diff options
Diffstat (limited to 'unmodified_drivers/linux-2.6/platform-pci/panic-handler.c')
-rw-r--r-- | unmodified_drivers/linux-2.6/platform-pci/panic-handler.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/unmodified_drivers/linux-2.6/platform-pci/panic-handler.c b/unmodified_drivers/linux-2.6/platform-pci/panic-handler.c new file mode 100644 index 0000000000..91bc03549b --- /dev/null +++ b/unmodified_drivers/linux-2.6/platform-pci/panic-handler.c @@ -0,0 +1,54 @@ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/notifier.h> +#include <asm/hypervisor.h> + +MODULE_LICENSE("GPL"); + +#ifdef __ia64__ +static void +xen_panic_hypercall(struct unw_frame_info *info, void *arg) +{ + current->thread.ksp = (__u64)info->sw - 16; + HYPERVISOR_shutdown(SHUTDOWN_crash); + /* we're never actually going to get here... */ +} +#endif + +static int +xen_panic_event(struct notifier_block *this, unsigned long event, void *ptr) +{ +#ifdef __ia64__ + unw_init_running(xen_panic_hypercall, NULL); +#else /* !__ia64__ */ + HYPERVISOR_shutdown(SHUTDOWN_crash); +#endif + /* we're never actually going to get here... */ + return NOTIFY_DONE; +} +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) +static struct notifier_block xen_panic_block = { + xen_panic_event, NULL, 0 /* try to go last */ +}; +#else +static struct notifier_block xen_panic_block = { + .notifier_call= xen_panic_event, + .next= NULL, + .priority= 0/* try to go last */ +}; +#endif /*LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)*/ + +static int __init setup_panic_event(void) +{ +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) + notifier_chain_register(&panic_notifier_list, &xen_panic_block); +#else + atomic_notifier_chain_register(&panic_notifier_list, &xen_panic_block); +#endif /*LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)*/ + return 0; +} + +int xen_panic_handler_init(void) +{ + return setup_panic_event(); +} |