Merge tag 's390-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Alexander Gordeev:

 - Store AP Query Configuration Information in a static buffer

 - Rework the AP initialization and add missing cleanups to the error
   path

 - Swap IRQ and AP bus/device registration to avoid race conditions

 - Export prot_virt_guest symbol

 - Introduce AP configuration changes notifier interface to facilitate
   modularization of the AP bus

 - Add CONFIG_AP kernel configuration option to allow modularization of
   the AP bus

 - Rework CONFIG_ZCRYPT_DEBUG kernel configuration option description
   and dependency and rename it to CONFIG_AP_DEBUG

 - Convert sprintf() and snprintf() to sysfs_emit() in CIO code

 - Adjust indentation of RELOCS command build step

 - Make crypto performance counters upward compatible

 - Convert make_page_secure() and gmap_make_secure() to use folio

 - Rework channel-utilization-block (CUB) handling in preparation of
   introducing additional CUBs

 - Use attribute groups to simplify registration, removal and extension
   of measurement-related channel-path sysfs attributes

 - Add a per-channel-path binary "ext_measurement" sysfs attribute that
   provides access to extended channel-path measurement data

 - Export measurement data for all channel-measurement-groups (CMG), not
   only for a specific ones. This enables support of new CMG data
   formats in userspace without the need for kernel changes

 - Add a per-channel-path sysfs attribute "speed_bps" that provides the
   operating speed in bits per second or 0 if the operating speed is not
   available

 - The CIO tracepoint subchannel-type field "st" is incorrectly set to
   the value of subchannel-enabled SCHIB "ena" field. Fix that

 - Do not forcefully limit vmemmap starting address to MAX_PHYSMEM_BITS

 - Consider the maximum physical address available to a DCSS segment
   (512GB) when memory layout is set up

 - Simplify the virtual memory layout setup by reducing the size of
   identity mapping vs vmemmap overlap

 - Swap vmalloc and Lowcore/Real Memory Copy areas in virtual memory.
   This will allow to place the kernel image next to kernel modules

 - Move everyting KASLR related from <asm/setup.h> to <asm/page.h>

 - Put virtual memory layout information into a structure to improve
   code generation

 - Currently __kaslr_offset is the kernel offset in both physical and
   virtual memory spaces. Uncouple these offsets to allow uncoupling of
   the addresses spaces

 - Currently the identity mapping base address is implicit and is always
   set to zero. Make it explicit by putting into __identity_base
   persistent boot variable and use it in proper context

 - Introduce .amode31 section start and end macros AMODE31_START and
   AMODE31_END

 - Introduce OS_INFO entries that do not reference any data in memory,
   but rather provide only values

 - Store virtual memory layout in OS_INFO. It is read out by
   makedumpfile, crash and other tools

 - Store virtual memory layout in VMCORE_INFO. It is read out by crash
   and other tools when /proc/kcore device is used

 - Create additional PT_LOAD ELF program header that covers kernel image
   only, so that vmcore tools could locate kernel text and data when
   virtual and physical memory spaces are uncoupled

 - Uncouple physical and virtual address spaces

 - Map kernel at fixed location when KASLR mode is disabled. The
   location is defined by CONFIG_KERNEL_IMAGE_BASE kernel configuration
   value.

 - Rework deployment of kernel image for both compressed and
   uncompressed variants as defined by CONFIG_KERNEL_UNCOMPRESSED kernel
   configuration value

 - Move .vmlinux.relocs section in front of the compressed kernel. The
   interim section rescue step is avoided as result

 - Correct modules thunk offset calculation when branch target is more
   than 2GB away

 - Kernel modules contain their own set of expoline thunks. Now that the
   kernel modules area is less than 4GB away from kernel expoline
   thunks, make modules use kernel expolines. Also make EXPOLINE_EXTERN
   the default if the compiler supports it

 - userfaultfd can insert shared zeropages into processes running VMs,
   but that is not allowed for s390. Fallback to allocating a fresh
   zeroed anonymous folio and insert that instead

