forked from DGNum/liminix
51 lines
1.4 KiB
Nix
51 lines
1.4 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 concatStringsSep;
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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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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 pkgs.runCommand "mbrimage" {
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depsBuildBuild = [ pkgs.pkgsBuildBuild.util-linux ];
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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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