| 1 | /* $Id: NEMR3.cpp 71275 2018-03-08 14:31:07Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * NEM - Native execution manager.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2018 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 | /** @page pg_nem NEM - Native Execution Manager.
|
|---|
| 19 | *
|
|---|
| 20 | * Later.
|
|---|
| 21 | *
|
|---|
| 22 | *
|
|---|
| 23 | * @section sec_nem_win Windows
|
|---|
| 24 | *
|
|---|
| 25 | * On Windows the Hyper-V root partition (dom0 in zen terminology) does not have
|
|---|
| 26 | * nested VT-x or AMD-V capabilities. For a while raw-mode worked in it,
|
|---|
| 27 | * however now we \#GP when modifying CR4. So, when Hyper-V is active on
|
|---|
| 28 | * Windows we have little choice but to use Hyper-V to run our VMs.
|
|---|
| 29 | *
|
|---|
| 30 | * @subsection subsec_nem_win_whv The WinHvPlatform API
|
|---|
| 31 | *
|
|---|
| 32 | * Since Windows 10 build 17083 there is a documented API for managing Hyper-V
|
|---|
| 33 | * VMs, header file WinHvPlatform.h and implementation in WinHvPlatform.dll.
|
|---|
| 34 | * This interface is a wrapper around the undocumented Virtualization
|
|---|
| 35 | * Infrastructure Driver (VID) API - VID.DLL and VID.SYS. The wrapper is
|
|---|
| 36 | * written in C++, namespaced and early version (at least) was using standard
|
|---|
| 37 | * container templates in several places.
|
|---|
| 38 | *
|
|---|
| 39 | * When creating a VM using WHvCreatePartition, it will only create the
|
|---|
| 40 | * WinHvPlatform structures for it, to which you get an abstract pointer. The
|
|---|
| 41 | * VID API that actually creates the partition is first engaged when you call
|
|---|
| 42 | * WHvSetupPartition after first setting a lot of properties using
|
|---|
| 43 | * WHvSetPartitionProperty. Since the VID API is just a very thin wrapper
|
|---|
| 44 | * around CreateFile and NtDeviceIoControl, it returns an actual HANDLE for the
|
|---|
| 45 | * partition WinHvPlatform. We fish this HANDLE out of the WinHvPlatform
|
|---|
| 46 | * partition structures because we need to talk directly to VID for reasons
|
|---|
| 47 | * we'll get to in a bit. (Btw. we could also intercept the CreateFileW or
|
|---|
| 48 | * NtDeviceIoControl calls from VID.DLL to get the HANDLE should fishing in the
|
|---|
| 49 | * partition structures become difficult.)
|
|---|
| 50 | *
|
|---|
| 51 | * The WinHvPlatform API requires us to both set the number of guest CPUs before
|
|---|
| 52 | * setting up the partition and call WHvCreateVirtualProcessor for each of them.
|
|---|
| 53 | * The CPU creation function boils down to a VidMessageSlotMap call that sets up
|
|---|
| 54 | * and maps a message buffer into ring-3 for async communication with hyper-V
|
|---|
| 55 | * and/or the VID.SYS thread actually running the CPU. When for instance a
|
|---|
| 56 | * VMEXIT is encountered, hyper-V sends a message that the
|
|---|
| 57 | * WHvRunVirtualProcessor API retrieves (and later acknowledges) via
|
|---|
| 58 | * VidMessageSlotHandleAndGetNext. It should be noteded that
|
|---|
| 59 | * WHvDeleteVirtualProcessor doesn't do much as there seems to be no partner
|
|---|
| 60 | * function VidMessagesSlotMap that reverses what it did.
