2008-10-27 17:41:46 +00:00
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/*
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* Copyright (C) 2008, VMware, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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2010-05-07 23:57:28 +00:00
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#ifndef _ASM_X86_HYPERVISOR_H
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#define _ASM_X86_HYPERVISOR_H
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2008-10-27 17:41:46 +00:00
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2013-03-04 20:20:21 +00:00
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#ifdef CONFIG_HYPERVISOR_GUEST
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2010-12-21 06:18:48 +00:00
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#include <asm/kvm_para.h>
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2010-12-21 06:18:49 +00:00
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#include <asm/xen/hypervisor.h>
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2010-12-21 06:18:48 +00:00
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2010-05-07 23:57:28 +00:00
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/*
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* x86 hypervisor information
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*/
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struct hypervisor_x86 {
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/* Hypervisor name */
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const char *name;
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/* Detection routine */
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2013-07-25 08:54:35 +00:00
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uint32_t (*detect)(void);
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2010-05-07 23:57:28 +00:00
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/* Platform setup (run once per boot) */
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void (*init_platform)(void);
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2013-01-17 23:44:42 +00:00
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/* X2APIC detection (run once per boot) */
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bool (*x2apic_available)(void);
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2016-08-29 06:48:43 +00:00
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/* pin current vcpu to specified physical cpu (run rarely) */
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void (*pin_vcpu)(int);
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2017-07-28 10:23:12 +00:00
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/* called during init_mem_mapping() to setup early mappings. */
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void (*init_mem_mapping)(void);
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2010-05-07 23:57:28 +00:00
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};
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extern const struct hypervisor_x86 *x86_hyper;
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/* Recognized hypervisors */
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extern const struct hypervisor_x86 x86_hyper_vmware;
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extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
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2017-03-14 17:35:36 +00:00
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extern const struct hypervisor_x86 x86_hyper_xen_pv;
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extern const struct hypervisor_x86 x86_hyper_xen_hvm;
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2012-07-06 17:47:39 +00:00
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extern const struct hypervisor_x86 x86_hyper_kvm;
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2010-05-07 23:57:28 +00:00
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2013-03-04 20:20:21 +00:00
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extern void init_hypervisor_platform(void);
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extern bool hypervisor_x2apic_available(void);
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2016-08-29 06:48:43 +00:00
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extern void hypervisor_pin_vcpu(int cpu);
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2017-07-28 10:23:12 +00:00
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static inline void hypervisor_init_mem_mapping(void)
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{
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if (x86_hyper && x86_hyper->init_mem_mapping)
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x86_hyper->init_mem_mapping();
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}
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2013-03-04 20:20:21 +00:00
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#else
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static inline void init_hypervisor_platform(void) { }
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static inline bool hypervisor_x2apic_available(void) { return false; }
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2017-07-28 10:23:12 +00:00
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static inline void hypervisor_init_mem_mapping(void) { }
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2013-03-04 20:20:21 +00:00
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#endif /* CONFIG_HYPERVISOR_GUEST */
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#endif /* _ASM_X86_HYPERVISOR_H */
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