blob: 948b89b91bdb08364c73f456b95f8af8891b5b83 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
commit 4068fd42c891ea6ebdec056f461babc6e4048844
Author: Gary Lin <glin@suse.com>
Date: Thu Apr 8 16:23:03 2021 +0800
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>
diff --git a/mok.c b/mok.c
index 9e37d6ab..9b8fc2bc 100644
--- a/mok.c
+++ b/mok.c
@@ -999,7 +999,7 @@ 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) {
|
