Adding upstream version 6.10.3.upstream/6.10.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

78 files changed, 1005 insertions, 952 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 8f01ada684..c59d2b54df 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -17,6 +17,9 @@ config ARCH_HAS_ILOG2_U32
 config ARCH_HAS_ILOG2_U64
 	def_bool n
 
+config ARCH_PROC_KCORE_TEXT
+	def_bool y
+
 config GENERIC_HWEIGHT
 	def_bool y
 
@@ -174,7 +177,7 @@ config S390
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_EBPF_JIT if HAVE_MARCH_Z196_FEATURES
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
-	select HAVE_FAST_GUP
+	select HAVE_GUP_FAST
 	select HAVE_FENTRY
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_ARG_ACCESS_API
@@ -552,7 +555,7 @@ config EXPOLINE
 	  If unsure, say N.
 
 config EXPOLINE_EXTERN
-	def_bool n
+	def_bool y if EXPOLINE
 	depends on EXPOLINE
 	depends on CC_IS_GCC && GCC_VERSION >= 110200
 	depends on $(success,$(srctree)/arch/s390/tools/gcc-thunk-extern.sh $(CC))
@@ -590,18 +593,6 @@ config RELOCATABLE
 	  Note: this option exists only for documentation purposes, please do
 	  not remove it.
 
-config PIE_BUILD
-	def_bool CC_IS_CLANG && !$(cc-option,-munaligned-symbols)
-	help
-	  If the compiler is unable to generate code that can manage unaligned
-	  symbols, the kernel is linked as a position-independent executable
-	  (PIE) and includes dynamic relocations that are processed early
-	  during bootup.
-
-	  For kpatch functionality, it is recommended to build the kernel
-	  without the PIE_BUILD option. PIE_BUILD is only enabled when the
-	  compiler lacks proper support for handling unaligned symbols.
-
 config RANDOMIZE_BASE
 	bool "Randomize the address of the kernel image (KASLR)"
 	default y
@@ -611,6 +602,25 @@ config RANDOMIZE_BASE
 	  as a security feature that deters exploit attempts relying on
 	  knowledge of the location of kernel internals.
 
+config KERNEL_IMAGE_BASE
+	hex "Kernel image base address"
+	range 0x100000 0x1FFFFFE0000000 if !KASAN
+	range 0x100000 0x1BFFFFE0000000 if KASAN
+	default 0x3FFE0000000 if !KASAN
+	default 0x7FFFE0000000 if KASAN
+	help
+	  This is the address at which the kernel image is loaded in case
+	  Kernel Address Space Layout Randomization (KASLR) is disabled.
+
+	  In case the Protected virtualization guest support is enabled the
+	  Ultravisor imposes a virtual address limit. If the value of this
+	  option leads to the kernel image exceeding the Ultravisor limit,
+	  this option is ignored and the image is loaded below the limit.
+
+	  If the value of this option leads to the kernel image overlapping
+	  the virtual memory where other data structures are located, this
+	  option is ignored and the image is loaded above the structures.
+
 endmenu
 
 menu "Memory setup"
@@ -724,6 +734,33 @@ config EADM_SCH
 	  To compile this driver as a module, choose M here: the
 	  module will be called eadm_sch.
 
+config AP
+	def_tristate y
+	prompt "Support for Adjunct Processors (ap)"
+	help
+	  This driver allows usage to Adjunct Processor (AP) devices via
+	  the ap bus, cards and queues. Supported Adjunct Processors are
+	  the CryptoExpress Cards (CEX).
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ap.
+
+	  If unsure, say Y (default).
+
+config AP_DEBUG
+	def_bool n
+	prompt "Enable debug features for Adjunct Processor (ap) devices"
+	depends on AP
+	help
+	  Say 'Y' here to enable some additional debug features for Adjunct
+	  Processor (ap) devices.
+
+	  There will be some more sysfs attributes displayed for ap queues.
+
+	  Do not enable on production level kernel build.
+
+	  If unsure, say N.
+
 config VFIO_CCW
 	def_tristate n
 	prompt "Support for VFIO-CCW subchannels"
@@ -740,7 +777,7 @@ config VFIO_AP
 	prompt "VFIO support for AP devices"
 	depends on KVM
 	depends on VFIO
-	depends on ZCRYPT
+	depends on AP
 	select VFIO_MDEV
 	help
 	  This driver grants access to Adjunct Processor (AP) devices
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 2dbb2d2f22..f2b21c7a70 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -14,14 +14,9 @@ KBUILD_AFLAGS_MODULE += -fPIC
 KBUILD_CFLAGS_MODULE += -fPIC
 KBUILD_AFLAGS	+= -m64
 KBUILD_CFLAGS	+= -m64
-ifdef CONFIG_PIE_BUILD
-KBUILD_CFLAGS	+= -fPIE
-LDFLAGS_vmlinux	:= -pie -z notext
-else
-KBUILD_CFLAGS	+= $(call cc-option,-munaligned-symbols,)
-LDFLAGS_vmlinux	:= --emit-relocs --discard-none
+KBUILD_CFLAGS	+= -fPIC
+LDFLAGS_vmlinux	:= -no-pie --emit-relocs --discard-none
 extra_tools	:= relocs
-endif
 aflags_dwarf	:= -Wa,-gdwarf-2
 KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -D__ASSEMBLY__
 ifndef CONFIG_AS_IS_LLVM
@@ -88,7 +83,6 @@ endif
 
 ifdef CONFIG_EXPOLINE
   ifdef CONFIG_EXPOLINE_EXTERN
-    KBUILD_LDFLAGS_MODULE += arch/s390/lib/expoline/expoline.o
     CC_FLAGS_EXPOLINE := -mindirect-branch=thunk-extern
     CC_FLAGS_EXPOLINE += -mfunction-return=thunk-extern
   else
@@ -167,11 +161,6 @@ vdso_prepare: prepare0
 vdso-install-y			+= arch/s390/kernel/vdso64/vdso64.so.dbg
 vdso-install-$(CONFIG_COMPAT)	+= arch/s390/kernel/vdso32/vdso32.so.dbg
 
-ifdef CONFIG_EXPOLINE_EXTERN
-modules_prepare: expoline_prepare
-expoline_prepare: scripts
-	$(Q)$(MAKE) $(build)=arch/s390/lib/expoline arch/s390/lib/expoline/expoline.o
-endif
 endif
 
 # Don't use tabs in echo arguments
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 294f08a881..070c9b2e90 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -37,8 +37,7 @@ CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
 
 obj-y	:= head.o als.o startup.o physmem_info.o ipl_parm.o ipl_report.o vmem.o
 obj-y	+= string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o
-obj-y	+= version.o pgm_check_info.o ctype.o ipl_data.o
-obj-y	+= $(if $(CONFIG_PIE_BUILD),machine_kexec_reloc.o,relocs.o)
+obj-y	+= version.o pgm_check_info.o ctype.o ipl_data.o relocs.o
 obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE))	+= uv.o
 obj-$(CONFIG_RANDOMIZE_BASE)	+= kaslr.o
 obj-y	+= $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) info.o
@@ -49,9 +48,7 @@ targets	:= bzImage section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y
 targets	+= vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
 targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
 targets += vmlinux.bin.zst info.bin syms.bin vmlinux.syms $(obj-all)
-ifndef CONFIG_PIE_BUILD
 targets += relocs.S
-endif
 
 OBJECTS := $(addprefix $(obj)/,$(obj-y))
 OBJECTS_ALL := $(addprefix $(obj)/,$(obj-all))
@@ -110,13 +107,11 @@ OBJCOPYFLAGS_vmlinux.bin := -O binary --remove-section=.comment --remove-section
 $(obj)/vmlinux.bin: vmlinux FORCE
 	$(call if_changed,objcopy)
 
-ifndef CONFIG_PIE_BUILD
 CMD_RELOCS=arch/s390/tools/relocs
-quiet_cmd_relocs = RELOCS $@
+quiet_cmd_relocs = RELOCS  $@
 	cmd_relocs = $(CMD_RELOCS) $< > $@
 $(obj)/relocs.S: vmlinux FORCE
 	$(call if_changed,relocs)
-endif
 
 suffix-$(CONFIG_KERNEL_GZIP)  := .gz
 suffix-$(CONFIG_KERNEL_BZIP2) := .bz2
diff --git a/arch/s390/boot/boot.h b/arch/s390/boot/boot.h
index 567d60f78b..18027fdc92 100644
--- a/arch/s390/boot/boot.h
+++ b/arch/s390/boot/boot.h
@@ -17,7 +17,6 @@ struct machine_info {
 };
 
 struct vmlinux_info {
-	unsigned long default_lma;
 	unsigned long entry;
 	unsigned long image_size;	/* does not include .bss */
 	unsigned long bss_size;		/* uncompressed image .bss size */
@@ -25,14 +24,8 @@ struct vmlinux_info {
 	unsigned long bootdata_size;
 	unsigned long bootdata_preserved_off;
 	unsigned long bootdata_preserved_size;
-#ifdef CONFIG_PIE_BUILD
-	unsigned long dynsym_start;
-	unsigned long rela_dyn_start;
-	unsigned long rela_dyn_end;
-#else
 	unsigned long got_start;
 	unsigned long got_end;
-#endif
 	unsigned long amode31_size;
 	unsigned long init_mm_off;
 	unsigned long swapper_pg_dir_off;
@@ -74,10 +67,11 @@ void sclp_early_setup_buffer(void);
 void print_pgm_check_info(void);
 unsigned long randomize_within_range(unsigned long size, unsigned long align,
 				     unsigned long min, unsigned long max);
-void setup_vmem(unsigned long asce_limit);
+void setup_vmem(unsigned long kernel_start, unsigned long kernel_end, unsigned long asce_limit);
 void __printf(1, 2) decompressor_printk(const char *fmt, ...);
 void print_stacktrace(unsigned long sp);
 void error(char *m);
+int get_random(unsigned long limit, unsigned long *value);
 
 extern struct machine_info machine;
 
@@ -98,6 +92,10 @@ extern struct vmlinux_info _vmlinux_info;
 #define vmlinux _vmlinux_info
 
 #define __abs_lowcore_pa(x)	(((unsigned long)(x) - __abs_lowcore) % sizeof(struct lowcore))
+#define __kernel_va(x)		((void *)((unsigned long)(x) - __kaslr_offset_phys + __kaslr_offset))
+#define __kernel_pa(x)		((unsigned long)(x) - __kaslr_offset + __kaslr_offset_phys)
+#define __identity_va(x)	((void *)((unsigned long)(x) + __identity_base))
+#define __identity_pa(x)	((unsigned long)(x) - __identity_base)
 
 static inline bool intersects(unsigned long addr0, unsigned long size0,
 			      unsigned long addr1, unsigned long size1)
diff --git a/arch/s390/boot/decompressor.c b/arch/s390/boot/decompressor.c
index d762733a07..f478e8e9cb 100644
--- a/arch/s390/boot/decompressor.c
+++ b/arch/s390/boot/decompressor.c
@@ -63,24 +63,13 @@ static unsigned long free_mem_end_ptr = (unsigned long) _end + BOOT_HEAP_SIZE;
 #include "../../../../lib/decompress_unzstd.c"
 #endif
 
-#define decompress_offset ALIGN((unsigned long)_end + BOOT_HEAP_SIZE, PAGE_SIZE)
-
 unsigned long mem_safe_offset(void)
 {
-	/*
-	 * due to 4MB HEAD_SIZE for bzip2
-	 * 'decompress_offset + vmlinux.image_size' could be larger than
-	 * kernel at final position + its .bss, so take the larger of two
-	 */
-	return max(decompress_offset + vmlinux.image_size,
-		   vmlinux.default_lma + vmlinux.image_size + vmlinux.bss_size);
+	return ALIGN(free_mem_end_ptr, PAGE_SIZE);
 }
 
-void *decompress_kernel(void)
+void deploy_kernel(void *output)
 {
-	void *output = (void *)decompress_offset;
-
 	__decompress(_compressed_start, _compressed_end - _compressed_start,
 		     NULL, NULL, output, vmlinux.image_size, NULL, error);
-	return output;
 }
diff --git a/arch/s390/boot/decompressor.h b/arch/s390/boot/decompressor.h
index 92b81d2ea3..4f966f06bd 100644
--- a/arch/s390/boot/decompressor.h
+++ b/arch/s390/boot/decompressor.h
@@ -2,11 +2,9 @@
 #ifndef BOOT_COMPRESSED_DECOMPRESSOR_H
 #define BOOT_COMPRESSED_DECOMPRESSOR_H
 
-#ifdef CONFIG_KERNEL_UNCOMPRESSED
-static inline void *decompress_kernel(void) { return NULL; }
-#else
-void *decompress_kernel(void);
-#endif
+#ifndef CONFIG_KERNEL_UNCOMPRESSED
 unsigned long mem_safe_offset(void);
+void deploy_kernel(void *output);
+#endif
 
 #endif /* BOOT_COMPRESSED_DECOMPRESSOR_H */
diff --git a/arch/s390/boot/kaslr.c b/arch/s390/boot/kaslr.c
index 90602101e2..bd3bf5ef47 100644
--- a/arch/s390/boot/kaslr.c
+++ b/arch/s390/boot/kaslr.c
@@ -43,7 +43,7 @@ static int check_prng(void)
 		return PRNG_MODE_TDES;
 }
 
-static int get_random(unsigned long limit, unsigned long *value)
+int get_random(unsigned long limit, unsigned long *value)
 {
 	struct prng_parm prng = {
 		/* initial parameter block for tdes mode, copied from libica */
diff --git a/arch/s390/boot/pgm_check_info.c b/arch/s390/boot/pgm_check_info.c
index 97244cd7a2..ea96275b03 100644
--- a/arch/s390/boot/pgm_check_info.c
+++ b/arch/s390/boot/pgm_check_info.c
@@ -153,8 +153,10 @@ void print_pgm_check_info(void)
 		decompressor_printk("Kernel command line: %s\n", early_command_line);
 	decompressor_printk("Kernel fault: interruption code %04x ilc:%x\n",
 			    S390_lowcore.pgm_code, S390_lowcore.pgm_ilc >> 1);
-	if (kaslr_enabled())
+	if (kaslr_enabled()) {
 		decompressor_printk("Kernel random base: %lx\n", __kaslr_offset);
+		decompressor_printk("Kernel random base phys: %lx\n", __kaslr_offset_phys);
+	}
 	decompressor_printk("PSW : %016lx %016lx (%pS)\n",
 			    S390_lowcore.psw_save_area.mask,
 			    S390_lowcore.psw_save_area.addr,
diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c
index 9e2c9027e9..5a36d5538d 100644
--- a/arch/s390/boot/startup.c
+++ b/arch/s390/boot/startup.c
@@ -3,6 +3,7 @@
 #include <linux/elf.h>
 #include <asm/page-states.h>
 #include <asm/boot_data.h>
+#include <asm/extmem.h>
 #include <asm/sections.h>
 #include <asm/maccess.h>
 #include <asm/cpu_mf.h>
@@ -18,7 +19,7 @@
 #include "boot.h"
 #include "uv.h"
 
-unsigned long __bootdata_preserved(__kaslr_offset);
+struct vm_layout __bootdata_preserved(vm_layout);
 unsigned long __bootdata_preserved(__abs_lowcore);
 unsigned long __bootdata_preserved(__memcpy_real_area);
 pte_t *__bootdata_preserved(memcpy_real_ptep);
@@ -29,7 +30,6 @@ unsigned long __bootdata_preserved(vmemmap_size);
 unsigned long __bootdata_preserved(MODULES_VADDR);
 unsigned long __bootdata_preserved(MODULES_END);
 unsigned long __bootdata_preserved(max_mappable);
-unsigned long __bootdata(ident_map_size);
 
 u64 __bootdata_preserved(stfle_fac_list[16]);
 struct oldmem_data __bootdata_preserved(oldmem_data);
@@ -108,9 +108,19 @@ static void setup_lpp(void)
 }
 
 #ifdef CONFIG_KERNEL_UNCOMPRESSED
-unsigned long mem_safe_offset(void)
+static unsigned long mem_safe_offset(void)
 {
-	return vmlinux.default_lma + vmlinux.image_size + vmlinux.bss_size;
+	return (unsigned long)_compressed_start;
+}
+
+static void deploy_kernel(void *output)
+{
+	void *uncompressed_start = (void *)_compressed_start;
+
+	if (output == uncompressed_start)
+		return;
+	memmove(output, uncompressed_start, vmlinux.image_size);
+	memset(uncompressed_start, 0, vmlinux.image_size);
 }
 #endif
 
@@ -140,70 +150,18 @@ static void copy_bootdata(void)
 	memcpy((void *)vmlinux.bootdata_preserved_off, __boot_data_preserved_start, vmlinux.bootdata_preserved_size);
 }
 
-#ifdef CONFIG_PIE_BUILD
-static void kaslr_adjust_relocs(unsigned long min_addr, unsigned long max_addr, unsigned long offset)
-{
-	Elf64_Rela *rela_start, *rela_end, *rela;
-	int r_type, r_sym, rc;
-	Elf64_Addr loc, val;
-	Elf64_Sym *dynsym;
-
-	rela_start = (Elf64_Rela *) vmlinux.rela_dyn_start;
-	rela_end = (Elf64_Rela *) vmlinux.rela_dyn_end;
-	dynsym = (Elf64_Sym *) vmlinux.dynsym_start;
-	for (rela = rela_start; rela < rela_end; rela++) {
-		loc = rela->r_offset + offset;
-		val = rela->r_addend;
-		r_sym = ELF64_R_SYM(rela->r_info);
-		if (r_sym) {
-			if (dynsym[r_sym].st_shndx != SHN_UNDEF)
-				val += dynsym[r_sym].st_value + offset;
-		} else {
-			/*
-			 * 0 == undefined symbol table index (STN_UNDEF),
-			 * used for R_390_RELATIVE, only add KASLR offset
-			 */
-			val += offset;
-		}
-		r_type = ELF64_R_TYPE(rela->r_info);
-		rc = arch_kexec_do_relocs(r_type, (void *) loc, val, 0);
-		if (rc)
-			error("Unknown relocation type");
-	}
-}
-
-static void kaslr_adjust_got(unsigned long offset) {}
-static void rescue_relocs(void) {}
-static void free_relocs(void) {}
-#else
-static int *vmlinux_relocs_64_start;
-static int *vmlinux_relocs_64_end;
-
-static void rescue_relocs(void)
-{
-	unsigned long size = __vmlinux_relocs_64_end - __vmlinux_relocs_64_start;
-
-	vmlinux_relocs_64_start = (void *)physmem_alloc_top_down(RR_RELOC, size, 0);
-	vmlinux_relocs_64_end = (void *)vmlinux_relocs_64_start + size;
-	memmove(vmlinux_relocs_64_start, __vmlinux_relocs_64_start, size);
-}
-
-static void free_relocs(void)
-{
-	physmem_free(RR_RELOC);
-}
-
-static void kaslr_adjust_relocs(unsigned long min_addr, unsigned long max_addr, unsigned long offset)
+static void kaslr_adjust_relocs(unsigned long min_addr, unsigned long max_addr,
+				unsigned long offset, unsigned long phys_offset)
 {
 	int *reloc;
 	long loc;
 
 	/* Adjust R_390_64 relocations */
-	for (reloc = vmlinux_relocs_64_start; reloc < vmlinux_relocs_64_end; reloc++) {
-		loc = (long)*reloc + offset;
+	for (reloc = (int *)__vmlinux_relocs_64_start; reloc < (int *)__vmlinux_relocs_64_end; reloc++) {
+		loc = (long)*reloc + phys_offset;
 		if (loc < min_addr || loc > max_addr)
 			error("64-bit relocation outside of kernel!\n");
-		*(u64 *)loc += offset;
+		*(u64 *)loc += offset - __START_KERNEL;
 	}
 }
 
@@ -212,13 +170,15 @@ static void kaslr_adjust_got(unsigned long offset)
 	u64 *entry;
 
 	/*
-	 * Even without -fPIE, Clang still uses a global offset table for some
-	 * reason. Adjust the GOT entries.
+	 * Adjust GOT entries, except for ones for undefined weak symbols
+	 * that resolved to zero. This also skips the first three reserved
+	 * entries on s390x that are zero.
 	 */
-	for (entry = (u64 *)vmlinux.got_start; entry < (u64 *)vmlinux.got_end; entry++)
-		*entry += offset;
+	for (entry = (u64 *)vmlinux.got_start; entry < (u64 *)vmlinux.got_end; entry++) {
+		if (*entry)
+			*entry += offset - __START_KERNEL;
+	}
 }
-#endif
 
 /*
  * Merge information from several sources into a single ident_map_size value.
@@ -260,9 +220,26 @@ static void setup_ident_map_size(unsigned long max_physmem_end)
 #endif
 }
 
-static unsigned long setup_kernel_memory_layout(void)
+#define FIXMAP_SIZE	round_up(MEMCPY_REAL_SIZE + ABS_LOWCORE_MAP_SIZE, sizeof(struct lowcore))
+
+static unsigned long get_vmem_size(unsigned long identity_size,
+				   unsigned long vmemmap_size,
+				   unsigned long vmalloc_size,
+				   unsigned long rte_size)
+{
+	unsigned long max_mappable, vsize;
+
+	max_mappable = max(identity_size, MAX_DCSS_ADDR);
+	vsize = round_up(SZ_2G + max_mappable, rte_size) +
+		round_up(vmemmap_size, rte_size) +
+		FIXMAP_SIZE + MODULES_LEN + KASLR_LEN;
+	return size_add(vsize, vmalloc_size);
+}
+
+static unsigned long setup_kernel_memory_layout(unsigned long kernel_size)
 {
 	unsigned long vmemmap_start;
+	unsigned long kernel_start;
 	unsigned long asce_limit;
 	unsigned long rte_size;
 	unsigned long pages;
@@ -274,12 +251,19 @@ static unsigned long setup_kernel_memory_layout(void)
 	vmemmap_size = SECTION_ALIGN_UP(pages) * sizeof(struct page);
 
