| 1 | ; $Id: CPUMInternal.mac 61348 2016-05-31 17:59:34Z vboxsync $
|
|---|
| 2 | ;; @file
|
|---|
| 3 | ; CPUM - Internal header file (asm).
|
|---|
| 4 | ;
|
|---|
| 5 |
|
|---|
| 6 | ;
|
|---|
| 7 | ; Copyright (C) 2006-2015 Oracle Corporation
|
|---|
| 8 | ;
|
|---|
| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | ; available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | ; General Public License (GPL) as published by the Free Software
|
|---|
| 13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | ;
|
|---|
| 17 |
|
|---|
| 18 | %include "VBox/asmdefs.mac"
|
|---|
| 19 | %include "VBox/vmm/cpum.mac"
|
|---|
| 20 |
|
|---|
| 21 | ;; Check sanity.
|
|---|
| 22 | %ifdef VBOX_WITH_KERNEL_USING_XMM
|
|---|
| 23 | %ifndef IN_RING0
|
|---|
| 24 | %error "What? We've got code assuming VBOX_WITH_KERNEL_USING_XMM is only defined in ring-0!"
|
|---|
| 25 | %endif
|
|---|
| 26 | %endif
|
|---|
| 27 |
|
|---|
| 28 | ;; For numeric expressions
|
|---|
| 29 | %ifdef RT_ARCH_AMD64
|
|---|
| 30 | %define CPUM_IS_AMD64 1
|
|---|
| 31 | %else
|
|---|
| 32 | %define CPUM_IS_AMD64 0
|
|---|
| 33 | %endif
|
|---|
| 34 |
|
|---|
| 35 |
|
|---|
| 36 | ;;
|
|---|
| 37 | ; CPU info
|
|---|
| 38 | struc CPUMINFO
|
|---|
| 39 | .cMsrRanges resd 1 ; uint32_t
|
|---|
| 40 | .fMsrMask resd 1 ; uint32_t
|
|---|
| 41 | .cCpuIdLeaves resd 1 ; uint32_t
|
|---|
| 42 | .iFirstExtCpuIdLeaf resd 1 ; uint32_t
|
|---|
| 43 | .uPadding resd 1 ; uint32_t
|
|---|
| 44 | .enmUnknownCpuIdMethod resd 1 ; CPUMUNKNOWNCPUID
|
|---|
| 45 | .DefCpuId resb CPUMCPUID_size ; CPUMCPUID
|
|---|
| 46 | .uScalableBusFreq resq 1 ; uint64_t
|
|---|
| 47 | .paMsrRangesR0 RTR0PTR_RES 1 ; R0PTRTYPE(PCPUMMSRRANGE)
|
|---|
| 48 | .paCpuIdLeavesR0 RTR0PTR_RES 1 ; R0PTRTYPE(PCPUMCPUIDLEAF)
|
|---|
| 49 | .paMsrRangesR3 RTR3PTR_RES 1 ; R3PTRTYPE(PCPUMMSRRANGE)
|
|---|
| 50 | .paCpuIdLeavesR3 RTR3PTR_RES 1 ; R3PTRTYPE(PCPUMCPUIDLEAF)
|
|---|
| 51 | .paMsrRangesRC RTRCPTR_RES 1 ; RCPTRTYPE(PCPUMMSRRANGE)
|
|---|
| 52 | .paCpuIdLeavesRC RTRCPTR_RES 1 ; RCPTRTYPE(PCPUMCPUIDLEAF)
|
|---|
| 53 | endstruc
|
|---|
| 54 |
|
|---|
| 55 |
|
|---|
| 56 | %define CPUM_USED_FPU_HOST RT_BIT(0)
|
|---|
| 57 | %define CPUM_USED_FPU_GUEST RT_BIT(10)
|
|---|
| 58 | %define CPUM_USED_FPU_SINCE_REM RT_BIT(1)
|
|---|
| 59 | %define CPUM_USED_MANUAL_XMM_RESTORE RT_BIT(2)
|
|---|
| 60 | %define CPUM_USE_SYSENTER RT_BIT(3)
|
|---|
| 61 | %define CPUM_USE_SYSCALL RT_BIT(4)
|
|---|
| 62 | %define CPUM_USE_DEBUG_REGS_HOST RT_BIT(5)
|
|---|
| 63 | %define CPUM_USED_DEBUG_REGS_HOST RT_BIT(6)
|
|---|
| 64 | %define CPUM_USE_DEBUG_REGS_HYPER RT_BIT(7)
|
|---|
| 65 | %define CPUM_USED_DEBUG_REGS_HYPER RT_BIT(8)
|
|---|
| 66 | %define CPUM_USED_DEBUG_REGS_GUEST RT_BIT(9)
|
|---|
| 67 | %define CPUM_SYNC_FPU_STATE RT_BIT(16)
|
|---|
| 68 | %define CPUM_SYNC_DEBUG_REGS_GUEST RT_BIT(17)
|
|---|
| 69 | %define CPUM_SYNC_DEBUG_REGS_HYPER RT_BIT(18)
|
|---|
| 70 | %define CPUM_USE_FFXSR_LEAKY RT_BIT(19)
|
|---|
| 71 | %define CPUM_USE_SUPPORTS_LONGMODE RT_BIT(20)
|
|---|
| 72 |
|
|---|
| 73 | %define CPUM_HANDLER_DS 1
|
|---|
| 74 | %define CPUM_HANDLER_ES 2
|
|---|
| 75 | %define CPUM_HANDLER_FS 3
|
|---|
| 76 | %define CPUM_HANDLER_GS 4
|
|---|
| 77 | %define CPUM_HANDLER_IRET 5
|
|---|
| 78 | %define CPUM_HANDLER_TYPEMASK 0ffh
|
|---|
| 79 | %define CPUM_HANDLER_CTXCORE_IN_EBP RT_BIT(31)
|
|---|
| 80 |
|
|---|
| 81 |
|
|---|
| 82 | struc CPUM
|
|---|
| 83 | ;...
|
|---|
| 84 | .offCPUMCPU0 resd 1
|
|---|
| 85 | .fHostUseFlags resd 1
|
|---|
| 86 |
|
|---|
| 87 | ; CR4 masks
|
|---|
| 88 | .CR4.AndMask resd 1
|
|---|
| 89 | .CR4.OrMask resd 1
|
|---|
| 90 | ; entered rawmode?
