NEMR3Native-win-armv8.cpp@ 108368

Last change on this file since 108368 was 108366, checked in by vboxsync, 2 months ago
VMM/NEMR3Native-win-armv8.cpp: Fix todo, don't import the whole VM state when handling a VM exit except for when state logging is enabled, bugref:10392
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 147.5 KB

Line
1	/* $Id: NEMR3Native-win-armv8.cpp 108366 2025-02-25 10:35:57Z vboxsync $ */
2	/** @file
3	* NEM - Native execution manager, native ring-3 Windows backend.
4	*
5	* Log group 2: Exit logging.
6	* Log group 3: Log context on exit.
7	* Log group 5: Ring-3 memory management
8	* Log group 6: Ring-0 memory management
9	* Log group 12: API intercepts.
10	*/
11
12	/*
13	* Copyright (C) 2018-2024 Oracle and/or its affiliates.
14	*
15	* This file is part of VirtualBox base platform packages, as
16	* available from https://www.virtualbox.org.
17	*
18	* This program is free software; you can redistribute it and/or
19	* modify it under the terms of the GNU General Public License
20	* as published by the Free Software Foundation, in version 3 of the
21	* License.
22	*
23	* This program is distributed in the hope that it will be useful, but
24	* WITHOUT ANY WARRANTY; without even the implied warranty of
25	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26	* General Public License for more details.
27	*
28	* You should have received a copy of the GNU General Public License
29	* along with this program; if not, see <https://www.gnu.org/licenses>.
30	*
31	* SPDX-License-Identifier: GPL-3.0-only
32	*/
33
34
35	/*********************************************************************************************************************************
36	* Header Files *
37	*********************************************************************************************************************************/
38	#define LOG_GROUP LOG_GROUP_NEM
39	#define VMCPU_INCL_CPUM_GST_CTX
40	#include <iprt/nt/nt-and-windows.h>
41	#include <iprt/nt/hyperv.h>
42	#include <WinHvPlatform.h>
43
44	#ifndef _WIN32_WINNT_WIN10
45	# error "Missing _WIN32_WINNT_WIN10"
46	#endif
47	#ifndef _WIN32_WINNT_WIN10_RS1 /* Missing define, causing trouble for us. */
48	# define _WIN32_WINNT_WIN10_RS1 (_WIN32_WINNT_WIN10 + 1)
49	#endif
50	#include <sysinfoapi.h>
51	#include <debugapi.h>
52	#include <errhandlingapi.h>
53	#include <fileapi.h>
54	#include <winerror.h> /* no api header for this. */
55
56	#include <VBox/dis.h>
57	#include <VBox/vmm/nem.h>
58	#include <VBox/vmm/iem.h>
59	#include <VBox/vmm/em.h>
60	#include <VBox/vmm/pdmapic.h>
61	#include <VBox/vmm/pdm.h>
62	#include <VBox/vmm/dbgftrace.h>
63	#include "NEMInternal.h"
64	#include <VBox/vmm/vmcc.h>
65
66	#include <iprt/formats/arm-psci.h>
67
68	#include <iprt/ldr.h>
69	#include <iprt/path.h>
70	#include <iprt/string.h>
71	#include <iprt/system.h>
72	#include <iprt/utf16.h>
73
74	#ifndef NTDDI_WIN10_VB /* Present in W10 2004 SDK, quite possibly earlier. */
75	HRESULT WINAPI WHvQueryGpaRangeDirtyBitmap(WHV_PARTITION_HANDLE, WHV_GUEST_PHYSICAL_ADDRESS, UINT64, UINT64 *, UINT32);
76	# define WHvMapGpaRangeFlagTrackDirtyPages ((WHV_MAP_GPA_RANGE_FLAGS)0x00000008)
77	#endif
78
79
80	/*
81	* The following definitions appeared in build 27744 allow configuring the base address of the GICv3 controller,
82	* (there is no official SDK for this yet).
83	*/
84	/** @todo Better way of defining these which doesn't require casting later on when calling APIs. */
85	#define WHV_PARTITION_PROPERTY_CODE_ARM64_IC_PARAMETERS UINT32_C(0x00001012)
86	/** No GIC present. */
87	#define WHV_ARM64_IC_EMULATION_MODE_NONE 0
88	/** Hyper-V emulates a GICv3. */
89	#define WHV_ARM64_IC_EMULATION_MODE_GICV3 1
90
91	/**
92	* Configures the interrupt controller emulated by Hyper-V.
93	*/
94	typedef struct MY_WHV_ARM64_IC_PARAMETERS
95	{
96	uint32_t u32EmulationMode;
97	uint32_t u32Rsvd;
98	union
99	{
100	struct
101	{
102	RTGCPHYS GCPhysGicdBase;
103	RTGCPHYS GCPhysGitsTranslaterBase;
104	uint32_t u32Rsvd;
105	uint32_t cLpiIntIdBits;
106	uint32_t u32PpiCntvOverflw;
107	uint32_t u32PpiPmu;
108	uint32_t au32Rsvd[6];
109	} GicV3;
110	} u;
111	} MY_WHV_ARM64_IC_PARAMETERS;
112	AssertCompileSize(MY_WHV_ARM64_IC_PARAMETERS, 64);
113
114
115	/**
116	* The hypercall exit context.
117	*/
118	typedef struct MY_WHV_HYPERCALL_CONTEXT
119	{
120	WHV_INTERCEPT_MESSAGE_HEADER Header;
121	uint16_t Immediate;
122	uint16_t u16Rsvd;
123	uint32_t u32Rsvd;
124	uint64_t X[18];
125	} MY_WHV_HYPERCALL_CONTEXT;
126	typedef MY_WHV_HYPERCALL_CONTEXT *PMY_WHV_HYPERCALL_CONTEXT;
127	AssertCompileSize(MY_WHV_HYPERCALL_CONTEXT, 24 + 19 * sizeof(uint64_t));
128
129
130	/**
131	* The ARM64 reset context.
132	*/
133	typedef struct MY_WHV_ARM64_RESET_CONTEXT
134	{
135	WHV_INTERCEPT_MESSAGE_HEADER Header;
136	uint32_t ResetType;
137	uint32_t u32Rsvd;
138	} MY_WHV_ARM64_RESET_CONTEXT;
139	typedef MY_WHV_ARM64_RESET_CONTEXT *PMY_WHV_ARM64_RESET_CONTEXT;
140	AssertCompileSize(MY_WHV_ARM64_RESET_CONTEXT, 24 + 2 * sizeof(uint32_t));
141
142
143	#define WHV_ARM64_RESET_CONTEXT_TYPE_POWER_OFF 0
144	#define WHV_ARM64_RESET_CONTEXT_TYPE_RESET 1
145
146
147	/**
148	* The exit reason context for arm64, the size is different
149	* from the default SDK we build against.
150	*/
151	typedef struct MY_WHV_RUN_VP_EXIT_CONTEXT
152	{
153	WHV_RUN_VP_EXIT_REASON ExitReason;
154	uint32_t u32Rsvd;
155	uint64_t u64Rsvd;
156	union
157	{
158	WHV_MEMORY_ACCESS_CONTEXT MemoryAccess;
159	WHV_RUN_VP_CANCELED_CONTEXT CancelReason;
160	MY_WHV_HYPERCALL_CONTEXT Hypercall;
161	WHV_UNRECOVERABLE_EXCEPTION_CONTEXT UnrecoverableException;
162	MY_WHV_ARM64_RESET_CONTEXT Arm64Reset;
163	uint64_t au64Rsvd2[32];
164	};
165	} MY_WHV_RUN_VP_EXIT_CONTEXT;
166	typedef MY_WHV_RUN_VP_EXIT_CONTEXT *PMY_WHV_RUN_VP_EXIT_CONTEXT;
167	AssertCompileSize(MY_WHV_RUN_VP_EXIT_CONTEXT, 272);
168
169	#define My_WHvArm64RegisterGicrBaseGpa ((WHV_REGISTER_NAME)UINT32_C(0x00063000))
170
171
172	/*********************************************************************************************************************************
173	* Defined Constants And Macros *
174	*********************************************************************************************************************************/
175
176
177	/*********************************************************************************************************************************
178	* Global Variables *
179	*********************************************************************************************************************************/
180	/** @name APIs imported from WinHvPlatform.dll
181	* @{ */
182	static decltype(WHvGetCapability) * g_pfnWHvGetCapability;
183	static decltype(WHvCreatePartition) * g_pfnWHvCreatePartition;
184	static decltype(WHvSetupPartition) * g_pfnWHvSetupPartition;
185	static decltype(WHvDeletePartition) * g_pfnWHvDeletePartition;
186	static decltype(WHvGetPartitionProperty) * g_pfnWHvGetPartitionProperty;
187	static decltype(WHvSetPartitionProperty) * g_pfnWHvSetPartitionProperty;
188	static decltype(WHvMapGpaRange) * g_pfnWHvMapGpaRange;
189	static decltype(WHvUnmapGpaRange) * g_pfnWHvUnmapGpaRange;
190	static decltype(WHvTranslateGva) * g_pfnWHvTranslateGva;
191	static decltype(WHvQueryGpaRangeDirtyBitmap) * g_pfnWHvQueryGpaRangeDirtyBitmap;
192	static decltype(WHvCreateVirtualProcessor) * g_pfnWHvCreateVirtualProcessor;
193	static decltype(WHvDeleteVirtualProcessor) * g_pfnWHvDeleteVirtualProcessor;
194	static decltype(WHvRunVirtualProcessor) * g_pfnWHvRunVirtualProcessor;
195	static decltype(WHvCancelRunVirtualProcessor) * g_pfnWHvCancelRunVirtualProcessor;
196	static decltype(WHvGetVirtualProcessorRegisters) * g_pfnWHvGetVirtualProcessorRegisters;
197	static decltype(WHvSetVirtualProcessorRegisters) * g_pfnWHvSetVirtualProcessorRegisters;
198	//static decltype(WHvGetVirtualProcessorState) * g_pfnWHvGetVirtualProcessorState;
199	decltype(WHvRequestInterrupt) * g_pfnWHvRequestInterrupt;
200	/** @} */
201
202	/** The Windows build number. */
203	static uint32_t g_uBuildNo = 17134;
204
205
206
207	/**
208	* Import instructions.
209	*/
210	static const struct
211	{
212	uint8_t idxDll; /*< 0 for WinHvPlatform.dll, 1 for vid.dll. /
213	bool fOptional; /*< Set if import is optional. /
214	PFNRT ppfn; /< The function pointer variable. /
215	const char pszName; /< The function name. /
216	} g_aImports[] =
217	{
218	#define NEM_WIN_IMPORT(a_idxDll, a_fOptional, a_Name) { (a_idxDll), (a_fOptional), (PFNRT *)&RT_CONCAT(g_pfn,a_Name), #a_Name }
219	NEM_WIN_IMPORT(0, false, WHvGetCapability),
220	NEM_WIN_IMPORT(0, false, WHvCreatePartition),
221	NEM_WIN_IMPORT(0, false, WHvSetupPartition),
222	NEM_WIN_IMPORT(0, false, WHvDeletePartition),
223	NEM_WIN_IMPORT(0, false, WHvGetPartitionProperty),
224	NEM_WIN_IMPORT(0, false, WHvSetPartitionProperty),
225	NEM_WIN_IMPORT(0, false, WHvMapGpaRange),
226	NEM_WIN_IMPORT(0, false, WHvUnmapGpaRange),
227	NEM_WIN_IMPORT(0, false, WHvTranslateGva),
228	NEM_WIN_IMPORT(0, true, WHvQueryGpaRangeDirtyBitmap),
229	NEM_WIN_IMPORT(0, false, WHvCreateVirtualProcessor),
230	NEM_WIN_IMPORT(0, false, WHvDeleteVirtualProcessor),
231	NEM_WIN_IMPORT(0, false, WHvRunVirtualProcessor),
232	NEM_WIN_IMPORT(0, false, WHvCancelRunVirtualProcessor),
233	NEM_WIN_IMPORT(0, false, WHvGetVirtualProcessorRegisters),
234	NEM_WIN_IMPORT(0, false, WHvSetVirtualProcessorRegisters),
235	// NEM_WIN_IMPORT(0, false, WHvGetVirtualProcessorState),
236	NEM_WIN_IMPORT(0, false, WHvRequestInterrupt),
237	#undef NEM_WIN_IMPORT
238	};
239
240
241	/*
242	* Let the preprocessor alias the APIs to import variables for better autocompletion.
243	*/
244	#ifndef IN_SLICKEDIT
245	# define WHvGetCapability g_pfnWHvGetCapability
246	# define WHvCreatePartition g_pfnWHvCreatePartition
247	# define WHvSetupPartition g_pfnWHvSetupPartition
248	# define WHvDeletePartition g_pfnWHvDeletePartition
249	# define WHvGetPartitionProperty g_pfnWHvGetPartitionProperty
250	# define WHvSetPartitionProperty g_pfnWHvSetPartitionProperty
251	# define WHvMapGpaRange g_pfnWHvMapGpaRange
252	# define WHvUnmapGpaRange g_pfnWHvUnmapGpaRange
253	# define WHvTranslateGva g_pfnWHvTranslateGva
254	# define WHvQueryGpaRangeDirtyBitmap g_pfnWHvQueryGpaRangeDirtyBitmap
255	# define WHvCreateVirtualProcessor g_pfnWHvCreateVirtualProcessor
256	# define WHvDeleteVirtualProcessor g_pfnWHvDeleteVirtualProcessor
257	# define WHvRunVirtualProcessor g_pfnWHvRunVirtualProcessor
258	# define WHvGetRunExitContextSize g_pfnWHvGetRunExitContextSize
259	# define WHvCancelRunVirtualProcessor g_pfnWHvCancelRunVirtualProcessor
260	# define WHvGetVirtualProcessorRegisters g_pfnWHvGetVirtualProcessorRegisters
261	# define WHvSetVirtualProcessorRegisters g_pfnWHvSetVirtualProcessorRegisters
262	//# define WHvGetVirtualProcessorState g_pfnWHvGetVirtualProcessorState
263	# define WHvRequestInterrupt g_pfnWHvRequestInterrupt
264
265	# define VidMessageSlotHandleAndGetNext g_pfnVidMessageSlotHandleAndGetNext
266	# define VidStartVirtualProcessor g_pfnVidStartVirtualProcessor
267	# define VidStopVirtualProcessor g_pfnVidStopVirtualProcessor
268
269	#endif
270
271	#if 0 /* unused */
272	/** WHV_MEMORY_ACCESS_TYPE names */
273	static const char * const g_apszWHvMemAccesstypes[4] = { "read", "write", "exec", "!undefined!" };
274	#endif
275	/** NEM_WIN_PAGE_STATE_XXX names. */
276	NEM_TMPL_STATIC const char * const g_apszPageStates[4] = { "not-set", "unmapped", "readable", "writable" };
277	#ifdef LOG_ENABLED
278	/** HV_INTERCEPT_ACCESS_TYPE names. */
279	static const char * const g_apszHvInterceptAccessTypes[4] = { "read", "write", "exec", "!undefined!" };
280	#endif
281
282
283	/*********************************************************************************************************************************
284	* Internal Functions *
285	*********************************************************************************************************************************/
286	DECLINLINE(int) nemR3NativeGCPhys2R3PtrReadOnly(PVM pVM, RTGCPHYS GCPhys, const void **ppv);
287	DECLINLINE(int) nemR3NativeGCPhys2R3PtrWriteable(PVM pVM, RTGCPHYS GCPhys, void **ppv);
288
289	NEM_TMPL_STATIC int nemHCNativeSetPhysPage(PVMCC pVM, PVMCPUCC pVCpu, RTGCPHYS GCPhysSrc, RTGCPHYS GCPhysDst,
290	uint32_t fPageProt, uint8_t *pu2State, bool fBackingChanged);
291
292	/**
293	* Worker for nemR3NativeInit that probes and load the native API.
294	*
295	* @returns VBox status code.
296	* @param fForced Whether the HMForced flag is set and we should
297	* fail if we cannot initialize.
298	* @param pErrInfo Where to always return error info.
299	*/
300	static int nemR3WinInitProbeAndLoad(bool fForced, PRTERRINFO pErrInfo)
301	{
302	/*
303	* Check that the DLL files we need are present, but without loading them.
304	* We'd like to avoid loading them unnecessarily.
305	*/
306	WCHAR wszPath[MAX_PATH + 64];
307	UINT cwcPath = GetSystemDirectoryW(wszPath, MAX_PATH);
308	if (cwcPath >= MAX_PATH \|\| cwcPath < 2)
309	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "GetSystemDirectoryW failed (%#x / %u)", cwcPath, GetLastError());
310
311	if (wszPath[cwcPath - 1] != '\\' \|\| wszPath[cwcPath - 1] != '/')
312	wszPath[cwcPath++] = '\\';
313	RTUtf16CopyAscii(&wszPath[cwcPath], RT_ELEMENTS(wszPath) - cwcPath, "WinHvPlatform.dll");
314	if (GetFileAttributesW(wszPath) == INVALID_FILE_ATTRIBUTES)
315	return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE, "The native API dll was not found (%ls)", wszPath);
316
317	/*
318	* Check that we're in a VM and that the hypervisor identifies itself as Hyper-V.
319	*/
320	/** @todo */
321
322	/** @todo would be great if we could recognize a root partition from the
323	* CPUID info, but I currently don't dare do that. */
324
325	/*
326	* Now try load the DLLs and resolve the APIs.
327	*/
328	static const char * const s_apszDllNames[1] = { "WinHvPlatform.dll" };
329	RTLDRMOD ahMods[1] = { NIL_RTLDRMOD };
330	int rc = VINF_SUCCESS;
331	for (unsigned i = 0; i < RT_ELEMENTS(s_apszDllNames); i++)
332	{
333	int rc2 = RTLdrLoadSystem(s_apszDllNames[i], true /fNoUnload/, &ahMods[i]);
334	if (RT_FAILURE(rc2))
335	{
336	if (!RTErrInfoIsSet(pErrInfo))
337	RTErrInfoSetF(pErrInfo, rc2, "Failed to load API DLL: %s: %Rrc", s_apszDllNames[i], rc2);
338	else
339	RTErrInfoAddF(pErrInfo, rc2, "; %s: %Rrc", s_apszDllNames[i], rc2);
340	ahMods[i] = NIL_RTLDRMOD;
341	rc = VERR_NEM_INIT_FAILED;
342	}
343	}
344	if (RT_SUCCESS(rc))
345	{
346	for (unsigned i = 0; i < RT_ELEMENTS(g_aImports); i++)
347	{
348	int rc2 = RTLdrGetSymbol(ahMods[g_aImports[i].idxDll], g_aImports[i].pszName, (void **)g_aImports[i].ppfn);
349	if (RT_SUCCESS(rc2))
350	{
351	if (g_aImports[i].fOptional)
352	LogRel(("NEM: info: Found optional import %s!%s.\n",
353	s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName));
354	}
355	else
356	{
357	*g_aImports[i].ppfn = NULL;
358
359	LogRel(("NEM: %s: Failed to import %s!%s: %Rrc",
360	g_aImports[i].fOptional ? "info" : fForced ? "fatal" : "error",
361	s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName, rc2));
362	if (!g_aImports[i].fOptional)
363	{
364	if (RTErrInfoIsSet(pErrInfo))
365	RTErrInfoAddF(pErrInfo, rc2, ", %s!%s",
366	s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName);
367	else
368	rc = RTErrInfoSetF(pErrInfo, rc2, "Failed to import: %s!%s",
369	s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName);
370	Assert(RT_FAILURE(rc));
371	}
372	}
373	}
374	if (RT_SUCCESS(rc))
375	{
376	Assert(!RTErrInfoIsSet(pErrInfo));
377	}
378	}
379
380	for (unsigned i = 0; i < RT_ELEMENTS(ahMods); i++)
381	RTLdrClose(ahMods[i]);
382	return rc;
383	}
384
385
386	/**
387	* Wrapper for different WHvGetCapability signatures.
388	*/
389	DECLINLINE(HRESULT) WHvGetCapabilityWrapper(WHV_CAPABILITY_CODE enmCap, WHV_CAPABILITY *pOutput, uint32_t cbOutput)
390	{
391	return g_pfnWHvGetCapability(enmCap, pOutput, cbOutput, NULL);
392	}
393
394
395	/**
396	* Worker for nemR3NativeInit that gets the hypervisor capabilities.
397	*
398	* @returns VBox status code.
399	* @param pVM The cross context VM structure.
400	* @param pErrInfo Where to always return error info.
401	*/
402	static int nemR3WinInitCheckCapabilities(PVM pVM, PRTERRINFO pErrInfo)
403	{
404	#define NEM_LOG_REL_CAP_EX(a_szField, a_szFmt, a_Value) LogRel(("NEM: %-38s= " a_szFmt "\n", a_szField, a_Value))
405	#define NEM_LOG_REL_CAP_SUB_EX(a_szField, a_szFmt, a_Value) LogRel(("NEM: %36s: " a_szFmt "\n", a_szField, a_Value))
406	#define NEM_LOG_REL_CAP_SUB(a_szField, a_Value) NEM_LOG_REL_CAP_SUB_EX(a_szField, "%d", a_Value)
407
408	/*
409	* Is the hypervisor present with the desired capability?
410	*
411	* In build 17083 this translates into:
412	* - CPUID[0x00000001].HVP is set
413	* - CPUID[0x40000000] == "Microsoft Hv"
414	* - CPUID[0x40000001].eax == "Hv#1"
415	* - CPUID[0x40000003].ebx[12] is set.
416	* - VidGetExoPartitionProperty(INVALID_HANDLE_VALUE, 0x60000, &Ignored) returns
417	* a non-zero value.
418	*/
419	/**
420	* @todo Someone at Microsoft please explain weird API design:
421	* 1. Pointless CapabilityCode duplication int the output;
422	* 2. No output size.
423	*/
424	WHV_CAPABILITY Caps;
425	RT_ZERO(Caps);
426	SetLastError(0);
427	HRESULT hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeHypervisorPresent, &Caps, sizeof(Caps));
428	DWORD rcWin = GetLastError();
429	if (FAILED(hrc))
430	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
431	"WHvGetCapability/WHvCapabilityCodeHypervisorPresent failed: %Rhrc (Last=%#x/%u)",
432	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
433	if (!Caps.HypervisorPresent)
434	{
435	if (!RTPathExists(RTPATH_NT_PASSTHRU_PREFIX "Device\\VidExo"))
436	return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE,
437	"WHvCapabilityCodeHypervisorPresent is FALSE! Make sure you have enabled the 'Windows Hypervisor Platform' feature.");
438	return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE, "WHvCapabilityCodeHypervisorPresent is FALSE! (%u)", rcWin);
439	}
440	LogRel(("NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...\n"));
441
442
443	/*
444	* Check what extended VM exits are supported.
