NEMR3Native-win-armv8.cpp@ 105745

Last change on this file since 105745 was 104672, checked in by vboxsync, 6 months ago
VMM/NEM: Pretty much work in progress Hyper-V on win.arm64 experiment, bugref:10392
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 124.4 KB

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1	/* $Id: NEMR3Native-win-armv8.cpp 104672 2024-05-16 10:50:35Z 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) 2018-2023 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/vmm/nem.h>
57	#include <VBox/vmm/iem.h>
58	#include <VBox/vmm/em.h>
59	#include <VBox/vmm/apic.h>
60	#include <VBox/vmm/pdm.h>
61	#include <VBox/vmm/dbgftrace.h>
62	#include "NEMInternal.h"
63	#include <VBox/vmm/vmcc.h>
64
65	#include <iprt/ldr.h>
66	#include <iprt/path.h>
67	#include <iprt/string.h>
68	#include <iprt/system.h>
69	#include <iprt/utf16.h>
70
71	#ifndef NTDDI_WIN10_VB /* Present in W10 2004 SDK, quite possibly earlier. */
72	HRESULT WINAPI WHvQueryGpaRangeDirtyBitmap(WHV_PARTITION_HANDLE, WHV_GUEST_PHYSICAL_ADDRESS, UINT64, UINT64 *, UINT32);
73	# define WHvMapGpaRangeFlagTrackDirtyPages ((WHV_MAP_GPA_RANGE_FLAGS)0x00000008)
74	#endif
75
76
77	/*********************************************************************************************************************************
78	* Defined Constants And Macros *
79	*********************************************************************************************************************************/
80
81
82	/*********************************************************************************************************************************
83	* Global Variables *
84	*********************************************************************************************************************************/
85	/** @name APIs imported from WinHvPlatform.dll
86	* @{ */
87	static decltype(WHvGetCapability) * g_pfnWHvGetCapability;
88	static decltype(WHvCreatePartition) * g_pfnWHvCreatePartition;
89	static decltype(WHvSetupPartition) * g_pfnWHvSetupPartition;
90	static decltype(WHvDeletePartition) * g_pfnWHvDeletePartition;
91	static decltype(WHvGetPartitionProperty) * g_pfnWHvGetPartitionProperty;
92	static decltype(WHvSetPartitionProperty) * g_pfnWHvSetPartitionProperty;
93	static decltype(WHvMapGpaRange) * g_pfnWHvMapGpaRange;
94	static decltype(WHvUnmapGpaRange) * g_pfnWHvUnmapGpaRange;
95	static decltype(WHvTranslateGva) * g_pfnWHvTranslateGva;
96	static decltype(WHvQueryGpaRangeDirtyBitmap) * g_pfnWHvQueryGpaRangeDirtyBitmap;
97	static decltype(WHvCreateVirtualProcessor) * g_pfnWHvCreateVirtualProcessor;
98	static decltype(WHvDeleteVirtualProcessor) * g_pfnWHvDeleteVirtualProcessor;
99	static decltype(WHvRunVirtualProcessor) * g_pfnWHvRunVirtualProcessor;
100	static decltype(WHvCancelRunVirtualProcessor) * g_pfnWHvCancelRunVirtualProcessor;
101	static decltype(WHvGetVirtualProcessorRegisters) * g_pfnWHvGetVirtualProcessorRegisters;
102	static decltype(WHvSetVirtualProcessorRegisters) * g_pfnWHvSetVirtualProcessorRegisters;
103	/** @} */
104
105	/** The Windows build number. */
106	static uint32_t g_uBuildNo = 17134;
107
108
109
110	/**
111	* Import instructions.
