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efi_loader: provide efi_mem_desc version 

Provide version of struct efi_mem_desc in efi_get_memory_map().

EFI_BOOT_SERVICES.GetMemoryMap() in UEFI specification v2.6 defines
memory descriptor version to 1. Linux kernel also expects descriptor
version to be 1 and prints following warning during boot if its not:

Unexpected EFI_MEMORY_DESCRIPTOR version 0

Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@gmail.com>
This commit is contained in:
Mian Yousaf Kaukab 2016-09-05 23:59:22 +02:00 committed by Tom Rini
parent bac17b78da
commit 4c02c11de8
2 changed files with 5 additions and 0 deletions
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2
include/efi.h
View File

@ -159,6 +159,8 @@ struct efi_mem_desc {
u64 attribute;
};
#define EFI_MEMORY_DESCRIPTOR_VERSION 1
/* Allocation types for calls to boottime->allocate_pages*/
#define EFI_ALLOCATE_ANY_PAGES 0
#define EFI_ALLOCATE_MAX_ADDRESS 1

3
lib/efi_loader/efi_memory.c
View File

@ -339,6 +339,9 @@ efi_status_t efi_get_memory_map(unsigned long *memory_map_size,
if (descriptor_size)
*descriptor_size = sizeof(struct efi_mem_desc);
if (descriptor_version)
*descriptor_version = EFI_MEMORY_DESCRIPTOR_VERSION;
if (*memory_map_size < map_size)
return EFI_BUFFER_TOO_SMALL;