445	*/
446	RT_ZERO(Caps);
447	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeExtendedVmExits, &Caps, sizeof(Caps));
448	if (FAILED(hrc))
449	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
450	"WHvGetCapability/WHvCapabilityCodeExtendedVmExits failed: %Rhrc (Last=%#x/%u)",
451	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
452	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeExtendedVmExits", "%'#018RX64", Caps.ExtendedVmExits.AsUINT64);
453	pVM->nem.s.fHypercallExit = RT_BOOL(Caps.ExtendedVmExits.HypercallExit);
454	pVM->nem.s.fGpaAccessFaultExit = RT_BOOL(Caps.ExtendedVmExits.GpaAccessFaultExit);
455	NEM_LOG_REL_CAP_SUB("fHypercallExit", pVM->nem.s.fHypercallExit);
456	NEM_LOG_REL_CAP_SUB("fGpaAccessFaultExit", pVM->nem.s.fGpaAccessFaultExit);
457	if (Caps.ExtendedVmExits.AsUINT64 & ~(uint64_t)7)
458	LogRel(("NEM: Warning! Unknown VM exit definitions: %#RX64\n", Caps.ExtendedVmExits.AsUINT64));
459	/** @todo RECHECK: WHV_EXTENDED_VM_EXITS typedef. */
460
461	/*
462	* Check features in case they end up defining any.
463	*/
464	RT_ZERO(Caps);
465	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeFeatures, &Caps, sizeof(Caps));
466	if (FAILED(hrc))
467	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
468	"WHvGetCapability/WHvCapabilityCodeFeatures failed: %Rhrc (Last=%#x/%u)",
469	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
470	if (Caps.Features.AsUINT64 & ~(uint64_t)0)
471	LogRel(("NEM: Warning! Unknown feature definitions: %#RX64\n", Caps.Features.AsUINT64));
472	/** @todo RECHECK: WHV_CAPABILITY_FEATURES typedef. */
473
474	/*
475	* Check that the CPU vendor is supported.
476	*/
477	RT_ZERO(Caps);
478	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorVendor, &Caps, sizeof(Caps));
479	if (FAILED(hrc))
480	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
481	"WHvGetCapability/WHvCapabilityCodeProcessorVendor failed: %Rhrc (Last=%#x/%u)",
482	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
483	switch (Caps.ProcessorVendor)
484	{
485	/** @todo RECHECK: WHV_PROCESSOR_VENDOR typedef. */
486	case WHvProcessorVendorArm:
487	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorVendor", "%d - ARM", Caps.ProcessorVendor);
488	pVM->nem.s.enmCpuVendor = CPUMCPUVENDOR_UNKNOWN;
489	break;
490	default:
491	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorVendor", "%d", Caps.ProcessorVendor);
492	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Unknown processor vendor: %d", Caps.ProcessorVendor);
493	}
494
495	/*
496	* CPU features, guessing these are virtual CPU features?
497	*/
498	RT_ZERO(Caps);
499	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorFeatures, &Caps, sizeof(Caps));
500	if (FAILED(hrc))
501	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
502	"WHvGetCapability/WHvCapabilityCodeProcessorFeatures failed: %Rhrc (Last=%#x/%u)",
503	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
504	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorFeatures", "%'#018RX64", Caps.ProcessorFeatures.AsUINT64);
505	#define NEM_LOG_REL_CPU_FEATURE(a_Field) NEM_LOG_REL_CAP_SUB(#a_Field, Caps.ProcessorFeatures.a_Field)
506	NEM_LOG_REL_CPU_FEATURE(Asid16);
507	NEM_LOG_REL_CPU_FEATURE(TGran16);
508	NEM_LOG_REL_CPU_FEATURE(TGran64);
509	NEM_LOG_REL_CPU_FEATURE(Haf);
510	NEM_LOG_REL_CPU_FEATURE(Hdbs);
511	NEM_LOG_REL_CPU_FEATURE(Pan);
512	NEM_LOG_REL_CPU_FEATURE(AtS1E1);
513	NEM_LOG_REL_CPU_FEATURE(Uao);
514	NEM_LOG_REL_CPU_FEATURE(El0Aarch32);
515	NEM_LOG_REL_CPU_FEATURE(Fp);
516	NEM_LOG_REL_CPU_FEATURE(FpHp);
517	NEM_LOG_REL_CPU_FEATURE(AdvSimd);
518	NEM_LOG_REL_CPU_FEATURE(AdvSimdHp);
519	NEM_LOG_REL_CPU_FEATURE(GicV3V4);
520	NEM_LOG_REL_CPU_FEATURE(GicV41);
521	NEM_LOG_REL_CPU_FEATURE(Ras);
522	NEM_LOG_REL_CPU_FEATURE(PmuV3);
523	NEM_LOG_REL_CPU_FEATURE(PmuV3ArmV81);
524	NEM_LOG_REL_CPU_FEATURE(PmuV3ArmV84);
525	NEM_LOG_REL_CPU_FEATURE(PmuV3ArmV85);
526	NEM_LOG_REL_CPU_FEATURE(Aes);
527	NEM_LOG_REL_CPU_FEATURE(PolyMul);
528	NEM_LOG_REL_CPU_FEATURE(Sha1);
529	NEM_LOG_REL_CPU_FEATURE(Sha256);
530	NEM_LOG_REL_CPU_FEATURE(Sha512);
531	NEM_LOG_REL_CPU_FEATURE(Crc32);
532	NEM_LOG_REL_CPU_FEATURE(Atomic);
533	NEM_LOG_REL_CPU_FEATURE(Rdm);
534	NEM_LOG_REL_CPU_FEATURE(Sha3);
535	NEM_LOG_REL_CPU_FEATURE(Sm3);
536	NEM_LOG_REL_CPU_FEATURE(Sm4);
537	NEM_LOG_REL_CPU_FEATURE(Dp);
538	NEM_LOG_REL_CPU_FEATURE(Fhm);
539	NEM_LOG_REL_CPU_FEATURE(DcCvap);
540	NEM_LOG_REL_CPU_FEATURE(DcCvadp);
541	NEM_LOG_REL_CPU_FEATURE(ApaBase);
542	NEM_LOG_REL_CPU_FEATURE(ApaEp);
543	NEM_LOG_REL_CPU_FEATURE(ApaEp2);
544	NEM_LOG_REL_CPU_FEATURE(ApaEp2Fp);
545	NEM_LOG_REL_CPU_FEATURE(ApaEp2Fpc);
546	NEM_LOG_REL_CPU_FEATURE(Jscvt);
547	NEM_LOG_REL_CPU_FEATURE(Fcma);
548	NEM_LOG_REL_CPU_FEATURE(RcpcV83);
549	NEM_LOG_REL_CPU_FEATURE(RcpcV84);
550	NEM_LOG_REL_CPU_FEATURE(Gpa);
551	NEM_LOG_REL_CPU_FEATURE(L1ipPipt);
552	NEM_LOG_REL_CPU_FEATURE(DzPermitted);
553
554	#undef NEM_LOG_REL_CPU_FEATURE
555	if (Caps.ProcessorFeatures.AsUINT64 & (~(RT_BIT_64(47) - 1)))
556	LogRel(("NEM: Warning! Unknown CPU features: %#RX64\n", Caps.ProcessorFeatures.AsUINT64));
557	pVM->nem.s.uCpuFeatures.u64 = Caps.ProcessorFeatures.AsUINT64;
558	/** @todo RECHECK: WHV_PROCESSOR_FEATURES typedef. */
559
560	/*
561	* The cache line flush size.
562	*/
563	RT_ZERO(Caps);
564	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorClFlushSize, &Caps, sizeof(Caps));
565	if (FAILED(hrc))
566	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
567	"WHvGetCapability/WHvCapabilityCodeProcessorClFlushSize failed: %Rhrc (Last=%#x/%u)",
568	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
569	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorClFlushSize", "2^%u", Caps.ProcessorClFlushSize);
570	if (Caps.ProcessorClFlushSize < 8 && Caps.ProcessorClFlushSize > 9)
571	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Unsupported cache line flush size: %u", Caps.ProcessorClFlushSize);
572	pVM->nem.s.cCacheLineFlushShift = Caps.ProcessorClFlushSize;
573
574	RT_ZERO(Caps);
575	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodePhysicalAddressWidth, &Caps, sizeof(Caps));
576	if (FAILED(hrc))
577	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
578	"WHvGetCapability/WHvCapabilityCodePhysicalAddressWidth failed: %Rhrc (Last=%#x/%u)",
579	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
580	NEM_LOG_REL_CAP_EX("WHvCapabilityCodePhysicalAddressWidth", "2^%u", Caps.PhysicalAddressWidth);
581	if (Caps.PhysicalAddressWidth < 32 && Caps.PhysicalAddressWidth > 52)
582	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Unsupported physical address width: %u", Caps.ProcessorClFlushSize);
583	pVM->nem.s.cPhysicalAddressWidth = Caps.PhysicalAddressWidth;
584
585
586	/*
587	* See if they've added more properties that we're not aware of.
588	*/
589	/** @todo RECHECK: WHV_CAPABILITY_CODE typedef. */
590	if (!IsDebuggerPresent()) /* Too noisy when in debugger, so skip. */
591	{
592	static const struct
593	{
594	uint32_t iMin, iMax; } s_aUnknowns[] =
595	{
596	{ 0x0004, 0x000f },
597	{ 0x1003, 0x100f },
598	{ 0x2000, 0x200f },
599	{ 0x3000, 0x300f },
600	{ 0x4000, 0x400f },
601	};
602	for (uint32_t j = 0; j < RT_ELEMENTS(s_aUnknowns); j++)
603	for (uint32_t i = s_aUnknowns[j].iMin; i <= s_aUnknowns[j].iMax; i++)
604	{
605	RT_ZERO(Caps);
606	hrc = WHvGetCapabilityWrapper((WHV_CAPABILITY_CODE)i, &Caps, sizeof(Caps));
607	if (SUCCEEDED(hrc))
608	LogRel(("NEM: Warning! Unknown capability %#x returning: %.*Rhxs\n", i, sizeof(Caps), &Caps));
609	}
610	}
611
612	/*
613	* For proper operation, we require CPUID exits.
614	*/
615	/** @todo Any? */
616
617	#undef NEM_LOG_REL_CAP_EX
618	#undef NEM_LOG_REL_CAP_SUB_EX
619	#undef NEM_LOG_REL_CAP_SUB
620	return VINF_SUCCESS;
621	}
622
623
624	/**
625	* Initializes the GIC controller emulation provided by Hyper-V.
626	*
627	* @returns VBox status code.
628	* @param pVM The cross context VM structure.
629	*
630	* @note Needs to be done early when setting up the partition so this has to live here and not in GICNem-win.cpp
631	*/
632	static int nemR3WinGicCreate(PVM pVM)
633	{
634	PCFGMNODE pGicCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "Devices/gic-nem/0/Config");
635	AssertPtrReturn(pGicCfg, VERR_NEM_IPE_5);
636
637	/*
638	* Query the MMIO ranges.
639	*/
640	RTGCPHYS GCPhysMmioBaseDist = 0;
641	int rc = CFGMR3QueryU64(pGicCfg, "DistributorMmioBase", &GCPhysMmioBaseDist);
642	if (RT_FAILURE(rc))
643	return VMSetError(pVM, rc, RT_SRC_POS,
644	"Configuration error: Failed to get the \"DistributorMmioBase\" value\n");
645
646	RTGCPHYS GCPhysMmioBaseReDist = 0;
647	rc = CFGMR3QueryU64(pGicCfg, "RedistributorMmioBase", &GCPhysMmioBaseReDist);
648	if (RT_FAILURE(rc))
649	return VMSetError(pVM, rc, RT_SRC_POS,
650	"Configuration error: Failed to get the \"RedistributorMmioBase\" value\n");
651
652	RTGCPHYS GCPhysMmioBaseIts = 0;
653	rc = CFGMR3QueryU64(pGicCfg, "ItsMmioBase", &GCPhysMmioBaseIts);
654	if (RT_FAILURE(rc))
655	return VMSetError(pVM, rc, RT_SRC_POS,
656	"Configuration error: Failed to get the \"ItsMmioBase\" value\n");
657
658	/*
659	* One can only set the GIC distributor base. The re-distributor regions for the individual
660	* vCPUs are configured when the vCPUs are created, so we need to save the base of the MMIO region.
661	*/
662	pVM->nem.s.GCPhysMmioBaseReDist = GCPhysMmioBaseReDist;
663
664	WHV_PARTITION_HANDLE hPartition = pVM->nem.s.hPartition;
665
666	MY_WHV_ARM64_IC_PARAMETERS Property; RT_ZERO(Property);
667	Property.u32EmulationMode = WHV_ARM64_IC_EMULATION_MODE_GICV3;
668	Property.u.GicV3.GCPhysGicdBase = GCPhysMmioBaseDist;
669	Property.u.GicV3.GCPhysGitsTranslaterBase = GCPhysMmioBaseIts;
670	Property.u.GicV3.cLpiIntIdBits = 1; /** @todo LPIs are currently not supported with our device emulations. */
671	Property.u.GicV3.u32PpiCntvOverflw = pVM->nem.s.u32GicPpiVTimer + 16; /* Calculate the absolute timer INTID. */
672	Property.u.GicV3.u32PpiPmu = 23; /** @todo Configure dynamically (from SBSA, needs a PMU/NEM emulation just like with the GIC probably). */
673	HRESULT hrc = WHvSetPartitionProperty(hPartition, (WHV_PARTITION_PROPERTY_CODE)WHV_PARTITION_PROPERTY_CODE_ARM64_IC_PARAMETERS, &Property, sizeof(Property));
674	if (FAILED(hrc))
675	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
676	"Failed to set WHvPartitionPropertyCodeArm64IcParameters: %Rhrc (Last=%#x/%u)",
677	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
678
679	return rc;
680	}
681
682
683	/**
684	* Creates and sets up a Hyper-V (exo) partition.
685	*
686	* @returns VBox status code.
687	* @param pVM The cross context VM structure.
688	* @param pErrInfo Where to always return error info.
689	*/
690	static int nemR3WinInitCreatePartition(PVM pVM, PRTERRINFO pErrInfo)
691	{
692	AssertReturn(!pVM->nem.s.hPartition, RTErrInfoSet(pErrInfo, VERR_WRONG_ORDER, "Wrong initalization order"));
693	AssertReturn(!pVM->nem.s.hPartitionDevice, RTErrInfoSet(pErrInfo, VERR_WRONG_ORDER, "Wrong initalization order"));
694
695	/*
696	* Create the partition.
697	*/
698	WHV_PARTITION_HANDLE hPartition;
699	HRESULT hrc = WHvCreatePartition(&hPartition);
700	if (FAILED(hrc))
701	return RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED, "WHvCreatePartition failed with %Rhrc (Last=%#x/%u)",
702	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
703
704	int rc;
705
706	/*
707	* Set partition properties, most importantly the CPU count.
708	*/
709	/**
710	* @todo Someone at Microsoft please explain another weird API:
711	* - Why this API doesn't take the WHV_PARTITION_PROPERTY_CODE value as an
712	* argument rather than as part of the struct. That is so weird if you've
713	* used any other NT or windows API, including WHvGetCapability().
714	* - Why use PVOID when WHV_PARTITION_PROPERTY is what's expected. We
715	* technically only need 9 bytes for setting/getting
716	* WHVPartitionPropertyCodeProcessorClFlushSize, but the API insists on 16. */
717	WHV_PARTITION_PROPERTY Property;
718	RT_ZERO(Property);
719	Property.ProcessorCount = pVM->cCpus;
720	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorCount, &Property, sizeof(Property));
721	if (SUCCEEDED(hrc))
722	{
723	RT_ZERO(Property);
724	Property.ExtendedVmExits.HypercallExit = pVM->nem.s.fHypercallExit;
725	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeExtendedVmExits, &Property, sizeof(Property));
726	if (SUCCEEDED(hrc))
727	{
728	/*
729	* We'll continue setup in nemR3NativeInitAfterCPUM.
730	*/
731	pVM->nem.s.fCreatedEmts = false;
732	pVM->nem.s.hPartition = hPartition;
733	LogRel(("NEM: Created partition %p.\n", hPartition));
734	return VINF_SUCCESS;
735	}
736
737	rc = RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED,
738	"Failed setting WHvPartitionPropertyCodeExtendedVmExits to %'#RX64: %Rhrc",
739	Property.ExtendedVmExits.AsUINT64, hrc);
740	}
741	else
742	rc = RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED,
743	"Failed setting WHvPartitionPropertyCodeProcessorCount to %u: %Rhrc (Last=%#x/%u)",
744	pVM->cCpus, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
745	WHvDeletePartition(hPartition);
746
747	Assert(!pVM->nem.s.hPartitionDevice);
748	Assert(!pVM->nem.s.hPartition);
749	return rc;
750	}
751
752
753	static int nemR3NativeInitSetupVm(PVM pVM)
754	{
755	WHV_PARTITION_HANDLE hPartition = pVM->nem.s.hPartition;
756	AssertReturn(hPartition != NULL, VERR_WRONG_ORDER);
757	AssertReturn(!pVM->nem.s.hPartitionDevice, VERR_WRONG_ORDER);
758	AssertReturn(!pVM->nem.s.fCreatedEmts, VERR_WRONG_ORDER);
759
760	/*
761	* Continue setting up the partition now that we've got most of the CPUID feature stuff.
762	*/
763	WHV_PARTITION_PROPERTY Property;
764	HRESULT hrc;
765
766	/* Not sure if we really need to set the cache line flush size. */
767	RT_ZERO(Property);
768	Property.ProcessorClFlushSize = pVM->nem.s.cCacheLineFlushShift;
769	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorClFlushSize, &Property, sizeof(Property));
770	if (FAILED(hrc))
771	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
772	"Failed to set WHvPartitionPropertyCodeProcessorClFlushSize to %u: %Rhrc (Last=%#x/%u)",
773	pVM->nem.s.cCacheLineFlushShift, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
774
775	/*
776	* Sync CPU features with CPUM.
777	*/
778	/** @todo sync CPU features with CPUM. */
779
780	/* Set the partition property. */
781	RT_ZERO(Property);
782	Property.ProcessorFeatures.AsUINT64 = pVM->nem.s.uCpuFeatures.u64;
783	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorFeatures, &Property, sizeof(Property));
784	if (FAILED(hrc))
785	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
786	"Failed to set WHvPartitionPropertyCodeProcessorFeatures to %'#RX64: %Rhrc (Last=%#x/%u)",
787	pVM->nem.s.uCpuFeatures.u64, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
788
789	/* Configure the GIC. */
790	int rc = nemR3WinGicCreate(pVM);
791	if (RT_FAILURE(rc))
792	return rc;
793
794	/*
795	* Set up the partition.
796	*
797	* Seems like this is where the partition is actually instantiated and we get
798	* a handle to it.
799	*/
800	hrc = WHvSetupPartition(hPartition);
801	if (FAILED(hrc))
802	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
803	"Call to WHvSetupPartition failed: %Rhrc (Last=%#x/%u)",
804	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
805
806	/*
807	* Setup the EMTs.
808	*/
809	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
810	{
811	hrc = WHvCreateVirtualProcessor(hPartition, idCpu, 0 /fFlags/);
812	if (FAILED(hrc))
813	{
814	NTSTATUS const rcNtLast = RTNtLastStatusValue();
815	DWORD const dwErrLast = RTNtLastErrorValue();
816	while (idCpu-- > 0)
817	{
818	HRESULT hrc2 = WHvDeleteVirtualProcessor(hPartition, idCpu);
819	AssertLogRelMsg(SUCCEEDED(hrc2), ("WHvDeleteVirtualProcessor(%p, %u) -> %Rhrc (Last=%#x/%u)\n",
820	hPartition, idCpu, hrc2, RTNtLastStatusValue(),
821	RTNtLastErrorValue()));
822	}
823	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
824	"Call to WHvCreateVirtualProcessor failed: %Rhrc (Last=%#x/%u)", hrc, rcNtLast, dwErrLast);
825	}
826
827	if (idCpu == 0)
828	{
829	/*
830	* Need to query the ID registers and populate CPUM,
831	* these are partition wide registers and need to be queried/set with WHV_ANY_VP.
832	*/
833	CPUMARMV8IDREGS IdRegs; RT_ZERO(IdRegs);
834
835	WHV_REGISTER_NAME aenmNames[10];
836	WHV_REGISTER_VALUE aValues[10];
837	RT_ZERO(aValues);
838
839	aenmNames[0] = WHvArm64RegisterIdAa64Dfr0El1;
840	aenmNames[1] = WHvArm64RegisterIdAa64Dfr1El1;
841	aenmNames[2] = WHvArm64RegisterIdAa64Isar0El1;
842	aenmNames[3] = WHvArm64RegisterIdAa64Isar1El1;
843	aenmNames[4] = WHvArm64RegisterIdAa64Isar2El1;
844	aenmNames[5] = WHvArm64RegisterIdAa64Mmfr0El1;
845	aenmNames[6] = WHvArm64RegisterIdAa64Mmfr1El1;
846	aenmNames[7] = WHvArm64RegisterIdAa64Mmfr2El1;
847	aenmNames[8] = WHvArm64RegisterIdAa64Pfr0El1;
848	aenmNames[9] = WHvArm64RegisterIdAa64Pfr1El1;
849
850	hrc = WHvGetVirtualProcessorRegisters(hPartition, WHV_ANY_VP /idCpu/, aenmNames, RT_ELEMENTS(aenmNames), aValues);
851	AssertLogRelMsgReturn(SUCCEEDED(hrc),
852	("WHvGetVirtualProcessorRegisters(%p, %u,,%u,) -> %Rhrc (Last=%#x/%u)\n",
853	hPartition, WHV_ANY_VP, RT_ELEMENTS(aenmNames), hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
854	, VERR_NEM_GET_REGISTERS_FAILED);
855
856	IdRegs.u64RegIdAa64Pfr0El1 = aValues[8].Reg64;
857	IdRegs.u64RegIdAa64Pfr1El1 = aValues[9].Reg64;
858	IdRegs.u64RegIdAa64Dfr0El1 = aValues[0].Reg64;
859	IdRegs.u64RegIdAa64Dfr1El1 = aValues[1].Reg64;
860	IdRegs.u64RegIdAa64Isar0El1 = aValues[2].Reg64;
861	IdRegs.u64RegIdAa64Isar1El1 = aValues[3].Reg64;
862	IdRegs.u64RegIdAa64Isar2El1 = aValues[4].Reg64;
863	IdRegs.u64RegIdAa64Mmfr0El1 = aValues[5].Reg64;
864	IdRegs.u64RegIdAa64Mmfr1El1 = aValues[6].Reg64;
865	IdRegs.u64RegIdAa64Mmfr2El1 = aValues[7].Reg64;
866
867	rc = CPUMR3PopulateFeaturesByIdRegisters(pVM, &IdRegs);
868	if (RT_FAILURE(rc))
869	return rc;
870
871	/* Apply any overrides to the partition. */
872	PCCPUMARMV8IDREGS pIdRegsGst = NULL;
873	rc = CPUMR3QueryGuestIdRegs(pVM, &pIdRegsGst);
874	AssertRCReturn(rc, rc);
875
876	aValues[0].Reg64 = pIdRegsGst->u64RegIdAa64Dfr0El1;
877	aValues[1].Reg64 = pIdRegsGst->u64RegIdAa64Dfr1El1;
878	aValues[2].Reg64 = pIdRegsGst->u64RegIdAa64Isar0El1;
879	aValues[3].Reg64 = pIdRegsGst->u64RegIdAa64Isar1El1;
880	aValues[4].Reg64 = pIdRegsGst->u64RegIdAa64Isar2El1;
881	aValues[5].Reg64 = pIdRegsGst->u64RegIdAa64Mmfr0El1;
882	aValues[6].Reg64 = pIdRegsGst->u64RegIdAa64Mmfr1El1;
883	aValues[7].Reg64 = pIdRegsGst->u64RegIdAa64Mmfr2El1;
884	aValues[8].Reg64 = pIdRegsGst->u64RegIdAa64Pfr0El1;
885	aValues[9].Reg64 = pIdRegsGst->u64RegIdAa64Pfr1El1;
886
887	hrc = WHvSetVirtualProcessorRegisters(hPartition, WHV_ANY_VP /idCpu/, aenmNames, RT_ELEMENTS(aenmNames), aValues);
888	AssertLogRelMsgReturn(SUCCEEDED(hrc),
889	("WHvGetVirtualProcessorRegisters(%p, %u,,%u,) -> %Rhrc (Last=%#x/%u)\n",
890	hPartition, WHV_ANY_VP, RT_ELEMENTS(aenmNames), hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
891	, VERR_NEM_SET_REGISTERS_FAILED);
892
893	/* Save the amount of break-/watchpoints supported for syncing the guest register state later. */
894	pVM->nem.s.cBreakpoints = RT_BF_GET(pIdRegsGst->u64RegIdAa64Dfr0El1, ARMV8_ID_AA64DFR0_EL1_BRPS) + 1;
895	pVM->nem.s.cWatchpoints = RT_BF_GET(pIdRegsGst->u64RegIdAa64Dfr0El1, ARMV8_ID_AA64DFR0_EL1_WRPS) + 1;
896	}
897
898	/* Configure the GIC re-distributor region for the GIC. */
899	WHV_REGISTER_NAME enmName = My_WHvArm64RegisterGicrBaseGpa;
900	WHV_REGISTER_VALUE Value;
901	Value.Reg64 = pVM->nem.s.GCPhysMmioBaseReDist + idCpu * _128K;
902
903	hrc = WHvSetVirtualProcessorRegisters(hPartition, idCpu, &enmName, 1, &Value);
904	AssertLogRelMsgReturn(SUCCEEDED(hrc),
905	("WHvSetVirtualProcessorRegisters(%p, %u, WHvArm64RegisterGicrBaseGpa,) -> %Rhrc (Last=%#x/%u)\n",
906	hPartition, idCpu, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
907	, VERR_NEM_SET_REGISTERS_FAILED);
908	}
909
910	pVM->nem.s.fCreatedEmts = true;
911
912	LogRel(("NEM: Successfully set up partition\n"));
913	return VINF_SUCCESS;
914	}
915
916
917	/**
918	* Try initialize the native API.
