9033304a15
When testing for a dom0/initial/privileged domain, make sure the predicate evaluates to a compile-time 0 if CONFIG_XEN_DOM0 isn't enabled. This will make most of the dom0 code evaporate without much more effort. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
67 lines
2.5 KiB
C
67 lines
2.5 KiB
C
/******************************************************************************
|
|
* 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 */
|