Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 359 insertions, 0 deletions

diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c
new file mode 100644
index 000000000..11413f0ba
--- /dev/null
+++ b/arch/s390/boot/startup.c
@@ -0,0 +1,359 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/string.h>
+#include <linux/elf.h>
+#include <asm/boot_data.h>
+#include <asm/sections.h>
+#include <asm/maccess.h>
+#include <asm/cpu_mf.h>
+#include <asm/setup.h>
+#include <asm/kasan.h>
+#include <asm/kexec.h>
+#include <asm/sclp.h>
+#include <asm/diag.h>
+#include <asm/uv.h>
+#include <asm/abs_lowcore.h>
+#include <asm/mem_detect.h>
+#include "decompressor.h"
+#include "boot.h"
+#include "uv.h"
+
+unsigned long __bootdata_preserved(__kaslr_offset);
+unsigned long __bootdata_preserved(__abs_lowcore);
+unsigned long __bootdata_preserved(__memcpy_real_area);
+pte_t *__bootdata_preserved(memcpy_real_ptep);
+unsigned long __bootdata(__amode31_base);
+unsigned long __bootdata_preserved(VMALLOC_START);
+unsigned long __bootdata_preserved(VMALLOC_END);
+struct page *__bootdata_preserved(vmemmap);
+unsigned long __bootdata_preserved(vmemmap_size);
+unsigned long __bootdata_preserved(MODULES_VADDR);
+unsigned long __bootdata_preserved(MODULES_END);
+unsigned long __bootdata(ident_map_size);
+int __bootdata(is_full_image) = 1;
+struct initrd_data __bootdata(initrd_data);
+
+u64 __bootdata_preserved(stfle_fac_list[16]);
+u64 __bootdata_preserved(alt_stfle_fac_list[16]);
+struct oldmem_data __bootdata_preserved(oldmem_data);
+
+struct machine_info machine;
+
+void error(char *x)
+{
+	sclp_early_printk("\n\n");
+	sclp_early_printk(x);
+	sclp_early_printk("\n\n -- System halted");
+
+	disabled_wait();
+}
+
+static void detect_facilities(void)
+{
+	if (test_facility(8)) {
+		machine.has_edat1 = 1;
+		__ctl_set_bit(0, 23);
+	}
+	if (test_facility(78))
+		machine.has_edat2 = 1;
+	if (!noexec_disabled && test_facility(130)) {
+		machine.has_nx = 1;
+		__ctl_set_bit(0, 20);
+	}
+}
+
+static void setup_lpp(void)
+{
+	S390_lowcore.current_pid = 0;
+	S390_lowcore.lpp = LPP_MAGIC;
+	if (test_facility(40))
+		lpp(&S390_lowcore.lpp);
+}
+
+#ifdef CONFIG_KERNEL_UNCOMPRESSED
+unsigned long mem_safe_offset(void)
+{
+	return vmlinux.default_lma + vmlinux.image_size + vmlinux.bss_size;
+}
+#endif
+
+static unsigned long rescue_initrd(unsigned long safe_addr)
+{
+	if (!IS_ENABLED(CONFIG_BLK_DEV_INITRD))
+		return safe_addr;
+	if (!initrd_data.start || !initrd_data.size)
+		return safe_addr;
+	if (initrd_data.start < safe_addr) {
+		memmove((void *)safe_addr, (void *)initrd_data.start, initrd_data.size);
+		initrd_data.start = safe_addr;
+	}
+	return initrd_data.start + initrd_data.size;
+}
+
+static void copy_bootdata(void)
+{
+	if (__boot_data_end - __boot_data_start != vmlinux.bootdata_size)
+		error(".boot.data section size mismatch");
+	memcpy((void *)vmlinux.bootdata_off, __boot_data_start, vmlinux.bootdata_size);
+	if (__boot_data_preserved_end - __boot_data_preserved_start != vmlinux.bootdata_preserved_size)
+		error(".boot.preserved.data section size mismatch");
+	memcpy((void *)vmlinux.bootdata_preserved_off, __boot_data_preserved_start, vmlinux.bootdata_preserved_size);
+}
+
+static void handle_relocs(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");
+	}
+}
+
+/*
+ * Merge information from several sources into a single ident_map_size value.
