| /****************************************************************************** |
| * 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 |
| |
| /* arch/i386/kernel/setup.c */ |
| extern struct shared_info *HYPERVISOR_shared_info; |
| extern struct start_info *xen_start_info; |
| |
| enum xen_domain_type { |
| XEN_NATIVE, /* running on bare hardware */ |
| XEN_PV_DOMAIN, /* running in a PV domain */ |
| XEN_HVM_DOMAIN, /* running in a Xen hvm domain */ |
| }; |
| |
| #ifdef CONFIG_XEN |
| extern enum xen_domain_type xen_domain_type; |
| #else |
| #define xen_domain_type XEN_NATIVE |
| #endif |
| |
| #define xen_domain() (xen_domain_type != XEN_NATIVE) |
| #define xen_pv_domain() (xen_domain() && \ |
| xen_domain_type == XEN_PV_DOMAIN) |
| #define xen_hvm_domain() (xen_domain() && \ |
| xen_domain_type == XEN_HVM_DOMAIN) |
| |
| #ifdef CONFIG_XEN_DOM0 |
| #include <xen/interface/xen.h> |
| |
| #define xen_initial_domain() (xen_pv_domain() && \ |
| xen_start_info->flags & SIF_INITDOMAIN) |
| #else /* !CONFIG_XEN_DOM0 */ |
| #define xen_initial_domain() (0) |
| #endif /* CONFIG_XEN_DOM0 */ |
| |
| #endif /* _ASM_X86_XEN_HYPERVISOR_H */ |
