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