1 files changed, 129 insertions, 0 deletions
diff --git a/usr/src/uts/i86pc/os/smb_dev.c b/usr/src/uts/i86pc/os/smb_dev.c
new file mode 100644
index 0000000000..db3b2f6962
--- /dev/null
+++ b/usr/src/uts/i86pc/os/smb_dev.c
@@ -0,0 +1,129 @@
+/*
+ * 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 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*
+ * Platform-Specific SMBIOS Subroutines
+ *
+ * The routines in this file form part of <sys/smbios_impl.h> and combine with
+ * the usr/src/common/smbios code to form an in-kernel SMBIOS decoding service.
+ * The SMBIOS entry point is locating by scanning a range of physical memory
+ * assigned to BIOS as described in Section 2 of the DMTF SMBIOS specification.
+ */
+
+#include <sys/smbios_impl.h>
+#include <sys/sysmacros.h>
+#include <sys/errno.h>
+#include <sys/psm.h>
+#include <sys/smp_impldefs.h>
+
+smbios_hdl_t *ksmbios;
+int ksmbios_flags;
+
+smbios_hdl_t *
+smb_open_error(smbios_hdl_t *shp, int *errp, int err)
+{
+	if (shp != NULL)
+		smbios_close(shp);
+
+	if (errp != NULL)
+		*errp = err;
+
+	if (ksmbios == NULL)
+		cmn_err(CE_CONT, "?SMBIOS not loaded (%s)", smbios_errmsg(err));
+
+	return (NULL);
+}
+
+smbios_hdl_t *
+smbios_open(const char *file, int version, int flags, int *errp)
+{
+	smbios_hdl_t *shp = NULL;
+	smbios_entry_t ep;
+	caddr_t stbuf, bios, p, q;
+	size_t bioslen;
+	int err;
+
+	if (file != NULL || (flags & ~SMB_O_MASK))
+		return (smb_open_error(shp, errp, ESMB_INVAL));
+
+	bioslen = SMB_RANGE_LIMIT - SMB_RANGE_START + 1;
+	bios = psm_map_phys(SMB_RANGE_START, bioslen, PSM_PROT_READ);
+
+	if (bios == NULL)
+		return (smb_open_error(shp, errp, ESMB_MAPDEV));
+
+	for (p = bios, q = bios + bioslen; p < q; p += 16) {
+		if (strncmp(p, SMB_ENTRY_EANCHOR, SMB_ENTRY_EANCHORLEN) == 0)
+			break;
+	}
+
+	if (p >= q) {
+		psm_unmap_phys(bios, bioslen);
+		return (smb_open_error(shp, errp, ESMB_NOTFOUND));
+	}
+
+	bcopy(p, &ep, sizeof (smbios_entry_t));
+	psm_unmap_phys(bios, bioslen);
+	bios = psm_map_phys(ep.smbe_staddr, ep.smbe_stlen, PSM_PROT_READ);
+
+	if (bios == NULL)
+		return (smb_open_error(shp, errp, ESMB_MAPDEV));
+
+	stbuf = smb_alloc(ep.smbe_stlen);
+	bcopy(bios, stbuf, ep.smbe_stlen);
+	psm_unmap_phys(bios, ep.smbe_stlen);
+	shp = smbios_bufopen(&ep, stbuf, ep.smbe_stlen, version, flags, &err);
+
+	if (shp == NULL) {
+		smb_free(stbuf, ep.smbe_stlen);
+		return (smb_open_error(shp, errp, err));
+	}
+
+	if (ksmbios == NULL) {
+		cmn_err(CE_CONT, "?SMBIOS v%u.%u loaded (%u bytes)",
+		    ep.smbe_major, ep.smbe_minor, ep.smbe_stlen);
+	}
+
+	shp->sh_flags |= SMB_FL_BUFALLOC;
+	return (shp);
+}
+
+/*ARGSUSED*/
+smbios_hdl_t *
+smbios_fdopen(int fd, int version, int flags, int *errp)
+{
+	return (smb_open_error(NULL, errp, ENOTSUP));
+}
+
+/*ARGSUSED*/
+int
+smbios_write(smbios_hdl_t *shp, int fd)
+{
+	return (smb_set_errno(shp, ENOTSUP));
+}