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For inbound migration we really want to be able to set the PSR without having any side effects, but cpu_put_psr() calls cpu_check_irqs() which might try to deliver CPU interrupts. Split cpu_put_psr() into the no-side-effect and side-effect parts. This includes reordering the cpu_check_irqs() to the end of cpu_put_psr(), because that function may actually end up calling cpu_interrupt(), which does not seem like a good thing to happen in the middle of updating the PSR. Suggested-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>