|
|---|
| 61 | *
|
|---|
| 62 | * Memory is managed thru calls to WHvMapGpaRange and WHvUnmapGpaRange (GPA does
|
|---|
| 63 | * not mean grade point average here, but rather guest physical addressspace),
|
|---|
| 64 | * which corresponds to VidCreateVaGpaRangeSpecifyUserVa and VidDestroyGpaRange
|
|---|
| 65 | * respectively. As 'UserVa' indicates, the functions works on user process
|
|---|
| 66 | * memory. The mappings are also subject to quota restrictions, so the number
|
|---|
| 67 | * of ranges are limited and probably their total size as well. Obviously
|
|---|
| 68 | * VID.SYS keeps track of the ranges, but so does WinHvPlatform, which means
|
|---|
| 69 | * there is a bit of overhead involved and quota restrctions makes sense. For
|
|---|
| 70 | * some reason though, regions are lazily mapped on VMEXIT/memory by
|
|---|
| 71 | * WHvRunVirtualProcessor.
|
|---|
| 72 | *
|
|---|
| 73 | * Running guest code is done thru the WHvRunVirtualProcessor function. It
|
|---|
| 74 | * asynchronously starts or resumes hyper-V CPU execution and then waits for an
|
|---|
| 75 | * VMEXIT message. Other threads can interrupt the execution by using
|
|---|
| 76 | * WHvCancelVirtualProcessor, which which case the thread in
|
|---|
| 77 | * WHvRunVirtualProcessor is woken up via a dummy QueueUserAPC and will call
|
|---|
| 78 | * VidStopVirtualProcessor to asynchronously end execution. The stop CPU call
|
|---|
| 79 | * not immediately succeed if the CPU encountered a VMEXIT before the stop was
|
|---|
| 80 | * processed, in which case the VMEXIT needs to be processed first, and the
|
|---|
| 81 | * pending stop will be processed in a subsequent call to
|
|---|
| 82 | * WHvRunVirtualProcessor.
|
|---|
| 83 | *
|
|---|
| 84 | * {something about registers}
|
|---|
| 85 | *
|
|---|
| 86 | * @subsubsection subsubsec_nem_win_whv_cons Issues / Disadvantages
|
|---|
| 87 | *
|
|---|
| 88 | * Here are some observations:
|
|---|
| 89 | *
|
|---|
| 90 | * - The WHvCancelVirtualProcessor API schedules a dummy usermode APC callback
|
|---|
| 91 | * in order to cancel any current or future alertable wait in VID.SYS during
|
|---|
| 92 | * the VidMessageSlotHandleAndGetNext call.
|
|---|
| 93 | *
|
|---|
| 94 | * IIRC this will make the kernel schedule the callback thru
|
|---|
| 95 | * NTDLL!KiUserApcDispatcher by modifying the thread context and quite
|
|---|
| 96 | * possibly the userland thread stack. When the APC callback returns to
|
|---|
| 97 | * KiUserApcDispatcher, it will call NtContinue to restore the old thread
|
|---|
| 98 | * context and resume execution from there. Upshot this is a bit expensive.
|
|---|
| 99 | *
|
|---|
| 100 | * Using NtAltertThread call could do the same without the thread context
|
|---|
| 101 | * modifications and the extra kernel call.
|
|---|
| 102 | *
|
|---|
| 103 | *
|
|---|
| 104 | * - Not sure if this is a thing, but WHvCancelVirtualProcessor seems to cause
|
|---|
| 105 | * cause a lot more spurious WHvRunVirtualProcessor returns that what we get
|
|---|
| 106 | * with the replacement code. By spurious returns we mean that the
|
|---|
| 107 | * subsequent call to WHvRunVirtualProcessor would return immediately.
|
|---|
| 108 | *
|
|---|
| 109 | *
|
|---|
| 110 | * - When WHvRunVirtualProcessor returns without a message, or on a terse
|
|---|
| 111 | * VID message like HLT, it will make a kernel call to get some registers.
|
|---|
| 112 | * This is potentially inefficient if the caller decides he needs more
|
|---|
| 113 | * register state.
|
|---|
| 114 | *
|
|---|
| 115 | * It would be better to just return what's available and let the caller fetch
|
|---|
| 116 | * what is missing from his point of view in a single kernel call.
|
|---|
| 117 | *
|
|---|
| 118 | *
|
|---|
| 119 | * - The WHvRunVirtualProcessor implementation does lazy GPA range mappings when
|
|---|
| 120 | * a unmapped GPA message is received from hyper-V.
|
|---|
| 121 | *
|
|---|
| 122 | * Since MMIO is currently realized as unmapped GPA, this will slow down all
|
|---|
| 123 | * MMIO accesses a tiny little bit as WHvRunVirtualProcessor looks up the
|
|---|
| 124 | * guest physical address the checks if it's a pending lazy mapping.
|
|---|
| 125 | *
|
|---|
| 126 | *
|
|---|
| 127 | * - There is no API for modifying protection of a page within a GPA range.
|
|---|
| 128 | *
|
|---|
| 129 | * We're left with having to unmap the range and then remap it with the new
|
|---|
| 130 | * protection. For instance we're actively using this to track dirty VRAM
|
|---|
| 131 | * pages, which means there are occational readonly->writable transitions at
|
|---|
| 132 | * run time followed by bulk reversal to readonly when the display is
|
|---|
| 133 | * refreshed.
|
|---|
| 134 | *
|
|---|
| 135 | * Now to work around the issue, we do page sized GPA ranges. In addition to
|
|---|
| 136 | * add a lot of tracking overhead to WinHvPlatform and VID.SYS, it also causes
|
|---|
| 137 | * us to exceed our quota before we've even mapped a default sized VRAM
|
|---|
| 138 | * page-by-page. So, to work around this quota issue we have to lazily map
|
|---|
| 139 | * pages and actively restrict the number of mappings.
|
|---|
| 140 | *
|
|---|
| 141 | * Out best workaround thus far is bypassing WinHvPlatform and VID when in
|
|---|
| 142 | * comes to memory and instead us the hypercalls to do it (HvCallMapGpaPages,
|
|---|
| 143 | * HvCallUnmapGpaPages). (This also maps a whole lot better into our own
|
|---|
| 144 | * guest page management infrastructure.)
|
|---|
| 145 | *
|
|---|
| 146 | *
|
|---|
| 147 | * - Observed problems doing WHvUnmapGpaRange followed by WHvMapGpaRange.
|
|---|
| 148 | *
|
|---|
| 149 | * As mentioned above, we've been forced to use this sequence when modifying
|
|---|
| 150 | * page protection. However, when upgrading from readonly to writable, we've
|
|---|
| 151 | * ended up looping forever with the same write to readonly memory exit.
|
|---|
| 152 | *
|
|---|
| 153 | * Workaround: Insert a WHvRunVirtualProcessor call and make sure to get a GPA
|
|---|
| 154 | * unmapped exit between the two calls. Terrible for performance and code
|
|---|
| 155 | * sanity.
|
|---|
| 156 | *
|
|---|
| 157 | *
|
|---|
| 158 | * - WHVRunVirtualProcessor wastes time converting VID/Hyper-V messages to it's
|
|---|
| 159 | * own defined format.
|
|---|
| 160 | *
|
|---|
| 161 | * We understand this might be because Microsoft wishes to remain free to
|
|---|
| 162 | * modify the VID/Hyper-V messages, but it's still rather silly and does slow
|
|---|
| 163 | * things down.
|
|---|
| 164 | *
|
|---|
| 165 | *
|
|---|
| 166 | * - WHVRunVirtualProcessor would've benefited from using a callback interface:
|
|---|
| 167 | * - The potential size changes of the exit context structure wouldn't be
|
|---|
| 168 | * an issue, since the function could manage that itself.
|
|---|
| 169 | * - State handling could be optimized simplified (esp. cancellation).
|
|---|
| 170 | *
|
|---|
| 171 | *
|
|---|
| 172 | * - WHvGetVirtualProcessorRegisters and WHvSetVirtualProcessorRegisters
|
|---|
| 173 | * internally converts register names, probably using temporary heap buffers.
|
|---|
| 174 | *
|
|---|
| 175 | * From the looks of things, it's converting from WHV_REGISTER_NAME to
|
|---|
| 176 | * HV_REGISTER_NAME that's documented in the "Virtual Processor Register
|
|---|
| 177 | * Names" section of "Hypervisor Top-Level Functional Specification". This
|
|---|
| 178 | * feels like an awful waste of time. We simply cannot understand why it
|
|---|
| 179 | * wouldn't have sufficed to use HV_REGISTER_NAME here and simply checked the
|
|---|
| 180 | * input values if restrictions were desired.
