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

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linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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# WARNING/NOTE: whenever you want to add an option here you need to either
# * mark it as an optional one with `option`,
# * or make sure it works for all the versions in nixpkgs,
# * or check for which kernel versions it will work (using kernel
# changelog, google or whatever) and mark it with `whenOlder` or
# `whenAtLeast`.
# Then do test your change by building all the kernels (or at least
# their configs) in Nixpkgs or else you will guarantee lots and lots
# of pain to users trying to switch to an older kernel because of some
# hardware problems with a new one.
kernel: add a warning/note at the top of common-config so that people would hopefully stop breaking the older kernels
2015-03-24 22:34:54 +01:00
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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# Configuration
{ stdenv, version
kernel: add a warning/note at the top of common-config so that people would hopefully stop breaking the older kernels
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linux: fix features system
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, features ? { grsecurity = false; xen_dom0 = false; }
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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}:
Unify the Linux kernel configurations Having N different copies of the NixOS kernel configuration is bad because these copies tend to diverge. For instance, our 3.10 config lacked some modules that were enabled in older configs, probably because the 3.10 config had been copied off an earlier version of some older kernel config. So now there is a single kernel config in common-config.nix. It has a few conditionals to deal with new/removed kernel options, but otherwise it's pretty straightforward. Also, a lot of cut&paste boilerplate between the kernel Nix expressions is gone (such as preConfigure).
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with stdenv.lib;
linux: convert hardened-config to a structured one
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with import ../../../../lib/kernel.nix { inherit (stdenv) lib; inherit version; };
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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let
linux: fix features system
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# configuration items have to be part of a subattrs
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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flattenKConf = nested: mapAttrs (_: head) (zipAttrs (attrValues nested));
options = {
debug = {
DEBUG_INFO = if (features.debug or false) then yes else no;
DEBUG_KERNEL = yes;
DEBUG_DEVRES = no;
DYNAMIC_DEBUG = yes;
TIMER_STATS = whenOlder "4.11" yes;
DEBUG_NX_TEST = whenOlder "4.11" no;
CPU_NOTIFIER_ERROR_INJECT = whenOlder "4.4" (option no);
DEBUG_STACK_USAGE = no;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
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DEBUG_STACKOVERFLOW = mkIf (!features.grsecurity) no;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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RCU_TORTURE_TEST = no;
SCHEDSTATS = no;
DETECT_HUNG_TASK = yes;
CRASH_DUMP = option no;
# Easier debugging of NFS issues.
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
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SUNRPC_DEBUG = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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};
power-management = {
PM_ADVANCED_DEBUG = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
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X86_INTEL_LPSS = yes;
X86_INTEL_PSTATE = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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INTEL_IDLE = yes;
CPU_FREQ_DEFAULT_GOV_PERFORMANCE = yes;
linux: build with SCHEDUTIL governor - it can't be built as a module - it's not set as the default yet - for discussion see https://github.com/NixOS/nixpkgs/pull/42330
2018-08-30 11:15:36 +02:00
CPU_FREQ_GOV_SCHEDUTIL = whenAtLeast "4.9" yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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PM_WAKELOCKS = yes;
};
external-firmware = {
# Support drivers that need external firmware.
STANDALONE = no;
};
proc-config-gz = {
# Make /proc/config.gz available
IKCONFIG = yes;
IKCONFIG_PROC = yes;
};
optimization = {
# Optimize with -O2, not -Os
CC_OPTIMIZE_FOR_SIZE = no;
};
memtest = {
MEMTEST = yes;
};
# Include the CFQ I/O scheduler in the kernel, rather than as a
# module, so that the initrd gets a good I/O scheduler.
scheduler = {
linux: 4.20-rc7 -> 5.0-rc1
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IOSCHED_CFQ = whenOlder "5.0" yes; # Removed in 5.0-RC1
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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BLK_CGROUP = yes; # required by CFQ"
linux: 4.20-rc7 -> 5.0-rc1
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IOSCHED_DEADLINE = whenOlder "5.0" yes; # Removed in 5.0-RC1
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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MQ_IOSCHED_DEADLINE = whenAtLeast "4.11" yes;
BFQ_GROUP_IOSCHED = whenAtLeast "4.12" yes;
MQ_IOSCHED_KYBER = whenAtLeast "4.12" yes;
IOSCHED_BFQ = whenAtLeast "4.12" module;
};