 - Re-enable shared zeropages for non-PV and non-skeys KVM guests

 - Rename hex2bitmap() to ap_hex2bitmap() and export it for external use

 - Add ap_config sysfs attribute to provide the means for setting or
   displaying adapters, domains and control domains assigned to a
   vfio-ap mediated device in a single operation

 - Make vfio_ap_mdev_link_queue() ignore duplicate link requests

 - Add write support to ap_config sysfs attribute to allow atomic update
   a vfio-ap mediated device state

 - Document ap_config sysfs attribute

 - Function os_info_old_init() is expected to be called only from a
   regular kdump kernel. Enable it to be called from a stand-alone dump
   kernel

 - Address gcc -Warray-bounds warning and fix array size in struct
   os_info

 - s390 does not support SMBIOS, so drop unneeded CONFIG_DMI checks

 - Use unwinder instead of __builtin_return_address() with ftrace to
   prevent returning of undefined values

 - Sections .hash and .gnu.hash are only created when CONFIG_PIE_BUILD
   kernel is enabled. Drop these for the case CONFIG_PIE_BUILD is
   disabled

 - Compile kernel with -fPIC and link with -no-pie to allow kpatch
   feature always succeed and drop the whole CONFIG_PIE_BUILD
   option-enabled code

 - Add missing virt_to_phys() converter for VSIE facility and crypto
   control blocks

* tag 's390-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (54 commits)
  Revert "s390: Relocate vmlinux ELF data to virtual address space"
  KVM: s390: vsie: Use virt_to_phys for crypto control block
  s390: Relocate vmlinux ELF data to virtual address space
  s390: Compile kernel with -fPIC and link with -no-pie
  s390: vmlinux.lds.S: Drop .hash and .gnu.hash for !CONFIG_PIE_BUILD
  s390/ftrace: Use unwinder instead of __builtin_return_address()
  s390/pci: Drop unneeded reference to CONFIG_DMI
  s390/os_info: Fix array size in struct os_info
  s390/os_info: Initialize old os_info in standalone dump kernel
  docs: Update s390 vfio-ap doc for ap_config sysfs attribute
  s390/vfio-ap: Add write support to sysfs attr ap_config
  s390/vfio-ap: Ignore duplicate link requests in vfio_ap_mdev_link_queue
  s390/vfio-ap: Add sysfs attr, ap_config, to export mdev state
  s390/ap: Externalize AP bus specific bitmap reading function
  s390/mm: Re-enable the shared zeropage for !PV and !skeys KVM guests
  mm/userfaultfd: Do not place zeropages when zeropages are disallowed
  s390/expoline: Make modules use kernel expolines
  s390/nospec: Correct modules thunk offset calculation
  s390/boot: Do not rescue .vmlinux.relocs section
  s390/boot: Rework deployment of the kernel image
  ...

12 files changed, 127 insertions, 84 deletions

diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index fa029d0dc28f..db2d9ba5a86d 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -11,6 +11,8 @@ CFLAGS_REMOVE_ftrace.o		= $(CC_FLAGS_FTRACE)
 # Do not trace early setup code
 CFLAGS_REMOVE_early.o		= $(CC_FLAGS_FTRACE)
 CFLAGS_REMOVE_rethook.o		= $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_stacktrace.o	= $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_unwind_bc.o	= $(CC_FLAGS_FTRACE)
 
 endif
 
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index d09ebb6f5262..9863ebe75019 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -465,7 +465,11 @@ 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 memory chunk PT_LOAD program headers plus one kernel
+	 * image PT_LOAD program header plus one PT_NOTE program header.
+	 */
+	ehdr->e_phnum = mem_chunk_cnt + 1 + 1;
 	return ehdr + 1;
 }
 
@@ -501,15 +505,16 @@ static int get_mem_chunk_cnt(void)
  */
 static void loads_init(Elf64_Phdr *phdr)
 {
+	unsigned long old_identity_base = os_info_old_value(OS_INFO_IDENTITY_BASE);
 	phys_addr_t start, end;
 	u64 idx;
 
