misc.hh revision 4868
112855Sgabeblack@google.com/* 212855Sgabeblack@google.com * Copyright (c) 2007 The Hewlett-Packard Development Company 312855Sgabeblack@google.com * All rights reserved. 412855Sgabeblack@google.com * 512855Sgabeblack@google.com * Redistribution and use of this software in source and binary forms, 612855Sgabeblack@google.com * with or without modification, are permitted provided that the 712855Sgabeblack@google.com * following conditions are met: 812855Sgabeblack@google.com * 912855Sgabeblack@google.com * The software must be used only for Non-Commercial Use which means any 1012855Sgabeblack@google.com * use which is NOT directed to receiving any direct monetary 1112855Sgabeblack@google.com * compensation for, or commercial advantage from such use. Illustrative 1212855Sgabeblack@google.com * examples of non-commercial use are academic research, personal study, 1312855Sgabeblack@google.com * teaching, education and corporate research & development. 1412855Sgabeblack@google.com * Illustrative examples of commercial use are distributing products for 1512855Sgabeblack@google.com * commercial advantage and providing services using the software for 1612855Sgabeblack@google.com * commercial advantage. 1712855Sgabeblack@google.com * 1812855Sgabeblack@google.com * If you wish to use this software or functionality therein that may be 1912855Sgabeblack@google.com * covered by patents for commercial use, please contact: 2012855Sgabeblack@google.com * Director of Intellectual Property Licensing 2112855Sgabeblack@google.com * Office of Strategy and Technology 2212855Sgabeblack@google.com * Hewlett-Packard Company 2312855Sgabeblack@google.com * 1501 Page Mill Road 2412855Sgabeblack@google.com * Palo Alto, California 94304 2512855Sgabeblack@google.com * 2612855Sgabeblack@google.com * Redistributions of source code must retain the above copyright notice, 2712855Sgabeblack@google.com * this list of conditions and the following disclaimer. Redistributions 2812855Sgabeblack@google.com * in binary form must reproduce the above copyright notice, this list of 2912855Sgabeblack@google.com * conditions and the following disclaimer in the documentation and/or 3012855Sgabeblack@google.com * other materials provided with the distribution. Neither the name of 3112855Sgabeblack@google.com * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 3212855Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 3312855Sgabeblack@google.com * this software without specific prior written permission. No right of 3412855Sgabeblack@google.com * sublicense is granted herewith. Derivatives of the software and 3512855Sgabeblack@google.com * output created using the software may be prepared, but only for 3612855Sgabeblack@google.com * Non-Commercial Uses. Derivatives of the software may be shared with 3712855Sgabeblack@google.com * others provided: (i) the others agree to abide by the list of 3812855Sgabeblack@google.com * conditions herein which includes the Non-Commercial Use restrictions; 3912855Sgabeblack@google.com * and (ii) such Derivatives of the software include the above copyright 4012855Sgabeblack@google.com * notice to acknowledge the contribution from this software where 4112855Sgabeblack@google.com * applicable, this list of conditions and the disclaimer below. 