# Enable NUMA.
numa = {
NUMA = option yes;
};
networking = {
NET = yes;
IP_PNP = no;
NETFILTER = yes;
NETFILTER_ADVANCED = yes;
IP_VS_PROTO_TCP = yes;
IP_VS_PROTO_UDP = yes;
IP_VS_PROTO_ESP = yes;
IP_VS_PROTO_AH = yes;
IP_DCCP_CCID3 = no; # experimental
CLS_U32_PERF = yes;
CLS_U32_MARK = yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
BPF_JIT = mkIf (stdenv.hostPlatform.system == "x86_64-linux") yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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WAN = yes;
# Required by systemd per-cgroup firewalling
CGROUP_BPF = option yes;
CGROUP_NET_PRIO = yes; # Required by systemd
IP_ROUTE_VERBOSE = yes;
IP_MROUTE_MULTIPLE_TABLES = yes;
IP_MULTICAST = yes;
IPV6_ROUTER_PREF = yes;
IPV6_ROUTE_INFO = yes;
IPV6_OPTIMISTIC_DAD = yes;
IPV6_MULTIPLE_TABLES = yes;
IPV6_SUBTREES = yes;
IPV6_MROUTE = yes;
IPV6_MROUTE_MULTIPLE_TABLES = yes;
IPV6_PIMSM_V2 = yes;
IPV6_FOU_TUNNEL = whenAtLeast "4.7" module;
NET_CLS_BPF = whenAtLeast "4.4" module;
NET_ACT_BPF = whenAtLeast "4.4" module;
L2TP_V3 = yes;
L2TP_IP = module;
L2TP_ETH = module;
BRIDGE_VLAN_FILTERING = yes;
BONDING = module;
NET_L3_MASTER_DEV = option yes;
NET_FOU_IP_TUNNELS = option yes;
IP_NF_TARGET_REDIRECT = module;
PPP_MULTILINK = yes; # PPP multilink support
PPP_FILTER = yes;
# needed for iwd WPS support (wpa_supplicant replacement)
KEY_DH_OPERATIONS = whenAtLeast "4.7" yes;
nftables: enable works in linux kernel 4.17 and 4.18
2018-08-24 15:54:50 +02:00
# needed for nftables
NF_TABLES_INET = whenAtLeast "4.17" yes;
NF_TABLES_NETDEV = whenAtLeast "4.17" yes;
NF_TABLES_IPV4 = whenAtLeast "4.17" yes;
NF_TABLES_ARP = whenAtLeast "4.17" yes;
NF_TABLES_IPV6 = whenAtLeast "4.17" yes;
NF_TABLES_BRIDGE = whenAtLeast "4.17" yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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};
wireless = {
CFG80211_WEXT = option yes; # Without it, ipw2200 drivers don't build
IPW2100_MONITOR = option yes; # support promiscuous mode
IPW2200_MONITOR = option yes; # support promiscuous mode
HOSTAP_FIRMWARE = option yes; # Support downloading firmware images with Host AP driver
HOSTAP_FIRMWARE_NVRAM = option yes;
ATH9K_PCI = option yes; # Detect Atheros AR9xxx cards on PCI(e) bus
ATH9K_AHB = option yes; # Ditto, AHB bus
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
B43_PHY_HT = option yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
BCMA_HOST_PCI = option yes;
};
fb = {
FB = yes;
FB_EFI = yes;
FB_NVIDIA_I2C = yes; # Enable DDC Support
FB_RIVA_I2C = yes;
FB_ATY_CT = yes; # Mach64 CT/VT/GT/LT (incl. 3D RAGE) support
FB_ATY_GX = yes; # Mach64 GX support
FB_SAVAGE_I2C = yes;
FB_SAVAGE_ACCEL = yes;
FB_SIS_300 = yes;
FB_SIS_315 = yes;
FB_3DFX_ACCEL = yes;
FB_VESA = yes;
FRAMEBUFFER_CONSOLE = yes;
FRAMEBUFFER_CONSOLE_ROTATION = yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