+ * "ident_map_size" represents the upper limit of physical memory we may ever
+ * reach. It might not be all online memory, but also include standby (offline)
+ * memory. "ident_map_size" could be lower then actual standby or even online
+ * memory present, due to limiting factors. We should never go above this limit.
+ * It is the size of our identity mapping.
+ *
+ * Consider the following factors:
+ * 1. max_physmem_end - end of physical memory online or standby.
+ *    Always <= end of the last online memory block (get_mem_detect_end()).
+ * 2. CONFIG_MAX_PHYSMEM_BITS - the maximum size of physical memory the
+ *    kernel is able to support.
+ * 3. "mem=" kernel command line option which limits physical memory usage.
+ * 4. OLDMEM_BASE which is a kdump memory limit when the kernel is executed as
+ *    crash kernel.
+ * 5. "hsa" size which is a memory limit when the kernel is executed during
+ *    zfcp/nvme dump.
+ */
+static void setup_ident_map_size(unsigned long max_physmem_end)
+{
+	unsigned long hsa_size;
+
+	ident_map_size = max_physmem_end;
+	if (memory_limit)
+		ident_map_size = min(ident_map_size, memory_limit);
+	ident_map_size = min(ident_map_size, 1UL << MAX_PHYSMEM_BITS);
+
+#ifdef CONFIG_CRASH_DUMP
+	if (oldmem_data.start) {
+		kaslr_enabled = 0;
+		ident_map_size = min(ident_map_size, oldmem_data.size);
+	} else if (ipl_block_valid && is_ipl_block_dump()) {
+		kaslr_enabled = 0;
+		if (!sclp_early_get_hsa_size(&hsa_size) && hsa_size)
+			ident_map_size = min(ident_map_size, hsa_size);
+	}
+#endif
+}
+
+static unsigned long setup_kernel_memory_layout(void)
+{
+	unsigned long vmemmap_start;
+	unsigned long asce_limit;
+	unsigned long rte_size;
+	unsigned long pages;
+	unsigned long vmax;
+
+	pages = ident_map_size / PAGE_SIZE;
+	/* vmemmap contains a multiple of PAGES_PER_SECTION struct pages */
+	vmemmap_size = SECTION_ALIGN_UP(pages) * sizeof(struct page);
+
+	/* choose kernel address space layout: 4 or 3 levels. */
+	vmemmap_start = round_up(ident_map_size, _REGION3_SIZE);
+	if (IS_ENABLED(CONFIG_KASAN) ||
+	    vmalloc_size > _REGION2_SIZE ||
+	    vmemmap_start + vmemmap_size + vmalloc_size + MODULES_LEN >
+		    _REGION2_SIZE) {
+		asce_limit = _REGION1_SIZE;
+		rte_size = _REGION2_SIZE;
+	} else {
+		asce_limit = _REGION2_SIZE;
+		rte_size = _REGION3_SIZE;
+	}
+	/*
+	 * 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.
+	 */
+	vmax = adjust_to_uv_max(asce_limit);
+#ifdef CONFIG_KASAN
+	/* force vmalloc and modules below kasan shadow */
+	vmax = min(vmax, KASAN_SHADOW_START);
+#endif
+	__memcpy_real_area = round_down(vmax - PAGE_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);
+	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 */
+	vmalloc_size = min(vmalloc_size, round_down(VMALLOC_END / 2, _REGION3_SIZE));
+	VMALLOC_START = VMALLOC_END - vmalloc_size;
+
+	/* split remaining virtual space between 1:1 mapping & vmemmap array */
+	pages = VMALLOC_START / (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 is the future VMEM_MAX_PHYS, make sure it is within MAX_PHYSMEM */
+	vmemmap_start = min(vmemmap_start, 1UL << MAX_PHYSMEM_BITS);
+	/* 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);
+	vmemmap = (struct page *)vmemmap_start;
+
+	return asce_limit;
+}
+
+/*
+ * This function clears the BSS section of the decompressed Linux kernel and NOT the decompressor's.
+ */
+static void clear_bss_section(void)
+{
+	memset((void *)vmlinux.default_lma + vmlinux.image_size, 0, vmlinux.bss_size);
+}
+
+/*
+ * Set vmalloc area size to an 8th of (potential) physical memory
+ * size, unless size has been set by kernel command line parameter.
