[GIT PULL] arm64 updates for 6.18

[Zenghui Yu]

On 2025/9/27 1:13, Will Deacon wrote:
> ACPI, EFI and PSCI:
>  - Decouple Arm's "Software Delegated Exception Interface" (SDEI)
>    support from the ACPI GHES code so that it can be used by platforms
>    booted with device-tree.
> 
>  - Remove unnecessary per-CPU tracking of the FPSIMD state across EFI
>    runtime calls.
> 
>  - Fix a node refcount imbalance in the PSCI device-tree code.
> 
> CPU Features:
>  - Ensure register sanitisation is applied to fields in ID_AA64MMFR4.
> 
>  - Expose AIDR_EL1 to userspace via sysfs, primarily so that KVM guests
>    can reliably query the underlying CPU types from the VMM.
> 
>  - Re-enabling of SME support (CONFIG_ARM64_SME) as a result of fixes
>    to our context-switching, signal handling and ptrace code.

IIRC they're 6.16 stuff [*].

[*] https://lore.kernel.org/all/20250528114103.GA27965@willie-the-truck

Thanks,
Zenghui