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FB_GEODE = mkIf (stdenv.hostPlatform.system == "i686-linux") yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
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};
video = {
# Enable KMS for devices whose X.org driver supports it
DRM_I915_KMS = whenOlder "4.3" yes;
# Allow specifying custom EDID on the kernel command line
DRM_LOAD_EDID_FIRMWARE = yes;
VGA_SWITCHEROO = yes; # Hybrid graphics support
DRM_GMA600 = yes;
DRM_GMA3600 = yes;
# necessary for amdgpu polaris support
DRM_AMD_POWERPLAY = whenBetween "4.5" "4.9" yes;
# (experimental) amdgpu support for verde and newer chipsets
DRM_AMDGPU_SI = whenAtLeast "4.9" yes;
# (stable) amdgpu support for bonaire and newer chipsets
DRM_AMDGPU_CIK = whenAtLeast "4.9" yes;
kernel config: Fix recent i686 builds
2018-06-30 13:01:22 +02:00
} // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux") {
# Intel GVT-g graphics virtualization supports 64-bit only
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
DRM_I915_GVT = whenAtLeast "4.16" yes;
DRM_I915_GVT_KVMGT = whenAtLeast "4.16" module;
};
sound = {
SND_DYNAMIC_MINORS = yes;
SND_AC97_POWER_SAVE = yes; # AC97 Power-Saving Mode
SND_HDA_INPUT_BEEP = yes; # Support digital beep via input layer
SND_HDA_RECONFIG = yes; # Support reconfiguration of jack functions
# Support configuring jack functions via fw mechanism at boot
SND_HDA_PATCH_LOADER = yes;
linux: enable SND_OSSEMUL Fixes #54074
2019-02-18 17:11:37 +01:00
SND_OSSEMUL = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
SND_USB_CAIAQ_INPUT = yes;
# Enable PSS mixer (Beethoven ADSP-16 and other compatible)
PSS_MIXER = whenOlder "4.12" yes;
};
usb-serial = {
USB_SERIAL_GENERIC = yes; # USB Generic Serial Driver
} // optionalAttrs (versionOlder version "4.16") {
kernel config: Minor text fixes
2018-06-30 13:05:29 +02:00
# Include firmware for various USB serial devices.
# Only applicable for kernels below 4.16, after that no firmware is shipped in the kernel tree.
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
USB_SERIAL_KEYSPAN_MPR = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
USB_SERIAL_KEYSPAN_USA28 = yes;
USB_SERIAL_KEYSPAN_USA28X = yes;
USB_SERIAL_KEYSPAN_USA28XA = yes;
USB_SERIAL_KEYSPAN_USA28XB = yes;
USB_SERIAL_KEYSPAN_USA19 = yes;
USB_SERIAL_KEYSPAN_USA18X = yes;
USB_SERIAL_KEYSPAN_USA19W = yes;
USB_SERIAL_KEYSPAN_USA19QW = yes;
USB_SERIAL_KEYSPAN_USA19QI = yes;
USB_SERIAL_KEYSPAN_USA49W = yes;
USB_SERIAL_KEYSPAN_USA49WLC = yes;
};
usb = {
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
USB_DEBUG = { optional = true; tristate = whenOlder "4.18" "n";};
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
USB_EHCI_ROOT_HUB_TT = yes; # Root Hub Transaction Translators
USB_EHCI_TT_NEWSCHED = yes; # Improved transaction translator scheduling
};
