xenpmap.h revision 1.7
1 /* $NetBSD: xenpmap.h,v 1.7 2005/05/31 12:36:56 yamt 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 38 #define INVALID_P2M_ENTRY (~0UL) 39 40 void xpq_queue_invlpg(vaddr_t); 41 void xpq_queue_pde_update(pd_entry_t *, pd_entry_t); 42 void xpq_queue_pte_update(pt_entry_t *, pt_entry_t); 43 void xpq_queue_unchecked_pte_update(pt_entry_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(pt_entry_t *, pt_entry_t, int); 51 52 extern paddr_t *xpmap_phys_to_machine_mapping; 53 54 #define XPQ_PIN_L1_TABLE 1 55 #define XPQ_PIN_L2_TABLE 2 56 57 #ifndef XEN 58 #define PDE_GET(_pdp) \ 59 *(_pdp) 60 #define PDE_SET(_pdp,_mapdp,_npde) \ 61 *(_mapdp) = (_npde) 62 #define PDE_CLEAR(_pdp,_mapdp) \ 63 *(_mapdp) = 0 64 #define PTE_SET(_ptp,_maptp,_npte) \ 65 *(_maptp) = (_npte) 66 #define PTE_CLEAR(_ptp,_maptp) \ 67 *(_maptp) = 0 68 #define PTE_ATOMIC_SET(_ptp,_maptp,_npte,_opte) \ 69 (_opte) = x86_atomic_testset_ul((_maptp), (_npte)) 70 #define PTE_ATOMIC_CLEAR(_ptp,_maptp,_opte) \ 71 (_opte) = x86_atomic_testset_ul((_maptp), 0) 72 #define PDE_CLEARBITS(_pdp,_mapdp,_bits) \ 73 *(_mapdp) &= ~(_bits) 74 #define PTE_ATOMIC_CLEARBITS(_ptp,_maptp,_bits) \ 75 x86_atomic_clearbits_l((_maptp), (_bits)) 76 #define PTE_SETBITS(_ptp,_maptp,_bits) \ 77 *(_maptp) |= (_bits) 78 #define PTE_ATOMIC_SETBITS(_ptp,_maptp,_bits) \ 79 x86_atomic_setbits_l((_maptp), (_bits)) 80 #else 81 paddr_t *xpmap_phys_to_machine_mapping; 82 83 #define PDE_GET(_pdp) \ 84 (pmap_valid_entry(*(_pdp)) ? xpmap_mtop(*(_pdp)) : *(_pdp)) 85 #define PDE_SET(_pdp,_mapdp,_npde) do { \ 86 int _s = splvm(); \ 87 xpq_queue_pde_update((_mapdp), xpmap_ptom((_npde))); \ 88 xpq_flush_queue(); \ 89 splx(_s); \ 90 } while (/*CONSTCOND*/0) 91 #define PDE_CLEAR(_pdp,_mapdp) do { \ 92 int _s = splvm(); \ 93 xpq_queue_pde_update((_mapdp), 0); \ 94 xpq_flush_queue(); \ 95 splx(_s); \ 96 } while (/*CONSTCOND*/0) 97 #define PTE_GET(_ptp) \ 98 (pmap_valid_entry(*(_ptp)) ? xpmap_mtop(*(_ptp)) : *(_ptp)) 99 #define PTE_GET_MA(_ptp) \ 100 *(_ptp) 101 #define PTE_SET(_ptp,_maptp,_npte) do { \ 102 int _s = splvm(); \ 103 xpq_queue_pte_update((_maptp), xpmap_ptom((_npte))); \ 104 xpq_flush_queue(); \ 105 splx(_s); \ 106 } while (/*CONSTCOND*/0) 107 #define PTE_SET_MA(_ptp,_maptp,_npte) do { \ 108 int _s = splvm(); \ 109 xpq_queue_pte_update((_maptp), (_npte)); \ 110 xpq_flush_queue(); \ 111 splx(_s); \ 112 } while (/*CONSTCOND*/0) 113 #define PTE_SET_MA_UNCHECKED(_ptp,_maptp,_npte) do { \ 114 _s = splvm(); \ 115 xpq_queue_unchecked_pte_update((_maptp), (_npte)); \ 116 xpq_flush_queue(); \ 117 splx(_s); \ 118 } while (/*CONSTCOND*/0) 119 #define PTE_CLEAR(_ptp,_maptp) do { \ 120 int _s = splvm(); \ 121 xpq_queue_pte_update((_maptp), 0); \ 122 xpq_flush_queue(); \ 123 splx(_s); \ 124 } while (/*CONSTCOND*/0) 125 #define PTE_ATOMIC_SET(_ptp,_maptp,_npte,_opte) do { \ 126 int _s; \ 127 (_opte) = PTE_GET(_ptp); \ 128 _s = splvm(); \ 129 xpq_queue_pte_update((_maptp), xpmap_ptom((_npte))); \ 130 xpq_flush_queue(); \ 131 splx(_s); \ 132 } while (/*CONSTCOND*/0) 133 #define PTE_ATOMIC_SET_MA(_ptp,_maptp,_npte,_opte) do { \ 134 int _s; \ 135 (_opte) = *(_ptp); \ 136 _s = splvm(); \ 137 xpq_queue_pte_update((_maptp), (_npte)); \ 138 xpq_flush_queue(); \ 139 splx(_s); \ 140 } while (/*CONSTCOND*/0) 141 #define PTE_ATOMIC_CLEAR(_ptp,_maptp,_opte) do { \ 142 int _s; \ 143 (_opte) = PTE_GET(_ptp); \ 144 _s = splvm(); \ 145 xpq_queue_pte_update((_maptp), 0); \ 146 xpq_flush_queue(); \ 147 splx(_s); \ 148 } while (/*CONSTCOND*/0) 149 #define PTE_ATOMIC_CLEAR_MA(_ptp,_maptp,_opte) do { \ 150 int _s; \ 151 (_opte) = *(_ptp); \ 152 _s = splvm(); \ 153 xpq_queue_pte_update((_maptp), 0); \ 154 xpq_flush_queue(); \ 155 splx(_s); \ 156 } while (/*CONSTCOND*/0) 157 #define PDE_CLEARBITS(_pdp,_mapdp,_bits) do { \ 158 int _s = splvm(); \ 159 xpq_queue_pte_update((_mapdp), *(_pdp) & ~((_bits) & ~PG_FRAME)); \ 160 xpq_flush_queue(); \ 161 splx(_s); \ 162 } while (/*CONSTCOND*/0) 163 #define PTE_CLEARBITS(_ptp,_maptp,_bits) do { \ 164 int _s = splvm(); \ 165 xpq_queue_pte_update((_maptp), *(_ptp) & ~((_bits) & ~PG_FRAME)); \ 166 xpq_flush_queue(); \ 167 splx(_s); \ 168 } while (/*CONSTCOND*/0) 169 #define PDE_ATOMIC_CLEARBITS(_pdp,_mapdp,_bits) do { \ 170 int _s = splvm(); \ 171 xpq_queue_pde_update((_mapdp), *(_pdp) & ~((_bits) & ~PG_FRAME)); \ 172 xpq_flush_queue(); \ 173 splx(_s); \ 174 } while (/*CONSTCOND*/0) 175 #define PTE_ATOMIC_CLEARBITS(_ptp,_maptp,_bits) do { \ 176 int _s = splvm(); \ 177 xpq_queue_pte_update((_maptp), *(_ptp) & ~((_bits) & ~PG_FRAME)); \ 178 xpq_flush_queue(); \ 179 splx(_s); \ 180 } while (/*CONSTCOND*/0) 181 #define PTE_SETBITS(_ptp,_maptp,_bits) do { \ 182 int _s = splvm(); \ 183 xpq_queue_pte_update((_maptp), *(_ptp) | ((_bits) & ~PG_FRAME)); \ 184 xpq_flush_queue(); \ 185 splx(_s); \ 186 } while (/*CONSTCOND*/0) 187 #define PDE_ATOMIC_SETBITS(_pdp,_mapdp,_bits) do { \ 188 int _s = splvm(); \ 189 xpq_queue_pde_update((_mapdp), *(_pdp) | ((_bits) & ~PG_FRAME)); \ 190 xpq_flush_queue(); \ 191 splx(_s); \ 192 } while (/*CONSTCOND*/0) 193 #define PTE_ATOMIC_SETBITS(_ptp,_maptp,_bits) do { \ 194 int _s = splvm(); \ 195 xpq_queue_pte_update((_maptp), *(_ptp) | ((_bits) & ~PG_FRAME)); \ 196 xpq_flush_queue(); \ 197 splx(_s); \ 198 } while (/*CONSTCOND*/0) 199 #define PDE_COPY(_dpdp,_madpdp,_spdp) do { \ 200 int _s = splvm(); \ 201 xpq_queue_pde_update((_madpdp), *(_spdp)); \ 202 xpq_flush_queue(); \ 203 splx(_s); \ 204 } while (/*CONSTCOND*/0) 205 #define PTE_UPDATES_FLUSH() do { \ 206 int _s = splvm(); \ 207 xpq_flush_queue(); \ 208 splx(_s); \ 209 } while (/*CONSTCOND*/0) 210 211 #endif 212 213 #define XPMAP_OFFSET (KERNTEXTOFF - KERNBASE_LOCORE) 214 static __inline paddr_t 215 xpmap_mtop(paddr_t mpa) 216 { 217 return ((machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT) + 218 XPMAP_OFFSET) | (mpa & ~PG_FRAME); 219 } 220 221 static __inline paddr_t 222 xpmap_ptom(paddr_t ppa) 223 { 224 return (xpmap_phys_to_machine_mapping[(ppa - 225 XPMAP_OFFSET) >> PAGE_SHIFT] << PAGE_SHIFT) 226 | (ppa & ~PG_FRAME); 227 } 228 229 static __inline paddr_t 230 xpmap_ptom_masked(paddr_t ppa) 231 { 232 return (xpmap_phys_to_machine_mapping[(ppa - 233 XPMAP_OFFSET) >> PAGE_SHIFT] << PAGE_SHIFT); 234 } 235 236 #endif /* _XEN_XENPMAP_H_ */ 237
Indexes created Wed Sep 24 14:09:57 GMT 2025