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Diffstat (limited to 'gnu/bootloader/depthcharge.scm')
| -rw-r--r-- | gnu/bootloader/depthcharge.scm | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/gnu/bootloader/depthcharge.scm b/gnu/bootloader/depthcharge.scm new file mode 100644 index 0000000000..58cc3f3932 --- /dev/null +++ b/gnu/bootloader/depthcharge.scm @@ -0,0 +1,107 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2019 Timothy Sample <samplet@ngyro.com> +;;; +;;; This file is part of GNU Guix. +;;; +;;; GNU Guix is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 3 of the License, or (at +;;; your option) any later version. +;;; +;;; GNU Guix is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. + +(define-module (gnu bootloader depthcharge) + #:use-module (gnu bootloader extlinux) + #:use-module (gnu bootloader) + #:use-module (gnu packages bootloaders) + #:use-module (guix gexp) + #:use-module (guix utils) + #:use-module (ice-9 match) + #:export (depthcharge-bootloader)) + +(define (signed-kernel kernel kernel-arguments initrd) + (define builder + (with-imported-modules '((guix build utils)) + #~(begin + (use-modules (guix build utils) + (ice-9 binary-ports) + (rnrs bytevectors)) + (set-path-environment-variable "PATH" '("bin") (list #$dtc)) + + ;; TODO: These files have to be writable, so we copy them. + ;; This can probably be fixed by using a ".its" file, just + ;; be careful not to break initrd loading. + (copy-file #$kernel "zImage") + (chmod "zImage" #o755) + (copy-file (string-append (dirname #$kernel) "/lib/dtbs/" + "rk3288-veyron-speedy.dtb") + "rk3288-veyron-speedy.dtb") + (chmod "rk3288-veyron-speedy.dtb" #o644) + (copy-file #$initrd "initrd") + (chmod "initrd" #o644) + + (invoke (string-append #$u-boot-tools "/bin/mkimage") + "-D" "-I dts -O dtb -p 2048" + "-f" "auto" + "-A" "arm" + "-O" "linux" + "-T" "kernel" + "-C" "None" + "-d" "zImage" + "-a" "0" + "-b" "rk3288-veyron-speedy.dtb" + "-i" "initrd" + "image.itb") + (call-with-output-file "bootloader.bin" + (lambda (port) + (put-bytevector port (make-bytevector 512 0)))) + (with-output-to-file "kernel-arguments" + (lambda () + (display (string-join (list #$@kernel-arguments))))) + (invoke (string-append #$vboot-utils "/bin/vbutil_kernel") + "--pack" #$output + "--version" "1" + "--vmlinuz" "image.itb" + "--arch" "arm" + "--keyblock" (string-append #$vboot-utils + "/share/vboot-utils/devkeys/" + "kernel.keyblock") + "--signprivate" (string-append #$vboot-utils + "/share/vboot-utils/devkeys/" + "kernel_data_key.vbprivk") + "--config" "kernel-arguments" + "--bootloader" "bootloader.bin")))) + (computed-file "vmlinux.kpart" builder)) + +(define* (depthcharge-configuration-file config entries + #:key + (system (%current-system)) + (old-entries '())) + (match entries + ((entry) + (let ((kernel (menu-entry-linux entry)) + (kernel-arguments (menu-entry-linux-arguments entry)) + (initrd (menu-entry-initrd entry))) + ;; XXX: Make this a symlink. + (signed-kernel kernel kernel-arguments initrd))) + (_ (error "Too many bootloader menu entries!")))) + +(define install-depthcharge + #~(lambda (bootloader device mount-point) + (let ((kpart (string-append mount-point + "/boot/depthcharge/vmlinux.kpart"))) + (write-file-on-device kpart (stat:size (stat kpart)) device 0)))) + +(define depthcharge-bootloader + (bootloader + (name 'depthcharge) + (package #f) + (installer install-depthcharge) + (configuration-file "/boot/depthcharge/vmlinux.kpart") + (configuration-file-generator depthcharge-configuration-file))) |