OpenSolaris Launch

1 files changed, 102 insertions, 0 deletions

diff --git a/usr/src/uts/intel/ia32/os/bootdev.c b/usr/src/uts/intel/ia32/os/bootdev.c
new file mode 100644
index 0000000000..4a56efea3f
--- /dev/null
+++ b/usr/src/uts/intel/ia32/os/bootdev.c
@@ -0,0 +1,102 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/modctl.h>
+#include <sys/sunddi.h>
+
+/* internal global data */
+static struct modlmisc modlmisc = {
+	&mod_miscops, "bootdev misc module %I%"
+};
+
+static struct modlinkage modlinkage = {
+	MODREV_1, (void *)&modlmisc, NULL
+};
+
+int
+_init()
+{
+	return (mod_install(&modlinkage));
+}
+
+int
+_fini()
+{
+	return (mod_remove(&modlinkage));
+}
+
+int
+_info(struct modinfo *modinfop)
+{
+	return (mod_info(&modlinkage, modinfop));
+}
+
+/*
+ * convert a prom device path to an equivalent path in /devices
+ * Does not deal with aliases.  Does deal with pathnames which
+ * are not fully qualified.  This routine is generalized
+ * to work across several flavors of OBP
+ */
+int
+i_promname_to_devname(char *prom_name, char *ret_buf)
+{
+	if (prom_name == NULL || ret_buf == NULL ||
+	    (strlen(prom_name) >= MAXPATHLEN)) {
+		return (EINVAL);
+	}
+	if (i_ddi_prompath_to_devfspath(prom_name, ret_buf) != DDI_SUCCESS)
+		return (EINVAL);
+
+	return (0);
+}
+
+/*
+ * If bootstring contains a device path, we need to convert to a format
+ * the prom will understand.  To do so, we convert the existing path to
+ * a prom-compatible path and return the value of new_path.  If the
+ * caller specifies new_path as NULL, we allocate an appropriately
+ * sized new_path on behalf of the caller.  If the caller invokes this
+ * function with new_path = NULL, they must do so from a context in
+ * which it is safe to perform a sleeping memory allocation.
+ *
+ * NOTE: Intel does not have a real PROM, so the implementation
+ *       simply returns a copy of the string passed in.
+ */
+char *
+i_convert_boot_device_name(char *cur_path, char *new_path, size_t *len)
+{
+	if (new_path != NULL) {
+		(void) snprintf(new_path, *len, "%s", cur_path);
+		return (new_path);
+	} else {
+		*len = strlen(cur_path) + 1;
+		new_path = kmem_alloc(*len, KM_SLEEP);
+		(void) snprintf(new_path, *len, "%s", cur_path);
+		return (new_path);
+	}
+}