 	/* choose kernel address space layout: 4 or 3 levels. */
-	vsize = round_up(ident_map_size, _REGION3_SIZE) + vmemmap_size +
-		MODULES_LEN + MEMCPY_REAL_SIZE + ABS_LOWCORE_MAP_SIZE;
-	vsize = size_add(vsize, vmalloc_size);
-	if (IS_ENABLED(CONFIG_KASAN) || (vsize > _REGION2_SIZE)) {
+	BUILD_BUG_ON(!IS_ALIGNED(__START_KERNEL, THREAD_SIZE));
+	BUILD_BUG_ON(!IS_ALIGNED(__NO_KASLR_START_KERNEL, THREAD_SIZE));
+	BUILD_BUG_ON(__NO_KASLR_END_KERNEL > _REGION1_SIZE);
+	vsize = get_vmem_size(ident_map_size, vmemmap_size, vmalloc_size, _REGION3_SIZE);
+	if (IS_ENABLED(CONFIG_KASAN) || __NO_KASLR_END_KERNEL > _REGION2_SIZE ||
+	    (vsize > _REGION2_SIZE && kaslr_enabled())) {
 		asce_limit = _REGION1_SIZE;
-		rte_size = _REGION2_SIZE;
+		if (__NO_KASLR_END_KERNEL > _REGION2_SIZE) {
+			rte_size = _REGION2_SIZE;
+			vsize = get_vmem_size(ident_map_size, vmemmap_size, vmalloc_size, _REGION2_SIZE);
+		} else {
+			rte_size = _REGION3_SIZE;
+		}
 	} else {
 		asce_limit = _REGION2_SIZE;
 		rte_size = _REGION3_SIZE;
@@ -289,38 +273,67 @@ static unsigned long setup_kernel_memory_layout(void)
 	 * Forcing modules and vmalloc area under the ultravisor
 	 * secure storage limit, so that any vmalloc allocation
 	 * we do could be used to back secure guest storage.
+	 *
+	 * Assume the secure storage limit always exceeds _REGION2_SIZE,
+	 * otherwise asce_limit and rte_size would have been adjusted.
 	 */
 	vmax = adjust_to_uv_max(asce_limit);
 #ifdef CONFIG_KASAN
+	BUILD_BUG_ON(__NO_KASLR_END_KERNEL > KASAN_SHADOW_START);
 	/* force vmalloc and modules below kasan shadow */
 	vmax = min(vmax, KASAN_SHADOW_START);
 #endif
-	__memcpy_real_area = round_down(vmax - MEMCPY_REAL_SIZE, PAGE_SIZE);
-	__abs_lowcore = round_down(__memcpy_real_area - ABS_LOWCORE_MAP_SIZE,
-				   sizeof(struct lowcore));
-	MODULES_END = round_down(__abs_lowcore, _SEGMENT_SIZE);
+	vsize = min(vsize, vmax);
+	if (kaslr_enabled()) {
+		unsigned long kernel_end, kaslr_len, slots, pos;
+
+		kaslr_len = max(KASLR_LEN, vmax - vsize);
+		slots = DIV_ROUND_UP(kaslr_len - kernel_size, THREAD_SIZE);
+		if (get_random(slots, &pos))
+			pos = 0;
+		kernel_end = vmax - pos * THREAD_SIZE;
+		kernel_start = round_down(kernel_end - kernel_size, THREAD_SIZE);
+	} else if (vmax < __NO_KASLR_END_KERNEL || vsize > __NO_KASLR_END_KERNEL) {
+		kernel_start = round_down(vmax - kernel_size, THREAD_SIZE);
+		decompressor_printk("The kernel base address is forced to %lx\n", kernel_start);
+	} else {
+		kernel_start = __NO_KASLR_START_KERNEL;
+	}
+	__kaslr_offset = kernel_start;
+
+	MODULES_END = round_down(kernel_start, _SEGMENT_SIZE);
 	MODULES_VADDR = MODULES_END - MODULES_LEN;
 	VMALLOC_END = MODULES_VADDR;
 
 	/* allow vmalloc area to occupy up to about 1/2 of the rest virtual space left */
-	vsize = round_down(VMALLOC_END / 2, _SEGMENT_SIZE);
+	vsize = (VMALLOC_END - FIXMAP_SIZE) / 2;
+	vsize = round_down(vsize, _SEGMENT_SIZE);
 	vmalloc_size = min(vmalloc_size, vsize);
 	VMALLOC_START = VMALLOC_END - vmalloc_size;
 
+	__memcpy_real_area = round_down(VMALLOC_START - MEMCPY_REAL_SIZE, PAGE_SIZE);
+	__abs_lowcore = round_down(__memcpy_real_area - ABS_LOWCORE_MAP_SIZE,
+				   sizeof(struct lowcore));
+
 	/* split remaining virtual space between 1:1 mapping & vmemmap array */
-	pages = VMALLOC_START / (PAGE_SIZE + sizeof(struct page));
+	pages = __abs_lowcore / (PAGE_SIZE + sizeof(struct page));
 	pages = SECTION_ALIGN_UP(pages);
 	/* keep vmemmap_start aligned to a top level region table entry */
-	vmemmap_start = round_down(VMALLOC_START - pages * sizeof(struct page), rte_size);
-	vmemmap_start = min(vmemmap_start, 1UL << MAX_PHYSMEM_BITS);
-	/* maximum mappable address as seen by arch_get_mappable_range() */
-	max_mappable = vmemmap_start;
+	vmemmap_start = round_down(__abs_lowcore - pages * sizeof(struct page), rte_size);
 	/* make sure identity map doesn't overlay with vmemmap */
 	ident_map_size = min(ident_map_size, vmemmap_start);
 	vmemmap_size = SECTION_ALIGN_UP(ident_map_size / PAGE_SIZE) * sizeof(struct page);
-	/* make sure vmemmap doesn't overlay with vmalloc area */
-	VMALLOC_START = max(vmemmap_start + vmemmap_size, VMALLOC_START);
+	/* make sure vmemmap doesn't overlay with absolute lowcore area */
+	if (vmemmap_start + vmemmap_size > __abs_lowcore) {
+		vmemmap_size = SECTION_ALIGN_DOWN(ident_map_size / PAGE_SIZE) * sizeof(struct page);
+		ident_map_size = vmemmap_size / sizeof(struct page) * PAGE_SIZE;
+	}
 	vmemmap = (struct page *)vmemmap_start;
+	/* maximum address for which linear mapping could be created (DCSS, memory) */
+	BUILD_BUG_ON(MAX_DCSS_ADDR > (1UL << MAX_PHYSMEM_BITS));
+	max_mappable = max(ident_map_size, MAX_DCSS_ADDR);
+	max_mappable = min(max_mappable, vmemmap_start);
+	__identity_base = round_down(vmemmap_start - max_mappable, rte_size);
 
 	return asce_limit;
 }
@@ -328,9 +341,9 @@ static unsigned long setup_kernel_memory_layout(void)
 /*
  * This function clears the BSS section of the decompressed Linux kernel and NOT the decompressor's.
  */
-static void clear_bss_section(unsigned long vmlinux_lma)
+static void clear_bss_section(unsigned long kernel_start)
 {
-	memset((void *)vmlinux_lma + vmlinux.image_size, 0, vmlinux.bss_size);
+	memset((void *)kernel_start + vmlinux.image_size, 0, vmlinux.bss_size);
 }
 
 /*
@@ -347,19 +360,12 @@ static void setup_vmalloc_size(void)
 	vmalloc_size = max(size, vmalloc_size);
 }
 
-static void kaslr_adjust_vmlinux_info(unsigned long offset)
+static void kaslr_adjust_vmlinux_info(long offset)
 {
-	*(unsigned long *)(&vmlinux.entry) += offset;
 	vmlinux.bootdata_off += offset;
 	vmlinux.bootdata_preserved_off += offset;
-#ifdef CONFIG_PIE_BUILD
-	vmlinux.rela_dyn_start += offset;
-	vmlinux.rela_dyn_end += offset;
-	vmlinux.dynsym_start += offset;
-#else
 	vmlinux.got_start += offset;
 	vmlinux.got_end += offset;
-#endif
 	vmlinux.init_mm_off += offset;
 	vmlinux.swapper_pg_dir_off += offset;
 	vmlinux.invalid_pg_dir_off += offset;
@@ -372,23 +378,36 @@ static void kaslr_adjust_vmlinux_info(unsigned long offset)
 #endif
 }
 
+static void fixup_vmlinux_info(void)
+{
+	vmlinux.entry -= __START_KERNEL;
+	kaslr_adjust_vmlinux_info(-__START_KERNEL);
+}
+
 void startup_kernel(void)
 {
-	unsigned long max_physmem_end;
-	unsigned long vmlinux_lma = 0;
+	unsigned long kernel_size = vmlinux.image_size + vmlinux.bss_size;
+	unsigned long nokaslr_offset_phys, kaslr_large_page_offset;
 	unsigned long amode31_lma = 0;
+	unsigned long max_physmem_end;
 	unsigned long asce_limit;
 	unsigned long safe_addr;
-	void *img;
 	psw_t psw;
 
+	fixup_vmlinux_info();
 	setup_lpp();
-	safe_addr = mem_safe_offset();
 
 	/*
-	 * Reserve decompressor memory together with decompression heap, buffer and
-	 * memory which might be occupied by uncompressed kernel at default 1Mb
-	 * position (if KASLR is off or failed).
+	 * Non-randomized kernel physical start address must be _SEGMENT_SIZE
+	 * aligned (see blow).
+	 */
+	nokaslr_offset_phys = ALIGN(mem_safe_offset(), _SEGMENT_SIZE);
+	safe_addr = PAGE_ALIGN(nokaslr_offset_phys + kernel_size);
+
+	/*
+	 * Reserve decompressor memory together with decompression heap,
+	 * buffer and memory which might be occupied by uncompressed kernel
+	 * (if KASLR is off or failed).
 	 */
 	physmem_reserve(RR_DECOMPRESSOR, 0, safe_addr);
 	if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && parmarea.initrd_size)
@@ -408,40 +427,54 @@ void startup_kernel(void)
 	max_physmem_end = detect_max_physmem_end();
 	setup_ident_map_size(max_physmem_end);
 	setup_vmalloc_size();
-	asce_limit = setup_kernel_memory_layout();
+	asce_limit = setup_kernel_memory_layout(kernel_size);
 	/* got final ident_map_size, physmem allocations could be performed now */
 	physmem_set_usable_limit(ident_map_size);
 	detect_physmem_online_ranges(max_physmem_end);
 	save_ipl_cert_comp_list();
 	rescue_initrd(safe_addr, ident_map_size);
-	rescue_relocs();
 
+	/*
+	 * __kaslr_offset_phys must be _SEGMENT_SIZE aligned, so the lower
+	 * 20 bits (the offset within a large page) are zero. Copy the last
+	 * 20 bits of __kaslr_offset, which is THREAD_SIZE aligned, to
+	 * __kaslr_offset_phys.
+	 *
+	 * With this the last 20 bits of __kaslr_offset_phys and __kaslr_offset
+	 * are identical, which is required to allow for large mappings of the
+	 * kernel image.
+	 */
+	kaslr_large_page_offset = __kaslr_offset & ~_SEGMENT_MASK;
 	if (kaslr_enabled()) {
-		vmlinux_lma = randomize_within_range(vmlinux.image_size + vmlinux.bss_size,
-						     THREAD_SIZE, vmlinux.default_lma,
-						     ident_map_size);
-		if (vmlinux_lma) {
-			__kaslr_offset = vmlinux_lma - vmlinux.default_lma;
-			kaslr_adjust_vmlinux_info(__kaslr_offset);
-		}
-	}
-	vmlinux_lma = vmlinux_lma ?: vmlinux.default_lma;
-	physmem_reserve(RR_VMLINUX, vmlinux_lma, vmlinux.image_size + vmlinux.bss_size);
-
-	if (!IS_ENABLED(CONFIG_KERNEL_UNCOMPRESSED)) {
-		img = decompress_kernel();
-		memmove((void *)vmlinux_lma, img, vmlinux.image_size);
-	} else if (__kaslr_offset) {
-		img = (void *)vmlinux.default_lma;
-		memmove((void *)vmlinux_lma, img, vmlinux.image_size);
-		memset(img, 0, vmlinux.image_size);
+		unsigned long end = ident_map_size - kaslr_large_page_offset;
+
+		__kaslr_offset_phys = randomize_within_range(kernel_size, _SEGMENT_SIZE, 0, end);
 	}
+	if (!__kaslr_offset_phys)
+		__kaslr_offset_phys = nokaslr_offset_phys;
+	__kaslr_offset_phys |= kaslr_large_page_offset;
+	kaslr_adjust_vmlinux_info(__kaslr_offset_phys);
+	physmem_reserve(RR_VMLINUX, __kaslr_offset_phys, kernel_size);
+	deploy_kernel((void *)__kaslr_offset_phys);
 
 	/* vmlinux decompression is done, shrink reserved low memory */
 	physmem_reserve(RR_DECOMPRESSOR, 0, (unsigned long)_decompressor_end);
+
+	/*
+	 * In case KASLR is enabled the randomized location of .amode31
+	 * section might overlap with .vmlinux.relocs section. To avoid that
+	 * the below randomize_within_range() could have been called with
+	 * __vmlinux_relocs_64_end as the lower range address. However,
+	 * .amode31 section is written to by the decompressed kernel - at
+	 * that time the contents of .vmlinux.relocs is not needed anymore.
+	 * Conversly, .vmlinux.relocs is read only by the decompressor, even
+	 * before the kernel started. Therefore, in case the two sections
+	 * overlap there is no risk of corrupting any data.
+	 */
 	if (kaslr_enabled())
 		amode31_lma = randomize_within_range(vmlinux.amode31_size, PAGE_SIZE, 0, SZ_2G);
-	amode31_lma = amode31_lma ?: vmlinux.default_lma - vmlinux.amode31_size;
+	if (!amode31_lma)
+		amode31_lma = __kaslr_offset_phys - vmlinux.amode31_size;
 	physmem_reserve(RR_AMODE31, amode31_lma, vmlinux.amode31_size);
 
 	/*
@@ -457,23 +490,23 @@ void startup_kernel(void)
 	 * - copy_bootdata() must follow setup_vmem() to propagate changes
 	 *   to bootdata made by setup_vmem()
 	 */
-	clear_bss_section(vmlinux_lma);
-	kaslr_adjust_relocs(vmlinux_lma, vmlinux_lma + vmlinux.image_size, __kaslr_offset);
+	clear_bss_section(__kaslr_offset_phys);
+	kaslr_adjust_relocs(__kaslr_offset_phys, __kaslr_offset_phys + vmlinux.image_size,
+			    __kaslr_offset, __kaslr_offset_phys);
 	kaslr_adjust_got(__kaslr_offset);
-	free_relocs();
-	setup_vmem(asce_limit);
+	setup_vmem(__kaslr_offset, __kaslr_offset + kernel_size, asce_limit);
 	copy_bootdata();
 
 	/*
 	 * Save KASLR offset for early dumps, before vmcore_info is set.
 	 * Mark as uneven to distinguish from real vmcore_info pointer.
 	 */
-	S390_lowcore.vmcore_info = __kaslr_offset ? __kaslr_offset | 0x1UL : 0;
+	S390_lowcore.vmcore_info = __kaslr_offset_phys ? __kaslr_offset_phys | 0x1UL : 0;
 
 	/*
 	 * Jump to the decompressed kernel entry point and switch DAT mode on.
 	 */
-	psw.addr = vmlinux.entry;
+	psw.addr = __kaslr_offset + vmlinux.entry;
 	psw.mask = PSW_KERNEL_BITS;
 	__load_psw(psw);
 }
diff --git a/arch/s390/boot/vmem.c b/arch/s390/boot/vmem.c
index 09b10bb6e4..40cfce2687 100644
--- a/arch/s390/boot/vmem.c
+++ b/arch/s390/boot/vmem.c
@@ -27,6 +27,8 @@ enum populate_mode {
 	POPULATE_NONE,
 	POPULATE_DIRECT,
 	POPULATE_ABS_LOWCORE,
+	POPULATE_IDENTITY,
+	POPULATE_KERNEL,
 #ifdef CONFIG_KASAN
 	POPULATE_KASAN_MAP_SHADOW,
 	POPULATE_KASAN_ZERO_SHADOW,
@@ -54,7 +56,7 @@ static inline void kasan_populate(unsigned long start, unsigned long end, enum p
 	pgtable_populate(start, end, mode);
 }
 
-static void kasan_populate_shadow(void)
+static void kasan_populate_shadow(unsigned long kernel_start, unsigned long kernel_end)
 {
 	pmd_t pmd_z = __pmd(__pa(kasan_early_shadow_pte) | _SEGMENT_ENTRY);
 	pud_t pud_z = __pud(__pa(kasan_early_shadow_pmd) | _REGION3_ENTRY);
@@ -76,44 +78,20 @@ static void kasan_populate_shadow(void)
 	__arch_set_page_dat(kasan_early_shadow_pmd, 1UL << CRST_ALLOC_ORDER);
 	__arch_set_page_dat(kasan_early_shadow_pte, 1);
 
-	/*
-	 * Current memory layout:
-	 * +- 0 -------------+	       +- shadow start -+
-	 * |1:1 ident mapping|	      /|1/8 of ident map|
-	 * |		     |	     / |		|
-	 * +-end of ident map+	    /  +----------------+
-	 * | ... gap ...     |	   /   |    kasan	|
-	 * |		     |	  /    |  zero page	|
-	 * +- vmalloc area  -+	 /     |   mapping	|
-	 * | vmalloc_size    |	/      | (untracked)	|
-	 * +- modules vaddr -+ /       +----------------+
-	 * | 2Gb	     |/        |    unmapped	| allocated per module
-	 * +- shadow start  -+	       +----------------+
-	 * | 1/8 addr space  |	       | zero pg mapping| (untracked)
-	 * +- shadow end ----+---------+- shadow end ---+
-	 *
-	 * Current memory layout (KASAN_VMALLOC):
-	 * +- 0 -------------+	       +- shadow start -+
-	 * |1:1 ident mapping|	      /|1/8 of ident map|
-	 * |		     |	     / |		|
-	 * +-end of ident map+	    /  +----------------+
-	 * | ... gap ...     |	   /   | kasan zero page| (untracked)
-	 * |		     |	  /    | mapping	|
-	 * +- vmalloc area  -+	 /     +----------------+
-	 * | vmalloc_size    |	/      |shallow populate|
-	 * +- modules vaddr -+ /       +----------------+
-	 * | 2Gb	     |/        |shallow populate|
-	 * +- shadow start  -+	       +----------------+
-	 * | 1/8 addr space  |	       | zero pg mapping| (untracked)
-	 * +- shadow end ----+---------+- shadow end ---+
-	 */
-
 	for_each_physmem_usable_range(i, &start, &end) {
-		kasan_populate(start, end, POPULATE_KASAN_MAP_SHADOW);
-		if (memgap_start && physmem_info.info_source == MEM_DETECT_DIAG260)
-			kasan_populate(memgap_start, start, POPULATE_KASAN_ZERO_SHADOW);
+		kasan_populate((unsigned long)__identity_va(start),
+			       (unsigned long)__identity_va(end),
+			       POPULATE_KASAN_MAP_SHADOW);
+		if (memgap_start && physmem_info.info_source == MEM_DETECT_DIAG260) {
+			kasan_populate((unsigned long)__identity_va(memgap_start),
+				       (unsigned long)__identity_va(start),
+				       POPULATE_KASAN_ZERO_SHADOW);
+		}
 		memgap_start = end;
 	}
+	kasan_populate(kernel_start, kernel_end, POPULATE_KASAN_MAP_SHADOW);
+	kasan_populate(0, (unsigned long)__identity_va(0), POPULATE_KASAN_ZERO_SHADOW);
+	kasan_populate(AMODE31_START, AMODE31_END, POPULATE_KASAN_ZERO_SHADOW);
 	if (IS_ENABLED(CONFIG_KASAN_VMALLOC)) {
 		untracked_end = VMALLOC_START;
 		/* shallowly populate kasan shadow for vmalloc and modules */
@@ -122,8 +100,9 @@ static void kasan_populate_shadow(void)
 		untracked_end = MODULES_VADDR;
 	}
 	/* populate kasan shadow for untracked memory */
-	kasan_populate(ident_map_size, untracked_end, POPULATE_KASAN_ZERO_SHADOW);
-	kasan_populate(MODULES_END, _REGION1_SIZE, POPULATE_KASAN_ZERO_SHADOW);
+	kasan_populate((unsigned long)__identity_va(ident_map_size), untracked_end,
+		       POPULATE_KASAN_ZERO_SHADOW);
+	kasan_populate(kernel_end, _REGION1_SIZE, POPULATE_KASAN_ZERO_SHADOW);
 }
 
 static bool kasan_pgd_populate_zero_shadow(pgd_t *pgd, unsigned long addr,
@@ -180,7 +159,9 @@ static bool kasan_pte_populate_zero_shadow(pte_t *pte, enum populate_mode mode)
 }
 #else
 
-static inline void kasan_populate_shadow(void) {}
+static inline void kasan_populate_shadow(unsigned long kernel_start, unsigned long kernel_end)
+{
+}
 
 static inline bool kasan_pgd_populate_zero_shadow(pgd_t *pgd, unsigned long addr,
 						  unsigned long end, enum populate_mode mode)
@@ -263,6 +244,10 @@ static unsigned long _pa(unsigned long addr, unsigned long size, enum populate_m
 		return addr;
 	case POPULATE_ABS_LOWCORE:
 		return __abs_lowcore_pa(addr);
+	case POPULATE_KERNEL:
+		return __kernel_pa(addr);
+	case POPULATE_IDENTITY:
+		return __identity_pa(addr);
 #ifdef CONFIG_KASAN
 	case POPULATE_KASAN_MAP_SHADOW:
 		addr = physmem_alloc_top_down(RR_VMEM, size, size);
@@ -274,16 +259,29 @@ static unsigned long _pa(unsigned long addr, unsigned long size, enum populate_m
 	}
 }
 
-static bool can_large_pud(pud_t *pu_dir, unsigned long addr, unsigned long end)
+static bool large_allowed(enum populate_mode mode)
+{
+	return (mode == POPULATE_DIRECT) || (mode == POPULATE_IDENTITY) || (mode == POPULATE_KERNEL);
+}
+
+static bool can_large_pud(pud_t *pu_dir, unsigned long addr, unsigned long end,
+			  enum populate_mode mode)
 {
-	return machine.has_edat2 &&
-	       IS_ALIGNED(addr, PUD_SIZE) && (end - addr) >= PUD_SIZE;
+	unsigned long size = end - addr;
+
+	return machine.has_edat2 && large_allowed(mode) &&
+	       IS_ALIGNED(addr, PUD_SIZE) && (size >= PUD_SIZE) &&
+	       IS_ALIGNED(_pa(addr, size, mode), PUD_SIZE);
 }
 
-static bool can_large_pmd(pmd_t *pm_dir, unsigned long addr, unsigned long end)
+static bool can_large_pmd(pmd_t *pm_dir, unsigned long addr, unsigned long end,
+			  enum populate_mode mode)
 {
-	return machine.has_edat1 &&
-	       IS_ALIGNED(addr, PMD_SIZE) && (end - addr) >= PMD_SIZE;
+	unsigned long size = end - addr;
+
+	return machine.has_edat1 && large_allowed(mode) &&
+	       IS_ALIGNED(addr, PMD_SIZE) && (size >= PMD_SIZE) &&
+	       IS_ALIGNED(_pa(addr, size, mode), PMD_SIZE);
 }
 
 static void pgtable_pte_populate(pmd_t *pmd, unsigned long addr, unsigned long end,
@@ -322,7 +320,7 @@ static void pgtable_pmd_populate(pud_t *pud, unsigned long addr, unsigned long e
 		if (pmd_none(*pmd)) {
 			if (kasan_pmd_populate_zero_shadow(pmd, addr, next, mode))
 				continue;
-			if (can_large_pmd(pmd, addr, next)) {
+			if (can_large_pmd(pmd, addr, next, mode)) {
 				entry = __pmd(_pa(addr, _SEGMENT_SIZE, mode));
 				entry = set_pmd_bit(entry, SEGMENT_KERNEL);
 				if (!machine.has_nx)
@@ -355,7 +353,7 @@ static void pgtable_pud_populate(p4d_t *p4d, unsigned long addr, unsigned long e
 		if (pud_none(*pud)) {
 			if (kasan_pud_populate_zero_shadow(pud, addr, next, mode))
 				continue;
-			if (can_large_pud(pud, addr, next)) {
+			if (can_large_pud(pud, addr, next, mode)) {
 				entry = __pud(_pa(addr, _REGION3_SIZE, mode));
 				entry = set_pud_bit(entry, REGION3_KERNEL);
 				if (!machine.has_nx)
@@ -418,11 +416,12 @@ static void pgtable_populate(unsigned long addr, unsigned long end, enum populat
 	}
 }
 