919	*
920	* This may only do part of the job, more can be done in
921	* nemR3NativeInitAfterCPUM() and nemR3NativeInitCompleted().
922	*
923	* @returns VBox status code.
924	* @param pVM The cross context VM structure.
925	* @param fFallback Whether we're in fallback mode or use-NEM mode. In
926	* the latter we'll fail if we cannot initialize.
927	* @param fForced Whether the HMForced flag is set and we should
928	* fail if we cannot initialize.
929	*/
930	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced)
931	{
932	g_uBuildNo = RTSystemGetNtBuildNo();
933
934	/*
935	* Error state.
936	* The error message will be non-empty on failure and 'rc' will be set too.
937	*/
938	RTERRINFOSTATIC ErrInfo;
939	PRTERRINFO pErrInfo = RTErrInfoInitStatic(&ErrInfo);
940	int rc = nemR3WinInitProbeAndLoad(fForced, pErrInfo);
941	if (RT_SUCCESS(rc))
942	{
943	/*
944	* Check the capabilties of the hypervisor, starting with whether it's present.
945	*/
946	rc = nemR3WinInitCheckCapabilities(pVM, pErrInfo);
947	if (RT_SUCCESS(rc))
948	{
949	/*
950	* Create and initialize a partition.
951	*/
952	rc = nemR3WinInitCreatePartition(pVM, pErrInfo);
953	if (RT_SUCCESS(rc))
954	{
955	rc = nemR3NativeInitSetupVm(pVM);
956	if (RT_SUCCESS(rc))
957	{
958	/*
959	* Set ourselves as the execution engine and make config adjustments.
960	*/
961	VM_SET_MAIN_EXECUTION_ENGINE(pVM, VM_EXEC_ENGINE_NATIVE_API);
962	Log(("NEM: Marked active!\n"));
963	PGMR3EnableNemMode(pVM);
964
965	/*
966	* Register release statistics
967	*/
968	STAMR3Register(pVM, (void *)&pVM->nem.s.cMappedPages, STAMTYPE_U32, STAMVISIBILITY_ALWAYS,
969	"/NEM/PagesCurrentlyMapped", STAMUNIT_PAGES, "Number guest pages currently mapped by the VM");
970	STAMR3Register(pVM, (void *)&pVM->nem.s.StatMapPage, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
971	"/NEM/PagesMapCalls", STAMUNIT_PAGES, "Calls to WHvMapGpaRange/HvCallMapGpaPages");
972	STAMR3Register(pVM, (void *)&pVM->nem.s.StatMapPageFailed, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
973	"/NEM/PagesMapFails", STAMUNIT_PAGES, "Calls to WHvMapGpaRange/HvCallMapGpaPages that failed");
974	STAMR3Register(pVM, (void *)&pVM->nem.s.StatUnmapPage, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
975	"/NEM/PagesUnmapCalls", STAMUNIT_PAGES, "Calls to WHvUnmapGpaRange/HvCallUnmapGpaPages");
976	STAMR3Register(pVM, (void *)&pVM->nem.s.StatUnmapPageFailed, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
977	"/NEM/PagesUnmapFails", STAMUNIT_PAGES, "Calls to WHvUnmapGpaRange/HvCallUnmapGpaPages that failed");
978	STAMR3Register(pVM, &pVM->nem.s.StatProfMapGpaRange, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
979	"/NEM/PagesMapGpaRange", STAMUNIT_TICKS_PER_CALL, "Profiling calls to WHvMapGpaRange for bigger stuff");
980	STAMR3Register(pVM, &pVM->nem.s.StatProfUnmapGpaRange, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
981	"/NEM/PagesUnmapGpaRange", STAMUNIT_TICKS_PER_CALL, "Profiling calls to WHvUnmapGpaRange for bigger stuff");
982	STAMR3Register(pVM, &pVM->nem.s.StatProfMapGpaRangePage, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
983	"/NEM/PagesMapGpaRangePage", STAMUNIT_TICKS_PER_CALL, "Profiling calls to WHvMapGpaRange for single pages");
984	STAMR3Register(pVM, &pVM->nem.s.StatProfUnmapGpaRangePage, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
985	"/NEM/PagesUnmapGpaRangePage", STAMUNIT_TICKS_PER_CALL, "Profiling calls to WHvUnmapGpaRange for single pages");
986
987	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
988	{
989	PNEMCPU pNemCpu = &pVM->apCpusR3[idCpu]->nem.s;
990	STAMR3RegisterF(pVM, &pNemCpu->StatExitPortIo, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of port I/O exits", "/NEM/CPU%u/ExitPortIo", idCpu);
991	STAMR3RegisterF(pVM, &pNemCpu->StatExitMemUnmapped, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of unmapped memory exits", "/NEM/CPU%u/ExitMemUnmapped", idCpu);
992	STAMR3RegisterF(pVM, &pNemCpu->StatExitMemIntercept, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of intercepted memory exits", "/NEM/CPU%u/ExitMemIntercept", idCpu);
993	STAMR3RegisterF(pVM, &pNemCpu->StatExitHalt, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of HLT exits", "/NEM/CPU%u/ExitHalt", idCpu);
994	STAMR3RegisterF(pVM, &pNemCpu->StatExitInterruptWindow, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of interrupt window exits", "/NEM/CPU%u/ExitInterruptWindow", idCpu);
995	STAMR3RegisterF(pVM, &pNemCpu->StatExitCpuId, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of CPUID exits", "/NEM/CPU%u/ExitCpuId", idCpu);
996	STAMR3RegisterF(pVM, &pNemCpu->StatExitMsr, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of MSR access exits", "/NEM/CPU%u/ExitMsr", idCpu);
997	STAMR3RegisterF(pVM, &pNemCpu->StatExitException, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of exception exits", "/NEM/CPU%u/ExitException", idCpu);
998	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionBp, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #BP exits", "/NEM/CPU%u/ExitExceptionBp", idCpu);
999	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionDb, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #DB exits", "/NEM/CPU%u/ExitExceptionDb", idCpu);
1000	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionGp, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #GP exits", "/NEM/CPU%u/ExitExceptionGp", idCpu);
1001	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionGpMesa, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #GP exits from mesa driver", "/NEM/CPU%u/ExitExceptionGpMesa", idCpu);
1002	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionUd, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #UD exits", "/NEM/CPU%u/ExitExceptionUd", idCpu);
1003	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionUdHandled, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of handled #UD exits", "/NEM/CPU%u/ExitExceptionUdHandled", idCpu);
1004	STAMR3RegisterF(pVM, &pNemCpu->StatExitUnrecoverable, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of unrecoverable exits", "/NEM/CPU%u/ExitUnrecoverable", idCpu);
1005	STAMR3RegisterF(pVM, &pNemCpu->StatGetMsgTimeout, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of get message timeouts/alerts", "/NEM/CPU%u/GetMsgTimeout", idCpu);
1006	STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuSuccess, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of successful CPU stops", "/NEM/CPU%u/StopCpuSuccess", idCpu);
1007	STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPending, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pending CPU stops", "/NEM/CPU%u/StopCpuPending", idCpu);
1008	STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPendingAlerts,STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pending CPU stop alerts", "/NEM/CPU%u/StopCpuPendingAlerts", idCpu);
1009	STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPendingOdd, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of odd pending CPU stops (see code)", "/NEM/CPU%u/StopCpuPendingOdd", idCpu);
1010	STAMR3RegisterF(pVM, &pNemCpu->StatCancelChangedState, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel changed state", "/NEM/CPU%u/CancelChangedState", idCpu);
1011	STAMR3RegisterF(pVM, &pNemCpu->StatCancelAlertedThread, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel alerted EMT", "/NEM/CPU%u/CancelAlertedEMT", idCpu);
1012	STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnFFPre, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pre execution FF breaks", "/NEM/CPU%u/BreakOnFFPre", idCpu);
1013	STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnFFPost, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of post execution FF breaks", "/NEM/CPU%u/BreakOnFFPost", idCpu);
1014	STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnCancel, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel execution breaks", "/NEM/CPU%u/BreakOnCancel", idCpu);
1015	STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnStatus, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of status code breaks", "/NEM/CPU%u/BreakOnStatus", idCpu);
1016	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnDemand, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of on-demand state imports", "/NEM/CPU%u/ImportOnDemand", idCpu);
1017	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnReturn, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of state imports on loop return", "/NEM/CPU%u/ImportOnReturn", idCpu);
1018	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnReturnSkipped, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of skipped state imports on loop return", "/NEM/CPU%u/ImportOnReturnSkipped", idCpu);
1019	STAMR3RegisterF(pVM, &pNemCpu->StatQueryCpuTick, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of TSC queries", "/NEM/CPU%u/QueryCpuTick", idCpu);
1020	}
1021
1022	#if defined(VBOX_WITH_R0_MODULES) && !defined(VBOX_WITH_MINIMAL_R0)
1023	if (!SUPR3IsDriverless())
1024	{
1025	PUVM pUVM = pVM->pUVM;
1026	STAMR3RegisterRefresh(pUVM, &pVM->nem.s.R0Stats.cPagesAvailable, STAMTYPE_U64, STAMVISIBILITY_ALWAYS,
1027	STAMUNIT_PAGES, STAM_REFRESH_GRP_NEM, "Free pages available to the hypervisor",
1028	"/NEM/R0Stats/cPagesAvailable");
1029	STAMR3RegisterRefresh(pUVM, &pVM->nem.s.R0Stats.cPagesInUse, STAMTYPE_U64, STAMVISIBILITY_ALWAYS,
1030	STAMUNIT_PAGES, STAM_REFRESH_GRP_NEM, "Pages in use by hypervisor",
1031	"/NEM/R0Stats/cPagesInUse");
1032	}
1033	#endif /* VBOX_WITH_R0_MODULES && !VBOX_WITH_MINIMAL_R0 */
1034	}
1035	}
1036	}
1037	}
1038
1039	/*
1040	* We only fail if in forced mode, otherwise just log the complaint and return.
1041	*/
1042	Assert(pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API \|\| RTErrInfoIsSet(pErrInfo));
1043	if ( (fForced \|\| !fFallback)
1044	&& pVM->bMainExecutionEngine != VM_EXEC_ENGINE_NATIVE_API)
1045	return VMSetError(pVM, RT_SUCCESS_NP(rc) ? VERR_NEM_NOT_AVAILABLE : rc, RT_SRC_POS, "%s", pErrInfo->pszMsg);
1046
1047	if (RTErrInfoIsSet(pErrInfo))
1048	LogRel(("NEM: Not available: %s\n", pErrInfo->pszMsg));
1049	return VINF_SUCCESS;
1050	}
1051
1052
1053	/**
1054	* This is called after CPUMR3Init is done.
1055	*
1056	* @returns VBox status code.
1057	* @param pVM The VM handle..
1058	*/
1059	int nemR3NativeInitAfterCPUM(PVM pVM)
1060	{
1061	/*
1062	* Validate sanity.
1063	*/
1064	AssertReturn(pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API, VERR_WRONG_ORDER);
1065
1066	/** @todo */
1067
1068	/*
1069	* Any hyper-v statistics we can get at now? HvCallMapStatsPage isn't accessible any more.
1070	*/
1071	/** @todo stats */
1072
1073	/*
1074	* Adjust features.
1075	*
1076	* Note! We've already disabled X2APIC and MONITOR/MWAIT via CFGM during
1077	* the first init call.
1078	*/
1079
1080	return VINF_SUCCESS;
1081	}
1082
1083
1084	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
1085	{
1086	//BOOL fRet = SetThreadPriority(GetCurrentThread(), 0);
1087	//AssertLogRel(fRet);
1088
1089	NOREF(pVM); NOREF(enmWhat);
1090	return VINF_SUCCESS;
1091	}
1092
1093
1094	int nemR3NativeTerm(PVM pVM)
1095	{
1096	/*
1097	* Delete the partition.
1098	*/
1099	WHV_PARTITION_HANDLE hPartition = pVM->nem.s.hPartition;
1100	pVM->nem.s.hPartition = NULL;
1101	pVM->nem.s.hPartitionDevice = NULL;
1102	if (hPartition != NULL)
1103	{
1104	VMCPUID idCpu = pVM->nem.s.fCreatedEmts ? pVM->cCpus : 0;
1105	LogRel(("NEM: Destroying partition %p with its %u VCpus...\n", hPartition, idCpu));
1106	while (idCpu-- > 0)
1107	{
1108	HRESULT hrc = WHvDeleteVirtualProcessor(hPartition, idCpu);
1109	AssertLogRelMsg(SUCCEEDED(hrc), ("WHvDeleteVirtualProcessor(%p, %u) -> %Rhrc (Last=%#x/%u)\n",
1110	hPartition, idCpu, hrc, RTNtLastStatusValue(),
1111	RTNtLastErrorValue()));
1112	}
1113	WHvDeletePartition(hPartition);
1114	}
1115	pVM->nem.s.fCreatedEmts = false;
1116	return VINF_SUCCESS;
1117	}
1118
1119
1120	/**
1121	* VM reset notification.
1122	*
1123	* @param pVM The cross context VM structure.
1124	*/
1125	void nemR3NativeReset(PVM pVM)
1126	{
1127	RT_NOREF(pVM);
1128	}
1129
1130
1131	/**
1132	* Reset CPU due to INIT IPI or hot (un)plugging.
1133	*
1134	* @param pVCpu The cross context virtual CPU structure of the CPU being
1135	* reset.
1136	* @param fInitIpi Whether this is the INIT IPI or hot (un)plugging case.
