Subject: [PATCH] x86: allow NVS can be accessed by driver

APEI related...

Signed-off-by: Yinghai Lu <yinghai@kernel.org>

---
 arch/x86/kernel/e820.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux-2.6/arch/x86/kernel/e820.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/e820.c
+++ linux-2.6/arch/x86/kernel/e820.c
@@ -995,7 +995,8 @@ void __init e820_reserve_resources(void)
 		 * pcibios_resource_survey()
 		 */
 		if (e820.map[i].type != E820_RESERVED || res->start < (1ULL<<20)) {
-			res->flags |= IORESOURCE_BUSY;
+			if (e820.map[i].type != E820_NVS)
+				res->flags |= IORESOURCE_BUSY;
 			insert_resource(&iomem_resource, res);
 		}
 		res++;