112	*/
113	static const struct
114	{
115	uint8_t idxDll; /*< 0 for WinHvPlatform.dll, 1 for vid.dll. /
116	bool fOptional; /*< Set if import is optional. /
117	PFNRT ppfn; /< The function pointer variable. /
118	const char pszName; /< The function name. /
119	} g_aImports[] =
120	{
121	#define NEM_WIN_IMPORT(a_idxDll, a_fOptional, a_Name) { (a_idxDll), (a_fOptional), (PFNRT *)&RT_CONCAT(g_pfn,a_Name), #a_Name }
122	NEM_WIN_IMPORT(0, false, WHvGetCapability),
123	NEM_WIN_IMPORT(0, false, WHvCreatePartition),
124	NEM_WIN_IMPORT(0, false, WHvSetupPartition),
125	NEM_WIN_IMPORT(0, false, WHvDeletePartition),
126	NEM_WIN_IMPORT(0, false, WHvGetPartitionProperty),
127	NEM_WIN_IMPORT(0, false, WHvSetPartitionProperty),
128	NEM_WIN_IMPORT(0, false, WHvMapGpaRange),
129	NEM_WIN_IMPORT(0, false, WHvUnmapGpaRange),
130	NEM_WIN_IMPORT(0, false, WHvTranslateGva),
131	NEM_WIN_IMPORT(0, true, WHvQueryGpaRangeDirtyBitmap),
132	NEM_WIN_IMPORT(0, false, WHvCreateVirtualProcessor),
133	NEM_WIN_IMPORT(0, false, WHvDeleteVirtualProcessor),
134	NEM_WIN_IMPORT(0, false, WHvRunVirtualProcessor),
135	NEM_WIN_IMPORT(0, false, WHvCancelRunVirtualProcessor),
136	NEM_WIN_IMPORT(0, false, WHvGetVirtualProcessorRegisters),
137	NEM_WIN_IMPORT(0, false, WHvSetVirtualProcessorRegisters),
138	#undef NEM_WIN_IMPORT
139	};
140
141
142	/*
143	* Let the preprocessor alias the APIs to import variables for better autocompletion.
144	*/
145	#ifndef IN_SLICKEDIT
146	# define WHvGetCapability g_pfnWHvGetCapability
147	# define WHvCreatePartition g_pfnWHvCreatePartition
148	# define WHvSetupPartition g_pfnWHvSetupPartition
149	# define WHvDeletePartition g_pfnWHvDeletePartition
150	# define WHvGetPartitionProperty g_pfnWHvGetPartitionProperty
151	# define WHvSetPartitionProperty g_pfnWHvSetPartitionProperty
152	# define WHvMapGpaRange g_pfnWHvMapGpaRange
153	# define WHvUnmapGpaRange g_pfnWHvUnmapGpaRange
154	# define WHvTranslateGva g_pfnWHvTranslateGva
155	# define WHvQueryGpaRangeDirtyBitmap g_pfnWHvQueryGpaRangeDirtyBitmap
156	# define WHvCreateVirtualProcessor g_pfnWHvCreateVirtualProcessor
157	# define WHvDeleteVirtualProcessor g_pfnWHvDeleteVirtualProcessor
158	# define WHvRunVirtualProcessor g_pfnWHvRunVirtualProcessor
159	# define WHvGetRunExitContextSize g_pfnWHvGetRunExitContextSize
160	# define WHvCancelRunVirtualProcessor g_pfnWHvCancelRunVirtualProcessor
161	# define WHvGetVirtualProcessorRegisters g_pfnWHvGetVirtualProcessorRegisters
162	# define WHvSetVirtualProcessorRegisters g_pfnWHvSetVirtualProcessorRegisters
163
164	# define VidMessageSlotHandleAndGetNext g_pfnVidMessageSlotHandleAndGetNext
165	# define VidStartVirtualProcessor g_pfnVidStartVirtualProcessor
166	# define VidStopVirtualProcessor g_pfnVidStopVirtualProcessor
167
168	#endif
169
170	/** WHV_MEMORY_ACCESS_TYPE names */
171	static const char * const g_apszWHvMemAccesstypes[4] = { "read", "write", "exec", "!undefined!" };
172	/** NEM_WIN_PAGE_STATE_XXX names. */
173	NEM_TMPL_STATIC const char * const g_apszPageStates[4] = { "not-set", "unmapped", "readable", "writable" };
174	/** HV_INTERCEPT_ACCESS_TYPE names. */
175	static const char * const g_apszHvInterceptAccessTypes[4] = { "read", "write", "exec", "!undefined!" };
176
177
178	/*********************************************************************************************************************************
179	* Internal Functions *
180	*********************************************************************************************************************************/
181	DECLINLINE(int) nemR3NativeGCPhys2R3PtrReadOnly(PVM pVM, RTGCPHYS GCPhys, const void **ppv);
182	DECLINLINE(int) nemR3NativeGCPhys2R3PtrWriteable(PVM pVM, RTGCPHYS GCPhys, void **ppv);
183
184	NEM_TMPL_STATIC int nemHCNativeSetPhysPage(PVMCC pVM, PVMCPUCC pVCpu, RTGCPHYS GCPhysSrc, RTGCPHYS GCPhysDst,
185	uint32_t fPageProt, uint8_t *pu2State, bool fBackingChanged);
186
187	/**
188	* Worker for nemR3NativeInit that probes and load the native API.
