Commit edcfc9c7 authored by Heiko Carstens's avatar Heiko Carstens Committed by Vasily Gorbik
Browse files

s390/ptdump: add missing amode31 markers 



Add amode31 markers which makes a ro mapping in the middle of
nowhere in the kernel_page_tables output less magic.

Reviewed-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent b193d2d4

arch/s390/mm/dump_pagetables.c

+6 −0
Original line number Diff line number Diff line
@@ -21,6 +21,8 @@ struct addr_marker { 
enum address_markers_idx {

	IDENTITY_BEFORE_NR = 0,

	IDENTITY_BEFORE_END_NR,

	AMODE31_START_NR,

	AMODE31_END_NR,

	KERNEL_START_NR,

	KERNEL_END_NR,

#ifdef CONFIG_KFENCE
@@ -44,6 +46,8 @@ enum address_markers_idx { 
static struct addr_marker address_markers[] = {

	[IDENTITY_BEFORE_NR]	= {0, "Identity Mapping Start"},

	[IDENTITY_BEFORE_END_NR] = {(unsigned long)_stext, "Identity Mapping End"},

	[AMODE31_START_NR]	= {0, "Amode31 Area Start"},

	[AMODE31_END_NR]	= {0, "Amode31 Area End"},

	[KERNEL_START_NR]	= {(unsigned long)_stext, "Kernel Image Start"},

	[KERNEL_END_NR]		= {(unsigned long)_end, "Kernel Image End"},

#ifdef CONFIG_KFENCE
@@ -276,6 +280,8 @@ static int pt_dump_init(void) 
	max_addr = (S390_lowcore.kernel_asce & _REGION_ENTRY_TYPE_MASK) >> 2;

	max_addr = 1UL << (max_addr * 11 + 31);

	address_markers[IDENTITY_AFTER_END_NR].start_address = ident_map_size;

	address_markers[AMODE31_START_NR].start_address = __samode31;

	address_markers[AMODE31_END_NR].start_address = __eamode31;

	address_markers[MODULES_NR].start_address = MODULES_VADDR;

	address_markers[MODULES_END_NR].start_address = MODULES_END;

	address_markers[VMEMMAP_NR].start_address = (unsigned long) vmemmap;