-void setup_vmem(unsigned long asce_limit)
+void setup_vmem(unsigned long kernel_start, unsigned long kernel_end, unsigned long asce_limit)
 {
 	unsigned long start, end;
 	unsigned long asce_type;
 	unsigned long asce_bits;
+	pgd_t *init_mm_pgd;
 	int i;
 
 	/*
@@ -433,6 +432,15 @@ void setup_vmem(unsigned long asce_limit)
 	for_each_physmem_online_range(i, &start, &end)
 		__arch_set_page_nodat((void *)start, (end - start) >> PAGE_SHIFT);
 
+	/*
+	 * init_mm->pgd contains virtual address of swapper_pg_dir.
+	 * It is unusable at this stage since DAT is yet off. Swap
+	 * it for physical address of swapper_pg_dir and restore
+	 * the virtual address after all page tables are created.
+	 */
+	init_mm_pgd = init_mm.pgd;
+	init_mm.pgd = (pgd_t *)swapper_pg_dir;
+
 	if (asce_limit == _REGION1_SIZE) {
 		asce_type = _REGION2_ENTRY_EMPTY;
 		asce_bits = _ASCE_TYPE_REGION2 | _ASCE_TABLE_LENGTH;
@@ -453,15 +461,20 @@ void setup_vmem(unsigned long asce_limit)
 	 * the lowcore and create the identity mapping only afterwards.
 	 */
 	pgtable_populate(0, sizeof(struct lowcore), POPULATE_DIRECT);
-	for_each_physmem_usable_range(i, &start, &end)
-		pgtable_populate(start, end, POPULATE_DIRECT);
+	for_each_physmem_usable_range(i, &start, &end) {
+		pgtable_populate((unsigned long)__identity_va(start),
+				 (unsigned long)__identity_va(end),
+				 POPULATE_IDENTITY);
+	}
+	pgtable_populate(kernel_start, kernel_end, POPULATE_KERNEL);
+	pgtable_populate(AMODE31_START, AMODE31_END, POPULATE_DIRECT);
 	pgtable_populate(__abs_lowcore, __abs_lowcore + sizeof(struct lowcore),
 			 POPULATE_ABS_LOWCORE);
 	pgtable_populate(__memcpy_real_area, __memcpy_real_area + PAGE_SIZE,
 			 POPULATE_NONE);
-	memcpy_real_ptep = __virt_to_kpte(__memcpy_real_area);
+	memcpy_real_ptep = __identity_va(__virt_to_kpte(__memcpy_real_area));
 
-	kasan_populate_shadow();
+	kasan_populate_shadow(kernel_start, kernel_end);
 
 	S390_lowcore.kernel_asce.val = swapper_pg_dir | asce_bits;
 	S390_lowcore.user_asce = s390_invalid_asce;
@@ -471,4 +484,5 @@ void setup_vmem(unsigned long asce_limit)
 	local_ctl_load(13, &S390_lowcore.kernel_asce);
 
 	init_mm.context.asce = S390_lowcore.kernel_asce.val;
+	init_mm.pgd = init_mm_pgd;
 }
diff --git a/arch/s390/boot/vmlinux.lds.S b/arch/s390/boot/vmlinux.lds.S
index 3d7ea585ab..a750711d44 100644
--- a/arch/s390/boot/vmlinux.lds.S
+++ b/arch/s390/boot/vmlinux.lds.S
@@ -99,8 +99,17 @@ SECTIONS
 
 	_decompressor_end = .;
 
+	. = ALIGN(4);
+	.vmlinux.relocs : {
+		__vmlinux_relocs_64_start = .;
+		*(.vmlinux.relocs_64)
+		__vmlinux_relocs_64_end = .;
+	}
+
 #ifdef CONFIG_KERNEL_UNCOMPRESSED
-	. = 0x100000;
+	. = ALIGN(PAGE_SIZE);
+	. += AMODE31_SIZE;		/* .amode31 section */
+	. = ALIGN(1 << 20);		/* _SEGMENT_SIZE */
 #else
 	. = ALIGN(8);
 #endif
@@ -110,24 +119,6 @@ SECTIONS
 		_compressed_end = .;
 	}
 
-#ifndef CONFIG_PIE_BUILD
-	/*
-	 * When the kernel is built with CONFIG_KERNEL_UNCOMPRESSED, the entire
-	 * uncompressed vmlinux.bin is positioned in the bzImage decompressor
-	 * image at the default kernel LMA of 0x100000, enabling it to be
-	 * executed in-place. However, the size of .vmlinux.relocs could be
-	 * large enough to cause an overlap with the uncompressed kernel at the
-	 * address 0x100000. To address this issue, .vmlinux.relocs is
-	 * positioned after the .rodata.compressed.
-	 */
-	. = ALIGN(4);
-	.vmlinux.relocs : {
-		__vmlinux_relocs_64_start = .;
-		*(.vmlinux.relocs_64)
-		__vmlinux_relocs_64_end = .;
-	}
-#endif
-
 #define SB_TRAILER_SIZE 32
 	/* Trailer needed for Secure Boot */
 	. += SB_TRAILER_SIZE; /* make sure .sb.trailer does not overwrite the previous section */
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index f1fb01cd5a..f3602414a9 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -43,7 +43,6 @@ CONFIG_PROFILING=y
 CONFIG_KEXEC=y
 CONFIG_KEXEC_FILE=y
 CONFIG_KEXEC_SIG=y
-CONFIG_CRASH_DUMP=y
 CONFIG_LIVEPATCH=y
 CONFIG_MARCH_Z13=y
 CONFIG_NR_CPUS=512
@@ -51,6 +50,7 @@ CONFIG_NUMA=y
 CONFIG_HZ_100=y
 CONFIG_CERT_STORE=y
 CONFIG_EXPOLINE=y
+# CONFIG_EXPOLINE_EXTERN is not set
 CONFIG_EXPOLINE_AUTO=y
 CONFIG_CHSC_SCH=y
 CONFIG_VFIO_CCW=m
@@ -76,6 +76,7 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_MODULE_UNLOAD_TAINT_TRACKING=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_MODULE_SIG_SHA256=y
 CONFIG_BLK_DEV_THROTTLING=y
 CONFIG_BLK_WBT=y
 CONFIG_BLK_CGROUP_IOLATENCY=y
@@ -100,7 +101,6 @@ CONFIG_MEMORY_HOTPLUG=y
 CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
-CONFIG_CMA_DEBUG=y
 CONFIG_CMA_DEBUGFS=y
 CONFIG_CMA_SYSFS=y
 CONFIG_CMA_AREAS=7
@@ -119,6 +119,7 @@ CONFIG_UNIX_DIAG=m
 CONFIG_XFRM_USER=m
 CONFIG_NET_KEY=m
 CONFIG_SMC_DIAG=m
+CONFIG_SMC_LO=y
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_ADVANCED_ROUTER=y
@@ -133,7 +134,6 @@ CONFIG_IP_MROUTE=y
 CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
 CONFIG_IP_PIMSM_V1=y
 CONFIG_IP_PIMSM_V2=y
-CONFIG_SYN_COOKIES=y
 CONFIG_NET_IPVTI=m
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
@@ -167,6 +167,7 @@ CONFIG_BRIDGE_NETFILTER=m
 CONFIG_NETFILTER_NETLINK_HOOK=m
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
+CONFIG_NF_CONNTRACK_ZONES=y
 CONFIG_NF_CONNTRACK_PROCFS=y
 CONFIG_NF_CONNTRACK_EVENTS=y
 CONFIG_NF_CONNTRACK_TIMEOUT=y
@@ -183,17 +184,39 @@ CONFIG_NF_CONNTRACK_SIP=m
 CONFIG_NF_CONNTRACK_TFTP=m
 CONFIG_NF_CT_NETLINK=m
 CONFIG_NF_CT_NETLINK_TIMEOUT=m
+CONFIG_NF_CT_NETLINK_HELPER=m
+CONFIG_NETFILTER_NETLINK_GLUE_CT=y
 CONFIG_NF_TABLES=m
 CONFIG_NF_TABLES_INET=y
+CONFIG_NF_TABLES_NETDEV=y
+CONFIG_NFT_NUMGEN=m
 CONFIG_NFT_CT=m
+CONFIG_NFT_FLOW_OFFLOAD=m
+CONFIG_NFT_CONNLIMIT=m
 CONFIG_NFT_LOG=m
 CONFIG_NFT_LIMIT=m
+CONFIG_NFT_MASQ=m
+CONFIG_NFT_REDIR=m
 CONFIG_NFT_NAT=m
+CONFIG_NFT_TUNNEL=m
+CONFIG_NFT_QUEUE=m
+CONFIG_NFT_QUOTA=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
 CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
-CONFIG_NETFILTER_XTABLES_COMPAT=y
+CONFIG_NFT_XFRM=m
+CONFIG_NFT_SOCKET=m
+CONFIG_NFT_OSF=m
+CONFIG_NFT_TPROXY=m
+CONFIG_NFT_SYNPROXY=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
+CONFIG_NFT_REJECT_NETDEV=m
+CONFIG_NF_FLOW_TABLE_INET=m
+CONFIG_NF_FLOW_TABLE=m
+CONFIG_NF_FLOW_TABLE_PROCFS=y
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_AUDIT=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
@@ -206,8 +229,10 @@ CONFIG_NETFILTER_XT_TARGET_HMARK=m
 CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
 CONFIG_NETFILTER_XT_TARGET_LOG=m
 CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NETFILTER_XT_TARGET_NETMAP=m
 CONFIG_NETFILTER_XT_TARGET_NFLOG=m
 CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
+CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
 CONFIG_NETFILTER_XT_TARGET_TEE=m
 CONFIG_NETFILTER_XT_TARGET_TPROXY=m
 CONFIG_NETFILTER_XT_TARGET_TRACE=m
@@ -216,6 +241,7 @@ CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
 CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
 CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
 CONFIG_NETFILTER_XT_MATCH_BPF=m
+CONFIG_NETFILTER_XT_MATCH_CGROUP=m
 CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
 CONFIG_NETFILTER_XT_MATCH_COMMENT=m
 CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
@@ -230,6 +256,7 @@ CONFIG_NETFILTER_XT_MATCH_DSCP=m
 CONFIG_NETFILTER_XT_MATCH_ESP=m
 CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
 CONFIG_NETFILTER_XT_MATCH_HELPER=m
+CONFIG_NETFILTER_XT_MATCH_IPCOMP=m
 CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
 CONFIG_NETFILTER_XT_MATCH_IPVS=m
 CONFIG_NETFILTER_XT_MATCH_LENGTH=m
@@ -247,6 +274,7 @@ CONFIG_NETFILTER_XT_MATCH_QUOTA=m
 CONFIG_NETFILTER_XT_MATCH_RATEEST=m
 CONFIG_NETFILTER_XT_MATCH_REALM=m
 CONFIG_NETFILTER_XT_MATCH_RECENT=m
+CONFIG_NETFILTER_XT_MATCH_SOCKET=m
 CONFIG_NETFILTER_XT_MATCH_STATE=m
 CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
 CONFIG_NETFILTER_XT_MATCH_STRING=m
@@ -302,7 +330,6 @@ CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
 CONFIG_IP_NF_RAW=m
 CONFIG_IP_NF_SECURITY=m
-CONFIG_IP_NF_ARPTABLES=m
 CONFIG_IP_NF_ARPFILTER=m
 CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NFT_FIB_IPV6=m
@@ -373,7 +400,6 @@ CONFIG_NET_ACT_POLICE=m
 CONFIG_NET_ACT_GACT=m
 CONFIG_GACT_PROB=y
 CONFIG_NET_ACT_MIRRED=m
-CONFIG_NET_ACT_IPT=m
 CONFIG_NET_ACT_NAT=m
 CONFIG_NET_ACT_PEDIT=m
 CONFIG_NET_ACT_SIMP=m
@@ -462,6 +488,7 @@ CONFIG_DM_VERITY=m
 CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG=y
 CONFIG_DM_SWITCH=m
 CONFIG_DM_INTEGRITY=m
+CONFIG_DM_VDO=m
 CONFIG_NETDEVICES=y
 CONFIG_BONDING=m
 CONFIG_DUMMY=m
@@ -574,18 +601,16 @@ CONFIG_WATCHDOG=y
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_SOFT_WATCHDOG=m
 CONFIG_DIAG288_WATCHDOG=m
-# CONFIG_DRM_DEBUG_MODESET_LOCK is not set
+CONFIG_DRM=m
+CONFIG_DRM_VIRTIO_GPU=m
 CONFIG_FB=y
 # CONFIG_FB_DEVICE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
 # CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_INFINIBAND=m
 CONFIG_INFINIBAND_USER_ACCESS=m
 CONFIG_MLX4_INFINIBAND=m
 CONFIG_MLX5_INFINIBAND=m
-CONFIG_SYNC_FILE=y
 CONFIG_VFIO=m
 CONFIG_VFIO_PCI=m
 CONFIG_MLX5_VFIO_PCI=m
@@ -645,7 +670,6 @@ CONFIG_MSDOS_FS=m
 CONFIG_VFAT_FS=m
 CONFIG_EXFAT_FS=m
 CONFIG_NTFS_FS=m
-CONFIG_NTFS_RW=y
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
@@ -663,6 +687,7 @@ CONFIG_SQUASHFS_XZ=y
 CONFIG_SQUASHFS_ZSTD=y
 CONFIG_ROMFS_FS=m
 CONFIG_NFS_FS=m
+CONFIG_NFS_V2=m
 CONFIG_NFS_V3_ACL=y
 CONFIG_NFS_V4=m
 CONFIG_NFS_SWAP=y
@@ -760,7 +785,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
 CONFIG_CRYPTO_USER_API_RNG=m
 CONFIG_CRYPTO_USER_API_AEAD=m
-CONFIG_CRYPTO_STATS=y
 CONFIG_CRYPTO_CRC32_S390=y
 CONFIG_CRYPTO_SHA512_S390=m
 CONFIG_CRYPTO_SHA1_S390=m
@@ -880,6 +904,5 @@ CONFIG_RBTREE_TEST=y
 CONFIG_INTERVAL_TREE_TEST=m
 CONFIG_PERCPU_TEST=m
 CONFIG_ATOMIC64_SELFTEST=y
-CONFIG_STRING_SELFTEST=y
 CONFIG_TEST_BITOPS=m
 CONFIG_TEST_BPF=m
diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
index d33f814f78..d0d8925fdf 100644
--- a/arch/s390/configs/defconfig
+++ b/arch/s390/configs/defconfig
@@ -41,7 +41,6 @@ CONFIG_PROFILING=y
 CONFIG_KEXEC=y
 CONFIG_KEXEC_FILE=y
 CONFIG_KEXEC_SIG=y
-CONFIG_CRASH_DUMP=y
 CONFIG_LIVEPATCH=y
 CONFIG_MARCH_Z13=y
 CONFIG_NR_CPUS=512
@@ -49,6 +48,7 @@ CONFIG_NUMA=y
 CONFIG_HZ_100=y
 CONFIG_CERT_STORE=y
 CONFIG_EXPOLINE=y
+# CONFIG_EXPOLINE_EXTERN is not set
 CONFIG_EXPOLINE_AUTO=y
 CONFIG_CHSC_SCH=y
 CONFIG_VFIO_CCW=m
@@ -71,6 +71,7 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_MODULE_UNLOAD_TAINT_TRACKING=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_MODULE_SIG_SHA256=y
 CONFIG_BLK_DEV_THROTTLING=y
 CONFIG_BLK_WBT=y
 CONFIG_BLK_CGROUP_IOLATENCY=y
@@ -110,6 +111,7 @@ CONFIG_UNIX_DIAG=m
 CONFIG_XFRM_USER=m
 CONFIG_NET_KEY=m
 CONFIG_SMC_DIAG=m
+CONFIG_SMC_LO=y
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_ADVANCED_ROUTER=y
@@ -124,7 +126,6 @@ CONFIG_IP_MROUTE=y
 CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
 CONFIG_IP_PIMSM_V1=y
 CONFIG_IP_PIMSM_V2=y
-CONFIG_SYN_COOKIES=y
 CONFIG_NET_IPVTI=m
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
@@ -158,6 +159,7 @@ CONFIG_BRIDGE_NETFILTER=m
 CONFIG_NETFILTER_NETLINK_HOOK=m
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
+CONFIG_NF_CONNTRACK_ZONES=y
 CONFIG_NF_CONNTRACK_PROCFS=y
 CONFIG_NF_CONNTRACK_EVENTS=y
 CONFIG_NF_CONNTRACK_TIMEOUT=y
@@ -174,17 +176,39 @@ CONFIG_NF_CONNTRACK_SIP=m
 CONFIG_NF_CONNTRACK_TFTP=m
 CONFIG_NF_CT_NETLINK=m
 CONFIG_NF_CT_NETLINK_TIMEOUT=m
+CONFIG_NF_CT_NETLINK_HELPER=m
+CONFIG_NETFILTER_NETLINK_GLUE_CT=y
 CONFIG_NF_TABLES=m
 CONFIG_NF_TABLES_INET=y
+CONFIG_NF_TABLES_NETDEV=y
+CONFIG_NFT_NUMGEN=m
 CONFIG_NFT_CT=m
+CONFIG_NFT_FLOW_OFFLOAD=m
+CONFIG_NFT_CONNLIMIT=m
 CONFIG_NFT_LOG=m
 CONFIG_NFT_LIMIT=m
+CONFIG_NFT_MASQ=m
+CONFIG_NFT_REDIR=m
 CONFIG_NFT_NAT=m
+CONFIG_NFT_TUNNEL=m
+CONFIG_NFT_QUEUE=m
+CONFIG_NFT_QUOTA=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
 CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
-CONFIG_NETFILTER_XTABLES_COMPAT=y
+CONFIG_NFT_XFRM=m
+CONFIG_NFT_SOCKET=m
+CONFIG_NFT_OSF=m
+CONFIG_NFT_TPROXY=m
+CONFIG_NFT_SYNPROXY=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
+CONFIG_NFT_REJECT_NETDEV=m
+CONFIG_NF_FLOW_TABLE_INET=m
+CONFIG_NF_FLOW_TABLE=m
+CONFIG_NF_FLOW_TABLE_PROCFS=y
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_AUDIT=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
@@ -197,8 +221,10 @@ CONFIG_NETFILTER_XT_TARGET_HMARK=m
 CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
 CONFIG_NETFILTER_XT_TARGET_LOG=m
 CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NETFILTER_XT_TARGET_NETMAP=m
 CONFIG_NETFILTER_XT_TARGET_NFLOG=m
 CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
+CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
 CONFIG_NETFILTER_XT_TARGET_TEE=m
 CONFIG_NETFILTER_XT_TARGET_TPROXY=m
 CONFIG_NETFILTER_XT_TARGET_TRACE=m
@@ -207,6 +233,7 @@ CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
 CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
 CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
 CONFIG_NETFILTER_XT_MATCH_BPF=m
+CONFIG_NETFILTER_XT_MATCH_CGROUP=m
 CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
 CONFIG_NETFILTER_XT_MATCH_COMMENT=m
 CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
@@ -221,6 +248,7 @@ CONFIG_NETFILTER_XT_MATCH_DSCP=m
 CONFIG_NETFILTER_XT_MATCH_ESP=m
 CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
 CONFIG_NETFILTER_XT_MATCH_HELPER=m
+CONFIG_NETFILTER_XT_MATCH_IPCOMP=m
 CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
 CONFIG_NETFILTER_XT_MATCH_IPVS=m
 CONFIG_NETFILTER_XT_MATCH_LENGTH=m
@@ -238,6 +266,7 @@ CONFIG_NETFILTER_XT_MATCH_QUOTA=m
 CONFIG_NETFILTER_XT_MATCH_RATEEST=m
 CONFIG_NETFILTER_XT_MATCH_REALM=m
 CONFIG_NETFILTER_XT_MATCH_RECENT=m
+CONFIG_NETFILTER_XT_MATCH_SOCKET=m
 CONFIG_NETFILTER_XT_MATCH_STATE=m
 CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
 CONFIG_NETFILTER_XT_MATCH_STRING=m
@@ -293,7 +322,6 @@ CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
 CONFIG_IP_NF_RAW=m
 CONFIG_IP_NF_SECURITY=m
-CONFIG_IP_NF_ARPTABLES=m
 CONFIG_IP_NF_ARPFILTER=m
 CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NFT_FIB_IPV6=m
@@ -363,7 +391,6 @@ CONFIG_NET_ACT_POLICE=m
 CONFIG_NET_ACT_GACT=m
 CONFIG_GACT_PROB=y
 CONFIG_NET_ACT_MIRRED=m
-CONFIG_NET_ACT_IPT=m
 CONFIG_NET_ACT_NAT=m
 CONFIG_NET_ACT_PEDIT=m
 CONFIG_NET_ACT_SIMP=m
@@ -452,6 +479,7 @@ CONFIG_DM_VERITY=m
 CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG=y
 CONFIG_DM_SWITCH=m
 CONFIG_DM_INTEGRITY=m
+CONFIG_DM_VDO=m
 CONFIG_NETDEVICES=y
 CONFIG_BONDING=m
 CONFIG_DUMMY=m
@@ -564,17 +592,16 @@ CONFIG_WATCHDOG_CORE=y
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_SOFT_WATCHDOG=m
 CONFIG_DIAG288_WATCHDOG=m
+CONFIG_DRM=m
+CONFIG_DRM_VIRTIO_GPU=m
 CONFIG_FB=y
 # CONFIG_FB_DEVICE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
 # CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_INFINIBAND=m
 CONFIG_INFINIBAND_USER_ACCESS=m
 CONFIG_MLX4_INFINIBAND=m
 CONFIG_MLX5_INFINIBAND=m
-CONFIG_SYNC_FILE=y
 CONFIG_VFIO=m
 CONFIG_VFIO_PCI=m
 CONFIG_MLX5_VFIO_PCI=m
@@ -630,7 +657,6 @@ CONFIG_MSDOS_FS=m
 CONFIG_VFAT_FS=m
 CONFIG_EXFAT_FS=m
 CONFIG_NTFS_FS=m
-CONFIG_NTFS_RW=y
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
@@ -649,6 +675,7 @@ CONFIG_SQUASHFS_XZ=y
 CONFIG_SQUASHFS_ZSTD=y
 CONFIG_ROMFS_FS=m
 CONFIG_NFS_FS=m
+CONFIG_NFS_V2=m
 CONFIG_NFS_V3_ACL=y
 CONFIG_NFS_V4=m
 CONFIG_NFS_SWAP=y
@@ -745,7 +772,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
 CONFIG_CRYPTO_USER_API_RNG=m
 CONFIG_CRYPTO_USER_API_AEAD=m
-CONFIG_CRYPTO_STATS=y
 CONFIG_CRYPTO_CRC32_S390=y
 CONFIG_CRYPTO_SHA512_S390=m
 CONFIG_CRYPTO_SHA1_S390=m
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index c51f3ec4eb..8c2b61363b 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -9,25 +9,22 @@ CONFIG_BPF_SYSCALL=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_KEXEC=y
-CONFIG_CRASH_DUMP=y
 CONFIG_MARCH_Z13=y
 CONFIG_NR_CPUS=2
 CONFIG_HZ_100=y
 # CONFIG_CHSC_SCH is not set
 # CONFIG_SCM_BUS is not set
+# CONFIG_AP is not set
 # CONFIG_PFAULT is not set
 # CONFIG_S390_HYPFS is not set
 # CONFIG_VIRTUALIZATION is not set
 # CONFIG_S390_GUEST is not set
 # CONFIG_SECCOMP is not set
-# CONFIG_GCC_PLUGINS is not set
 # CONFIG_BLOCK_LEGACY_AUTOLOAD is not set
 CONFIG_PARTITION_ADVANCED=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 # CONFIG_SWAP is not set
 # CONFIG_COMPAT_BRK is not set
-# CONFIG_COMPACTION is not set
-# CONFIG_MIGRATION is not set
 CONFIG_NET=y
 # CONFIG_IUCV is not set
 # CONFIG_PCPU_DEV_REFCNT is not set
diff --git a/arch/s390/include/asm/alternative-asm.h b/arch/s390/include/asm/alternative-asm.h
index 7db046596b..608f6287ca 100644
--- a/arch/s390/include/asm/alternative-asm.h
+++ b/arch/s390/include/asm/alternative-asm.h
@@ -15,6 +15,7 @@
 	.long	\alt_start - .
 	.word	\feature
 	.byte	\orig_end - \orig_start
+	.org	. - ( \orig_end - \orig_start ) & 1
 	.org	. - ( \orig_end - \orig_start ) + ( \alt_end - \alt_start )
 	.org	. - ( \alt_end - \alt_start ) + ( \orig_end - \orig_start )
 .endm
diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h
index 904dd049f9..dd93b92c3a 100644
--- a/arch/s390/include/asm/alternative.h
+++ b/arch/s390/include/asm/alternative.h
@@ -53,6 +53,7 @@ void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
 	"\t.long " b_altinstr(num)"b - .\n"	/* alt instruction */	\
 	"\t.word " __stringify(facility) "\n"	/* facility bit    */	\
 	"\t.byte " oldinstr_len "\n"		/* instruction len */	\
+	"\t.org . - (" oldinstr_len ") & 1\n"				\
 	"\t.org . - (" oldinstr_len ") + (" altinstr_len(num) ")\n"	\
 	"\t.org . - (" altinstr_len(num) ") + (" oldinstr_len ")\n"
 
diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h
index 43ac4a64f4..395b02d6a1 100644
--- a/arch/s390/include/asm/ap.h
+++ b/arch/s390/include/asm/ap.h
@@ -223,13 +223,18 @@ static inline struct ap_queue_status ap_zapq(ap_qid_t qid, int fbit)
  * config info as returned by the ap_qci() function.
  */
 struct ap_config_info {
-	unsigned int apsc	 : 1;	/* S bit */
-	unsigned int apxa	 : 1;	/* N bit */
-	unsigned int qact	 : 1;	/* C bit */
-	unsigned int rc8a	 : 1;	/* R bit */
-	unsigned int		 : 4;
-	unsigned int apsb	 : 1;	/* B bit */
-	unsigned int		 : 23;
+	union {
+		unsigned int flags;
+		struct {
+			unsigned int apsc	 : 1;	/* S bit */
+			unsigned int apxa	 : 1;	/* N bit */
+			unsigned int qact	 : 1;	/* C bit */
+			unsigned int rc8a	 : 1;	/* R bit */
+			unsigned int		 : 4;
+			unsigned int apsb	 : 1;	/* B bit */
+			unsigned int		 : 23;
+		};
+	};
 	unsigned char na;		/* max # of APs - 1 */
 	unsigned char nd;		/* max # of Domains - 1 */
 	unsigned char _reserved0[10];
@@ -544,15 +549,4 @@ static inline struct ap_queue_status ap_dqap(ap_qid_t qid,
 	return reg1.status;
 }
 
-/*
- * Interface to tell the AP bus code that a configuration
- * change has happened. The bus code should at least do
- * an ap bus resource rescan.
- */
-#if IS_ENABLED(CONFIG_ZCRYPT)
-void ap_bus_cfg_chg(void);
-#else
-static inline void ap_bus_cfg_chg(void){}
-#endif
-
 #endif /* _ASM_S390_AP_H_ */
diff --git a/arch/s390/include/asm/asm-prototypes.h b/arch/s390/include/asm/asm-prototypes.h
index 56096ae26f..f662eb4b92 100644
--- a/arch/s390/include/asm/asm-prototypes.h
+++ b/arch/s390/include/asm/asm-prototypes.h
@@ -4,6 +4,7 @@
 #include <linux/kvm_host.h>
 #include <linux/ftrace.h>
 #include <asm/fpu.h>
+#include <asm/nospec-branch.h>
 #include <asm-generic/asm-prototypes.h>
 
 __int128_t __ashlti3(__int128_t a, int b);
diff --git a/arch/s390/include/asm/chsc.h b/arch/s390/include/asm/chsc.h
index bb48ea380c..bb78159d80 100644
--- a/arch/s390/include/asm/chsc.h
+++ b/arch/s390/include/asm/chsc.h
@@ -11,6 +11,9 @@
 
 #include <uapi/asm/chsc.h>
 
+/* struct from linux/notifier.h */
+struct notifier_block;
+
 /**
  * Operation codes for CHSC PNSO:
  *    PNSO_OC_NET_BRIDGE_INFO - only addresses that are visible to a bridgeport
@@ -66,4 +69,16 @@ struct chsc_pnso_area {
 	struct chsc_pnso_naid_l2 entries[];
 } __packed __aligned(PAGE_SIZE);
 
+/*
+ * notifier interface - registered notifiers gets called on
+ * the following events:
+ * - ap config changed (CHSC_NOTIFY_AP_CFG)
+ */
+enum chsc_notify_type {
+	CHSC_NOTIFY_AP_CFG = 3,
+};
+
+int chsc_notifier_register(struct notifier_block *nb);
+int chsc_notifier_unregister(struct notifier_block *nb);
+
 #endif /* _ASM_S390_CHSC_H */
diff --git a/arch/s390/include/asm/extmem.h b/arch/s390/include/asm/extmem.h
index 568fd81bb7..e0a06060af 100644
--- a/arch/s390/include/asm/extmem.h
+++ b/arch/s390/include/asm/extmem.h
@@ -8,6 +8,13 @@
 #define _ASM_S390X_DCSS_H
 #ifndef __ASSEMBLY__
 
+/*
+ * DCSS segment is defined as a contiguous range of pages using DEFSEG command.
+ * The range start and end is a page number with a value less than or equal to
+ * 0x7ffffff (see CP Commands and Utilities Reference).
+ */
+#define MAX_DCSS_ADDR	(512UL * SZ_1G)
+
 /* possible values for segment type as returned by segment_info */
 #define SEG_TYPE_SW 0
 #define SEG_TYPE_EW 1
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index deb198a610..ce5f4fe8be 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -39,11 +39,11 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void arch_clear_hugepage_flags(struct page *page)
+static inline void arch_clear_hugetlb_flags(struct folio *folio)
 {
-	clear_bit(PG_arch_1, &page->flags);
+	clear_bit(PG_arch_1, &folio->flags);
 }
-#define arch_clear_hugepage_flags arch_clear_hugepage_flags
+#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
 
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 				  pte_t *ptep, unsigned long sz)
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index 4453ad7c11..0fbc992d7a 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -73,6 +73,21 @@ static inline void ioport_unmap(void __iomem *p)
 #define __raw_writel	zpci_write_u32
 #define __raw_writeq	zpci_write_u64
 
+/* combine single writes by using store-block insn */
+static inline void __iowrite32_copy(void __iomem *to, const void *from,
+				    size_t count)
+{
+	zpci_memcpy_toio(to, from, count * 4);
+}
+#define __iowrite32_copy __iowrite32_copy
+
+static inline void __iowrite64_copy(void __iomem *to, const void *from,
+				    size_t count)
+{
+	zpci_memcpy_toio(to, from, count * 8);
+}
+#define __iowrite64_copy __iowrite64_copy
+
 #endif /* CONFIG_PCI */
 
 #include <asm-generic/io.h>
diff --git a/arch/s390/include/asm/nospec-branch.h b/arch/s390/include/asm/nospec-branch.h
index 82725cf783..b9c1f3cae8 100644
--- a/arch/s390/include/asm/nospec-branch.h
+++ b/arch/s390/include/asm/nospec-branch.h
@@ -17,6 +17,26 @@ static inline bool nospec_uses_trampoline(void)
 	return __is_defined(CC_USING_EXPOLINE) && !nospec_disable;
 }
 
+#ifdef CONFIG_EXPOLINE_EXTERN
+
+void __s390_indirect_jump_r1(void);
+void __s390_indirect_jump_r2(void);
+void __s390_indirect_jump_r3(void);
+void __s390_indirect_jump_r4(void);
+void __s390_indirect_jump_r5(void);
+void __s390_indirect_jump_r6(void);
+void __s390_indirect_jump_r7(void);
+void __s390_indirect_jump_r8(void);
+void __s390_indirect_jump_r9(void);
+void __s390_indirect_jump_r10(void);
+void __s390_indirect_jump_r11(void);
+void __s390_indirect_jump_r12(void);
+void __s390_indirect_jump_r13(void);
+void __s390_indirect_jump_r14(void);
+void __s390_indirect_jump_r15(void);
+
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_S390_EXPOLINE_H */
diff --git a/arch/s390/include/asm/nospec-insn.h b/arch/s390/include/asm/nospec-insn.h
index 7a946c42ad..cb15dd25bf 100644
--- a/arch/s390/include/asm/nospec-insn.h
+++ b/arch/s390/include/asm/nospec-insn.h
@@ -16,24 +16,25 @@
  */
 	.macro __THUNK_PROLOG_NAME name
 #ifdef CONFIG_EXPOLINE_EXTERN
-	.pushsection .text,"ax",@progbits
-	__ALIGN
+	SYM_CODE_START(\name)
 #else
 	.pushsection .text.\name,"axG",@progbits,\name,comdat
-#endif
 	.globl \name
 	.hidden \name
 	.type \name,@function
 \name:
 	CFI_STARTPROC
+#endif
 	.endm
 
 	.macro __THUNK_EPILOG_NAME name
-	CFI_ENDPROC
 #ifdef CONFIG_EXPOLINE_EXTERN
-	.size \name, .-\name
-#endif
+	SYM_CODE_END(\name)
+	EXPORT_SYMBOL(\name)
+#else
+	CFI_ENDPROC
 	.popsection
+#endif
 	.endm
 
 	.macro __THUNK_PROLOG_BR r1
diff --git a/arch/s390/include/asm/os_info.h b/arch/s390/include/asm/os_info.h
index a4d2e103f1..3ee9e8f5ce 100644
--- a/arch/s390/include/asm/os_info.h
+++ b/arch/s390/include/asm/os_info.h
@@ -17,11 +17,25 @@
 #define OS_INFO_VMCOREINFO	0
 #define OS_INFO_REIPL_BLOCK	1
 #define OS_INFO_FLAGS_ENTRY	2
+#define OS_INFO_RESERVED	3
+#define OS_INFO_IDENTITY_BASE	4
+#define OS_INFO_KASLR_OFFSET	5
+#define OS_INFO_KASLR_OFF_PHYS	6
+#define OS_INFO_VMEMMAP		7
+#define OS_INFO_AMODE31_START	8
+#define OS_INFO_AMODE31_END	9
+#define OS_INFO_IMAGE_START	10
+#define OS_INFO_IMAGE_END	11
+#define OS_INFO_IMAGE_PHYS	12
+#define OS_INFO_MAX		13
 
 #define OS_INFO_FLAG_REIPL_CLEAR	(1UL << 0)
 
 struct os_info_entry {
-	u64	addr;
+	union {
+		u64	addr;
+		u64	val;
+	};
 	u64	size;
 	u32	csum;
 } __packed;
@@ -33,17 +47,24 @@ struct os_info {
 	u16	version_minor;
 	u64	crashkernel_addr;
 	u64	crashkernel_size;
-	struct os_info_entry entry[3];
-	u8	reserved[4004];
+	struct os_info_entry entry[OS_INFO_MAX];
+	u8	reserved[3804];
 } __packed;
 
 void os_info_init(void);
-void os_info_entry_add(int nr, void *ptr, u64 len);
+void os_info_entry_add_data(int nr, void *ptr, u64 len);
+void os_info_entry_add_val(int nr, u64 val);
 void os_info_crashkernel_add(unsigned long base, unsigned long size);
 u32 os_info_csum(struct os_info *os_info);
 
 #ifdef CONFIG_CRASH_DUMP
 void *os_info_old_entry(int nr, unsigned long *size);
+static inline unsigned long os_info_old_value(int nr)
+{
+	unsigned long size;
+
+	return (unsigned long)os_info_old_entry(nr, &size);
+}
 #else
 static inline void *os_info_old_entry(int nr, unsigned long *size)
 {
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 9381879f7e..224ff9d433 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -178,19 +178,52 @@ int arch_make_page_accessible(struct page *page);
 #define HAVE_ARCH_MAKE_PAGE_ACCESSIBLE
 #endif
 
-#define __PAGE_OFFSET		0x0UL
-#define PAGE_OFFSET		0x0UL
+struct vm_layout {
+	unsigned long kaslr_offset;
+	unsigned long kaslr_offset_phys;
+	unsigned long identity_base;
+	unsigned long identity_size;
+};
 
-#define __pa_nodebug(x)		((unsigned long)(x))
+extern struct vm_layout vm_layout;
+
+#define __kaslr_offset		vm_layout.kaslr_offset
+#define __kaslr_offset_phys	vm_layout.kaslr_offset_phys
+#define __identity_base		vm_layout.identity_base
+#define ident_map_size		vm_layout.identity_size
+
+static inline unsigned long kaslr_offset(void)
+{
+	return __kaslr_offset;
+}
+
+extern int __kaslr_enabled;
+static inline int kaslr_enabled(void)
+{
+	if (IS_ENABLED(CONFIG_RANDOMIZE_BASE))
+		return __kaslr_enabled;
+	return 0;
+}
+
+#define __PAGE_OFFSET		__identity_base
+#define PAGE_OFFSET		__PAGE_OFFSET
 
 #ifdef __DECOMPRESSOR
 
+#define __pa_nodebug(x)		((unsigned long)(x))
 #define __pa(x)			__pa_nodebug(x)
 #define __pa32(x)		__pa(x)
 #define __va(x)			((void *)(unsigned long)(x))
 
 #else /* __DECOMPRESSOR */
 
+static inline unsigned long __pa_nodebug(unsigned long x)
+{
+	if (x < __kaslr_offset)
+		return x - __identity_base;
+	return x - __kaslr_offset + __kaslr_offset_phys;
+}
+
 #ifdef CONFIG_DEBUG_VIRTUAL
 
 unsigned long __phys_addr(unsigned long x, bool is_31bit);
@@ -206,7 +239,7 @@ static inline unsigned long __phys_addr(unsigned long x, bool is_31bit)
 
 #define __pa(x)			__phys_addr((unsigned long)(x), false)
 #define __pa32(x)		__phys_addr((unsigned long)(x), true)
-#define __va(x)			((void *)(unsigned long)(x))
+#define __va(x)			((void *)((unsigned long)(x) + __identity_base))
 
 #endif /* __DECOMPRESSOR */
 
@@ -231,7 +264,7 @@ static inline unsigned long virt_to_pfn(const void *kaddr)
 #define virt_to_page(kaddr)	pfn_to_page(virt_to_pfn(kaddr))
 #define page_to_virt(page)	pfn_to_virt(page_to_pfn(page))
 
-#define virt_addr_valid(kaddr)	pfn_valid(phys_to_pfn(__pa_nodebug(kaddr)))
+#define virt_addr_valid(kaddr)	pfn_valid(phys_to_pfn(__pa_nodebug((unsigned long)(kaddr))))
 
 #define VM_DATA_DEFAULT_FLAGS	VM_DATA_FLAGS_NON_EXEC
 
@@ -240,4 +273,11 @@ static inline unsigned long virt_to_pfn(const void *kaddr)
 #include <asm-generic/memory_model.h>
 #include <asm-generic/getorder.h>
 
+#define AMODE31_SIZE		(3 * PAGE_SIZE)
+
+#define KERNEL_IMAGE_SIZE	(512 * 1024 * 1024)
+#define __START_KERNEL		0x100000
+#define __NO_KASLR_START_KERNEL	CONFIG_KERNEL_IMAGE_BASE
+#define __NO_KASLR_END_KERNEL	(__NO_KASLR_START_KERNEL + KERNEL_IMAGE_SIZE)
+
 #endif /* _S390_PAGE_H */
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 1077c1daec..70b6ee557e 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -107,6 +107,12 @@ static inline int is_module_addr(void *addr)
 	return 1;
 }
 
+#ifdef CONFIG_RANDOMIZE_BASE
+#define KASLR_LEN	(1UL << 31)
+#else
+#define KASLR_LEN	0UL
+#endif
+
 /*
  * A 64 bit pagetable entry of S390 has following format:
  * |			 PFRA			      |0IPC|  OS  |
@@ -262,12 +268,14 @@ static inline int is_module_addr(void *addr)
 #define _REGION3_ENTRY		(_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_LENGTH)
 #define _REGION3_ENTRY_EMPTY	(_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INVALID)
 
+#define _REGION3_ENTRY_HARDWARE_BITS		0xfffffffffffff6ffUL
+#define _REGION3_ENTRY_HARDWARE_BITS_LARGE	0xffffffff8001073cUL
 #define _REGION3_ENTRY_ORIGIN_LARGE ~0x7fffffffUL /* large page address	     */
 #define _REGION3_ENTRY_DIRTY	0x2000	/* SW region dirty bit */
 #define _REGION3_ENTRY_YOUNG	0x1000	/* SW region young bit */
 #define _REGION3_ENTRY_LARGE	0x0400	/* RTTE-format control, large page  */
-#define _REGION3_ENTRY_READ	0x0002	/* SW region read bit */
-#define _REGION3_ENTRY_WRITE	0x0001	/* SW region write bit */
+#define _REGION3_ENTRY_WRITE	0x0002	/* SW region write bit */
+#define _REGION3_ENTRY_READ	0x0001	/* SW region read bit */
 
 #ifdef CONFIG_MEM_SOFT_DIRTY
 #define _REGION3_ENTRY_SOFT_DIRTY 0x4000 /* SW region soft dirty bit */
@@ -278,9 +286,9 @@ static inline int is_module_addr(void *addr)
 #define _REGION_ENTRY_BITS	 0xfffffffffffff22fUL
 
 /* Bits in the segment table entry */
-#define _SEGMENT_ENTRY_BITS			0xfffffffffffffe33UL
-#define _SEGMENT_ENTRY_HARDWARE_BITS		0xfffffffffffffe30UL
-#define _SEGMENT_ENTRY_HARDWARE_BITS_LARGE	0xfffffffffff00730UL
+#define _SEGMENT_ENTRY_BITS			0xfffffffffffffe3fUL
+#define _SEGMENT_ENTRY_HARDWARE_BITS		0xfffffffffffffe3cUL
+#define _SEGMENT_ENTRY_HARDWARE_BITS_LARGE	0xfffffffffff1073cUL
 #define _SEGMENT_ENTRY_ORIGIN_LARGE ~0xfffffUL /* large page address	    */
 #define _SEGMENT_ENTRY_ORIGIN	~0x7ffUL/* page table origin		    */
 #define _SEGMENT_ENTRY_PROTECT	0x200	/* segment protection bit	    */
@@ -1415,6 +1423,7 @@ static inline unsigned long pud_deref(pud_t pud)
 	return (unsigned long)__va(pud_val(pud) & origin_mask);
 }
 
+#define pud_pfn pud_pfn
 static inline unsigned long pud_pfn(pud_t pud)
 {
 	return __pa(pud_deref(pud)) >> PAGE_SHIFT;
diff --git a/arch/s390/include/asm/physmem_info.h b/arch/s390/include/asm/physmem_info.h
index e747b067f8..f45cfc8bc2 100644
--- a/arch/s390/include/asm/physmem_info.h
+++ b/arch/s390/include/asm/physmem_info.h
@@ -22,7 +22,6 @@ enum reserved_range_type {
 	RR_DECOMPRESSOR,
 	RR_INITRD,
 	RR_VMLINUX,
-	RR_RELOC,
 	RR_AMODE31,
 	RR_IPLREPORT,
 	RR_CERT_COMP_LIST,
@@ -170,4 +169,7 @@ static inline unsigned long get_physmem_reserved(enum reserved_range_type type,
 	return *size;
 }
 
+#define AMODE31_START	(physmem_info.reserved[RR_AMODE31].start)
+#define AMODE31_END	(physmem_info.reserved[RR_AMODE31].end)
+
 #endif
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index a589547ee0..07ad5a1df8 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -40,6 +40,7 @@
 #include <asm/setup.h>
 #include <asm/runtime_instr.h>
 #include <asm/irqflags.h>
+#include <asm/alternative.h>
 
 typedef long (*sys_call_ptr_t)(struct pt_regs *regs);
 
@@ -92,6 +93,14 @@ static inline void get_cpu_id(struct cpuid *ptr)
 	asm volatile("stidp %0" : "=Q" (*ptr));
 }
 
+static __always_inline unsigned long get_cpu_timer(void)
+{
+	unsigned long timer;
+
+	asm volatile("stpt	%[timer]" : [timer] "=Q" (timer));
+	return timer;
+}
+
 void s390_adjust_jiffies(void);
 void s390_update_cpu_mhz(void);
 void cpu_detect_mhz_feature(void);
@@ -394,6 +403,11 @@ static __always_inline bool regs_irqs_disabled(struct pt_regs *regs)
 	return arch_irqs_disabled_flags(regs->psw.mask);
 }
 
+static __always_inline void bpon(void)
+{
+	asm volatile(ALTERNATIVE("nop", ".insn	rrf,0xb2e80000,0,0,13,0", 82));
+}
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_S390_PROCESSOR_H */
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 03bcaa8eff..32f70873e2 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -127,20 +127,6 @@ extern void (*_machine_restart)(char *command);
 extern void (*_machine_halt)(void);
 extern void (*_machine_power_off)(void);
 
-extern unsigned long __kaslr_offset;
-static inline unsigned long kaslr_offset(void)
-{
-	return __kaslr_offset;
-}
-
-extern int __kaslr_enabled;
-static inline int kaslr_enabled(void)
-{
-	if (IS_ENABLED(CONFIG_RANDOMIZE_BASE))
-		return __kaslr_enabled;
-	return 0;
-}
-
 struct oldmem_data {
 	unsigned long start;
 	unsigned long size;
diff --git a/arch/s390/include/asm/vdso/gettimeofday.h b/arch/s390/include/asm/vdso/gettimeofday.h
index db84942eb7..7937765ccf 100644
--- a/arch/s390/include/asm/vdso/gettimeofday.h
+++ b/arch/s390/include/asm/vdso/gettimeofday.h
@@ -6,16 +6,13 @@
 
 #define VDSO_HAS_CLOCK_GETRES 1
 
+#define VDSO_DELTA_NOMASK 1
+
 #include <asm/syscall.h>
 #include <asm/timex.h>
 #include <asm/unistd.h>
 #include <linux/compiler.h>
 
-#define vdso_calc_delta __arch_vdso_calc_delta
-static __always_inline u64 __arch_vdso_calc_delta(u64 cycles, u64 last, u64 mask, u32 mult)
-{
-	return (cycles - last) * mult;
-}
 
 static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
 {
diff --git a/arch/s390/include/asm/vtime.h b/arch/s390/include/asm/vtime.h
index fe17e448c0..561c91c1a8 100644
--- a/arch/s390/include/asm/vtime.h
+++ b/arch/s390/include/asm/vtime.h
@@ -2,8 +2,6 @@
 #ifndef _S390_VTIME_H
 #define _S390_VTIME_H
 
-#define __ARCH_HAS_VTIME_TASK_SWITCH
-
 static inline void update_timer_sys(void)
 {
 	S390_lowcore.system_timer += S390_lowcore.last_update_timer - S390_lowcore.exit_timer;
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index db2d9ba5a8..7241fa1947 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -59,7 +59,6 @@ obj-$(CONFIG_COMPAT)		+= compat_linux.o compat_signal.o
 obj-$(CONFIG_COMPAT)		+= $(compat-obj-y)
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
-obj-$(CONFIG_KPROBES)		+= kprobes_insn_page.o
 obj-$(CONFIG_KPROBES)		+= mcount.o
 obj-$(CONFIG_RETHOOK)		+= rethook.o
 obj-$(CONFIG_FUNCTION_TRACER)	+= ftrace.o
diff --git a/arch/s390/kernel/alternative.c b/arch/s390/kernel/alternative.c
index e7bca29f9c..1ac5f707dd 100644
--- a/arch/s390/kernel/alternative.c
+++ b/arch/s390/kernel/alternative.c
@@ -33,13 +33,6 @@ static void __init_or_module __apply_alternatives(struct alt_instr *start,
 
 		if (!__test_facility(a->facility, alt_stfle_fac_list))
 			continue;
-
-		if (unlikely(a->instrlen % 2)) {
-			WARN_ONCE(1, "cpu alternatives instructions length is "
-				     "odd, skipping patching\n");
-			continue;
-		}
-
 		s390_kernel_write(instr, replacement, a->instrlen);
 	}
 }
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 2f65bca2f3..f55979f64d 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -13,7 +13,6 @@
 #include <linux/purgatory.h>
 #include <linux/pgtable.h>
 #include <linux/ftrace.h>
-#include <asm/idle.h>
 #include <asm/gmap.h>
 #include <asm/stacktrace.h>
 
@@ -71,11 +70,6 @@ int main(void)
 	OFFSET(__SFVDSO_RETURN_ADDRESS, stack_frame_vdso_wrapper, return_address);
 	DEFINE(STACK_FRAME_VDSO_OVERHEAD, sizeof(struct stack_frame_vdso_wrapper));
 	BLANK();
-	/* idle data offsets */
-	OFFSET(__CLOCK_IDLE_ENTER, s390_idle_data, clock_idle_enter);
-	OFFSET(__TIMER_IDLE_ENTER, s390_idle_data, timer_idle_enter);
-	OFFSET(__MT_CYCLES_ENTER, s390_idle_data, mt_cycles_enter);
-	BLANK();
 	/* hardware defined lowcore locations 0x000 - 0x1ff */
 	OFFSET(__LC_EXT_PARAMS, lowcore, ext_params);
 	OFFSET(__LC_EXT_CPU_ADDR, lowcore, ext_cpu_addr);
diff --git a/arch/s390/kernel/cert_store.c b/arch/s390/kernel/cert_store.c
index 554447768b..bf983513dd 100644
--- a/arch/s390/kernel/cert_store.c
+++ b/arch/s390/kernel/cert_store.c
@@ -21,6 +21,7 @@
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/sysfs.h>
+#include <linux/vmalloc.h>
 #include <crypto/sha2.h>
 #include <keys/user-type.h>
 #include <asm/debug.h>
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index d09ebb6f52..edae134161 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -451,7 +451,7 @@ static void *nt_final(void *ptr)
 /*
  * Initialize ELF header (new kernel)
  */
-static void *ehdr_init(Elf64_Ehdr *ehdr, int mem_chunk_cnt)
+static void *ehdr_init(Elf64_Ehdr *ehdr, int phdr_count)
 {
 	memset(ehdr, 0, sizeof(*ehdr));
 	memcpy(ehdr->e_ident, ELFMAG, SELFMAG);
@@ -465,7 +465,8 @@ static void *ehdr_init(Elf64_Ehdr *ehdr, int mem_chunk_cnt)
 	ehdr->e_phoff = sizeof(Elf64_Ehdr);
 	ehdr->e_ehsize = sizeof(Elf64_Ehdr);
 	ehdr->e_phentsize = sizeof(Elf64_Phdr);
-	ehdr->e_phnum = mem_chunk_cnt + 1;
+	/* Number of PT_LOAD program headers plus PT_NOTE program header */
+	ehdr->e_phnum = phdr_count + 1;
 	return ehdr + 1;
 }
 
@@ -499,17 +500,20 @@ static int get_mem_chunk_cnt(void)
 /*
  * Initialize ELF loads (new kernel)
  */
-static void loads_init(Elf64_Phdr *phdr)
+static void loads_init(Elf64_Phdr *phdr, bool os_info_has_vm)
 {
+	unsigned long old_identity_base = 0;
 	phys_addr_t start, end;
 	u64 idx;
 
+	if (os_info_has_vm)
+		old_identity_base = os_info_old_value(OS_INFO_IDENTITY_BASE);
 	for_each_physmem_range(idx, &oldmem_type, &start, &end) {
-		phdr->p_filesz = end - start;
 		phdr->p_type = PT_LOAD;
+		phdr->p_vaddr = old_identity_base + start;
 		phdr->p_offset = start;
-		phdr->p_vaddr = (unsigned long)__va(start);
 		phdr->p_paddr = start;
+		phdr->p_filesz = end - start;
 		phdr->p_memsz = end - start;
 		phdr->p_flags = PF_R | PF_W | PF_X;
 		phdr->p_align = PAGE_SIZE;
@@ -517,6 +521,30 @@ static void loads_init(Elf64_Phdr *phdr)
 	}
 }
 
+static bool os_info_has_vm(void)
+{
+	return os_info_old_value(OS_INFO_KASLR_OFFSET);
+}
+
+/*
+ * Prepare PT_LOAD type program header for kernel image region
+ */
+static void text_init(Elf64_Phdr *phdr)
+{
+	unsigned long start_phys = os_info_old_value(OS_INFO_IMAGE_PHYS);
+	unsigned long start = os_info_old_value(OS_INFO_IMAGE_START);
+	unsigned long end = os_info_old_value(OS_INFO_IMAGE_END);
+
+	phdr->p_type = PT_LOAD;
+	phdr->p_vaddr = start;
+	phdr->p_filesz = end - start;
+	phdr->p_memsz = end - start;
+	phdr->p_offset = start_phys;
+	phdr->p_paddr = start_phys;
+	phdr->p_flags = PF_R | PF_W | PF_X;
+	phdr->p_align = PAGE_SIZE;
+}
+
 /*
  * Initialize notes (new kernel)
  */
@@ -542,7 +570,7 @@ static void *notes_init(Elf64_Phdr *phdr, void *ptr, u64 notes_offset)
 	return ptr;
 }
 
-static size_t get_elfcorehdr_size(int mem_chunk_cnt)
+static size_t get_elfcorehdr_size(int phdr_count)
 {
 	size_t size;
 
@@ -558,7 +586,7 @@ static size_t get_elfcorehdr_size(int mem_chunk_cnt)
 	/* nt_final */
 	size += sizeof(Elf64_Nhdr);
 	/* PT_LOADS */
-	size += mem_chunk_cnt * sizeof(Elf64_Phdr);
+	size += phdr_count * sizeof(Elf64_Phdr);
 
 	return size;
 }
@@ -568,9 +596,9 @@ static size_t get_elfcorehdr_size(int mem_chunk_cnt)
  */
 int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size)
 {
-	Elf64_Phdr *phdr_notes, *phdr_loads;
+	Elf64_Phdr *phdr_notes, *phdr_loads, *phdr_text;
+	int mem_chunk_cnt, phdr_text_cnt;
 	size_t alloc_size;
-	int mem_chunk_cnt;
 	void *ptr, *hdr;
 	u64 hdr_off;
 
@@ -589,12 +617,14 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size)
 	}
 
 	mem_chunk_cnt = get_mem_chunk_cnt();
+	phdr_text_cnt = os_info_has_vm() ? 1 : 0;
 
-	alloc_size = get_elfcorehdr_size(mem_chunk_cnt);
+	alloc_size = get_elfcorehdr_size(mem_chunk_cnt + phdr_text_cnt);
 
 	hdr = kzalloc(alloc_size, GFP_KERNEL);
 
-	/* Without elfcorehdr /proc/vmcore cannot be created. Thus creating
+	/*
+	 * Without elfcorehdr /proc/vmcore cannot be created. Thus creating
 	 * a dump with this crash kernel will fail. Panic now to allow other
 	 * dump mechanisms to take over.
 	 */
@@ -602,18 +632,25 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size)
 		panic("s390 kdump allocating elfcorehdr failed");
 
 	/* Init elf header */
-	ptr = ehdr_init(hdr, mem_chunk_cnt);
+	phdr_notes = ehdr_init(hdr, mem_chunk_cnt + phdr_text_cnt);
 	/* Init program headers */
-	phdr_notes = ptr;
-	ptr = PTR_ADD(ptr, sizeof(Elf64_Phdr));
-	phdr_loads = ptr;
-	ptr = PTR_ADD(ptr, sizeof(Elf64_Phdr) * mem_chunk_cnt);
+	if (phdr_text_cnt) {
+		phdr_text = phdr_notes + 1;
+		phdr_loads = phdr_text + 1;
+	} else {
+		phdr_loads = phdr_notes + 1;
+	}
+	ptr = PTR_ADD(phdr_loads, sizeof(Elf64_Phdr) * mem_chunk_cnt);
 	/* Init notes */
 	hdr_off = PTR_DIFF(ptr, hdr);
 	ptr = notes_init(phdr_notes, ptr, ((unsigned long) hdr) + hdr_off);
+	/* Init kernel text program header */
+	if (phdr_text_cnt)
+		text_init(phdr_text);
 	/* Init loads */
+	loads_init(phdr_loads, phdr_text_cnt);
+	/* Finalize program headers */
 	hdr_off = PTR_DIFF(ptr, hdr);
-	loads_init(phdr_loads);
 	*addr = (unsigned long long) hdr;
 	*size = (unsigned long long) hdr_off;
 	BUG_ON(elfcorehdr_size > alloc_size);
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 6a1e0fbbaa..60cf917a71 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -441,29 +441,6 @@ INT_HANDLER ext_int_handler,__LC_EXT_OLD_PSW,do_ext_irq
 INT_HANDLER io_int_handler,__LC_IO_OLD_PSW,do_io_irq
 
 /*
- * Load idle PSW.
- */
-SYM_FUNC_START(psw_idle)
-	stg	%r14,(__SF_GPRS+8*8)(%r15)
-	stg	%r3,__SF_EMPTY(%r15)
-	larl	%r1,psw_idle_exit
-	stg	%r1,__SF_EMPTY+8(%r15)
-	larl	%r1,smp_cpu_mtid
-	llgf	%r1,0(%r1)
-	ltgr	%r1,%r1
-	jz	.Lpsw_idle_stcctm
-	.insn	rsy,0xeb0000000017,%r1,5,__MT_CYCLES_ENTER(%r2)
-.Lpsw_idle_stcctm:
-	oi	__LC_CPU_FLAGS+7,_CIF_ENABLED_WAIT
-	BPON
-	stckf	__CLOCK_IDLE_ENTER(%r2)
-	stpt	__TIMER_IDLE_ENTER(%r2)
-	lpswe	__SF_EMPTY(%r15)
-SYM_INNER_LABEL(psw_idle_exit, SYM_L_GLOBAL)
-	BR_EX	%r14
-SYM_FUNC_END(psw_idle)
-
-/*
  * Machine check handler routines
  */
 SYM_CODE_START(mcck_int_handler)
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 7f6f8c438c..ddf2ee47cb 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -7,13 +7,13 @@
  *   Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
-#include <linux/moduleloader.h>
 #include <linux/hardirq.h>
 #include <linux/uaccess.h>
 #include <linux/ftrace.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/kprobes.h>
+#include <linux/execmem.h>
 #include <trace/syscall.h>
 #include <asm/asm-offsets.h>
 #include <asm/text-patching.h>
@@ -220,7 +220,7 @@ static int __init ftrace_plt_init(void)
 {
 	const char *start, *end;
 
-	ftrace_plt = module_alloc(PAGE_SIZE);
+	ftrace_plt = execmem_alloc(EXECMEM_FTRACE, PAGE_SIZE);
 	if (!ftrace_plt)
 		panic("cannot allocate ftrace plt\n");
 
diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c
index e7239aaf42..af9c97c0ad 100644
--- a/arch/s390/kernel/idle.c
+++ b/arch/s390/kernel/idle.c
@@ -57,9 +57,13 @@ void noinstr arch_cpu_idle(void)
 	psw_mask = PSW_KERNEL_BITS | PSW_MASK_WAIT |
 		   PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
 	clear_cpu_flag(CIF_NOHZ_DELAY);
-
-	/* psw_idle() returns with interrupts disabled. */
-	psw_idle(idle, psw_mask);
+	set_cpu_flag(CIF_ENABLED_WAIT);
+	if (smp_cpu_mtid)
+		stcctm(MT_DIAG, smp_cpu_mtid, (u64 *)&idle->mt_cycles_enter);
+	idle->clock_idle_enter = get_tod_clock_fast();
+	idle->timer_idle_enter = get_cpu_timer();
+	bpon();
+	__load_psw_mask(psw_mask);
 }
 
 static ssize_t show_idle_count(struct device *dev,
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 469e8d3fbf..3a7d6e1722 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -20,6 +20,7 @@
 #include <linux/gfp.h>
 #include <linux/crash_dump.h>
 #include <linux/debug_locks.h>
+#include <linux/vmalloc.h>
 #include <asm/asm-extable.h>
 #include <asm/diag.h>
 #include <asm/ipl.h>
@@ -266,7 +267,11 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj,	\
 		struct kobj_attribute *attr,				\
 		const char *buf, size_t len)				\
 {									\
-	strscpy(_value, buf, sizeof(_value));				\
+	if (len >= sizeof(_value))					\
+		return -E2BIG;						\
+	len = strscpy(_value, buf, sizeof(_value));			\
+	if (len < 0)							\
+		return len;						\
 	strim(_value);							\
 	return len;							\
 }									\
@@ -275,6 +280,61 @@ static struct kobj_attribute sys_##_prefix##_##_name##_attr =		\
 			sys_##_prefix##_##_name##_show,			\
 			sys_##_prefix##_##_name##_store)
 
+#define IPL_ATTR_SCP_DATA_SHOW_FN(_prefix, _ipl_block)			\
+static ssize_t sys_##_prefix##_scp_data_show(struct file *filp,		\
+					    struct kobject *kobj,	\
+					    struct bin_attribute *attr,	\
+					    char *buf, loff_t off,	\
+					    size_t count)		\
+{									\
+	size_t size = _ipl_block.scp_data_len;				\
+	void *scp_data = _ipl_block.scp_data;				\
+									\
+	return memory_read_from_buffer(buf, count, &off,		\
+				       scp_data, size);			\
+}
+
+#define IPL_ATTR_SCP_DATA_STORE_FN(_prefix, _ipl_block_hdr, _ipl_block, _ipl_bp_len, _ipl_bp0_len)\
+static ssize_t sys_##_prefix##_scp_data_store(struct file *filp,	\
+					struct kobject *kobj,		\
+					struct bin_attribute *attr,	\
+					char *buf, loff_t off,		\
+					size_t count)			\
+{									\
+	size_t scpdata_len = count;					\
+	size_t padding;							\
+									\
+	if (off)							\
+		return -EINVAL;						\
+									\
+	memcpy(_ipl_block.scp_data, buf, count);			\
+	if (scpdata_len % 8) {						\
+		padding = 8 - (scpdata_len % 8);			\
+		memset(_ipl_block.scp_data + scpdata_len,		\
+		       0, padding);					\
+		scpdata_len += padding;					\
+	}								\
+									\
+	_ipl_block_hdr.len = _ipl_bp_len + scpdata_len;			\
+	_ipl_block.len = _ipl_bp0_len + scpdata_len;			\
+	_ipl_block.scp_data_len = scpdata_len;				\
+									\
+	return count;							\
+}
+
+#define DEFINE_IPL_ATTR_SCP_DATA_RO(_prefix, _ipl_block, _size)		\
+IPL_ATTR_SCP_DATA_SHOW_FN(_prefix, _ipl_block)				\
+static struct bin_attribute sys_##_prefix##_scp_data_attr =		\
+	__BIN_ATTR(scp_data, 0444, sys_##_prefix##_scp_data_show,	\
+		   NULL, _size)
+
+#define DEFINE_IPL_ATTR_SCP_DATA_RW(_prefix, _ipl_block_hdr, _ipl_block, _ipl_bp_len, _ipl_bp0_len, _size)\
+IPL_ATTR_SCP_DATA_SHOW_FN(_prefix, _ipl_block)					\
+IPL_ATTR_SCP_DATA_STORE_FN(_prefix, _ipl_block_hdr, _ipl_block, _ipl_bp_len, _ipl_bp0_len)\
+static struct bin_attribute sys_##_prefix##_scp_data_attr =			\
+	__BIN_ATTR(scp_data, 0644, sys_##_prefix##_scp_data_show,		\
+		   sys_##_prefix##_scp_data_store, _size)
+
 /*
  * ipl section
  */
@@ -373,71 +433,38 @@ static ssize_t sys_ipl_device_show(struct kobject *kobj,
 static struct kobj_attribute sys_ipl_device_attr =
 	__ATTR(device, 0444, sys_ipl_device_show, NULL);
 
-static ssize_t ipl_parameter_read(struct file *filp, struct kobject *kobj,
-				  struct bin_attribute *attr, char *buf,
-				  loff_t off, size_t count)
+static ssize_t sys_ipl_parameter_read(struct file *filp, struct kobject *kobj,
+				      struct bin_attribute *attr, char *buf,
+				      loff_t off, size_t count)
 {
 	return memory_read_from_buffer(buf, count, &off, &ipl_block,
 				       ipl_block.hdr.len);
 }
-static struct bin_attribute ipl_parameter_attr =
-	__BIN_ATTR(binary_parameter, 0444, ipl_parameter_read, NULL,
+static struct bin_attribute sys_ipl_parameter_attr =
+	__BIN_ATTR(binary_parameter, 0444, sys_ipl_parameter_read, NULL,
 		   PAGE_SIZE);
 
-static ssize_t ipl_scp_data_read(struct file *filp, struct kobject *kobj,
-				 struct bin_attribute *attr, char *buf,
-				 loff_t off, size_t count)
-{
-	unsigned int size = ipl_block.fcp.scp_data_len;
-	void *scp_data = &ipl_block.fcp.scp_data;
-
-	return memory_read_from_buffer(buf, count, &off, scp_data, size);
-}
-
-static ssize_t ipl_nvme_scp_data_read(struct file *filp, struct kobject *kobj,
-				 struct bin_attribute *attr, char *buf,
-				 loff_t off, size_t count)
-{
-	unsigned int size = ipl_block.nvme.scp_data_len;
-	void *scp_data = &ipl_block.nvme.scp_data;
-
-	return memory_read_from_buffer(buf, count, &off, scp_data, size);
-}
-
-static ssize_t ipl_eckd_scp_data_read(struct file *filp, struct kobject *kobj,
-				      struct bin_attribute *attr, char *buf,
-				      loff_t off, size_t count)
-{
-	unsigned int size = ipl_block.eckd.scp_data_len;
-	void *scp_data = &ipl_block.eckd.scp_data;
-
-	return memory_read_from_buffer(buf, count, &off, scp_data, size);
-}
-
-static struct bin_attribute ipl_scp_data_attr =
-	__BIN_ATTR(scp_data, 0444, ipl_scp_data_read, NULL, PAGE_SIZE);
-
-static struct bin_attribute ipl_nvme_scp_data_attr =
-	__BIN_ATTR(scp_data, 0444, ipl_nvme_scp_data_read, NULL, PAGE_SIZE);
-
-static struct bin_attribute ipl_eckd_scp_data_attr =
-	__BIN_ATTR(scp_data, 0444, ipl_eckd_scp_data_read, NULL, PAGE_SIZE);
+DEFINE_IPL_ATTR_SCP_DATA_RO(ipl_fcp, ipl_block.fcp, PAGE_SIZE);
 
 static struct bin_attribute *ipl_fcp_bin_attrs[] = {
-	&ipl_parameter_attr,
-	&ipl_scp_data_attr,
+	&sys_ipl_parameter_attr,
+	&sys_ipl_fcp_scp_data_attr,
 	NULL,
 };
 
+DEFINE_IPL_ATTR_SCP_DATA_RO(ipl_nvme, ipl_block.nvme, PAGE_SIZE);
+
 static struct bin_attribute *ipl_nvme_bin_attrs[] = {
-	&ipl_parameter_attr,
-	&ipl_nvme_scp_data_attr,
+	&sys_ipl_parameter_attr,
+	&sys_ipl_nvme_scp_data_attr,
 	NULL,
 };
 
+DEFINE_IPL_ATTR_SCP_DATA_RO(ipl_eckd, ipl_block.eckd, PAGE_SIZE);
+
 static struct bin_attribute *ipl_eckd_bin_attrs[] = {
-	&ipl_parameter_attr,
-	&ipl_eckd_scp_data_attr,
+	&sys_ipl_parameter_attr,
+	&sys_ipl_eckd_scp_data_attr,
 	NULL,
 };
 