1137	*/
1138	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi)
1139	{
1140	RT_NOREF(pVCpu, fInitIpi);
1141	}
1142
1143
1144	NEM_TMPL_STATIC int nemHCWinCopyStateToHyperV(PVMCC pVM, PVMCPUCC pVCpu)
1145	{
1146	WHV_REGISTER_NAME aenmNames[128];
1147	WHV_REGISTER_VALUE aValues[128];
1148
1149	uint64_t const fWhat = ~pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_ALL;
1150	if (!fWhat)
1151	return VINF_SUCCESS;
1152	uintptr_t iReg = 0;
1153
1154	#define ADD_REG64(a_enmName, a_uValue) do { \
1155	aenmNames[iReg] = (a_enmName); \
1156	aValues[iReg].Reg128.High64 = 0; \
1157	aValues[iReg].Reg64 = (a_uValue).x; \
1158	iReg++; \
1159	} while (0)
1160	#define ADD_REG64_RAW(a_enmName, a_uValue) do { \
1161	aenmNames[iReg] = (a_enmName); \
1162	aValues[iReg].Reg128.High64 = 0; \
1163	aValues[iReg].Reg64 = (a_uValue); \
1164	iReg++; \
1165	} while (0)
1166	#define ADD_SYSREG64(a_enmName, a_uValue) do { \
1167	aenmNames[iReg] = (a_enmName); \
1168	aValues[iReg].Reg128.High64 = 0; \
1169	aValues[iReg].Reg64 = (a_uValue).u64; \
1170	iReg++; \
1171	} while (0)
1172	#define ADD_REG128(a_enmName, a_uValue) do { \
1173	aenmNames[iReg] = (a_enmName); \
1174	aValues[iReg].Reg128.Low64 = (a_uValue).au64[0]; \
1175	aValues[iReg].Reg128.High64 = (a_uValue).au64[1]; \
1176	iReg++; \
1177	} while (0)
1178
1179	/* GPRs */
1180	if (fWhat & CPUMCTX_EXTRN_GPRS_MASK)
1181	{
1182	if (fWhat & CPUMCTX_EXTRN_X0)
1183	ADD_REG64(WHvArm64RegisterX0, pVCpu->cpum.GstCtx.aGRegs[0]);
1184	if (fWhat & CPUMCTX_EXTRN_X1)
1185	ADD_REG64(WHvArm64RegisterX1, pVCpu->cpum.GstCtx.aGRegs[1]);
1186	if (fWhat & CPUMCTX_EXTRN_X2)
1187	ADD_REG64(WHvArm64RegisterX2, pVCpu->cpum.GstCtx.aGRegs[2]);
1188	if (fWhat & CPUMCTX_EXTRN_X3)
1189	ADD_REG64(WHvArm64RegisterX3, pVCpu->cpum.GstCtx.aGRegs[3]);
1190	if (fWhat & CPUMCTX_EXTRN_X4_X28)
1191	{
1192	ADD_REG64(WHvArm64RegisterX4, pVCpu->cpum.GstCtx.aGRegs[4]);
1193	ADD_REG64(WHvArm64RegisterX5, pVCpu->cpum.GstCtx.aGRegs[5]);
1194	ADD_REG64(WHvArm64RegisterX6, pVCpu->cpum.GstCtx.aGRegs[6]);
1195	ADD_REG64(WHvArm64RegisterX7, pVCpu->cpum.GstCtx.aGRegs[7]);
1196	ADD_REG64(WHvArm64RegisterX8, pVCpu->cpum.GstCtx.aGRegs[8]);
1197	ADD_REG64(WHvArm64RegisterX9, pVCpu->cpum.GstCtx.aGRegs[9]);
1198	ADD_REG64(WHvArm64RegisterX10, pVCpu->cpum.GstCtx.aGRegs[10]);
1199	ADD_REG64(WHvArm64RegisterX11, pVCpu->cpum.GstCtx.aGRegs[11]);
1200	ADD_REG64(WHvArm64RegisterX12, pVCpu->cpum.GstCtx.aGRegs[12]);
1201	ADD_REG64(WHvArm64RegisterX13, pVCpu->cpum.GstCtx.aGRegs[13]);
1202	ADD_REG64(WHvArm64RegisterX14, pVCpu->cpum.GstCtx.aGRegs[14]);
1203	ADD_REG64(WHvArm64RegisterX15, pVCpu->cpum.GstCtx.aGRegs[15]);
1204	ADD_REG64(WHvArm64RegisterX16, pVCpu->cpum.GstCtx.aGRegs[16]);
1205	ADD_REG64(WHvArm64RegisterX17, pVCpu->cpum.GstCtx.aGRegs[17]);
1206	ADD_REG64(WHvArm64RegisterX18, pVCpu->cpum.GstCtx.aGRegs[18]);
1207	ADD_REG64(WHvArm64RegisterX19, pVCpu->cpum.GstCtx.aGRegs[19]);
1208	ADD_REG64(WHvArm64RegisterX20, pVCpu->cpum.GstCtx.aGRegs[20]);
1209	ADD_REG64(WHvArm64RegisterX21, pVCpu->cpum.GstCtx.aGRegs[21]);
1210	ADD_REG64(WHvArm64RegisterX22, pVCpu->cpum.GstCtx.aGRegs[22]);
1211	ADD_REG64(WHvArm64RegisterX23, pVCpu->cpum.GstCtx.aGRegs[23]);
1212	ADD_REG64(WHvArm64RegisterX24, pVCpu->cpum.GstCtx.aGRegs[24]);
1213	ADD_REG64(WHvArm64RegisterX25, pVCpu->cpum.GstCtx.aGRegs[25]);
1214	ADD_REG64(WHvArm64RegisterX26, pVCpu->cpum.GstCtx.aGRegs[26]);
1215	ADD_REG64(WHvArm64RegisterX27, pVCpu->cpum.GstCtx.aGRegs[27]);
1216	ADD_REG64(WHvArm64RegisterX28, pVCpu->cpum.GstCtx.aGRegs[28]);
1217	}
1218	if (fWhat & CPUMCTX_EXTRN_LR)
1219	ADD_REG64(WHvArm64RegisterLr, pVCpu->cpum.GstCtx.aGRegs[30]);
1220	if (fWhat & CPUMCTX_EXTRN_FP)
1221	ADD_REG64(WHvArm64RegisterFp, pVCpu->cpum.GstCtx.aGRegs[29]);
1222	}
1223
1224	/* RIP & Flags */
1225	if (fWhat & CPUMCTX_EXTRN_PC)
1226	ADD_SYSREG64(WHvArm64RegisterPc, pVCpu->cpum.GstCtx.Pc);
1227	if (fWhat & CPUMCTX_EXTRN_PSTATE)
1228	ADD_REG64_RAW(WHvArm64RegisterPstate, pVCpu->cpum.GstCtx.fPState);
1229	if (fWhat & CPUMCTX_EXTRN_SPSR)
1230	ADD_SYSREG64(WHvArm64RegisterSpsrEl1, pVCpu->cpum.GstCtx.Spsr);
1231	if (fWhat & CPUMCTX_EXTRN_ELR)
1232	ADD_SYSREG64(WHvArm64RegisterElrEl1, pVCpu->cpum.GstCtx.Elr);
1233	if (fWhat & CPUMCTX_EXTRN_SP)
1234	{
1235	ADD_SYSREG64(WHvArm64RegisterSpEl0, pVCpu->cpum.GstCtx.aSpReg[0]);
1236	ADD_SYSREG64(WHvArm64RegisterSpEl1, pVCpu->cpum.GstCtx.aSpReg[1]);
1237	}
1238	if (fWhat & CPUMCTX_EXTRN_SCTLR_TCR_TTBR)
1239	{
1240	ADD_SYSREG64(WHvArm64RegisterSctlrEl1, pVCpu->cpum.GstCtx.Sctlr);
1241	ADD_SYSREG64(WHvArm64RegisterTcrEl1, pVCpu->cpum.GstCtx.Tcr);
1242	ADD_SYSREG64(WHvArm64RegisterTtbr0El1, pVCpu->cpum.GstCtx.Ttbr0);
1243	ADD_SYSREG64(WHvArm64RegisterTtbr1El1, pVCpu->cpum.GstCtx.Ttbr1);
1244	}
1245
1246	/* Vector state. */
1247	if (fWhat & CPUMCTX_EXTRN_V0_V31)
1248	{
1249	ADD_REG128(WHvArm64RegisterQ0, pVCpu->cpum.GstCtx.aVRegs[0]);
1250	ADD_REG128(WHvArm64RegisterQ1, pVCpu->cpum.GstCtx.aVRegs[1]);
1251	ADD_REG128(WHvArm64RegisterQ2, pVCpu->cpum.GstCtx.aVRegs[2]);
1252	ADD_REG128(WHvArm64RegisterQ3, pVCpu->cpum.GstCtx.aVRegs[3]);
1253	ADD_REG128(WHvArm64RegisterQ4, pVCpu->cpum.GstCtx.aVRegs[4]);
1254	ADD_REG128(WHvArm64RegisterQ5, pVCpu->cpum.GstCtx.aVRegs[5]);
1255	ADD_REG128(WHvArm64RegisterQ6, pVCpu->cpum.GstCtx.aVRegs[6]);
1256	ADD_REG128(WHvArm64RegisterQ7, pVCpu->cpum.GstCtx.aVRegs[7]);
1257	ADD_REG128(WHvArm64RegisterQ8, pVCpu->cpum.GstCtx.aVRegs[8]);
1258	ADD_REG128(WHvArm64RegisterQ9, pVCpu->cpum.GstCtx.aVRegs[9]);
1259	ADD_REG128(WHvArm64RegisterQ10, pVCpu->cpum.GstCtx.aVRegs[10]);
1260	ADD_REG128(WHvArm64RegisterQ11, pVCpu->cpum.GstCtx.aVRegs[11]);
1261	ADD_REG128(WHvArm64RegisterQ12, pVCpu->cpum.GstCtx.aVRegs[12]);
1262	ADD_REG128(WHvArm64RegisterQ13, pVCpu->cpum.GstCtx.aVRegs[13]);
1263	ADD_REG128(WHvArm64RegisterQ14, pVCpu->cpum.GstCtx.aVRegs[14]);
1264	ADD_REG128(WHvArm64RegisterQ15, pVCpu->cpum.GstCtx.aVRegs[15]);
1265	ADD_REG128(WHvArm64RegisterQ16, pVCpu->cpum.GstCtx.aVRegs[16]);
1266	ADD_REG128(WHvArm64RegisterQ17, pVCpu->cpum.GstCtx.aVRegs[17]);
1267	ADD_REG128(WHvArm64RegisterQ18, pVCpu->cpum.GstCtx.aVRegs[18]);
1268	ADD_REG128(WHvArm64RegisterQ19, pVCpu->cpum.GstCtx.aVRegs[19]);
1269	ADD_REG128(WHvArm64RegisterQ20, pVCpu->cpum.GstCtx.aVRegs[20]);
1270	ADD_REG128(WHvArm64RegisterQ21, pVCpu->cpum.GstCtx.aVRegs[21]);
1271	ADD_REG128(WHvArm64RegisterQ22, pVCpu->cpum.GstCtx.aVRegs[22]);
1272	ADD_REG128(WHvArm64RegisterQ23, pVCpu->cpum.GstCtx.aVRegs[23]);
1273	ADD_REG128(WHvArm64RegisterQ24, pVCpu->cpum.GstCtx.aVRegs[24]);
1274	ADD_REG128(WHvArm64RegisterQ25, pVCpu->cpum.GstCtx.aVRegs[25]);
1275	ADD_REG128(WHvArm64RegisterQ26, pVCpu->cpum.GstCtx.aVRegs[26]);
1276	ADD_REG128(WHvArm64RegisterQ27, pVCpu->cpum.GstCtx.aVRegs[27]);
1277	ADD_REG128(WHvArm64RegisterQ28, pVCpu->cpum.GstCtx.aVRegs[28]);
1278	ADD_REG128(WHvArm64RegisterQ29, pVCpu->cpum.GstCtx.aVRegs[29]);
1279	ADD_REG128(WHvArm64RegisterQ30, pVCpu->cpum.GstCtx.aVRegs[30]);
1280	ADD_REG128(WHvArm64RegisterQ31, pVCpu->cpum.GstCtx.aVRegs[31]);
1281	}
1282
1283	if (fWhat & CPUMCTX_EXTRN_FPCR)
1284	ADD_REG64_RAW(WHvArm64RegisterFpcr, pVCpu->cpum.GstCtx.fpcr);
1285	if (fWhat & CPUMCTX_EXTRN_FPSR)
1286	ADD_REG64_RAW(WHvArm64RegisterFpsr, pVCpu->cpum.GstCtx.fpsr);
1287
1288	/* System registers. */
1289	if (fWhat & CPUMCTX_EXTRN_SYSREG_MISC)
1290	{
1291	ADD_SYSREG64(WHvArm64RegisterVbarEl1, pVCpu->cpum.GstCtx.VBar);
1292	ADD_SYSREG64(WHvArm64RegisterEsrEl1, pVCpu->cpum.GstCtx.Esr);
1293	ADD_SYSREG64(WHvArm64RegisterFarEl1, pVCpu->cpum.GstCtx.Far);
1294	ADD_SYSREG64(WHvArm64RegisterCntkctlEl1, pVCpu->cpum.GstCtx.CntKCtl);
1295	ADD_SYSREG64(WHvArm64RegisterContextidrEl1, pVCpu->cpum.GstCtx.ContextIdr);
1296	ADD_SYSREG64(WHvArm64RegisterCpacrEl1, pVCpu->cpum.GstCtx.Cpacr);
1297	ADD_SYSREG64(WHvArm64RegisterCsselrEl1, pVCpu->cpum.GstCtx.Csselr);
1298	ADD_SYSREG64(WHvArm64RegisterMairEl1, pVCpu->cpum.GstCtx.Mair);
1299	ADD_SYSREG64(WHvArm64RegisterParEl1, pVCpu->cpum.GstCtx.Par);
1300	ADD_SYSREG64(WHvArm64RegisterTpidrroEl0, pVCpu->cpum.GstCtx.TpIdrRoEl0);
1301	ADD_SYSREG64(WHvArm64RegisterTpidrEl0, pVCpu->cpum.GstCtx.aTpIdr[0]);
1302	ADD_SYSREG64(WHvArm64RegisterTpidrEl1, pVCpu->cpum.GstCtx.aTpIdr[1]);
1303	}
1304
1305	if (fWhat & CPUMCTX_EXTRN_SYSREG_DEBUG)
1306	{
1307	for (uint32_t i = 0; i < pVM->nem.s.cBreakpoints; i++)
1308	{
1309	ADD_SYSREG64((WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgbcr0El1 + i), pVCpu->cpum.GstCtx.aBp[i].Ctrl);
1310	ADD_SYSREG64((WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgbvr0El1 + i), pVCpu->cpum.GstCtx.aBp[i].Value);
1311	}
1312
1313	for (uint32_t i = 0; i < pVM->nem.s.cWatchpoints; i++)
1314	{
1315	ADD_SYSREG64((WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgwcr0El1 + i), pVCpu->cpum.GstCtx.aWp[i].Ctrl);
1316	ADD_SYSREG64((WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgwvr0El1 + i), pVCpu->cpum.GstCtx.aWp[i].Value);
1317	}
1318
1319	ADD_SYSREG64(WHvArm64RegisterMdscrEl1, pVCpu->cpum.GstCtx.Mdscr);
1320	}
1321
1322	if (fWhat & CPUMCTX_EXTRN_SYSREG_PAUTH_KEYS)
1323	{
1324	ADD_SYSREG64(WHvArm64RegisterApdAKeyHiEl1, pVCpu->cpum.GstCtx.Apda.High);
1325	ADD_SYSREG64(WHvArm64RegisterApdAKeyLoEl1, pVCpu->cpum.GstCtx.Apda.Low);
1326	ADD_SYSREG64(WHvArm64RegisterApdBKeyHiEl1, pVCpu->cpum.GstCtx.Apdb.High);
1327	ADD_SYSREG64(WHvArm64RegisterApdBKeyLoEl1, pVCpu->cpum.GstCtx.Apdb.Low);
1328	ADD_SYSREG64(WHvArm64RegisterApgAKeyHiEl1, pVCpu->cpum.GstCtx.Apga.High);
1329	ADD_SYSREG64(WHvArm64RegisterApgAKeyLoEl1, pVCpu->cpum.GstCtx.Apga.Low);
1330	ADD_SYSREG64(WHvArm64RegisterApiAKeyHiEl1, pVCpu->cpum.GstCtx.Apia.High);
1331	ADD_SYSREG64(WHvArm64RegisterApiAKeyLoEl1, pVCpu->cpum.GstCtx.Apia.Low);
1332	ADD_SYSREG64(WHvArm64RegisterApiBKeyHiEl1, pVCpu->cpum.GstCtx.Apib.High);
1333	ADD_SYSREG64(WHvArm64RegisterApiBKeyLoEl1, pVCpu->cpum.GstCtx.Apib.Low);
1334	}
1335
1336	#undef ADD_REG64
1337	#undef ADD_REG64_RAW
1338	#undef ADD_REG128
1339
1340	/*
1341	* Set the registers.
1342	*/
1343	Assert(iReg < RT_ELEMENTS(aValues));
1344	Assert(iReg < RT_ELEMENTS(aenmNames));
1345	HRESULT hrc = WHvSetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, aenmNames, iReg, aValues);
1346	if (SUCCEEDED(hrc))
1347	{
1348	pVCpu->cpum.GstCtx.fExtrn \|= CPUMCTX_EXTRN_ALL \| CPUMCTX_EXTRN_KEEPER_NEM;
1349	return VINF_SUCCESS;
1350	}
1351	AssertLogRelMsgFailed(("WHvSetVirtualProcessorRegisters(%p, %u,,%u,) -> %Rhrc (Last=%#x/%u)\n",
1352	pVM->nem.s.hPartition, pVCpu->idCpu, iReg,
1353	hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
1354	return VERR_INTERNAL_ERROR;
1355	}
1356
1357
1358	NEM_TMPL_STATIC int nemHCWinCopyStateFromHyperV(PVMCC pVM, PVMCPUCC pVCpu, uint64_t fWhat)
1359	{
1360	WHV_REGISTER_NAME aenmNames[256];
1361
1362	fWhat &= pVCpu->cpum.GstCtx.fExtrn;
1363	if (!fWhat)
1364	return VINF_SUCCESS;
1365
1366	uintptr_t iReg = 0;
1367
1368	/* GPRs */
1369	if (fWhat & CPUMCTX_EXTRN_GPRS_MASK)
1370	{
1371	if (fWhat & CPUMCTX_EXTRN_X0)
1372	aenmNames[iReg++] = WHvArm64RegisterX0;
1373	if (fWhat & CPUMCTX_EXTRN_X1)
1374	aenmNames[iReg++] = WHvArm64RegisterX1;
1375	if (fWhat & CPUMCTX_EXTRN_X2)
1376	aenmNames[iReg++] = WHvArm64RegisterX2;
1377	if (fWhat & CPUMCTX_EXTRN_X3)
1378	aenmNames[iReg++] = WHvArm64RegisterX3;
1379	if (fWhat & CPUMCTX_EXTRN_X4_X28)
1380	{
1381	aenmNames[iReg++] = WHvArm64RegisterX4;
1382	aenmNames[iReg++] = WHvArm64RegisterX5;
1383	aenmNames[iReg++] = WHvArm64RegisterX6;
1384	aenmNames[iReg++] = WHvArm64RegisterX7;
1385	aenmNames[iReg++] = WHvArm64RegisterX8;
1386	aenmNames[iReg++] = WHvArm64RegisterX9;
1387	aenmNames[iReg++] = WHvArm64RegisterX10;
1388	aenmNames[iReg++] = WHvArm64RegisterX11;
1389	aenmNames[iReg++] = WHvArm64RegisterX12;
1390	aenmNames[iReg++] = WHvArm64RegisterX13;
1391	aenmNames[iReg++] = WHvArm64RegisterX14;
1392	aenmNames[iReg++] = WHvArm64RegisterX15;
1393	aenmNames[iReg++] = WHvArm64RegisterX16;
1394	aenmNames[iReg++] = WHvArm64RegisterX17;
1395	aenmNames[iReg++] = WHvArm64RegisterX18;
1396	aenmNames[iReg++] = WHvArm64RegisterX19;
1397	aenmNames[iReg++] = WHvArm64RegisterX20;
1398	aenmNames[iReg++] = WHvArm64RegisterX21;
1399	aenmNames[iReg++] = WHvArm64RegisterX22;
1400	aenmNames[iReg++] = WHvArm64RegisterX23;
1401	aenmNames[iReg++] = WHvArm64RegisterX24;
1402	aenmNames[iReg++] = WHvArm64RegisterX25;
1403	aenmNames[iReg++] = WHvArm64RegisterX26;
1404	aenmNames[iReg++] = WHvArm64RegisterX27;
1405	aenmNames[iReg++] = WHvArm64RegisterX28;
1406	}
1407	if (fWhat & CPUMCTX_EXTRN_LR)
1408	aenmNames[iReg++] = WHvArm64RegisterLr;
1409	if (fWhat & CPUMCTX_EXTRN_FP)
1410	aenmNames[iReg++] = WHvArm64RegisterFp;
1411	}
1412
1413	/* PC & Flags */
1414	if (fWhat & CPUMCTX_EXTRN_PC)
1415	aenmNames[iReg++] = WHvArm64RegisterPc;
1416	if (fWhat & CPUMCTX_EXTRN_PSTATE)
1417	aenmNames[iReg++] = WHvArm64RegisterPstate;
1418	if (fWhat & CPUMCTX_EXTRN_SPSR)
1419	aenmNames[iReg++] = WHvArm64RegisterSpsrEl1;
1420	if (fWhat & CPUMCTX_EXTRN_ELR)
1421	aenmNames[iReg++] = WHvArm64RegisterElrEl1;
1422	if (fWhat & CPUMCTX_EXTRN_SP)
1423	{
1424	aenmNames[iReg++] = WHvArm64RegisterSpEl0;
1425	aenmNames[iReg++] = WHvArm64RegisterSpEl1;
1426	}
1427	if (fWhat & CPUMCTX_EXTRN_SCTLR_TCR_TTBR)
1428	{
1429	aenmNames[iReg++] = WHvArm64RegisterSctlrEl1;
1430	aenmNames[iReg++] = WHvArm64RegisterTcrEl1;
1431	aenmNames[iReg++] = WHvArm64RegisterTtbr0El1;
1432	aenmNames[iReg++] = WHvArm64RegisterTtbr1El1;
1433	}
1434
1435	/* Vector state. */
1436	if (fWhat & CPUMCTX_EXTRN_V0_V31)
1437	{
1438	aenmNames[iReg++] = WHvArm64RegisterQ0;
1439	aenmNames[iReg++] = WHvArm64RegisterQ1;
1440	aenmNames[iReg++] = WHvArm64RegisterQ2;
1441	aenmNames[iReg++] = WHvArm64RegisterQ3;
1442	aenmNames[iReg++] = WHvArm64RegisterQ4;
1443	aenmNames[iReg++] = WHvArm64RegisterQ5;
1444	aenmNames[iReg++] = WHvArm64RegisterQ6;
1445	aenmNames[iReg++] = WHvArm64RegisterQ7;
1446	aenmNames[iReg++] = WHvArm64RegisterQ8;
1447	aenmNames[iReg++] = WHvArm64RegisterQ9;
1448	aenmNames[iReg++] = WHvArm64RegisterQ10;
1449	aenmNames[iReg++] = WHvArm64RegisterQ11;
1450	aenmNames[iReg++] = WHvArm64RegisterQ12;
1451	aenmNames[iReg++] = WHvArm64RegisterQ13;
1452	aenmNames[iReg++] = WHvArm64RegisterQ14;
1453	aenmNames[iReg++] = WHvArm64RegisterQ15;
1454
1455	aenmNames[iReg++] = WHvArm64RegisterQ16;
1456	aenmNames[iReg++] = WHvArm64RegisterQ17;
1457	aenmNames[iReg++] = WHvArm64RegisterQ18;
1458	aenmNames[iReg++] = WHvArm64RegisterQ19;
1459	aenmNames[iReg++] = WHvArm64RegisterQ20;
1460	aenmNames[iReg++] = WHvArm64RegisterQ21;
1461	aenmNames[iReg++] = WHvArm64RegisterQ22;
1462	aenmNames[iReg++] = WHvArm64RegisterQ23;
1463	aenmNames[iReg++] = WHvArm64RegisterQ24;
1464	aenmNames[iReg++] = WHvArm64RegisterQ25;
1465	aenmNames[iReg++] = WHvArm64RegisterQ26;
1466	aenmNames[iReg++] = WHvArm64RegisterQ27;
1467	aenmNames[iReg++] = WHvArm64RegisterQ28;
1468	aenmNames[iReg++] = WHvArm64RegisterQ29;
1469	aenmNames[iReg++] = WHvArm64RegisterQ30;
1470	aenmNames[iReg++] = WHvArm64RegisterQ31;
1471	}
1472	if (fWhat & CPUMCTX_EXTRN_FPCR)
1473	aenmNames[iReg++] = WHvArm64RegisterFpcr;
1474	if (fWhat & CPUMCTX_EXTRN_FPSR)
1475	aenmNames[iReg++] = WHvArm64RegisterFpsr;
1476
1477	/* System registers. */
1478	if (fWhat & CPUMCTX_EXTRN_SYSREG_MISC)
1479	{
1480	aenmNames[iReg++] = WHvArm64RegisterVbarEl1;
1481	aenmNames[iReg++] = WHvArm64RegisterEsrEl1;
1482	aenmNames[iReg++] = WHvArm64RegisterFarEl1;
1483	aenmNames[iReg++] = WHvArm64RegisterCntkctlEl1;
1484	aenmNames[iReg++] = WHvArm64RegisterContextidrEl1;
1485	aenmNames[iReg++] = WHvArm64RegisterCpacrEl1;
1486	aenmNames[iReg++] = WHvArm64RegisterCsselrEl1;
1487	aenmNames[iReg++] = WHvArm64RegisterMairEl1;
1488	aenmNames[iReg++] = WHvArm64RegisterParEl1;
1489	aenmNames[iReg++] = WHvArm64RegisterTpidrroEl0;
1490	aenmNames[iReg++] = WHvArm64RegisterTpidrEl0;
1491	aenmNames[iReg++] = WHvArm64RegisterTpidrEl1;
1492	}
1493
1494	if (fWhat & CPUMCTX_EXTRN_SYSREG_DEBUG)
1495	{
1496	/* Hyper-V doesn't allow syncing debug break-/watchpoint registers which aren't there. */
1497	for (uint32_t i = 0; i < pVM->nem.s.cBreakpoints; i++)
1498	{
1499	aenmNames[iReg++] = (WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgbcr0El1 + i);
1500	aenmNames[iReg++] = (WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgbvr0El1 + i);
1501	}
1502
1503	for (uint32_t i = 0; i < pVM->nem.s.cWatchpoints; i++)
1504	{
1505	aenmNames[iReg++] = (WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgwcr0El1 + i);
1506	aenmNames[iReg++] = (WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgwvr0El1 + i);
1507	}
1508
1509	aenmNames[iReg++] = WHvArm64RegisterMdscrEl1;
1510	}
1511
1512	if (fWhat & CPUMCTX_EXTRN_SYSREG_PAUTH_KEYS)
1513	{
1514	aenmNames[iReg++] = WHvArm64RegisterApdAKeyHiEl1;
1515	aenmNames[iReg++] = WHvArm64RegisterApdAKeyLoEl1;
1516	aenmNames[iReg++] = WHvArm64RegisterApdBKeyHiEl1;
1517	aenmNames[iReg++] = WHvArm64RegisterApdBKeyLoEl1;
1518	aenmNames[iReg++] = WHvArm64RegisterApgAKeyHiEl1;
1519	aenmNames[iReg++] = WHvArm64RegisterApgAKeyLoEl1;
1520	aenmNames[iReg++] = WHvArm64RegisterApiAKeyHiEl1;
1521	aenmNames[iReg++] = WHvArm64RegisterApiAKeyLoEl1;
1522	aenmNames[iReg++] = WHvArm64RegisterApiBKeyHiEl1;
1523	aenmNames[iReg++] = WHvArm64RegisterApiBKeyLoEl1;
1524	}
1525
1526	size_t const cRegs = iReg;
1527	Assert(cRegs < RT_ELEMENTS(aenmNames));
1528
1529	/*
1530	* Get the registers.
1531	*/
1532	WHV_REGISTER_VALUE aValues[256];
1533	RT_ZERO(aValues);
1534	Assert(RT_ELEMENTS(aValues) >= cRegs);
1535	Assert(RT_ELEMENTS(aenmNames) >= cRegs);
1536	HRESULT hrc = WHvGetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, aenmNames, (uint32_t)cRegs, aValues);
1537	AssertLogRelMsgReturn(SUCCEEDED(hrc),
1538	("WHvGetVirtualProcessorRegisters(%p, %u,,%u,) -> %Rhrc (Last=%#x/%u)\n",
1539	pVM->nem.s.hPartition, pVCpu->idCpu, cRegs, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
1540	, VERR_NEM_GET_REGISTERS_FAILED);
1541
1542	iReg = 0;
1543	#define GET_REG64(a_DstVar, a_enmName) do { \
1544	Assert(aenmNames[iReg] == (a_enmName)); \
1545	(a_DstVar).x = aValues[iReg].Reg64; \
1546	iReg++; \
1547	} while (0)
1548	#define GET_REG64_RAW(a_DstVar, a_enmName) do { \
1549	Assert(aenmNames[iReg] == (a_enmName)); \
1550	(a_DstVar) = aValues[iReg].Reg64; \
1551	iReg++; \
1552	} while (0)
1553	#define GET_SYSREG64(a_DstVar, a_enmName) do { \
1554	Assert(aenmNames[iReg] == (a_enmName)); \
1555	(a_DstVar).u64 = aValues[iReg].Reg64; \
1556	iReg++; \
1557	} while (0)
1558	#define GET_REG128(a_DstVar, a_enmName) do { \
1559	Assert(aenmNames[iReg] == a_enmName); \
1560	(a_DstVar).au64[0] = aValues[iReg].Reg128.Low64; \
1561	(a_DstVar).au64[1] = aValues[iReg].Reg128.High64; \
1562	iReg++; \
1563	} while (0)
1564
1565	/* GPRs */
1566	if (fWhat & CPUMCTX_EXTRN_GPRS_MASK)
1567	{
1568	if (fWhat & CPUMCTX_EXTRN_X0)
1569	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[0], WHvArm64RegisterX0);
1570	if (fWhat & CPUMCTX_EXTRN_X1)
1571	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[1], WHvArm64RegisterX1);
1572	if (fWhat & CPUMCTX_EXTRN_X2)
1573	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[2], WHvArm64RegisterX2);
1574	if (fWhat & CPUMCTX_EXTRN_X3)
1575	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[3], WHvArm64RegisterX3);
1576	if (fWhat & CPUMCTX_EXTRN_X4_X28)
1577	{
1578	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[4], WHvArm64RegisterX4);
1579	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[5], WHvArm64RegisterX5);
1580	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[6], WHvArm64RegisterX6);
1581	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[7], WHvArm64RegisterX7);
1582	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[8], WHvArm64RegisterX8);
1583	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[9], WHvArm64RegisterX9);
1584	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[10], WHvArm64RegisterX10);
1585	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[11], WHvArm64RegisterX11);
1586	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[12], WHvArm64RegisterX12);
1587	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[13], WHvArm64RegisterX13);
1588	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[14], WHvArm64RegisterX14);
1589	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[15], WHvArm64RegisterX15);
1590	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[16], WHvArm64RegisterX16);
1591	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[17], WHvArm64RegisterX17);
1592	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[18], WHvArm64RegisterX18);
1593	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[19], WHvArm64RegisterX19);
1594	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[20], WHvArm64RegisterX20);
1595	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[21], WHvArm64RegisterX21);
1596	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[22], WHvArm64RegisterX22);
1597	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[23], WHvArm64RegisterX23);
1598	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[24], WHvArm64RegisterX24);
1599	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[25], WHvArm64RegisterX25);
1600	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[26], WHvArm64RegisterX26);
1601	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[27], WHvArm64RegisterX27);
1602	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[28], WHvArm64RegisterX28);
1603	}
1604	if (fWhat & CPUMCTX_EXTRN_LR)
1605	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[30], WHvArm64RegisterLr);
1606	if (fWhat & CPUMCTX_EXTRN_FP)
1607	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[29], WHvArm64RegisterFp);
1608	}
1609
1610	/* RIP & Flags */
1611	if (fWhat & CPUMCTX_EXTRN_PC)
1612	GET_REG64_RAW(pVCpu->cpum.GstCtx.Pc.u64, WHvArm64RegisterPc);
1613	if (fWhat & CPUMCTX_EXTRN_PSTATE)
1614	GET_REG64_RAW(pVCpu->cpum.GstCtx.fPState, WHvArm64RegisterPstate);
1615	if (fWhat & CPUMCTX_EXTRN_SPSR)
1616	GET_SYSREG64(pVCpu->cpum.GstCtx.Spsr, WHvArm64RegisterSpsrEl1);
1617	if (fWhat & CPUMCTX_EXTRN_ELR)
1618	GET_SYSREG64(pVCpu->cpum.GstCtx.Elr, WHvArm64RegisterElrEl1);
1619	if (fWhat & CPUMCTX_EXTRN_SP)
1620	{
1621	GET_SYSREG64(pVCpu->cpum.GstCtx.aSpReg[0], WHvArm64RegisterSpEl0);
1622	GET_SYSREG64(pVCpu->cpum.GstCtx.aSpReg[1], WHvArm64RegisterSpEl1);
1623	}
1624	if (fWhat & CPUMCTX_EXTRN_SCTLR_TCR_TTBR)
1625	{
1626	GET_SYSREG64(pVCpu->cpum.GstCtx.Sctlr, WHvArm64RegisterSctlrEl1);
1627	GET_SYSREG64(pVCpu->cpum.GstCtx.Tcr, WHvArm64RegisterTcrEl1);
1628	GET_SYSREG64(pVCpu->cpum.GstCtx.Ttbr0, WHvArm64RegisterTtbr0El1);
1629	GET_SYSREG64(pVCpu->cpum.GstCtx.Ttbr1, WHvArm64RegisterTtbr1El1);
1630	}
1631
1632	/* Vector state. */
1633	if (fWhat & CPUMCTX_EXTRN_V0_V31)
1634	{
1635	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[0], WHvArm64RegisterQ0);
1636	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[1], WHvArm64RegisterQ1);
1637	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[2], WHvArm64RegisterQ2);
1638	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[3], WHvArm64RegisterQ3);
1639	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[4], WHvArm64RegisterQ4);
1640	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[5], WHvArm64RegisterQ5);
1641	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[6], WHvArm64RegisterQ6);
1642	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[7], WHvArm64RegisterQ7);
1643	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[8], WHvArm64RegisterQ8);
1644	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[9], WHvArm64RegisterQ9);
1645	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[10], WHvArm64RegisterQ10);
1646	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[11], WHvArm64RegisterQ11);
1647	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[12], WHvArm64RegisterQ12);
1648	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[13], WHvArm64RegisterQ13);
1649	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[14], WHvArm64RegisterQ14);
1650	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[15], WHvArm64RegisterQ15);
1651
1652	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[16], WHvArm64RegisterQ16);
1653	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[17], WHvArm64RegisterQ17);
1654	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[18], WHvArm64RegisterQ18);
1655	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[19], WHvArm64RegisterQ19);
1656	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[20], WHvArm64RegisterQ20);
1657	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[21], WHvArm64RegisterQ21);
1658	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[22], WHvArm64RegisterQ22);
1659	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[23], WHvArm64RegisterQ23);
1660	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[24], WHvArm64RegisterQ24);
1661	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[25], WHvArm64RegisterQ25);
1662	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[26], WHvArm64RegisterQ26);
1663	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[27], WHvArm64RegisterQ27);
1664	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[28], WHvArm64RegisterQ28);
1665	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[29], WHvArm64RegisterQ29);
1666	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[30], WHvArm64RegisterQ30);
1667	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[31], WHvArm64RegisterQ31);
1668	}
1669	if (fWhat & CPUMCTX_EXTRN_FPCR)
1670	GET_REG64_RAW(pVCpu->cpum.GstCtx.fpcr, WHvArm64RegisterFpcr);
1671	if (fWhat & CPUMCTX_EXTRN_FPSR)
1672	GET_REG64_RAW(pVCpu->cpum.GstCtx.fpsr, WHvArm64RegisterFpsr);
1673
1674	/* System registers. */
1675	if (fWhat & CPUMCTX_EXTRN_SYSREG_MISC)
1676	{
1677	GET_SYSREG64(pVCpu->cpum.GstCtx.VBar, WHvArm64RegisterVbarEl1);
1678	GET_SYSREG64(pVCpu->cpum.GstCtx.Esr, WHvArm64RegisterEsrEl1);
1679	GET_SYSREG64(pVCpu->cpum.GstCtx.Far, WHvArm64RegisterFarEl1);
1680	GET_SYSREG64(pVCpu->cpum.GstCtx.CntKCtl, WHvArm64RegisterCntkctlEl1);
1681	GET_SYSREG64(pVCpu->cpum.GstCtx.ContextIdr, WHvArm64RegisterContextidrEl1);
1682	GET_SYSREG64(pVCpu->cpum.GstCtx.Cpacr, WHvArm64RegisterCpacrEl1);
1683	GET_SYSREG64(pVCpu->cpum.GstCtx.Csselr, WHvArm64RegisterCsselrEl1);
1684	GET_SYSREG64(pVCpu->cpum.GstCtx.Mair, WHvArm64RegisterMairEl1);
1685	GET_SYSREG64(pVCpu->cpum.GstCtx.Par, WHvArm64RegisterParEl1);
1686	GET_SYSREG64(pVCpu->cpum.GstCtx.TpIdrRoEl0, WHvArm64RegisterTpidrroEl0);
1687	GET_SYSREG64(pVCpu->cpum.GstCtx.aTpIdr[0], WHvArm64RegisterTpidrEl0);
1688	GET_SYSREG64(pVCpu->cpum.GstCtx.aTpIdr[1], WHvArm64RegisterTpidrEl1);
1689	}
1690
1691	if (fWhat & CPUMCTX_EXTRN_SYSREG_DEBUG)
1692	{
1693	for (uint32_t i = 0; i < pVM->nem.s.cBreakpoints; i++)
1694	{
1695	GET_SYSREG64(pVCpu->cpum.GstCtx.aBp[i].Ctrl, (WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgbcr0El1 + i));
1696	GET_SYSREG64(pVCpu->cpum.GstCtx.aBp[i].Value, (WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgbvr0El1 + i));
1697	}
1698
1699	for (uint32_t i = 0; i < pVM->nem.s.cWatchpoints; i++)
1700	{
1701	GET_SYSREG64(pVCpu->cpum.GstCtx.aWp[i].Ctrl, (WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgwcr0El1 + i));
1702	GET_SYSREG64(pVCpu->cpum.GstCtx.aWp[i].Value, (WHV_REGISTER_NAME)((uint32_t)WHvArm64RegisterDbgwvr0El1 + i));
1703	}
1704
1705	GET_SYSREG64(pVCpu->cpum.GstCtx.Mdscr, WHvArm64RegisterMdscrEl1);
1706	}
1707
1708	if (fWhat & CPUMCTX_EXTRN_SYSREG_PAUTH_KEYS)
1709	{
1710	GET_SYSREG64(pVCpu->cpum.GstCtx.Apda.High, WHvArm64RegisterApdAKeyHiEl1);
1711	GET_SYSREG64(pVCpu->cpum.GstCtx.Apda.Low, WHvArm64RegisterApdAKeyLoEl1);
1712	GET_SYSREG64(pVCpu->cpum.GstCtx.Apdb.High, WHvArm64RegisterApdBKeyHiEl1);
1713	GET_SYSREG64(pVCpu->cpum.GstCtx.Apdb.Low, WHvArm64RegisterApdBKeyLoEl1);
1714	GET_SYSREG64(pVCpu->cpum.GstCtx.Apga.High, WHvArm64RegisterApgAKeyHiEl1);
1715	GET_SYSREG64(pVCpu->cpum.GstCtx.Apga.Low, WHvArm64RegisterApgAKeyLoEl1);
1716	GET_SYSREG64(pVCpu->cpum.GstCtx.Apia.High, WHvArm64RegisterApiAKeyHiEl1);
1717	GET_SYSREG64(pVCpu->cpum.GstCtx.Apia.Low, WHvArm64RegisterApiAKeyLoEl1);
1718	GET_SYSREG64(pVCpu->cpum.GstCtx.Apib.High, WHvArm64RegisterApiBKeyHiEl1);
1719	GET_SYSREG64(pVCpu->cpum.GstCtx.Apib.Low, WHvArm64RegisterApiBKeyLoEl1);
1720	}
1721
1722	/* Almost done, just update extrn flags. */
1723	pVCpu->cpum.GstCtx.fExtrn &= ~fWhat;
1724	if (!(pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_ALL))
1725	pVCpu->cpum.GstCtx.fExtrn = 0;
1726
1727	return VINF_SUCCESS;
1728	}
1729
1730
1731	/**
1732	* Interface for importing state on demand (used by IEM).
1733	*
1734	* @returns VBox status code.
1735	* @param pVCpu The cross context CPU structure.
1736	* @param fWhat What to import, CPUMCTX_EXTRN_XXX.
1737	*/
1738	VMM_INT_DECL(int) NEMImportStateOnDemand(PVMCPUCC pVCpu, uint64_t fWhat)
1739	{
1740	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatImportOnDemand);
1741	return nemHCWinCopyStateFromHyperV(pVCpu->pVMR3, pVCpu, fWhat);
1742	}
1743
1744
1745	/**
1746	* Query the CPU tick counter and optionally the TSC_AUX MSR value.
1747	*
1748	* @returns VBox status code.
1749	* @param pVCpu The cross context CPU structure.
1750	* @param pcTicks Where to return the CPU tick count.
1751	* @param puAux Where to return the TSC_AUX register value.
1752	*/
1753	VMM_INT_DECL(int) NEMHCQueryCpuTick(PVMCPUCC pVCpu, uint64_t pcTicks, uint32_t puAux)
1754	{
1755	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatQueryCpuTick);
1756
1757	PVMCC pVM = pVCpu->CTX_SUFF(pVM);
1758	VMCPU_ASSERT_EMT_RETURN(pVCpu, VERR_VM_THREAD_NOT_EMT);
1759	AssertReturn(VM_IS_NEM_ENABLED(pVM), VERR_NEM_IPE_9);
1760
1761	#pragma message("NEMHCQueryCpuTick: Implement it!")
1762	#if 0 /** @todo */
1763	/* Call the offical API. */
1764	WHV_REGISTER_NAME aenmNames[2] = { WHvX64RegisterTsc, WHvX64RegisterTscAux };
1765	WHV_REGISTER_VALUE aValues[2] = { { {0, 0} }, { {0, 0} } };
1766	Assert(RT_ELEMENTS(aenmNames) == RT_ELEMENTS(aValues));
1767	HRESULT hrc = WHvGetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, aenmNames, 2, aValues);
1768	AssertLogRelMsgReturn(SUCCEEDED(hrc),
1769	("WHvGetVirtualProcessorRegisters(%p, %u,{tsc,tsc_aux},2,) -> %Rhrc (Last=%#x/%u)\n",
1770	pVM->nem.s.hPartition, pVCpu->idCpu, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
1771	, VERR_NEM_GET_REGISTERS_FAILED);
1772	*pcTicks = aValues[0].Reg64;
1773	if (puAux)
1774	*puAux = pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_TSC_AUX ? aValues[1].Reg64 : CPUMGetGuestTscAux(pVCpu);
1775	#else
1776	RT_NOREF(pVCpu, pcTicks, puAux);
1777	#endif
1778	return VINF_SUCCESS;
1779	}
1780
1781
1782	/**
1783	* Resumes CPU clock (TSC) on all virtual CPUs.
1784	*
1785	* This is called by TM when the VM is started, restored, resumed or similar.
1786	*
1787	* @returns VBox status code.
1788	* @param pVM The cross context VM structure.
1789	* @param pVCpu The cross context CPU structure of the calling EMT.
1790	* @param uPausedTscValue The TSC value at the time of pausing.
1791	*/
1792	VMM_INT_DECL(int) NEMHCResumeCpuTickOnAll(PVMCC pVM, PVMCPUCC pVCpu, uint64_t uPausedTscValue)
1793	{
1794	VMCPU_ASSERT_EMT_RETURN(pVCpu, VERR_VM_THREAD_NOT_EMT);
1795	AssertReturn(VM_IS_NEM_ENABLED(pVM), VERR_NEM_IPE_9);
1796
1797	/*
1798	* Call the offical API to do the job.
1799	*/
1800	if (pVM->cCpus > 1)
1801	RTThreadYield(); /* Try decrease the chance that we get rescheduled in the middle. */
1802
1803	#pragma message("NEMHCResumeCpuTickOnAll: Implement it!")
1804	#if 0 /** @todo */
1805	/* Start with the first CPU. */
1806	WHV_REGISTER_NAME enmName = WHvX64RegisterTsc;
1807	WHV_REGISTER_VALUE Value = { {0, 0} };
1808	Value.Reg64 = uPausedTscValue;
1809	uint64_t const uFirstTsc = ASMReadTSC();
1810	HRESULT hrc = WHvSetVirtualProcessorRegisters(pVM->nem.s.hPartition, 0 /iCpu/, &enmName, 1, &Value);
1811	AssertLogRelMsgReturn(SUCCEEDED(hrc),
1812	("WHvSetVirtualProcessorRegisters(%p, 0,{tsc},2,%#RX64) -> %Rhrc (Last=%#x/%u)\n",
1813	pVM->nem.s.hPartition, uPausedTscValue, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
1814	, VERR_NEM_SET_TSC);
1815
1816	/* Do the other CPUs, adjusting for elapsed TSC and keeping finger crossed
1817	that we don't introduce too much drift here. */
1818	for (VMCPUID iCpu = 1; iCpu < pVM->cCpus; iCpu++)
1819	{
1820	Assert(enmName == WHvX64RegisterTsc);
1821	const uint64_t offDelta = (ASMReadTSC() - uFirstTsc);
1822	Value.Reg64 = uPausedTscValue + offDelta;
1823	hrc = WHvSetVirtualProcessorRegisters(pVM->nem.s.hPartition, iCpu, &enmName, 1, &Value);
1824	AssertLogRelMsgReturn(SUCCEEDED(hrc),
1825	("WHvSetVirtualProcessorRegisters(%p, 0,{tsc},2,%#RX64 + %#RX64) -> %Rhrc (Last=%#x/%u)\n",
1826	pVM->nem.s.hPartition, iCpu, uPausedTscValue, offDelta, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
1827	, VERR_NEM_SET_TSC);
1828	}
1829	#else
1830	RT_NOREF(uPausedTscValue);
1831	#endif
1832
1833	return VINF_SUCCESS;
1834	}
1835
1836
1837	#ifdef LOG_ENABLED
1838	/**
1839	* Logs the current CPU state.
1840	*/
1841	static void nemR3WinLogState(PVMCC pVM, PVMCPUCC pVCpu)
1842	{
1843	if (LogIs3Enabled())
1844	{
1845	char szRegs[4096];
1846	DBGFR3RegPrintf(pVM->pUVM, pVCpu->idCpu, &szRegs[0], sizeof(szRegs),
1847	"x0=%016VR{x0} x1=%016VR{x1} x2=%016VR{x2} x3=%016VR{x3}\n"
1848	"x4=%016VR{x4} x5=%016VR{x5} x6=%016VR{x6} x7=%016VR{x7}\n"
1849	"x8=%016VR{x8} x9=%016VR{x9} x10=%016VR{x10} x11=%016VR{x11}\n"
1850	"x12=%016VR{x12} x13=%016VR{x13} x14=%016VR{x14} x15=%016VR{x15}\n"
1851	"x16=%016VR{x16} x17=%016VR{x17} x18=%016VR{x18} x19=%016VR{x19}\n"
1852	"x20=%016VR{x20} x21=%016VR{x21} x22=%016VR{x22} x23=%016VR{x23}\n"
1853	"x24=%016VR{x24} x25=%016VR{x25} x26=%016VR{x26} x27=%016VR{x27}\n"
1854	"x28=%016VR{x28} x29=%016VR{x29} x30=%016VR{x30}\n"
1855	"pc=%016VR{pc} pstate=%016VR{pstate}\n"
1856	"sp_el0=%016VR{sp_el0} sp_el1=%016VR{sp_el1} elr_el1=%016VR{elr_el1}\n"
1857	"sctlr_el1=%016VR{sctlr_el1} tcr_el1=%016VR{tcr_el1}\n"
1858	"ttbr0_el1=%016VR{ttbr0_el1} ttbr1_el1=%016VR{ttbr1_el1}\n"
1859	"vbar_el1=%016VR{vbar_el1}\n"
1860	);
1861	char szInstr[256]; RT_ZERO(szInstr);
1862	DBGFR3DisasInstrEx(pVM->pUVM, pVCpu->idCpu, 0, 0,
1863	DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_DEFAULT_MODE,
1864	szInstr, sizeof(szInstr), NULL);
1865	Log3(("%s%s\n", szRegs, szInstr));
1866	}
1867	}
1868	#endif /* LOG_ENABLED */
1869
1870
1871	/**
1872	* Copies register state from the (common) exit context.
1873	*
1874	* ASSUMES no state copied yet.
1875	*
1876	* @param pVCpu The cross context per CPU structure.
1877	* @param pMsgHdr The common message header.
1878	*/
1879	DECLINLINE(void) nemR3WinCopyStateFromArmHeader(PVMCPUCC pVCpu, WHV_INTERCEPT_MESSAGE_HEADER const *pMsgHdr)
1880	{
1881	#ifdef LOG_ENABLED /* When state logging is enabled the state is synced completely upon VM exit. */
1882	if (!LogIs3Enabled())
1883	#endif
1884	Assert( (pVCpu->cpum.GstCtx.fExtrn & (CPUMCTX_EXTRN_PC \| CPUMCTX_EXTRN_PSTATE))
1885	== (CPUMCTX_EXTRN_PC \| CPUMCTX_EXTRN_PSTATE));
1886
1887	pVCpu->cpum.GstCtx.Pc.u64 = pMsgHdr->Pc;
1888	pVCpu->cpum.GstCtx.fPState = pMsgHdr->Cpsr;
1889
1890	pVCpu->cpum.GstCtx.fExtrn &= ~(CPUMCTX_EXTRN_PC \| CPUMCTX_EXTRN_PSTATE);
1891	}
1892
1893
1894	/**
1895	* State to pass between nemHCWinHandleMemoryAccess / nemR3WinWHvHandleMemoryAccess
1896	* and nemHCWinHandleMemoryAccessPageCheckerCallback.
1897	*/
1898	typedef struct NEMHCWINHMACPCCSTATE
1899	{
1900	/** Input: Write access. */
1901	bool fWriteAccess;
1902	/** Output: Set if we did something. */
1903	bool fDidSomething;
1904	/** Output: Set it we should resume. */
1905	bool fCanResume;
1906	} NEMHCWINHMACPCCSTATE;
1907
1908	/**
1909	* @callback_method_impl{FNPGMPHYSNEMCHECKPAGE,
1910	* Worker for nemR3WinHandleMemoryAccess; pvUser points to a
1911	* NEMHCWINHMACPCCSTATE structure. }
1912	*/
1913	NEM_TMPL_STATIC DECLCALLBACK(int)
1914	nemHCWinHandleMemoryAccessPageCheckerCallback(PVMCC pVM, PVMCPUCC pVCpu, RTGCPHYS GCPhys, PPGMPHYSNEMPAGEINFO pInfo, void *pvUser)
1915	{
1916	NEMHCWINHMACPCCSTATE pState = (NEMHCWINHMACPCCSTATE )pvUser;
1917	pState->fDidSomething = false;
1918	pState->fCanResume = false;
1919
1920	/* If A20 is disabled, we may need to make another query on the masked
1921	page to get the correct protection information. */
1922	uint8_t u2State = pInfo->u2NemState;
1923	RTGCPHYS GCPhysSrc = GCPhys;
1924
1925	/*
1926	* Consolidate current page state with actual page protection and access type.
