xenfunc.c revision 1.2.4.2
1 /* $NetBSD: xenfunc.c,v 1.2.4.2 2007/12/03 19:04:46 ad 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 #include <sys/param.h> 35 36 #include <uvm/uvm_extern.h> 37 38 #include <machine/intr.h> 39 #include <machine/vmparam.h> 40 #include <machine/pmap.h> 41 #include <xen/xen.h> 42 #include <xen/hypervisor.h> 43 //#include <xen/evtchn.h> 44 #include <xen/xenpmap.h> 45 #include <machine/pte.h> 46 47 #ifdef XENDEBUG_LOW 48 #define __PRINTK(x) printk x 49 #else 50 #define __PRINTK(x) 51 #endif 52 53 void xen_set_ldt(vaddr_t, uint32_t); 54 void xen_update_descriptor(union descriptor *, union descriptor *); 55 56 void 57 invlpg(vaddr_t addr) 58 { 59 int s = splvm(); 60 xpq_queue_invlpg(addr); 61 xpq_flush_queue(); 62 splx(s); 63 } 64 65 #ifndef __x86_64__ 66 void 67 lldt(u_short sel) 68 { 69 70 /* __PRINTK(("ldt %x\n", IDXSELN(sel))); */ 71 if (sel == GSEL(GLDT_SEL, SEL_KPL)) 72 xen_set_ldt((vaddr_t)ldt, NLDT); 73 else 74 xen_set_ldt(cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_base, 75 cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_entries); 76 } 77 #endif 78 79 void 80 ltr(u_short sel) 81 { 82 __PRINTK(("XXX ltr not supported\n")); 83 } 84 85 void 86 lcr0(u_int val) 87 { 88 __PRINTK(("XXX lcr0 not supported\n")); 89 } 90 91 u_int 92 rcr0(void) 93 { 94 __PRINTK(("XXX rcr0 not supported\n")); 95 return 0; 96 } 97 98 #ifndef __x86_64__ 99 void 100 lcr3(vaddr_t val) 101 { 102 int s = splvm(); 103 xpq_queue_pt_switch(xpmap_ptom_masked(val)); 104 xpq_flush_queue(); 105 splx(s); 106 } 107 #endif 108 109 void 110 tlbflush(void) 111 { 112 int s = splvm(); 113 xpq_queue_tlb_flush(); 114 xpq_flush_queue(); 115 splx(s); 116 } 117 118 void 119 tlbflushg(void) 120 { 121 tlbflush(); 122 } 123 124 vaddr_t 125 rdr6(void) 126 { 127 u_int val; 128 129 val = HYPERVISOR_get_debugreg(6); 130 return val; 131 } 132 133 void 134 ldr6(vaddr_t val) 135 { 136 137 HYPERVISOR_set_debugreg(6, val); 138 } 139 140 void 141 wbinvd(void) 142 { 143 144 xpq_flush_cache(); 145 } 146 147 vaddr_t 148 rcr2(void) 149 { 150 #ifdef XEN3 151 return HYPERVISOR_shared_info->vcpu_info[0].arch.cr2; /* XXX curcpu */ 152 #else 153 return 0; 154 #endif 155 } 156 /* $NetBSD: xenfunc.c,v 1.2.4.2 2007/12/03 19:04:46 ad Exp $ */ 157 158 /* 159 * 160 * Copyright (c) 2004 Christian Limpach. 161 * All rights reserved. 162 * 163 * Redistribution and use in source and binary forms, with or without 164 * modification, are permitted provided that the following conditions 165 * are met: 166 * 1. Redistributions of source code must retain the above copyright 167 * notice, this list of conditions and the following disclaimer. 168 * 2. Redistributions in binary form must reproduce the above copyright 169 * notice, this list of conditions and the following disclaimer in the 170 * documentation and/or other materials provided with the distribution. 171 * 3. All advertising materials mentioning features or use of this software 172 * must display the following acknowledgement: 173 * This product includes software developed by Christian Limpach. 174 * 4. The name of the author may not be used to endorse or promote products 175 * derived from this software without specific prior written permission. 176 * 177 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 178 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 179 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 180 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 181 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 182 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 183 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 184 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 185 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 186 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 187 */ 188 189 #include <sys/param.h> 190 191 #include <uvm/uvm_extern.h> 192 193 #include <machine/intr.h> 194 #include <machine/vmparam.h> 195 #include <machine/pmap.h> 196 #include <xen/xen.h> 197 #include <xen/hypervisor.h> 198 //#include <xen/evtchn.h> 199 #include <xen/xenpmap.h> 200 #include <machine/pte.h> 201 202 #ifdef XENDEBUG_LOW 203 #define __PRINTK(x) printk x 204 #else 205 #define __PRINTK(x) 206 #endif 207 208 void xen_set_ldt(vaddr_t, uint32_t); 209 void xen_update_descriptor(union descriptor *, union descriptor *); 210 211 void 212 invlpg(vaddr_t addr) 213 { 214 int s = splvm(); 215 xpq_queue_invlpg(addr); 216 xpq_flush_queue(); 217 splx(s); 218 } 219 220 #ifndef __x86_64__ 221 void 222 lldt(u_short sel) 223 { 224 225 /* __PRINTK(("ldt %x\n", IDXSELN(sel))); */ 226 if (sel == GSEL(GLDT_SEL, SEL_KPL)) 227 xen_set_ldt((vaddr_t)ldt, NLDT); 228 else 229 xen_set_ldt(cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_base, 230 cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_entries); 231 } 232 #endif 233 234 void 235 ltr(u_short sel) 236 { 237 __PRINTK(("XXX ltr not supported\n")); 238 } 239 240 void 241 lcr0(u_int val) 242 { 243 __PRINTK(("XXX lcr0 not supported\n")); 244 } 245 246 u_int 247 rcr0(void) 248 { 249 __PRINTK(("XXX rcr0 not supported\n")); 250 return 0; 251 } 252 253 #ifndef __x86_64__ 254 void 255 lcr3(vaddr_t val) 256 { 257 int s = splvm(); 258 xpq_queue_pt_switch(xpmap_ptom_masked(val)); 259 xpq_flush_queue(); 260 splx(s); 261 } 262 #endif 263 264 void 265 tlbflush(void) 266 { 267 int s = splvm(); 268 xpq_queue_tlb_flush(); 269 xpq_flush_queue(); 270 splx(s); 271 } 272 273 void 274 tlbflushg(void) 275 { 276 tlbflush(); 277 } 278 279 vaddr_t 280 rdr6(void) 281 { 282 u_int val; 283 284 val = HYPERVISOR_get_debugreg(6); 285 return val; 286 } 287 288 void 289 ldr6(vaddr_t val) 290 { 291 292 HYPERVISOR_set_debugreg(6, val); 293 } 294 295 void 296 wbinvd(void) 297 { 298 299 xpq_flush_cache(); 300 } 301 302 vaddr_t 303 rcr2(void) 304 { 305 #ifdef XEN3 306 return HYPERVISOR_shared_info->vcpu_info[0].arch.cr2; /* XXX curcpu */ 307 #else 308 return 0; 309 #endif 310 } 311
Indexes created Thu Oct 02 10:09:58 GMT 2025