|
|---|
| 91 | .u8PortableCpuIdLevel resb 1
|
|---|
| 92 | .fPendingRestore resb 1
|
|---|
| 93 |
|
|---|
| 94 | alignb 8
|
|---|
| 95 | .fXStateGuestMask resq 1
|
|---|
| 96 | .fXStateHostMask resq 1
|
|---|
| 97 |
|
|---|
| 98 | alignb 64
|
|---|
| 99 | .HostFeatures resb 32
|
|---|
| 100 | .GuestFeatures resb 32
|
|---|
| 101 | .GuestInfo resb RTHCPTR_CB*4 + RTRCPTR_CB*2 + 4*12
|
|---|
| 102 |
|
|---|
| 103 | ; Patch manager saved state compatability CPUID leaf arrays
|
|---|
| 104 | .aGuestCpuIdPatmStd resb 16*6
|
|---|
| 105 | .aGuestCpuIdPatmExt resb 16*10
|
|---|
| 106 | .aGuestCpuIdPatmCentaur resb 16*4
|
|---|
| 107 |
|
|---|
| 108 | alignb 8
|
|---|
| 109 | .cMsrWrites resq 1
|
|---|
| 110 | .cMsrWritesToIgnoredBits resq 1
|
|---|
| 111 | .cMsrWritesRaiseGp resq 1
|
|---|
| 112 | .cMsrWritesUnknown resq 1
|
|---|
| 113 | .cMsrReads resq 1
|
|---|
| 114 | .cMsrReadsRaiseGp resq 1
|
|---|
| 115 | .cMsrReadsUnknown resq 1
|
|---|
| 116 | endstruc
|
|---|
| 117 |
|
|---|
| 118 | struc CPUMCPU
|
|---|
| 119 | ;
|
|---|
| 120 | ; Guest context state
|
|---|
| 121 | ; (Identical to the .Hyper chunk below.)
|
|---|
| 122 | ;
|
|---|
| 123 | .Guest resq 0
|
|---|
| 124 | .Guest.eax resq 1
|
|---|
| 125 | .Guest.ecx resq 1
|
|---|
| 126 | .Guest.edx resq 1
|
|---|
| 127 | .Guest.ebx resq 1
|
|---|
| 128 | .Guest.esp resq 1
|
|---|
| 129 | .Guest.ebp resq 1
|
|---|
| 130 | .Guest.esi resq 1
|
|---|
| 131 | .Guest.edi resq 1
|
|---|
| 132 | .Guest.r8 resq 1
|
|---|
| 133 | .Guest.r9 resq 1
|
|---|
| 134 | .Guest.r10 resq 1
|
|---|
| 135 | .Guest.r11 resq 1
|
|---|
| 136 | .Guest.r12 resq 1
|
|---|
| 137 | .Guest.r13 resq 1
|
|---|
| 138 | .Guest.r14 resq 1
|
|---|
| 139 | .Guest.r15 resq 1
|
|---|
| 140 | .Guest.es.Sel resw 1
|
|---|
| 141 | .Guest.es.PaddingSel resw 1
|
|---|
| 142 | .Guest.es.ValidSel resw 1
|
|---|
| 143 | .Guest.es.fFlags resw 1
|
|---|
| 144 | .Guest.es.u64Base resq 1
|
|---|
| 145 | .Guest.es.u32Limit resd 1
|
|---|
| 146 | .Guest.es.Attr resd 1
|
|---|
| 147 | .Guest.cs.Sel resw 1
|
|---|
| 148 | .Guest.cs.PaddingSel resw 1
|
|---|
| 149 | .Guest.cs.ValidSel resw 1
|
|---|
| 150 | .Guest.cs.fFlags resw 1
|
|---|
| 151 | .Guest.cs.u64Base resq 1
|
|---|
| 152 | .Guest.cs.u32Limit resd 1
|
|---|
| 153 | .Guest.cs.Attr resd 1
|
|---|
| 154 | .Guest.ss.Sel resw 1
|
|---|
| 155 | .Guest.ss.PaddingSel resw 1
|
|---|
| 156 | .Guest.ss.ValidSel resw 1
|
|---|
| 157 | .Guest.ss.fFlags resw 1
|
|---|
| 158 | .Guest.ss.u64Base resq 1
|
|---|
| 159 | .Guest.ss.u32Limit resd 1
|
|---|
| 160 | .Guest.ss.Attr resd 1
|
|---|
| 161 | .Guest.ds.Sel resw 1
|
|---|
| 162 | .Guest.ds.PaddingSel resw 1
|
|---|
| 163 | .Guest.ds.ValidSel resw 1
|
|---|
| 164 | .Guest.ds.fFlags resw 1
|
|---|
| 165 | .Guest.ds.u64Base resq 1
|
|---|
| 166 | .Guest.ds.u32Limit resd 1
|
|---|
| 167 | .Guest.ds.Attr resd 1
|
|---|
| 168 | .Guest.fs.Sel resw 1
|
|---|
| 169 | .Guest.fs.PaddingSel resw 1
|
|---|
| 170 | .Guest.fs.ValidSel resw 1
|
|---|
| 171 | .Guest.fs.fFlags resw 1
|
|---|
| 172 | .Guest.fs.u64Base resq 1
|
|---|
| 173 | .Guest.fs.u32Limit resd 1
|
|---|
| 174 | .Guest.fs.Attr resd 1
|
|---|
| 175 | .Guest.gs.Sel resw 1
|
|---|
| 176 | .Guest.gs.PaddingSel resw 1
|
|---|
| 177 | .Guest.gs.ValidSel resw 1
|
|---|
| 178 | .Guest.gs.fFlags resw 1
|
|---|
| 179 | .Guest.gs.u64Base resq 1
|
|---|
| 180 | .Guest.gs.u32Limit resd 1
|
|---|
| 181 | .Guest.gs.Attr resd 1
|
|---|
| 182 | .Guest.eip resq 1
|
|---|
| 183 | .Guest.eflags resq 1
|
|---|
| 184 | .Guest.cr0 resq 1
|
|---|
| 185 | .Guest.cr2 resq 1
|
|---|
| 186 | .Guest.cr3 resq 1
|
|---|
| 187 | .Guest.cr4 resq 1
|
|---|
| 188 | .Guest.dr resq 8
|
|---|
| 189 | .Guest.gdtrPadding resw 3
|
|---|
| 190 | .Guest.gdtr resw 0
|
|---|
| 191 | .Guest.gdtr.cbGdt resw 1
|
|---|
| 192 | .Guest.gdtr.pGdt resq 1
|
|---|
| 193 | .Guest.idtrPadding resw 3
|
|---|
| 194 | .Guest.idtr resw 0
|
|---|
| 195 | .Guest.idtr.cbIdt resw 1
|
|---|
| 196 | .Guest.idtr.pIdt resq 1
|
|---|
| 197 | .Guest.ldtr.Sel resw 1
|
|---|
| 198 | .Guest.ldtr.PaddingSel resw 1
|
|---|
| 199 | .Guest.ldtr.ValidSel resw 1
|
|---|
| 200 | .Guest.ldtr.fFlags resw 1
|
|---|
| 201 | .Guest.ldtr.u64Base resq 1
|
|---|
| 202 | .Guest.ldtr.u32Limit resd 1
|
|---|
| 203 | .Guest.ldtr.Attr resd 1
|
|---|
| 204 | .Guest.tr.Sel resw 1
|
|---|
| 205 | .Guest.tr.PaddingSel resw 1
|
|---|
| 206 | .Guest.tr.ValidSel resw 1
|
|---|
| 207 | .Guest.tr.fFlags resw 1
|
|---|
| 208 | .Guest.tr.u64Base resq 1
|
|---|
| 209 | .Guest.tr.u32Limit resd 1
|
|---|
| 210 | .Guest.tr.Attr resd 1
|
|---|
| 211 | .Guest.SysEnter.cs resb 8
|
|---|
| 212 | .Guest.SysEnter.eip resb 8
|
|---|
| 213 | .Guest.SysEnter.esp resb 8
|
|---|
| 214 | .Guest.msrEFER resb 8
|
|---|
| 215 | .Guest.msrSTAR resb 8
|
|---|
| 216 | .Guest.msrPAT resb 8
|
|---|
| 217 | .Guest.msrLSTAR resb 8
|
|---|
| 218 | .Guest.msrCSTAR resb 8
|
|---|
| 219 | .Guest.msrSFMASK resb 8
|
|---|
| 220 | .Guest.msrKERNELGSBASE resb 8
|
|---|
| 221 | .Guest.msrApicBase resb 8
|
|---|
| 222 | .Guest.aXcr resq 2
|
|---|
| 223 | .Guest.fXStateMask resq 1
|
|---|
| 224 | .Guest.pXStateR0 RTR0PTR_RES 1
|
|---|
| 225 | .Guest.pXStateR3 RTR3PTR_RES 1
|
|---|
| 226 | .Guest.pXStateRC RTRCPTR_RES 1
|
|---|
| 227 | .Guest.aoffXState resw 64
|
|---|
| 228 |
|
|---|
| 229 | alignb 64
|
|---|
| 230 | .GuestMsrs resq 0
|
|---|
| 231 | .GuestMsrs.au64 resq 64
|
|---|
| 232 |
|
|---|
| 233 | ;
|
|---|
| 234 | ; Other stuff.
