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Andrew Scull authored
arm_smccc_1_1_hvc() only adds write contraints for x0-3 in the inline assembly for the HVC instruction so make sure those are the only registers that change when __do_hyp_init is called. Tested-by: David Brazdil <dbrazdil@google.com> Signed-off-by: Andrew Scull <ascull@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210125145415.122439-3-ascull@google.com
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