# Filesystem options - in particular, enable extended attributes and
# ACLs for all filesystems that support them.
filesystem = {
FANOTIFY = yes;
TMPFS = yes;
TMPFS_POSIX_ACL = yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
FS_ENCRYPTION = { optional = true; tristate = whenAtLeast "4.9" "m"; };
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
EXT2_FS_XATTR = yes;
EXT2_FS_POSIX_ACL = yes;
EXT2_FS_SECURITY = yes;
EXT2_FS_XIP = whenOlder "4.0" yes; # Ext2 execute in place support
EXT3_FS_POSIX_ACL = yes;
EXT3_FS_SECURITY = yes;
EXT4_FS_POSIX_ACL = yes;
EXT4_FS_SECURITY = yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
EXT4_ENCRYPTION = { optional = true; tristate = if (versionOlder version "4.8") then "m" else "y"; };
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
REISERFS_FS_XATTR = option yes;
REISERFS_FS_POSIX_ACL = option yes;
REISERFS_FS_SECURITY = option yes;
JFS_POSIX_ACL = option yes;
JFS_SECURITY = option yes;
XFS_QUOTA = option yes;
XFS_POSIX_ACL = option yes;
XFS_RT = option yes; # XFS Realtime subvolume support
OCFS2_DEBUG_MASKLOG = option no;
BTRFS_FS_POSIX_ACL = yes;
UBIFS_FS_ADVANCED_COMPR = option yes;
F2FS_FS = module;
F2FS_FS_SECURITY = option yes;
F2FS_FS_ENCRYPTION = option yes;
UDF_FS = module;
NFSD_PNFS = whenBetween "4.0" "4.6" yes;
NFSD_V2_ACL = yes;
NFSD_V3 = yes;
NFSD_V3_ACL = yes;
NFSD_V4 = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
NFSD_V4_SECURITY_LABEL = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
NFS_FSCACHE = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
NFS_SWAP = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
NFS_V3_ACL = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
NFS_V4_1 = yes; # NFSv4.1 client support
NFS_V4_2 = yes;
NFS_V4_SECURITY_LABEL = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
CIFS_XATTR = yes;
kernel-config: CIFS_POSIX no longer exists
2018-12-21 15:10:17 +01:00
CIFS_POSIX = option yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
CIFS_FSCACHE = yes;
linux: 4.18-rc8 -> 4.19-rc1
2018-08-27 03:50:19 +02:00
CIFS_STATS = whenOlder "4.19" yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
CIFS_WEAK_PW_HASH = yes;
CIFS_UPCALL = yes;
CIFS_ACL = yes;
CIFS_DFS_UPCALL = yes;
CIFS_SMB2 = whenOlder "4.13" yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
CEPH_FSCACHE = yes;
CEPH_FS_POSIX_ACL = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
SQUASHFS_FILE_DIRECT = yes;
SQUASHFS_DECOMP_MULTI_PERCPU = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
SQUASHFS_XATTR = yes;
SQUASHFS_ZLIB = yes;
SQUASHFS_LZO = yes;
SQUASHFS_XZ = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
SQUASHFS_LZ4 = yes;
kernel config: add support for CONFIG_SQUASHFS_ZSTD (#52967) Also, allow override `make-squashfs.nix` compression parameters.
2019-01-17 14:24:44 +01:00
SQUASHFS_ZSTD = whenAtLeast "4.14" yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
# Native Language Support modules, needed by some filesystems
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
NLS = yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
NLS_DEFAULT = freeform "utf8";
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
NLS_UTF8 = module;
kernel config: Minor text fixes
2018-06-30 13:05:29 +02:00
NLS_CODEPAGE_437 = module; # VFAT default for the codepage= mount option
NLS_ISO8859_1 = module; # VFAT default for the iocharset= mount option
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
DEVTMPFS = yes;
};
security = {
# Detect writes to read-only module pages
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
DEBUG_SET_MODULE_RONX = { optional = true; tristate = whenOlder "4.11" "y"; };
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
RANDOMIZE_BASE = option yes;
STRICT_DEVMEM = option yes; # Filter access to /dev/mem
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
SECURITY_SELINUX_BOOTPARAM_VALUE = freeform "0"; # Disable SELinux by default
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
# Prevent processes from ptracing non-children processes
SECURITY_YAMA = option yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
DEVKMEM = mkIf (!features.grsecurity) no; # Disable /dev/kmem
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
USER_NS = yes; # Support for user namespaces
