For 10.2 we will be obliged to backport commits which are known to break migration because the CPU cpreg list has a different length on source and destination:

• “KVM: arm64: Introduce KVM_REG_ARM_VENDOR_HYP_BMAP_2”
• KVM: arm64: Hide TCR2_EL1 from userspace when disabled for guests
• KVM: arm64: Hide S1PIE registers from userspace when disabled for guests

We need to have a generic way to handle those situations