@@ -776,44 +803,10 @@ static struct kobj_attribute sys_reipl_ccw_vmparm_attr =
 
 /* FCP reipl device attributes */
 
-static ssize_t reipl_fcp_scpdata_read(struct file *filp, struct kobject *kobj,
-				      struct bin_attribute *attr,
-				      char *buf, loff_t off, size_t count)
-{
-	size_t size = reipl_block_fcp->fcp.scp_data_len;
-	void *scp_data = reipl_block_fcp->fcp.scp_data;
-
-	return memory_read_from_buffer(buf, count, &off, scp_data, size);
-}
-
-static ssize_t reipl_fcp_scpdata_write(struct file *filp, struct kobject *kobj,
-				       struct bin_attribute *attr,
-				       char *buf, loff_t off, size_t count)
-{
-	size_t scpdata_len = count;
-	size_t padding;
-
-
-	if (off)
-		return -EINVAL;
-
-	memcpy(reipl_block_fcp->fcp.scp_data, buf, count);
-	if (scpdata_len % 8) {
-		padding = 8 - (scpdata_len % 8);
-		memset(reipl_block_fcp->fcp.scp_data + scpdata_len,
-		       0, padding);
-		scpdata_len += padding;
-	}
-
-	reipl_block_fcp->hdr.len = IPL_BP_FCP_LEN + scpdata_len;
-	reipl_block_fcp->fcp.len = IPL_BP0_FCP_LEN + scpdata_len;
-	reipl_block_fcp->fcp.scp_data_len = scpdata_len;
-
-	return count;
-}
-static struct bin_attribute sys_reipl_fcp_scp_data_attr =
-	__BIN_ATTR(scp_data, 0644, reipl_fcp_scpdata_read,
-		   reipl_fcp_scpdata_write, DIAG308_SCPDATA_SIZE);
+DEFINE_IPL_ATTR_SCP_DATA_RW(reipl_fcp, reipl_block_fcp->hdr,
+			    reipl_block_fcp->fcp,
+			    IPL_BP_FCP_LEN, IPL_BP0_FCP_LEN,
+			    DIAG308_SCPDATA_SIZE);
 
 static struct bin_attribute *reipl_fcp_bin_attrs[] = {
 	&sys_reipl_fcp_scp_data_attr,
@@ -934,44 +927,10 @@ static struct kobj_attribute sys_reipl_fcp_clear_attr =
 
 /* NVME reipl device attributes */
 
-static ssize_t reipl_nvme_scpdata_read(struct file *filp, struct kobject *kobj,
-				      struct bin_attribute *attr,
-				      char *buf, loff_t off, size_t count)
-{
-	size_t size = reipl_block_nvme->nvme.scp_data_len;
-	void *scp_data = reipl_block_nvme->nvme.scp_data;
-
-	return memory_read_from_buffer(buf, count, &off, scp_data, size);
-}
-
-static ssize_t reipl_nvme_scpdata_write(struct file *filp, struct kobject *kobj,
-				       struct bin_attribute *attr,
-				       char *buf, loff_t off, size_t count)
-{
-	size_t scpdata_len = count;
-	size_t padding;
-
-	if (off)
-		return -EINVAL;
-
-	memcpy(reipl_block_nvme->nvme.scp_data, buf, count);
-	if (scpdata_len % 8) {
-		padding = 8 - (scpdata_len % 8);
-		memset(reipl_block_nvme->nvme.scp_data + scpdata_len,
-		       0, padding);
-		scpdata_len += padding;
-	}
-
-	reipl_block_nvme->hdr.len = IPL_BP_NVME_LEN + scpdata_len;
-	reipl_block_nvme->nvme.len = IPL_BP0_NVME_LEN + scpdata_len;
-	reipl_block_nvme->nvme.scp_data_len = scpdata_len;
-
-	return count;
-}
-
-static struct bin_attribute sys_reipl_nvme_scp_data_attr =
-	__BIN_ATTR(scp_data, 0644, reipl_nvme_scpdata_read,
-		   reipl_nvme_scpdata_write, DIAG308_SCPDATA_SIZE);
+DEFINE_IPL_ATTR_SCP_DATA_RW(reipl_nvme, reipl_block_nvme->hdr,
+			    reipl_block_nvme->nvme,
+			    IPL_BP_NVME_LEN, IPL_BP0_NVME_LEN,
+			    DIAG308_SCPDATA_SIZE);
 
 static struct bin_attribute *reipl_nvme_bin_attrs[] = {
 	&sys_reipl_nvme_scp_data_attr,
@@ -1067,44 +1026,10 @@ static struct attribute_group reipl_ccw_attr_group_lpar = {
 
 /* ECKD reipl device attributes */
 
-static ssize_t reipl_eckd_scpdata_read(struct file *filp, struct kobject *kobj,
-				       struct bin_attribute *attr,
-				       char *buf, loff_t off, size_t count)
-{
-	size_t size = reipl_block_eckd->eckd.scp_data_len;
-	void *scp_data = reipl_block_eckd->eckd.scp_data;
-
-	return memory_read_from_buffer(buf, count, &off, scp_data, size);
-}
-
-static ssize_t reipl_eckd_scpdata_write(struct file *filp, struct kobject *kobj,
-					struct bin_attribute *attr,
-					char *buf, loff_t off, size_t count)
-{
-	size_t scpdata_len = count;
-	size_t padding;
-
-	if (off)
-		return -EINVAL;
-
-	memcpy(reipl_block_eckd->eckd.scp_data, buf, count);
-	if (scpdata_len % 8) {
-		padding = 8 - (scpdata_len % 8);
-		memset(reipl_block_eckd->eckd.scp_data + scpdata_len,
-		       0, padding);
-		scpdata_len += padding;
-	}
-
-	reipl_block_eckd->hdr.len = IPL_BP_ECKD_LEN + scpdata_len;
-	reipl_block_eckd->eckd.len = IPL_BP0_ECKD_LEN + scpdata_len;
-	reipl_block_eckd->eckd.scp_data_len = scpdata_len;
-
-	return count;
-}
-
-static struct bin_attribute sys_reipl_eckd_scp_data_attr =
-	__BIN_ATTR(scp_data, 0644, reipl_eckd_scpdata_read,
-		   reipl_eckd_scpdata_write, DIAG308_SCPDATA_SIZE);
+DEFINE_IPL_ATTR_SCP_DATA_RW(reipl_eckd, reipl_block_eckd->hdr,
+			    reipl_block_eckd->eckd,
+			    IPL_BP_ECKD_LEN, IPL_BP0_ECKD_LEN,
+			    DIAG308_SCPDATA_SIZE);
 
 static struct bin_attribute *reipl_eckd_bin_attrs[] = {
 	&sys_reipl_eckd_scp_data_attr,
@@ -1209,8 +1134,8 @@ static struct attribute_group reipl_nss_attr_group = {
 
 void set_os_info_reipl_block(void)
 {
-	os_info_entry_add(OS_INFO_REIPL_BLOCK, reipl_block_actual,
-			  reipl_block_actual->hdr.len);
+	os_info_entry_add_data(OS_INFO_REIPL_BLOCK, reipl_block_actual,
+			       reipl_block_actual->hdr.len);
 }
 
 /* reipl type */
@@ -1648,6 +1573,11 @@ DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n",
 DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n",
 		   dump_block_fcp->fcp.devno);
 
+DEFINE_IPL_ATTR_SCP_DATA_RW(dump_fcp, dump_block_fcp->hdr,
+			    dump_block_fcp->fcp,
+			    IPL_BP_FCP_LEN, IPL_BP0_FCP_LEN,
+			    DIAG308_SCPDATA_SIZE);
+
 static struct attribute *dump_fcp_attrs[] = {
 	&sys_dump_fcp_device_attr.attr,
 	&sys_dump_fcp_wwpn_attr.attr,
@@ -1657,9 +1587,15 @@ static struct attribute *dump_fcp_attrs[] = {
 	NULL,
 };
 
+static struct bin_attribute *dump_fcp_bin_attrs[] = {
+	&sys_dump_fcp_scp_data_attr,
+	NULL,
+};
+
 static struct attribute_group dump_fcp_attr_group = {
 	.name  = IPL_FCP_STR,
 	.attrs = dump_fcp_attrs,
+	.bin_attrs = dump_fcp_bin_attrs,
 };
 
 /* NVME dump device attributes */
@@ -1672,6 +1608,11 @@ DEFINE_IPL_ATTR_RW(dump_nvme, bootprog, "%lld\n", "%llx\n",
 DEFINE_IPL_ATTR_RW(dump_nvme, br_lba, "%lld\n", "%llx\n",
 		   dump_block_nvme->nvme.br_lba);
 
+DEFINE_IPL_ATTR_SCP_DATA_RW(dump_nvme, dump_block_nvme->hdr,
+			    dump_block_nvme->nvme,
+			    IPL_BP_NVME_LEN, IPL_BP0_NVME_LEN,
+			    DIAG308_SCPDATA_SIZE);
+
 static struct attribute *dump_nvme_attrs[] = {
 	&sys_dump_nvme_fid_attr.attr,
 	&sys_dump_nvme_nsid_attr.attr,
@@ -1680,9 +1621,15 @@ static struct attribute *dump_nvme_attrs[] = {
 	NULL,
 };
 
+static struct bin_attribute *dump_nvme_bin_attrs[] = {
+	&sys_dump_nvme_scp_data_attr,
+	NULL,
+};
+
 static struct attribute_group dump_nvme_attr_group = {
 	.name  = IPL_NVME_STR,
 	.attrs = dump_nvme_attrs,
+	.bin_attrs = dump_nvme_bin_attrs,
 };
 
 /* ECKD dump device attributes */
@@ -1696,6 +1643,11 @@ IPL_ATTR_BR_CHR_STORE_FN(dump, dump_block_eckd->eckd);
 static struct kobj_attribute sys_dump_eckd_br_chr_attr =
 	__ATTR(br_chr, 0644, eckd_dump_br_chr_show, eckd_dump_br_chr_store);
 
+DEFINE_IPL_ATTR_SCP_DATA_RW(dump_eckd, dump_block_eckd->hdr,
+			    dump_block_eckd->eckd,
+			    IPL_BP_ECKD_LEN, IPL_BP0_ECKD_LEN,
+			    DIAG308_SCPDATA_SIZE);
+
 static struct attribute *dump_eckd_attrs[] = {
 	&sys_dump_eckd_device_attr.attr,
 	&sys_dump_eckd_bootprog_attr.attr,
@@ -1703,9 +1655,15 @@ static struct attribute *dump_eckd_attrs[] = {
 	NULL,
 };
 
+static struct bin_attribute *dump_eckd_bin_attrs[] = {
+	&sys_dump_eckd_scp_data_attr,
+	NULL,
+};
+
 static struct attribute_group dump_eckd_attr_group = {
 	.name  = IPL_ECKD_STR,
 	.attrs = dump_eckd_attrs,
+	.bin_attrs = dump_eckd_bin_attrs,
 };
 
 /* CCW dump device attributes */
@@ -1940,7 +1898,7 @@ static void dump_reipl_run(struct shutdown_trigger *trigger)
 	    reipl_type == IPL_TYPE_NSS ||
 	    reipl_type == IPL_TYPE_UNKNOWN)
 		os_info_flags |= OS_INFO_FLAG_REIPL_CLEAR;
-	os_info_entry_add(OS_INFO_FLAGS_ENTRY, &os_info_flags, sizeof(os_info_flags));
+	os_info_entry_add_data(OS_INFO_FLAGS_ENTRY, &os_info_flags, sizeof(os_info_flags));
 	csum = (__force unsigned int)cksm(reipl_block_actual, reipl_block_actual->hdr.len, 0);
 	abs_lc = get_abs_lowcore();
 	abs_lc->ipib = __pa(reipl_block_actual);
@@ -1958,11 +1916,13 @@ static struct shutdown_action __refdata dump_reipl_action = {
  * vmcmd shutdown action: Trigger vm command on shutdown.
  */
 
-static char vmcmd_on_reboot[128];
-static char vmcmd_on_panic[128];
-static char vmcmd_on_halt[128];
-static char vmcmd_on_poff[128];
-static char vmcmd_on_restart[128];
+#define VMCMD_MAX_SIZE	240
+
+static char vmcmd_on_reboot[VMCMD_MAX_SIZE + 1];
+static char vmcmd_on_panic[VMCMD_MAX_SIZE + 1];
+static char vmcmd_on_halt[VMCMD_MAX_SIZE + 1];
+static char vmcmd_on_poff[VMCMD_MAX_SIZE + 1];
+static char vmcmd_on_restart[VMCMD_MAX_SIZE + 1];
 
 DEFINE_IPL_ATTR_STR_RW(vmcmd, on_reboot, "%s\n", "%s\n", vmcmd_on_reboot);
 DEFINE_IPL_ATTR_STR_RW(vmcmd, on_panic, "%s\n", "%s\n", vmcmd_on_panic);
@@ -2288,8 +2248,8 @@ static int __init vmcmd_on_reboot_setup(char *str)
 {
 	if (!MACHINE_IS_VM)
 		return 1;
-	strncpy_skip_quote(vmcmd_on_reboot, str, 127);
-	vmcmd_on_reboot[127] = 0;
+	strncpy_skip_quote(vmcmd_on_reboot, str, VMCMD_MAX_SIZE);
+	vmcmd_on_reboot[VMCMD_MAX_SIZE] = 0;
 	on_reboot_trigger.action = &vmcmd_action;
 	return 1;
 }
@@ -2299,8 +2259,8 @@ static int __init vmcmd_on_panic_setup(char *str)
 {
 	if (!MACHINE_IS_VM)
 		return 1;
-	strncpy_skip_quote(vmcmd_on_panic, str, 127);
-	vmcmd_on_panic[127] = 0;
+	strncpy_skip_quote(vmcmd_on_panic, str, VMCMD_MAX_SIZE);
+	vmcmd_on_panic[VMCMD_MAX_SIZE] = 0;
 	on_panic_trigger.action = &vmcmd_action;
 	return 1;
 }
@@ -2310,8 +2270,8 @@ static int __init vmcmd_on_halt_setup(char *str)
 {
 	if (!MACHINE_IS_VM)
 		return 1;
-	strncpy_skip_quote(vmcmd_on_halt, str, 127);
-	vmcmd_on_halt[127] = 0;
+	strncpy_skip_quote(vmcmd_on_halt, str, VMCMD_MAX_SIZE);
+	vmcmd_on_halt[VMCMD_MAX_SIZE] = 0;
 	on_halt_trigger.action = &vmcmd_action;
 	return 1;
 }
@@ -2321,8 +2281,8 @@ static int __init vmcmd_on_poff_setup(char *str)
 {
 	if (!MACHINE_IS_VM)
 		return 1;
-	strncpy_skip_quote(vmcmd_on_poff, str, 127);
-	vmcmd_on_poff[127] = 0;
+	strncpy_skip_quote(vmcmd_on_poff, str, VMCMD_MAX_SIZE);
+	vmcmd_on_poff[VMCMD_MAX_SIZE] = 0;
 	on_poff_trigger.action = &vmcmd_action;
 	return 1;
 }
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 6f71b0ce10..9acc6630ab 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -29,6 +29,7 @@
 #include <asm/hw_irq.h>
 #include <asm/stacktrace.h>
 #include <asm/softirq_stack.h>
+#include <asm/vtime.h>
 #include "entry.h"
 
 DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
@@ -150,6 +151,7 @@ void noinstr do_io_irq(struct pt_regs *regs)
 	if (from_idle)
 		account_idle_time_irq();
 
+	set_cpu_flag(CIF_NOHZ_DELAY);
 	do {
 		regs->tpi_info = S390_lowcore.tpi_info;
 		if (S390_lowcore.tpi_info.adapter_IO)
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index f0cf20d4b3..05c83505e9 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -9,7 +9,6 @@
 
 #define pr_fmt(fmt) "kprobes: " fmt
 
-#include <linux/moduleloader.h>
 #include <linux/kprobes.h>
 #include <linux/ptrace.h>
 #include <linux/preempt.h>
@@ -21,10 +20,10 @@
 #include <linux/slab.h>
 #include <linux/hardirq.h>
 #include <linux/ftrace.h>
+#include <linux/execmem.h>
 #include <asm/set_memory.h>
 #include <asm/sections.h>
 #include <asm/dis.h>
-#include "kprobes.h"
 #include "entry.h"
 
 DEFINE_PER_CPU(struct kprobe *, current_kprobe);
@@ -32,39 +31,17 @@ DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
 struct kretprobe_blackpoint kretprobe_blacklist[] = { };
 
-static int insn_page_in_use;
-
 void *alloc_insn_page(void)
 {
 	void *page;
 
-	page = module_alloc(PAGE_SIZE);
+	page = execmem_alloc(EXECMEM_KPROBES, PAGE_SIZE);
 	if (!page)
 		return NULL;
 	set_memory_rox((unsigned long)page, 1);
 	return page;
 }
 
-static void *alloc_s390_insn_page(void)
-{
-	if (xchg(&insn_page_in_use, 1) == 1)
-		return NULL;
-	return &kprobes_insn_page;
-}
-
-static void free_s390_insn_page(void *page)
-{
-	xchg(&insn_page_in_use, 0);
-}
-
-struct kprobe_insn_cache kprobe_s390_insn_slots = {
-	.mutex = __MUTEX_INITIALIZER(kprobe_s390_insn_slots.mutex),
-	.alloc = alloc_s390_insn_page,
-	.free = free_s390_insn_page,
-	.pages = LIST_HEAD_INIT(kprobe_s390_insn_slots.pages),
-	.insn_size = MAX_INSN_SIZE,
-};
-
 static void copy_instruction(struct kprobe *p)
 {
 	kprobe_opcode_t insn[MAX_INSN_SIZE];
@@ -78,10 +55,10 @@ static void copy_instruction(struct kprobe *p)
 	if (probe_is_insn_relative_long(&insn[0])) {
 		/*
 		 * For pc-relative instructions in RIL-b or RIL-c format patch
-		 * the RI2 displacement field. We have already made sure that
-		 * the insn slot for the patched instruction is within the same
-		 * 2GB area as the original instruction (either kernel image or
-		 * module area). Therefore the new displacement will always fit.
+		 * the RI2 displacement field. The insn slot for the to be
+		 * patched instruction is within the same 4GB area like the
+		 * original instruction. Therefore the new displacement will
+		 * always fit.
 		 */
 		disp = *(s32 *)&insn[1];
 		addr = (u64)(unsigned long)p->addr;
@@ -93,34 +70,6 @@ static void copy_instruction(struct kprobe *p)
 }
 NOKPROBE_SYMBOL(copy_instruction);
 
-static int s390_get_insn_slot(struct kprobe *p)
-{
-	/*
-	 * Get an insn slot that is within the same 2GB area like the original
-	 * instruction. That way instructions with a 32bit signed displacement
-	 * field can be patched and executed within the insn slot.
-	 */
-	p->ainsn.insn = NULL;
-	if (is_kernel((unsigned long)p->addr))
-		p->ainsn.insn = get_s390_insn_slot();
-	else if (is_module_addr(p->addr))
-		p->ainsn.insn = get_insn_slot();
-	return p->ainsn.insn ? 0 : -ENOMEM;
-}
-NOKPROBE_SYMBOL(s390_get_insn_slot);
-
-static void s390_free_insn_slot(struct kprobe *p)
-{
-	if (!p->ainsn.insn)
-		return;
-	if (is_kernel((unsigned long)p->addr))
-		free_s390_insn_slot(p->ainsn.insn, 0);
-	else
-		free_insn_slot(p->ainsn.insn, 0);
-	p->ainsn.insn = NULL;
-}
-NOKPROBE_SYMBOL(s390_free_insn_slot);
-
 /* Check if paddr is at an instruction boundary */
 static bool can_probe(unsigned long paddr)
 {
@@ -174,7 +123,8 @@ int arch_prepare_kprobe(struct kprobe *p)
 	/* Make sure the probe isn't going on a difficult instruction */
 	if (probe_is_prohibited_opcode(p->addr))
 		return -EINVAL;
-	if (s390_get_insn_slot(p))
+	p->ainsn.insn = get_insn_slot();
+	if (!p->ainsn.insn)
 		return -ENOMEM;
 	copy_instruction(p);
 	return 0;
@@ -216,7 +166,10 @@ NOKPROBE_SYMBOL(arch_disarm_kprobe);
 
 void arch_remove_kprobe(struct kprobe *p)
 {
-	s390_free_insn_slot(p);
+	if (!p->ainsn.insn)
+		return;
+	free_insn_slot(p->ainsn.insn, 0);
+	p->ainsn.insn = NULL;
 }
 NOKPROBE_SYMBOL(arch_remove_kprobe);
 
diff --git a/arch/s390/kernel/kprobes.h b/arch/s390/kernel/kprobes.h
deleted file mode 100644
index dc3ed5098e..0000000000
--- a/arch/s390/kernel/kprobes.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-#ifndef _ARCH_S390_KPROBES_H
-#define _ARCH_S390_KPROBES_H
-
-#include <linux/kprobes.h>
-
-DEFINE_INSN_CACHE_OPS(s390_insn);
-
-#endif
diff --git a/arch/s390/kernel/kprobes_insn_page.S b/arch/s390/kernel/kprobes_insn_page.S
deleted file mode 100644
index 0fe4d725e9..0000000000
--- a/arch/s390/kernel/kprobes_insn_page.S
+++ /dev/null
@@ -1,22 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-
-#include <linux/linkage.h>
-
-/*
- * insn_page is a special 4k aligned dummy function for kprobes.
- * It will contain all kprobed instructions that are out-of-line executed.
- * The page must be within the kernel image to guarantee that the
- * out-of-line instructions are within 2GB distance of their original
- * location. Using a dummy function ensures that the insn_page is within
- * the text section of the kernel and mapped read-only/executable from
- * the beginning on, thus avoiding to split large mappings if the page
- * would be in the data section instead.
- */
-	.section .kprobes.text, "ax"
-	.balign 4096
-SYM_CODE_START(kprobes_insn_page)
-	.rept 2048
-	.word 0x07fe
-	.endr
-SYM_CODE_END(kprobes_insn_page)
-	.previous
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 42215f9404..91e207b503 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -21,6 +21,7 @@
 #include <linux/moduleloader.h>
 #include <linux/bug.h>
 #include <linux/memory.h>
+#include <linux/execmem.h>
 #include <asm/alternative.h>
 #include <asm/nospec-branch.h>
 #include <asm/facility.h>
@@ -36,47 +37,10 @@
 
 #define PLT_ENTRY_SIZE 22
 
-static unsigned long get_module_load_offset(void)
-{
-	static DEFINE_MUTEX(module_kaslr_mutex);
-	static unsigned long module_load_offset;
-
-	if (!kaslr_enabled())
-		return 0;
-	/*
-	 * Calculate the module_load_offset the first time this code
-	 * is called. Once calculated it stays the same until reboot.
-	 */
-	mutex_lock(&module_kaslr_mutex);
-	if (!module_load_offset)
-		module_load_offset = get_random_u32_inclusive(1, 1024) * PAGE_SIZE;
-	mutex_unlock(&module_kaslr_mutex);
-	return module_load_offset;
-}
-
-void *module_alloc(unsigned long size)
-{
-	gfp_t gfp_mask = GFP_KERNEL;
-	void *p;
-
-	if (PAGE_ALIGN(size) > MODULES_LEN)
-		return NULL;
-	p = __vmalloc_node_range(size, MODULE_ALIGN,
-				 MODULES_VADDR + get_module_load_offset(),
-				 MODULES_END, gfp_mask, PAGE_KERNEL,
-				 VM_FLUSH_RESET_PERMS | VM_DEFER_KMEMLEAK,
-				 NUMA_NO_NODE, __builtin_return_address(0));
-	if (p && (kasan_alloc_module_shadow(p, size, gfp_mask) < 0)) {
-		vfree(p);
-		return NULL;
-	}
-	return p;
-}
-
 #ifdef CONFIG_FUNCTION_TRACER
 void module_arch_cleanup(struct module *mod)
 {
-	module_memfree(mod->arch.trampolines_start);
+	execmem_free(mod->arch.trampolines_start);
 }
 #endif
 
