From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: [PATCH v8 01/11] xen: introduce SHUTDOWN_soft_reset
 shutdown reason
Date: Tue, 7 Jul 2015 16:44:07 -0400
Message-ID: <20150707204407.GC606@l.oracle.com>
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To: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Wei Liu <wei.liu2@citrix.com>, Andrew Jones <drjones@redhat.com>, Keir Fraser <keir@xen.org>, Ian Campbell <ian.campbell@citrix.com>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Julien Grall <julien.grall@linaro.org>, Ian Jackson <ian.jackson@eu.citrix.com>, Olaf Hering <olaf@aepfle.de>, Tim Deegan <tim@xen.org>, David Vrabel <david.vrabel@citrix.com>, Jan Beulich <jbeulich@suse.com>, xen-devel@lists.xenproject.org, Daniel De Graaf <dgdegra@tycho.nsa.gov>
List-Id: xen-devel@lists.xenproject.org

On Tue, Jun 23, 2015 at 06:11:43PM +0200, Vitaly Kuznetsov wrote:
> This special type of shutdown is supposed to be used by PVHVM guests when
> they want to perform some sort of kexec/kdump.
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

> ---
>  xen/common/shutdown.c      | 6 ++++++
>  xen/include/public/sched.h | 3 ++-
>  2 files changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/xen/common/shutdown.c b/xen/common/shutdown.c
> index 9cfbf7a..03a8641 100644
> --- a/xen/common/shutdown.c
> +++ b/xen/common/shutdown.c
> @@ -66,6 +66,12 @@ void hwdom_shutdown(u8 reason)
>          machine_restart(0);
>          break; /* not reached */
>  
> +    case SHUTDOWN_soft_reset:
> +        printk("Hardware domain %d did unsupported soft reset, rebooting.\n",
> +               hardware_domain->domain_id);
> +        machine_restart(0);
> +        break; /* not reached */
> +
>      default:
>          printk("Hardware Dom%u shutdown (unknown reason %u): ",
>                 hardware_domain->domain_id, reason);
> diff --git a/xen/include/public/sched.h b/xen/include/public/sched.h
> index 4000ac9..705bc52 100644
> --- a/xen/include/public/sched.h
> +++ b/xen/include/public/sched.h
> @@ -159,7 +159,8 @@ DEFINE_XEN_GUEST_HANDLE(sched_watchdog_t);
>  #define SHUTDOWN_suspend    2  /* Clean up, save suspend info, kill.         */
>  #define SHUTDOWN_crash      3  /* Tell controller we've crashed.             */
>  #define SHUTDOWN_watchdog   4  /* Restart because watchdog time expired.     */
> -#define SHUTDOWN_MAX        4  /* Maximum valid shutdown reason.             */
> +#define SHUTDOWN_soft_reset 5  /* Domain did soft reset. Clean up and resume.*/
> +#define SHUTDOWN_MAX        5  /* Maximum valid shutdown reason.             */
>  /* ` } */
>  
>  #endif /* __XEN_PUBLIC_SCHED_H__ */
> -- 
> 2.4.2
>