14" yes);

     

       351
       351
       +
             CC_STACKPROTECTOR_REGULAR = option (whenOlder "4.18" yes);

     

       352
       352
       +
           };

     

       353
       353
       +
       

     

       354
       354
       +
           microcode = {

     

       355
       355
       +
             MICROCODE       = yes;

     

       356
       356
       +
             MICROCODE_INTEL = yes;

     

       357
       357
       +
             MICROCODE_AMD   = yes;

     

       358
       358
       +
       

     

       359
       359
       +
             MICROCODE_EARLY       = whenBetween "3.11" "4.4" yes;

     

       360
       360
       +
             MICROCODE_INTEL_EARLY = whenBetween "3.11" "4.4" yes;

     

       361
       361
       +
             MICROCODE_AMD_EARLY   = whenBetween "3.11" "4.4" yes;

     

       362
       362
       +
           } // optionalAttrs (versionAtLeast version "4.10") {

     

       363
       363
       +
             # Write Back Throttling

     

       364
       364
       +
             # https://lwn.net/Articles/682582/

     

       365
       365
       +
             # https://bugzilla.kernel.org/show_bug.cgi?id=12309#c655

     

       366
       366
       +
             BLK_WBT    = yes;

     

       367
       367
       +
             BLK_WBT_SQ = yes;

     

       368
       368
       +
             BLK_WBT_MQ = yes;

     

       369
       369
       +
           };

     

       370
       370
       +
       

     

       371
       371
       +
           container = {

     

       372
       372
       +
             NAMESPACES     = option yes; #  Required by 'unshare' used by 'nixos-install'

     

       373
       373
       +
             RT_GROUP_SCHED = no;

     

       374
       374
       +
             CGROUP_DEVICE  = option yes;

     

       375
       375
       +
       

     

       376
       376
       +
             MEMCG                    = whenAtLeast "3.6" yes;

     

       377
       377
       +
             MEMCG_SWAP               = whenAtLeast "3.6" yes;

     

       378
       378
       +
             CGROUP_MEM_RES_CTLR      = whenOlder "3.6" yes;

     

       379
       379
       +
             CGROUP_MEM_RES_CTLR_SWAP = whenOlder "3.6" yes;

     

       380
       380
       +
       

     

       381
       381
       +
             DEVPTS_MULTIPLE_INSTANCES = whenOlder "4.7" yes;

     

       382
       382
       +
             BLK_DEV_THROTTLING        = yes;

     

       383
       383
       +
             CFQ_GROUP_IOSCHED         = yes;

     

       384
       384
       +
             CGROUP_PIDS               = whenAtLeast "4.3" yes;

     

       385
       385
       +
           };

     

       386
       386
       +
       

     

       387
       387
       +
           staging = {

     

       388
       388
       +
             # Enable staging drivers.  These are somewhat experimental, but

     

       389
       389
       +
             # they generally don't hurt.

     

       390
       390
       +
             STAGING = yes;

     

       391
       391
       +
           };

     

       392
       392
       +
       

     

       393
       393
       +
           proc-events = {

     

       394
       394
       +
             # PROC_EVENTS requires that the netlink connector is not built

     

       395
       395
       +
             # as a module.  This is required by libcgroup's cgrulesengd.

     

       396
       396
       +
             CONNECTOR   = yes;

     

       397
       397
       +
             PROC_EVENTS = yes;

     

       398
       398
       +
           };

     

       399
       399
       +
       

     

       400
       400
       +
           tracing = {

     

       401
       401
       +
             FTRACE                = yes;

     

       402
       402
       +
             KPROBES               = yes;

     

       403
       403
       +
             FUNCTION_TRACER       = yes;

     

       404
       404
       +
             FTRACE_SYSCALLS       = yes;

     

       405
       405
       +
             SCHED_TRACER          = yes;

     

       406
       406
       +
             STACK_TRACER          = yes;

     

       407
       407
       +
             UPROBE_EVENT          = option (whenOlder "4.11" yes);

     

       408
       408
       +
             UPROBE_EVENTS         = option (whenAtLeast "4.11" yes);

     

       409
       409
       +
             BPF_SYSCALL           = whenAtLeast "4.4" yes;

     

       410
       410
       +
             BPF_EVENTS            = whenAtLeast "4.4" yes;

     

       411
       411
       +
             FUNCTION_PROFILER     = yes;

     

       412
       412
       +
             RING_BUFFER_BENCHMARK = no;

     

       413
       413
       +
           };

     

       414
       414
       +
       

     

       415
       415
       +
           virtualisation = {

     

       416
       416
       +
             PARAVIRT = option yes;

     

       417
       417
       +
       

     

       418
       418
       +
             HYPERVISOR_GUEST = when (!grsecurity && versionAtLeast version "3.10") yes;

     

       419
       419
       +
             PARAVIRT_GUEST   = option (when (!grsecurity && versionOlder   version "3.10") yes);

     

       420
       420
       +
             PARAVIRT_SPINLOCKS  = option yes;

     

       421
       421
       +
       

     

       422
       422
       +
             KVM_APIC_ARCHITECTURE             = whenOlder "4.8" yes;

     

       423
       423
       +
             KVM_ASYNC_PF                      = yes;

     

       424
       424
       +
             KVM_CLOCK                         = option (whenOlder   "3.7"  yes);

     

       425
       425
       +
             KVM_COMPAT                        = option (whenBetween "4.0" "4.12"  yes);

