linux/arch/x86/kernel/cpu/hypervisor.c
Thomas Gleixner 2d826404f0 x86: Move tsc_calibration to x86_init_ops
TSC calibration is modified by the vmware hypervisor and paravirt by
separate means. Moorestown wants to add its own calibration routine as
well. So make calibrate_tsc a proper x86_init_ops function and
override it by paravirt or by the early setup of the vmware
hypervisor.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-08-31 09:35:47 +02:00

57 lines
1.6 KiB
C

/*
* Common hypervisor code
*
* Copyright (C) 2008, VMware, Inc.
* Author : Alok N Kataria <akataria@vmware.com>
*
* 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
* (at your option) 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, GOOD TITLE or
* NON INFRINGEMENT. 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 St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <asm/processor.h>
#include <asm/vmware.h>
#include <asm/hypervisor.h>
static inline void __cpuinit
detect_hypervisor_vendor(struct cpuinfo_x86 *c)
{
if (vmware_platform())
c->x86_hyper_vendor = X86_HYPER_VENDOR_VMWARE;
else
c->x86_hyper_vendor = X86_HYPER_VENDOR_NONE;
}
static inline void __cpuinit
hypervisor_set_feature_bits(struct cpuinfo_x86 *c)
{
if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE) {
vmware_set_feature_bits(c);
return;
}
}
void __cpuinit init_hypervisor(struct cpuinfo_x86 *c)
{
detect_hypervisor_vendor(c);
hypervisor_set_feature_bits(c);
}
void __init init_hypervisor_platform(void)
{
init_hypervisor(&boot_cpu_data);
if (boot_cpu_data.x86_hyper_vendor == X86_HYPER_VENDOR_VMWARE)
vmware_platform_setup();
}