xnu-7195.101.1.tar.gz

[apple/xnu.git] / osfmk / arm / cpu_capabilities.h

diff --git a/osfmk/arm/cpu_capabilities.h b/osfmk/arm/cpu_capabilities.h
index 738e94f02e9af9150c1ba49a99ee6f4a82dec988..dc5d2d20e485c3318ea8b612a4063688358b9193 100644 (file)
--- a/osfmk/arm/cpu_capabilities.h
+++ b/osfmk/arm/cpu_capabilities.h
@@ -158,6 +158,10 @@ _Static_assert((_COMM_PAGE64_BASE_ADDRESS >= _COMM_PAGE64_NESTING_START) &&
     "region probably needs to be updated.");
 
 #else /* KERNEL_PRIVATE */
+/*
+ * <sys/commpage.h> defines a couple of conveniency macros
+ * to help read data from the commpage.
+ */
 #define _COMM_PAGE_AREA_LENGTH                  (4096)
 
 #define _COMM_PAGE_BASE_ADDRESS                 _COMM_PAGE64_BASE_ADDRESS