     

       426
       426
       +
             KVM_DEVICE_ASSIGNMENT             = option (whenBetween "3.10" "4.12" yes);

     

       427
       427
       +
             KVM_GENERIC_DIRTYLOG_READ_PROTECT = whenAtLeast "4.0"  yes;

     

       428
       428
       +
             KVM_GUEST                         = when (!grsecurity) yes;

     

       429
       429
       +
             KVM_MMIO                          = yes;

     

       430
       430
       +
             KVM_VFIO                          = whenAtLeast "3.13" yes;

     

       431
       431
       +
             KSM = yes;

     

       432
       432
       +
             VIRT_DRIVERS = yes;

     

       433
       433
       +
             # We nneed 64 GB (PAE) support for Xen guest support

     

       434
       434
       +
             HIGHMEM64G = option (when (!stdenv.is64bit) yes);

     

       435
       435
       +
       

     

       436
       436
       +
             VFIO_PCI_VGA = when (versionAtLeast version "3.9" && stdenv.is64bit) yes;

     

       437
       437
       +
       

     

       438
       438
       +
           } // optionalAttrs (stdenv.isx86_64 || stdenv.isi686) ({

     

       439
       439
       +
             XEN = option yes;

     

       440
       440
       +
       

     

       441
       441
       +
             # XXX: why isn't this in the xen-dom0 conditional section below?

     

       442
       442
       +
             XEN_DOM0 = option yes;

     

       443
       443
       +
       

     

       444
       444
       +
           } // optionalAttrs (versionAtLeast version "3.18" && xen_dom0) {

     

       445
       445
       +
             PCI_XEN                     = option yes;

     

       446
       446
       +
             HVC_XEN                     = option yes;

     

       447
       447
       +
             HVC_XEN_FRONTEND            = option yes;

     

       448
       448
       +
             XEN_SYS_HYPERVISOR          = option yes;

     

       449
       449
       +
             SWIOTLB_XEN                 = option yes;

     

       450
       450
       +
             XEN_BACKEND                 = option yes;

     

       451
       451
       +
             XEN_BALLOON                 = option yes;

     

       452
       452
       +
             XEN_BALLOON_MEMORY_HOTPLUG  = option yes;

     

       453
       453
       +
             XEN_EFI                     = option yes;

     

       454
       454
       +
             XEN_HAVE_PVMMU              = option yes;

     

       455
       455
       +
             XEN_MCE_LOG                 = option yes;

     

       456
       456
       +
             XEN_PVH                     = option yes;

     

       457
       457
       +
             XEN_PVHVM                   = option yes;

     

       458
       458
       +
             XEN_SAVE_RESTORE            = option yes;

     

       459
       459
       +
             XEN_SCRUB_PAGES             = option yes;

     

       460
       460
       +
             XEN_SELFBALLOONING          = option yes;

     

       461
       461
       +
             XEN_STUB                    = option yes;

     

       462
       462
       +
             XEN_TMEM                    = option yes;

     

       463
       463
       +
           });

     

       464
       464
       +
       

     

       465
       465
       +
           media = {

     

       466
       466
       +
             MEDIA_DIGITAL_TV_SUPPORT = yes;

     

       467
       467
       +
             MEDIA_CAMERA_SUPPORT     = yes;

     

       468
       468
       +
             MEDIA_RC_SUPPORT         = whenOlder "4.14" yes;

     

       469
       469
       +
       			MEDIA_CONTROLLER         = yes;

     

       470
       470
       +
             MEDIA_PCI_SUPPORT        = yes;

     

       471
       471
       +
             MEDIA_USB_SUPPORT        = yes;

     

       472
       472
       +
             MEDIA_ANALOG_TV_SUPPORT  = yes;

     

       473
       473
       +
             VIDEO_STK1160_COMMON     = module;

     

       474
       474
       +
             VIDEO_STK1160_AC97       = whenOlder "4.11" yes;

     

       475
       475
       +
           };

     

       476
       476
       +
       

     

       477
       477
       +
           "9p" = {

     

       478
       478
       +
             # Enable the 9P cache to speed up NixOS VM tests.

     

       479
       479
       +
             "9P_FSCACHE"      = option yes;

     

       480
       480
       +
             "9P_FS_POSIX_ACL" = option yes;

     

       481
       481
       +
           };

     

       482
       482
       +
       

     

       483
       483
       +
           huge-page = {

     

       484
       484
       +
             TRANSPARENT_HUGEPAGE         = option yes;

     

       485
       485
       +
             TRANSPARENT_HUGEPAGE_ALWAYS  = option no;

     

       486
       486
       +
             TRANSPARENT_HUGEPAGE_MADVISE = option yes;

     

       487
       487
       +
           };

     

       488
       488
       +
       

     

       489
       489
       +
           zram = {

     

       490
       490
       +
             ZRAM     = module;

     

       491
       491
       +
             ZSWAP    = option yes;

     

       492
       492
       +
             ZBUD     = option yes;

     

       493
       493
       +
             ZSMALLOC = if (versionOlder version "3.18") then yes else module;

     

       494
       494
       +
           };

     

       495
       495
       +
       

     

       496
       496
       +
           brcmfmac = {

     

       497
       497
       +
             # Enable PCIe and USB for the brcmfmac driver

     

       498
       498
       +
             BRCMFMAC_USB  = option yes;

     

       499
       499
       +
             BRCMFMAC_PCIE = option yes;

     

       500
       500
       +
           };

     

       501
       501
       +
       

     

       502
       502
       +
           # Support x2APIC (which requires IRQ remapping)

     

       503
       503
       +
           x2apic = optionalAttrs (stdenv.system == "x86_64-linux") {

     

       504
       504
       +
             X86_X2APIC = yes;

     

       505
       505
       +
             IRQ_REMAP  = yes;

     

       506
       506
       +
           };

     

       507
       507
       +
       

     

       508
       508
       +
       

     

       509
       509
       +
           # For older kernels, painstakingly disable each symbol.

