1 files changed, 4 insertions, 1 deletions

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index d32abeabbda5..174da5fc5a7b 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -658,15 +658,18 @@ __init void e820_setup_gap(void)
  * boot_params.e820_map, others are passed via SETUP_E820_EXT node of
  * linked list of struct setup_data, which is parsed here.
  */
-void __init parse_e820_ext(struct setup_data *sdata)
+void __init parse_e820_ext(u64 phys_addr, u32 data_len)
 {
         int entries;
         struct e820entry *extmap;
+        struct setup_data *sdata;
 
+        sdata = early_memremap(phys_addr, data_len);
         entries = sdata->len / sizeof(struct e820entry);
         extmap = (struct e820entry *)(sdata->data);
         __append_e820_map(extmap, entries);
         sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+        early_iounmap(sdata, data_len);
         printk(KERN_INFO "e820: extended physical RAM map:\n");
         e820_print_map("extended");
 }