From 4068fd42c891ea6ebdec056f461babc6e4048844 Mon Sep 17 00:00:00 2001

From: Gary Lin <glin@suse.com>

Date: Thu, 8 Apr 2021 16:23:03 +0800

Subject: [PATCH 04/35] 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 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) {

-- 

2.32.0