kvm: arm64: Set up hyp percpu data for nVHE
Add hyp percpu section to linker script and rename the corresponding ELF sections of hyp/nvhe object files. This moves all nVHE-specific percpu variables to the new hyp percpu section. Allocate sufficient amount of memory for all percpu hyp regions at global KVM init time and create corresponding hyp mappings. The base addresses of hyp percpu regions are kept in a dynamically allocated array in the kernel. Add NULL checks in PMU event-reset code as it may run before KVM memory is initialized. 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/20200922204910.7265-10-dbrazdil@google.com
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