88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
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/******************************************************************************
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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_IA64_XEN_HYPERVISOR_H
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#define _ASM_IA64_XEN_HYPERVISOR_H
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#include <linux/err.h>
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#include <xen/interface/xen.h>
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#include <xen/interface/version.h> /* to compile feature.c */
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#include <xen/features.h> /* to comiple xen-netfront.c */
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#include <asm/xen/hypercall.h>
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/* xen_domain_type is set before executing any C code by early_xen_setup */
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enum xen_domain_type {
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XEN_NATIVE, /* running on bare hardware */
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XEN_PV_DOMAIN, /* running in a PV domain */
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XEN_HVM_DOMAIN, /* running in a Xen hvm domain*/
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};
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#ifdef CONFIG_XEN
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extern enum xen_domain_type xen_domain_type;
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#else
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#define xen_domain_type XEN_NATIVE
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#endif
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#define xen_domain() (xen_domain_type != XEN_NATIVE)
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#define xen_pv_domain() (xen_domain() && \
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xen_domain_type == XEN_PV_DOMAIN)
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#define xen_hvm_domain() (xen_domain() && \
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xen_domain_type == XEN_HVM_DOMAIN)
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#ifdef CONFIG_XEN_DOM0
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#define xen_initial_domain() (xen_pv_domain() && \
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(xen_start_info->flags & SIF_INITDOMAIN))
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#else
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#define xen_initial_domain() (0)
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#endif
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#ifdef CONFIG_XEN
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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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void __init xen_setup_vcpu_info_placement(void);
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void force_evtchn_callback(void);
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/* for drivers/xen/balloon/balloon.c */
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#ifdef CONFIG_XEN_SCRUB_PAGES
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#define scrub_pages(_p, _n) memset((void *)(_p), 0, (_n) << PAGE_SHIFT)
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#else
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#define scrub_pages(_p, _n) ((void)0)
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#endif
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/* For setup_arch() in arch/ia64/kernel/setup.c */
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void xen_ia64_enable_opt_feature(void);
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#endif
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#endif /* _ASM_IA64_XEN_HYPERVISOR_H */
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