189	*
190	* @returns VBox status code.
191	* @param fForced Whether the HMForced flag is set and we should
192	* fail if we cannot initialize.
193	* @param pErrInfo Where to always return error info.
194	*/
195	static int nemR3WinInitProbeAndLoad(bool fForced, PRTERRINFO pErrInfo)
196	{
197	/*
198	* Check that the DLL files we need are present, but without loading them.
199	* We'd like to avoid loading them unnecessarily.
200	*/
201	WCHAR wszPath[MAX_PATH + 64];
202	UINT cwcPath = GetSystemDirectoryW(wszPath, MAX_PATH);
203	if (cwcPath >= MAX_PATH \|\| cwcPath < 2)
204	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "GetSystemDirectoryW failed (%#x / %u)", cwcPath, GetLastError());
205
206	if (wszPath[cwcPath - 1] != '\\' \|\| wszPath[cwcPath - 1] != '/')
207	wszPath[cwcPath++] = '\\';
208	RTUtf16CopyAscii(&wszPath[cwcPath], RT_ELEMENTS(wszPath) - cwcPath, "WinHvPlatform.dll");
209	if (GetFileAttributesW(wszPath) == INVALID_FILE_ATTRIBUTES)
210	return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE, "The native API dll was not found (%ls)", wszPath);
211
212	/*
213	* Check that we're in a VM and that the hypervisor identifies itself as Hyper-V.
214	*/
215	/** @todo */
216
217	/** @todo would be great if we could recognize a root partition from the
218	* CPUID info, but I currently don't dare do that. */
219
220	/*
221	* Now try load the DLLs and resolve the APIs.
222	*/
223	static const char * const s_apszDllNames[1] = { "WinHvPlatform.dll" };
224	RTLDRMOD ahMods[1] = { NIL_RTLDRMOD };
225	int rc = VINF_SUCCESS;
226	for (unsigned i = 0; i < RT_ELEMENTS(s_apszDllNames); i++)
227	{
228	int rc2 = RTLdrLoadSystem(s_apszDllNames[i], true /fNoUnload/, &ahMods[i]);
229	if (RT_FAILURE(rc2))
230	{
231	if (!RTErrInfoIsSet(pErrInfo))
232	RTErrInfoSetF(pErrInfo, rc2, "Failed to load API DLL: %s: %Rrc", s_apszDllNames[i], rc2);
233	else
234	RTErrInfoAddF(pErrInfo, rc2, "; %s: %Rrc", s_apszDllNames[i], rc2);
235	ahMods[i] = NIL_RTLDRMOD;
236	rc = VERR_NEM_INIT_FAILED;
237	}
238	}
239	if (RT_SUCCESS(rc))
240	{
241	for (unsigned i = 0; i < RT_ELEMENTS(g_aImports); i++)
242	{
243	int rc2 = RTLdrGetSymbol(ahMods[g_aImports[i].idxDll], g_aImports[i].pszName, (void **)g_aImports[i].ppfn);
244	if (RT_SUCCESS(rc2))
245	{
246	if (g_aImports[i].fOptional)
247	LogRel(("NEM: info: Found optional import %s!%s.\n",
248	s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName));
249	}
250	else
251	{
252	*g_aImports[i].ppfn = NULL;
253
254	LogRel(("NEM: %s: Failed to import %s!%s: %Rrc",
255	g_aImports[i].fOptional ? "info" : fForced ? "fatal" : "error",
256	s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName, rc2));
257	if (!g_aImports[i].fOptional)
258	{
259	if (RTErrInfoIsSet(pErrInfo))
260	RTErrInfoAddF(pErrInfo, rc2, ", %s!%s",
261	s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName);
262	else
