KVM: arm64: Add some more comments in kvm_hyp_handle_fpsimd()
The handling for FPSIMD/SVE traps is multi stage and involves some trap manipulation which isn't quite so immediately obvious as might be desired so add a few more comments. Signed-off-by: NMark Brown <broonie@kernel.org> Signed-off-by: NMarc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220124155720.3943374-3-broonie@kernel.org
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