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src/arch/x86/interface/vmware/vmware.c
62 строки
2 KB
Michael Brown
[vmware] Expose GuestRPC mechanism in 64-bit builds
05 янв 2016, 20:20
05 янв 2016, 20:20
dd48599
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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; }