/*ARGSUSED*/
int
bootprog(char *bpath, char *bargs, boolean_t user_specified_filename)
{
boolean_t once = B_FALSE;
systype = set_fstype(v2path, bpath);
loop:
/*
* Beware: the following code may be executed twice, with different
* bpath's if we discover a redirection file.
*/
if (verbosemode) {
printf("device path '%s'\n", bpath);
if (strcmp(bpath, v2path) != 0)
printf("client path '%s'\n", v2path);
}
if (mountroot(bpath) != SUCCESS)
prom_panic("Could not mount filesystem.");
/*
* kernname (default-name) might have changed if mountroot() called
* boot_nfs_mountroot(), and it called set_default_filename().
*/
if (!user_specified_filename)
(void) strcpy(filename, kernname);
if (verbosemode)
printf("standalone = `%s', args = `%s'\n", filename, bargs);
set_client_bootargs(filename, bargs);
if (!once &&
(strcmp(systype, "ufs") == 0 || strcmp(systype, "hsfs") == 0)) {
char redirect[OBP_MAXPATHLEN];
post_mountroot(filename, redirect);
/*
* If we return at all, it's because we discovered
* a redirection file - the 'redirect' string now contains
* the name of the disk slice we should be looking at.
*
* Unmount the filesystem, tweak the boot path and retry
* the whole operation one more time.
*/
closeall(1);
once = B_TRUE;
redirect_boot_path(bpath, redirect);
if (verbosemode)
printf("%sboot: using '%s'\n", systype, bpath);
goto loop;
/*NOTREACHED*/
}
return (0);
}
/*ARGSUSED*/
int
main(void *cookie, char **argv, int argc)
{
/*
* bpath is the boot device path buffer.
* bargs is the boot arguments buffer.
*/
static char bpath[OBP_MAXPATHLEN], bargs[OBP_MAXPATHLEN];
boolean_t user_specified_filename;
prom_init("boot", cookie);
fiximp();
system_check();
dprintf("\nboot: V%d /boot interface.\n", BO_VERSION);
#ifdef HALTBOOT
prom_enter_mon();
#endif /* HALTBOOT */
init_memlists();
#ifdef DEBUG_LISTS
dprintf("Physmem avail:\n");
if (debug) print_memlist(pfreelistp);
dprintf("Virtmem avail:\n");
if (debug) print_memlist(vfreelistp);
dprintf("Phys installed:\n");
if (debug) print_memlist(pinstalledp);
prom_enter_mon();
#endif /* DEBUG_LISTS */
/*
* Initialize the default filename (exported as "default-name" and
* used by kadb).
*/
set_default_filename(defname);
/*
* Parse the arguments ASAP in case there are any flags which may
* affect execution.
*/
/*
* filename is the path to the standalone. Initialize it to the empty
* string so we can tell whether the user specified it in the
* arguments.
*/
filename[0] = '\0';
/*
* Fetch the boot arguments from the PROM and split the filename off
* if it's there.
*/
init_bootargs(filename, sizeof (filename), bargs, sizeof (bargs));
/*
* kadb was delivered as a standalone, and as such, people got used to
* typing `boot kadb'. kmdb isn't a standalone - it is loaded by krtld
* as just another kernel module. For compatibility, though, when we
* see an attempt to `boot kadb' or `boot kmdb', we'll transform that
* into a `boot -k' (or equivalent).
*/
if (strcmp(filename, "kmdb") == 0 || strcmp(filename, "kadb") == 0) {
boothowto |= RB_KMDB;
*filename = '\0'; /* let boot figure out which unix to use */
}
bootflags(bargs, sizeof (bargs));
user_specified_filename = (filename[0] != '\0');
/* Fetch the boot path from the PROM. */
(void) strncpy(bpath, prom_bootpath(), sizeof (bpath) - 1);
bpath[sizeof (bpath) - 1] = '\0';
dprintf("arch: %s\n", is_sun4v ? "sun4v" : "sun4u");
dprintf("bootpath: 0x%p %s\n", (void *)bpath, bpath);
dprintf("bootargs: 0x%p %s\n", (void *)bargs, bargs);
dprintf("filename: 0x%p %s\n", (void *)filename, filename);
dprintf("kernname: 0x%p %s\n", (void *)kernname, kernname);
/*
* *v2path will be exported to the standalone as the boot-path boot
* property.
*/
v2path = bpath;
/*
* Our memory lists should be "up" by this time
*/
setup_bootops();
/*
* If bpath is a network card, set v2path to a copy of bpath with the
* options stripped off.
*/
mangle_os_bootpath(bpath);
/*
* Not necessary on sun4v as nvram is virtual
* and kept by the guest manager on the SP.
*/
if (!is_sun4v) {
retain_nvram_page();
}
if (bootprog(bpath, bargs, user_specified_filename) == 0) {
post_mountroot(filename, NULL);
/*NOTREACHED*/
}
return (0);
}
