Re: [Qemu-arm] [PATCH v8 03/13] target/arm: Swap PMU values before/after migrations

[Peter Maydell]

On Tue, 20 Nov 2018 at 21:26, Aaron Lindsay
<address@hidden> wrote:
>
> Because of the PMU's design, many register accesses have side effects
> which are inter-related, meaning that the normal method of saving CP
> registers can result in inconsistent state. These side-effects are
> largely handled in pmu_op_start/finish functions which can be called
> before and after the state is saved/restored. By doing this and adding
> raw read/write functions for the affected registers, we avoid
> migration-related inconsistencies.
>
> Signed-off-by: Aaron Lindsay <address@hidden>
> Signed-off-by: Aaron Lindsay <address@hidden>

Reviewed-by: Peter Maydell <address@hidden>

thanks
-- PMM