|
|---|
| 235 | ;
|
|---|
| 236 | .fUseFlags resd 1
|
|---|
| 237 | .fChanged resd 1
|
|---|
| 238 | .offCPUM resd 1
|
|---|
| 239 | .u32RetCode resd 1
|
|---|
| 240 |
|
|---|
| 241 | %ifdef VBOX_WITH_VMMR0_DISABLE_LAPIC_NMI
|
|---|
| 242 | .pvApicBase RTR0PTR_RES 1
|
|---|
| 243 | .fApicDisVectors resd 1
|
|---|
| 244 | .fX2Apic resb 1
|
|---|
| 245 | %else
|
|---|
| 246 | .abPadding3 resb (RTR0PTR_CB + 4 + 1)
|
|---|
| 247 | %endif
|
|---|
| 248 |
|
|---|
| 249 | .fRawEntered resb 1
|
|---|
| 250 | .fRemEntered resb 1
|
|---|
| 251 |
|
|---|
| 252 | .abPadding2 resb (64 - 16 - RTR0PTR_CB - 4 - 1 - 2)
|
|---|
| 253 |
|
|---|
| 254 | ;
|
|---|
| 255 | ; Host context state
|
|---|
| 256 | ;
|
|---|
| 257 | alignb 64
|
|---|
| 258 | .Host resb 0
|
|---|
| 259 | %if HC_ARCH_BITS == 64
|
|---|
| 260 | ;.Host.rax resq 1 - scratch
|
|---|
| 261 | .Host.rbx resq 1
|
|---|
| 262 | ;.Host.rcx resq 1 - scratch
|
|---|
| 263 | ;.Host.rdx resq 1 - scratch
|
|---|
| 264 | .Host.rdi resq 1
|
|---|
| 265 | .Host.rsi resq 1
|
|---|
| 266 | .Host.rbp resq 1
|
|---|
| 267 | .Host.rsp resq 1
|
|---|
| 268 | ;.Host.r8 resq 1 - scratch
|
|---|
| 269 | ;.Host.r9 resq 1 - scratch
|
|---|
| 270 | .Host.r10 resq 1
|
|---|
| 271 | .Host.r11 resq 1
|
|---|
| 272 | .Host.r12 resq 1
|
|---|
| 273 | .Host.r13 resq 1
|
|---|
| 274 | .Host.r14 resq 1
|
|---|
| 275 | .Host.r15 resq 1
|
|---|
| 276 | ;.Host.rip resd 1 - scratch
|
|---|
| 277 | .Host.rflags resq 1
|
|---|
| 278 | %endif
|
|---|
| 279 | %if HC_ARCH_BITS == 32
|
|---|
| 280 | ;.Host.eax resd 1 - scratch
|
|---|
| 281 | .Host.ebx resd 1
|
|---|
| 282 | ;.Host.edx resd 1 - scratch
|
|---|
| 283 | ;.Host.ecx resd 1 - scratch
|
|---|
| 284 | .Host.edi resd 1
|
|---|
| 285 | .Host.esi resd 1
|
|---|
| 286 | .Host.ebp resd 1
|
|---|
| 287 | .Host.eflags resd 1
|
|---|
| 288 | ;.Host.eip resd 1 - scratch
|
|---|
| 289 | ; lss pair!
|
|---|
| 290 | .Host.esp resd 1
|
|---|
| 291 | %endif
|
|---|
| 292 | .Host.ss resw 1
|
|---|
| 293 | .Host.ssPadding resw 1
|
|---|
| 294 | .Host.gs resw 1
|
|---|
| 295 | .Host.gsPadding resw 1
|
|---|
| 296 | .Host.fs resw 1
|
|---|
| 297 | .Host.fsPadding resw 1
|
|---|
| 298 | .Host.es resw 1
|
|---|
| 299 | .Host.esPadding resw 1
|
|---|
| 300 | .Host.ds resw 1
|
|---|
| 301 | .Host.dsPadding resw 1
|
|---|
| 302 | .Host.cs resw 1
|
|---|
| 303 | .Host.csPadding resw 1
|
|---|
| 304 |
|
|---|
| 305 | %if HC_ARCH_BITS == 32
|
|---|
| 306 | .Host.cr0 resd 1
|
|---|
| 307 | ;.Host.cr2 resd 1 - scratch
|
|---|
| 308 | .Host.cr3 resd 1
|
|---|
| 309 | .Host.cr4 resd 1
|
|---|
| 310 | .Host.cr0Fpu resd 1
|
|---|
| 311 |
|
|---|
| 312 | .Host.dr0 resd 1
|
|---|
| 313 | .Host.dr1 resd 1
|
|---|
| 314 | .Host.dr2 resd 1
|
|---|
| 315 | .Host.dr3 resd 1
|
|---|
| 316 | .Host.dr6 resd 1
|
|---|
| 317 | .Host.dr7 resd 1
|
|---|
| 318 |
|
|---|
| 319 | .Host.gdtr resb 6 ; GDT limit + linear address
|
|---|
| 320 | .Host.gdtrPadding resw 1
|
|---|
| 321 | .Host.idtr resb 6 ; IDT limit + linear address
|
|---|
| 322 | .Host.idtrPadding resw 1
|
|---|
| 323 | .Host.ldtr resw 1
|
|---|
| 324 | .Host.ldtrPadding resw 1
|
|---|
| 325 | .Host.tr resw 1
|
|---|
| 326 | .Host.trPadding resw 1
|
|---|
| 327 |
|
|---|
| 328 | alignb 8
|
|---|
| 329 | .Host.SysEnter.cs resq 1
|
|---|
| 330 | .Host.SysEnter.eip resq 1
|
|---|
| 331 | .Host.SysEnter.esp resq 1
|
|---|
| 332 | .Host.efer resq 1
|
|---|
| 333 | .Host.auPadding resb (20)
|
|---|
| 334 |
|
|---|
| 335 | %else ; 64-bit
|
|---|
| 336 |
|
|---|
| 337 | .Host.cr0Fpu:
|
|---|
| 338 | .Host.cr0 resq 1
|
|---|
| 339 | ;.Host.cr2 resq 1 - scratch
|
|---|
| 340 | .Host.cr3 resq 1
|
|---|
| 341 | .Host.cr4 resq 1
|
|---|
| 342 | .Host.cr8 resq 1
|
|---|
| 343 |
|
|---|
| 344 | .Host.dr0 resq 1
|
|---|
| 345 | .Host.dr1 resq 1
|
|---|
| 346 | .Host.dr2 resq 1
|
|---|
