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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Mark Salter <msalter@redhat.com>
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Date: Mon, 17 Apr 2017 08:44:29 -0400
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Subject: [PATCH] arm64: make sure fdt has #address-cells and #size-cells
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properties
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Recent upstream changes to kexec-tools relies on #address-cells
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and #size-cells properties in the FDT. If grub2 needs to create
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a chosen node, it is likely because firmware did not provide one.
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In that case, set #address-cells and #size-cells properties to
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make sure they exist.
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---
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grub-core/loader/arm64/linux.c | 16 +++++++++++++++-
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1 file changed, 15 insertions(+), 1 deletion(-)
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diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c
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index 0452a20e98b..1eb332a892c 100644
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--- a/grub-core/loader/arm64/linux.c
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+++ b/grub-core/loader/arm64/linux.c
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@@ -147,7 +147,21 @@ finalize_params (void)
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node = grub_fdt_find_subnode (fdt, 0, "chosen");
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if (node < 0)
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- node = grub_fdt_add_subnode (fdt, 0, "chosen");
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+ {
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+ /*
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+ * If we have to create a chosen node, Make sure we
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+ * have #address-cells and #size-cells properties.
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+ */
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+ retval = grub_fdt_set_prop32(fdt, 0, "#address-cells", 2);
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+ if (retval)
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+ goto failure;
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+
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+ retval = grub_fdt_set_prop32(fdt, 0, "#size-cells", 2);
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+ if (retval)
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+ goto failure;
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+
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+ node = grub_fdt_add_subnode (fdt, 0, "chosen");
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+ }
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if (node < 1)
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goto failure;
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