1 /* 2 * Common hypervisor code 3 * 4 * Copyright (C) 2008, VMware, Inc. 5 * Author : Alok N Kataria <akataria@vmware.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 15 * NON INFRINGEMENT. See the GNU General Public License for more 16 * details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 21 * 22 */ 23 24 #include <asm/processor.h> 25 #include <asm/vmware.h> 26 #include <asm/mshyperv.h> 27 #include <asm/hypervisor.h> 28 29 static inline void __cpuinit 30 detect_hypervisor_vendor(struct cpuinfo_x86 *c) 31 { 32 if (vmware_platform()) 33 c->x86_hyper_vendor = X86_HYPER_VENDOR_VMWARE; 34 else if (ms_hyperv_platform()) 35 c->x86_hyper_vendor = X86_HYPER_VENDOR_MSFT; 36 else 37 c->x86_hyper_vendor = X86_HYPER_VENDOR_NONE; 38 } 39 40 static inline void __cpuinit 41 hypervisor_set_feature_bits(struct cpuinfo_x86 *c) 42 { 43 if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE) 44 vmware_set_feature_bits(c); 45 else if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_MSFT) 46 ms_hyperv_set_feature_bits(c); 47 return; 48 } 49 50 void __cpuinit init_hypervisor(struct cpuinfo_x86 *c) 51 { 52 detect_hypervisor_vendor(c); 53 hypervisor_set_feature_bits(c); 54 } 55 56 void __init init_hypervisor_platform(void) 57 { 58 init_hypervisor(&boot_cpu_data); 59 if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE) 60 vmware_platform_setup(); 61 } 62