acpi_pad: build only on X86
[linux-2.6/linux-acpi-2.6.git] / arch / x86 / kernel / cpu / hypervisor.c
blobfb5b86af0b017add1b7ed78ba869f3e5dd063a48
1 /*
2 * Common hypervisor code
4 * Copyright (C) 2008, VMware, Inc.
5 * Author : Alok N Kataria <akataria@vmware.com>
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.
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.
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.
24 #include <asm/processor.h>
25 #include <asm/vmware.h>
26 #include <asm/hypervisor.h>
28 static inline void __cpuinit
29 detect_hypervisor_vendor(struct cpuinfo_x86 *c)
31 if (vmware_platform()) {
32 c->x86_hyper_vendor = X86_HYPER_VENDOR_VMWARE;
33 } else {
34 c->x86_hyper_vendor = X86_HYPER_VENDOR_NONE;
38 unsigned long get_hypervisor_tsc_freq(void)
40 if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE)
41 return vmware_get_tsc_khz();
42 return 0;
45 static inline void __cpuinit
46 hypervisor_set_feature_bits(struct cpuinfo_x86 *c)
48 if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE) {
49 vmware_set_feature_bits(c);
50 return;
54 void __cpuinit init_hypervisor(struct cpuinfo_x86 *c)
56 detect_hypervisor_vendor(c);
57 hypervisor_set_feature_bits(c);