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* kvm-arm64/writable-midr: : Writable implementation ID registers, courtesy of Sebastian Ott : : Introduce a new capability that allows userspace to set the : ID registers that identify a CPU implementation: MIDR_EL1, REVIDR_EL1, : and AIDR_EL1. Also plug a hole in KVM's trap configuration where : SMIDR_EL1 was readable at EL1, despite the fact that KVM does not : support SME. KVM: arm64: Fix documentation for KVM_CAP_ARM_WRITABLE_IMP_ID_REGS KVM: arm64: Copy MIDR_EL1 into hyp VM when it is writable KVM: arm64: Copy guest CTR_EL0 into hyp VM KVM: selftests: arm64: Test writes to MIDR,REVIDR,AIDR KVM: arm64: Allow userspace to change the implementation ID registers KVM: arm64: Load VPIDR_EL2 with the VM's MIDR_EL1 value KVM: arm64: Maintain per-VM copy of implementation ID regs KVM: arm64: Set HCR_EL2.TID1 unconditionally Signed-off-by: Oliver Upton <oliver.upton@linux.dev>