Re: [PATCH v4 20/23] linux-user/aarch64: Signal SEGV_MTEAERR for async tag check error

[Peter Maydell]

On Thu, 28 Jan 2021 at 22:42, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> The real kernel collects _TIF_MTE_ASYNC_FAULT into the current thread's
> state on any kernel entry (interrupt, exception etc), and then delivers
> the signal in advance of resuming the thread.
>
> This means that while the signal won't be delivered immediately, it will
> not be delayed forever -- at minimum it will be delivered after the next
> clock interrupt.
>
> We don't have a clock interrupt in linux-user, so we issue a cpu_kick
> to signal a return to the main loop at the end of the current TB.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM