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

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
  ...

2 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arm_pmuv3.h b/arch/arm/include/asm/arm_pmuv3.h
index a41b503b7dcd..f63ba8986b24 100644
--- a/arch/arm/include/asm/arm_pmuv3.h
+++ b/arch/arm/include/asm/arm_pmuv3.h
@@ -127,6 +127,12 @@ static inline u32 read_pmuver(void)
 	return (dfr0 >> 24) & 0xf;
 }
 
+static inline bool pmuv3_has_icntr(void)
+{
+	/* FEAT_PMUv3_ICNTR not accessible for 32-bit */
+	return false;
+}
+
 static inline void write_pmcr(u32 val)
 {
 	write_sysreg(val, PMCR);
@@ -152,6 +158,13 @@ static inline u64 read_pmccntr(void)
 	return read_sysreg(PMCCNTR);
 }
 
+static inline void write_pmicntr(u64 val) {}
+
+static inline u64 read_pmicntr(void)
+{
+	return 0;
+}
+
 static inline void write_pmcntenset(u32 val)
 {
 	write_sysreg(val, PMCNTENSET);
@@ -177,6 +190,13 @@ static inline void write_pmccfiltr(u32 val)
 	write_sysreg(val, PMCCFILTR);
 }
 
+static inline void write_pmicfiltr(u64 val) {}
+
+static inline u64 read_pmicfiltr(void)
+{
+	return 0;
+}
+
 static inline void write_pmovsclr(u32 val)
 {
 	write_sysreg(val, PMOVSR);
diff --git a/arch/arm/include/asm/hypervisor.h b/arch/arm/include/asm/hypervisor.h
index bd61502b9715..8a648e506540 100644
--- a/arch/arm/include/asm/hypervisor.h
+++ b/arch/arm/include/asm/hypervisor.h
@@ -7,4 +7,6 @@
 void kvm_init_hyp_services(void);
 bool kvm_arm_hyp_service_available(u32 func_id);
 
+static inline void kvm_arch_init_hyp_services(void) { };
+
 #endif