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arm-trusted-firmware: add unfreeIncludeHDCPBlob?true to control license and blob-removal patch

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This change implements @lukegb's idea:

  https://github.gitop.top/NixOS/nixpkgs/issues/148890#issuecomment-1032002903

Specifically, it introduces a new parameter unfreeIncludeHDCPBlob
(defaults to true):

* If unfreeIncludeHDCPBlob==true then the license is changed to
  unfreeRedistributable, which will alert the user to the fact that
  the blob is being included (unless they set NIXPKGS_ALLOW_UNFREE=1).

* If unfreeIncludeHDCPBlob==false then the license is kept as bsd3, but
  a patch is applied to remove the HDCP blob from the build.
This commit is contained in:
Adam Joseph 2022-02-08 01:44:21 -08:00
parent bb0a925a76
commit a5b8650f8d
1 changed files with 11 additions and 3 deletions
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14
pkgs/misc/arm-trusted-firmware/default.nix
View file

@ -1,4 +1,9 @@
{ lib, stdenv, fetchFromGitHub, openssl, pkgsCross, buildPackages }:
{ lib, stdenv, fetchFromGitHub, openssl, pkgsCross, buildPackages
# Warning: this blob runs on the main CPU (not the GPU) at privilege
# level EL3, which is above both the kernel and the hypervisor.
, unfreeIncludeHDCPBlob ? true
}:
let
buildArmTrustedFirmware = { filesToInstall
@ -20,7 +25,10 @@ let
sha256 = "sha256-qT9DdTvMcUrvRzgmVf2qmKB+Rb1WOB4p1rM+fsewGcg=";
};
patches = [ ./remove-hdcp-blob.patch ];
patches = lib.optionals (!unfreeIncludeHDCPBlob) [
# this is a rebased version of https://gitlab.com/vicencb/kevinboot/-/blob/master/atf.patch
./remove-hdcp-blob.patch
];
depsBuildBuild = [ buildPackages.stdenv.cc ];
@ -52,7 +60,7 @@ let
meta = with lib; {
homepage = "https://github.com/ARM-software/arm-trusted-firmware";
description = "A reference implementation of secure world software for ARMv8-A";
license = licenses.bsd3;
license = if unfreeIncludeHDCPBlob then licenses.unfreeRedistributable else licenses.bsd3;
maintainers = with maintainers; [ lopsided98 ];
} // extraMeta;
} // builtins.removeAttrs args [ "extraMeta" ]);