xenpmap.h revision 1.23
1 /* $NetBSD: xenpmap.h,v 1.23 2009/07/29 12:02:06 cegger 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(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 ( 75 ((paddr_t)machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT) 76 + XPMAP_OFFSET) | (mpa & ~PG_FRAME); 77 } 78 79 static __inline paddr_t 80 xpmap_mtop_masked(paddr_t mpa) 81 { 82 return ( 83 ((paddr_t)machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT) 84 + XPMAP_OFFSET); 85 } 86 87 static __inline paddr_t 88 xpmap_ptom(paddr_t ppa) 89 { 90 return (((paddr_t)xpmap_phys_to_machine_mapping[(ppa - 91 XPMAP_OFFSET) >> PAGE_SHIFT]) << PAGE_SHIFT) 92 | (ppa & ~PG_FRAME); 93 } 94 95 static __inline paddr_t 96 xpmap_ptom_masked(paddr_t ppa) 97 { 98 return (((paddr_t)xpmap_phys_to_machine_mapping[(ppa - 99 XPMAP_OFFSET) >> PAGE_SHIFT]) << PAGE_SHIFT); 100 } 101 102 static inline void 103 MULTI_update_va_mapping( 104 multicall_entry_t *mcl, vaddr_t va, 105 pt_entry_t new_val, unsigned long flags) 106 { 107 mcl->op = __HYPERVISOR_update_va_mapping; 108 mcl->args[0] = va; 109 #if defined(__x86_64__) 110 mcl->args[1] = new_val; 111 mcl->args[2] = flags; 112 #else 113 mcl->args[1] = (new_val & 0xffffffff); 114 #ifdef PAE 115 mcl->args[2] = (new_val >> 32); 116 #else 117 mcl->args[2] = 0; 118 #endif 119 mcl->args[3] = flags; 120 #endif 121 } 122 123 static inline void 124 MULTI_update_va_mapping_otherdomain( 125 multicall_entry_t *mcl, vaddr_t va, 126 pt_entry_t new_val, unsigned long flags, domid_t domid) 127 { 128 mcl->op = __HYPERVISOR_update_va_mapping_otherdomain; 129 mcl->args[0] = va; 130 #if defined(__x86_64__) 131 mcl->args[1] = new_val; 132 mcl->args[2] = flags; 133 mcl->args[3] = domid; 134 #else 135 mcl->args[1] = (new_val & 0xffffffff); 136 #ifdef PAE 137 mcl->args[2] = (new_val >> 32); 138 #else 139 mcl->args[2] = 0; 140 #endif 141 mcl->args[3] = flags; 142 mcl->args[4] = domid; 143 #endif 144 } 145 #if defined(__x86_64__) 146 #define MULTI_UVMFLAGS_INDEX 2 147 #define MULTI_UVMDOMID_INDEX 3 148 #else 149 #define MULTI_UVMFLAGS_INDEX 3 150 #define MULTI_UVMDOMID_INDEX 4 151 #endif 152 153 #if defined(__x86_64__) 154 void xen_set_user_pgd(paddr_t); 155 #endif 156 157 #endif /* _XEN_XENPMAP_H_ */ 158
Indexes created Sun Sep 28 07:09:56 GMT 2025