From dede284d1ce9f9d9e79a5114fe7eb814fec07679 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Andreas=20F=C3=A4rber?= <afaerber@suse.de>
Date: Wed, 13 Apr 2016 14:04:38 +0200
Subject: [PATCH] efi_loader: Handle memory overflows
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit
jetson-tk1 has 2 GB of RAM at 0x80000000, causing gd->ram_top to be zero.
Handle this by either avoiding ram_top or by using the same type as
ram_top to reverse the overflow effect.
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
---
lib/efi_loader/efi_memory.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index df995858ed..71a3d19269 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -220,7 +220,7 @@ efi_status_t efi_allocate_pages(int type, int memory_type,
switch (type) {
case 0:
/* Any page */
- addr = efi_find_free_memory(len, gd->ram_top);
+ addr = efi_find_free_memory(len, gd->start_addr_sp);
if (!addr) {
r = EFI_NOT_FOUND;
break;
@@ -320,9 +320,9 @@ efi_status_t efi_get_memory_map(unsigned long *memory_map_size,
int efi_memory_init(void)
{
- uint64_t runtime_start, runtime_end, runtime_pages;
- uint64_t uboot_start, uboot_pages;
- uint64_t uboot_stack_size = 16 * 1024 * 1024;
+ unsigned long runtime_start, runtime_end, runtime_pages;
+ unsigned long uboot_start, uboot_pages;
+ unsigned long uboot_stack_size = 16 * 1024 * 1024;
int i;
/* Add RAM */
--
2.39.5