     

       510
       510
       +
           tests = {

     

       511
       511
       +
             # Disable various self-test modules that have no use in a production system

     

       512
       512
       +
             # This menu disables all/most of them on >= 4.16

     

       513
       513
       +
             RUNTIME_TESTING_MENU = option no;

     

       514
       514
       +
           } // optionalAttrs (versionOlder version "4.16") {

     

       515
       515
       +
             ARM_KPROBES_TEST    = option no;

     

       516
       516
       +
             ASYNC_RAID6_TEST    = option no;

     

       517
       517
       +
             ATOMIC64_SELFTEST   = option no;

     

       518
       518
       +
             BACKTRACE_SELF_TEST = option no;

     

       519
       519
       +
             INTERVAL_TREE_TEST  = option no;

     

       520
       520
       +
             PERCPU_TEST         = option no;

     

       521
       521
       +
             RBTREE_TEST         = option no;

     

       522
       522
       +
             TEST_BITMAP         = option no;

     

       523
       523
       +
             TEST_BPF            = option no;

     

       524
       524
       +
             TEST_FIRMWARE       = option no;

     

       525
       525
       +
             TEST_HASH           = option no;

     

       526
       526
       +
             TEST_HEXDUMP        = option no;

     

       527
       527
       +
             TEST_KMOD           = option no;

     

       528
       528
       +
             TEST_KSTRTOX        = option no;

     

       529
       529
       +
             TEST_LIST_SORT      = option no;

     

       530
       530
       +
             TEST_LKM            = option no;

     

       531
       531
       +
             TEST_PARMAN         = option no;

     

       532
       532
       +
             TEST_PRINTF         = option no;

     

       533
       533
       +
             TEST_RHASHTABLE     = option no;

     

       534
       534
       +
             TEST_SORT           = option no;

     

       535
       535
       +
             TEST_STATIC_KEYS    = option no;

     

       536
       536
       +
             TEST_STRING_HELPERS = option no;

     

       537
       537
       +
             TEST_UDELAY         = option no;

     

       538
       538
       +
             TEST_USER_COPY      = option no;

     

       539
       539
       +
             TEST_UUID           = option no;

     

       540
       540
       +
           } // {

     

       541
       541
       +
             CRC32_SELFTEST           = option no;

     

       542
       542
       +
             CRYPTO_TEST              = option no;

     

       543
       543
       +
             EFI_TEST                 = option no;

     

       544
       544
       +
             GLOB_SELFTEST            = option no;

     

       545
       545
       +
             DRM_DEBUG_MM_SELFTEST    = option (whenOlder "4.18" no);

     

       546
       546
       +
             LNET_SELFTEST            = option (whenOlder "4.18" no);

     

       547
       547
       +
             LOCK_TORTURE_TEST        = option no;

     

       548
       548
       +
             MTD_TESTS                = option no;

     

       549
       549
       +
             NOTIFIER_ERROR_INJECTION = option no;

     

       550
       550
       +
             RCU_PERF_TEST            = option no;

     

       551
       551
       +
             RCU_TORTURE_TEST         = option no;

     

       552
       552
       +
             TEST_ASYNC_DRIVER_PROBE  = option no;

     

       553
       553
       +
             WW_MUTEX_SELFTEST        = option no;

     

       554
       554
       +
             XZ_DEC_TEST              = option no;

     

       555
       555
       +
           } // optionalAttrs (features.criu or false) ({

     

       556
       556
       +
             EXPERT              = yes;

     

       557
       557
       +
             CHECKPOINT_RESTORE  = yes;

     

       558
       558
       +
           } // optionalAttrs (features.criu_revert_expert or true) {

     

       559
       559
       +
             RFKILL_INPUT          = option yes;

     

       560
       560
       +
             HID_PICOLCD_FB        = option yes;

     

       561
       561
       +
             HID_PICOLCD_BACKLIGHT = option yes;

     

       562
       562
       +
             HID_PICOLCD_LCD       = option yes;

     

       563
       563
       +
             HID_PICOLCD_LEDS      = option yes;

     

       564
       564
       +
             HID_PICOLCD_CIR       = option yes;

     

       565
       565
       +
             DEBUG_MEMORY_INIT     = option yes;

     

       566
       566
       +
           });

     

       567
       567
       +
       

     

       568
       568
       +
       

     

       569
       569
       +
           misc = {

     

       570
       570
       +
             MODULE_COMPRESS    = whenAtLeast "3.18" yes;

     

       571
       571
       +
             MODULE_COMPRESS_XZ = whenAtLeast "3.18" yes;

     

       572
       572
       +
             KERNEL_XZ          = yes;

     

       573
       573
       +
       

     

       574
       574
       +
             # Unix domain sockets.

     

       575
       575
       +
             UNIX               = yes;

     

       576
       576
       +
       

     

       577
       577
       +
             # Device mapper (RAID, LVM, etc.)

