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- /*
- * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- /** @file
- *
- * VMware backdoor mechanism
- *
- * Based on the unofficial documentation at
- *
- * http://sites.google.com/site/chitchatvmback/backdoor
- *
- */
-
- #include <stdint.h>
- #include <errno.h>
- #include <ipxe/vmware.h>
-
- /**
- * Detect VMware presence
- *
- * @ret rc Return status code
- */
- int vmware_present ( void ) {
- uint32_t version;
- uint32_t magic;
- uint32_t product_type;
-
- /* Perform backdoor call */
- vmware_cmd_get_version ( &version, &magic, &product_type );
-
- /* Check for VMware presence */
- if ( magic != VMW_MAGIC ) {
- DBGC ( VMW_MAGIC, "VMware not present\n" );
- return -ENOENT;
- }
-
- DBGC ( VMW_MAGIC, "VMware product type %04x version %08x detected\n",
- product_type, version );
- return 0;
- }
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