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Use GRUB legacy loader for HP t520 to fix boot with GRUB 2.12 (#3562)
HP t520 have been reported to have the same issues as Atom boards with bad UEFI firmware that doesn't work well with the new EFI loader used since GRUB 2.12. Apply the patch to use legacy loader for its CPU ID as well. Fixes #3557
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
From c18ab299696dbb2fc092242e271068534ce9159c Mon Sep 17 00:00:00 2001 | ||
From 545edfcbb505dfa0fc007416dc8b69a8e65f9557 Mon Sep 17 00:00:00 2001 | ||
From: =?UTF-8?q?Jan=20=C4=8Cerm=C3=A1k?= <[email protected]> | ||
Date: Tue, 30 Jul 2024 18:27:24 +0200 | ||
Subject: [PATCH 1/1] loader/efi/linux: use legacy loader for broken Intel NM10 | ||
Subject: [PATCH] loader/efi/linux: use legacy loader for broken Intel NM10 | ||
platforms | ||
MIME-Version: 1.0 | ||
Content-Type: text/plain; charset=UTF-8 | ||
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@@ -23,13 +23,19 @@ that can not use the legacy loader, causing any unexpected failures. | |
[1] https://lists.gnu.org/archive/html/grub-devel/2024-05/msg00117.html | ||
[2] https://lists.gnu.org/archive/html/grub-devel/2024-07/msg00009.html | ||
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---- | ||
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Also AMD GX-212JC in HP t520 seems to be affected as reported in [3]. | ||
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[3] https://github.com/home-assistant/operating-system/issues/3557 | ||
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Signed-off-by: Jan Čermák <[email protected]> | ||
--- | ||
grub-core/loader/efi/linux.c | 65 +++++++++++++++++++++++++++++++++++- | ||
1 file changed, 64 insertions(+), 1 deletion(-) | ||
grub-core/loader/efi/linux.c | 66 +++++++++++++++++++++++++++++++++++- | ||
1 file changed, 65 insertions(+), 1 deletion(-) | ||
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diff --git a/grub-core/loader/efi/linux.c b/grub-core/loader/efi/linux.c | ||
index bfbd95aee..f4fc6d25c 100644 | ||
index bfbd95aee..efeb692f8 100644 | ||
--- a/grub-core/loader/efi/linux.c | ||
+++ b/grub-core/loader/efi/linux.c | ||
@@ -24,6 +24,7 @@ | ||
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@@ -40,7 +46,7 @@ index bfbd95aee..f4fc6d25c 100644 | |
#include <grub/types.h> | ||
#include <grub/efi/efi.h> | ||
#include <grub/efi/fdtload.h> | ||
@@ -452,6 +453,67 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), | ||
@@ -452,6 +453,68 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), | ||
return grub_errno; | ||
} | ||
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@@ -90,7 +96,8 @@ index bfbd95aee..f4fc6d25c 100644 | |
+ * false positives instead). | ||
+ */ | ||
+ return (processor_id == 0xbfebfbff00030661 // D2xxx/N2xxx | ||
+ || processor_id == 0xbfebfbff000106ca); // D525 | ||
+ || processor_id == 0xbfebfbff000106ca // D525 | ||
+ || processor_id == 0x00730f01178bfbff); // AMD GX-212JC (HP t520) | ||
+ } | ||
+ else | ||
+ { | ||
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@@ -108,7 +115,7 @@ index bfbd95aee..f4fc6d25c 100644 | |
static grub_err_t | ||
grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), | ||
int argc, char *argv[]) | ||
@@ -490,7 +552,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), | ||
@@ -490,7 +553,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), | ||
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kernel_size = grub_file_size (file); | ||
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