projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 88b094fb AK |
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> | |
| 4e42ebd5 | 26 | #include <asm/hypervisor.h> |
| 88b094fb AK |
27 | |
| 28 | static inline void __cpuinit | |
| 29 | detect_hypervisor_vendor(struct cpuinfo_x86 *c) | |
| 30 | { | |
| 31 | if (vmware_platform()) { | |
| 32 | c->x86_hyper_vendor = X86_HYPER_VENDOR_VMWARE; | |
| 33 | } else { | |
| 34 | c->x86_hyper_vendor = X86_HYPER_VENDOR_NONE; | |
| 35 | } | |
| 36 | } | |
| 37 | ||
| 38 | unsigned long get_hypervisor_tsc_freq(void) | |
| 39 | { | |
| 40 | if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE) | |
| 41 | return vmware_get_tsc_khz(); | |
| 42 | return 0; | |
| 43 | } | |
| 44 | ||
| eca0cd02 AK |
45 | static inline void __cpuinit |
| 46 | hypervisor_set_feature_bits(struct cpuinfo_x86 *c) | |
| 47 | { | |
| 48 | if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE) { | |
| 49 | vmware_set_feature_bits(c); | |
| 50 | return; | |
| 51 | } | |
| 52 | } | |
| 53 | ||
| 88b094fb AK |
54 | void __cpuinit init_hypervisor(struct cpuinfo_x86 *c) |
| 55 | { | |
| 56 | detect_hypervisor_vendor(c); | |
| eca0cd02 | 57 | hypervisor_set_feature_bits(c); |
| 88b094fb | 58 | } |