xenpmap.h revision 1.3
1 /* $NetBSD: xenpmap.h,v 1.3 2004/04/26 22:05:05 cl 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 void xpq_queue_invlpg(vaddr_t); 39 void xpq_queue_pde_update(pd_entry_t *, pd_entry_t); 40 void xpq_queue_pte_update(pt_entry_t *, pt_entry_t); 41 void xpq_queue_unchecked_pte_update(pt_entry_t *, pt_entry_t); 42 void xpq_queue_pt_switch(paddr_t); 43 void xpq_flush_queue(void); 44 void xpq_queue_set_ldt(vaddr_t, uint32_t); 45 void xpq_queue_tlb_flush(void); 46 void xpq_queue_pin_table(paddr_t, int); 47 void xpq_queue_unpin_table(paddr_t); 48 49 extern paddr_t *xpmap_phys_to_machine_mapping; 50 51 #define XPQ_PIN_L1_TABLE 1 52 #define XPQ_PIN_L2_TABLE 2 53 54 #ifndef XEN 55 #define PDE_GET(_pdp) \ 56 *(_pdp) 57 #define PDE_SET(_pdp,_npde) \ 58 *(_pdp) = (_npde) 59 #define PDE_CLEAR(_pdp) \ 60 *(_pdp) = 0 61 #define PTE_SET(_ptp,_npte) \ 62 *(_ptp) = (_npte) 63 #define PTE_CLEAR(_ptp) \ 64 *(_ptp) = 0 65 #define PTE_ATOMIC_SET(_ptp,_npte,_opte) \ 66 (_opte) = x86_atomic_testset_ul((_ptp), (_npte)) 67 #define PTE_ATOMIC_CLEAR(_ptp,_opte) \ 68 (_opte) = x86_atomic_testset_ul((_ptp), 0) 69 #define PDE_CLEARBITS(_pdp,_bits) \ 70 *(_pdp) &= ~(_bits) 71 #define PTE_ATOMIC_CLEARBITS(_ptp,_bits) \ 72 x86_atomic_clearbits_l((_ptp), (_bits)) 73 #define PTE_SETBITS(_ptp,_bits) \ 74 *(_ptp) |= (_bits) 75 #define PTE_ATOMIC_SETBITS(_ptp,_bits) \ 76 x86_atomic_setbits_l((_ptp), (_bits)) 77 #else 78 paddr_t *xpmap_phys_to_machine_mapping; 79 80 #define PDE_GET(_pdp) \ 81 (pmap_valid_entry(*(_pdp)) ? xpmap_mtop(*(_pdp)) : *(_pdp)) 82 #define PDE_SET(_pdp,_npde) do { \ 83 xpq_queue_pde_update((_pdp), xpmap_ptom((_npde))); \ 84 xpq_flush_queue(); \ 85 } while (/*CONSTCOND*/0) 86 #define PDE_CLEAR(_pdp) do { \ 87 xpq_queue_pde_update((_pdp), 0); \ 88 xpq_flush_queue(); \ 89 } while (/*CONSTCOND*/0) 90 #define PTE_GET(_ptp) \ 91 (pmap_valid_entry(*(_ptp)) ? xpmap_mtop(*(_ptp)) : *(_ptp)) 92 #define PTE_GET_MA(_ptp) \ 93 *(_ptp) 94 #define PTE_SET(_ptp,_npte) do { \ 95 xpq_queue_pte_update((_ptp), xpmap_ptom((_npte))); \ 96 xpq_flush_queue(); \ 97 } while (/*CONSTCOND*/0) 98 #define PTE_SET_MA(_ptp,_npte) do { \ 99 xpq_queue_pte_update((_ptp), (_npte)); \ 100 xpq_flush_queue(); \ 101 } while (/*CONSTCOND*/0) 102 #define PTE_SET_MA_UNCHECKED(_ptp,_npte) do { \ 103 xpq_queue_unchecked_pte_update((_ptp), (_npte)); \ 104 xpq_flush_queue(); \ 105 } while (/*CONSTCOND*/0) 106 #define PTE_CLEAR(_ptp) do { \ 107 xpq_queue_pte_update((_ptp), 0); \ 108 xpq_flush_queue(); \ 109 } while (/*CONSTCOND*/0) 110 #define PTE_ATOMIC_SET(_ptp,_npte,_opte) do { \ 111 (_opte) = PTE_GET(_ptp); \ 112 xpq_queue_pte_update((_ptp), xpmap_ptom((_npte))); \ 113 xpq_flush_queue(); \ 