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|
# This module adds Memtest86+/Memtest86 to the GRUB boot menu.
{ config, lib, pkgs, ... }:
with lib;
let
memtest86 = pkgs.memtest86plus;
efiSupport = config.boot.loader.grub.efiSupport;
cfg = config.boot.loader.grub.memtest86;
in
{
options = {
boot.loader.grub.memtest86 = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Make Memtest86+ (or MemTest86 if EFI support is enabled),
a memory testing program, available from the
GRUB boot menu. MemTest86 is an unfree program, so
this requires <literal>allowUnfree</literal> to be set to
<literal>true</literal>.
'';
};
params = mkOption {
default = [];
example = [ "console=ttyS0,115200" ];
type = types.listOf types.str;
description = ''
Parameters added to the Memtest86+ command line. As of memtest86+ 5.01
the following list of (apparently undocumented) parameters are
accepted:
<itemizedlist>
<listitem>
<para><literal>console=...</literal>, set up a serial console.
Examples:
<literal>console=ttyS0</literal>,
<literal>console=ttyS0,9600</literal> or
<literal>console=ttyS0,115200n8</literal>.</para>
</listitem>
<listitem>
<para><literal>btrace</literal>, enable boot trace.</para>
</listitem>
<listitem>
<para><literal>maxcpus=N</literal>, limit number of CPUs.</para>
</listitem>
<listitem>
<para><literal>onepass</literal>, run one pass and exit if there
are no errors.</para>
</listitem>
<listitem>
<para><literal>tstlist=...</literal>, list of tests to run.
Example: <literal>0,1,2</literal>.</para>
</listitem>
<listitem>
<para><literal>cpumask=...</literal>, set a CPU mask, to select CPUs
to use for testing.</para>
</listitem>
</itemizedlist>
This list of command line options was obtained by reading the
Memtest86+ source code.
'';
};
};
};
config = mkMerge [
(mkIf (cfg.enable && efiSupport) {
assertions = [
{
assertion = cfg.params == [];
message = "Parameters are not available for MemTest86";
}
];
boot.loader.grub.extraFiles = {
"memtest86.efi" = "${pkgs.memtest86-efi}/BOOTX64.efi";
};
boot.loader.grub.extraEntries = ''
menuentry "Memtest86" {
chainloader /memtest86.efi
}
'';
})
(mkIf (cfg.enable && !efiSupport) {
boot.loader.grub.extraEntries =
if config.boot.loader.grub.version == 2 then
''
menuentry "Memtest86+" {
linux16 @bootRoot@/memtest.bin ${toString cfg.params}
}
''
else
throw "Memtest86+ is not supported with GRUB 1.";
boot.loader.grub.extraFiles."memtest.bin" = "${memtest86}/memtest.bin";
})
];
}
|