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49 lines
1.6 KiB
Diff
49 lines
1.6 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Robinson <pbrobinson@gmail.com>
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Date: Thu, 20 Jun 2019 16:21:48 +0100
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Subject: [PATCH] linux, efi, arm*, fdt: break FDT extra allocation space out
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into a #define
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A certain amount of dynamic space is required for the handover from
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GRUB/Linux-EFI-stub. This entails things like initrd addresses,
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address-cells entries and associated strings.
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But move this into a proper centralised #define rather than live-code
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it in the loader.
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Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
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---
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grub-core/loader/arm64/linux.c | 2 +-
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include/grub/fdt.h | 3 +++
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2 files changed, 4 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 e1110749eb9..628b320618c 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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@@ -73,7 +73,7 @@ finalize_params_linux (void)
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grub_err_t err = GRUB_ERR_NONE;
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void *fdt;
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- fdt = grub_fdt_load (0x400);
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+ fdt = grub_fdt_load (GRUB_EFI_LINUX_FDT_EXTRA_SPACE);
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if (!fdt)
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{
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err = grub_error(GRUB_ERR_BAD_OS, "failed to load FDT");
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diff --git a/include/grub/fdt.h b/include/grub/fdt.h
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index e34644631e1..2041341fd68 100644
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--- a/include/grub/fdt.h
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+++ b/include/grub/fdt.h
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@@ -24,6 +24,9 @@
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#include <grub/types.h>
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#include <grub/symbol.h>
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+/* Space required when preparing the /chosen node after boot has been called. */
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+#define GRUB_EFI_LINUX_FDT_EXTRA_SPACE 0x400
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+
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#define FDT_MAGIC 0xD00DFEED
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typedef struct {
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