s390/mm: add kasan shadow to the debugfs pgtable dump

This change adds address space markers for kasan shadow memory.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 15 insertions, 6 deletions

diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 7cdea2ec51e9..5139c24111bc 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -3,6 +3,7 @@
 #include <linux/debugfs.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
+#include <asm/kasan.h>
 #include <asm/sections.h>
 #include <asm/pgtable.h>
 
@@ -17,18 +18,26 @@ enum address_markers_idx {
         IDENTITY_NR = 0,
         KERNEL_START_NR,
         KERNEL_END_NR,
+#ifdef CONFIG_KASAN
+        KASAN_SHADOW_START_NR,
+        KASAN_SHADOW_END_NR,
+#endif
         VMEMMAP_NR,
         VMALLOC_NR,
         MODULES_NR,
 };
 
 static struct addr_marker address_markers[] = {
-        [IDENTITY_NR]     = {0, "Identity Mapping"},
-        [KERNEL_START_NR] = {(unsigned long)_stext, "Kernel Image Start"},
-        [KERNEL_END_NR]   = {(unsigned long)_end, "Kernel Image End"},
-        [VMEMMAP_NR]      = {0, "vmemmap Area"},
-        [VMALLOC_NR]      = {0, "vmalloc Area"},
-        [MODULES_NR]      = {0, "Modules Area"},
+        [IDENTITY_NR]           = {0, "Identity Mapping"},
+        [KERNEL_START_NR]       = {(unsigned long)_stext, "Kernel Image Start"},
+        [KERNEL_END_NR]         = {(unsigned long)_end, "Kernel Image End"},
+#ifdef CONFIG_KASAN
+        [KASAN_SHADOW_START_NR] = {KASAN_SHADOW_START, "Kasan Shadow Start"},
+        [KASAN_SHADOW_END_NR]   = {KASAN_SHADOW_END, "Kasan Shadow End"},
+#endif
+        [VMEMMAP_NR]            = {0, "vmemmap Area"},
+        [VMALLOC_NR]            = {0, "vmalloc Area"},
+        [MODULES_NR]            = {0, "Modules Area"},
         { -1, NULL }
 };