PSARC/2008/760 Boot configuration Service

PSARC/2009/091 Reboot to firmware
PSARC/2009/092 libgrubmgmt - library for GRUB menu management
6768468 Introducing svc:/system/boot-config service
6775160 reboot -f ignores active BE and resets zfs pool bootfs property
6760845 Add checksum verification when loading the new kernel and boot archive for fast reboot
6815215 quiesce_active should be added to MUTEX_NOT_HELD()

1 files changed, 193 insertions, 0 deletions

diff --git a/usr/src/lib/libscf/common/highlevel.c b/usr/src/lib/libscf/common/highlevel.c
new file mode 100644
index 0000000000..6444d260c2
--- /dev/null
+++ b/usr/src/lib/libscf/common/highlevel.c
@@ -0,0 +1,193 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (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 2009 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ * This file contains high level functions used by multiple utilities.
+ */
+
+#include "libscf_impl.h"
+
+#include <assert.h>
+#include <libuutil.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/systeminfo.h>
+#include <sys/uadmin.h>
+#include <sys/utsname.h>
+
+#ifdef	__x86
+#include <smbios.h>
+
+/*
+ * Check whether the platform is on the fastreboot_blacklist.
+ * Return 1 if the platform has been blacklisted, 0 otherwise.
+ */
+static int
+scf_is_fb_blacklisted(void)
+{
+	smbios_hdl_t *shp;
+	smbios_system_t sys;
+	smbios_info_t info;
+
+	id_t id;
+	int err;
+	int i;
+
+	scf_simple_prop_t *prop = NULL;
+	ssize_t numvals;
+	char *platform_name;
+
+	int blacklisted = 0;
+
+	/*
+	 * If there's no SMBIOS, assume it's blacklisted.
+	 */
+	if ((shp = smbios_open(NULL, SMB_VERSION, 0, &err)) == NULL)
+		return (1);
+
+	/*
+	 * If we can't read system info, assume it's blacklisted.
+	 */
+	if ((id = smbios_info_system(shp, &sys)) == SMB_ERR ||
+	    smbios_info_common(shp, id, &info) == SMB_ERR) {
+		blacklisted = 1;
+		goto fb_out;
+	}
+
+	/*
+	 * If we can't read the "platforms" property from property group
+	 * BOOT_CONFIG_PG_FBBLACKLIST, assume no platforms have
+	 * been blacklisted.
+	 */
+	if ((prop = scf_simple_prop_get(NULL, FMRI_BOOT_CONFIG,
+	    BOOT_CONFIG_PG_FBBLACKLIST, "platforms")) == NULL)
+		goto fb_out;
+
+	numvals = scf_simple_prop_numvalues(prop);
+
+	for (i = 0; i < numvals; i++) {
+		platform_name = scf_simple_prop_next_astring(prop);
+		if (platform_name == NULL)
+			break;
+		if (strcmp(platform_name, info.smbi_product) == 0) {
+			blacklisted = 1;
+			break;
+		}
+	}
+
+fb_out:
+	smbios_close(shp);
+	scf_simple_prop_free(prop);
+
+	return (blacklisted);
+}
+#endif	/* __x86 */
+
+/*
+ * Get config properties from svc:/system/boot-config:default.
+ * It prints errors with uu_warn().
+ */
+void
+scf_get_boot_config(uint8_t *boot_config)
+{
+	assert(boot_config);
+	*boot_config = 0;
+
+#ifndef	__x86
+	return;
+#else
+	{
+		/*
+		 * Property vector for BOOT_CONFIG_PG_PARAMS property group.
+		 */
+		scf_propvec_t ua_boot_config[] = {
+			{ "fastreboot_default", NULL, SCF_TYPE_BOOLEAN, NULL,
+			    UA_FASTREBOOT_DEFAULT },
+			{ FASTREBOOT_ONPANIC, NULL, SCF_TYPE_BOOLEAN, NULL,
+			    UA_FASTREBOOT_ONPANIC },
+			{ NULL }
+		};
+		scf_propvec_t	*prop;
+
+		for (prop = ua_boot_config; prop->pv_prop != NULL; prop++)
+			prop->pv_ptr = boot_config;
+		prop = NULL;
+		if (scf_read_propvec(FMRI_BOOT_CONFIG, BOOT_CONFIG_PG_PARAMS,
+		    B_TRUE, ua_boot_config, &prop) != SCF_FAILED) {
+			/*
+			 * Unset both flags if the platform has been
+			 * blacklisted.
+			 */
+			if (scf_is_fb_blacklisted())
+				*boot_config &= ~(UA_FASTREBOOT_DEFAULT |
+				    UA_FASTREBOOT_ONPANIC);
+			return;
+		}
+#if defined(FASTREBOOT_DEBUG)
+		if (prop != NULL) {
+			(void) uu_warn("Service %s property '%s/%s' "
+			    "not found.\n", FMRI_BOOT_CONFIG,
+			    BOOT_CONFIG_PG_PARAMS, prop->pv_prop);
+		} else {
+			(void) uu_warn("Unable to read service %s "
+			    "property '%s': %s\n", FMRI_BOOT_CONFIG,
+			    BOOT_CONFIG_PG_PARAMS, scf_strerror(scf_error()));
+		}
+#endif	/* FASTREBOOT_DEBUG */
+	}
+#endif	/* __x86 */
+}
+
+/*
+ * Check whether Fast Reboot is the default operating mode.
+ * Return 0 if
+ *   1. the platform is xVM
+ * or
+ *   2. svc:/system/boot-config:default service doesn't exist,
+ * or
+ *   3. property "fastreboot_default" doesn't exist,
+ * or
+ *   4. value of property "fastreboot_default" is set to 0.
+ * or
+ *   5. the platform has been blacklisted.
+ * Return non-zero otherwise.
+ */
+int
+scf_is_fastboot_default(void)
+{
+	uint8_t	boot_config = 0;
+	char procbuf[SYS_NMLN];
+
+	/*
+	 * If we are on xVM, do not fast reboot by default.
+	 */
+	if (sysinfo(SI_PLATFORM, procbuf, sizeof (procbuf)) == -1 ||
+	    strcmp(procbuf, "i86xpv") == 0)
+		return (0);
+
+	scf_get_boot_config(&boot_config);
+	return (boot_config & UA_FASTREBOOT_DEFAULT);
+}