| 347 | .Host.dr3 resq 1
|
|---|
| 348 | .Host.dr6 resq 1
|
|---|
| 349 | .Host.dr7 resq 1
|
|---|
| 350 |
|
|---|
| 351 | .Host.gdtr resb 10 ; GDT limit + linear address
|
|---|
| 352 | .Host.gdtrPadding resw 1
|
|---|
| 353 | .Host.idtr resb 10 ; IDT limit + linear address
|
|---|
| 354 | .Host.idtrPadding resw 1
|
|---|
| 355 | .Host.ldtr resw 1
|
|---|
| 356 | .Host.ldtrPadding resw 1
|
|---|
| 357 | .Host.tr resw 1
|
|---|
| 358 | .Host.trPadding resw 1
|
|---|
| 359 |
|
|---|
| 360 | .Host.SysEnter.cs resq 1
|
|---|
| 361 | .Host.SysEnter.eip resq 1
|
|---|
| 362 | .Host.SysEnter.esp resq 1
|
|---|
| 363 | .Host.FSbase resq 1
|
|---|
| 364 | .Host.GSbase resq 1
|
|---|
| 365 | .Host.efer resq 1
|
|---|
| 366 | .Host.auPadding resb 4
|
|---|
| 367 | %endif ; 64-bit
|
|---|
| 368 | .Host.pXStateRC RTRCPTR_RES 1
|
|---|
| 369 | alignb RTR0PTR_CB
|
|---|
| 370 | .Host.pXStateR0 RTR0PTR_RES 1
|
|---|
| 371 | .Host.pXStateR3 RTR3PTR_RES 1
|
|---|
| 372 | alignb 8
|
|---|
| 373 | .Host.xcr0 resq 1
|
|---|
| 374 | .Host.fXStateMask resq 1
|
|---|
| 375 |
|
|---|
| 376 | ;
|
|---|
| 377 | ; Hypervisor Context (same as .Guest above).
|
|---|
| 378 | ;
|
|---|
| 379 | alignb 64
|
|---|
| 380 | .Hyper resq 0
|
|---|
| 381 | .Hyper.eax resq 1
|
|---|
| 382 | .Hyper.ecx resq 1
|
|---|
| 383 | .Hyper.edx resq 1
|
|---|
| 384 | .Hyper.ebx resq 1
|
|---|
| 385 | .Hyper.esp resq 1
|
|---|
| 386 | .Hyper.ebp resq 1
|
|---|
| 387 | .Hyper.esi resq 1
|
|---|
| 388 | .Hyper.edi resq 1
|
|---|
| 389 | .Hyper.r8 resq 1
|
|---|
| 390 | .Hyper.r9 resq 1
|
|---|
| 391 | .Hyper.r10 resq 1
|
|---|
| 392 | .Hyper.r11 resq 1
|
|---|
| 393 | .Hyper.r12 resq 1
|
|---|
| 394 | .Hyper.r13 resq 1
|
|---|
| 395 | .Hyper.r14 resq 1
|
|---|
| 396 | .Hyper.r15 resq 1
|
|---|
| 397 | .Hyper.es.Sel resw 1
|
|---|
| 398 | .Hyper.es.PaddingSel resw 1
|
|---|
| 399 | .Hyper.es.ValidSel resw 1
|
|---|
| 400 | .Hyper.es.fFlags resw 1
|
|---|
| 401 | .Hyper.es.u64Base resq 1
|
|---|
| 402 | .Hyper.es.u32Limit resd 1
|
|---|
| 403 | .Hyper.es.Attr resd 1
|
|---|
| 404 | .Hyper.cs.Sel resw 1
|
|---|
| 405 | .Hyper.cs.PaddingSel resw 1
|
|---|
| 406 | .Hyper.cs.ValidSel resw 1
|
|---|
| 407 | .Hyper.cs.fFlags resw 1
|
|---|
| 408 | .Hyper.cs.u64Base resq 1
|
|---|
| 409 | .Hyper.cs.u32Limit resd 1
|
|---|
| 410 | .Hyper.cs.Attr resd 1
|
|---|
| 411 | .Hyper.ss.Sel resw 1
|
|---|
| 412 | .Hyper.ss.PaddingSel resw 1
|
|---|
| 413 | .Hyper.ss.ValidSel resw 1
|
|---|
| 414 | .Hyper.ss.fFlags resw 1
|
|---|
| 415 | .Hyper.ss.u64Base resq 1
|
|---|
| 416 | .Hyper.ss.u32Limit resd 1
|
|---|
| 417 | .Hyper.ss.Attr resd 1
|
|---|
| 418 | .Hyper.ds.Sel resw 1
|
|---|
| 419 | .Hyper.ds.PaddingSel resw 1
|
|---|
| 420 | .Hyper.ds.ValidSel resw 1
|
|---|
| 421 | .Hyper.ds.fFlags resw 1
|
|---|
| 422 | .Hyper.ds.u64Base resq 1
|
|---|
| 423 | .Hyper.ds.u32Limit resd 1
|
|---|
| 424 | .Hyper.ds.Attr resd 1
|
|---|
| 425 | .Hyper.fs.Sel resw 1
|
|---|
| 426 | .Hyper.fs.PaddingSel resw 1
|
|---|
| 427 | .Hyper.fs.ValidSel resw 1
|
|---|
| 428 | .Hyper.fs.fFlags resw 1
|
|---|
| 429 | .Hyper.fs.u64Base resq 1
|
|---|
| 430 | .Hyper.fs.u32Limit resd 1
|
|---|
| 431 | .Hyper.fs.Attr resd 1
|
|---|
| 432 | .Hyper.gs.Sel resw 1
|
|---|
| 433 | .Hyper.gs.PaddingSel resw 1
|
|---|
| 434 | .Hyper.gs.ValidSel resw 1
|
|---|
| 435 | .Hyper.gs.fFlags resw 1
|
|---|
| 436 | .Hyper.gs.u64Base resq 1
|
|---|
| 437 | .Hyper.gs.u32Limit resd 1
|
|---|
| 438 | .Hyper.gs.Attr resd 1
|
|---|
| 439 | .Hyper.eip resq 1
|
|---|
| 440 | .Hyper.eflags resq 1
|
|---|
| 441 | .Hyper.cr0 resq 1
|
|---|
| 442 | .Hyper.cr2 resq 1
|
|---|
| 443 | .Hyper.cr3 resq 1
|
|---|
| 444 | .Hyper.cr4 resq 1
|
|---|
| 445 | .Hyper.dr resq 8
|
|---|
| 446 | .Hyper.gdtrPadding resw 3
|
|---|
| 447 | .Hyper.gdtr resw 0
|
|---|
| 448 | .Hyper.gdtr.cbGdt resw 1
|
|---|
| 449 | .Hyper.gdtr.pGdt resq 1
|
|---|
| 450 | .Hyper.idtrPadding resw 3
|
|---|
| 451 | .Hyper.idtr resw 0
|
|---|
| 452 | .Hyper.idtr.cbIdt resw 1
|
|---|
| 453 | .Hyper.idtr.pIdt resq 1
|
|---|
| 454 | .Hyper.ldtr.Sel resw 1
|
|---|
| 455 | .Hyper.ldtr.PaddingSel resw 1
|
|---|
| 456 | .Hyper.ldtr.ValidSel resw 1
|
|---|
| 457 | .Hyper.ldtr.fFlags resw 1
|
|---|
| 458 | .Hyper.ldtr.u64Base resq 1
|
|---|
| 459 | .Hyper.ldtr.u32Limit resd 1
|
|---|
| 460 | .Hyper.ldtr.Attr resd 1
|
|---|
| 461 | .Hyper.tr.Sel resw 1
|
|---|
| 462 | .Hyper.tr.PaddingSel resw 1
|
|---|
| 463 | .Hyper.tr.ValidSel resw 1
|
|---|
| 464 | .Hyper.tr.fFlags resw 1
|
|---|
| 465 | .Hyper.tr.u64Base resq 1
|
|---|
| 466 | .Hyper.tr.u32Limit resd 1
|
|---|
| 467 | .Hyper.tr.Attr resd 1
|
|---|
| 468 | .Hyper.SysEnter.cs resb 8
|
|---|
| 469 | .Hyper.SysEnter.eip resb 8
|
|---|
| 470 | .Hyper.SysEnter.esp resb 8
|
|---|
| 471 | .Hyper.msrEFER resb 8
|
|---|
| 472 | .Hyper.msrSTAR resb 8
|
|---|
| 473 | .Hyper.msrPAT resb 8
|
|---|
| 474 | .Hyper.msrLSTAR resb 8
|
|---|
| 475 | .Hyper.msrCSTAR resb 8
|
|---|
| 476 | .Hyper.msrSFMASK resb 8
|
|---|
| 477 | .Hyper.msrKERNELGSBASE resb 8
|
|---|
| 478 | .Hyper.msrApicBase resb 8
|
|---|
| 479 | .Hyper.aXcr resq 2
|
|---|
| 480 | .Hyper.fXStateMask resq 1
|
|---|
| 481 | .Hyper.pXStateR0 RTR0PTR_RES 1
|
|---|
| 482 | .Hyper.pXStateR3 RTR3PTR_RES 1
|
|---|
| 483 | .Hyper.pXStateRC RTRCPTR_RES 1
|
|---|
| 484 | .Hyper.aoffXState resw 64
|
|---|
| 485 | alignb 64
|
|---|
| 486 |
|
|---|
| 487 | %ifdef VBOX_WITH_CRASHDUMP_MAGIC
|
|---|
| 488 | .aMagic resb 56
|
|---|
| 489 | .uMagic resq 1
|
|---|
| 490 | %endif
|
|---|
| 491 | endstruc
|
|---|
| 492 |
|
|---|
| 493 |
|
|---|
| 494 | ;;
|
|---|
| 495 | ; Converts the CPUM pointer to CPUMCPU
|
|---|
| 496 | ; @param %1 register name
|
|---|
| 497 | %macro CPUMCPU_FROM_CPUM 1
|
|---|
| 498 | add %1, dword [%1 + CPUM.offCPUMCPU0]
|
|---|
| 499 | %endmacro
|
|---|
| 500 |
|
|---|
| 501 | ;;
|
|---|
| 502 | ; Converts the CPUM pointer to CPUMCPU
|
|---|
| 503 | ; @param %1 register name (CPUM)
|
|---|
| 504 | ; @param %2 register name (CPUMCPU offset)
|
|---|
| 505 | %macro CPUMCPU_FROM_CPUM_WITH_OFFSET 2
|
|---|
| 506 | add %1, %2
|
|---|
| 507 | %endmacro
|
|---|
| 508 |
|
|---|
| 509 | ;;
|
|---|
| 510 | ; Converts the CPUMCPU pointer to CPUM
|
|---|
| 511 | ; @param %1 register name
|
|---|
| 512 | %macro CPUM_FROM_CPUMCPU 1
|
|---|
| 513 | sub %1, dword [%1 + CPUMCPU.offCPUM]
|
|---|
| 514 | %endmacro
|
|---|
| 515 |
|
|---|
| 516 | ;;
|
|---|
| 517 | ; Converts the CPUMCPU pointer to CPUM
|
|---|
| 518 | ; @param %1 register name (CPUM)
|
|---|
| 519 | ; @param %2 register name (CPUMCPU offset)
|
|---|
| 520 | %macro CPUM_FROM_CPUMCPU_WITH_OFFSET 2
|
|---|
| 521 | sub %1, %2
|
|---|
| 522 | %endmacro
|
|---|
| 523 |
|
|---|
| 524 |
|
|---|
| 525 |
|
|---|
| 526 | %if 0 ; Currently not used anywhere.
|
|---|
| 527 | ;;
|
|---|
| 528 | ; Macro for FXSAVE/FXRSTOR leaky behaviour on AMD CPUs, see cpumR3CheckLeakyFpu().
|
|---|
| 529 | ;
|
|---|
| 530 | ; Cleans the FPU state, if necessary, before restoring the FPU.
|
|---|
| 531 | ;
|
|---|
| 532 | ; This macro ASSUMES CR0.TS is not set!
|
|---|
| 533 | ;
|
|---|
| 534 | ; @param xDX Pointer to CPUMCPU.
|
|---|
| 535 | ; @uses xAX, EFLAGS
|
|---|
| 536 | ;
|
|---|
| 537 | ; Changes here should also be reflected in CPUMRCA.asm's copy!
|
|---|
| 538 | ;
|
|---|
| 539 | %macro CLEANFPU 0
|
|---|
| 540 | test dword [xDX + CPUMCPU.fUseFlags], CPUM_USE_FFXSR_LEAKY
|
|---|
| 541 | jz .nothing_to_clean
|
|---|
| 542 |
|
|---|
| 543 | xor eax, eax
|
|---|
| 544 | fnstsw ax ; FSW -> AX.
|
|---|
| 545 | test eax, RT_BIT(7) ; If FSW.ES (bit 7) is set, clear it to not cause FPU exceptions
|
|---|
| 546 | ; while clearing & loading the FPU bits in 'clean_fpu' below.