+ */
+static void setup_vmalloc_size(void)
+{
+	unsigned long size;
+
+	if (vmalloc_size_set)
+		return;
+	size = round_up(ident_map_size / 8, _SEGMENT_SIZE);
+	vmalloc_size = max(size, vmalloc_size);
+}
+
+static void offset_vmlinux_info(unsigned long offset)
+{
+	vmlinux.default_lma += offset;
+	*(unsigned long *)(&vmlinux.entry) += offset;
+	vmlinux.bootdata_off += offset;
+	vmlinux.bootdata_preserved_off += offset;
+	vmlinux.rela_dyn_start += offset;
+	vmlinux.rela_dyn_end += offset;
+	vmlinux.dynsym_start += offset;
+	vmlinux.init_mm_off += offset;
+	vmlinux.swapper_pg_dir_off += offset;
+	vmlinux.invalid_pg_dir_off += offset;
+}
+
+static unsigned long reserve_amode31(unsigned long safe_addr)
+{
+	__amode31_base = PAGE_ALIGN(safe_addr);
+	return __amode31_base + vmlinux.amode31_size;
+}
+
+void startup_kernel(void)
+{
+	unsigned long max_physmem_end;
+	unsigned long random_lma;
+	unsigned long safe_addr;
+	unsigned long asce_limit;
+	void *img;
+	psw_t psw;
+
+	initrd_data.start = parmarea.initrd_start;
+	initrd_data.size = parmarea.initrd_size;
+	oldmem_data.start = parmarea.oldmem_base;
+	oldmem_data.size = parmarea.oldmem_size;
+
+	setup_lpp();
+	store_ipl_parmblock();
+	safe_addr = mem_safe_offset();
+	safe_addr = reserve_amode31(safe_addr);
+	safe_addr = read_ipl_report(safe_addr);
+	uv_query_info();
+	safe_addr = rescue_initrd(safe_addr);
+	sclp_early_read_info();
+	setup_boot_command_line();
+	parse_boot_command_line();
+	detect_facilities();
+	sanitize_prot_virt_host();
+	max_physmem_end = detect_memory(&safe_addr);
+	setup_ident_map_size(max_physmem_end);
+	setup_vmalloc_size();
+	asce_limit = setup_kernel_memory_layout();
+	mem_detect_set_usable_limit(ident_map_size);
+
+	if (IS_ENABLED(CONFIG_RANDOMIZE_BASE) && kaslr_enabled) {
+		random_lma = get_random_base(safe_addr);
+		if (random_lma) {
+			__kaslr_offset = random_lma - vmlinux.default_lma;
+			img = (void *)vmlinux.default_lma;
+			offset_vmlinux_info(__kaslr_offset);
+		}
+	}
+
+	if (!IS_ENABLED(CONFIG_KERNEL_UNCOMPRESSED)) {
+		img = decompress_kernel();
+		memmove((void *)vmlinux.default_lma, img, vmlinux.image_size);
+	} else if (__kaslr_offset)
+		memcpy((void *)vmlinux.default_lma, img, vmlinux.image_size);
+
+	/*
+	 * The order of the following operations is important:
+	 *
+	 * - handle_relocs() must follow clear_bss_section() to establish static
+	 *   memory references to data in .bss to be used by setup_vmem()
+	 *   (i.e init_mm.pgd)
+	 *
+	 * - setup_vmem() must follow handle_relocs() to be able using
+	 *   static memory references to data in .bss (i.e init_mm.pgd)
+	 *
+	 * - copy_bootdata() must follow setup_vmem() to propagate changes to
+	 *   bootdata made by setup_vmem()
+	 */
+	clear_bss_section();
+	handle_relocs(__kaslr_offset);
+	setup_vmem(asce_limit);
+	copy_bootdata();
+
+	if (__kaslr_offset) {
+		/*
+		 * 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 | 0x1UL;
+		/* Clear non-relocated kernel */
+		if (IS_ENABLED(CONFIG_KERNEL_UNCOMPRESSED))
+			memset(img, 0, vmlinux.image_size);
+	}
+
+	/*
+	 * Jump to the decompressed kernel entry point and switch DAT mode on.
+	 */
+	psw.addr = vmlinux.entry;
+	psw.mask = PSW_KERNEL_BITS;
+	__load_psw(psw);
+}