diff --git a/sys/kern/link_elf.c b/sys/kern/link_elf.c
index 03f9ae63d9a..266b9d0b06b 100644
--- a/sys/kern/link_elf.c
+++ b/sys/kern/link_elf.c
@@ -51,6 +51,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/fcntl.h>
 #include <sys/vnode.h>
 #include <sys/linker.h>
+#include <sys/sysctl.h>
 
 #include <machine/elf.h>
 
@@ -389,6 +390,13 @@ link_elf_link_common_finish(linker_file_t lf)
 
 extern vm_offset_t __startkernel, __endkernel;
 
+static unsigned long kern_relbase = KERNBASE;
+
+SYSCTL_ULONG(_kern, OID_AUTO, base_address, CTLFLAG_RD,
+	SYSCTL_NULL_ULONG_PTR, KERNBASE, "Kernel base address");
+SYSCTL_ULONG(_kern, OID_AUTO, relbase_address, CTLFLAG_RD,
+	&kern_relbase, 0, "Kernel relocated base address");
+
 static void
 link_elf_init(void* arg)
 {
@@ -431,6 +439,7 @@ link_elf_init(void* arg)
 #ifdef __powerpc__
 	linker_kernel_file->address = (caddr_t)__startkernel;
 	linker_kernel_file->size = (intptr_t)(__endkernel - __startkernel);
+	kern_relbase = (unsigned long)__startkernel;
 #else
 	linker_kernel_file->address += KERNBASE;
 	linker_kernel_file->size = -(intptr_t)linker_kernel_file->address;