[platform][pc] fix memory map handling in multiboot

The starting address of mmap is off by 4 bytes. Signed-off-by: Xi Wang <xi.wang@gmail.com>
littlekernel · Jul 30, 2017 · 63fa995 · 63fa995
1 parent 9fa0924
commit 63fa995
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/platform/pc/platform.c b/platform/pc/platform.c
@@ -191,7 +191,7 @@ void platform_init_multiboot_info(void)
         }
 
         if (_multiboot_info->flags & MB_INFO_MMAP) {
-            memory_map_t *mmap = (memory_map_t *)(uintptr_t)(_multiboot_info->mmap_addr - 4);
+            memory_map_t *mmap = (memory_map_t *)(uintptr_t)_multiboot_info->mmap_addr;
             mmap = (void *)((uintptr_t)mmap + KERNEL_BASE);
 
             LTRACEF("memory map:\n");