|
From: | atp exp |
Subject: | Re: [PATCH 1/3] misc: m48t59: replace qemu_system_reset_request() call with watchdog_perform_action() |
Date: | Fri, 16 Feb 2024 23:57:12 +0530 |
On Fri, 16 Feb 2024 at 13:56, Abhiram Tilak <atp.exp@gmail.com> wrote:
>
> A few watchdog devices use qemu_system_reset_request(). This is not ideal since
> behaviour of watchdog-expiry can't be changed by QMP using `watchdog_action`.
> As stated in BiteSizedTasks wiki page, instead of using qemu_system_reset_request()
> to reset when a watchdog timer expires, let watchdog_perform_action() decide
> what to do.
>
> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2124
> Signed-off-by: Abhiram Tilak <atp.exp@gmail.com>
> ---
> hw/rtc/m48t59.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/hw/rtc/m48t59.c b/hw/rtc/m48t59.c
> index aa44c4b20c..ebda084478 100644
> --- a/hw/rtc/m48t59.c
> +++ b/hw/rtc/m48t59.c
> @@ -36,6 +36,7 @@
> #include "qemu/bcd.h"
> #include "qemu/module.h"
> #include "trace.h"
> +#include "sysemu/watchdog.h"
>
> #include "m48t59-internal.h"
> #include "migration/vmstate.h"
> @@ -163,8 +164,7 @@ static void watchdog_cb (void *opaque)
> if (NVRAM->buffer[0x1FF7] & 0x80) {
> NVRAM->buffer[0x1FF7] = 0x00;
> NVRAM->buffer[0x1FFC] &= ~0x40;
> - /* May it be a hw CPU Reset instead ? */
> - qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
> + watchdog_perform_action(); /* watchdog-expired action */
> } else {
I don't think we need the comment, it's clear enough from the
name of the function.
Otherwise
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
thanks
-- PMM
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