kvm: arm64: Add helpers for accessing nVHE hyp per-cpu vars
Defining a per-CPU variable in hyp/nvhe will result in its name being prefixed with __kvm_nvhe_. Add helpers for declaring these variables in kernel proper and accessing them with this_cpu_ptr and per_cpu_ptr. Signed-off-by: David Brazdil <dbrazdil@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20200922204910.7265-7-dbrazdil@google.com
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