X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/eee3565979933af707c711411001ba11fe406a3c..813fb2f63a553c957e917ede5f119b021d6ce391:/osfmk/i386/i386_init.c

diff --git a/osfmk/i386/i386_init.c b/osfmk/i386/i386_init.c
index d4d22ae57..2d8abbdb6 100644
--- a/osfmk/i386/i386_init.c
+++ b/osfmk/i386/i386_init.c
@@ -117,7 +117,12 @@ extern const char	version[];
 extern const char	version_variant[];
 extern int		nx_enabled;
 
-uint64_t		physmap_base, physmap_max;
+/*
+ * Set initial values so that ml_phys_* routines can use the booter's ID mapping
+ * to touch physical space before the kernel's physical aperture exists.
+ */
+uint64_t		physmap_base = 0;
+uint64_t		physmap_max = 4*GB;
 
 pd_entry_t		*KPTphys;
 pd_entry_t		*IdlePTD;