Release 4.14 arch/x86/kernel/cpu/hypervisor.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 <linux/init.h>
#include <linux/export.h>
#include <asm/processor.h>
#include <asm/hypervisor.h>
static const __initconst struct hypervisor_x86 * const hypervisors[] =
{
#ifdef CONFIG_XEN_PV
&x86_hyper_xen_pv,
#endif
#ifdef CONFIG_XEN_PVHVM
&x86_hyper_xen_hvm,
#endif
&x86_hyper_vmware,
&x86_hyper_ms_hyperv,
#ifdef CONFIG_KVM_GUEST
&x86_hyper_kvm,
#endif
};
const struct hypervisor_x86 *x86_hyper;
EXPORT_SYMBOL(x86_hyper);
static inline void __init
detect_hypervisor_vendor(void)
{
const struct hypervisor_x86 *h, * const *p;
uint32_t pri, max_pri = 0;
for (p = hypervisors; p < hypervisors + ARRAY_SIZE(hypervisors); p++) {
h = *p;
pri = h->detect();
if (pri != 0 && pri > max_pri) {
max_pri = pri;
x86_hyper = h;
}
}
if (max_pri)
pr_info("Hypervisor detected: %s\n", x86_hyper->name);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| H. Peter Anvin | 44 | 47.31% | 1 | 16.67% |
| Jason (Hui) Wang | 30 | 32.26% | 1 | 16.67% |
| Alok N Kataria | 13 | 13.98% | 2 | 33.33% |
| K. Y. Srinivasan | 5 | 5.38% | 1 | 16.67% |
| Chen Yucong | 1 | 1.08% | 1 | 16.67% |
| Total | 93 | 100.00% | 6 | 100.00% |
void __init init_hypervisor_platform(void)
{
detect_hypervisor_vendor();
if (!x86_hyper)
return;
if (x86_hyper->init_platform)
x86_hyper->init_platform();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| H. Peter Anvin | 15 | 53.57% | 1 | 50.00% |
| Thomas Gleixner | 13 | 46.43% | 1 | 50.00% |
| Total | 28 | 100.00% | 2 | 100.00% |
bool __init hypervisor_x2apic_available(void)
{
return x86_hyper &&
x86_hyper->x2apic_available &&
x86_hyper->x2apic_available();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alok N Kataria | 20 | 100.00% | 1 | 100.00% |
| Total | 20 | 100.00% | 1 | 100.00% |
void hypervisor_pin_vcpu(int cpu)
{
if (!x86_hyper)
return;
if (x86_hyper->pin_vcpu)
x86_hyper->pin_vcpu(cpu);
else
WARN_ONCE(1, "vcpu pinning requested but not supported!\n");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Juergen Gross | 35 | 100.00% | 1 | 100.00% |
| Total | 35 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| H. Peter Anvin | 85 | 34.98% | 3 | 15.79% |
| Alok N Kataria | 39 | 16.05% | 3 | 15.79% |
| Juergen Gross | 35 | 14.40% | 1 | 5.26% |
| Jason (Hui) Wang | 30 | 12.35% | 1 | 5.26% |
| Thomas Gleixner | 13 | 5.35% | 1 | 5.26% |
| Vitaly Kuznetsov | 10 | 4.12% | 2 | 10.53% |
| Avi Kivity | 7 | 2.88% | 1 | 5.26% |
| Anupam Chanda | 5 | 2.06% | 1 | 5.26% |
| K. Y. Srinivasan | 5 | 2.06% | 1 | 5.26% |
| Jeremy Fitzhardinge | 5 | 2.06% | 1 | 5.26% |
| Paul Gortmaker | 4 | 1.65% | 1 | 5.26% |
| Prarit Bhargava | 3 | 1.23% | 1 | 5.26% |
| Sheng Yang | 1 | 0.41% | 1 | 5.26% |
| Chen Yucong | 1 | 0.41% | 1 | 5.26% |
| Total | 243 | 100.00% | 19 | 100.00% |
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