     

       578
       578
       +
             MD = yes;

     

       579
       579
       +
       

     

       580
       580
       +
             # Enable initrd support.

     

       581
       581
       +
             BLK_DEV_RAM       = yes;

     

       582
       582
       +
             BLK_DEV_INITRD    = yes;

     

       583
       583
       +
       

     

       584
       584
       +
       

     

       585
       585
       +
             PM_TRACE_RTC         = no; # Disable some expensive (?) features.

     

       586
       586
       +
             ACCESSIBILITY        = yes; # Accessibility support

     

       587
       587
       +
             AUXDISPLAY           = yes; # Auxiliary Display support

     

       588
       588
       +
             DONGLE               = whenOlder "4.17" yes; # Serial dongle support

     

       589
       589
       +
             HIPPI                = yes;

     

       590
       590
       +
             MTD_COMPLEX_MAPPINGS = yes; # needed for many devices

     

       591
       591
       +
             NET_POCKET           = whenOlder "3.2" yes; # enable pocket and portable adapters

     

       592
       592
       +
       

     

       593
       593
       +
             SCSI_LOWLEVEL        = yes; # enable lots of SCSI devices

     

       594
       594
       +
             SCSI_LOWLEVEL_PCMCIA = yes;

     

       595
       595
       +
             SCSI_SAS_ATA         = yes; # added to enable detection of hard drive

     

       596
       596
       +
       

     

       597
       597
       +
             SPI        = yes; # needed for many devices

     

       598
       598
       +
             SPI_MASTER = yes;

     

       599
       599
       +
       

     

       600
       600
       +
       

     

       601
       601
       +
             "8139TOO_8129" = yes;

     

       602
       602
       +
             "8139TOO_PIO"  = no; # PIO is slower

     

       489
       603
        
       

     

       490
       490
       -
         ${optionalString (versionAtLeast version "3.12") ''

     

       491
       491
       -
           HOTPLUG_PCI_ACPI y # PCI hotplug using ACPI

     

       492
       492
       -
           HOTPLUG_PCI_PCIE y # PCI-Expresscard hotplug support

     

       493
       493
       -
         ''}

     

       604
       604
       +
             AIC79XX_DEBUG_ENABLE = no;

     

       605
       605
       +
             AIC7XXX_DEBUG_ENABLE = no;

     

       606
       606
       +
             AIC94XX_DEBUG = no;

     

       607
       607
       +
             AUDIT_LOGINUID_IMMUTABLE = whenBetween "3.3" "3.13" yes;

     

       608
       608
       +
             B43_PCMCIA = option (whenOlder "4.4" yes);

     

       494
       609
        
       

     

       610
       610
       +
             BLK_DEV_INTEGRITY       = yes;

     

       495
       611
        
       

     

       496
       496
       -
         # Linux containers.

     

       497
       497
       -
         NAMESPACES? y #  Required by 'unshare' used by 'nixos-install'

     

       498
       498
       -
         RT_GROUP_SCHED n

     

       499
       499
       -
         CGROUP_DEVICE? y

     

       500
       500
       -
         MEMCG y

     

       501
       501
       -
         MEMCG_SWAP y

     

       502
       502
       -
         ${optionalString (versionOlder version "4.7") "DEVPTS_MULTIPLE_INSTANCES y"}

     

       503
       503
       -
         BLK_DEV_THROTTLING y

     

       504
       504
       -
         CFQ_GROUP_IOSCHED y

     

       505
       505
       -
         ${optionalString (versionAtLeast version "4.3") ''

     

       506
       506
       -
           CGROUP_PIDS y

     

       507
       507
       -
         ''}

     

       612
       612
       +
             BSD_PROCESS_ACCT_V3 = yes;

     

       508
       613
        
       

     

       509
       509
       -
         # Enable staging drivers.  These are somewhat experimental, but

     

       510
       510
       -
         # they generally don't hurt.

     

       511
       511
       -
         STAGING y

     

       614
       614
       +
             BT_HCIUART_BCSP = option yes;

     

       615
       615
       +
             BT_HCIUART_H4   = option yes; # UART (H4) protocol support

     

       616
       616
       +
             BT_HCIUART_LL   = option yes;

     

       617
       617
       +
             BT_RFCOMM_TTY   = option (whenAtLeast "3.4" yes); # RFCOMM TTY support

     

       512
       618
        
       

     

       513
       513
       -
         # PROC_EVENTS requires that the netlink connector is not built

     

       514
       514
       -
         # as a module.  This is required by libcgroup's cgrulesengd.

     

       515
       515
       -
         CONNECTOR y

     

       516
       516
       -
         PROC_EVENTS y

     

       619
       619
       +
             CLEANCACHE = option yes;

     

       620
       620
       +
             CRASH_DUMP  = option no;

     

       517
       621
        
       

     

       518
       518
       -
         # Tracing.