263	rc = RTErrInfoSetF(pErrInfo, rc2, "Failed to import: %s!%s",
264	s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName);
265	Assert(RT_FAILURE(rc));
266	}
267	}
268	}
269	if (RT_SUCCESS(rc))
270	{
271	Assert(!RTErrInfoIsSet(pErrInfo));
272	}
273	}
274
275	for (unsigned i = 0; i < RT_ELEMENTS(ahMods); i++)
276	RTLdrClose(ahMods[i]);
277	return rc;
278	}
279
280
281	/**
282	* Wrapper for different WHvGetCapability signatures.
283	*/
284	DECLINLINE(HRESULT) WHvGetCapabilityWrapper(WHV_CAPABILITY_CODE enmCap, WHV_CAPABILITY *pOutput, uint32_t cbOutput)
285	{
286	return g_pfnWHvGetCapability(enmCap, pOutput, cbOutput, NULL);
287	}
288
289
290	/**
291	* Worker for nemR3NativeInit that gets the hypervisor capabilities.
292	*
293	* @returns VBox status code.
294	* @param pVM The cross context VM structure.
295	* @param pErrInfo Where to always return error info.
296	*/
297	static int nemR3WinInitCheckCapabilities(PVM pVM, PRTERRINFO pErrInfo)
298	{
299	#define NEM_LOG_REL_CAP_EX(a_szField, a_szFmt, a_Value) LogRel(("NEM: %-38s= " a_szFmt "\n", a_szField, a_Value))
300	#define NEM_LOG_REL_CAP_SUB_EX(a_szField, a_szFmt, a_Value) LogRel(("NEM: %36s: " a_szFmt "\n", a_szField, a_Value))
301	#define NEM_LOG_REL_CAP_SUB(a_szField, a_Value) NEM_LOG_REL_CAP_SUB_EX(a_szField, "%d", a_Value)
302
303	/*
304	* Is the hypervisor present with the desired capability?
305	*
306	* In build 17083 this translates into:
307	* - CPUID[0x00000001].HVP is set
308	* - CPUID[0x40000000] == "Microsoft Hv"
309	* - CPUID[0x40000001].eax == "Hv#1"
310	* - CPUID[0x40000003].ebx[12] is set.
311	* - VidGetExoPartitionProperty(INVALID_HANDLE_VALUE, 0x60000, &Ignored) returns
312	* a non-zero value.
313	*/
314	/**
315	* @todo Someone at Microsoft please explain weird API design:
316	* 1. Pointless CapabilityCode duplication int the output;
317	* 2. No output size.
318	*/
319	WHV_CAPABILITY Caps;
320	RT_ZERO(Caps);
321	SetLastError(0);
322	HRESULT hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeHypervisorPresent, &Caps, sizeof(Caps));
323	DWORD rcWin = GetLastError();
324	if (FAILED(hrc))
325	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
326	"WHvGetCapability/WHvCapabilityCodeHypervisorPresent failed: %Rhrc (Last=%#x/%u)",
327	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
328	if (!Caps.HypervisorPresent)
329	{
330	if (!RTPathExists(RTPATH_NT_PASSTHRU_PREFIX "Device\\VidExo"))
331	return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE,
332	"WHvCapabilityCodeHypervisorPresent is FALSE! Make sure you have enabled the 'Windows Hypervisor Platform' feature.");
333	return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE, "WHvCapabilityCodeHypervisorPresent is FALSE! (%u)", rcWin);
334	}
335	LogRel(("NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...\n"));
336
337
338	/*
339	* Check what extended VM exits are supported.
