1 files changed, 5 insertions, 0 deletions

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 1dcb66533dfc..7b7685b78852 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1117,6 +1117,9 @@ static int __init parse_memopt(char *p)
 
         mem_size = memparse(p, &p);
         end_user_pfn = mem_size>>PAGE_SHIFT;
+        e820_update_range(mem_size, ULLONG_MAX - mem_size,
+                E820_RAM, E820_RESERVED);
+
         return 0;
 }
 early_param("mem", parse_memopt);
@@ -1161,6 +1164,8 @@ static int __init parse_memmap_opt(char *p)
                 e820_add_region(start_at, mem_size, E820_RESERVED);
         } else {
                 end_user_pfn = (mem_size >> PAGE_SHIFT);
+                e820_update_range(mem_size, ULLONG_MAX - mem_size,
+                        E820_RAM, E820_RESERVED);
         }
         return *p == '\0' ? 0 : -EINVAL;
 }