     

       519
       519
       -
         FTRACE y

     

       520
       520
       -
         KPROBES y

     

       521
       521
       -
         FUNCTION_TRACER y

     

       522
       522
       -
         FTRACE_SYSCALLS y

     

       523
       523
       -
         SCHED_TRACER y

     

       524
       524
       -
         STACK_TRACER y

     

       622
       622
       +
             DMAR = option (whenOlder "3.1" no); # experimental

     

       525
       623
        
       

     

       526
       526
       -
         ${if versionOlder version "4.11" then ''

     

       527
       527
       -
           UPROBE_EVENT? y

     

       528
       528
       -
         '' else ''

     

       529
       529
       -
           UPROBE_EVENTS? y

     

       530
       530
       -
         ''}

     

       624
       624
       +
             DVB_DYNAMIC_MINORS = option yes; # we use udev

     

       531
       625
        
       

     

       532
       532
       -
         ${optionalString (versionAtLeast version "4.4") ''

     

       533
       533
       -
           BPF_SYSCALL y

     

       534
       534
       -
           BPF_EVENTS y

     

       535
       535
       -
         ''}

     

       536
       536
       -
         FUNCTION_PROFILER y

     

       537
       537
       -
         RING_BUFFER_BENCHMARK n

     

       626
       626
       +
             EFI_STUB = whenAtLeast "3.3" yes; # EFI bootloader in the bzImage itself

     

       627
       627
       +
             CGROUPS      = yes; # used by systemd

     

       628
       628
       +
             FHANDLE      = yes; # used by systemd

     

       629
       629
       +
             SECCOMP      = yes; # used by systemd >= 231

     

       630
       630
       +
             SECCOMP_FILTER = yes; # ditto

     

       631
       631
       +
             POSIX_MQUEUE = yes;

     

       632
       632
       +
             FRONTSWAP    = yes;

     

       633
       633
       +
             FUSION       = yes; # Fusion MPT device support

     

       634
       634
       +
             IDE          = no; # deprecated IDE support

     

       635
       635
       +
             IDLE_PAGE_TRACKING  = whenAtLeast "4.3" yes;

     

       636
       636
       +
             IRDA_ULTRA   = whenOlder "4.17" yes; # Ultra (connectionless) protocol

     

       538
       637
        
       

     

       539
       539
       -
         # Devtmpfs support.

     

       540
       540
       -
         DEVTMPFS y

     

       638
       638
       +
             JOYSTICK_IFORCE_232 = option yes; # I-Force Serial joysticks and wheels

     

       639
       639
       +
             JOYSTICK_IFORCE_USB = option yes; # I-Force USB joysticks and wheels

     

       640
       640
       +
             JOYSTICK_XPAD_FF    = option yes; # X-Box gamepad rumble support

     

       641
       641
       +
             JOYSTICK_XPAD_LEDS  = option yes; # LED Support for Xbox360 controller 'BigX' LED

     

       541
       642
        
       

     

       542
       542
       -
         # Easier debugging of NFS issues.

     

       543
       543
       -
         SUNRPC_DEBUG y

     

       643
       643
       +
             KEXEC_FILE      = option yes;

     

       644
       644
       +
             KEXEC_JUMP      = option yes;

     

       544
       645
        
       

     

       545
       545
       -
         # Virtualisation.

     

       546
       546
       -
         PARAVIRT? y

     

       547
       547
       -
         HYPERVISOR_GUEST y

     

       548
       548
       -
         PARAVIRT_SPINLOCKS? y

     

       549
       549
       -
         ${optionalString (versionOlder version "4.8") ''

     

       550
       550
       -
           KVM_APIC_ARCHITECTURE y

     

       551
       551
       -
         ''}

     

       552
       552
       -
         KVM_ASYNC_PF y

     

       553
       553
       -
         ${optionalString ((versionAtLeast version "4.0") && (versionOlder version "4.12")) ''

     

       554
       554
       -
           KVM_COMPAT? y

     

       555
       555
       -
         ''}

     

       556
       556
       -
         ${optionalString (versionOlder version "4.12") ''

     

       557
       557
       -
           KVM_DEVICE_ASSIGNMENT? y

     

       558
       558
       -
         ''}

     

       559
       559
       -
         ${optionalString (versionAtLeast version "4.0") ''

     

       560
       560
       -
           KVM_GENERIC_DIRTYLOG_READ_PROTECT y

     

       561
       561
       -
         ''}

     

       562
       562
       -
         KVM_GUEST y

     

       563
       563
       -
         KVM_MMIO y

     

       564
       564
       -
         ${optionalString (versionAtLeast version "3.13") ''

     

       565
       565
       -
           KVM_VFIO y

     

       566
       566
       -
         ''}

     

       567
       567
       -
         ${optionalString (stdenv.isx86_64 || stdenv.isi686) ''

     

       568
       568
       -
           XEN? y

     

       569
       569
       -
           XEN_DOM0? y

     

       570
       570
       -
           ${optionalString ((versionAtLeast version "3.18") && (features.xen_dom0 or false))  ''

     

       571
       571
       -
             PCI_XEN? y

     

       572
       572
       -
             HVC_XEN? y

     

       573
       573
       -
             HVC_XEN_FRONTEND? y

     

       574
       574
       -
             XEN_SYS_HYPERVISOR? y

     

       575
       575
       -
             SWIOTLB_XEN? y

     

       576
       576
       -
             XEN_BACKEND? y

     

       577
       577
       -
             XEN_BALLOON? y

     

       578
       578
       -
             XEN_BALLOON_MEMORY_HOTPLUG? y

     

       579
       579
       -
             XEN_EFI? y

     

       580
       580
       -
             XEN_HAVE_PVMMU? y

     

       581
       581
       -
             XEN_MCE_LOG? y

     

       582
       582
       -
             XEN_PVH? y

     

       583
       583
       -
             XEN_PVHVM? y

     

       584
       584
       -
             XEN_SAVE_RESTORE? y

     

       585
       585
       -
             XEN_SCRUB_PAGES? y

     

       586
       586
       -
             XEN_SELFBALLOONING? y

     

       587
       587
       -
             XEN_STUB? y

     

       588
       588
       -
             XEN_TMEM? y

     

       589
       589
       -
           ''}

     

       590
       590
       -
         ''}

     

       591
       591
       -
         KSM y

     

       592
       592
       -
         ${optionalString (!stdenv.is64bit) ''

     

       593
       593
       -
           HIGHMEM64G? y # We need 64 GB (PAE) support for Xen guest support.

