File shim-bsc1184454-allocate-mok-config-table-BS.patch of Package shim-susesigned.20877

Overview Repositories Revisions Requests Users Attributes Meta

File shim-bsc1184454-allocate-mok-config-table-BS.patch of Package shim-susesigned.20877

From 33ca95024aa7e33218da5882d30b3ec690a11046 Mon Sep 17 00:00:00 2001
From: Gary Lin <glin@suse.com>
Date: Thu, 8 Apr 2021 16:23:03 +0800
Subject: [PATCH] mok: allocate MOK config table as BootServicesData

Linux kernel is picky when reserving the memory for x86 and it only
expects BootServicesData:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/platform/efi/quirks.c?h=v5.11#n254

Otherwise, the following error would show during system boot:

Apr 07 12:31:56.743925 localhost kernel: efi: Failed to lookup EFI memory descriptor for 0x000000003dcf8000

Although BootServicesData would be reclaimed after ExitBootService(),
linux kernel reserves MOK config table when it detects the existence of
the table, so it's fine to allocate the table as BootServicesData.

Signed-off-by: Gary Lin <glin@suse.com>
---
 mok.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mok.c b/mok.c
index 5ad9072b..fc1ee04d 100644
--- a/mok.c
+++ b/mok.c
@@ -1002,7 +1002,7 @@ EFI_STATUS import_mok_state(EFI_HANDLE image_handle)
 		npages = ALIGN_VALUE(config_sz, PAGE_SIZE) >> EFI_PAGE_SHIFT;
 		config_table = NULL;
 		efi_status = gBS->AllocatePages(AllocateAnyPages,
-						EfiRuntimeServicesData,
+						EfiBootServicesData,
 						npages,
 						(EFI_PHYSICAL_ADDRESS *)&config_table);
 		if (EFI_ERROR(efi_status) || !config_table) {
-- 
2.29.2

Places

File shim-bsc1184454-allocate-mok-config-table-BS.patch of Package shim-susesigned.20877

Places