Daniel Barlow
7e2b0068e6
There is nothing in this commit except for the changes made by nix-shell -p nixfmt-rfc-style --run "nixfmt ." If this has mucked up your open branches then sorry about that. You can probably nixfmt them to match before merging
56 lines
1.5 KiB
Nix
56 lines
1.5 KiB
Nix
{
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config,
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pkgs,
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lib,
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...
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}:
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let
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inherit (lib) mkOption types;
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o = config.system.outputs;
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phram_address = lib.toHexString (config.hardware.ram.startAddress + 256 * 1024 * 1024);
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in
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{
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options.system.outputs = {
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mbrimage = mkOption {
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type = types.package;
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description = ''
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mbrimage
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*********
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This creates a disk image file with a partition table containing
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the contents of ``outputs.rootfs`` as its only partition.
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'';
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};
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vmdisk = mkOption { type = types.package; };
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};
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config = {
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system.outputs = {
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mbrimage =
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let
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o = config.system.outputs;
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in
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pkgs.runCommand "mbrimage"
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{
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depsBuildBuild = [ pkgs.pkgsBuildBuild.util-linux ];
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}
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''
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# leave 4 sectors at start for partition table
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# and alignment to 2048 bytes (does that help?)
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dd if=${o.rootfs} of=$out bs=512 seek=4 conv=sync
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echo '4,-,L,*' | sfdisk $out
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'';
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vmdisk = pkgs.runCommand "vmdisk" { } ''
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mkdir $out
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cd $out
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ln -s ${o.mbrimage} ./mbrimage
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cat > run.sh <<EOF
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#!${pkgs.runtimeShell}
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${pkgs.pkgsBuildBuild.run-liminix-vm}/bin/run-liminix-vm --arch ${pkgs.stdenv.hostPlatform.qemuArch} --u-boot ${o.u-boot}/u-boot.bin --phram-address 0x${phram_address} --disk-image ${o.mbrimage} \$* /dev/null /dev/null
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EOF
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chmod +x run.sh
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'';
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};
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};
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}
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