Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64...

Pull arm64 updates from Will Deacon:
 "The highlights are support for Arm's "Permission Overlay Extension"
  using memory protection keys, support for running as a protected guest
  on Android as well as perf support for a bunch of new interconnect
  PMUs.

  Summary:

  ACPI:
   - Enable PMCG erratum workaround for HiSilicon HIP10 and 11
     platforms.
   - Ensure arm64-specific IORT header is covered by MAINTAINERS.

  CPU Errata:
   - Enable workaround for hardware access/dirty issue on Ampere-1A
     cores.

  Memory management:
   - Define PHYSMEM_END to fix a crash in the amdgpu driver.
   - Avoid tripping over invalid kernel mappings on the kexec() path.
   - Userspace support for the Permission Overlay Extension (POE) using
     protection keys.

  Perf and PMUs:
   - Add support for the "fixed instruction counter" extension in the
     CPU PMU architecture.
   - Extend and fix the event encodings for Apple's M1 CPU PMU.
   - Allow LSM hooks to decide on SPE permissions for physical
     profiling.
   - Add support for the CMN S3 and NI-700 PMUs.

  Confidential Computing:
   - Add support for booting an arm64 kernel as a protected guest under
     Android's "Protected KVM" (pKVM) hypervisor.

  Selftests:
   - Fix vector length issues in the SVE/SME sigreturn tests
   - Fix build warning in the ptrace tests.

  Timers:
   - Add support for PR_{G,S}ET_TSC so that 'rr' can deal with
     non-determinism arising from the architected counter.

  Miscellaneous:
   - Rework our IPI-based CPU stopping code to try NMIs if regular IPIs
     don't succeed.
   - Minor fixes and cleanups"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (94 commits)
  perf: arm-ni: Fix an NULL vs IS_ERR() bug
  arm64: hibernate: Fix warning for cast from restricted gfp_t
  arm64: esr: Define ESR_ELx_EC_* constants as UL
  arm64: pkeys: remove redundant WARN
  perf: arm_pmuv3: Use BR_RETIRED for HW branch event if enabled
  MAINTAINERS: List Arm interconnect PMUs as supported
  perf: Add driver for Arm NI-700 interconnect PMU
  dt-bindings/perf: Add Arm NI-700 PMU
  perf/arm-cmn: Improve format attr printing
  perf/arm-cmn: Clean up unnecessary NUMA_NO_NODE check
  arm64/mm: use lm_alias() with addresses passed to memblock_free()
  mm: arm64: document why pte is not advanced in contpte_ptep_set_access_flags()
  arm64: Expose the end of the linear map in PHYSMEM_END
  arm64: trans_pgd: mark PTEs entries as valid to avoid dead kexec()
  arm64/mm: Delete __init region from memblock.reserved
  perf/arm-cmn: Support CMN S3
  dt-bindings: perf: arm-cmn: Add CMN S3
  perf/arm-cmn: Refactor DTC PMU register access
  perf/arm-cmn: Make cycle counts less surprising
  perf/arm-cmn: Improve build-time assertion
  ...

diff --cc MAINTAINERS
Simple merge

diff --cc arch/arm64/kernel/smp.c
Simple merge

diff --cc arch/arm64/kvm/sys_regs.c
Simple merge

diff --cc arch/x86/Kconfig
Simple merge

diff --cc include/linux/mm.h
Simple merge

diff --cc kernel/events/core.c
Simple merge

diff --cc tools/testing/selftests/kvm/aarch64/get-reg-list.c
index 4abebde781873b80a4fb8e72f4028d98770e553c,ac661ebf6859bb2975f59a6503138571b4344bce..d43fb3f49050ba3de950d19d56b45beefec9dbeb
--- 1/tools/testing/selftests/kvm/aarch64/get-reg-list.c
--- 2/tools/testing/selftests/kvm/aarch64/get-reg-list.c
+++ b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
@@@ -38,8 -38,20 +38,20 @@@ static struct feature_id_reg feat_id_re
        {
                ARM64_SYS_REG(3, 0, 10, 2, 3),  /* PIR_EL1 */
                ARM64_SYS_REG(3, 0, 0, 7, 3),   /* ID_AA64MMFR3_EL1 */
 -              4,
 +              8,
                1
+       },
+       {
+               ARM64_SYS_REG(3, 0, 10, 2, 4),  /* POR_EL1 */
+               ARM64_SYS_REG(3, 0, 0, 7, 3),   /* ID_AA64MMFR3_EL1 */
+               16,
+               1
+       },
+       {
+               ARM64_SYS_REG(3, 3, 10, 2, 4),  /* POR_EL0 */
+               ARM64_SYS_REG(3, 0, 0, 7, 3),   /* ID_AA64MMFR3_EL1 */
+               16,
+               1
        }
  };
  

diff --cc tools/testing/selftests/mm/Makefile
Simple merge