114 } while (/*CONSTCOND*/0) 115 #define PTE_ATOMIC_SET_MA(_ptp,_npte,_opte) do { \ 116 (_opte) = *(_ptp); \ 117 xpq_queue_pte_update((_ptp), (_npte)); \ 118 xpq_flush_queue(); \ 119 } while (/*CONSTCOND*/0) 120 #define PTE_ATOMIC_CLEAR(_ptp,_opte) do { \ 121 (_opte) = PTE_GET(_ptp); \ 122 xpq_queue_pte_update((_ptp), 0); \ 123 xpq_flush_queue(); \ 124 } while (/*CONSTCOND*/0) 125 #define PTE_ATOMIC_CLEAR_MA(_ptp,_opte) do { \ 126 (_opte) = *(_ptp); \ 127 xpq_queue_pte_update((_ptp), 0); \ 128 xpq_flush_queue(); \ 129 } while (/*CONSTCOND*/0) 130 #define PDE_CLEARBITS(_pdp,_bits) do { \ 131 xpq_queue_pte_update((_pdp), *(_pdp) & ~((_bits) & ~PG_FRAME)); \ 132 xpq_flush_queue(); \ 133 } while (/*CONSTCOND*/0) 134 #define PTE_CLEARBITS(_ptp,_bits) do { \ 135 xpq_queue_pte_update((_ptp), *(_ptp) & ~((_bits) & ~PG_FRAME)); \ 136 xpq_flush_queue(); \ 137 } while (/*CONSTCOND*/0) 138 #define PDE_ATOMIC_CLEARBITS(_pdp,_bits) do { \ 139 xpq_queue_pde_update((_pdp), *(_pdp) & ~((_bits) & ~PG_FRAME)); \ 140 xpq_flush_queue(); \ 141 } while (/*CONSTCOND*/0) 142 #define PTE_ATOMIC_CLEARBITS(_ptp,_bits) do { \ 143 xpq_queue_pte_update((_ptp), *(_ptp) & ~((_bits) & ~PG_FRAME)); \ 144 xpq_flush_queue(); \ 145 } while (/*CONSTCOND*/0) 146 #define PTE_SETBITS(_ptp,_bits) do { \ 147 xpq_queue_pte_update((_ptp), *(_ptp) | ((_bits) & ~PG_FRAME)); \ 148 xpq_flush_queue(); \ 149 } while (/*CONSTCOND*/0) 150 #define PDE_ATOMIC_SETBITS(_pdp,_bits) do { \ 151 xpq_queue_pde_update((_pdp), *(_pdp) | ((_bits) & ~PG_FRAME)); \ 152 xpq_flush_queue(); \ 153 } while (/*CONSTCOND*/0) 154 #define PTE_ATOMIC_SETBITS(_ptp,_bits) do { \ 155 xpq_queue_pde_update((_ptp), *(_ptp) | ((_bits) & ~PG_FRAME)); \ 156 xpq_flush_queue(); \ 157 } while (/*CONSTCOND*/0) 158 #define PDE_COPY(_dpdp,_spdp) do { \ 159 xpq_queue_pde_update((_dpdp), *(_spdp)); \ 160 xpq_flush_queue(); \ 161 } while (/*CONSTCOND*/0) 162 #define PTE_UPDATES_FLUSH() do { \ 163 xpq_flush_queue(); \ 164 } while (/*CONSTCOND*/0) 165 166 #endif 167 168 static __inline paddr_t 169 xpmap_mtop(paddr_t mpa) 170 { 171 return ((machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT) + 172 (KERNTEXTOFF - KERNBASE_LOCORE)) | (mpa & ~PG_FRAME); 173 } 174 175 static __inline paddr_t 176 xpmap_ptom(paddr_t ppa) 177 { 178 return (xpmap_phys_to_machine_mapping[(ppa - 179 (KERNTEXTOFF - KERNBASE_LOCORE)) >> PAGE_SHIFT] << PAGE_SHIFT) 180 | (ppa & ~PG_FRAME); 181 } 182 183 static __inline paddr_t 184 xpmap_ptom_masked(paddr_t ppa) 185 { 186 return (xpmap_phys_to_machine_mapping[(ppa - 187 (KERNTEXTOFF - KERNBASE_LOCORE)) >> PAGE_SHIFT] << PAGE_SHIFT); 188 } 189 190 #endif /* _XEN_XENPMAP_H_ */ 191
Indexes created Wed Sep 24 02:09:48 GMT 2025