4212855Sgabeblack@google.com * 4312855Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 4412855Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 4512855Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 4612855Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 4712855Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 4812855Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 4912855Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 5012855Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 5112855Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 5212855Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 5312855Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 5412855Sgabeblack@google.com * 5512855Sgabeblack@google.com * Authors: Gabe Black 5612855Sgabeblack@google.com */ 5712855Sgabeblack@google.com 5812855Sgabeblack@google.com#ifndef __ARCH_X86_MISCREGS_HH__ 5912855Sgabeblack@google.com#define __ARCH_X86_MISCREGS_HH__ 6012855Sgabeblack@google.com 6112855Sgabeblack@google.com#include "base/bitunion.hh" 6212855Sgabeblack@google.com 6312855Sgabeblack@google.comnamespace X86ISA 6412855Sgabeblack@google.com{ 6512855Sgabeblack@google.com enum CondFlagBit { 6612855Sgabeblack@google.com CFBit = 1 << 0, 6712855Sgabeblack@google.com PFBit = 1 << 2, 6812855Sgabeblack@google.com ECFBit = 1 << 3, 6912855Sgabeblack@google.com AFBit = 1 << 4, 7012855Sgabeblack@google.com EZFBit = 1 << 5, 7112855Sgabeblack@google.com ZFBit = 1 << 6, 7212855Sgabeblack@google.com SFBit = 1 << 7, 7312855Sgabeblack@google.com DFBit = 1 << 10, 7412855Sgabeblack@google.com OFBit = 1 << 11 7512855Sgabeblack@google.com }; 7612855Sgabeblack@google.com 7712855Sgabeblack@google.com enum MiscRegIndex 7812855Sgabeblack@google.com { 7912855Sgabeblack@google.com // Control registers 8012855Sgabeblack@google.com // Most of these are invalid. 8112855Sgabeblack@google.com MISCREG_CR_BASE, 8212855Sgabeblack@google.com MISCREG_CR0 = MISCREG_CR_BASE, 8312855Sgabeblack@google.com MISCREG_CR1, 8412855Sgabeblack@google.com MISCREG_CR2, 8512855Sgabeblack@google.com MISCREG_CR3, 8612855Sgabeblack@google.com MISCREG_CR4, 8712855Sgabeblack@google.com MISCREG_CR5, 8812855Sgabeblack@google.com MISCREG_CR6, 8912855Sgabeblack@google.com MISCREG_CR7, 9012855Sgabeblack@google.com MISCREG_CR8, 9112855Sgabeblack@google.com MISCREG_CR9, 9212855Sgabeblack@google.com MISCREG_CR10, 9312855Sgabeblack@google.com MISCREG_CR11, 9412855Sgabeblack@google.com MISCREG_CR12, 9512855Sgabeblack@google.com MISCREG_CR13, 9612855Sgabeblack@google.com MISCREG_CR14, 9712855Sgabeblack@google.com MISCREG_CR15, 9812855Sgabeblack@google.com 9912855Sgabeblack@google.com // Debug registers 10012855Sgabeblack@google.com MISCREG_DR_BASE, 10112855Sgabeblack@google.com MISCREG_DR0 = MISCREG_DR_BASE, 10212855Sgabeblack@google.com MISCREG_DR1, 10312855Sgabeblack@google.com MISCREG_DR2, 10412855Sgabeblack@google.com MISCREG_DR3, 10512855Sgabeblack@google.com MISCREG_DR4, 10612855Sgabeblack@google.com MISCREG_DR5, 10712855Sgabeblack@google.com MISCREG_DR6, 10812855Sgabeblack@google.com MISCREG_DR7, 10912855Sgabeblack@google.com 11012855Sgabeblack@google.com // Flags register 