1927	* We don't really consider downgrades here, as they shouldn't happen.
1928	*/
1929	int rc;
1930	switch (u2State)
1931	{
1932	case NEM_WIN_PAGE_STATE_UNMAPPED:
1933	case NEM_WIN_PAGE_STATE_NOT_SET:
1934	if (pInfo->fNemProt == NEM_PAGE_PROT_NONE)
1935	{
1936	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #1\n", GCPhys));
1937	return VINF_SUCCESS;
1938	}
1939
1940	/* Don't bother remapping it if it's a write request to a non-writable page. */
1941	if ( pState->fWriteAccess
1942	&& !(pInfo->fNemProt & NEM_PAGE_PROT_WRITE))
1943	{
1944	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #1w\n", GCPhys));
1945	return VINF_SUCCESS;
1946	}
1947
1948	/* Map the page. */
1949	rc = nemHCNativeSetPhysPage(pVM,
1950	pVCpu,
1951	GCPhysSrc & ~(RTGCPHYS)X86_PAGE_OFFSET_MASK,
1952	GCPhys & ~(RTGCPHYS)X86_PAGE_OFFSET_MASK,
1953	pInfo->fNemProt,
1954	&u2State,
1955	true /fBackingState/);
1956	pInfo->u2NemState = u2State;
1957	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - synced => %s + %Rrc\n",
1958	GCPhys, g_apszPageStates[u2State], rc));
1959	pState->fDidSomething = true;
1960	pState->fCanResume = true;
1961	return rc;
1962
1963	case NEM_WIN_PAGE_STATE_READABLE:
1964	if ( !(pInfo->fNemProt & NEM_PAGE_PROT_WRITE)
1965	&& (pInfo->fNemProt & (NEM_PAGE_PROT_READ \| NEM_PAGE_PROT_EXECUTE)))
1966	{
1967	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #2\n", GCPhys));
1968	return VINF_SUCCESS;
1969	}
1970
1971	break;
1972
1973	case NEM_WIN_PAGE_STATE_WRITABLE:
1974	if (pInfo->fNemProt & NEM_PAGE_PROT_WRITE)
1975	{
1976	if (pInfo->u2OldNemState == NEM_WIN_PAGE_STATE_WRITABLE)
1977	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #3a\n", GCPhys));
1978	else
1979	{
1980	pState->fCanResume = true;
1981	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #3b (%s -> %s)\n",
1982	GCPhys, g_apszPageStates[pInfo->u2OldNemState], g_apszPageStates[u2State]));
1983	}
1984	return VINF_SUCCESS;
1985	}
1986	break;
1987
1988	default:
1989	AssertLogRelMsgFailedReturn(("u2State=%#x\n", u2State), VERR_NEM_IPE_4);
1990	}
1991
1992	/*
1993	* Unmap and restart the instruction.
1994	* If this fails, which it does every so often, just unmap everything for now.
1995	*/
1996	/** @todo figure out whether we mess up the state or if it's WHv. */
1997	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
1998	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhys, X86_PAGE_SIZE);
1999	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
2000	if (SUCCEEDED(hrc))
2001	{
2002	pState->fDidSomething = true;
2003	pState->fCanResume = true;
2004	pInfo->u2NemState = NEM_WIN_PAGE_STATE_UNMAPPED;
2005	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPage);
2006	uint32_t cMappedPages = ASMAtomicDecU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
2007	Log5(("NEM GPA unmapped/exit: %RGp (was %s, cMappedPages=%u)\n", GCPhys, g_apszPageStates[u2State], cMappedPages));
2008	return VINF_SUCCESS;
2009	}
2010	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
2011	LogRel(("nemHCWinHandleMemoryAccessPageCheckerCallback/unmap: GCPhysDst=%RGp %s hrc=%Rhrc (%#x)\n",
2012	GCPhys, g_apszPageStates[u2State], hrc, hrc));
2013	return VERR_NEM_UNMAP_PAGES_FAILED;
2014	}
2015
2016
2017	/**
2018	* Returns the byte size from the given access SAS value.
2019	*
2020	* @returns Number of bytes to transfer.
2021	* @param uSas The SAS value to convert.
2022	*/
2023	DECLINLINE(size_t) nemR3WinGetByteCountFromSas(uint8_t uSas)
2024	{
2025	switch (uSas)
2026	{
2027	case ARMV8_EC_ISS_DATA_ABRT_SAS_BYTE: return sizeof(uint8_t);
2028	case ARMV8_EC_ISS_DATA_ABRT_SAS_HALFWORD: return sizeof(uint16_t);
2029	case ARMV8_EC_ISS_DATA_ABRT_SAS_WORD: return sizeof(uint32_t);
2030	case ARMV8_EC_ISS_DATA_ABRT_SAS_DWORD: return sizeof(uint64_t);
2031	default:
2032	AssertReleaseFailed();
2033	}
2034
2035	return 0;
2036	}
2037
2038
2039	/**
2040	* Sets the given general purpose register to the given value.
2041	*
2042	* @param pVCpu The cross context virtual CPU structure of the
2043	* calling EMT.
2044	* @param uReg The register index.
2045	* @param f64BitReg Flag whether to operate on a 64-bit or 32-bit register.
2046	* @param fSignExtend Flag whether to sign extend the value.
2047	* @param u64Val The value.
2048	*/
2049	DECLINLINE(void) nemR3WinSetGReg(PVMCPU pVCpu, uint8_t uReg, bool f64BitReg, bool fSignExtend, uint64_t u64Val)
2050	{
2051	AssertReturnVoid(uReg < 31);
2052
2053	if (f64BitReg)
2054	pVCpu->cpum.GstCtx.aGRegs[uReg].x = fSignExtend ? (int64_t)u64Val : u64Val;
2055	else
2056	pVCpu->cpum.GstCtx.aGRegs[uReg].x = (uint64_t)(fSignExtend ? (int32_t)u64Val : (uint32_t)u64Val);
2057
2058	/* Mark the register as not extern anymore. */
2059	switch (uReg)
2060	{
2061	case 0:
2062	pVCpu->cpum.GstCtx.fExtrn &= ~CPUMCTX_EXTRN_X0;
2063	break;
2064	case 1:
2065	pVCpu->cpum.GstCtx.fExtrn &= ~CPUMCTX_EXTRN_X1;
2066	break;
2067	case 2:
2068	pVCpu->cpum.GstCtx.fExtrn &= ~CPUMCTX_EXTRN_X2;
2069	break;
2070	case 3:
2071	pVCpu->cpum.GstCtx.fExtrn &= ~CPUMCTX_EXTRN_X3;
2072	break;
2073	default:
2074	AssertRelease(!(pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_X4_X28));
2075	/** @todo We need to import all missing registers in order to clear this flag (or just set it in HV from here). */
2076	}
2077	}
2078
2079
2080	/**
2081	* Gets the given general purpose register and returns the value.
2082	*
2083	* @returns Value from the given register.
2084	* @param pVCpu The cross context virtual CPU structure of the
2085	* calling EMT.
2086	* @param uReg The register index.
2087	*/
2088	DECLINLINE(uint64_t) nemR3WinGetGReg(PVMCPU pVCpu, uint8_t uReg)
2089	{
2090	AssertReturn(uReg <= ARMV8_A64_REG_XZR, 0);
2091
2092	if (uReg == ARMV8_A64_REG_XZR)
2093	return 0;
2094
2095	/** @todo Import the register if extern. */
2096	AssertRelease(!(pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_GPRS_MASK));
2097
2098	return pVCpu->cpum.GstCtx.aGRegs[uReg].x;
2099	}
2100
2101
2102	/**
2103	* Deals with memory access exits (WHvRunVpExitReasonMemoryAccess).
2104	*
2105	* @returns Strict VBox status code.
2106	* @param pVM The cross context VM structure.
2107	* @param pVCpu The cross context per CPU structure.
2108	* @param pExit The VM exit information to handle.
2109	* @sa nemHCWinHandleMessageMemory
2110	*/
2111	NEM_TMPL_STATIC VBOXSTRICTRC
2112	nemR3WinHandleExitMemory(PVMCC pVM, PVMCPUCC pVCpu, MY_WHV_RUN_VP_EXIT_CONTEXT const *pExit)
2113	{
2114	uint64_t const uHostTsc = ASMReadTSC();
2115	Assert(pExit->MemoryAccess.Header.InterceptAccessType != 3);
2116
2117	/*
2118	* Ask PGM for information about the given GCPhys. We need to check if we're
2119	* out of sync first.
2120	*/
2121	WHV_INTERCEPT_MESSAGE_HEADER const *pHdr = &pExit->MemoryAccess.Header;
2122	NEMHCWINHMACPCCSTATE State = { pExit->MemoryAccess.Header.InterceptAccessType == WHvMemoryAccessWrite, false, false };
2123	PGMPHYSNEMPAGEINFO Info;
2124	int rc = PGMPhysNemPageInfoChecker(pVM, pVCpu, pExit->MemoryAccess.Gpa, State.fWriteAccess, &Info,
2125	nemHCWinHandleMemoryAccessPageCheckerCallback, &State);
2126	if (RT_SUCCESS(rc))
2127	{
2128	if (Info.fNemProt & ( pExit->MemoryAccess.Header.InterceptAccessType == WHvMemoryAccessWrite
2129	? NEM_PAGE_PROT_WRITE : NEM_PAGE_PROT_READ))
2130	{
2131	if (State.fCanResume)
2132	{
2133	Log4(("MemExit/%u: %08RX64: %RGp (=>%RHp) %s fProt=%u%s%s%s; restarting (%s)\n",
2134	pVCpu->idCpu, pHdr->Pc,
2135	pExit->MemoryAccess.Gpa, Info.HCPhys, g_apszPageStates[Info.u2NemState], Info.fNemProt,
2136	Info.fHasHandlers ? " handlers" : "", Info.fZeroPage ? " zero-pg" : "",
2137	State.fDidSomething ? "" : " no-change", g_apszHvInterceptAccessTypes[pExit->MemoryAccess.Header.InterceptAccessType]));
2138	EMHistoryAddExit(pVCpu, EMEXIT_MAKE_FT(EMEXIT_F_KIND_NEM, NEMEXITTYPE_MEMORY_ACCESS),
2139	pHdr->Pc, uHostTsc);
2140	return VINF_SUCCESS;
2141	}
2142	}
2143	Log4(("MemExit/%u: %08RX64: %RGp (=>%RHp) %s fProt=%u%s%s%s; emulating (%s)\n",
2144	pVCpu->idCpu, pHdr->Pc,
2145	pExit->MemoryAccess.Gpa, Info.HCPhys, g_apszPageStates[Info.u2NemState], Info.fNemProt,
2146	Info.fHasHandlers ? " handlers" : "", Info.fZeroPage ? " zero-pg" : "",
2147	State.fDidSomething ? "" : " no-change", g_apszHvInterceptAccessTypes[pExit->MemoryAccess.Header.InterceptAccessType]));
2148	}
2149	else
2150	Log4(("MemExit/%u: %08RX64: %RGp rc=%Rrc%s; emulating (%s)\n",
2151	pVCpu->idCpu, pHdr->Pc,
2152	pExit->MemoryAccess.Gpa, rc, State.fDidSomething ? " modified-backing" : "",
2153	g_apszHvInterceptAccessTypes[pExit->MemoryAccess.Header.InterceptAccessType]));
2154
2155	/*
2156	* Emulate the memory access, either access handler or special memory.
2157	*/
2158	PCEMEXITREC pExitRec = EMHistoryAddExit(pVCpu,
2159	pExit->MemoryAccess.Header.InterceptAccessType == WHvMemoryAccessWrite
2160	? EMEXIT_MAKE_FT(EMEXIT_F_KIND_EM, EMEXITTYPE_MMIO_WRITE)
2161	: EMEXIT_MAKE_FT(EMEXIT_F_KIND_EM, EMEXITTYPE_MMIO_READ),
2162	pHdr->Pc, uHostTsc);
2163	nemR3WinCopyStateFromArmHeader(pVCpu, &pExit->MemoryAccess.Header);
2164	RT_NOREF_PV(pExitRec);
2165	rc = nemHCWinCopyStateFromHyperV(pVM, pVCpu, IEM_CPUMCTX_EXTRN_MUST_MASK);
2166	AssertRCReturn(rc, rc);
2167
2168	#ifdef LOG_ENABLED
2169	uint8_t const cbInstr = pExit->MemoryAccess.InstructionByteCount;
2170	RTGCPTR const GCPtrVa = pExit->MemoryAccess.Gva;
2171	#endif
2172	RTGCPHYS const GCPhys = pExit->MemoryAccess.Gpa;
2173	uint64_t const uIss = pExit->MemoryAccess.Syndrome;
2174	bool fIsv = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_ISV);
2175	bool fL2Fault = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_S1PTW);
2176	bool fWrite = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_WNR);
2177	bool f64BitReg = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_SF);
2178	bool fSignExtend = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_SSE);
2179	uint8_t uReg = ARMV8_EC_ISS_DATA_ABRT_SRT_GET(uIss);
2180	uint8_t uAcc = ARMV8_EC_ISS_DATA_ABRT_SAS_GET(uIss);
2181	size_t cbAcc = nemR3WinGetByteCountFromSas(uAcc);
2182	LogFlowFunc(("fIsv=%RTbool fL2Fault=%RTbool fWrite=%RTbool f64BitReg=%RTbool fSignExtend=%RTbool uReg=%u uAcc=%u GCPtrDataAbrt=%RGv GCPhys=%RGp cbInstr=%u\n",
2183	fIsv, fL2Fault, fWrite, f64BitReg, fSignExtend, uReg, uAcc, GCPtrVa, GCPhys, cbInstr));
2184
2185	RT_NOREF(fL2Fault);
2186
2187	VBOXSTRICTRC rcStrict;
2188	if (fIsv)
2189	{
2190	EMHistoryAddExit(pVCpu,
2191	fWrite
2192	? EMEXIT_MAKE_FT(EMEXIT_F_KIND_EM, EMEXITTYPE_MMIO_WRITE)
2193	: EMEXIT_MAKE_FT(EMEXIT_F_KIND_EM, EMEXITTYPE_MMIO_READ),
2194	pVCpu->cpum.GstCtx.Pc.u64, ASMReadTSC());
2195
2196	uint64_t u64Val = 0;
2197	if (fWrite)
2198	{
2199	u64Val = nemR3WinGetGReg(pVCpu, uReg);
2200	rcStrict = PGMPhysWrite(pVM, GCPhys, &u64Val, cbAcc, PGMACCESSORIGIN_HM);
2201	Log4(("MmioExit/%u: %08RX64: WRITE %RGp LB %u, %.*Rhxs -> rcStrict=%Rrc\n",
2202	pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc.u64, GCPhys, cbAcc, cbAcc,
2203	&u64Val, VBOXSTRICTRC_VAL(rcStrict) ));
2204	}
2205	else
2206	{
2207	rcStrict = PGMPhysRead(pVM, GCPhys, &u64Val, cbAcc, PGMACCESSORIGIN_HM);
2208	Log4(("MmioExit/%u: %08RX64: READ %RGp LB %u -> %.*Rhxs rcStrict=%Rrc\n",
2209	pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc.u64, GCPhys, cbAcc, cbAcc,
2210	&u64Val, VBOXSTRICTRC_VAL(rcStrict) ));
2211	if (rcStrict == VINF_SUCCESS)
2212	nemR3WinSetGReg(pVCpu, uReg, f64BitReg, fSignExtend, u64Val);
2213	}
2214	}
2215	else
2216	{
2217	/** @todo Our UEFI firmware accesses the flash region with the following instruction
2218	* when the NVRAM actually contains data:
2219	* ldrb w9, [x6, #-0x0001]!
2220	* This is too complicated for the hardware so the ISV bit is not set. Until there
2221	* is a proper IEM implementation we just handle this here for now to avoid annoying
2222	* users too much.
2223	*/
2224	/* The following ASSUMES that the vCPU state is completely synced. */
2225
2226	/* Read instruction. */
2227	RTGCPTR GCPtrPage = pVCpu->cpum.GstCtx.Pc.u64 & ~(RTGCPTR)GUEST_PAGE_OFFSET_MASK;
2228	const void *pvPageR3 = NULL;
2229	PGMPAGEMAPLOCK PageMapLock;
2230
2231	rcStrict = PGMPhysGCPtr2CCPtrReadOnly(pVCpu, GCPtrPage, &pvPageR3, &PageMapLock);
2232	if (rcStrict == VINF_SUCCESS)
2233	{
2234	uint32_t u32Instr = (uint32_t )((uint8_t *)pvPageR3 + (pVCpu->cpum.GstCtx.Pc.u64 - GCPtrPage));
2235	PGMPhysReleasePageMappingLock(pVCpu->pVMR3, &PageMapLock);
2236
2237	DISSTATE Dis;
2238	rcStrict = DISInstrWithPrefetchedBytes((uintptr_t)pVCpu->cpum.GstCtx.Pc.u64, DISCPUMODE_ARMV8_A64, 0 /fFilter - none /,
2239	&u32Instr, sizeof(u32Instr), NULL, NULL, &Dis, NULL);
2240	if (rcStrict == VINF_SUCCESS)
2241	{
2242	if ( Dis.pCurInstr->uOpcode == OP_ARMV8_A64_LDRB
2243	&& Dis.aParams[0].armv8.enmType == kDisArmv8OpParmReg
2244	&& Dis.aParams[0].armv8.Op.Reg.enmRegType == kDisOpParamArmV8RegType_Gpr_32Bit
2245	&& Dis.aParams[1].armv8.enmType == kDisArmv8OpParmAddrInGpr
2246	&& Dis.aParams[1].armv8.Op.Reg.enmRegType == kDisOpParamArmV8RegType_Gpr_64Bit
2247	&& (Dis.aParams[1].fUse & DISUSE_PRE_INDEXED))
2248	{
2249	/* The fault address is already the final address. */
2250	uint8_t bVal = 0;
2251	rcStrict = PGMPhysRead(pVM, GCPhys, &bVal, 1, PGMACCESSORIGIN_HM);
2252	Log4(("MmioExit/%u: %08RX64: READ %#RGp LB %u -> %.*Rhxs rcStrict=%Rrc\n",
2253	pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc.u64, GCPhys, sizeof(bVal), sizeof(bVal),
2254	&bVal, VBOXSTRICTRC_VAL(rcStrict) ));
2255	if (rcStrict == VINF_SUCCESS)
2256	{
2257	nemR3WinSetGReg(pVCpu, Dis.aParams[0].armv8.Op.Reg.idReg, false /f64BitReg/, false /fSignExtend/, bVal);
2258	/* Update the indexed register. */
2259	pVCpu->cpum.GstCtx.aGRegs[Dis.aParams[1].armv8.Op.Reg.idReg].x += Dis.aParams[1].armv8.u.offBase;
2260	}
2261	}
2262	/*
2263	* Seeing the following with the Windows 11/ARM TPM driver:
2264	* %fffff800e5342888 48 25 45 29 ldp w8, w9, [x10, #+0x0028]
2265	*/
2266	else if ( Dis.pCurInstr->uOpcode == OP_ARMV8_A64_LDP
2267	&& Dis.aParams[0].armv8.enmType == kDisArmv8OpParmReg
2268	&& Dis.aParams[0].armv8.Op.Reg.enmRegType == kDisOpParamArmV8RegType_Gpr_32Bit
2269	&& Dis.aParams[1].armv8.enmType == kDisArmv8OpParmReg
2270	&& Dis.aParams[1].armv8.Op.Reg.enmRegType == kDisOpParamArmV8RegType_Gpr_32Bit
2271	&& Dis.aParams[2].armv8.enmType == kDisArmv8OpParmAddrInGpr
2272	&& Dis.aParams[2].armv8.Op.Reg.enmRegType == kDisOpParamArmV8RegType_Gpr_64Bit)
2273	{
2274	/** @todo This is tricky to handle if the first register read returns something else than VINF_SUCCESS... */
2275	/* The fault address is already the final address. */
2276	uint32_t u32Val1 = 0;
2277	uint32_t u32Val2 = 0;
2278	rcStrict = PGMPhysRead(pVM, GCPhys, &u32Val1, sizeof(u32Val1), PGMACCESSORIGIN_HM);
2279	if (rcStrict == VINF_SUCCESS)
2280	rcStrict = PGMPhysRead(pVM, GCPhys + sizeof(uint32_t), &u32Val2, sizeof(u32Val2), PGMACCESSORIGIN_HM);
2281	Log4(("MmioExit/%u: %08RX64: READ %#RGp LB %u -> %.Rhxs %.Rhxs rcStrict=%Rrc\n",
2282	pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc.u64, GCPhys, 2 * sizeof(uint32_t), sizeof(u32Val1),
2283	&u32Val1, sizeof(u32Val2), &u32Val2, VBOXSTRICTRC_VAL(rcStrict) ));
2284	if (rcStrict == VINF_SUCCESS)
2285	{
2286	nemR3WinSetGReg(pVCpu, Dis.aParams[0].armv8.Op.Reg.idReg, false /f64BitReg/, false /fSignExtend/, u32Val1);
2287	nemR3WinSetGReg(pVCpu, Dis.aParams[1].armv8.Op.Reg.idReg, false /f64BitReg/, false /fSignExtend/, u32Val2);
2288	}
2289	}
2290	else
2291	AssertFailedReturn(VERR_NOT_SUPPORTED);
2292	}
2293	}
2294	}
2295
2296	if (rcStrict == VINF_SUCCESS)
2297	pVCpu->cpum.GstCtx.Pc.u64 += sizeof(uint32_t); /** @todo Why is InstructionByteCount always 0? */
2298
2299	return rcStrict;
2300	}
2301
2302
2303	/**
2304	* Deals with memory access exits (WHvRunVpExitReasonMemoryAccess).
2305	*
2306	* @returns Strict VBox status code.
2307	* @param pVM The cross context VM structure.
2308	* @param pVCpu The cross context per CPU structure.
2309	* @param pExit The VM exit information to handle.
