1 /*-
53 _Static_assert(sizeof(struct bootargs) == BOOTARGS_SIZE, "Bootarg size bad");
97 	initial_howto = kargs->howto;  in main()
98 	initial_bootdev = kargs->bootdev;  in main()
99 	initial_bootinfo = kargs->bootinfo ?  in main()
100 	    (struct bootinfo *)PTOV(kargs->bootinfo) : NULL;  in main()
102 	/* Initialize the v86 register set to a known-good state. */  in main()
134 	 * detect ACPI for future reference. This may set console to comconsole  in main()
140 	 * XXX Chicken-and-egg problem; we want to have console output early,  in main()
141 	 * but some console attributes may depend on reading from eg. the boot  in main()
145 	 * If the previous boot stage has requested a serial console,  in main()
151 			setenv("console", "comconsole vidconsole", 1);  in main()
153 			setenv("console", "vidconsole comconsole", 1);  in main()
155 		setenv("console", "comconsole", 1);  in main()
157 		setenv("console", "nullconsole", 1);  in main()
173 	if (kargs->bootinfo == 0) {  in main()
178 		if (kargs->bootflags & KARGS_FLAGS_PXE)  in main()
179 			pxe_enable(kargs->pxeinfo ?  in main()
180 			    PTOV(kargs->pxeinfo) : NULL);  in main()
181 		else if (kargs->bootflags & KARGS_FLAGS_CD)  in main()
203 	if ((kargs->bootflags & KARGS_EXTARGS_ZFS) == KARGS_EXTARGS_ZFS) {  in main()
217 	 * have if the extarg size exactly matches the size of the  in main()
218 	 * geli_boot_args struct during that pre-flag era.  in main()
224 		if (zargs->size > offsetof(struct zfs_boot_args, gelidata)) {  in main()
225 			gbdata = &zargs->gelidata;  in main()
229 	if ((kargs->bootflags & KARGS_FLAGS_EXTARG) != 0) {  in main()
231 		if ((kargs->bootflags & KARGS_FLAGS_GELI) ||  in main()
232 		    gargs->size == LEGACY_GELI_ARGS_SIZE) {  in main()
233 			gbdata = &gargs->gelidata;  in main()
246 		initial_bootinfo->bi_basemem = bios_basemem / 1024;  in main()
247 		initial_bootinfo->bi_extmem = bios_extmem / 1024;  in main()
283 	int			biosdev = -1;  in extract_currdev()
288 	/* new-style boot loaders such as pxeldr and cdldr */  in extract_currdev()
289 	if (kargs->bootinfo == 0) {  in extract_currdev()
290 		if ((kargs->bootflags & KARGS_FLAGS_CD) != 0) {  in extract_currdev()
294 		} else if ((kargs->bootflags & KARGS_FLAGS_PXE) != 0) {  in extract_currdev()
300 			new_currdev.disk.d_slice = -1;  in extract_currdev()
302 			biosdev = -1;  in extract_currdev()
305 	} else if ((kargs->bootflags & KARGS_FLAGS_ZFS) != 0) {  in extract_currdev()
311 		    zargs->size >=  in extract_currdev()
314 			new_currdev.zfs.pool_guid = zargs->pool;  in extract_currdev()
315 			new_currdev.zfs.root_guid = zargs->root;  in extract_currdev()
316 			if (zargs->size >= sizeof(*zargs) &&  in extract_currdev()
317 			    zargs->primary_vdev != 0) {  in extract_currdev()
318 				sprintf(buf, "%llu", zargs->primary_pool);  in extract_currdev()
320 				sprintf(buf, "%llu", zargs->primary_vdev);  in extract_currdev()
325 			new_currdev.zfs.pool_guid = kargs->zfspool;  in extract_currdev()
333 				setenv("zfs-bootonce", bootonce, 1);  in extract_currdev()
341 		/* The passed-in boot device is bad */  in extract_currdev()
342 		new_currdev.disk.d_slice = -1;  in extract_currdev()
344 		biosdev = -1;  in extract_currdev()
346 		new_currdev.disk.d_slice = B_SLICE(initial_bootdev) - 1;  in extract_currdev()
348 		biosdev = initial_bootinfo->bi_bios_dev;  in extract_currdev()
354 		 * lowest-numbered disk type (ie. SCSI when IDE also exists).  in extract_currdev()
369 	if ((new_currdev.dd.d_dev->dv_type == bioshd.dv_type) &&  in extract_currdev()
370 	    ((new_currdev.dd.d_unit = bd_bios2unit(biosdev)) == -1)) {  in extract_currdev()
378 	if (new_currdev.dd.d_dev->dv_type == DEVT_ZFS)  in extract_currdev()
393 		if (devsw[i]->dv_cleanup != NULL)  in command_reboot()
394 			(devsw[i]->dv_cleanup)();  in command_reboot()