xenpmap.h revision 1.21
1 /* $NetBSD: xenpmap.h,v 1.21 2008/10/24 22:06:06 jym Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 2004 Christian Limpach. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Christian Limpach. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 35 #ifndef _XEN_XENPMAP_H_ 36 #define _XEN_XENPMAP_H_ 37 #include "opt_xen.h" 38 39 #define INVALID_P2M_ENTRY (~0UL) 40 41 void xpq_queue_machphys_update(paddr_t, paddr_t); 42 void xpq_queue_invlpg(vaddr_t); 43 void xpq_queue_pte_update(paddr_t, pt_entry_t); 44 void xpq_queue_pt_switch(paddr_t); 45 void xpq_flush_queue(void); 46 void xpq_queue_set_ldt(vaddr_t, uint32_t); 47 void xpq_queue_tlb_flush(void); 48 void xpq_queue_pin_table(paddr_t); 49 void xpq_queue_unpin_table(paddr_t); 50 int xpq_update_foreign(paddr_t, pt_entry_t, int); 51 52 extern unsigned long *xpmap_phys_to_machine_mapping; 53 54 /* 55 * On Xen-2, the start of the day virtual memory starts at KERNTEXTOFF 56 * (0xc0100000). On Xen-3 for domain0 it starts at KERNBASE (0xc0000000). 57 * So the offset between physical and virtual address is different on 58 * Xen-2 and Xen-3 for domain0. 59 * starting with xen-3.0.2, we can add notes so that virtual memory starts 60 * at KERNBASE for domU as well. 61 */ 62 #if defined(XEN3) && (defined(DOM0OPS) || !defined(XEN_COMPAT_030001)) 63 #define XPMAP_OFFSET 0 64 #else 65 #define XPMAP_OFFSET (KERNTEXTOFF - KERNBASE) 66 #endif 67 68 #define mfn_to_pfn(mfn) (machine_to_phys_mapping[(mfn)]) 69 #define pfn_to_mfn(pfn) (xpmap_phys_to_machine_mapping[(pfn)]) 70 71 static __inline paddr_t 72 xpmap_mtop(paddr_t mpa) 73 { 74 return ((machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT) + 75 XPMAP_OFFSET) | (mpa & ~PG_FRAME); 76 } 77 78 static __inline paddr_t 79 xpmap_mtop_masked(paddr_t mpa) 80 { 81 return ((machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT) + 82 XPMAP_OFFSET); 83 } 84 85 static __inline paddr_t 86 xpmap_ptom(paddr_t ppa) 87 { 88 return (((paddr_t)xpmap_phys_to_machine_mapping[(ppa - 89 XPMAP_OFFSET) >> PAGE_SHIFT]) << PAGE_SHIFT) 90 | (ppa & ~PG_FRAME); 91 } 92 93 static __inline paddr_t 94 xpmap_ptom_masked(paddr_t ppa) 95 { 96 return (((paddr_t)xpmap_phys_to_machine_mapping[(ppa - 97 XPMAP_OFFSET) >> PAGE_SHIFT]) << PAGE_SHIFT); 98 } 99 100 #ifdef XEN3 101 static inline void 102 MULTI_update_va_mapping( 103 multicall_entry_t *mcl, vaddr_t va, 104 pt_entry_t new_val, unsigned long flags) 105 { 106 mcl->op = __HYPERVISOR_update_va_mapping; 107 mcl->args[0] = va; 108 #if defined(__x86_64__) 109 mcl->args[1] = new_val; 110 mcl->args[2] = flags; 111 #else 112 mcl->args[1] = (new_val & 0xffffffff); 113 #ifdef PAE 114 mcl->args[2] = (new_val >> 32); 115 #else 116 mcl->args[2] = 0; 117 #endif 118 mcl->args[3] = flags; 119 #endif 120 } 121 122 static inline void 123 MULTI_update_va_mapping_otherdomain( 124 multicall_entry_t *mcl, vaddr_t va, 125 pt_entry_t new_val, unsigned long flags, domid_t domid) 126 { 127 mcl->op = __HYPERVISOR_update_va_mapping_otherdomain; 128 mcl->args[0] = va; 129 #if defined(__x86_64__) 130 mcl->args[1] = new_val; 131 mcl->args[2] = flags; 132 mcl->args[3] = domid; 133 #else 134 mcl->args[1] = (new_val & 0xffffffff); 135 #ifdef PAE 136 mcl->args[2] = (new_val >> 32); 137 #else 138 mcl->args[2] = 0; 139 #endif 140 mcl->args[3] = flags; 141 mcl->args[4] = domid; 142 #endif 143 } 144 #if defined(__x86_64__) 145 #define MULTI_UVMFLAGS_INDEX 2 146 #define MULTI_UVMDOMID_INDEX 3 147 #else 148 #define MULTI_UVMFLAGS_INDEX 3 149 #define MULTI_UVMDOMID_INDEX 4 150 #endif 151 152 #if defined(__x86_64__) 153 void xen_set_user_pgd(paddr_t); 154 #endif 155 156 #endif /* XEN3 */ 157 158 #endif /* _XEN_XENPMAP_H_ */ 159
Indexes created Thu Sep 25 16:09:42 GMT 2025