X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=arch%2Fx86%2Finclude%2Fasm%2Fe820.h;h=ec8a52d14ab179e4ef086e9c65c5a28917cdfd70;hb=7c7cbaf5b82c418cd3b1dcf718f71d0e6057e639;hp=0e22296790d31e4efa444c589eb9d14596ff33d1;hpb=66b89159c25a47d2177743526c61b5ada7acc39e;p=linux-2.6-block.git

diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
index 0e22296790d3..ec8a52d14ab1 100644
--- a/arch/x86/include/asm/e820.h
+++ b/arch/x86/include/asm/e820.h
@@ -45,7 +45,12 @@
 #define E820_NVS	4
 #define E820_UNUSABLE	5
 
-/* reserved RAM used by kernel itself */
+/*
+ * reserved RAM used by kernel itself
+ * if CONFIG_INTEL_TXT is enabled, memory of this type will be
+ * included in the S3 integrity calculation and so should not include
+ * any memory that BIOS might alter over the S3 transition
+ */
 #define E820_RESERVED_KERN        128
 
 #ifndef __ASSEMBLY__