[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v11 01/11] xen: introduce SHUTDOWN_soft_reset shutdown reason
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@xxxxxxxxxx> Acked-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> --- Changes since v10: - None --- xen/common/shutdown.c | 6 ++++++ xen/include/public/sched.h | 11 ++++++++++- 2 files changed, 16 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..2219696 100644 --- a/xen/include/public/sched.h +++ b/xen/include/public/sched.h @@ -159,7 +159,16 @@ 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. */ + +/* + * Domain asked to perform 'soft reset' for it. The expected behavior is to + * reset internal Xen state for the domain returning it to the point where it + * was created but leaving the domain's memory contents and vCPU contexts + * intact. This will allow the domain to start over and set up all Xen specific + * interfaces again. + */ +#define SHUTDOWN_soft_reset 5 +#define SHUTDOWN_MAX 5 /* Maximum valid shutdown reason. */ /* ` } */ #endif /* __XEN_PUBLIC_SCHED_H__ */ -- 2.4.3 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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