|
|---|
| 547 | jz .clean_fpu
|
|---|
| 548 | fnclex
|
|---|
| 549 |
|
|---|
| 550 | .clean_fpu:
|
|---|
| 551 | ffree st7 ; Clear FPU stack register(7)'s tag entry to prevent overflow if a wraparound occurs.
|
|---|
| 552 | ; for the upcoming push (load)
|
|---|
| 553 | fild dword [g_r32_Zero xWrtRIP] ; Explicit FPU load to overwrite FIP, FOP, FDP registers in the FPU.
|
|---|
| 554 | .nothing_to_clean:
|
|---|
| 555 | %endmacro
|
|---|
| 556 | %endif ; Unused.
|
|---|
| 557 |
|
|---|
| 558 |
|
|---|
| 559 | ;;
|
|---|
| 560 | ; Makes sure we don't trap (#NM) accessing the FPU.
|
|---|
| 561 | ;
|
|---|
| 562 | ; In ring-0 this is a bit of work since we may have try convince the host kernel
|
|---|
| 563 | ; to do the work for us, also, we must report any CR0 changes back to HMR0VMX
|
|---|
| 564 | ; via the VINF_CPUM_HOST_CR0_MODIFIED status code.
|
|---|
| 565 | ;
|
|---|
| 566 | ; If we end up clearing CR0.TS/EM ourselves in ring-0, we'll save the original
|
|---|
| 567 | ; value in CPUMCPU.Host.cr0Fpu. If we don't, we'll store zero there. (See also
|
|---|
| 568 | ; CPUMRZ_RESTORE_CR0_IF_TS_OR_EM_SET.)
|
|---|
| 569 | ;
|
|---|
| 570 | ; In raw-mode we will always have to clear TS and it will be recalculated
|
|---|
| 571 | ; elsewhere and thus needs no saving.
|
|---|
| 572 | ;
|
|---|
| 573 | ; @param %1 Register to return the return status code in.
|
|---|
| 574 | ; @param %2 Temporary scratch register.
|
|---|
| 575 | ; @param %3 Ring-0 only, register pointing to the CPUMCPU structure
|
|---|
| 576 | ; of the EMT we're on.
|
|---|
| 577 | ; @uses EFLAGS, CR0, %1, %2
|
|---|
| 578 | ;
|
|---|
| 579 | %macro CPUMRZ_TOUCH_FPU_CLEAR_CR0_FPU_TRAPS_SET_RC 3
|
|---|
| 580 | %ifdef IN_RC
|
|---|
| 581 | ;
|
|---|
| 582 | ; raw-mode - always clear it. We won't be here otherwise.
|
|---|
| 583 | ;
|
|---|
| 584 | mov %2, cr0
|
|---|
| 585 | and %2, ~(X86_CR0_TS | X86_CR0_EM)
|
|---|
| 586 | mov cr0, %2
|
|---|
| 587 |
|
|---|
| 588 | %else
|
|---|
| 589 | ;
|
|---|
| 590 | ; ring-0 - slightly complicated.
|
|---|
| 591 | ;
|
|---|
| 592 | xor %1, %1 ; 0 / VINF_SUCCESS. Wishing for no CR0 changes.
|
|---|
| 593 | mov [%3 + CPUMCPU.Host.cr0Fpu], %1
|
|---|
| 594 |
|
|---|
| 595 | mov %2, cr0
|
|---|
| 596 | test %2, X86_CR0_TS | X86_CR0_EM ; Make sure its safe to access the FPU state.
|
|---|
| 597 | jz %%no_cr0_change
|
|---|
| 598 |
|
|---|
| 599 | %ifdef VMM_R0_TOUCH_FPU
|
|---|
| 600 | ; Touch the state and check that the kernel updated CR0 for us.
|
|---|
| 601 | movdqa xmm0, xmm0
|
|---|
| 602 | mov %2, cr0
|
|---|
| 603 | test %2, X86_CR0_TS | X86_CR0_EM
|
|---|
| 604 | jz %%cr0_changed
|
|---|
| 605 | %endif
|
|---|
| 606 |
|
|---|
| 607 | ; Save CR0 and clear them flags ourselves.
|
|---|
| 608 | mov [%3 + CPUMCPU.Host.cr0Fpu], %2
|
|---|
| 609 | and %2, ~(X86_CR0_TS | X86_CR0_EM)
|
|---|
| 610 | mov cr0, %2
|
|---|
| 611 | %endif ; IN_RING0
|
|---|
| 612 |
|
|---|
| 613 | %%cr0_changed:
|
|---|
| 614 | mov %1, VINF_CPUM_HOST_CR0_MODIFIED
|
|---|
| 615 | %%no_cr0_change:
|
|---|
| 616 | %endmacro
|
|---|
| 617 |
|
|---|
| 618 |
|
|---|
| 619 | ;;
|
|---|
| 620 | ; Restore CR0 if CR0.TS or CR0.EM were non-zero in the original state.
|
|---|
| 621 | ;
|
|---|
| 622 | ; @param %1 The original state to restore (or zero).
|
|---|
| 623 | ;
|
|---|
| 624 | %macro CPUMRZ_RESTORE_CR0_IF_TS_OR_EM_SET 1
|
|---|
| 625 | test %1, X86_CR0_TS | X86_CR0_EM
|
|---|
| 626 | jz %%skip_cr0_restore
|
|---|
| 627 | mov cr0, %1
|
|---|
| 628 | %%skip_cr0_restore:
|
|---|
| 629 | %endmacro
|
|---|
| 630 |
|
|---|
| 631 |
|
|---|
| 632 | ;;
|
|---|
| 633 | ; Saves the host state.
|
|---|
| 634 | ;
|
|---|
| 635 | ; @uses rax, rdx
|
|---|
| 636 | ; @param pCpumCpu Define for the register containing the CPUMCPU pointer.
|
|---|
| 637 | ; @param pXState Define for the register containing the extended state pointer.
|
|---|
| 638 | ;
|
|---|
| 639 | %macro CPUMR0_SAVE_HOST 0
|
|---|
| 640 | ;
|
|---|
| 641 | ; Load a couple of registers we'll use later in all branches.
|
|---|
| 642 | ;
|
|---|
| 643 | %ifdef IN_RING0
|
|---|
| 644 | mov pXState, [pCpumCpu + CPUMCPU.Host.pXStateR0]
|
|---|
| 645 | %elifdef IN_RC
|
|---|
| 646 | mov pXState, [pCpumCpu + CPUMCPU.Host.pXStateRC]
|
|---|
| 647 | %else
|
|---|
| 648 | %error "Unsupported context!"
|
|---|
| 649 | %endif
|
|---|
| 650 | mov eax, [pCpumCpu + CPUMCPU.Host.fXStateMask]
|
|---|
| 651 |
|
|---|
| 652 | ;
|
|---|
| 653 | ; XSAVE or FXSAVE?
