60 lines
1.4 KiB
Diff
60 lines
1.4 KiB
Diff
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From aa89157d137ee6d63ff41a72a5744ef5ebba112d Mon Sep 17 00:00:00 2001
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From: Julian Winkler <julian.winkler1@web.de>
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Date: Sat, 18 Feb 2023 22:31:04 +0100
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Subject: [PATCH 1/2] discover/grub2: implement 'devicetree' command
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This change adds support for the grub2 'devicetree' command, loading a
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dtb file from filesystem.
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---
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discover/grub2/builtins.c | 27 +++++++++++++++++++++++++++
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1 file changed, 27 insertions(+)
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diff --git a/discover/grub2/builtins.c b/discover/grub2/builtins.c
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index ff28586..c96b181 100644
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--- a/discover/grub2/builtins.c
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+++ b/discover/grub2/builtins.c
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@@ -102,6 +102,29 @@ static int builtin_initrd(struct grub2_script *script,
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return 0;
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}
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+static int builtin_devicetree(struct grub2_script *script,
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+ void *data __attribute__((unused)),
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+ int argc, char *argv[])
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+{
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+ struct discover_boot_option *opt = script->opt;
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+
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+ if (!opt) {
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+ pb_log("grub2 syntax error: 'devicetree' statement outside "
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+ "a menuentry.\n");
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+ return -1;
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+ }
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+
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+ if (argc < 2) {
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+ pb_log("grub2 syntax error: no filename provided to "
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+ "devicetree statement\n");
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+ return -1;
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+ }
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+
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+ opt->dtb = create_grub2_resource(script, opt, argv[1]);
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+
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+ return 0;
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+}
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+
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static const struct option search_options[] = {
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{
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.name = "set",
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@@ -511,6 +534,10 @@ static struct {
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.name = "initrd16",
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.fn = builtin_initrd,
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},
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+ {
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+ .name = "devicetree",
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+ .fn = builtin_devicetree,
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+ },
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{
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.name = "search",
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.fn = builtin_search,
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--
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2.39.1
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