xenpmap.h revision 1.28
1 /* $NetBSD: xenpmap.h,v 1.28 2011/08/10 09:50:37 cherry 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 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 30 #ifndef _XEN_XENPMAP_H_ 31 #define _XEN_XENPMAP_H_ 32 33 #ifdef _KERNEL_OPT 34 #include "opt_xen.h" 35 #endif 36 37 #define INVALID_P2M_ENTRY (~0UL) 38 39 void xpq_queue_lock(void); 40 void xpq_queue_unlock(void); 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, int); 49 void xpq_queue_unpin_table(paddr_t); 50 int xpq_update_foreign(paddr_t, pt_entry_t, int); 51 void xen_vcpu_mcast_invlpg(vaddr_t, vaddr_t, uint32_t); 52 void xen_vcpu_bcast_invlpg(vaddr_t, vaddr_t); 53 void xen_mcast_tlbflush(uint32_t); 54 void xen_bcast_tlbflush(void); 55 void xen_mcast_invlpg(vaddr_t, uint32_t); 56 void xen_bcast_invlpg(vaddr_t); 57 58 59 #define xpq_queue_pin_l1_table(pa) \ 60 xpq_queue_pin_table(pa, MMUEXT_PIN_L1_TABLE) 61 #define xpq_queue_pin_l2_table(pa) \ 62 xpq_queue_pin_table(pa, MMUEXT_PIN_L2_TABLE) 63 #define xpq_queue_pin_l3_table(pa) \ 64 xpq_queue_pin_table(pa, MMUEXT_PIN_L3_TABLE) 65 #define xpq_queue_pin_l4_table(pa) \ 66 xpq_queue_pin_table(pa, MMUEXT_PIN_L4_TABLE) 67 68 extern unsigned long *xpmap_phys_to_machine_mapping; 69 70 /* 71 * On Xen-2, the start of the day virtual memory starts at KERNTEXTOFF 72 * (0xc0100000). On Xen-3 for domain0 it starts at KERNBASE (0xc0000000). 73 * So the offset between physical and virtual address is different on 74 * Xen-2 and Xen-3 for domain0. 75 * starting with xen-3.0.2, we can add notes so that virtual memory starts 76 * at KERNBASE for domU as well. 77 */ 78 #if defined(DOM0OPS) || !defined(XEN_COMPAT_030001) 79 #define XPMAP_OFFSET 0 80 #else 81 #define XPMAP_OFFSET (KERNTEXTOFF - KERNBASE) 82 #endif 83 84 #define mfn_to_pfn(mfn) (machine_to_phys_mapping[(mfn)]) 85 #define pfn_to_mfn(pfn) (xpmap_phys_to_machine_mapping[(pfn)]) 86 87 static __inline paddr_t 88 xpmap_mtop_masked(paddr_t mpa) 89 { 90 return ( 91 ((paddr_t)machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT) 92 + XPMAP_OFFSET); 93 } 94 95 static __inline paddr_t 96 xpmap_mtop(paddr_t mpa) 97 { 98 return (xpmap_mtop_masked(mpa) | (mpa & ~PG_FRAME)); 99 } 100 101 static __inline paddr_t 102 xpmap_ptom_masked(paddr_t ppa) 103 { 104 return (((paddr_t)xpmap_phys_to_machine_mapping[(ppa - 105 XPMAP_OFFSET) >> PAGE_SHIFT]) << PAGE_SHIFT); 106 } 107 108 static __inline paddr_t 109 xpmap_ptom(paddr_t ppa) 110 { 111 return (xpmap_ptom_masked(ppa) | (ppa & ~PG_FRAME)); 112 } 113 114 static inline void 115 MULTI_update_va_mapping( 116 multicall_entry_t *mcl, vaddr_t va, 117 pt_entry_t new_val, unsigned long flags) 118 { 119 mcl->op = __HYPERVISOR_update_va_mapping; 120 mcl->args[0] = va; 121 #if defined(__x86_64__) 122 mcl->args[1] = new_val; 123 mcl->args[2] = flags; 124 #else 125 mcl->args[1] = (new_val & 0xffffffff); 126 #ifdef PAE 127 mcl->args[2] = (new_val >> 32); 128 #else 129 mcl->args[2] = 0; 130 #endif 131 mcl->args[3] = flags; 132 #endif 133 } 134 135 static inline void 136 MULTI_update_va_mapping_otherdomain( 137 multicall_entry_t *mcl, vaddr_t va, 138 pt_entry_t new_val, unsigned long flags, domid_t domid) 139 { 140 mcl->op = __HYPERVISOR_update_va_mapping_otherdomain; 141 mcl->args[0] = va; 142 #if defined(__x86_64__) 143 mcl->args[1] = new_val; 144 mcl->args[2] = flags; 145 mcl->args[3] = domid; 146 #else 147 mcl->args[1] = (new_val & 0xffffffff); 148 #ifdef PAE 149 mcl->args[2] = (new_val >> 32); 150 #else 151 mcl->args[2] = 0; 152 #endif 153 mcl->args[3] = flags; 154 mcl->args[4] = domid; 155 #endif 156 } 157 #if defined(__x86_64__) 158 #define MULTI_UVMFLAGS_INDEX 2 159 #define MULTI_UVMDOMID_INDEX 3 160 #else 161 #define MULTI_UVMFLAGS_INDEX 3 162 #define MULTI_UVMDOMID_INDEX 4 163 #endif 164 165 #if defined(__x86_64__) 166 void xen_set_user_pgd(paddr_t); 167 #endif 168 169 #endif /* _XEN_XENPMAP_H_ */ 170
Indexes created Fri Sep 26 08:10:20 GMT 2025