|
|---|
| 654 | ;
|
|---|
| 655 | or eax, eax
|
|---|
| 656 | jz %%host_fxsave
|
|---|
| 657 |
|
|---|
| 658 | ; XSAVE
|
|---|
| 659 | mov edx, [pCpumCpu + CPUMCPU.Host.fXStateMask + 4]
|
|---|
| 660 | %ifdef RT_ARCH_AMD64
|
|---|
| 661 | o64 xsave [pXState]
|
|---|
| 662 | %else
|
|---|
| 663 | xsave [pXState]
|
|---|
| 664 | %endif
|
|---|
| 665 | jmp %%host_done
|
|---|
| 666 |
|
|---|
| 667 | ; FXSAVE
|
|---|
| 668 | %%host_fxsave:
|
|---|
| 669 | %ifdef RT_ARCH_AMD64
|
|---|
| 670 | o64 fxsave [pXState] ; Use explicit REX prefix. See @bugref{6398}.
|
|---|
| 671 | %else
|
|---|
| 672 | fxsave [pXState]
|
|---|
| 673 | %endif
|
|---|
| 674 |
|
|---|
| 675 | %%host_done:
|
|---|
| 676 | %endmacro ; CPUMR0_SAVE_HOST
|
|---|
| 677 |
|
|---|
| 678 |
|
|---|
| 679 | ;;
|
|---|
| 680 | ; Loads the host state.
|
|---|
| 681 | ;
|
|---|
| 682 | ; @uses rax, rdx
|
|---|
| 683 | ; @param pCpumCpu Define for the register containing the CPUMCPU pointer.
|
|---|
| 684 | ; @param pXState Define for the register containing the extended state pointer.
|
|---|
| 685 | ;
|
|---|
| 686 | %macro CPUMR0_LOAD_HOST 0
|
|---|
| 687 | ;
|
|---|
| 688 | ; Load a couple of registers we'll use later in all branches.
|
|---|
| 689 | ;
|
|---|
| 690 | %ifdef IN_RING0
|
|---|
| 691 | mov pXState, [pCpumCpu + CPUMCPU.Host.pXStateR0]
|
|---|
| 692 | %elifdef IN_RC
|
|---|
| 693 | mov pXState, [pCpumCpu + CPUMCPU.Host.pXStateRC]
|
|---|
| 694 | %else
|
|---|
| 695 | %error "Unsupported context!"
|
|---|
| 696 | %endif
|
|---|
| 697 | mov eax, [pCpumCpu + CPUMCPU.Host.fXStateMask]
|
|---|
| 698 |
|
|---|
| 699 | ;
|
|---|
| 700 | ; XRSTOR or FXRSTOR?
|
|---|
| 701 | ;
|
|---|
| 702 | or eax, eax
|
|---|
| 703 | jz %%host_fxrstor
|
|---|
| 704 |
|
|---|
| 705 | ; XRSTOR
|
|---|
| 706 | mov edx, [pCpumCpu + CPUMCPU.Host.fXStateMask + 4]
|
|---|
| 707 | %ifdef RT_ARCH_AMD64
|
|---|
| 708 | o64 xrstor [pXState]
|
|---|
| 709 | %else
|
|---|
| 710 | xrstor [pXState]
|
|---|
| 711 | %endif
|
|---|
| 712 | jmp %%host_done
|
|---|
| 713 |
|
|---|
| 714 | ; FXRSTOR
|
|---|
| 715 | %%host_fxrstor:
|
|---|
| 716 | %ifdef RT_ARCH_AMD64
|
|---|
| 717 | o64 fxrstor [pXState] ; Use explicit REX prefix. See @bugref{6398}.
|
|---|
| 718 | %else
|
|---|
| 719 | fxrstor [pXState]
|
|---|
| 720 | %endif
|
|---|
| 721 |
|
|---|
| 722 | %%host_done:
|
|---|
| 723 | %endmacro ; CPUMR0_LOAD_HOST
|
|---|
| 724 |
|
|---|
| 725 |
|
|---|
| 726 |
|
|---|
| 727 | ;; Macro for XSAVE/FXSAVE for the guest FPU but tries to figure out whether to
|
|---|
| 728 | ; save the 32-bit FPU state or 64-bit FPU state.
|
|---|
| 729 | ;
|
|---|
| 730 | ; @param %1 Pointer to CPUMCPU.
|
|---|
| 731 | ; @param %2 Pointer to XState.
|
|---|
| 732 | ; @param %3 Force AMD64
|
|---|
| 733 | ; @param %4 The instruction to use (xsave or fxsave)
|
|---|
| 734 | ; @uses xAX, xDX, EFLAGS, 20h of stack.
|
|---|
| 735 | ;
|
|---|
| 736 | %macro SAVE_32_OR_64_FPU 4
|
|---|
| 737 | %if CPUM_IS_AMD64 || %3
|
|---|
| 738 | ; Save the guest FPU (32-bit or 64-bit), preserves existing broken state. See @bugref{7138}.
|
|---|
| 739 | test dword [pCpumCpu + CPUMCPU.fUseFlags], CPUM_USE_SUPPORTS_LONGMODE
|
|---|
| 740 | jnz short %%save_long_mode_guest
|
|---|
| 741 | %endif
|
|---|
| 742 | %4 [pXState]
|
|---|
| 743 | %if CPUM_IS_AMD64 || %3
|
|---|
| 744 | jmp %%save_done_32bit_cs_ds
|
|---|
| 745 |
|
|---|
| 746 | %%save_long_mode_guest:
|
|---|
| 747 | o64 %4 [pXState]
|
|---|
| 748 |
|
|---|
| 749 | xor edx, edx
|
|---|
| 750 | cmp dword [pXState + X86FXSTATE.FPUCS], 0
|
|---|
| 751 | jne short %%save_done
|
|---|
| 752 |
|
|---|
| 753 | sub rsp, 20h ; Only need 1ch bytes but keep stack aligned otherwise we #GP(0).
|
|---|
| 754 | fnstenv [rsp]
|
|---|
| 755 | movzx eax, word [rsp + 10h]
|
|---|
| 756 | mov [pXState + X86FXSTATE.FPUCS], eax
|
|---|
| 757 | movzx eax, word [rsp + 18h]
|
|---|
| 758 | add rsp, 20h
|
|---|
| 759 | mov [pXState + X86FXSTATE.FPUDS], eax
|
|---|
| 760 | %endif
|
|---|
| 761 | %%save_done_32bit_cs_ds:
|
|---|
| 762 | mov edx, X86_FXSTATE_RSVD_32BIT_MAGIC
|
|---|
| 763 | %%save_done:
|
|---|
| 764 | mov dword [pXState + X86_OFF_FXSTATE_RSVD], edx
|
|---|
| 765 | %endmacro ; SAVE_32_OR_64_FPU
|
|---|
| 766 |
|
|---|
| 767 |
|
|---|
| 768 | ;;
|
|---|
| 769 | ; Save the guest state.
|
|---|
| 770 | ;
|
|---|
| 771 | ; @uses rax, rdx
|
|---|
| 772 | ; @param pCpumCpu Define for the register containing the CPUMCPU pointer.