@@ -510,7 +474,7 @@ static int module_alloc_ftrace_hotpatch_trampolines(struct module *me,
 
 	size = FTRACE_HOTPATCH_TRAMPOLINES_SIZE(s->sh_size);
 	numpages = DIV_ROUND_UP(size, PAGE_SIZE);
-	start = module_alloc(numpages * PAGE_SIZE);
+	start = execmem_alloc(EXECMEM_FTRACE, numpages * PAGE_SIZE);
 	if (!start)
 		return -ENOMEM;
 	set_memory_rox((unsigned long)start, numpages);
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index c77382a673..230d010bac 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -31,6 +31,7 @@
 #include <asm/crw.h>
 #include <asm/asm-offsets.h>
 #include <asm/pai.h>
+#include <asm/vtime.h>
 
 struct mcck_struct {
 	unsigned int kill_task : 1;
diff --git a/arch/s390/kernel/nospec-branch.c b/arch/s390/kernel/nospec-branch.c
index d1b16d83e4..9b8c24ebb0 100644
--- a/arch/s390/kernel/nospec-branch.c
+++ b/arch/s390/kernel/nospec-branch.c
@@ -114,10 +114,10 @@ static void __init_or_module __nospec_revert(s32 *start, s32 *end)
 			type = BRASL_EXPOLINE;	/* brasl instruction */
 		else
 			continue;
-		thunk = instr + (*(int *)(instr + 2)) * 2;
+		thunk = instr + (long)(*(int *)(instr + 2)) * 2;
 		if (thunk[0] == 0xc6 && thunk[1] == 0x00)
 			/* exrl %r0,<target-br> */
-			br = thunk + (*(int *)(thunk + 2)) * 2;
+			br = thunk + (long)(*(int *)(thunk + 2)) * 2;
 		else
 			continue;
 		if (br[0] != 0x07 || (br[1] & 0xf0) != 0xf0)
diff --git a/arch/s390/kernel/os_info.c b/arch/s390/kernel/os_info.c
index a801e6bd53..b695f980bb 100644
--- a/arch/s390/kernel/os_info.c
+++ b/arch/s390/kernel/os_info.c
@@ -15,8 +15,10 @@
 #include <asm/checksum.h>
 #include <asm/abs_lowcore.h>
 #include <asm/os_info.h>
+#include <asm/physmem_info.h>
 #include <asm/maccess.h>
 #include <asm/asm-offsets.h>
+#include <asm/ipl.h>
 
 /*
  * OS info structure has to be page aligned
@@ -43,9 +45,9 @@ void os_info_crashkernel_add(unsigned long base, unsigned long size)
 }
 
 /*
- * Add OS info entry and update checksum
+ * Add OS info data entry and update checksum
  */
-void os_info_entry_add(int nr, void *ptr, u64 size)
+void os_info_entry_add_data(int nr, void *ptr, u64 size)
 {
 	os_info.entry[nr].addr = __pa(ptr);
 	os_info.entry[nr].size = size;
@@ -54,15 +56,36 @@ void os_info_entry_add(int nr, void *ptr, u64 size)
 }
 
 /*
+ * Add OS info value entry and update checksum
+ */
+void os_info_entry_add_val(int nr, u64 value)
+{
+	os_info.entry[nr].val = value;
+	os_info.entry[nr].size = 0;
+	os_info.entry[nr].csum = 0;
+	os_info.csum = os_info_csum(&os_info);
+}
+
+/*
  * Initialize OS info structure and set lowcore pointer
  */
 void __init os_info_init(void)
 {
 	struct lowcore *abs_lc;
 
+	BUILD_BUG_ON(sizeof(struct os_info) != PAGE_SIZE);
 	os_info.version_major = OS_INFO_VERSION_MAJOR;
 	os_info.version_minor = OS_INFO_VERSION_MINOR;
 	os_info.magic = OS_INFO_MAGIC;
+	os_info_entry_add_val(OS_INFO_IDENTITY_BASE, __identity_base);
+	os_info_entry_add_val(OS_INFO_KASLR_OFFSET, kaslr_offset());
+	os_info_entry_add_val(OS_INFO_KASLR_OFF_PHYS, __kaslr_offset_phys);
+	os_info_entry_add_val(OS_INFO_VMEMMAP, (unsigned long)vmemmap);
+	os_info_entry_add_val(OS_INFO_AMODE31_START, AMODE31_START);
+	os_info_entry_add_val(OS_INFO_AMODE31_END, AMODE31_END);
+	os_info_entry_add_val(OS_INFO_IMAGE_START, (unsigned long)_stext);
+	os_info_entry_add_val(OS_INFO_IMAGE_END, (unsigned long)_end);
+	os_info_entry_add_val(OS_INFO_IMAGE_PHYS, __pa_symbol(_stext));
 	os_info.csum = os_info_csum(&os_info);
 	abs_lc = get_abs_lowcore();
 	abs_lc->os_info = __pa(&os_info);
@@ -125,7 +148,7 @@ static void os_info_old_init(void)
 
 	if (os_info_init)
 		return;
-	if (!oldmem_data.start)
+	if (!oldmem_data.start && !is_ipl_type_dump())
 		goto fail;
 	if (copy_oldmem_kernel(&addr, __LC_OS_INFO, sizeof(addr)))
 		goto fail;
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 41ed6e0f0a..6968be98af 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -428,7 +428,7 @@ static void cpum_cf_make_setsize(enum cpumf_ctr_set ctrset)
 	case CPUMF_CTR_SET_CRYPTO:
 		if (cpumf_ctr_info.csvn >= 1 && cpumf_ctr_info.csvn <= 5)
 			ctrset_size = 16;
-		else if (cpumf_ctr_info.csvn == 6 || cpumf_ctr_info.csvn == 7)
+		else if (cpumf_ctr_info.csvn >= 6)
 			ctrset_size = 20;
 		break;
 	case CPUMF_CTR_SET_EXT:
@@ -556,25 +556,31 @@ static int cfdiag_diffctr(struct cpu_cf_events *cpuhw, unsigned long auth)
 	struct cf_trailer_entry *trailer_start, *trailer_stop;
 	struct cf_ctrset_entry *ctrstart, *ctrstop;
 	size_t offset = 0;
+	int i;
 
-	auth &= (1 << CPUMF_LCCTL_ENABLE_SHIFT) - 1;
-	do {
+	for (i = CPUMF_CTR_SET_BASIC; i < CPUMF_CTR_SET_MAX; ++i) {
 		ctrstart = (struct cf_ctrset_entry *)(cpuhw->start + offset);
 		ctrstop = (struct cf_ctrset_entry *)(cpuhw->stop + offset);
 
+		/* Counter set not authorized */
+		if (!(auth & cpumf_ctr_ctl[i]))
+			continue;
+		/* Counter set size zero was not saved */
+		if (!cpum_cf_read_setsize(i))
+			continue;
+
 		if (memcmp(ctrstop, ctrstart, sizeof(*ctrstop))) {
 			pr_err_once("cpum_cf_diag counter set compare error "
 				    "in set %i\n", ctrstart->set);
 			return 0;
 		}
-		auth &= ~cpumf_ctr_ctl[ctrstart->set];
 		if (ctrstart->def == CF_DIAG_CTRSET_DEF) {
 			cfdiag_diffctrset((u64 *)(ctrstart + 1),
 					  (u64 *)(ctrstop + 1), ctrstart->ctr);
 			offset += ctrstart->ctr * sizeof(u64) +
 							sizeof(*ctrstart);
 		}
-	} while (ctrstart->def && auth);
+	}
 
 	/* Save time_stamp from start of event in stop's trailer */
 	trailer_start = (struct cf_trailer_entry *)(cpuhw->start + offset);
diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
index 0d64aafd15..e4a6bfc910 100644
--- a/arch/s390/kernel/perf_cpum_cf_events.c
+++ b/arch/s390/kernel/perf_cpum_cf_events.c
@@ -855,16 +855,11 @@ __init const struct attribute_group **cpumf_cf_event_group(void)
 	}
 
 	/* Determine version specific crypto set */
-	switch (ci.csvn) {
-	case 1 ... 5:
+	csvn = none;
+	if (ci.csvn >= 1 && ci.csvn <= 5)
 		csvn = cpumcf_svn_12345_pmu_event_attr;
-		break;
-	case 6 ... 7:
+	else if (ci.csvn >= 6)
 		csvn = cpumcf_svn_67_pmu_event_attr;
-		break;
-	default:
-		csvn = none;
-	}
 
 	/* Determine model-specific counter set(s) */
 	get_cpu_id(&cpu_id);
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index dd456b4758..d8740631df 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -86,11 +86,6 @@ void arch_release_task_struct(struct task_struct *tsk)
 
 int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 {
-	/*
-	 * Save the floating-point or vector register state of the current
-	 * task and set the TIF_FPU flag to lazy restore the FPU register
-	 * state when returning to user space.
-	 */
 	save_user_fpu_regs();
 
 	*dst = *src;
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 7ecd27c62d..610e6f7945 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -146,10 +146,10 @@ static u32 __amode31_ref *__ctl_linkage_stack = __ctl_linkage_stack_amode31;
 static u32 __amode31_ref *__ctl_duct = __ctl_duct_amode31;
 
 unsigned long __bootdata_preserved(max_mappable);
-unsigned long __bootdata(ident_map_size);
 struct physmem_info __bootdata(physmem_info);
 
-unsigned long __bootdata_preserved(__kaslr_offset);
+struct vm_layout __bootdata_preserved(vm_layout);
+EXPORT_SYMBOL(vm_layout);
 int __bootdata_preserved(__kaslr_enabled);
 unsigned int __bootdata_preserved(zlib_dfltcc_support);
 EXPORT_SYMBOL(zlib_dfltcc_support);
@@ -765,7 +765,7 @@ static void __init relocate_amode31_section(void)
 	unsigned long amode31_size = __eamode31 - __samode31;
 	long amode31_offset, *ptr;
 
-	amode31_offset = physmem_info.reserved[RR_AMODE31].start - (unsigned long)__samode31;
+	amode31_offset = AMODE31_START - (unsigned long)__samode31;
 	pr_info("Relocating AMODE31 section of size 0x%08lx\n", amode31_size);
 
 	/* Move original AMODE31 section to the new one */
diff --git a/arch/s390/kernel/syscall.c b/arch/s390/kernel/syscall.c
index dc2355c623..50cbcbbaa0 100644
--- a/arch/s390/kernel/syscall.c
+++ b/arch/s390/kernel/syscall.c
@@ -38,33 +38,6 @@
 
 #include "entry.h"
 
-/*
- * Perform the mmap() system call. Linux for S/390 isn't able to handle more
- * than 5 system call parameters, so this system call uses a memory block
- * for parameter passing.
- */
-
-struct s390_mmap_arg_struct {
-	unsigned long addr;
-	unsigned long len;
-	unsigned long prot;
-	unsigned long flags;
-	unsigned long fd;
-	unsigned long offset;
-};
-
-SYSCALL_DEFINE1(mmap2, struct s390_mmap_arg_struct __user *, arg)
-{
-	struct s390_mmap_arg_struct a;
-	int error = -EFAULT;
-
-	if (copy_from_user(&a, arg, sizeof(a)))
-		goto out;
-	error = ksys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
-out:
-	return error;
-}
-
 #ifdef CONFIG_SYSVIPC
 /*
  * sys_ipc() is the de-multiplexer for the SysV IPC calls.
diff --git a/arch/s390/kernel/syscalls/Makefile b/arch/s390/kernel/syscalls/Makefile
index fb85e79794..1bb78b9468 100644
--- a/arch/s390/kernel/syscalls/Makefile
+++ b/arch/s390/kernel/syscalls/Makefile
@@ -4,8 +4,8 @@ gen	:= arch/$(ARCH)/include/generated
 kapi	:= $(gen)/asm
 uapi	:= $(gen)/uapi/asm
 
-syscall	:= $(srctree)/$(src)/syscall.tbl
-systbl	:= $(srctree)/$(src)/syscalltbl
+syscall	:= $(src)/syscall.tbl
+systbl	:= $(src)/syscalltbl
 
 gen-y := $(kapi)/syscall_table.h
 kapi-hdrs-y := $(kapi)/unistd_nr.h
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 07a942cab8..0107118276 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -464,3 +464,4 @@
 459  common	lsm_get_self_attr	sys_lsm_get_self_attr		sys_lsm_get_self_attr
 460  common	lsm_set_self_attr	sys_lsm_set_self_attr		sys_lsm_set_self_attr
 461  common	lsm_list_modules	sys_lsm_list_modules		sys_lsm_list_modules
+462  common	mseal			sys_mseal			sys_mseal
diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
index fc07bc39e6..016993e9eb 100644
--- a/arch/s390/kernel/uv.c
+++ b/arch/s390/kernel/uv.c
@@ -21,6 +21,7 @@
 /* the bootdata_preserved fields come from ones in arch/s390/boot/uv.c */
 #ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
 int __bootdata_preserved(prot_virt_guest);
+EXPORT_SYMBOL(prot_virt_guest);
 #endif
 
 /*
@@ -181,36 +182,36 @@ int uv_convert_owned_from_secure(unsigned long paddr)
 }
 
 /*
- * Calculate the expected ref_count for a page that would otherwise have no
+ * Calculate the expected ref_count for a folio that would otherwise have no
  * further pins. This was cribbed from similar functions in other places in
  * the kernel, but with some slight modifications. We know that a secure
- * page can not be a huge page for example.
+ * folio can not be a large folio, for example.
  */
-static int expected_page_refs(struct page *page)
+static int expected_folio_refs(struct folio *folio)
 {
 	int res;
 
-	res = page_mapcount(page);
-	if (PageSwapCache(page)) {
+	res = folio_mapcount(folio);
+	if (folio_test_swapcache(folio)) {
 		res++;
-	} else if (page_mapping(page)) {
+	} else if (folio_mapping(folio)) {
 		res++;
-		if (page_has_private(page))
+		if (folio->private)
 			res++;
 	}
 	return res;
 }
 
-static int make_page_secure(struct page *page, struct uv_cb_header *uvcb)
+static int make_folio_secure(struct folio *folio, struct uv_cb_header *uvcb)
 {
 	int expected, cc = 0;
 
-	if (PageWriteback(page))
+	if (folio_test_writeback(folio))
 		return -EAGAIN;
-	expected = expected_page_refs(page);
-	if (!page_ref_freeze(page, expected))
+	expected = expected_folio_refs(folio);
+	if (!folio_ref_freeze(folio, expected))
 		return -EBUSY;
-	set_bit(PG_arch_1, &page->flags);
+	set_bit(PG_arch_1, &folio->flags);
 	/*
 	 * If the UVC does not succeed or fail immediately, we don't want to
 	 * loop for long, or we might get stall notifications.
@@ -220,9 +221,9 @@ static int make_page_secure(struct page *page, struct uv_cb_header *uvcb)
 	 * -EAGAIN and we let the callers deal with it.
 	 */
 	cc = __uv_call(0, (u64)uvcb);
-	page_ref_unfreeze(page, expected);
+	folio_ref_unfreeze(folio, expected);
 	/*
-	 * Return -ENXIO if the page was not mapped, -EINVAL for other errors.
+	 * Return -ENXIO if the folio was not mapped, -EINVAL for other errors.
 	 * If busy or partially completed, return -EAGAIN.
 	 */
 	if (cc == UVC_CC_OK)
@@ -277,7 +278,7 @@ int gmap_make_secure(struct gmap *gmap, unsigned long gaddr, void *uvcb)
 	bool local_drain = false;
 	spinlock_t *ptelock;
 	unsigned long uaddr;
-	struct page *page;
+	struct folio *folio;
 	pte_t *ptep;
 	int rc;
 
@@ -306,15 +307,26 @@ again:
 	if (!ptep)
 		goto out;
 	if (pte_present(*ptep) && !(pte_val(*ptep) & _PAGE_INVALID) && pte_write(*ptep)) {
-		page = pte_page(*ptep);
+		folio = page_folio(pte_page(*ptep));
+		rc = -EINVAL;
+		if (folio_test_large(folio))
+			goto unlock;
 		rc = -EAGAIN;
-		if (trylock_page(page)) {
+		if (folio_trylock(folio)) {
 			if (should_export_before_import(uvcb, gmap->mm))
-				uv_convert_from_secure(page_to_phys(page));
-			rc = make_page_secure(page, uvcb);
-			unlock_page(page);
+				uv_convert_from_secure(PFN_PHYS(folio_pfn(folio)));
+			rc = make_folio_secure(folio, uvcb);
+			folio_unlock(folio);
 		}
+
+		/*
+		 * Once we drop the PTL, the folio may get unmapped and
+		 * freed immediately. We need a temporary reference.
+		 */
+		if (rc == -EAGAIN)
+			folio_get(folio);
 	}
+unlock:
 	pte_unmap_unlock(ptep, ptelock);
 out:
 	mmap_read_unlock(gmap->mm);
@@ -324,10 +336,11 @@ out:
 		 * If we are here because the UVC returned busy or partial
 		 * completion, this is just a useless check, but it is safe.
 		 */
-		wait_on_page_writeback(page);
+		folio_wait_writeback(folio);
+		folio_put(folio);
 	} else if (rc == -EBUSY) {
 		/*
-		 * If we have tried a local drain and the page refcount
+		 * If we have tried a local drain and the folio refcount
 		 * still does not match our expected safe value, try with a
 		 * system wide drain. This is needed if the pagevecs holding
 		 * the page are on a different CPU.
@@ -338,7 +351,7 @@ out:
 			return -EAGAIN;
 		}
 		/*
-		 * We are here if the page refcount does not match the
+		 * We are here if the folio refcount does not match the
 		 * expected safe value. The main culprits are usually
 		 * pagevecs. With lru_add_drain() we drain the pagevecs
 		 * on the local CPU so that hopefully the refcount will
diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
index 4800d80dec..2c5afb88d2 100644
--- a/arch/s390/kernel/vdso32/Makefile
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -1,8 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # List of files in the vdso
 
-KCOV_INSTRUMENT := n
-
 # Include the generic Makefile to check the built vdso.
 include $(srctree)/lib/vdso/Makefile
 obj-vdso32 = vdso_user_wrapper-32.o note-32.o
@@ -34,19 +32,13 @@ obj-y += vdso32_wrapper.o
 targets += vdso32.lds
 CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
 
-# Disable gcov profiling, ubsan and kasan for VDSO code
-GCOV_PROFILE := n
-UBSAN_SANITIZE := n
-KASAN_SANITIZE := n
-KCSAN_SANITIZE := n
-
 # Force dependency (incbin is bad)
 $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
 
 quiet_cmd_vdso_and_check = VDSO    $@
       cmd_vdso_and_check = $(cmd_ld); $(cmd_vdso_check)
 
-$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE
+$(obj)/vdso32.so.dbg: $(obj)/vdso32.lds $(obj-vdso32) FORCE
 	$(call if_changed,vdso_and_check)
 
 # strip rule for the .so file
@@ -64,7 +56,7 @@ quiet_cmd_vdso32cc = VDSO32C $@
       cmd_vdso32cc = $(CC) $(c_flags) -c -o $@ $<
 
 # Generate VDSO offsets using helper script
-gen-vdsosym := $(srctree)/$(src)/gen_vdso_offsets.sh
+gen-vdsosym := $(src)/gen_vdso_offsets.sh
 quiet_cmd_vdsosym = VDSOSYM $@
 	cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@
 
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index 2f2e4e9970..ba19c0ca7c 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -1,8 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # List of files in the vdso
 
-KCOV_INSTRUMENT := n
-
 # Include the generic Makefile to check the built vdso.
 include $(srctree)/lib/vdso/Makefile
 obj-vdso64 = vdso_user_wrapper.o note.o
@@ -39,12 +37,6 @@ obj-y += vdso64_wrapper.o
 targets += vdso64.lds
 CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
 
-# Disable gcov profiling, ubsan and kasan for VDSO code
-GCOV_PROFILE := n
-UBSAN_SANITIZE := n
-KASAN_SANITIZE := n
-KCSAN_SANITIZE := n
-
 # Force dependency (incbin is bad)
 $(obj)/vdso64_wrapper.o : $(obj)/vdso64.so
 
@@ -52,7 +44,7 @@ quiet_cmd_vdso_and_check = VDSO    $@
       cmd_vdso_and_check = $(cmd_ld); $(cmd_vdso_check)
 
 # link rule for the .so file, .lds has to be first
-$(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) $(obj-cvdso64) FORCE
+$(obj)/vdso64.so.dbg: $(obj)/vdso64.lds $(obj-vdso64) $(obj-cvdso64) FORCE
 	$(call if_changed,vdso_and_check)
 
 # strip rule for the .so file
@@ -74,7 +66,7 @@ quiet_cmd_vdso64cc = VDSO64C $@
       cmd_vdso64cc = $(CC) $(c_flags) -c -o $@ $<
 
 # Generate VDSO offsets using helper script
-gen-vdsosym := $(srctree)/$(src)/gen_vdso_offsets.sh
+gen-vdsosym := $(src)/gen_vdso_offsets.sh
 quiet_cmd_vdsosym = VDSOSYM $@
 	cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@
 
diff --git a/arch/s390/kernel/vmcore_info.c b/arch/s390/kernel/vmcore_info.c
index d296dfc221..23f7d7619a 100644
--- a/arch/s390/kernel/vmcore_info.c
+++ b/arch/s390/kernel/vmcore_info.c
@@ -14,7 +14,9 @@ void arch_crash_save_vmcoreinfo(void)
 	VMCOREINFO_LENGTH(lowcore_ptr, NR_CPUS);
 	vmcoreinfo_append_str("SAMODE31=%lx\n", (unsigned long)__samode31);
 	vmcoreinfo_append_str("EAMODE31=%lx\n", (unsigned long)__eamode31);
+	vmcoreinfo_append_str("IDENTITYBASE=%lx\n", __identity_base);
 	vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset());
+	vmcoreinfo_append_str("KERNELOFFPHYS=%lx\n", __kaslr_offset_phys);
 	abs_lc = get_abs_lowcore();
 	abs_lc->vmcore_info = paddr_vmcoreinfo_note();
 	put_abs_lowcore(abs_lc);
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index fb9b32f936..a1ce3925ec 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -39,7 +39,7 @@ PHDRS {
 
 SECTIONS
 {
-	. = 0x100000;
+	. = __START_KERNEL;
 	.text : {
 		_stext = .;		/* Start of text section */
 		_text = .;		/* Text and read-only data */
@@ -183,7 +183,7 @@ SECTIONS
 	.amode31.data : {
 		*(.amode31.data)
 	}
-	. = ALIGN(PAGE_SIZE);
+	. = _samode31 + AMODE31_SIZE;
 	_eamode31 = .;
 
 	/* early.c uses stsi, which requires page aligned data. */
@@ -192,31 +192,6 @@ SECTIONS
 
 	PERCPU_SECTION(0x100)
 
