e300f4c11d
Accessing another device in a post_load hook is a bad idea, because the order of device save/restore is not fixed, and so this cross-device access makes the save/restore non-deterministic. We previously only flagged up this requirement in the record-and-replay developer docs; repeat it in the main migration documentation, where a developer trying to implement a post_load hook is more likely to see it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>