[PATCH 1/1] efi_loader: fix efi_add_known_memory()
Heinrich Schuchardt
heinrich.schuchardt at canonical.com
Mon Aug 14 08:01:31 CEST 2023
In efi_add_known_memory() we currently call board_get_usable_ram_top() with
an incorrect value 0 of parameter total_size. This leads to an incorrect
value for ram_top depending on the code in board_get_usable_ram_top().
Use the value of gd->ram_top instead which is set before relocation by
calling board_get_usable_ram_top().
Fixes: 7b78d6438a2b ("efi_loader: Reserve unaccessible memory")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
lib/efi_loader/efi_memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index ebf4a2d5fa..f752703b43 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -877,7 +877,7 @@ efi_status_t efi_add_conventional_memory_map(u64 ram_start, u64 ram_end,
*/
__weak void efi_add_known_memory(void)
{
- u64 ram_top = board_get_usable_ram_top(0) & ~EFI_PAGE_MASK;
+ u64 ram_top = gd->ram_top & ~EFI_PAGE_MASK;
int i;
/*
--
2.40.1
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