|
|---|
| 181 | *
|
|---|
| 182 | * To avoid the heap + conversion overhead, we're currently using the
|
|---|
| 183 | * HvCallGetVpRegisters and HvCallSetVpRegisters calls directly.
|
|---|
| 184 | *
|
|---|
| 185 | *
|
|---|
| 186 | * - Why does WINHVR.SYS (or VID.SYS) only query/set 32 registers at the time
|
|---|
| 187 | * thru the HvCallGetVpRegisters and HvCallSetVpRegisters hypercalls?
|
|---|
| 188 | *
|
|---|
| 189 | * We've not trouble getting/setting all the registers defined by
|
|---|
| 190 | * WHV_REGISTER_NAME in one hypercall...
|
|---|
| 191 | *
|
|---|
| 192 | *
|
|---|
| 193 | * - .
|
|---|
| 194 | *
|
|---|
| 195 | */
|
|---|
| 196 |
|
|---|
| 197 |
|
|---|
| 198 | /*********************************************************************************************************************************
|
|---|
| 199 | * Header Files *
|
|---|
| 200 | *********************************************************************************************************************************/
|
|---|
| 201 | #define LOG_GROUP LOG_GROUP_NEM
|
|---|
| 202 | #include <VBox/vmm/nem.h>
|
|---|
| 203 | #include "NEMInternal.h"
|
|---|
| 204 | #include <VBox/vmm/vm.h>
|
|---|
| 205 |
|
|---|
| 206 | #include <iprt/asm.h>
|
|---|
| 207 |
|
|---|
| 208 |
|
|---|
| 209 |
|
|---|
| 210 | /**
|
|---|
| 211 | * Basic init and configuration reading.
|
|---|
| 212 | *
|
|---|
| 213 | * Always call NEMR3Term after calling this.
|
|---|
| 214 | *
|
|---|
| 215 | * @returns VBox status code.
|
|---|
| 216 | * @param pVM The cross context VM structure.
|
|---|
| 217 | */
|
|---|
| 218 | VMMR3_INT_DECL(int) NEMR3InitConfig(PVM pVM)
|
|---|
| 219 | {
|
|---|
| 220 | LogFlow(("NEMR3Init\n"));
|
|---|
| 221 |
|
|---|
| 222 | /*
|
|---|
| 223 | * Assert alignment and sizes.
|
|---|
| 224 | */
|
|---|
| 225 | AssertCompileMemberAlignment(VM, nem.s, 64);
|
|---|
| 226 | AssertCompile(sizeof(pVM->nem.s) <= sizeof(pVM->nem.padding));
|
|---|
| 227 |
|
|---|
| 228 | /*
|
|---|
| 229 | * Initialize state info so NEMR3Term will always be happy.
|
|---|
| 230 | * No returning prior to setting magics!
|
|---|
| 231 | */
|
|---|
| 232 | pVM->nem.s.u32Magic = NEM_MAGIC;
|
|---|
| 233 | for (VMCPUID iCpu = 0; iCpu < pVM->cCpus; iCpu++)
|
|---|
| 234 | pVM->aCpus[iCpu].nem.s.u32Magic = NEMCPU_MAGIC;
|
|---|
| 235 |
|
|---|
| 236 | /*
|
|---|
| 237 | * Read configuration.
|
|---|
| 238 | */
|
|---|
| 239 | PCFGMNODE pCfgNem = CFGMR3GetChild(CFGMR3GetRoot(pVM), "NEM/");
|
|---|
| 240 |
|
|---|
| 241 | /*
|
|---|
| 242 | * Validate the NEM settings.
|
|---|
| 243 | */
|
|---|
| 244 | int rc = CFGMR3ValidateConfig(pCfgNem,
|
|---|
| 245 | "/NEM/",
|
|---|
| 246 | "Enabled",
|
|---|
| 247 | "" /* pszValidNodes */, "NEM" /* pszWho */, 0 /* uInstance */);
|
|---|
| 248 | if (RT_FAILURE(rc))
|
|---|
| 249 | return rc;
|
|---|
| 250 |
|
|---|
| 251 | /** @cfgm{/NEM/NEMEnabled, bool, true}
|
|---|
| 252 | * Whether NEM is enabled. */
|
|---|
| 253 | rc = CFGMR3QueryBoolDef(pCfgNem, "Enabled", &pVM->nem.s.fEnabled, true);
|
|---|
| 254 | AssertLogRelRCReturn(rc, rc);
|
|---|
| 255 |
|
|---|
| 256 | return VINF_SUCCESS;
|
|---|
| 257 | }
|
|---|
| 258 |
|
|---|
| 259 |
|
|---|
| 260 | /**
|
|---|
| 261 | * This is called by HMR3Init() when HM cannot be used.
|
|---|
| 262 | *
|
|---|
| 263 | * Sets VM::bMainExecutionEngine to VM_EXEC_ENGINE_NATIVE_API if we can use a
|
|---|
| 264 | * native hypervisor API to execute the VM.
|
|---|
| 265 | *
|
|---|
| 266 | * @returns VBox status code.
|
|---|
| 267 | * @param pVM The cross context VM structure.
|
|---|
| 268 | * @param fFallback Whether this is a fallback call. Cleared if the VM is
|
|---|
| 269 | * configured to use NEM instead of HM.
|
|---|
| 270 | * @param fForced Whether /HM/HMForced was set. If set and we fail to
|
|---|
| 271 | * enable NEM, we'll return a failure status code.
|
|---|
| 272 | * Otherwise we'll assume HMR3Init falls back on raw-mode.
|
|---|
| 273 | */
|
|---|
| 274 | VMMR3_INT_DECL(int) NEMR3Init(PVM pVM, bool fFallback, bool fForced)
|
|---|
| 275 | {
|
|---|
| 276 | Assert(pVM->bMainExecutionEngine != VM_EXEC_ENGINE_NATIVE_API);
|
|---|
| 277 | int rc;
|
|---|
| 278 | if (pVM->nem.s.fEnabled)
|
|---|
| 279 | {
|
|---|
| 280 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 281 | rc = nemR3NativeInit(pVM, fFallback, fForced);
|
|---|
| 282 | ASMCompilerBarrier(); /* May have changed bMainExecutionEngine. */
|
|---|
| 283 | #else
|
|---|
| 284 | RT_NOREF(fFallback);
|
|---|
| 285 | rc = VINF_SUCCESS;
|
|---|
| 286 | #endif
|
|---|
| 287 | if (RT_SUCCESS(rc))
|
|---|
| 288 | {
|
|---|
| 289 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 290 | LogRel(("NEM: NEMR3Init: Active.\n"));
|
|---|
| 291 | else
|
|---|
| 292 | {
|
|---|
| 293 | LogRel(("NEM: NEMR3Init: Not available.\n"));
|
|---|
| 294 | if (fForced)
|
|---|
| 295 | rc = VERR_NEM_NOT_AVAILABLE;
|
|---|
| 296 | }
|
|---|
| 297 | }
|
|---|
| 298 | else
|
|---|
| 299 | LogRel(("NEM: NEMR3Init: Native init failed: %Rrc.\n", rc));
|
|---|
| 300 | }
|
|---|
| 301 | else
|
|---|
| 302 | {
|
|---|
| 303 | LogRel(("NEM: NEMR3Init: Disabled.\n"));
|
|---|
| 304 | rc = fForced ? VERR_NEM_NOT_ENABLED : VINF_SUCCESS;
|
|---|
| 305 | }
|
|---|
| 306 | return rc;
|
|---|
| 307 | }
|
|---|
| 308 |
|
|---|
| 309 |
|
|---|
| 310 | /**
|
|---|
| 311 | * Perform initialization that depends on CPUM working.
|
|---|
| 312 | *
|
|---|
| 313 | * This is a noop if NEM wasn't activated by a previous NEMR3Init() call.
|
|---|
| 314 | *
|
|---|
| 315 | * @returns VBox status code.
|
|---|
| 316 | * @param pVM The cross context VM structure.
|
|---|
| 317 | */
|
|---|
| 318 | VMMR3_INT_DECL(int) NEMR3InitAfterCPUM(PVM pVM)
|
|---|
| 319 | {
|
|---|
| 320 | int rc = VINF_SUCCESS;
|
|---|
| 321 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 322 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 323 | rc = nemR3NativeInitAfterCPUM(pVM);
|
|---|
| 324 | #else
|
|---|
| 325 | RT_NOREF(pVM);
|
|---|
| 326 | #endif
|
|---|
| 327 | return rc;
|
|---|
| 328 | }
|
|---|
| 329 |
|
|---|
| 330 |
|
|---|
| 331 | /**
|
|---|
| 332 | * Called when a init phase has completed.
|
|---|
| 333 | *
|
|---|
| 334 | * @returns VBox status code.
|
|---|
| 335 | * @param pVM The cross context VM structure.
|
|---|
| 336 | * @param enmWhat The phase that completed.
|
|---|
| 337 | */
|
|---|
| 338 | VMMR3_INT_DECL(int) NEMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
|
|---|
| 339 | {
|
|---|
| 340 | int rc = VINF_SUCCESS;
|
|---|
| 341 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 342 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 343 | rc = nemR3NativeInitCompleted(pVM, enmWhat);
|
|---|
| 344 | #else
|
|---|
| 345 | RT_NOREF(pVM, enmWhat);
|
|---|
| 346 | #endif
|
|---|
| 347 | return rc;
|
|---|
| 348 | }
|
|---|
| 349 |
|
|---|
| 350 |
|
|---|
| 351 | /**
|
|---|
| 352 | *
|
|---|
| 353 | * @returns VBox status code.
|
|---|
| 354 | * @param pVM The cross context VM structure.
|
|---|
| 355 | */
|
|---|
| 356 | VMMR3_INT_DECL(int) NEMR3Term(PVM pVM)
|
|---|
| 357 | {
|
|---|
| 358 | AssertReturn(pVM->nem.s.u32Magic == NEM_MAGIC, VERR_WRONG_ORDER);
|
|---|
| 359 | for (VMCPUID iCpu = 0; iCpu < pVM->cCpus; iCpu++)
|
|---|
| 360 | AssertReturn(pVM->aCpus[iCpu].nem.s.u32Magic == NEMCPU_MAGIC, VERR_WRONG_ORDER);
|
|---|
| 361 |
|
|---|
| 362 | /* Do native termination. */
|
|---|
| 363 | int rc = VINF_SUCCESS;
|
|---|
| 364 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 365 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 366 | rc = nemR3NativeTerm(pVM);
|
|---|
| 367 | #endif
|
|---|
| 368 |
|
|---|
| 369 | /* Mark it as terminated. */
|
|---|
| 370 | for (VMCPUID iCpu = 0; iCpu < pVM->cCpus; iCpu++)
|
|---|
| 371 | pVM->aCpus[iCpu].nem.s.u32Magic = NEMCPU_MAGIC_DEAD;
|
|---|
| 372 | pVM->nem.s.u32Magic = NEM_MAGIC_DEAD;
|
|---|
| 373 | return rc;
|
|---|
| 374 | }
|
|---|
| 375 |
|
|---|
| 376 |
|
|---|
| 377 | /**
|
|---|
| 378 | * The VM is being reset.
|
|---|
| 379 | *
|
|---|
| 380 | * @param pVM The cross context VM structure.
|
|---|
| 381 | */
|
|---|
| 382 | VMMR3_INT_DECL(void) NEMR3Reset(PVM pVM)
|
|---|
| 383 | {
|
|---|
| 384 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 385 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 386 | nemR3NativeReset(pVM);
|
|---|
| 387 | #else
|
|---|
| 388 | RT_NOREF(pVM);
|
|---|
| 389 | #endif
|
|---|
| 390 | }
|
|---|
| 391 |
|
|---|
| 392 |
|
|---|
| 393 | /**
|
|---|
| 394 | * Resets a virtual CPU.
|
|---|
| 395 | *
|
|---|
| 396 | * Used to bring up secondary CPUs on SMP as well as CPU hot plugging.
|
|---|
| 397 | *
|
|---|
| 398 | * @param pVCpu The cross context virtual CPU structure to reset.
|
|---|
| 399 | * @param fInitIpi Set if being reset due to INIT IPI.
|
|---|
| 400 | */
|
|---|
| 401 | VMMR3_INT_DECL(void) NEMR3ResetCpu(PVMCPU pVCpu, bool fInitIpi)
|
|---|
| 402 | {
|
|---|
| 403 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 404 | if (pVCpu->pVMR3->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 405 | nemR3NativeResetCpu(pVCpu, fInitIpi);
|
|---|
| 406 | #else
|
|---|
| 407 | RT_NOREF(pVCpu, fInitIpi);
|
|---|
| 408 | #endif
|
|---|
| 409 | }
|
|---|
| 410 |
|
|---|
| 411 |
|
|---|
| 412 | VMMR3_INT_DECL(VBOXSTRICTRC) NEMR3RunGC(PVM pVM, PVMCPU pVCpu)
|
|---|
| 413 | {
|
|---|
| 414 | Assert(VM_IS_NEM_ENABLED(pVM));
|
|---|
| 415 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 416 | return nemR3NativeRunGC(pVM, pVCpu);
|
|---|
| 417 | #else
|
|---|
| 418 | NOREF(pVM); NOREF(pVCpu);
|
|---|
| 419 | return VERR_INTERNAL_ERROR_3;
|
|---|
| 420 | #endif
|
|---|
| 421 | }
|
|---|
| 422 |
|
|---|
| 423 |
|
|---|
| 424 | VMMR3_INT_DECL(bool) NEMR3CanExecuteGuest(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
|
|---|
| 425 | {
|
|---|
| 426 | Assert(VM_IS_NEM_ENABLED(pVM));
|
|---|
| 427 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 428 | return nemR3NativeCanExecuteGuest(pVM, pVCpu, pCtx);
|
|---|
| 429 | #else
|
|---|
| 430 | NOREF(pVM); NOREF(pVCpu); NOREF(pCtx);
|
|---|
| 431 | return false;
|
|---|
| 432 | #endif
|
|---|
| 433 | }
|
|---|
| 434 |
|
|---|
| 435 |
|
|---|
| 436 | VMMR3_INT_DECL(bool) NEMR3SetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable)
|
|---|
| 437 | {
|
|---|
| 438 | Assert(VM_IS_NEM_ENABLED(pVM));
|
|---|
| 439 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 440 | return nemR3NativeSetSingleInstruction(pVM, pVCpu, fEnable);
|
|---|
| 441 | #else
|
|---|
| 442 | NOREF(pVM); NOREF(pVCpu); NOREF(fEnable);
|
|---|
| 443 | return false;
|
|---|
| 444 | #endif
|
|---|
| 445 | }
|
|---|
| 446 |
|
|---|
| 447 |
|
|---|
| 448 | VMMR3_INT_DECL(void) NEMR3NotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags)
|
|---|
| 449 | {
|
|---|
| 450 | AssertLogRelReturnVoid(VM_IS_NEM_ENABLED(pVM));
|
|---|
| 451 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 452 | nemR3NativeNotifyFF(pVM, pVCpu, fFlags);
|
|---|
| 453 | #else
|
|---|
| 454 | RT_NOREF(pVM, pVCpu, fFlags);
|
|---|
| 455 | #endif
|
|---|
| 456 | }
|
|---|
| 457 |
|
|---|
| 458 |
|
|---|
| 459 |
|
|---|
| 460 |
|
|---|
| 461 | VMMR3_INT_DECL(int) NEMR3NotifyPhysRamRegister(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb)
|
|---|
| 462 | {
|
|---|
| 463 | int rc = VINF_SUCCESS;
|
|---|
| 464 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 465 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 466 | rc = nemR3NativeNotifyPhysRamRegister(pVM, GCPhys, cb);
|
|---|
| 467 | #else
|
|---|
| 468 | NOREF(pVM); NOREF(GCPhys); NOREF(cb);
|
|---|
| 469 | #endif
|
|---|
| 470 | return rc;
|
|---|
| 471 | }
|
|---|
| 472 |
|
|---|
| 473 |
|
|---|
| 474 | VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags, void *pvMmio2)
|
|---|
| 475 | {
|
|---|
| 476 | int rc = VINF_SUCCESS;
|
|---|
| 477 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 478 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 479 | rc = nemR3NativeNotifyPhysMmioExMap(pVM, GCPhys, cb, fFlags, pvMmio2);
|
|---|
| 480 | #else
|
|---|
| 481 | NOREF(pVM); NOREF(GCPhys); NOREF(cb); NOREF(fFlags); NOREF(pvMmio2);
|
|---|
| 482 | #endif
|
|---|
| 483 | return rc;
|
|---|
| 484 | }
|
|---|
| 485 |
|
|---|
| 486 |
|
|---|
| 487 | VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExUnmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags)
|
|---|
| 488 | {
|
|---|
| 489 | int rc = VINF_SUCCESS;
|
|---|
| 490 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 491 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 492 | rc = nemR3NativeNotifyPhysMmioExUnmap(pVM, GCPhys, cb, fFlags);
|
|---|
| 493 | #else
|
|---|
| 494 | NOREF(pVM); NOREF(GCPhys); NOREF(cb); NOREF(fFlags);
|
|---|
| 495 | #endif
|
|---|
| 496 | return rc;
|
|---|
| 497 | }
|
|---|
| 498 |
|
|---|
| 499 |
|
|---|
| 500 | VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags)
|
|---|
| 501 | {
|
|---|
| 502 | int rc = VINF_SUCCESS;
|
|---|
| 503 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 504 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 505 | rc = nemR3NativeNotifyPhysRomRegisterEarly(pVM, GCPhys, cb, fFlags);
|
|---|
| 506 | #else
|
|---|
| 507 | NOREF(pVM); NOREF(GCPhys); NOREF(cb); NOREF(fFlags);
|
|---|
| 508 | #endif
|
|---|
| 509 | return rc;
|
|---|
| 510 | }
|
|---|
| 511 |
|
|---|
| 512 |
|
|---|
| 513 | /**
|
|---|
| 514 | * Called after the ROM range has been fully completed.
|
|---|
| 515 | *
|
|---|
| 516 | * This will be preceeded by a NEMR3NotifyPhysRomRegisterEarly() call as well a
|
|---|
| 517 | * number of NEMHCNotifyPhysPageProtChanged calls.
|
|---|
| 518 | *
|
|---|
| 519 | * @returns VBox status code
|
|---|
| 520 | * @param pVM The cross context VM structure.
|
|---|
| 521 | * @param GCPhys The ROM address (page aligned).
|
|---|
| 522 | * @param cb The size (page aligned).
|
|---|
| 523 | * @param fFlags NEM_NOTIFY_PHYS_ROM_F_XXX.
|
|---|
| 524 | */
|
|---|
| 525 | VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags)
|
|---|
| 526 | {
|
|---|
| 527 | int rc = VINF_SUCCESS;
|
|---|
| 528 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 529 | if (pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 530 | rc = nemR3NativeNotifyPhysRomRegisterLate(pVM, GCPhys, cb, fFlags);
|
|---|
| 531 | #else
|
|---|
| 532 | NOREF(pVM); NOREF(GCPhys); NOREF(cb); NOREF(fFlags);
|
|---|
| 533 | #endif
|
|---|
| 534 | return rc;
|
|---|
| 535 | }
|
|---|
| 536 |
|
|---|
| 537 |
|
|---|
| 538 | VMMR3_INT_DECL(void) NEMR3NotifySetA20(PVMCPU pVCpu, bool fEnabled)
|
|---|
| 539 | {
|
|---|
| 540 | #ifdef VBOX_WITH_NATIVE_NEM
|
|---|
| 541 | if (pVCpu->pVMR3->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API)
|
|---|
| 542 | nemR3NativeNotifySetA20(pVCpu, fEnabled);
|
|---|
| 543 | #else
|
|---|
| 544 | NOREF(pVCpu); NOREF(fEnabled);
|
|---|
| 545 | #endif
|
|---|
| 546 | }
|
|---|
| 547 |
|
|---|