     

       594
       594
       -
         ''}

     

       595
       595
       -
         ${optionalString (stdenv.is64bit) ''

     

       596
       596
       -
           VFIO_PCI_VGA y

     

       597
       597
       -
         ''}

     

       598
       598
       -
         VIRT_DRIVERS y

     

       646
       646
       +
             # Windows Logical Disk Manager (Dynamic Disk) support

     

       647
       647
       +
             LDM_PARTITION         = yes;

     

       648
       648
       +
             LOGIRUMBLEPAD2_FF     = yes; # Logitech Rumblepad 2 force feedback

     

       649
       649
       +
             LOGO                  = no; # not needed

     

       650
       650
       +
             MEDIA_ATTACH          = yes;

     

       651
       651
       +
             MEGARAID_NEWGEN       = yes;

     

       599
       652
        
       

     

       600
       600
       -
         # Media support.

     

       601
       601
       -
         MEDIA_DIGITAL_TV_SUPPORT y

     

       602
       602
       -
         MEDIA_CAMERA_SUPPORT y

     

       603
       603
       -
         ${optionalString (versionOlder version "4.14") ''

     

       604
       604
       -
           MEDIA_RC_SUPPORT y

     

       605
       605
       -
         ''}

     

       606
       606
       -
         MEDIA_CONTROLLER y

     

       607
       607
       -
         MEDIA_USB_SUPPORT y

     

       608
       608
       -
         MEDIA_PCI_SUPPORT y

     

       609
       609
       -
         MEDIA_ANALOG_TV_SUPPORT y

     

       610
       610
       -
         VIDEO_STK1160_COMMON m

     

       611
       611
       -
         ${optionalString (versionOlder version "4.11") ''

     

       612
       612
       -
           VIDEO_STK1160_AC97 y

     

       613
       613
       -
         ''}

     

       653
       653
       +
             MLX4_EN_VXLAN = whenBetween "3.15" "4.8" yes;

     

       614
       654
        
       

     

       615
       615
       -
         # Our initrd init uses shebang scripts, so can't be modular.

     

       616
       616
       -
         BINFMT_SCRIPT y

     

       655
       655
       +
             MODVERSIONS        = whenOlder "4.9" yes;

     

       656
       656
       +
             MOUSE_PS2_ELANTECH = yes; # Elantech PS/2 protocol extension

     

       657
       657
       +
             MTRR_SANITIZER     = yes;

     

       658
       658
       +
             NET_FC             = yes; # Fibre Channel driver support

     

       659
       659
       +
             # GPIO on Intel Bay Trail, for some Chromebook internal eMMC disks

     

       660
       660
       +
             PINCTRL_BAYTRAIL   = whenAtLeast "3.11" yes;

     

       661
       661
       +
             # 8 is default. Modern gpt tables on eMMC may go far beyond 8.

     

       662
       662
       +
             MMC_BLOCK_MINORS   = "32";

     

       617
       663
        
       

     

       618
       618
       -
         # For systemd-binfmt

     

       619
       619
       -
         BINFMT_MISC? y

     

       620
       664
        
       

     

       621
       621
       -
         # Enable the 9P cache to speed up NixOS VM tests.

     

       622
       622
       -
         9P_FSCACHE? y

     

       623
       623
       -
         9P_FS_POSIX_ACL? y

     

       665
       665
       +
             REGULATOR  = yes; # Voltage and Current Regulator Support

     

       666
       666
       +
             RC_DEVICES = option (whenAtLeast "3.6" yes); # Enable IR devices

     

       624
       667
        
       

     

       625
       625
       -
         # Enable transparent support for huge pages.

     

       626
       626
       -
         TRANSPARENT_HUGEPAGE? y

     

       627
       627
       -
         TRANSPARENT_HUGEPAGE_ALWAYS? n

     

       628
       628
       -
         TRANSPARENT_HUGEPAGE_MADVISE? y

     

       668
       668
       +
             RT2800USB_RT53XX = yes;

     

       669
       669
       +
             RT2800USB_RT55XX = whenAtLeast "3.10" yes;

     

       629
       670
        
       

     

       630
       630
       -
         # zram support (e.g for in-memory compressed swap).

     

       631
       631
       -
         ZRAM m

     

       632
       632
       -
         ZSWAP? y

     

       633
       633
       -
         ZBUD? y

     

       634
       634
       -
         ${optionalString (versionOlder version "3.18") ''

     

       635
       635
       -
           ZSMALLOC y

     

       636
       636
       -
         ''}

     

       637
       637
       -
         ${optionalString (versionAtLeast version "3.18") ''

     

       638
       638
       -
           ZSMALLOC m

     

       639
       639
       -
         ''}

     

       671
       671
       +
             SCHED_AUTOGROUP  = yes;

     

       672
       672
       +
             CFS_BANDWIDTH    = yes;

     

       640
       673
        
       

     

       641
       641
       -
         # Enable PCIe and USB for the brcmfmac driver

     

       642
       642
       -
         BRCMFMAC_USB? y

     

       643
       643
       -
         BRCMFMAC_PCIE? y

     

       674
       674
       +
             SCSI_LOGGING = yes; # SCSI logging facility

     

       675
       675
       +
             SERIAL_8250  = yes; # 8250/16550 and compatible serial support

     

       644
       676
        
       

     

       645
       645
       -
         # Support x2APIC (which requires IRQ remapping).

     

       646
       646
       -
         ${optionalString (stdenv.system == "x86_64-linux") ''

     

       647
       647
       -
           X86_X2APIC y

     

       648
       648
       -
           IRQ_REMAP y

     

       649
       649
       -
         ''}

     

       677
       677
       +
             SLIP_COMPRESSED = yes; # CSLIP compressed headers

     

       678
       678
       +
             SLIP_SMART      = yes;

     

       650
       679
        
       

     

       651
       651
       -
         # needed for iwd WPS support (wpa_supplicant replacement)

     

       652
       652
       -
         ${optionalString (versionAtLeast version "4.7") ''

     

       653
       653
       -
           KEY_DH_OPERATIONS y

     

       654
       654
       -
         ''}

     

       680
       680
       +
             HWMON         = yes;

     

       681
       681
       +
             THERMAL_HWMON = yes; # Hardware monitoring support

     

       682
       682
       +
             UEVENT_HELPER = whenAtLeast "3.15" no;

     

       655
       683
        
       

     

       656
       656
       -
         # Disable the firmware helper fallback, udev doesn't implement it any more

     

       657
       657
       -
         FW_LOADER_USER_HELPER_FALLBACK? n

     

       684
       684
       +
             USERFAULTFD   = whenAtLeast "4.3" yes;

     

       685
       685
       +
             X86_CHECK_BIOS_CORRUPTION = yes;

     

       686
       686
       +
             X86_MCE                   = yes;

     

       658
       687
        
       

     

       659
       659
       -
         # Disable various self-test modules that have no use in a production system

     

       660
       660
       -
         # This menu disables all/most of them on >= 4.16

     

       661
       661
       -
         RUNTIME_TESTING_MENU? n

     

       662
       662
       -
         # For older kernels, painstakingly disable each symbol.

     

       663
       663
       -
         ${optionalString (versionOlder version "4.16") ''

     

       664
       664
       -
           ARM_KPROBES_TEST? n

     

       665
       665
       -
           ASYNC_RAID6_TEST? n

     

       666
       666
       -
           ATOMIC64_SELFTEST? n

     

       667
       667
       -
           BACKTRACE_SELF_TEST? n

     

       668
       668
       -
           INTERVAL_TREE_TEST? n

     

       669
       669
       -
           PERCPU_TEST? n

     

       670
       670
       -
           RBTREE_TEST? n

     

       671
       671
       -
           TEST_BITMAP? n

     

       672
       672
       -
           TEST_BPF? n

     

       673
       673
       -
           TEST_FIRMWARE? n

     

       674
       674
       -
           TEST_HASH? n

     

       675
       675
       -
           TEST_HEXDUMP? n

     

       676
       676
       -
           TEST_KMOD? n

     

       677
       677
       -
           TEST_KSTRTOX? n

     

       678
       678
       -
           TEST_LIST_SORT? n

     

       679
       679
       -
           TEST_LKM? n

     

       680
       680
       -
           TEST_PARMAN? n

     

       681
       681
       -
           TEST_PRINTF? n

     

       682
       682
       -
           TEST_RHASHTABLE? n

     

       683
       683
       -
           TEST_SORT? n

     

       684
       684
       -
           TEST_STATIC_KEYS? n

     

       685
       685
       -
           TEST_STRING_HELPERS? n

     

       686
       686
       -
           TEST_UDELAY? n

     

       687
       687
       -
           TEST_USER_COPY? n

     

       688
       688
       -
           TEST_UUID? n

     

       689
       689
       -
         ''}

     

       688
       688
       +
             # Our initrd init uses shebang scripts, so can't be modular.

     

       689
       689
       +
             BINFMT_SCRIPT = whenAtLeast "3.10" yes;

     

       690
       690
       +
             # For systemd-binfmt

     

       691
       691
       +
             BINFMT_MISC   = option yes;

     

       690
       692
        
       

     

       691
       691
       -
         CRC32_SELFTEST? n

     

       692
       692
       -
         CRYPTO_TEST? n

     

       693
       693
       -
         ${optionalString (versionOlder version "4.18") ''

     

       694
       694
       -
           DRM_DEBUG_MM_SELFTEST? n

     

       695
       695
       -
           LNET_SELFTEST? n

     

       696
       696
       -
         ''}

     

       697
       697
       -
         EFI_TEST? n

     

       698
       698
       -
         GLOB_SELFTEST? n

     

       699
       699
       -
         LOCK_TORTURE_TEST? n

     

       700
       700
       -
         MTD_TESTS? n

     

       701
       701
       -
         NOTIFIER_ERROR_INJECTION? n

     

       702
       702
       -
         RCU_PERF_TEST? n

     

       703
       703
       -
         RCU_TORTURE_TEST? n

     

       704
       704
       -
         TEST_ASYNC_DRIVER_PROBE? n

     

       705
       705
       -
         WW_MUTEX_SELFTEST? n

     

       706
       706
       -
         XZ_DEC_TEST? n

     

       693
       693
       +
             # Disable the firmware helper fallback, udev doesn't implement it any more

     

       694
       694
       +
             FW_LOADER_USER_HELPER_FALLBACK = option no;

     

       707
       695
        
       

     

       708
       708
       -
         ${optionalString (features.criu or false)  ''

     

       709
       709
       -
           EXPERT y

     

       710
       710
       -
           CHECKPOINT_RESTORE y

     

       711
       711
       -
         ''}

     

       696
       696
       +
             HOTPLUG_PCI_ACPI  = whenAtLeast "3.12" yes; # PCI hotplug using ACPI

     

       697
       697
       +
             HOTPLUG_PCI_PCIE = whenAtLeast "3.12" yes; # PCI-Expresscard hotplug support

     

       712
       698
        
       

     

       713
       713
       -
         ${optionalString ((features.criu or false) && (features.criu_revert_expert or true))

     

       714
       714
       -
           # Revert some changes, introduced by EXPERT, when necessary for criu

     

       715
       715
       -
         ''

     

       716
       716
       -
           RFKILL_INPUT? y

     

       717
       717
       -
           HID_PICOLCD_FB? y

     

       718
       718
       -
           HID_PICOLCD_BACKLIGHT? y

     

       719
       719
       -
           HID_PICOLCD_LCD? y

     

       720
       720
       -
           HID_PICOLCD_LEDS? y

     

       721
       721
       -
           HID_PICOLCD_CIR? y

     

       722
       722
       -
           DEBUG_MEMORY_INIT? y

     

       723
       723
       -
         ''}

     

       699
       699
       +
           } // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux" || stdenv.hostPlatform.system == "aarch64-linux") {

     

       700
       700
       +
             # Bump the maximum number of CPUs to support systems like EC2 x1.*

     

       701
       701
       +
             # instances and Xeon Phi.

     

       702
       702
       +
             NR_CPUS = "384";

     

       703
       703
       +
           };

     

       704
       704
       +
         };

     

       705
       705
       +
       in (generateNixKConf ((flattenKConf options) // structuredExtraConfig) mkValueOverride) + extraConfig

     

       724
       706
        
       

     

       725
       725
       -
         ${extraConfig}

     

       726
       726
       -
       ''

+9 -4

pkgs/os-specific/linux/kernel/generic.nix

···

       15
       15
        
       , # Allows overriding the default defconfig

     

       16
       16
        
         defconfig ? null

     

       17
       17
        
       

     

       18
       18
       -
       , # Overrides to the kernel config.

     

       18
       18
       +
       , # Legacy overrides to the intermediate kernel config, as string

     

       19
       19
        
         extraConfig ? ""

     

       20
       20
       +
       

     

       21
       21
       +
       , # kernel intermediate config overrides, as a set

     

       22
       22
       +
        structuredExtraConfig ? {}

     

       20
       23
        
       

     

       21
       24
        
       , # The version number used for the module directory

     

       22
       25
        
         modDirVersion ? version

     
···

       42
       45
        
       , preferBuiltin ? hostPlatform.platform.kernelPreferBuiltin or false

     

       43
       46
        
       , kernelArch ? hostPlatform.platform.kernelArch

     

       44
       47
        
       

     

       48
       48
       +
       , mkValueOverride ? null

     

       45
       49
        
       , ...

     

       46
       50
        
       } @ args:

     

       47
       51
        
       

     
···

       59
       63
        
           netfilterRPFilter = true;

     

       60
       64
        
         } // features) kernelPatches;

     

       61
       65
        
       

     

       62
       62
       -
         config = import ./common-config.nix {

     

       63
       63
       -
           inherit stdenv version ;

     

       66
       66
       +
         intermediateNixConfig = import ./common-config.nix {

     

       67
       67
       +
           inherit stdenv version structuredExtraConfig mkValueOverride;

     

       68
       68
       +
       

     

       64
       69
        
           # append extraConfig for backwards compatibility but also means the user can't override the kernelExtraConfig part

     

       65
       70
        
           extraConfig = extraConfig + lib.optionalString (hostPlatform.platform ? kernelExtraConfig) hostPlatform.platform.kernelExtraConfig;

     

       66
       71
        
       

     
···

       79
       84
        
       

     

       80
       85
        
           generateConfig = ./generate-config.pl;

     

       81
       86
        
       

     

       82
       82
       -
           kernelConfig = kernelConfigFun config;

     

       87
       87
       +
           kernelConfig = kernelConfigFun intermediateNixConfig;

     

       83
       88
        
           passAsFile = [ "kernelConfig" ];

     

       84
       89
        
       

     

       85
       90
        
           depsBuildBuild = [ buildPackages.stdenv.cc ];

+1 -1

pkgs/os-specific/linux/kernel/manual-config.nix

···

       24
       24
        
         modDirVersion ? version,

     

       25
       25
        
         # The kernel source (tarball, git checkout, etc.)

     

       26
       26
        
         src,

     

       27
       27
       -
         # Any patches

     

       27
       27
       +
         # a list of { name=..., patch=..., extraConfig=...} patches

     

       28
       28
        
         kernelPatches ? [],

     

       29
       29
        
         # The kernel .config file

     

       30
       30
        
         configfile,