Merge branch kvm-arm64/hyp-type-checking-7.4 into kvmarm-master/next

* kvm-arm64/hyp-type-checking-7.4:
  : \
  : Restore some sanity in the EL2 department by enforcing the type
  : checking that was lost when converting the KVM internal
  : interface to SMCCC. Patches courtesy of Fuad Tabba.
  :
  : From the cover letter:
  :
  : "This series implements that, in plain preprocessor macros rather than
  : an external generator, in the mold of the syscall wrappers. Each
  : hypercall's signature is declared once, in kvm_hcall.h:
  : kvm_call_hyp_nvhe() resolves to a typed nvhe_hvc_##f() stub generated
  : from the declaration, and the hyp-main.c handlers unmarshal their
  : arguments through glue that is type-checked against the same
  : declaration. A mistyped or stale call, or a handler that drifts from
  : its caller, now fails to compile. On top of that shared declaration,
  : host-VA parameters gain a __kern sparse address space, so
  : dereferencing one at EL2 without kern_hyp_va_host() translation is
  : flagged by sparse. The address space is KVM-private and lives with the
  : interface it annotates rather than in compiler_types.h, like x86's
  : __seg_gs in asm/percpu.h. The deeper instances of that bug class, host
  : VAs reached through struct fields after the boundary, are follow-up
  : work."
  : /
  KVM: arm64: Tag host-VA hypercall parameters __kern
  KVM: arm64: nVHE: Check hypercall handlers against the declared ABI
  KVM: arm64: Type-check hypercall arguments at the caller
  KVM: arm64: Move the host hypercall interface to its own header
  KVM: arm64: nVHE: Pass host VA arguments as pointers
  arm64: pi: Run the source checker on the libfdt objects under C=2
  KVM: arm64: nVHE: Run the source checker under C=2
  KVM: arm64: nVHE: Use NULL to reset the trace buffer backing pointer
  KVM: arm64: nVHE: Declare the hyp event IDs before defining them
  KVM: arm64: nVHE: Share the stacktrace per-CPU declarations with EL2
  tracing: Include linux/types.h in trace_remote_event.h

Signed-off-by: Marc Zyngier <maz@kernel.org>

0 files changed, 0 insertions, 0 deletions