 	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;
@@ -518,6 +523,25 @@ static void loads_init(Elf64_Phdr *phdr)
 }
 
 /*
+ * 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)
  */
 static void *notes_init(Elf64_Phdr *phdr, void *ptr, u64 notes_offset)
@@ -557,6 +581,8 @@ static size_t get_elfcorehdr_size(int mem_chunk_cnt)
 	size += nt_vmcoreinfo_size();
 	/* nt_final */
 	size += sizeof(Elf64_Nhdr);
+	/* PT_LOAD type program header for kernel text region */
+	size += sizeof(Elf64_Phdr);
 	/* PT_LOADS */
 	size += mem_chunk_cnt * sizeof(Elf64_Phdr);
 
@@ -568,7 +594,7 @@ 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;
 	size_t alloc_size;
 	int mem_chunk_cnt;
 	void *ptr, *hdr;
@@ -606,14 +632,19 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size)
 	/* Init program headers */
 	phdr_notes = ptr;
 	ptr = PTR_ADD(ptr, sizeof(Elf64_Phdr));
+	phdr_text = ptr;
+	ptr = PTR_ADD(ptr, sizeof(Elf64_Phdr));
 	phdr_loads = ptr;
 	ptr = PTR_ADD(ptr, 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 */
+	text_init(phdr_text);
 	/* Init loads */
-	hdr_off = PTR_DIFF(ptr, hdr);
 	loads_init(phdr_loads);
+	/* Finalize program headers */
+	hdr_off = PTR_DIFF(ptr, hdr);
 	*addr = (unsigned long long) hdr;
 	*size = (unsigned long long) hdr_off;
 	BUG_ON(elfcorehdr_size > alloc_size);
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 1486350a4177..7dc54571f18e 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1209,8 +1209,8 @@ 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 */
@@ -1940,7 +1940,7 @@ 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);
diff --git a/arch/s390/kernel/nospec-branch.c b/arch/s390/kernel/nospec-branch.c
index d1b16d83e49a..9b8c24ebb008 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 a801e6bd5341..b695f980bbde 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 41ed6e0f0a2a..1434642e9cba 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:
diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
index 0d64aafd158f..e4a6bfc91080 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/setup.c b/arch/s390/kernel/setup.c
index 24ed33f044ec..cbd5290939df 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_GPL(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/stacktrace.c b/arch/s390/kernel/stacktrace.c
index 94f440e38303..7c294da45bf5 100644
--- a/arch/s390/kernel/stacktrace.c
+++ b/arch/s390/kernel/stacktrace.c
@@ -101,3 +101,22 @@ void arch_stack_walk_user(stack_trace_consume_fn consume_entry, void *cookie,
 	}
 	pagefault_enable();
 }
+
+unsigned long return_address(unsigned int n)
+{
+	struct unwind_state state;
+	unsigned long addr;
+
+	/* Increment to skip current stack entry */
+	n++;
+
+	unwind_for_each_frame(&state, NULL, NULL, 0) {
+		addr = unwind_get_return_address(&state);
+		if (!addr)
+			break;
+		if (!n--)
+			return addr;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(return_address);
diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
index fc07bc39e698..265fea37e030 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 +307,19 @@ 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);
 		}
 	}
+unlock:
 	pte_unmap_unlock(ptep, ptelock);
 out:
 	mmap_read_unlock(gmap->mm);
@@ -324,10 +329,10 @@ 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);
 	} 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 +343,7 @@ 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/vmcore_info.c b/arch/s390/kernel/vmcore_info.c
index d296dfc22191..23f7d7619a99 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 48de296e8905..a1ce3925ec71 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)
-	}
-#endif
-	.hash ALIGN(8) : {
-		*(.hash)
-	}
-	.gnu.hash ALIGN(8) : {
-		*(.gnu.hash)
-	}
-
 	. = 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