xen-os.h revision 315676
1/****************************************************************************** 2 * xen/xen-os.h 3 * 4 * Random collection of macros and definition 5 * 6 * Copyright (c) 2003, 2004 Keir Fraser (on behalf of the Xen team) 7 * All rights reserved. 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a copy 10 * of this software and associated documentation files (the "Software"), to 11 * deal in the Software without restriction, including without limitation the 12 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 13 * sell copies of the Software, and to permit persons to whom the Software is 14 * furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included in 17 * all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 25 * DEALINGS IN THE SOFTWARE. 26 * 27 * $FreeBSD: stable/10/sys/xen/xen-os.h 315676 2017-03-21 09:38:59Z royger $ 28 */ 29 30#ifndef _XEN_XEN_OS_H_ 31#define _XEN_XEN_OS_H_ 32 33#if !defined(__XEN_INTERFACE_VERSION__) 34#define __XEN_INTERFACE_VERSION__ 0x00030208 35#endif 36 37#define GRANT_REF_INVALID 0xffffffff 38 39#ifdef LOCORE 40#define __ASSEMBLY__ 41#endif 42 43#include <machine/xen/xen-os.h> 44 45#include <xen/interface/xen.h> 46 47/* Everything below this point is not included by assembler (.S) files. */ 48#ifndef __ASSEMBLY__ 49 50/* Force a proper event-channel callback from Xen. */ 51void force_evtchn_callback(void); 52 53extern shared_info_t *HYPERVISOR_shared_info; 54 55#ifdef XENHVM 56extern int xen_disable_pv_disks; 57extern int xen_disable_pv_nics; 58#endif 59 60extern bool xen_suspend_cancelled; 61 62enum xen_domain_type { 63 XEN_NATIVE, /* running on bare hardware */ 64 XEN_PV_DOMAIN, /* running in a PV domain */ 65 XEN_HVM_DOMAIN, /* running in a Xen hvm domain */ 66}; 67 68extern enum xen_domain_type xen_domain_type; 69 70static inline int 71xen_domain(void) 72{ 73 return (xen_domain_type != XEN_NATIVE); 74} 75 76static inline int 77xen_pv_domain(void) 78{ 79 return (xen_domain_type == XEN_PV_DOMAIN); 80} 81 82static inline int 83xen_hvm_domain(void) 84{ 85 return (xen_domain_type == XEN_HVM_DOMAIN); 86} 87 88#ifndef xen_mb 89#define xen_mb() mb() 90#endif 91#ifndef xen_rmb 92#define xen_rmb() rmb() 93#endif 94#ifndef xen_wmb 95#define xen_wmb() wmb() 96#endif 97 98#endif /* !__ASSEMBLY__ */ 99 100#endif /* _XEN_XEN_OS_H_ */ 101