-#ifdef CONFIG_PIE_BUILD
-	.dynsym ALIGN(8) : {
-		__dynsym_start = .;
-		*(.dynsym)
-		__dynsym_end = .;
-	}
-	.rela.dyn ALIGN(8) : {
-		__rela_dyn_start = .;
-		*(.rela*)
-		__rela_dyn_end = .;
-	}
-	.dynamic ALIGN(8) : {
-		*(.dynamic)
-	}
-	.dynstr ALIGN(8) : {
-		*(.dynstr)
-	}
-	.hash ALIGN(8) : {
-		*(.hash)
-	}
-	.gnu.hash ALIGN(8) : {
-		*(.gnu.hash)
-	}
-#endif
-
 	. = ALIGN(PAGE_SIZE);
 	__init_end = .;		/* freed after init ends here */
 
@@ -230,7 +205,6 @@ SECTIONS
 	 * it should match struct vmlinux_info
 	 */
 	.vmlinux.info 0 (INFO) : {
-		QUAD(_stext)					/* default_lma */
 		QUAD(startup_continue)				/* entry */
 		QUAD(__bss_start - _stext)			/* image_size */
 		QUAD(__bss_stop - __bss_start)			/* bss_size */
@@ -239,14 +213,8 @@ SECTIONS
 		QUAD(__boot_data_preserved_start)		/* bootdata_preserved_off */
 		QUAD(__boot_data_preserved_end -
 		     __boot_data_preserved_start)		/* bootdata_preserved_size */
-#ifdef CONFIG_PIE_BUILD
-		QUAD(__dynsym_start)				/* dynsym_start */
-		QUAD(__rela_dyn_start)				/* rela_dyn_start */
-		QUAD(__rela_dyn_end)				/* rela_dyn_end */
-#else
 		QUAD(__got_start)				/* got_start */
 		QUAD(__got_end)					/* got_end */
-#endif
 		QUAD(_eamode31 - _samode31)			/* amode31_size */
 		QUAD(init_mm)
 		QUAD(swapper_pg_dir)
@@ -282,12 +250,10 @@ SECTIONS
 		*(.plt) *(.plt.*) *(.iplt) *(.igot .igot.plt)
 	}
 	ASSERT(SIZEOF(.plt) == 0, "Unexpected run-time procedure linkages detected!")
-#ifndef CONFIG_PIE_BUILD
 	.rela.dyn : {
 		*(.rela.*) *(.rela_*)
 	}
 	ASSERT(SIZEOF(.rela.dyn) == 0, "Unexpected run-time relocations (.rela) detected!")
-#endif
 
 	/* Sections to be discarded */
 	DISCARDS
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 24a18e5ef6..ffc1db0cbf 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -33,14 +33,6 @@ static DEFINE_PER_CPU(u64, mt_scaling_mult) = { 1 };
 static DEFINE_PER_CPU(u64, mt_scaling_div) = { 1 };
 static DEFINE_PER_CPU(u64, mt_scaling_jiffies);
 
-static inline u64 get_vtimer(void)
-{
-	u64 timer;
-
-	asm volatile("stpt %0" : "=Q" (timer));
-	return timer;
-}
-
 static inline void set_vtimer(u64 expires)
 {
 	u64 timer;
@@ -223,7 +215,7 @@ static u64 vtime_delta(void)
 {
 	u64 timer = S390_lowcore.last_update_timer;
 
-	S390_lowcore.last_update_timer = get_vtimer();
+	S390_lowcore.last_update_timer = get_cpu_timer();
 
 	return timer - S390_lowcore.last_update_timer;
 }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 54b5b2565d..4a74effe68 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -5749,6 +5749,9 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
 {
 	gpa_t size;
 
+	if (kvm_is_ucontrol(kvm))
+		return -EINVAL;
+
 	/* When we are protected, we should not change the memory slots */
 	if (kvm_s390_pv_get_handle(kvm))
 		return -EINVAL;
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index b2c9f010f0..c9ecae8306 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -12,6 +12,7 @@
 #include <linux/list.h>
 #include <linux/bitmap.h>
 #include <linux/sched/signal.h>
+#include <linux/io.h>
 
 #include <asm/gmap.h>
 #include <asm/mmu_context.h>
@@ -361,7 +362,7 @@ end:
 	case -EACCES:
 		return set_validity_icpt(scb_s, 0x003CU);
 	}
-	scb_s->crycbd = ((__u32)(__u64) &vsie_page->crycb) | CRYCB_FORMAT2;
+	scb_s->crycbd = (u32)virt_to_phys(&vsie_page->crycb) | CRYCB_FORMAT2;
 	return 0;
 }
 
@@ -1005,7 +1006,7 @@ static int handle_stfle(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
 		if (read_guest_real(vcpu, fac, &vsie_page->fac,
 				    stfle_size() * sizeof(u64)))
 			return set_validity_icpt(scb_s, 0x1090U);
-		scb_s->fac = (__u32)(__u64) &vsie_page->fac;
+		scb_s->fac = (u32)virt_to_phys(&vsie_page->fac);
 	}
 	return 0;
 }
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 90eac15ea6..f43f897d3f 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -23,4 +23,4 @@ obj-$(CONFIG_S390_MODULES_SANITY_TEST_HELPERS) += test_modules_helpers.o
 
 lib-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
 
-obj-$(CONFIG_EXPOLINE_EXTERN) += expoline/
+obj-$(CONFIG_EXPOLINE_EXTERN) += expoline.o
diff --git a/arch/s390/lib/expoline/expoline.S b/arch/s390/lib/expoline.S
index 92ed8409a7..92ed8409a7 100644
--- a/arch/s390/lib/expoline/expoline.S
+++ b/arch/s390/lib/expoline.S
diff --git a/arch/s390/lib/expoline/Makefile b/arch/s390/lib/expoline/Makefile
deleted file mode 100644
index 854631d9cb..0000000000
--- a/arch/s390/lib/expoline/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-
-obj-y += expoline.o
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 063a6ea378..c848966ed1 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -325,7 +325,8 @@ static void do_exception(struct pt_regs *regs, int access)
 		goto lock_mmap;
 	if (!(vma->vm_flags & access)) {
 		vma_end_read(vma);
-		goto lock_mmap;
+		count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+		return handle_fault_error_nolock(regs, SEGV_ACCERR);
 	}
 	fault = handle_mm_fault(vma, address, flags | FAULT_FLAG_VMA_LOCK, regs);
 	if (!(fault & (VM_FAULT_RETRY | VM_FAULT_COMPLETED)))
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index dc3db86e13..2675aab4ac 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -233,16 +233,6 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
 	return (pte_t *) pmdp;
 }
 
-int pmd_huge(pmd_t pmd)
-{
-	return pmd_leaf(pmd);
-}
-
-int pud_huge(pud_t pud)
-{
-	return pud_leaf(pud);
-}
-
 bool __init arch_hugetlb_valid_size(unsigned long size)
 {
 	if (MACHINE_HAS_EDAT1 && size == PMD_SIZE)
@@ -258,14 +248,12 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
 		unsigned long pgoff, unsigned long flags)
 {
 	struct hstate *h = hstate_file(file);
-	struct vm_unmapped_area_info info;
+	struct vm_unmapped_area_info info = {};
 
-	info.flags = 0;
 	info.length = len;
 	info.low_limit = current->mm->mmap_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
-	info.align_offset = 0;
 	return vm_unmapped_area(&info);
 }
 
@@ -274,7 +262,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 		unsigned long pgoff, unsigned long flags)
 {
 	struct hstate *h = hstate_file(file);
-	struct vm_unmapped_area_info info;
+	struct vm_unmapped_area_info info = {};
 	unsigned long addr;
 
 	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
@@ -282,7 +270,6 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 	info.low_limit = PAGE_SIZE;
 	info.high_limit = current->mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
-	info.align_offset = 0;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -328,7 +315,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 			goto check_asce_limit;
 	}
 
-	if (mm->get_unmapped_area == arch_get_unmapped_area)
+	if (!test_bit(MMF_TOPDOWN, &mm->flags))
 		addr = hugetlb_get_unmapped_area_bottomup(file, addr, len,
 				pgoff, flags);
 	else
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index f6391442c0..e769d2726f 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -49,6 +49,7 @@
 #include <asm/uv.h>
 #include <linux/virtio_anchor.h>
 #include <linux/virtio_config.h>
+#include <linux/execmem.h>
 
 pgd_t swapper_pg_dir[PTRS_PER_PGD] __section(".bss..swapper_pg_dir");
 pgd_t invalid_pg_dir[PTRS_PER_PGD] __section(".bss..invalid_pg_dir");
@@ -302,3 +303,32 @@ void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
 	vmem_remove_mapping(start, size);
 }
 #endif /* CONFIG_MEMORY_HOTPLUG */
+
+#ifdef CONFIG_EXECMEM
+static struct execmem_info execmem_info __ro_after_init;
+
+struct execmem_info __init *execmem_arch_setup(void)
+{
+	unsigned long module_load_offset = 0;
+	unsigned long start;
+
+	if (kaslr_enabled())
+		module_load_offset = get_random_u32_inclusive(1, 1024) * PAGE_SIZE;
+
+	start = MODULES_VADDR + module_load_offset;
+
+	execmem_info = (struct execmem_info){
+		.ranges = {
+			[EXECMEM_DEFAULT] = {
+				.flags	= EXECMEM_KASAN_SHADOW,
+				.start	= start,
+				.end	= MODULES_END,
+				.pgprot	= PAGE_KERNEL,
+				.alignment = MODULE_ALIGN,
+			},
+		},
+	};
+
+	return &execmem_info;
+}
+#endif /* CONFIG_EXECMEM */
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index b14fc08876..2067569465 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -86,7 +86,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
-	struct vm_unmapped_area_info info;
+	struct vm_unmapped_area_info info = {};
 
 	if (len > TASK_SIZE - mmap_min_addr)
 		return -ENOMEM;
@@ -102,7 +102,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 			goto check_asce_limit;
 	}
 
-	info.flags = 0;
 	info.length = len;
 	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
@@ -122,7 +121,7 @@ unsigned long arch_get_unmapped_area_topdown(struct file *filp, unsigned long ad
 {
 	struct vm_area_struct *vma;
 	struct mm_struct *mm = current->mm;
-	struct vm_unmapped_area_info info;
+	struct vm_unmapped_area_info info = {};
 
 	/* requested length too big for entire address space */
 	if (len > TASK_SIZE - mmap_min_addr)
@@ -185,10 +184,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
 	 */
 	if (mmap_is_legacy(rlim_stack)) {
 		mm->mmap_base = mmap_base_legacy(random_factor);
-		mm->get_unmapped_area = arch_get_unmapped_area;
+		clear_bit(MMF_TOPDOWN, &mm->flags);
 	} else {
 		mm->mmap_base = mmap_base(random_factor, rlim_stack);
-		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+		set_bit(MMF_TOPDOWN, &mm->flags);
 	}
 }
 
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 85cddf904c..41c714e212 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -13,7 +13,9 @@
 #include <linux/slab.h>
 #include <linux/sort.h>
 #include <asm/page-states.h>
+#include <asm/abs_lowcore.h>
 #include <asm/cacheflush.h>
+#include <asm/maccess.h>
 #include <asm/nospec-branch.h>
 #include <asm/ctlreg.h>
 #include <asm/pgalloc.h>
@@ -21,6 +23,7 @@
 #include <asm/tlbflush.h>
 #include <asm/sections.h>
 #include <asm/set_memory.h>
+#include <asm/physmem_info.h>
 
 static DEFINE_MUTEX(vmem_mutex);
 
@@ -436,7 +439,7 @@ static int modify_pagetable(unsigned long start, unsigned long end, bool add,
 	if (WARN_ON_ONCE(!PAGE_ALIGNED(start | end)))
 		return -EINVAL;
 	/* Don't mess with any tables not fully in 1:1 mapping & vmemmap area */
-	if (WARN_ON_ONCE(end > VMALLOC_START))
+	if (WARN_ON_ONCE(end > __abs_lowcore))
 		return -EINVAL;
 	for (addr = start; addr < end; addr = next) {
 		next = pgd_addr_end(addr, end);
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 26afde0d1e..0de0f6e405 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -250,12 +250,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
 	return 0;
 }
 
-/* combine single writes by using store-block insn */
-void __iowrite64_copy(void __iomem *to, const void *from, size_t count)
-{
-	zpci_memcpy_toio(to, from, count * 8);
-}
-
 void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size,
 			   unsigned long prot)
 {
diff --git a/arch/s390/pci/pci_irq.c b/arch/s390/pci/pci_irq.c
index 0ef83b6ac0..84482a9213 100644
--- a/arch/s390/pci/pci_irq.c
+++ b/arch/s390/pci/pci_irq.c
@@ -268,33 +268,20 @@ static void zpci_floating_irq_handler(struct airq_struct *airq,
 	}
 }
 
-int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
+static int __alloc_airq(struct zpci_dev *zdev, int msi_vecs,
+			unsigned long *bit)
 {
-	struct zpci_dev *zdev = to_zpci(pdev);
-	unsigned int hwirq, msi_vecs, cpu;
-	unsigned long bit;
-	struct msi_desc *msi;
-	struct msi_msg msg;
-	int cpu_addr;
-	int rc, irq;
-
-	zdev->aisb = -1UL;
-	zdev->msi_first_bit = -1U;
-	if (type == PCI_CAP_ID_MSI && nvec > 1)
-		return 1;
-	msi_vecs = min_t(unsigned int, nvec, zdev->max_msi);
-
 	if (irq_delivery == DIRECTED) {
 		/* Allocate cpu vector bits */
-		bit = airq_iv_alloc(zpci_ibv[0], msi_vecs);
-		if (bit == -1UL)
+		*bit = airq_iv_alloc(zpci_ibv[0], msi_vecs);
+		if (*bit == -1UL)
 			return -EIO;
 	} else {
 		/* Allocate adapter summary indicator bit */
-		bit = airq_iv_alloc_bit(zpci_sbv);
-		if (bit == -1UL)
+		*bit = airq_iv_alloc_bit(zpci_sbv);
+		if (*bit == -1UL)
 			return -EIO;
-		zdev->aisb = bit;
+		zdev->aisb = *bit;
 
 		/* Create adapter interrupt vector */
 		zdev->aibv = airq_iv_create(msi_vecs, AIRQ_IV_DATA | AIRQ_IV_BITLOCK, NULL);
@@ -302,27 +289,66 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 			return -ENOMEM;
 
 		/* Wire up shortcut pointer */
-		zpci_ibv[bit] = zdev->aibv;
+		zpci_ibv[*bit] = zdev->aibv;
 		/* Each function has its own interrupt vector */
-		bit = 0;
+		*bit = 0;
 	}
+	return 0;
+}
 
-	/* Request MSI interrupts */
+int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
+{
+	unsigned int hwirq, msi_vecs, irqs_per_msi, i, cpu;
+	struct zpci_dev *zdev = to_zpci(pdev);
+	struct msi_desc *msi;
+	struct msi_msg msg;
+	unsigned long bit;
+	int cpu_addr;
+	int rc, irq;
+
+	zdev->aisb = -1UL;
+	zdev->msi_first_bit = -1U;
+
+	msi_vecs = min_t(unsigned int, nvec, zdev->max_msi);
+	if (msi_vecs < nvec) {
+		pr_info("%s requested %d irqs, allocate system limit of %d",
+			pci_name(pdev), nvec, zdev->max_msi);
+	}
+
+	rc = __alloc_airq(zdev, msi_vecs, &bit);
+	if (rc < 0)
+		return rc;
+
+	/*
+	 * Request MSI interrupts:
+	 * When using MSI, nvec_used interrupt sources and their irq
+	 * descriptors are controlled through one msi descriptor.
+	 * Thus the outer loop over msi descriptors shall run only once,
+	 * while two inner loops iterate over the interrupt vectors.
+	 * When using MSI-X, each interrupt vector/irq descriptor
+	 * is bound to exactly one msi descriptor (nvec_used is one).
+	 * So the inner loops are executed once, while the outer iterates
+	 * over the MSI-X descriptors.
+	 */
 	hwirq = bit;
 	msi_for_each_desc(msi, &pdev->dev, MSI_DESC_NOTASSOCIATED) {
-		rc = -EIO;
 		if (hwirq - bit >= msi_vecs)
 			break;
-		irq = __irq_alloc_descs(-1, 0, 1, 0, THIS_MODULE,
-				(irq_delivery == DIRECTED) ?
-				msi->affinity : NULL);
+		irqs_per_msi = min_t(unsigned int, msi_vecs, msi->nvec_used);
+		irq = __irq_alloc_descs(-1, 0, irqs_per_msi, 0, THIS_MODULE,
+					(irq_delivery == DIRECTED) ?
+					msi->affinity : NULL);
 		if (irq < 0)
 			return -ENOMEM;
-		rc = irq_set_msi_desc(irq, msi);
-		if (rc)
-			return rc;
-		irq_set_chip_and_handler(irq, &zpci_irq_chip,
-					 handle_percpu_irq);
+
+		for (i = 0; i < irqs_per_msi; i++) {
+			rc = irq_set_msi_desc_off(irq, i, msi);
+			if (rc)
+				return rc;
+			irq_set_chip_and_handler(irq + i, &zpci_irq_chip,
+						 handle_percpu_irq);
+		}
+
 		msg.data = hwirq - bit;
 		if (irq_delivery == DIRECTED) {
 			if (msi->affinity)
@@ -335,31 +361,35 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 			msg.address_lo |= (cpu_addr << 8);
 
 			for_each_possible_cpu(cpu) {
-				airq_iv_set_data(zpci_ibv[cpu], hwirq, irq);
+				for (i = 0; i < irqs_per_msi; i++)
+					airq_iv_set_data(zpci_ibv[cpu],
+							 hwirq + i, irq + i);
 			}
 		} else {
 			msg.address_lo = zdev->msi_addr & 0xffffffff;
-			airq_iv_set_data(zdev->aibv, hwirq, irq);
+			for (i = 0; i < irqs_per_msi; i++)
+				airq_iv_set_data(zdev->aibv, hwirq + i, irq + i);
 		}
 		msg.address_hi = zdev->msi_addr >> 32;
 		pci_write_msi_msg(irq, &msg);
-		hwirq++;
+		hwirq += irqs_per_msi;
 	}
 
 	zdev->msi_first_bit = bit;
-	zdev->msi_nr_irqs = msi_vecs;
+	zdev->msi_nr_irqs = hwirq - bit;
 
 	rc = zpci_set_irq(zdev);
 	if (rc)
 		return rc;
 
-	return (msi_vecs == nvec) ? 0 : msi_vecs;
+	return (zdev->msi_nr_irqs == nvec) ? 0 : zdev->msi_nr_irqs;
 }
 
 void arch_teardown_msi_irqs(struct pci_dev *pdev)
 {
 	struct zpci_dev *zdev = to_zpci(pdev);
 	struct msi_desc *msi;
+	unsigned int i;
 	int rc;
 
 	/* Disable interrupts */
@@ -369,8 +399,10 @@ void arch_teardown_msi_irqs(struct pci_dev *pdev)
 
 	/* Release MSI interrupts */
 	msi_for_each_desc(msi, &pdev->dev, MSI_DESC_ASSOCIATED) {
-		irq_set_msi_desc(msi->irq, NULL);
-		irq_free_desc(msi->irq);
+		for (i = 0; i < msi->nvec_used; i++) {
+			irq_set_msi_desc(msi->irq + i, NULL);
+			irq_free_desc(msi->irq + i);
+		}
 		msi->msg.address_lo = 0;
 		msi->msg.address_hi = 0;
 		msi->msg.data = 0;
diff --git a/arch/s390/pci/pci_mmio.c b/arch/s390/pci/pci_mmio.c
index a90499c087..5398729bfe 100644
--- a/arch/s390/pci/pci_mmio.c
+++ b/arch/s390/pci/pci_mmio.c
@@ -169,7 +169,7 @@ SYSCALL_DEFINE3(s390_pci_mmio_write, unsigned long, mmio_addr,
 	if (!(vma->vm_flags & VM_WRITE))
 		goto out_unlock_mmap;
 
-	ret = follow_pte(vma->vm_mm, mmio_addr, &ptep, &ptl);
+	ret = follow_pte(vma, mmio_addr, &ptep, &ptl);
 	if (ret)
 		goto out_unlock_mmap;
 
@@ -308,7 +308,7 @@ SYSCALL_DEFINE3(s390_pci_mmio_read, unsigned long, mmio_addr,
 	if (!(vma->vm_flags & VM_WRITE))
 		goto out_unlock_mmap;
 
-	ret = follow_pte(vma->vm_mm, mmio_addr, &ptep, &ptl);
+	ret = follow_pte(vma, mmio_addr, &ptep, &ptl);
 	if (ret)
 		goto out_unlock_mmap;
 
diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c
index a0b872b74f..0f4f1e8fc4 100644
--- a/arch/s390/pci/pci_sysfs.c
+++ b/arch/s390/pci/pci_sysfs.c
@@ -172,7 +172,6 @@ static ssize_t uid_is_unique_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(uid_is_unique);
 
-#ifndef CONFIG_DMI
 /* analogous to smbios index */
 static ssize_t index_show(struct device *dev,
 			  struct device_attribute *attr, char *buf)
@@ -202,7 +201,6 @@ static struct attribute_group zpci_ident_attr_group = {
 	.attrs = zpci_ident_attrs,
 	.is_visible = zpci_index_is_visible,
 };
-#endif
 
 static struct bin_attribute *zpci_bin_attrs[] = {
 	&bin_attr_util_string,
@@ -245,8 +243,6 @@ static struct attribute_group pfip_attr_group = {
 const struct attribute_group *zpci_attr_groups[] = {
 	&zpci_attr_group,
 	&pfip_attr_group,
-#ifndef CONFIG_DMI
 	&zpci_ident_attr_group,
-#endif
 	NULL,
 };
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index 4e930f5668..24eccaa293 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-OBJECT_FILES_NON_STANDARD := y
-
 purgatory-y := head.o purgatory.o string.o sha256.o mem.o
 
 targets += $(purgatory-y) purgatory.lds purgatory purgatory.chk purgatory.ro
@@ -15,12 +13,6 @@ CFLAGS_sha256.o := -D__DISABLE_EXPORTS -D__NO_FORTIFY
 $(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE
 	$(call if_changed_rule,as_o_S)
 
-KCOV_INSTRUMENT := n
-GCOV_PROFILE := n
-UBSAN_SANITIZE := n
-KASAN_SANITIZE := n
-KCSAN_SANITIZE := n
-
 KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
 KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
 KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding
diff --git a/arch/s390/tools/relocs.c b/arch/s390/tools/relocs.c
index 30a732c808..a74dbd5c98 100644
--- a/arch/s390/tools/relocs.c
+++ b/arch/s390/tools/relocs.c
@@ -280,7 +280,7 @@ static int do_reloc(struct section *sec, Elf_Rel *rel)
 	case R_390_GOTOFF64:
 		break;
 	case R_390_64:
-		add_reloc(&relocs64, offset);
+		add_reloc(&relocs64, offset - ehdr.e_entry);
 		break;
 	default:
 		die("Unsupported relocation type: %d\n", r_type);