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65 lines
2.2 KiB
65 lines
2.2 KiB
/****************************************************************************** |
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* hypervisor.h |
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* |
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* Linux-specific hypervisor handling. |
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* |
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* Copyright (c) 2002-2004, K A Fraser |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License version 2 |
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* as published by the Free Software Foundation; or, when distributed |
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* separately from the Linux kernel or incorporated into other |
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* software packages, subject to the following license: |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this source file (the "Software"), to deal in the Software without |
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* restriction, including without limitation the rights to use, copy, modify, |
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, |
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* and to permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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* IN THE SOFTWARE. |
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*/ |
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#ifndef _ASM_X86_XEN_HYPERVISOR_H |
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#define _ASM_X86_XEN_HYPERVISOR_H |
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extern struct shared_info *HYPERVISOR_shared_info; |
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extern struct start_info *xen_start_info; |
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#include <asm/processor.h> |
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static inline uint32_t xen_cpuid_base(void) |
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{ |
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return hypervisor_cpuid_base("XenVMMXenVMM", 2); |
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} |
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#ifdef CONFIG_XEN |
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extern bool __init xen_hvm_need_lapic(void); |
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static inline bool __init xen_x2apic_para_available(void) |
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{ |
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return xen_hvm_need_lapic(); |
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} |
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#else |
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static inline bool __init xen_x2apic_para_available(void) |
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{ |
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return (xen_cpuid_base() != 0); |
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} |
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#endif |
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#ifdef CONFIG_HOTPLUG_CPU |
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void xen_arch_register_cpu(int num); |
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void xen_arch_unregister_cpu(int num); |
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#endif |
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#endif /* _ASM_X86_XEN_HYPERVISOR_H */
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