|
|---|
| 773 | ; @param pXState Define for the register containing the extended state pointer.
|
|---|
| 774 | ;
|
|---|
| 775 | %macro CPUMR0_SAVE_GUEST 0
|
|---|
| 776 | ;
|
|---|
| 777 | ; Load a couple of registers we'll use later in all branches.
|
|---|
| 778 | ;
|
|---|
| 779 | %ifdef IN_RING0
|
|---|
| 780 | mov pXState, [pCpumCpu + CPUMCPU.Guest.pXStateR0]
|
|---|
| 781 | %elifdef IN_RC
|
|---|
| 782 | mov pXState, [pCpumCpu + CPUMCPU.Guest.pXStateRC]
|
|---|
| 783 | %else
|
|---|
| 784 | %error "Unsupported context!"
|
|---|
| 785 | %endif
|
|---|
| 786 | mov eax, [pCpumCpu + CPUMCPU.Guest.fXStateMask]
|
|---|
| 787 |
|
|---|
| 788 | ;
|
|---|
| 789 | ; XSAVE or FXSAVE?
|
|---|
| 790 | ;
|
|---|
| 791 | or eax, eax
|
|---|
| 792 | jz %%guest_fxsave
|
|---|
| 793 |
|
|---|
| 794 | ; XSAVE
|
|---|
| 795 | mov edx, [pCpumCpu + CPUMCPU.Guest.fXStateMask + 4]
|
|---|
| 796 | %ifdef VBOX_WITH_KERNEL_USING_XMM
|
|---|
| 797 | and eax, ~CPUM_VOLATILE_XSAVE_GUEST_COMPONENTS ; Already saved in HMR0A.asm.
|
|---|
| 798 | %endif
|
|---|
| 799 | SAVE_32_OR_64_FPU pCpumCpu, pXState, 0, xsave
|
|---|
| 800 | jmp %%guest_done
|
|---|
| 801 |
|
|---|
| 802 | ; FXSAVE
|
|---|
| 803 | %%guest_fxsave:
|
|---|
| 804 | SAVE_32_OR_64_FPU pCpumCpu, pXState, 0, fxsave
|
|---|
| 805 |
|
|---|
| 806 | %%guest_done:
|
|---|
| 807 | %endmacro ; CPUMR0_SAVE_GUEST
|
|---|
| 808 |
|
|---|
| 809 |
|
|---|
| 810 | ;;
|
|---|
| 811 | ; Wrapper for selecting 32-bit or 64-bit XRSTOR/FXRSTOR according to what SAVE_32_OR_64_FPU did.
|
|---|
| 812 | ;
|
|---|
| 813 | ; @param %1 Pointer to CPUMCPU.
|
|---|
| 814 | ; @param %2 Pointer to XState.
|
|---|
| 815 | ; @param %3 Force AMD64.
|
|---|
| 816 | ; @param %4 The instruction to use (xrstor or fxrstor).
|
|---|
| 817 | ; @uses xAX, xDX, EFLAGS
|
|---|
| 818 | ;
|
|---|
| 819 | %macro RESTORE_32_OR_64_FPU 4
|
|---|
| 820 | %if CPUM_IS_AMD64 || %3
|
|---|
| 821 | ; Restore the guest FPU (32-bit or 64-bit), preserves existing broken state. See @bugref{7138}.
|
|---|
| 822 | test dword [pCpumCpu + CPUMCPU.fUseFlags], CPUM_USE_SUPPORTS_LONGMODE
|
|---|
| 823 | jz %%restore_32bit_fpu
|
|---|
| 824 | cmp dword [pXState + X86_OFF_FXSTATE_RSVD], X86_FXSTATE_RSVD_32BIT_MAGIC
|
|---|
| 825 | jne short %%restore_64bit_fpu
|
|---|
| 826 | %%restore_32bit_fpu:
|
|---|
| 827 | %endif
|
|---|
| 828 | %4 [pXState]
|
|---|
| 829 | %if CPUM_IS_AMD64 || %3
|
|---|
| 830 | ; TODO: Restore XMM8-XMM15!
|
|---|
| 831 | jmp short %%restore_fpu_done
|
|---|
| 832 | %%restore_64bit_fpu:
|
|---|
| 833 | o64 %4 [pXState]
|
|---|
| 834 | %%restore_fpu_done:
|
|---|
| 835 | %endif
|
|---|
| 836 | %endmacro ; RESTORE_32_OR_64_FPU
|
|---|
| 837 |
|
|---|
| 838 |
|
|---|
| 839 | ;;
|
|---|
| 840 | ; Loads the guest state.
|
|---|
| 841 | ;
|
|---|
| 842 | ; @uses rax, rdx
|
|---|
| 843 | ; @param pCpumCpu Define for the register containing the CPUMCPU pointer.
|
|---|
| 844 | ; @param pXState Define for the register containing the extended state pointer.
|
|---|
| 845 | ;
|
|---|
| 846 | %macro CPUMR0_LOAD_GUEST 0
|
|---|
| 847 | ;
|
|---|
| 848 | ; Load a couple of registers we'll use later in all branches.
|
|---|
| 849 | ;
|
|---|
| 850 | %ifdef IN_RING0
|
|---|
| 851 | mov pXState, [pCpumCpu + CPUMCPU.Guest.pXStateR0]
|
|---|
| 852 | %elifdef IN_RC
|
|---|
| 853 | mov pXState, [pCpumCpu + CPUMCPU.Guest.pXStateRC]
|
|---|
| 854 | %else
|
|---|
| 855 | %error "Unsupported context!"
|
|---|
| 856 | %endif
|
|---|
| 857 | mov eax, [pCpumCpu + CPUMCPU.Guest.fXStateMask]
|
|---|
| 858 |
|
|---|
| 859 | ;
|
|---|
| 860 | ; XRSTOR or FXRSTOR?
|
|---|
| 861 | ;
|
|---|
| 862 | or eax, eax
|
|---|
| 863 | jz %%guest_fxrstor
|
|---|
| 864 |
|
|---|
| 865 | ; XRSTOR
|
|---|
| 866 | mov edx, [pCpumCpu + CPUMCPU.Guest.fXStateMask + 4]
|
|---|
| 867 | %ifdef VBOX_WITH_KERNEL_USING_XMM
|
|---|
| 868 | and eax, ~CPUM_VOLATILE_XSAVE_GUEST_COMPONENTS ; Will be loaded by HMR0A.asm.
|
|---|
| 869 | %endif
|
|---|
| 870 | RESTORE_32_OR_64_FPU pCpumCpu, pXState, 0, xrstor
|
|---|
| 871 | jmp %%guest_done
|
|---|
| 872 |
|
|---|
| 873 | ; FXRSTOR
|
|---|
| 874 | %%guest_fxrstor:
|
|---|
| 875 | RESTORE_32_OR_64_FPU pCpumCpu, pXState, 0, fxrstor
|
|---|
| 876 |
|
|---|
| 877 | %%guest_done:
|
|---|
| 878 | %endmacro ; CPUMR0_LOAD_GUEST
|
|---|
| 879 |
|
|---|
