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Use GRUB legacy loader for HP t520 to fix boot with GRUB 2.12 (#3562)

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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
This commit is contained in:
Jan Čermák 2024-08-26 14:34:06 +02:00 committed by GitHub
parent c6d4e2788e
commit 5eb7ccb761
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GPG Key ID: B5690EEEBB952194
1 changed files with 15 additions and 8 deletions
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23
buildroot-external/patches/grub2/0002-loader-efi-linux-use-legacy-loader-for-broken-Intel-.patch
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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?= <sairon@sairon.cz>
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
@ -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
----
Also AMD GX-212JC in HP t520 seems to be affected as reported in [3].
[3] https://github.com/home-assistant/operating-system/issues/3557
Signed-off-by: Jan Čermák <sairon@sairon.cz>
---
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(-)
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 @@
@ -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;
}
@ -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
+ {
@ -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)),
kernel_size = grub_file_size (file);