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nixos-generate-config: automatically enable microcode updates

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Artturin 2021-11-15 22:18:05 +02:00
parent 0d67f33cbe
commit f93a7f8b56
1 changed files with 8 additions and 0 deletions
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8
nixos/modules/installer/tools/nixos-generate-config.pl
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@ -91,6 +91,11 @@ sub hasCPUFeature {
}
sub cpuManufacturer {
my $id = shift;
return $cpuinfo =~ /^vendor_id\s*:.* $id$/m;
}
# Determine CPU governor to use
if (-e "/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors") {
@ -111,6 +116,9 @@ if (-e "/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors") {
push @kernelModules, "kvm-intel" if hasCPUFeature "vmx";
push @kernelModules, "kvm-amd" if hasCPUFeature "svm";
push @attrs, "hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;" if cpuManufacturer "AuthenticAMD";
push @attrs, "hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;" if cpuManufacturer "GenuineIntel";
# Look at the PCI devices and add necessary modules. Note that most
# modules are auto-detected so we don't need to list them here.