Re: [Qemu-ppc] [PATCH 3/4] Watchdog exit handling support

[Scott Wood]

On 06/28/2012 12:39 AM, Bharat Bhushan wrote:
> This patch adds the support to handle the exit caused by watchdog
> (KVM_EXIT_WDT). In the handling we clear the TSR register.

I'm not sure what the logical split is between this patch and 4/4...

> diff --git a/hw/ppc_booke.c b/hw/ppc_booke.c
> index 837a5b6..a9fba15 100644
> --- a/hw/ppc_booke.c
> +++ b/hw/ppc_booke.c
> @@ -203,6 +203,11 @@ static void booke_wdt_cb(void *opaque)
>                               booke_timer->wdt_timer);
>  }
>  
> +void ppc_booke_wdt_clear_tsr(CPUPPCState *env, target_ulong tsr)
> +{
> +    env->spr[SPR_BOOKE_TSR] = tsr & ~(TSR_ENW | TSR_WIS | TSR_WRS_MASK);
> +}
> +

We should probably call this function before returning to KVM, at least
after we halt for debug, possibly other times.

-Scott