2310	* @sa nemHCWinHandleMessageMemory
2311	*/
2312	NEM_TMPL_STATIC VBOXSTRICTRC
2313	nemR3WinHandleExitHypercall(PVMCC pVM, PVMCPUCC pVCpu, MY_WHV_RUN_VP_EXIT_CONTEXT const *pExit)
2314	{
2315	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
2316
2317	/** @todo Raise exception to EL1 if PSCI not configured. */
2318	/** @todo Need a generic mechanism here to pass this to, GIM maybe?. */
2319	uint32_t uFunId = pExit->Hypercall.Immediate;
2320	bool fHvc64 = RT_BOOL(uFunId & ARM_SMCCC_FUNC_ID_64BIT); RT_NOREF(fHvc64);
2321	uint32_t uEntity = ARM_SMCCC_FUNC_ID_ENTITY_GET(uFunId);
2322	uint32_t uFunNum = ARM_SMCCC_FUNC_ID_NUM_GET(uFunId);
2323	if (uEntity == ARM_SMCCC_FUNC_ID_ENTITY_STD_SEC_SERVICE)
2324	{
2325	switch (uFunNum)
2326	{
2327	case ARM_PSCI_FUNC_ID_PSCI_VERSION:
2328	nemR3WinSetGReg(pVCpu, ARMV8_A64_REG_X0, false /f64BitReg/, false /fSignExtend/, ARM_PSCI_FUNC_ID_PSCI_VERSION_SET(1, 2));
2329	break;
2330	case ARM_PSCI_FUNC_ID_SYSTEM_OFF:
2331	rcStrict = VMR3PowerOff(pVM->pUVM);
2332	break;
2333	case ARM_PSCI_FUNC_ID_SYSTEM_RESET:
2334	case ARM_PSCI_FUNC_ID_SYSTEM_RESET2:
2335	{
2336	bool fHaltOnReset;
2337	int rc = CFGMR3QueryBool(CFGMR3GetChild(CFGMR3GetRoot(pVM), "PDM"), "HaltOnReset", &fHaltOnReset);
2338	if (RT_SUCCESS(rc) && fHaltOnReset)
2339	{
2340	Log(("nemHCLnxHandleExitHypercall: Halt On Reset!\n"));
2341	rcStrict = VINF_EM_HALT;
2342	}
2343	else
2344	{
2345	/** @todo pVM->pdm.s.fResetFlags = fFlags; */
2346	VM_FF_SET(pVM, VM_FF_RESET);
2347	rcStrict = VINF_EM_RESET;
2348	}
2349	break;
2350	}
2351	case ARM_PSCI_FUNC_ID_CPU_ON:
2352	{
2353	uint64_t u64TgtCpu = pExit->Hypercall.X[1];
2354	RTGCPHYS GCPhysExecAddr = pExit->Hypercall.X[2];
2355	uint64_t u64CtxId = pExit->Hypercall.X[3];
2356	VMMR3CpuOn(pVM, u64TgtCpu & 0xff, GCPhysExecAddr, u64CtxId);
2357	nemR3WinSetGReg(pVCpu, ARMV8_A64_REG_X0, true /f64BitReg/, false /fSignExtend/, ARM_PSCI_STS_SUCCESS);
2358	break;
2359	}
2360	case ARM_PSCI_FUNC_ID_PSCI_FEATURES:
2361	{
2362	uint32_t u32FunNum = (uint32_t)pExit->Hypercall.X[1];
2363	switch (u32FunNum)
2364	{
2365	case ARM_PSCI_FUNC_ID_PSCI_VERSION:
2366	case ARM_PSCI_FUNC_ID_SYSTEM_OFF:
2367	case ARM_PSCI_FUNC_ID_SYSTEM_RESET:
2368	case ARM_PSCI_FUNC_ID_SYSTEM_RESET2:
2369	case ARM_PSCI_FUNC_ID_CPU_ON:
2370	nemR3WinSetGReg(pVCpu, ARMV8_A64_REG_X0,
2371	false /f64BitReg/, false /fSignExtend/,
2372	(uint64_t)ARM_PSCI_STS_SUCCESS);
2373	break;
2374	default:
2375	nemR3WinSetGReg(pVCpu, ARMV8_A64_REG_X0,
2376	false /f64BitReg/, false /fSignExtend/,
2377	(uint64_t)ARM_PSCI_STS_NOT_SUPPORTED);
2378	}
2379	break;
2380	}
2381	default:
2382	nemR3WinSetGReg(pVCpu, ARMV8_A64_REG_X0, false /f64BitReg/, false /fSignExtend/, (uint64_t)ARM_PSCI_STS_NOT_SUPPORTED);
2383	}
2384	}
2385	else
2386	nemR3WinSetGReg(pVCpu, ARMV8_A64_REG_X0, false /f64BitReg/, false /fSignExtend/, (uint64_t)ARM_PSCI_STS_NOT_SUPPORTED);
2387
2388	/** @todo What to do if immediate is != 0? */
2389
2390	if (rcStrict == VINF_SUCCESS)
2391	pVCpu->cpum.GstCtx.Pc.u64 += sizeof(uint32_t);
2392
2393	return rcStrict;
2394	}
2395
2396
2397	/**
2398	* Deals with MSR access exits (WHvRunVpExitReasonUnrecoverableException).
2399	*
2400	* @returns Strict VBox status code.
2401	* @param pVM The cross context VM structure.
2402	* @param pVCpu The cross context per CPU structure.
2403	* @param pExit The VM exit information to handle.
2404	* @sa nemHCWinHandleMessageUnrecoverableException
2405	*/
2406	NEM_TMPL_STATIC VBOXSTRICTRC nemR3WinHandleExitUnrecoverableException(PVMCC pVM, PVMCPUCC pVCpu, MY_WHV_RUN_VP_EXIT_CONTEXT const *pExit)
2407	{
2408	#if 0
2409	/*
2410	* Just copy the state we've got and handle it in the loop for now.
2411	*/
2412	nemR3WinCopyStateFromX64Header(pVCpu, &pExit->VpContext);
2413	Log(("TripleExit/%u: %04x:%08RX64/%s: RFL=%#RX64 -> VINF_EM_TRIPLE_FAULT\n", pVCpu->idCpu, pExit->VpContext.Cs.Selector,
2414	pExit->VpContext.Rip, nemR3WinExecStateToLogStr(&pExit->VpContext), pExit->VpContext.Rflags));
2415	RT_NOREF_PV(pVM);
2416	return VINF_EM_TRIPLE_FAULT;
2417	#else
2418	/*
2419	* Let IEM decide whether this is really it.
2420	*/
2421	EMHistoryAddExit(pVCpu, EMEXIT_MAKE_FT(EMEXIT_F_KIND_NEM, NEMEXITTYPE_UNRECOVERABLE_EXCEPTION),
2422	pExit->UnrecoverableException.Header.Pc, ASMReadTSC());
2423	nemR3WinCopyStateFromArmHeader(pVCpu, &pExit->UnrecoverableException.Header);
2424	AssertReleaseFailed();
2425	RT_NOREF_PV(pVM);
2426	return VINF_SUCCESS;
2427	#endif
2428	}
2429
2430
2431	/**
2432	* Handles VM exits.
2433	*
2434	* @returns Strict VBox status code.
2435	* @param pVM The cross context VM structure.
2436	* @param pVCpu The cross context per CPU structure.
2437	* @param pExit The VM exit information to handle.
2438	* @sa nemHCWinHandleMessage
2439	*/
2440	NEM_TMPL_STATIC VBOXSTRICTRC nemR3WinHandleExit(PVMCC pVM, PVMCPUCC pVCpu, MY_WHV_RUN_VP_EXIT_CONTEXT const *pExit)
2441	{
2442	#ifdef LOG_ENABLED
2443	if (LogIs3Enabled())
2444	{
2445	int rc = nemHCWinCopyStateFromHyperV(pVM, pVCpu, CPUMCTX_EXTRN_ALL);
2446	AssertRCReturn(rc, rc);
2447
2448	nemR3WinLogState(pVM, pVCpu);
2449	}
2450	#endif
2451
2452	switch (pExit->ExitReason)
2453	{
2454	case WHvRunVpExitReasonUnmappedGpa:
2455	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatExitMemUnmapped);
2456	return nemR3WinHandleExitMemory(pVM, pVCpu, pExit);
2457
2458	case WHvRunVpExitReasonCanceled:
2459	Log4(("CanceledExit/%u\n", pVCpu->idCpu));
2460	return VINF_SUCCESS;
2461
2462	case WHvRunVpExitReasonHypercall:
2463	return nemR3WinHandleExitHypercall(pVM, pVCpu, pExit);
2464
2465	case 0x8001000c: /* WHvRunVpExitReasonArm64Reset */
2466	{
2467	if (pExit->Arm64Reset.ResetType == WHV_ARM64_RESET_CONTEXT_TYPE_POWER_OFF)
2468	return VMR3PowerOff(pVM->pUVM);
2469	else if (pExit->Arm64Reset.ResetType == WHV_ARM64_RESET_CONTEXT_TYPE_RESET)
2470	{
2471	VM_FF_SET(pVM, VM_FF_RESET);
2472	return VINF_EM_RESET;
2473	}
2474	else
2475	AssertLogRelFailedReturn(VERR_NEM_IPE_3);
2476	}
2477
2478	case WHvRunVpExitReasonUnrecoverableException:
2479	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatExitUnrecoverable);
2480	return nemR3WinHandleExitUnrecoverableException(pVM, pVCpu, pExit);
2481
2482	case WHvRunVpExitReasonUnsupportedFeature:
2483	case WHvRunVpExitReasonInvalidVpRegisterValue:
2484	LogRel(("Unimplemented exit:\n%.Rhxd\n", (int)sizeof(pExit), pExit));
2485	AssertLogRelMsgFailedReturn(("Unexpected exit on CPU #%u: %#x\n%.32Rhxd\n",
2486	pVCpu->idCpu, pExit->ExitReason, pExit), VERR_NEM_IPE_3);
2487
2488	/* Undesired exits: */
2489	case WHvRunVpExitReasonNone:
2490	default:
2491	LogRel(("Unknown exit:\n%.Rhxd\n", (int)sizeof(pExit), pExit));
2492	AssertLogRelMsgFailedReturn(("Unknown exit on CPU #%u: %#x!\n", pVCpu->idCpu, pExit->ExitReason), VERR_NEM_IPE_3);
2493	}
2494	}
2495
2496
2497	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu)
2498	{
2499	LogFlow(("NEM/%u: %08RX64 pstate=%#08RX64 <=\n", pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc, pVCpu->cpum.GstCtx.fPState));
2500	#ifdef LOG_ENABLED
2501	if (LogIs3Enabled())
2502	nemR3WinLogState(pVM, pVCpu);
2503	#endif
2504
2505	/*
2506	* Try switch to NEM runloop state.
2507	*/
2508	if (VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC_NEM, VMCPUSTATE_STARTED))
2509	{ /* likely */ }
2510	else
2511	{
2512	VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC_NEM, VMCPUSTATE_STARTED_EXEC_NEM_CANCELED);
2513	LogFlow(("NEM/%u: returning immediately because canceled\n", pVCpu->idCpu));
2514	return VINF_SUCCESS;
2515	}
2516
2517	/*
2518	* The run loop.
2519	*
2520	* Current approach to state updating to use the sledgehammer and sync
2521	* everything every time. This will be optimized later.
2522	*/
2523	const bool fSingleStepping = DBGFIsStepping(pVCpu);
2524	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
2525	for (unsigned iLoop = 0;; iLoop++)
2526	{
2527	/*
2528	* Poll timers and run for a bit.
2529	*
2530	* With the VID approach (ring-0 or ring-3) we can specify a timeout here,
2531	* so we take the time of the next timer event and uses that as a deadline.
2532	* The rounding heuristics are "tuned" so that rhel5 (1K timer) will boot fine.
2533	*/
2534	/** @todo See if we cannot optimize this TMTimerPollGIP by only redoing
2535	* the whole polling job when timers have changed... */
2536	uint64_t offDeltaIgnored;
2537	uint64_t const nsNextTimerEvt = TMTimerPollGIP(pVM, pVCpu, &offDeltaIgnored); NOREF(nsNextTimerEvt);
2538	if ( !VM_FF_IS_ANY_SET(pVM, VM_FF_EMT_RENDEZVOUS \| VM_FF_TM_VIRTUAL_SYNC)
2539	&& !VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_HM_TO_R3_MASK))
2540	{
2541	if (VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC_NEM_WAIT, VMCPUSTATE_STARTED_EXEC_NEM))
2542	{
2543	/* Ensure that Hyper-V has the whole state. */
2544	int rc2 = nemHCWinCopyStateToHyperV(pVM, pVCpu);
2545	AssertRCReturn(rc2, rc2);
2546
2547	#ifdef LOG_ENABLED
2548	if (LogIsFlowEnabled())
2549	{
2550	static const WHV_REGISTER_NAME s_aNames[2] = { WHvArm64RegisterPc, WHvArm64RegisterPstate };
2551	WHV_REGISTER_VALUE aRegs[RT_ELEMENTS(s_aNames)] = { { { {0, 0} } } };
2552	WHvGetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, s_aNames, RT_ELEMENTS(s_aNames), aRegs);
2553	LogFlow(("NEM/%u: Entry @ %08RX64 pstate=%#RX64\n", pVCpu->idCpu, aRegs[0].Reg64, aRegs[1].Reg64));
2554	}
2555	#endif
2556
2557	MY_WHV_RUN_VP_EXIT_CONTEXT ExitReason = {0};
2558	TMNotifyStartOfExecution(pVM, pVCpu);
2559
2560	HRESULT hrc = WHvRunVirtualProcessor(pVM->nem.s.hPartition, pVCpu->idCpu, &ExitReason, sizeof(ExitReason));
2561
2562	VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC_NEM, VMCPUSTATE_STARTED_EXEC_NEM_WAIT);
2563	TMNotifyEndOfExecution(pVM, pVCpu, ASMReadTSC());
2564	#ifdef LOG_ENABLED
2565	if (LogIsFlowEnabled())
2566	{
2567	static const WHV_REGISTER_NAME s_aNames[2] = { WHvArm64RegisterPc, WHvArm64RegisterPstate };
2568	WHV_REGISTER_VALUE aRegs[RT_ELEMENTS(s_aNames)] = { { { {0, 0} } } };
2569	WHvGetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, s_aNames, RT_ELEMENTS(s_aNames), aRegs);
2570	LogFlow(("NEM/%u: Exit @ %08RX64 pstate=%#RX64 Reason=%#x\n",
2571	pVCpu->idCpu, aRegs[0].Reg64, aRegs[1].Reg64, ExitReason.ExitReason));
2572	}
2573	#endif
2574	if (SUCCEEDED(hrc))
2575	{
2576	/*
2577	* Deal with the message.
2578	*/
2579	rcStrict = nemR3WinHandleExit(pVM, pVCpu, &ExitReason);
2580	if (rcStrict == VINF_SUCCESS)
2581	{ /* hopefully likely */ }
2582	else
2583	{
2584	LogFlow(("NEM/%u: breaking: nemR3WinHandleExit -> %Rrc\n", pVCpu->idCpu, VBOXSTRICTRC_VAL(rcStrict) ));
2585	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnStatus);
2586	break;
2587	}
2588	}
2589	else
2590	AssertLogRelMsgFailedReturn(("WHvRunVirtualProcessor failed for CPU #%u: %#x (%u)\n",
2591	pVCpu->idCpu, hrc, GetLastError()),
2592	VERR_NEM_IPE_0);
2593
2594	/*
2595	* If no relevant FFs are pending, loop.
2596	*/
2597	if ( !VM_FF_IS_ANY_SET( pVM, !fSingleStepping ? VM_FF_HP_R0_PRE_HM_MASK : VM_FF_HP_R0_PRE_HM_STEP_MASK)
2598	&& !VMCPU_FF_IS_ANY_SET(pVCpu, !fSingleStepping ? VMCPU_FF_HP_R0_PRE_HM_MASK : VMCPU_FF_HP_R0_PRE_HM_STEP_MASK) )
2599	continue;
2600
2601	/** @todo Try handle pending flags, not just return to EM loops. Take care
2602	* not to set important RCs here unless we've handled a message. */
2603	LogFlow(("NEM/%u: breaking: pending FF (%#x / %#RX64)\n",
2604	pVCpu->idCpu, pVM->fGlobalForcedActions, (uint64_t)pVCpu->fLocalForcedActions));
2605	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnFFPost);
2606	}
2607	else
2608	{
2609	LogFlow(("NEM/%u: breaking: canceled %d (pre exec)\n", pVCpu->idCpu, VMCPU_GET_STATE(pVCpu) ));
2610	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnCancel);
2611	}
2612	}
2613	else
2614	{
2615	LogFlow(("NEM/%u: breaking: pending FF (pre exec)\n", pVCpu->idCpu));
2616	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnFFPre);
2617	}
2618	break;
2619	} /* the run loop */
2620
2621
2622	/*
2623	* If the CPU is running, make sure to stop it before we try sync back the
2624	* state and return to EM. We don't sync back the whole state if we can help it.
2625	*/
2626	if (!VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED, VMCPUSTATE_STARTED_EXEC_NEM))
2627	VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED, VMCPUSTATE_STARTED_EXEC_NEM_CANCELED);
2628
2629	if (pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_ALL)
2630	{
2631	/* Try anticipate what we might need. */
2632	uint64_t fImport = IEM_CPUMCTX_EXTRN_MUST_MASK;
2633	if ( (rcStrict >= VINF_EM_FIRST && rcStrict <= VINF_EM_LAST)
2634	\|\| RT_FAILURE(rcStrict))
2635	fImport = CPUMCTX_EXTRN_ALL;
2636	else if (VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_INTERRUPT_IRQ \| VMCPU_FF_INTERRUPT_FIQ))
2637	fImport \|= IEM_CPUMCTX_EXTRN_XCPT_MASK;
2638
2639	if (pVCpu->cpum.GstCtx.fExtrn & fImport)
2640	{
2641	int rc2 = nemHCWinCopyStateFromHyperV(pVM, pVCpu, fImport);
2642	if (RT_SUCCESS(rc2))
2643	pVCpu->cpum.GstCtx.fExtrn &= ~fImport;
2644	else if (RT_SUCCESS(rcStrict))
2645	rcStrict = rc2;
2646	if (!(pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_ALL))
2647	pVCpu->cpum.GstCtx.fExtrn = 0;
2648	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatImportOnReturn);
2649	}
2650	else
2651	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatImportOnReturnSkipped);
2652	}
2653	else
2654	{
2655	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatImportOnReturnSkipped);
2656	pVCpu->cpum.GstCtx.fExtrn = 0;
2657	}
2658
2659	#if 0
2660	UINT32 cbWritten;
2661	WHV_ARM64_LOCAL_INTERRUPT_CONTROLLER_STATE IntrState;
2662	HRESULT hrc = WHvGetVirtualProcessorState(pVM->nem.s.hPartition, pVCpu->idCpu, WHvVirtualProcessorStateTypeInterruptControllerState2,
2663	&IntrState, sizeof(IntrState), &cbWritten);
2664	AssertLogRelMsgReturn(SUCCEEDED(hrc),
2665	("WHvGetVirtualProcessorState(%p, %u,WHvVirtualProcessorStateTypeInterruptControllerState2,) -> %Rhrc (Last=%#x/%u)\n",
2666	pVM->nem.s.hPartition, pVCpu->idCpu, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
2667	, VERR_NEM_GET_REGISTERS_FAILED);
2668	LogFlowFunc(("IntrState: cbWritten=%u\n"));
2669	for (uint32_t i = 0; i < RT_ELEMENTS(IntrState.BankedInterruptState); i++)
2670	{
2671	WHV_ARM64_INTERRUPT_STATE *pState = &IntrState.BankedInterruptState[i];
2672	LogFlowFunc(("IntrState: Intr %u:\n"
2673	" Enabled=%RTbool\n"
2674	" EdgeTriggered=%RTbool\n"
2675	" Asserted=%RTbool\n"
2676	" SetPending=%RTbool\n"
2677	" Active=%RTbool\n"
2678	" Direct=%RTbool\n"
2679	" GicrIpriorityrConfigured=%u\n"
2680	" GicrIpriorityrActive=%u\n",
2681	i, pState->Enabled, pState->EdgeTriggered, pState->Asserted, pState->SetPending, pState->Active, pState->Direct,
2682	pState->GicrIpriorityrConfigured, pState->GicrIpriorityrActive));
2683	}
2684	#endif
2685
2686	LogFlow(("NEM/%u: %08RX64 pstate=%#08RX64 => %Rrc\n", pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc.u64,
2687	pVCpu->cpum.GstCtx.fPState, VBOXSTRICTRC_VAL(rcStrict) ));
2688	return rcStrict;
2689	}
2690
2691
2692	VMMR3_INT_DECL(bool) NEMR3CanExecuteGuest(PVM pVM, PVMCPU pVCpu)
2693	{
2694	Assert(VM_IS_NEM_ENABLED(pVM));
2695	RT_NOREF(pVM, pVCpu);
2696	return true;
2697	}
2698
2699
2700	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable)
2701	{
2702	NOREF(pVM); NOREF(pVCpu); NOREF(fEnable);
2703	return false;
2704	}
2705
2706
2707	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags)
2708	{
2709	Log8(("nemR3NativeNotifyFF: canceling %u\n", pVCpu->idCpu));
2710	HRESULT hrc = WHvCancelRunVirtualProcessor(pVM->nem.s.hPartition, pVCpu->idCpu, 0);
2711	AssertMsg(SUCCEEDED(hrc), ("WHvCancelRunVirtualProcessor -> hrc=%Rhrc\n", hrc));
2712	RT_NOREF_PV(hrc);
2713	RT_NOREF_PV(fFlags);
2714	}
2715
2716
2717	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop)
2718	{
2719	RT_NOREF(pVM, fUseDebugLoop);
2720	return false;
2721	}
2722
2723
2724	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop)
2725	{
2726	RT_NOREF(pVM, pVCpu, fUseDebugLoop);
2727	return false;
2728	}
2729
2730
2731	DECLINLINE(int) nemR3NativeGCPhys2R3PtrReadOnly(PVM pVM, RTGCPHYS GCPhys, const void **ppv)
2732	{
2733	PGMPAGEMAPLOCK Lock;
2734	int rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, ppv, &Lock);
2735	if (RT_SUCCESS(rc))
2736	PGMPhysReleasePageMappingLock(pVM, &Lock);
2737	return rc;
2738	}
2739
2740
2741	DECLINLINE(int) nemR3NativeGCPhys2R3PtrWriteable(PVM pVM, RTGCPHYS GCPhys, void **ppv)
2742	{
2743	PGMPAGEMAPLOCK Lock;
2744	int rc = PGMPhysGCPhys2CCPtr(pVM, GCPhys, ppv, &Lock);
2745	if (RT_SUCCESS(rc))
2746	PGMPhysReleasePageMappingLock(pVM, &Lock);
2747	return rc;
2748	}
2749
2750
2751	VMMR3_INT_DECL(int) NEMR3NotifyPhysRamRegister(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvR3,
2752	uint8_t pu2State, uint32_t puNemRange)
2753	{
2754	Log5(("NEMR3NotifyPhysRamRegister: %RGp LB %RGp, pvR3=%p pu2State=%p (%d) puNemRange=%p (%d)\n",
2755	GCPhys, cb, pvR3, pu2State, pu2State, puNemRange, *puNemRange));
2756
2757	*pu2State = UINT8_MAX;
2758	RT_NOREF(puNemRange);
2759
2760	if (pvR3)
2761	{
2762	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2763	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvR3, GCPhys, cb,
2764	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagWrite \| WHvMapGpaRangeFlagExecute);
2765	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2766	if (SUCCEEDED(hrc))
2767	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
2768	else
2769	{
2770	LogRel(("NEMR3NotifyPhysRamRegister: GCPhys=%RGp LB %RGp pvR3=%p hrc=%Rhrc (%#x) Last=%#x/%u\n",
2771	GCPhys, cb, pvR3, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2772	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2773	return VERR_NEM_MAP_PAGES_FAILED;
2774	}
2775	}
2776	return VINF_SUCCESS;
2777	}
2778
2779
2780	VMMR3_INT_DECL(bool) NEMR3IsMmio2DirtyPageTrackingSupported(PVM pVM)
2781	{
2782	RT_NOREF(pVM);
2783	return g_pfnWHvQueryGpaRangeDirtyBitmap != NULL;
2784	}
2785
2786
2787	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMapEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags,
2788	void pvRam, void pvMmio2, uint8_t pu2State, uint32_t puNemRange)
2789	{
2790	Log5(("NEMR3NotifyPhysMmioExMapEarly: %RGp LB %RGp fFlags=%#x pvRam=%p pvMmio2=%p pu2State=%p (%d) puNemRange=%p (%#x)\n",
2791	GCPhys, cb, fFlags, pvRam, pvMmio2, pu2State, pu2State, puNemRange, puNemRange ? puNemRange : UINT32_MAX));
2792	RT_NOREF(puNemRange);
2793
2794	/*
2795	* Unmap the RAM we're replacing.
