arm64: KVM: Treat sysreg accessors returning false as successful
Instead of considering that a sysreg accessor has failed when returning false, let's consider that it is *always* successful (after all, we won't stand for an incomplete emulation). The return value now simply indicates whether we should skip the instruction (because it has now been emulated), or if we should leave the PC alone if the emulation has injected an exception. Reviewed-by: Christoffer Dall <cdall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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