KVM: arm64: Ask the compiler to __always_inline functions used at HYP
On non VHE CPUs, KVM's __hyp_text contains code run at EL2 while the rest of the kernel runs at EL1. This code lives in its own section with start and end markers so we can map it to EL2. The compiler may decide not to inline static-inline functions from the header file. It may also decide not to put these out-of-line functions in the same section, meaning they aren't mapped when called at EL2. Clang-9 does exactly this with __kern_hyp_va() and a few others when x18 is reserved for the shadow call stack. Add the additional __always_ hint to all the static-inlines that are called from a hyp file. Signed-off-by:James Morse <james.morse@arm.com> Signed-off-by:
Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200220165839.256881-2-james.morse@arm.com ---- kvm_get_hyp_vector() pulls in all the regular per-cpu accessors and this_cpu_has_cap(), fortunately its only called for VHE.
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