69 static int xen_mce_chrdev_open_count;	/* #times opened */
70 static int xen_mce_chrdev_open_exclu;	/* already open exclusive? */
74 static int xen_mce_chrdev_open(struct inode *inode, struct file *file)  in xen_mce_chrdev_open()
79 	    (xen_mce_chrdev_open_count && (file->f_flags & O_EXCL))) {  in xen_mce_chrdev_open()
82 		return -EBUSY;  in xen_mce_chrdev_open()
85 	if (file->f_flags & O_EXCL)  in xen_mce_chrdev_open()
94 static int xen_mce_chrdev_release(struct inode *inode, struct file *file)  in xen_mce_chrdev_release()
98 	xen_mce_chrdev_open_count--;  in xen_mce_chrdev_release()
111 	int i, err;  in xen_mce_chrdev_read()
118 	err = -EINVAL;  in xen_mce_chrdev_read()
134 		err = -EFAULT;  in xen_mce_chrdev_read()
139 	return err ? err : buf - ubuf;  in xen_mce_chrdev_read()
152 static long xen_mce_chrdev_ioctl(struct file *f, unsigned int cmd,  in xen_mce_chrdev_ioctl()
155 	int __user *p = (int __user *)arg;  in xen_mce_chrdev_ioctl()
158 		return -EPERM;  in xen_mce_chrdev_ioctl()
175 		return -ENOTTY;  in xen_mce_chrdev_ioctl()
219 static int convert_log(struct mc_info *mi)  in convert_log()
221 	struct mcinfo_common *mic;  in convert_log()  local
225 	unsigned int i, j;  in convert_log()
227 	mic = NULL;  in convert_log()
228 	x86_mcinfo_lookup(&mic, mi, MC_TYPE_GLOBAL);  in convert_log()
229 	if (unlikely(!mic)) {  in convert_log()
231 		return -ENODEV;  in convert_log()
236 	mc_global = (struct mcinfo_global *)mic;  in convert_log()
237 	m.mcgstatus = mc_global->mc_gstatus;  in convert_log()
238 	m.apicid = mc_global->mc_apicid;  in convert_log()
245 		return -ENODEV;  in convert_log()
263 	mic = NULL;  in convert_log()
264 	x86_mcinfo_lookup(&mic, mi, MC_TYPE_BANK);  in convert_log()
265 	if (unlikely(!mic)) {  in convert_log()
267 		return -ENODEV;  in convert_log()
271 		if ((!mic) || (mic->size == 0) ||  in convert_log()
272 		    (mic->type != MC_TYPE_GLOBAL   &&  in convert_log()
273 		     mic->type != MC_TYPE_BANK     &&  in convert_log()
274 		     mic->type != MC_TYPE_EXTENDED &&  in convert_log()
275 		     mic->type != MC_TYPE_RECOVERY))  in convert_log()
278 		if (mic->type == MC_TYPE_BANK) {  in convert_log()
279 			mc_bank = (struct mcinfo_bank *)mic;  in convert_log()
280 			m.misc = mc_bank->mc_misc;  in convert_log()
281 			m.status = mc_bank->mc_status;  in convert_log()
282 			m.addr = mc_bank->mc_addr;  in convert_log()
283 			m.tsc = mc_bank->mc_tsc;  in convert_log()
284 			m.bank = mc_bank->mc_bank;  in convert_log()
289 		mic = x86_mcinfo_next(mic);  in convert_log()
295 static int mc_queue_handle(uint32_t flags)  in mc_queue_handle()
298 	int ret = 0;  in mc_queue_handle()
334 	int err;  in xen_mce_work_fn()
355 static irqreturn_t xen_mce_interrupt(int irq, void *dev_id)  in xen_mce_interrupt()
361 static int bind_virq_for_mce(void)  in bind_virq_for_mce()
363 	int ret;  in bind_virq_for_mce()
382 		return -ENOMEM;  in bind_virq_for_mce()
402 static int __init xen_late_init_mcelog(void)  in xen_late_init_mcelog()
404 	int ret;  in xen_late_init_mcelog()
408 		return -ENODEV;  in xen_late_init_mcelog()