Merge tag 's390-7.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Add support for sclp-vt220 terminal resize events e.g. for QEMU

 - Warn if kernel command line contains non-printable EBCDIC characters

 - Improve show_code() disassembly output by using reliable markers for
   the instruction address and faulting instruction

 - Rework exception handling to require only a single exception table
   entry per faulting instruction: convert all inline assemblies from
   EX_TABLE to the new EX_TABLE_INSN macros. The previous exception
   handling was error prone since it usually required two EX_TABLE
   entries: one pointing at the instruction, and one pointing behind it

 - Disallow kprobes on instructions with exception table entries to
   avoid exception handlers decoding a breakpoint instead of the
   original instruction

 - Preemptible percpu ops changes:

    - Simplify percpu_entry() and percpu_exit() by encoding the percpu
      base, offset, and pointer registers into the lowcore marker,
      allowing percpu_exit() to update the percpu pointer on CPU
      migration without comparing the interrupted instruction

    - Convert this_cpu_cmpxchg(), this_cpu_xchg(), and
      this_cpu_cmpxchg128() to preemptible percpu ops; provide
      this_cpu_try_cmpxchg()

 - Emulate virtual timer in appldata via delayed work and remove the
   s390 specific vtimer infrastructure

 - Add lock contention tracepoints to rwlock slowpath

 - Fix incorrect return address in signal frame setup

 - Fix cpum_cf CPU hotplug handling

 - Convert various __get_free_pages() / get_zeroed_page() users to
   kmalloc() / kzalloc()

 - PCI:

    - Improve RPCIT instruction tracing

    - Fix double-free, use-after-free, and resource leaks in zPCI MSI
      and IRQ setup / cleanup paths

 - Crypto and zcrypt:

    - Improve reply message and length verification checks for CCA,
      EP11, and ICA messages to prevent out-of-bounds reads

    - Add missing array_index_nospec() for domain index uses in zcrypt
      to prevent speculative execution bypass

    - Fix out-of-bounds read in cca_query_crypto_facility()

 - Various other small fixes and improvements

* tag 's390-7.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (102 commits)
  s390/signal: Cleanup coding style
  s390/signal: Fix incorrect return address in signal frame
  s390/probes: Fix wrong mnemonic comment for clgib
  s390/probes: Add missing fixup for bctgr and bic
  s390/probes: Fix wrong opcode for cgrb fixup
  s390: Select ARCH_MEMORY_ORDER_TSO
  s390/mm: Cleanup pXXp_flush_lazy() routines
  s390/pci: Add function handle to RPCIT insn trace
  s390/pci: Use 32-bit fh outside of inline asm
  s390/pci: Adjust alignment in insn trace
  s390/sclp: Remove redundant memset after memblock_alloc_low()
  s390/entry: Save lowcore on invalid kernel stack
  s390/entry: Last breaking event vs invalid kernel stack
  s390/percpu: ImplemenHeiko Carstenst this_cpu_try_cmpxchg()
  s390/percpu: Drop unused output register from arch_this_cpu_to_op()
  s390/percpu: Drop unused output register from arch_this_cpu_add()
  s390/percpu: Use asm_inline for arch_this_cpu_add()
  s390/extable: Remove EX_TABLE macros and fallback extable search
  s390/bpf: Simplify exception table entry handling
  s390/sclp: Convert inline assembly to EX_TABLE_INSN
  ...

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