2796	*/
2797	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_REPLACE)
2798	{
2799	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRange, a);
2800	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhys, cb);
2801	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRange, a);
2802	if (SUCCEEDED(hrc))
2803	{ /* likely */ }
2804	else if (pvMmio2)
2805	LogRel(("NEMR3NotifyPhysMmioExMapEarly: GCPhys=%RGp LB %RGp fFlags=%#x: Unmap -> hrc=%Rhrc (%#x) Last=%#x/%u (ignored)\n",
2806	GCPhys, cb, fFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2807	else
2808	{
2809	LogRel(("NEMR3NotifyPhysMmioExMapEarly: GCPhys=%RGp LB %RGp fFlags=%#x: Unmap -> hrc=%Rhrc (%#x) Last=%#x/%u\n",
2810	GCPhys, cb, fFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2811	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
2812	return VERR_NEM_UNMAP_PAGES_FAILED;
2813	}
2814	}
2815
2816	/*
2817	* Map MMIO2 if any.
2818	*/
2819	if (pvMmio2)
2820	{
2821	Assert(fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2);
2822	WHV_MAP_GPA_RANGE_FLAGS fWHvFlags = WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagWrite \| WHvMapGpaRangeFlagExecute;
2823	if ((fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_TRACK_DIRTY_PAGES) && g_pfnWHvQueryGpaRangeDirtyBitmap)
2824	fWHvFlags \|= WHvMapGpaRangeFlagTrackDirtyPages;
2825	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2826	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvMmio2, GCPhys, cb, fWHvFlags);
2827	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2828	if (SUCCEEDED(hrc))
2829	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
2830	else
2831	{
2832	LogRel(("NEMR3NotifyPhysMmioExMapEarly: GCPhys=%RGp LB %RGp fFlags=%#x pvMmio2=%p fWHvFlags=%#x: Map -> hrc=%Rhrc (%#x) Last=%#x/%u\n",
2833	GCPhys, cb, fFlags, pvMmio2, fWHvFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2834	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2835	return VERR_NEM_MAP_PAGES_FAILED;
2836	}
2837	}
2838	else
2839	{
2840	Assert(!(fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2));
2841	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
2842	}
2843	RT_NOREF(pvRam);
2844	return VINF_SUCCESS;
2845	}
2846
2847
2848	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMapLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags,
2849	void pvRam, void pvMmio2, uint32_t *puNemRange)
2850	{
2851	RT_NOREF(pVM, GCPhys, cb, fFlags, pvRam, pvMmio2, puNemRange);
2852	return VINF_SUCCESS;
2853	}
2854
2855
2856	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExUnmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags, void *pvRam,
2857	void pvMmio2, uint8_t pu2State, uint32_t *puNemRange)
2858	{
2859	int rc = VINF_SUCCESS;
2860	Log5(("NEMR3NotifyPhysMmioExUnmap: %RGp LB %RGp fFlags=%#x pvRam=%p pvMmio2=%p pu2State=%p uNemRange=%#x (%#x)\n",
2861	GCPhys, cb, fFlags, pvRam, pvMmio2, pu2State, puNemRange, *puNemRange));
2862
2863	/*
2864	* Unmap the MMIO2 pages.
2865	*/
2866	/** @todo If we implement aliasing (MMIO2 page aliased into MMIO range),
2867	* we may have more stuff to unmap even in case of pure MMIO... */
2868	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2)
2869	{
2870	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRange, a);
2871	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhys, cb);
2872	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRange, a);
2873	if (FAILED(hrc))
2874	{
2875	LogRel2(("NEMR3NotifyPhysMmioExUnmap: GCPhys=%RGp LB %RGp fFlags=%#x: Unmap -> hrc=%Rhrc (%#x) Last=%#x/%u (ignored)\n",
2876	GCPhys, cb, fFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2877	rc = VERR_NEM_UNMAP_PAGES_FAILED;
2878	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
2879	}
2880	}
2881
2882	/*
2883	* Restore the RAM we replaced.
2884	*/
2885	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_REPLACE)
2886	{
2887	AssertPtr(pvRam);
2888	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2889	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvRam, GCPhys, cb,
2890	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagWrite \| WHvMapGpaRangeFlagExecute);
2891	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2892	if (SUCCEEDED(hrc))
2893	{ /* likely */ }
2894	else
2895	{
2896	LogRel(("NEMR3NotifyPhysMmioExUnmap: GCPhys=%RGp LB %RGp pvMmio2=%p hrc=%Rhrc (%#x) Last=%#x/%u\n",
2897	GCPhys, cb, pvMmio2, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2898	rc = VERR_NEM_MAP_PAGES_FAILED;
2899	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2900	}
2901	if (pu2State)
2902	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
2903	}
2904	/* Mark the pages as unmapped if relevant. */
2905	else if (pu2State)
2906	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
2907
2908	RT_NOREF(pvMmio2, puNemRange);
2909	return rc;
2910	}
2911
2912
2913	VMMR3_INT_DECL(int) NEMR3PhysMmio2QueryAndResetDirtyBitmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t uNemRange,
2914	void *pvBitmap, size_t cbBitmap)
2915	{
2916	Assert(VM_IS_NEM_ENABLED(pVM));
2917	AssertReturn(g_pfnWHvQueryGpaRangeDirtyBitmap, VERR_INTERNAL_ERROR_2);
2918	Assert(cbBitmap == (uint32_t)cbBitmap);
2919	RT_NOREF(uNemRange);
2920
2921	/* This is being profiled by PGM, see /PGM/Mmio2QueryAndResetDirtyBitmap. */
2922	HRESULT hrc = WHvQueryGpaRangeDirtyBitmap(pVM->nem.s.hPartition, GCPhys, cb, (UINT64 *)pvBitmap, (uint32_t)cbBitmap);
2923	if (SUCCEEDED(hrc))
2924	return VINF_SUCCESS;
2925
2926	AssertLogRelMsgFailed(("GCPhys=%RGp LB %RGp pvBitmap=%p LB %#zx hrc=%Rhrc (%#x) Last=%#x/%u\n",
2927	GCPhys, cb, pvBitmap, cbBitmap, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2928	return VERR_NEM_QUERY_DIRTY_BITMAP_FAILED;
2929	}
2930
2931
2932	VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvPages, uint32_t fFlags,
2933	uint8_t pu2State, uint32_t puNemRange)
2934	{
2935	Log5(("nemR3NativeNotifyPhysRomRegisterEarly: %RGp LB %RGp pvPages=%p fFlags=%#x\n", GCPhys, cb, pvPages, fFlags));
2936	*pu2State = UINT8_MAX;
2937	*puNemRange = 0;
2938
2939	#if 0 /* Let's not do this after all. We'll protection change notifications for each page and if not we'll map them lazily. */
2940	RTGCPHYS const cPages = cb >> X86_PAGE_SHIFT;
2941	for (RTGCPHYS iPage = 0; iPage < cPages; iPage++, GCPhys += X86_PAGE_SIZE)
2942	{
2943	const void *pvPage;
2944	int rc = nemR3NativeGCPhys2R3PtrReadOnly(pVM, GCPhys, &pvPage);
2945	if (RT_SUCCESS(rc))
2946	{
2947	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, (void *)pvPage, GCPhys, X86_PAGE_SIZE,
2948	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute);
2949	if (SUCCEEDED(hrc))
2950	{ /* likely */ }
2951	else
2952	{
2953	LogRel(("nemR3NativeNotifyPhysRomRegisterEarly: GCPhys=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
2954	GCPhys, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2955	return VERR_NEM_INIT_FAILED;
2956	}
2957	}
2958	else
2959	{
2960	LogRel(("nemR3NativeNotifyPhysRomRegisterEarly: GCPhys=%RGp rc=%Rrc\n", GCPhys, rc));
2961	return rc;
2962	}
2963	}
2964	RT_NOREF_PV(fFlags);
2965	#else
2966	RT_NOREF(pVM, GCPhys, cb, pvPages, fFlags);
2967	#endif
2968	return VINF_SUCCESS;
2969	}
2970
2971
2972	VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvPages,
2973	uint32_t fFlags, uint8_t pu2State, uint32_t puNemRange)
2974	{
2975	Log5(("nemR3NativeNotifyPhysRomRegisterLate: %RGp LB %RGp pvPages=%p fFlags=%#x pu2State=%p (%d) puNemRange=%p (%#x)\n",
2976	GCPhys, cb, pvPages, fFlags, pu2State, pu2State, puNemRange, puNemRange));
2977	*pu2State = UINT8_MAX;
2978
2979	/*
2980	* (Re-)map readonly.
2981	*/
2982	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
2983	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2984	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvPages, GCPhys, cb, WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute);
2985	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2986	if (SUCCEEDED(hrc))
2987	*pu2State = NEM_WIN_PAGE_STATE_READABLE;
2988	else
2989	{
2990	LogRel(("nemR3NativeNotifyPhysRomRegisterEarly: GCPhys=%RGp LB %RGp pvPages=%p fFlags=%#x hrc=%Rhrc (%#x) Last=%#x/%u\n",
2991	GCPhys, cb, pvPages, fFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2992	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2993	return VERR_NEM_MAP_PAGES_FAILED;
2994	}
2995	RT_NOREF(fFlags, puNemRange);
2996	return VINF_SUCCESS;
2997	}
2998
2999	VMMR3_INT_DECL(void) NEMR3NotifySetA20(PVMCPU pVCpu, bool fEnabled)
3000	{
3001	Log(("nemR3NativeNotifySetA20: fEnabled=%RTbool\n", fEnabled));
3002	Assert(VM_IS_NEM_ENABLED(pVCpu->CTX_SUFF(pVM)));
3003	RT_NOREF(pVCpu, fEnabled);
3004	}
3005
3006
3007	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb)
3008	{
3009	Log5(("nemHCNativeNotifyHandlerPhysicalRegister: %RGp LB %RGp enmKind=%d\n", GCPhys, cb, enmKind));
3010	NOREF(pVM); NOREF(enmKind); NOREF(GCPhys); NOREF(cb);
3011	}
3012
3013
3014	VMM_INT_DECL(void) NEMHCNotifyHandlerPhysicalDeregister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb,
3015	RTR3PTR pvMemR3, uint8_t *pu2State)
3016	{
3017	Log5(("NEMHCNotifyHandlerPhysicalDeregister: %RGp LB %RGp enmKind=%d pvMemR3=%p pu2State=%p (%d)\n",
3018	GCPhys, cb, enmKind, pvMemR3, pu2State, *pu2State));
3019
3020	*pu2State = UINT8_MAX;
3021	if (pvMemR3)
3022	{
3023	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
3024	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvMemR3, GCPhys, cb,
3025	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute \| WHvMapGpaRangeFlagWrite);
3026	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
3027	if (SUCCEEDED(hrc))
3028	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
3029	else
3030	AssertLogRelMsgFailed(("NEMHCNotifyHandlerPhysicalDeregister: WHvMapGpaRange(,%p,%RGp,%RGp,) -> %Rhrc\n",
3031	pvMemR3, GCPhys, cb, hrc));
3032	}
3033	RT_NOREF(enmKind);
3034	}
3035
3036
3037	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
3038	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM)
3039	{
3040	Log5(("nemHCNativeNotifyHandlerPhysicalModify: %RGp LB %RGp -> %RGp enmKind=%d fRestoreAsRAM=%d\n",
3041	GCPhysOld, cb, GCPhysNew, enmKind, fRestoreAsRAM));
3042	NOREF(pVM); NOREF(enmKind); NOREF(GCPhysOld); NOREF(GCPhysNew); NOREF(cb); NOREF(fRestoreAsRAM);
3043	}
3044
3045
3046	/**
3047	* Worker that maps pages into Hyper-V.
3048	*
3049	* This is used by the PGM physical page notifications as well as the memory
3050	* access VMEXIT handlers.
3051	*
3052	* @returns VBox status code.
3053	* @param pVM The cross context VM structure.
3054	* @param pVCpu The cross context virtual CPU structure of the
3055	* calling EMT.
3056	* @param GCPhysSrc The source page address.
3057	* @param GCPhysDst The hyper-V destination page. This may differ from
3058	* GCPhysSrc when A20 is disabled.
3059	* @param fPageProt NEM_PAGE_PROT_XXX.
3060	* @param pu2State Our page state (input/output).
3061	* @param fBackingChanged Set if the page backing is being changed.
3062	* @thread EMT(pVCpu)
3063	*/
3064	NEM_TMPL_STATIC int nemHCNativeSetPhysPage(PVMCC pVM, PVMCPUCC pVCpu, RTGCPHYS GCPhysSrc, RTGCPHYS GCPhysDst,
3065	uint32_t fPageProt, uint8_t *pu2State, bool fBackingChanged)
3066	{
3067	/*
3068	* Looks like we need to unmap a page before we can change the backing
3069	* or even modify the protection. This is going to be REALLY efficient.
3070	* PGM lends us two bits to keep track of the state here.
3071	*/
3072	RT_NOREF(pVCpu);
3073	uint8_t const u2OldState = *pu2State;
3074	uint8_t const u2NewState = fPageProt & NEM_PAGE_PROT_WRITE ? NEM_WIN_PAGE_STATE_WRITABLE
3075	: fPageProt & NEM_PAGE_PROT_READ ? NEM_WIN_PAGE_STATE_READABLE : NEM_WIN_PAGE_STATE_UNMAPPED;
3076	if ( fBackingChanged
3077	\|\| u2NewState != u2OldState)
3078	{
3079	if (u2OldState > NEM_WIN_PAGE_STATE_UNMAPPED)
3080	{
3081	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
3082	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhysDst, X86_PAGE_SIZE);
3083	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
3084	if (SUCCEEDED(hrc))
3085	{
3086	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
3087	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPage);
3088	uint32_t cMappedPages = ASMAtomicDecU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
3089	if (u2NewState == NEM_WIN_PAGE_STATE_UNMAPPED)
3090	{
3091	Log5(("NEM GPA unmapped/set: %RGp (was %s, cMappedPages=%u)\n",
3092	GCPhysDst, g_apszPageStates[u2OldState], cMappedPages));
3093	return VINF_SUCCESS;
3094	}
3095	}
3096	else
3097	{
3098	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
3099	LogRel(("nemHCNativeSetPhysPage/unmap: GCPhysDst=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
3100	GCPhysDst, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
3101	return VERR_NEM_INIT_FAILED;
3102	}
3103	}
3104	}
3105
3106	/*
3107	* Writeable mapping?
3108	*/
3109	if (fPageProt & NEM_PAGE_PROT_WRITE)
3110	{
3111	void *pvPage;
3112	int rc = nemR3NativeGCPhys2R3PtrWriteable(pVM, GCPhysSrc, &pvPage);
3113	if (RT_SUCCESS(rc))
3114	{
3115	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvPage, GCPhysDst, X86_PAGE_SIZE,
3116	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute \| WHvMapGpaRangeFlagWrite);
3117	if (SUCCEEDED(hrc))
3118	{
3119	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
3120	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPage);
3121	uint32_t cMappedPages = ASMAtomicIncU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
3122	Log5(("NEM GPA mapped/set: %RGp %s (was %s, cMappedPages=%u)\n",
3123	GCPhysDst, g_apszPageStates[u2NewState], g_apszPageStates[u2OldState], cMappedPages));
3124	return VINF_SUCCESS;
3125	}
3126	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
3127	LogRel(("nemHCNativeSetPhysPage/writable: GCPhysDst=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
3128	GCPhysDst, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
3129	return VERR_NEM_INIT_FAILED;
3130	}
3131	LogRel(("nemHCNativeSetPhysPage/writable: GCPhysSrc=%RGp rc=%Rrc\n", GCPhysSrc, rc));
3132	return rc;
3133	}
3134
3135	if (fPageProt & NEM_PAGE_PROT_READ)
3136	{
3137	const void *pvPage;
3138	int rc = nemR3NativeGCPhys2R3PtrReadOnly(pVM, GCPhysSrc, &pvPage);
3139	if (RT_SUCCESS(rc))
3140	{
3141	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRangePage, a);
3142	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, (void *)pvPage, GCPhysDst, X86_PAGE_SIZE,
3143	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute);
3144	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRangePage, a);
3145	if (SUCCEEDED(hrc))
3146	{
3147	*pu2State = NEM_WIN_PAGE_STATE_READABLE;
3148	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPage);
3149	uint32_t cMappedPages = ASMAtomicIncU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
3150	Log5(("NEM GPA mapped/set: %RGp %s (was %s, cMappedPages=%u)\n",
3151	GCPhysDst, g_apszPageStates[u2NewState], g_apszPageStates[u2OldState], cMappedPages));
3152	return VINF_SUCCESS;
3153	}
3154	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
3155	LogRel(("nemHCNativeSetPhysPage/readonly: GCPhysDst=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
3156	GCPhysDst, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
3157	return VERR_NEM_INIT_FAILED;
3158	}
3159	LogRel(("nemHCNativeSetPhysPage/readonly: GCPhysSrc=%RGp rc=%Rrc\n", GCPhysSrc, rc));
3160	return rc;
3161	}
3162
3163	/* We already unmapped it above. */
3164	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
3165	return VINF_SUCCESS;
3166	}
3167
3168
3169	NEM_TMPL_STATIC int nemHCJustUnmapPageFromHyperV(PVMCC pVM, RTGCPHYS GCPhysDst, uint8_t *pu2State)
3170	{
3171	if (*pu2State <= NEM_WIN_PAGE_STATE_UNMAPPED)
3172	{
3173	Log5(("nemHCJustUnmapPageFromHyperV: %RGp == unmapped\n", GCPhysDst));
3174	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
3175	return VINF_SUCCESS;
3176	}
3177
3178	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
3179	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhysDst & ~(RTGCPHYS)X86_PAGE_OFFSET_MASK, X86_PAGE_SIZE);
3180	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
3181	if (SUCCEEDED(hrc))
3182	{
3183	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPage);
3184	uint32_t cMappedPages = ASMAtomicDecU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
3185	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
3186	Log5(("nemHCJustUnmapPageFromHyperV: %RGp => unmapped (total %u)\n", GCPhysDst, cMappedPages));
3187	return VINF_SUCCESS;
3188	}
3189	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
3190	LogRel(("nemHCJustUnmapPageFromHyperV(%RGp): failed! hrc=%Rhrc (%#x) Last=%#x/%u\n",
3191	GCPhysDst, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
3192	return VERR_NEM_IPE_6;
3193	}
3194
3195
3196	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
3197	PGMPAGETYPE enmType, uint8_t *pu2State)
3198	{
3199	Log5(("nemHCNativeNotifyPhysPageAllocated: %RGp HCPhys=%RHp fPageProt=%#x enmType=%d *pu2State=%d\n",
3200	GCPhys, HCPhys, fPageProt, enmType, *pu2State));
3201	RT_NOREF_PV(HCPhys); RT_NOREF_PV(enmType);
3202
3203	int rc;
3204	RT_NOREF_PV(fPageProt);
3205	rc = nemHCJustUnmapPageFromHyperV(pVM, GCPhys, pu2State);
3206	return rc;
3207	}
3208
3209
3210	VMM_INT_DECL(void) NEMHCNotifyPhysPageProtChanged(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, RTR3PTR pvR3, uint32_t fPageProt,
3211	PGMPAGETYPE enmType, uint8_t *pu2State)
3212	{
3213	Log5(("NEMHCNotifyPhysPageProtChanged: %RGp HCPhys=%RHp fPageProt=%#x enmType=%d *pu2State=%d\n",
3214	GCPhys, HCPhys, fPageProt, enmType, *pu2State));
3215	Assert(VM_IS_NEM_ENABLED(pVM));
3216	RT_NOREF(HCPhys, enmType, pvR3);
3217
3218	RT_NOREF_PV(fPageProt);
3219	nemHCJustUnmapPageFromHyperV(pVM, GCPhys, pu2State);
3220	}
3221
3222
3223	VMM_INT_DECL(void) NEMHCNotifyPhysPageChanged(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhysPrev, RTHCPHYS HCPhysNew,
3224	RTR3PTR pvNewR3, uint32_t fPageProt, PGMPAGETYPE enmType, uint8_t *pu2State)
3225	{
3226	Log5(("nemHCNativeNotifyPhysPageChanged: %RGp HCPhys=%RHp->%RHp pvNewR3=%p fPageProt=%#x enmType=%d *pu2State=%d\n",
3227	GCPhys, HCPhysPrev, HCPhysNew, pvNewR3, fPageProt, enmType, *pu2State));
3228	Assert(VM_IS_NEM_ENABLED(pVM));
3229	RT_NOREF(HCPhysPrev, HCPhysNew, pvNewR3, enmType);
3230
3231	RT_NOREF_PV(fPageProt);
3232	nemHCJustUnmapPageFromHyperV(pVM, GCPhys, pu2State);
3233	}
3234
3235
3236	/**
3237	* Returns features supported by the NEM backend.
3238	*
3239	* @returns Flags of features supported by the native NEM backend.
3240	* @param pVM The cross context VM structure.
3241	*/
3242	VMM_INT_DECL(uint32_t) NEMHCGetFeatures(PVMCC pVM)
3243	{
3244	RT_NOREF(pVM);
3245	/** @todo Is NEM_FEAT_F_FULL_GST_EXEC always true? */
3246	return NEM_FEAT_F_NESTED_PAGING \| NEM_FEAT_F_FULL_GST_EXEC;
3247	}
3248
3249
3250	/** @page pg_nem_win_aarmv8 NEM/win - Native Execution Manager, Windows.
3251	*
3252	* Open questions:
3253	* - Why can't one read and write WHvArm64RegisterId*
3254	* - WHvArm64RegisterDbgbcr0El1 is not readable?
3255	* - Getting notified about system register reads/writes (GIC)?
3256	* - InstructionByteCount and InstructionBytes for unmapped GPA exit are zero...
3257	* - Handling of (vTimer) interrupts, how is WHvRequestInterrupt() supposed to be used?
3258	*/
3259

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/VMM/VMMR3/NEMR3Native-win-armv8.cpp@ 108368

Download in other formats: