x86: make e820_end return max ram type only for 32 bit

to avoid warning from find_low_pfn_range for high pages size etc

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 2e08619a9c5c..292ebc7fe4d0 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1066,6 +1066,11 @@ unsigned long __init e820_end(void)
                 struct e820entry *ei = &e820.map[i];
                 unsigned long end_pfn;
 
+#ifdef CONFIG_X86_32
+                if (ei->type != E820_RAM)
+                        continue;
+#endif
+
                 end_pfn = (ei->addr + ei->size) >> PAGE_SHIFT;
                 if (end_pfn > last_pfn)
                         last_pfn = end_pfn;