11112855Sgabeblack@google.com MISCREG_RFLAGS, 112 113 // Segment selectors 114 MISCREG_SEG_SEL_BASE, 115 MISCREG_ES = MISCREG_SEG_SEL_BASE, 116 MISCREG_CS, 117 MISCREG_SS, 118 MISCREG_DS, 119 MISCREG_FS, 120 MISCREG_GS, 121 122 // Hidden segment base field 123 MISCREG_SEG_BASE_BASE, 124 MISCREG_ES_BASE = MISCREG_SEG_BASE_BASE, 125 MISCREG_CS_BASE, 126 MISCREG_SS_BASE, 127 MISCREG_DS_BASE, 128 MISCREG_FS_BASE, 129 MISCREG_GS_BASE, 130 131 // Hidden segment limit field 132 MISCREG_SEG_LIMIT_BASE, 133 MISCREG_ES_LIMIT = MISCREG_SEG_LIMIT_BASE, 134 MISCREG_CS_LIMIT, 135 MISCREG_SS_LIMIT, 136 MISCREG_DS_LIMIT, 137 MISCREG_FS_LIMIT, 138 MISCREG_GS_LIMIT, 139 140 // Hidden segment limit attributes 141 MISCREG_SEG_ATTR_BASE, 142 MISCREG_ES_ATTR = MISCREG_SEG_ATTR_BASE, 143 MISCREG_CS_ATTR, 144 MISCREG_SS_ATTR, 145 MISCREG_DS_ATTR, 146 MISCREG_FS_ATTR, 147 MISCREG_GS_ATTR, 148 149 // System segment selectors 150 MISCREG_SYSSEG_SEL_BASE, 151 MISCREG_LDTR = MISCREG_SYSSEG_SEL_BASE, 152 MISCREG_TR, 153 154 // Hidden system segment base field 155 MISCREG_SYSSEG_BASE_BASE, 156 MISCREG_LDTR_BASE = MISCREG_SYSSEG_BASE_BASE, 157 MISCREG_TR_BASE, 158 MISCREG_GDTR_BASE, 159 MISCREG_IDTR_BASE, 160 161 // Hidden system segment limit field 162 MISCREG_SYSSEG_LIMIT_BASE, 163 MISCREG_LDTR_LIMIT = MISCREG_SYSSEG_LIMIT_BASE, 164 MISCREG_TR_LIMIT, 165 MISCREG_GDTR_LIMIT, 166 MISCREG_IDTR_LIMIT, 167 168 // Hidden system segment attribute field 169 MISCREG_SYSSEG_ATTR_BASE, 170 MISCREG_LDTR_ATTR = MISCREG_SYSSEG_ATTR_BASE, 171 MISCREG_TR_ATTR, 172 173 //XXX Add "Model-Specific Registers" 174 175 NUM_MISCREGS 176 }; 177 178 /** 179 * A type to describe the condition code bits of the RFLAGS register, 180 * plus two flags, EZF and ECF, which are only visible to microcode. 181 */ 182 BitUnion64(CCFlagBits) 183 Bitfield<11> OF; 184 Bitfield<7> SF; 185 Bitfield<6> ZF; 186 Bitfield<5> EZF; 187 Bitfield<4> AF; 188 Bitfield<3> ECF; 189 Bitfield<2> PF; 190 Bitfield<0> CF; 191 EndBitUnion(CCFlagBits) 192 193 /** 194 * RFLAGS 195 */ 196 BitUnion64(RFLAGS) 197 Bitfield<21> ID; // ID Flag 198 Bitfield<20> VIP; // Virtual Interrupt Pending 199 Bitfield<19> VIF; // Virtual Interrupt Flag 200 Bitfield<18> AC; // Alignment Check 201 Bitfield<17> VM; // Virtual-8086 Mode 202 Bitfield<16> RF; // Resume Flag 203 Bitfield<14> NT; // Nested Task 204 Bitfield<13, 12> IOPL; // I/O Privilege Level 205 Bitfield<11> OF; // Overflow Flag 206 Bitfield<10> DF; // Direction Flag 207 Bitfield<9> IF; // Interrupt Flag 208 Bitfield<8> TF; // Trap Flag 209 Bitfield<7> SF; // Sign Flag 210 Bitfield<6> ZF; // Zero Flag 211 Bitfield<4> AF; // Auxiliary Flag 212 Bitfield<2> PF; // Parity Flag 213 Bitfield<0> CF; // Carry Flag 214 EndBitUnion(RFLAGS) 215 216 /** 217 * Control registers 218 */ 219 BitUnion64(CR0) 220 Bitfield<31> PG; // Paging 221 Bitfield<30> CD; // Cache Disable 222 Bitfield<29> NW; // Not Writethrough 223 Bitfield<18> AM; // Alignment Mask 224 Bitfield<16> WP; // Write Protect 225 Bitfield<5> NE; // Numeric Error 226 Bitfield<4> ET; // Extension Type 227 Bitfield<3> TS; // Task Switched 228 Bitfield<2> EM; // Emulation 229 Bitfield<1> MP; // Monitor Coprocessor 230 Bitfield<0> PE; // Protection Enabled 231 EndBitUnion(CR0) 232 233 // Page Fault Virtual Address 234 BitUnion64(CR2) 235 Bitfield<31, 0> legacy; 236 EndBitUnion(CR2) 237 238 BitUnion64(CR3) 239 Bitfield<51, 12> longPDTB; // Long Mode Page-Directory-Table 240 // Base Address 241 Bitfield<31, 12> PDTB; // Non-PAE Addressing Page-Directory-Table 242 // Base Address 243 Bitfield<31, 5> PAEPDTB; // PAE Addressing Page-Directory-Table 244 // Base Address 245 Bitfield<4> PCD; // Page-Level Cache Disable 246 Bitfield<3> PWT; // Page-Level Writethrough 247 EndBitUnion(CR3) 248 249 BitUnion64(CR4) 250 Bitfield<10> OSXMMEXCPT; // Operating System Unmasked 251 // Exception Support 252 Bitfield<9> OSFXSR; // Operating System FXSave/FSRSTOR Support 253 Bitfield<8> PCE; // Performance-Monitoring Counter Enable 254 Bitfield<7> PGE; // Page-Global Enable 255 Bitfield<6> MCE; // Machine Check Enable 256 Bitfield<5> PAE; // Physical-Address Extension 257 Bitfield<4> PSE; // Page Size Extensions 258 Bitfield<3> DE; // Debugging Extensions 259 Bitfield<2> TSD; // Time Stamp Disable 260 Bitfield<1> PVI; // Protected-Mode Virtual Interrupts 261 Bitfield<0> VME; // Virtual-8086 Mode Extensions 262 EndBitUnion(CR4) 263 264 BitUnion64(CR8) 265 Bitfield<3, 0> TPR; // Task Priority Register 266 EndBitUnion(CR4) 267 268 /** 269 * Segment Selector 270 */ 271 BitUnion64(SegSelector) 272 Bitfield<15, 3> SI; // Selector Index 273 Bitfield<2> TI; // Table Indicator 274 Bitfield<1, 0> RPL; // Requestor Privilege Level 275 EndBitUnion(SegSelector) 276 277 /** 278 * Segment Descriptors 279 */ 280 281 BitUnion64(SegDescriptor) 282 Bitfield<63, 56> baseHigh; 283 Bitfield<39, 16> baseLow; 284 Bitfield<55> G; // Granularity 285 Bitfield<54> D; // Default Operand Size 286 Bitfield<54> B; // Default Operand Size 287 Bitfield<53> L; // Long Attribute Bit 288 Bitfield<52> AVL; // Available To Software 289 Bitfield<51, 48> limitHigh; 290 Bitfield<15, 0> limitLow; 291 Bitfield<47> P; // Present 292 Bitfield<46, 45> DPL; // Descriptor Privilege-Level 293 Bitfield<44> S; // System 294 SubBitUnion(type, 43, 40) 295 // Specifies whether this descriptor is for code or data. 296 Bitfield<43> codeOrData; 297 298 // These bit fields are for code segments 299 Bitfield<42> C; // Conforming 300 Bitfield<41> R; // Readable 301 302 // These bit fields are for data segments 303 Bitfield<42> E; // Expand-Down 304 Bitfield<41> W; // Writable 305 306 // This is used for both code and data segments. 307 Bitfield<40> A; // Accessed 308 EndSubBitUnion(type) 309 EndBitUnion(SegDescriptor) 310 311 BitUnion64(GateDescriptor) 312 Bitfield<63, 48> offsetHigh; // Target Code-Segment Offset 313 Bitfield<15, 0> offsetLow; // Target Code-Segment Offset 314 Bitfield<31, 16> selector; // Target Code-Segment Selector 315 Bitfield<47> P; // Present 316 Bitfield<46, 45> DPL; // Descriptor Privilege-Level 317 Bitfield<43, 40> type; 318 Bitfield<36, 32> count; // Parameter Count 319 EndBitUnion(GateDescriptor) 320 321 /** 322 * Descriptor-Table Registers 323 */ 324 BitUnion64(GDTR) 325 EndBitUnion(GDTR) 326 327 BitUnion64(IDTR) 328 EndBitUnion(IDTR) 329 330 BitUnion64(LDTR) 331 EndBitUnion(LDTR) 332 333 /** 334 * Task Register 335 */ 336 BitUnion64(TR) 337 EndBitUnion(TR) 338}; 339 340#endif // __ARCH_X86_INTREGS_HH__ 341