Alok Kataria | 88b094f | 2008-10-27 10:41:46 -0700 | [diff] [blame] | 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 | |
| 27 | static inline void __cpuinit |
| 28 | detect_hypervisor_vendor(struct cpuinfo_x86 *c) |
| 29 | { |
| 30 | if (vmware_platform()) { |
| 31 | c->x86_hyper_vendor = X86_HYPER_VENDOR_VMWARE; |
| 32 | } else { |
| 33 | c->x86_hyper_vendor = X86_HYPER_VENDOR_NONE; |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | unsigned long get_hypervisor_tsc_freq(void) |
| 38 | { |
| 39 | if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE) |
| 40 | return vmware_get_tsc_khz(); |
| 41 | return 0; |
| 42 | } |
| 43 | |
Alok Kataria | eca0cd0 | 2008-10-31 12:01:58 -0700 | [diff] [blame^] | 44 | static inline void __cpuinit |
| 45 | hypervisor_set_feature_bits(struct cpuinfo_x86 *c) |
| 46 | { |
| 47 | if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE) { |
| 48 | vmware_set_feature_bits(c); |
| 49 | return; |
| 50 | } |
| 51 | } |
| 52 | |
Alok Kataria | 88b094f | 2008-10-27 10:41:46 -0700 | [diff] [blame] | 53 | void __cpuinit init_hypervisor(struct cpuinfo_x86 *c) |
| 54 | { |
| 55 | detect_hypervisor_vendor(c); |
Alok Kataria | eca0cd0 | 2008-10-31 12:01:58 -0700 | [diff] [blame^] | 56 | hypervisor_set_feature_bits(c); |
Alok Kataria | 88b094f | 2008-10-27 10:41:46 -0700 | [diff] [blame] | 57 | } |