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
SECURITY_APPARMOR = yes;
DEFAULT_SECURITY_APPARMOR = yes;
} // optionalAttrs (!stdenv.hostPlatform.isAarch32) {
# Detect buffer overflows on the stack
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
CC_STACKPROTECTOR_REGULAR = {optional = true; tristate = whenOlder "4.18" "y";};
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
};
microcode = {
MICROCODE = yes;
MICROCODE_INTEL = yes;
MICROCODE_AMD = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
MICROCODE_EARLY = whenOlder "4.4" yes;
MICROCODE_INTEL_EARLY = whenOlder "4.4" yes;
MICROCODE_AMD_EARLY = whenOlder "4.4" yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
} // optionalAttrs (versionAtLeast version "4.10") {
# Write Back Throttling
# https://lwn.net/Articles/682582/
# https://bugzilla.kernel.org/show_bug.cgi?id=12309#c655
BLK_WBT = yes;
linux: 4.20-rc7 -> 5.0-rc1
2019-01-07 13:57:32 +01:00
BLK_WBT_SQ = whenOlder "5.0" yes; # Removed in 5.0-RC1
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
BLK_WBT_MQ = yes;
};
container = {
linux: enable CGROUP_HUGETLB, CGROUP_PERF, CGROUP_RDMA (#50225) These options were added in: NAMESPACES 2.6.25 CGROUP_DEVICE 2.6.26 CGROUP_HUGETLB 3.6 CGROUP_PERF 2.6.39 CGROUP_RDMA 4.11
2018-11-13 02:13:00 +01:00
NAMESPACES = yes; # Required by 'unshare' used by 'nixos-install'
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
RT_GROUP_SCHED = no;
linux: enable CGROUP_HUGETLB, CGROUP_PERF, CGROUP_RDMA (#50225) These options were added in: NAMESPACES 2.6.25 CGROUP_DEVICE 2.6.26 CGROUP_HUGETLB 3.6 CGROUP_PERF 2.6.39 CGROUP_RDMA 4.11
2018-11-13 02:13:00 +01:00
CGROUP_DEVICE = yes;
CGROUP_HUGETLB = yes;
CGROUP_PERF = yes;
CGROUP_RDMA = whenAtLeast "4.11" yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
MEMCG = yes;
MEMCG_SWAP = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
DEVPTS_MULTIPLE_INSTANCES = whenOlder "4.7" yes;
BLK_DEV_THROTTLING = yes;
linux: 4.20-rc7 -> 5.0-rc1
2019-01-07 13:57:32 +01:00
CFQ_GROUP_IOSCHED = whenOlder "5.0" yes; # Removed in 5.0-RC1
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
CGROUP_PIDS = whenAtLeast "4.3" yes;
};
staging = {
# Enable staging drivers. These are somewhat experimental, but
# they generally don't hurt.
STAGING = yes;
};
proc-events = {
# PROC_EVENTS requires that the netlink connector is not built
# as a module. This is required by libcgroup's cgrulesengd.
CONNECTOR = yes;
PROC_EVENTS = yes;
};
tracing = {
FTRACE = yes;
KPROBES = yes;
FUNCTION_TRACER = yes;
FTRACE_SYSCALLS = yes;
SCHED_TRACER = yes;
STACK_TRACER = yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
UPROBE_EVENT = { optional = true; tristate = whenOlder "4.11" "y";};
UPROBE_EVENTS = { optional = true; tristate = whenAtLeast "4.11" "y";};
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
BPF_SYSCALL = whenAtLeast "4.4" yes;
BPF_EVENTS = whenAtLeast "4.4" yes;
FUNCTION_PROFILER = yes;
RING_BUFFER_BENCHMARK = no;
};
virtualisation = {
PARAVIRT = option yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
HYPERVISOR_GUEST = mkIf (!features.grsecurity) yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
PARAVIRT_SPINLOCKS = option yes;
KVM_APIC_ARCHITECTURE = whenOlder "4.8" yes;
KVM_ASYNC_PF = yes;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
KVM_COMPAT = { optional = true; tristate = whenBetween "4.0" "4.12" "y"; };
KVM_DEVICE_ASSIGNMENT = { optional = true; tristate = whenBetween "3.10" "4.12" "y"; };
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
KVM_GENERIC_DIRTYLOG_READ_PROTECT = whenAtLeast "4.0" yes;
linux: convert hardened-config to a structured one
2018-10-03 11:53:23 +02:00
KVM_GUEST = mkIf (!features.grsecurity) yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
KVM_MMIO = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
KVM_VFIO = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
KSM = yes;
VIRT_DRIVERS = yes;
# We nneed 64 GB (PAE) support for Xen guest support
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
HIGHMEM64G = { optional = true; tristate = mkIf (!stdenv.is64bit) "y";};
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
VFIO_PCI_VGA = mkIf stdenv.is64bit yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
} // optionalAttrs (stdenv.isx86_64 || stdenv.isi686) ({
XEN = option yes;
# XXX: why isn't this in the xen-dom0 conditional section below?
XEN_DOM0 = option yes;
linux: fix features system
2018-06-25 02:12:17 +02:00
} // optionalAttrs features.xen_dom0 {
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
PCI_XEN = option yes;
HVC_XEN = option yes;
HVC_XEN_FRONTEND = option yes;
XEN_SYS_HYPERVISOR = option yes;
SWIOTLB_XEN = option yes;
XEN_BACKEND = option yes;
XEN_BALLOON = option yes;
XEN_BALLOON_MEMORY_HOTPLUG = option yes;
XEN_EFI = option yes;
XEN_HAVE_PVMMU = option yes;
XEN_MCE_LOG = option yes;
XEN_PVH = option yes;
XEN_PVHVM = option yes;
XEN_SAVE_RESTORE = option yes;
XEN_SCRUB_PAGES = option yes;
XEN_SELFBALLOONING = option yes;
XEN_STUB = option yes;
XEN_TMEM = option yes;
});
media = {
MEDIA_DIGITAL_TV_SUPPORT = yes;
MEDIA_CAMERA_SUPPORT = yes;
MEDIA_RC_SUPPORT = whenOlder "4.14" yes;
linux: 4.20-rc7 -> 5.0-rc1
2019-01-07 13:57:32 +01:00
MEDIA_CONTROLLER = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
MEDIA_PCI_SUPPORT = yes;
MEDIA_USB_SUPPORT = yes;
MEDIA_ANALOG_TV_SUPPORT = yes;
VIDEO_STK1160_COMMON = module;
VIDEO_STK1160_AC97 = whenOlder "4.11" yes;
};
"9p" = {
# Enable the 9P cache to speed up NixOS VM tests.
"9P_FSCACHE" = option yes;
"9P_FS_POSIX_ACL" = option yes;
};
huge-page = {
TRANSPARENT_HUGEPAGE = option yes;
TRANSPARENT_HUGEPAGE_ALWAYS = option no;
TRANSPARENT_HUGEPAGE_MADVISE = option yes;
};
zram = {
ZRAM = module;
ZSWAP = option yes;
ZBUD = option yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
ZSMALLOC = module;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
};
brcmfmac = {
# Enable PCIe and USB for the brcmfmac driver
BRCMFMAC_USB = option yes;
BRCMFMAC_PCIE = option yes;
};
# Support x2APIC (which requires IRQ remapping)
reewide: Purge all uses `stdenv.system` and top-level `system` It is deprecated and will be removed after 18.09.
2018-08-20 21:11:29 +02:00
x2apic = optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux") {
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
X86_X2APIC = yes;
IRQ_REMAP = yes;
};
kernel config: Minor text fixes
2018-06-30 13:05:29 +02:00
# Disable various self-test modules that have no use in a production system
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
tests = {
# This menu disables all/most of them on >= 4.16
RUNTIME_TESTING_MENU = option no;
} // optionalAttrs (versionOlder version "4.16") {
kernel config: Minor text fixes
2018-06-30 13:05:29 +02:00
# For older kernels, painstakingly disable each symbol.
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
ARM_KPROBES_TEST = option no;
ASYNC_RAID6_TEST = option no;
ATOMIC64_SELFTEST = option no;
BACKTRACE_SELF_TEST = option no;
INTERVAL_TREE_TEST = option no;
PERCPU_TEST = option no;
RBTREE_TEST = option no;
TEST_BITMAP = option no;
TEST_BPF = option no;
TEST_FIRMWARE = option no;
TEST_HASH = option no;
TEST_HEXDUMP = option no;
TEST_KMOD = option no;
TEST_KSTRTOX = option no;
TEST_LIST_SORT = option no;
TEST_LKM = option no;
TEST_PARMAN = option no;
TEST_PRINTF = option no;
TEST_RHASHTABLE = option no;
TEST_SORT = option no;
TEST_STATIC_KEYS = option no;
TEST_STRING_HELPERS = option no;
TEST_UDELAY = option no;
TEST_USER_COPY = option no;
TEST_UUID = option no;
} // {
CRC32_SELFTEST = option no;
CRYPTO_TEST = option no;
EFI_TEST = option no;
GLOB_SELFTEST = option no;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
DRM_DEBUG_MM_SELFTEST = { optional = true; tristate = whenOlder "4.18" "n";};
LNET_SELFTEST = { optional = true; tristate = whenOlder "4.18" "n";};
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
LOCK_TORTURE_TEST = option no;
MTD_TESTS = option no;
NOTIFIER_ERROR_INJECTION = option no;
RCU_PERF_TEST = option no;
RCU_TORTURE_TEST = option no;
TEST_ASYNC_DRIVER_PROBE = option no;
WW_MUTEX_SELFTEST = option no;
XZ_DEC_TEST = option no;
} // optionalAttrs (features.criu or false) ({
EXPERT = yes;
CHECKPOINT_RESTORE = yes;
} // optionalAttrs (features.criu_revert_expert or true) {
RFKILL_INPUT = option yes;
HID_PICOLCD_FB = option yes;
HID_PICOLCD_BACKLIGHT = option yes;
HID_PICOLCD_LCD = option yes;
HID_PICOLCD_LEDS = option yes;
HID_PICOLCD_CIR = option yes;
DEBUG_MEMORY_INIT = option yes;
});
misc = {
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
MODULE_COMPRESS = yes;
MODULE_COMPRESS_XZ = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
KERNEL_XZ = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
UNIX = yes; # Unix domain sockets.
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
MD = yes; # Device mapper (RAID, LVM, etc.)
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
# Enable initrd support.
BLK_DEV_RAM = yes;
BLK_DEV_INITRD = yes;
PM_TRACE_RTC = no; # Disable some expensive (?) features.
ACCESSIBILITY = yes; # Accessibility support
AUXDISPLAY = yes; # Auxiliary Display support
DONGLE = whenOlder "4.17" yes; # Serial dongle support
HIPPI = yes;
MTD_COMPLEX_MAPPINGS = yes; # needed for many devices
SCSI_LOWLEVEL = yes; # enable lots of SCSI devices
SCSI_LOWLEVEL_PCMCIA = yes;
SCSI_SAS_ATA = yes; # added to enable detection of hard drive
SPI = yes; # needed for many devices
SPI_MASTER = yes;
"8139TOO_8129" = yes;
"8139TOO_PIO" = no; # PIO is slower
AIC79XX_DEBUG_ENABLE = no;
AIC7XXX_DEBUG_ENABLE = no;
AIC94XX_DEBUG = no;
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
B43_PCMCIA = { optional=true; tristate = whenOlder "4.4" "y";};
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
BLK_DEV_INTEGRITY = yes;
BSD_PROCESS_ACCT_V3 = yes;
BT_HCIUART_BCSP = option yes;
BT_HCIUART_H4 = option yes; # UART (H4) protocol support
BT_HCIUART_LL = option yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
BT_RFCOMM_TTY = option yes; # RFCOMM TTY support
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
CLEANCACHE = option yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
CRASH_DUMP = option no;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
DVB_DYNAMIC_MINORS = option yes; # we use udev
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
EFI_STUB = yes; # EFI bootloader in the bzImage itself
CGROUPS = yes; # used by systemd
FHANDLE = yes; # used by systemd
SECCOMP = yes; # used by systemd >= 231
SECCOMP_FILTER = yes; # ditto
POSIX_MQUEUE = yes;
FRONTSWAP = yes;
FUSION = yes; # Fusion MPT device support
IDE = no; # deprecated IDE support
IDLE_PAGE_TRACKING = yes;
IRDA_ULTRA = whenOlder "4.17" yes; # Ultra (connectionless) protocol
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
JOYSTICK_IFORCE_232 = option yes; # I-Force Serial joysticks and wheels
JOYSTICK_IFORCE_USB = option yes; # I-Force USB joysticks and wheels
JOYSTICK_XPAD_FF = option yes; # X-Box gamepad rumble support
JOYSTICK_XPAD_LEDS = option yes; # LED Support for Xbox360 controller 'BigX' LED
KEXEC_FILE = option yes;
KEXEC_JUMP = option yes;
# Windows Logical Disk Manager (Dynamic Disk) support
LDM_PARTITION = yes;
LOGIRUMBLEPAD2_FF = yes; # Logitech Rumblepad 2 force feedback
LOGO = no; # not needed
MEDIA_ATTACH = yes;
MEGARAID_NEWGEN = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
MLX4_EN_VXLAN = whenOlder "4.8" yes;
kernel: enable MLX5_CORE_EN when possible Hydra's builders from Packet.net use this option a lot, causing lots of slow deploys.
2018-10-30 17:29:37 +01:00
MLX5_CORE_EN = option yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
MODVERSIONS = whenOlder "4.9" yes;
MOUSE_PS2_ELANTECH = yes; # Elantech PS/2 protocol extension
MTRR_SANITIZER = yes;
NET_FC = yes; # Fibre Channel driver support
# GPIO on Intel Bay Trail, for some Chromebook internal eMMC disks
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
PINCTRL_BAYTRAIL = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
# 8 is default. Modern gpt tables on eMMC may go far beyond 8.
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
MMC_BLOCK_MINORS = freeform "32";
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
REGULATOR = yes; # Voltage and Current Regulator Support
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
RC_DEVICES = option yes; # Enable IR devices
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
RT2800USB_RT53XX = yes;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
RT2800USB_RT55XX = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
SCHED_AUTOGROUP = yes;
CFS_BANDWIDTH = yes;
SCSI_LOGGING = yes; # SCSI logging facility
SERIAL_8250 = yes; # 8250/16550 and compatible serial support
SLIP_COMPRESSED = yes; # CSLIP compressed headers
SLIP_SMART = yes;
HWMON = yes;
THERMAL_HWMON = yes; # Hardware monitoring support
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
UEVENT_HELPER = no;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
USERFAULTFD = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
X86_CHECK_BIOS_CORRUPTION = yes;
X86_MCE = yes;
# Our initrd init uses shebang scripts, so can't be modular.
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
BINFMT_SCRIPT = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
# For systemd-binfmt
BINFMT_MISC = option yes;
# Disable the firmware helper fallback, udev doesn't implement it any more
FW_LOADER_USER_HELPER_FALLBACK = option no;
kernel: remove conditions based on 3.X kernels The oldest kernel in nixpkgs being 4.4, we get rid of checks for older kernels.
2018-06-23 01:54:44 +02:00
HOTPLUG_PCI_ACPI = yes; # PCI hotplug using ACPI
HOTPLUG_PCI_PCIE = yes; # PCI-Expresscard hotplug support
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
linux: avoid memory hotplug support on most platforms It broke i686 build, and it's probably not worth it on others, too. /cc #54095 e63414078a7.
2019-01-19 19:19:28 +01:00
} // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux" || stdenv.hostPlatform.system == "aarch64-linux") {
Enable memory hotplug support
2019-01-16 20:58:08 +01:00
# Enable memory hotplug support
# Allows you to dynamically add & remove memory to a VM client running NixOS without requiring a reboot
ACPI_HOTPLUG_MEMORY = yes;
MEMORY_HOTPLUG = yes;
MEMORY_HOTREMOVE = yes;
MIGRATION = yes;
SPARSEMEM = yes;
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
# Bump the maximum number of CPUs to support systems like EC2 x1.*
# instances and Xeon Phi.
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
NR_CPUS = freeform "384";
linux: translate config to structured config Instead of using a string to describe kernel config, use a nix attribute set, then converted to a string. - allows to override the config, aka convert 'yes' into 'modules' or vice-versa - while for now merging different configs is still crude (last spec wins), at least there should be only one CONFIG_XYZ value compared to the current string config where the first defined would be used and others ignored. [initial idea by copumpkin in 2016, a major rebase to 2018 by teto]
2016-01-05 15:22:43 +01:00
};
};
linux: ability to merge structured configs This should make the composability of kernel configurations more straigthforward. - now distinguish freeform options from tristate ones - will look for a structured config in kernelPatches too one can now access the structuredConfig from a kernel via linux_test.configfile.structuredConfig in order to reinject it into another kernel, no need to rewrite the config from scratch The following merge strategies are used in case of conflict: -- freeform items must be equal or they conflict (mergeEqualOption) -- for tristate (y/m/n) entries, I use the mergeAnswer strategy which takes the best available value, "best" being defined by the user (by default "y" > "m" > "n", e.g. if one entry is both marked "y" and "n", "y" wins) -- if one item is both marked optional/mandatory, mandatory wins (mergeFalseByDefault)
2018-10-03 11:49:50 +02:00
in
flattenKConf options
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