340	*/
341	RT_ZERO(Caps);
342	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeExtendedVmExits, &Caps, sizeof(Caps));
343	if (FAILED(hrc))
344	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
345	"WHvGetCapability/WHvCapabilityCodeExtendedVmExits failed: %Rhrc (Last=%#x/%u)",
346	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
347	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeExtendedVmExits", "%'#018RX64", Caps.ExtendedVmExits.AsUINT64);
348	pVM->nem.s.fHypercallExit = RT_BOOL(Caps.ExtendedVmExits.HypercallExit);
349	pVM->nem.s.fGpaAccessFaultExit = RT_BOOL(Caps.ExtendedVmExits.GpaAccessFaultExit);
350	NEM_LOG_REL_CAP_SUB("fHypercallExit", pVM->nem.s.fHypercallExit);
351	NEM_LOG_REL_CAP_SUB("fGpaAccessFaultExit", pVM->nem.s.fGpaAccessFaultExit);
352	if (Caps.ExtendedVmExits.AsUINT64 & ~(uint64_t)7)
353	LogRel(("NEM: Warning! Unknown VM exit definitions: %#RX64\n", Caps.ExtendedVmExits.AsUINT64));
354	/** @todo RECHECK: WHV_EXTENDED_VM_EXITS typedef. */
355
356	/*
357	* Check features in case they end up defining any.
358	*/
359	RT_ZERO(Caps);
360	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeFeatures, &Caps, sizeof(Caps));
361	if (FAILED(hrc))
362	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
363	"WHvGetCapability/WHvCapabilityCodeFeatures failed: %Rhrc (Last=%#x/%u)",
364	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
365	if (Caps.Features.AsUINT64 & ~(uint64_t)0)
366	LogRel(("NEM: Warning! Unknown feature definitions: %#RX64\n", Caps.Features.AsUINT64));
367	/** @todo RECHECK: WHV_CAPABILITY_FEATURES typedef. */
368
369	/*
370	* Check that the CPU vendor is supported.
371	*/
372	RT_ZERO(Caps);
373	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorVendor, &Caps, sizeof(Caps));
374	if (FAILED(hrc))
375	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
376	"WHvGetCapability/WHvCapabilityCodeProcessorVendor failed: %Rhrc (Last=%#x/%u)",
377	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
378	switch (Caps.ProcessorVendor)
379	{
380	/** @todo RECHECK: WHV_PROCESSOR_VENDOR typedef. */
381	case WHvProcessorVendorArm:
382	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorVendor", "%d - ARM", Caps.ProcessorVendor);
383	pVM->nem.s.enmCpuVendor = CPUMCPUVENDOR_UNKNOWN;
384	break;
385	default:
386	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorVendor", "%d", Caps.ProcessorVendor);
387	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Unknown processor vendor: %d", Caps.ProcessorVendor);
388	}
389
390	/*
391	* CPU features, guessing these are virtual CPU features?
392	*/
393	RT_ZERO(Caps);
394	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorFeatures, &Caps, sizeof(Caps));
395	if (FAILED(hrc))
396	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
397	"WHvGetCapability/WHvCapabilityCodeProcessorFeatures failed: %Rhrc (Last=%#x/%u)",
398	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
399	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorFeatures", "%'#018RX64", Caps.ProcessorFeatures.AsUINT64);
400	#define NEM_LOG_REL_CPU_FEATURE(a_Field) NEM_LOG_REL_CAP_SUB(#a_Field, Caps.ProcessorFeatures.a_Field)
401	NEM_LOG_REL_CPU_FEATURE(Asid16);
402	NEM_LOG_REL_CPU_FEATURE(TGran16);
403	NEM_LOG_REL_CPU_FEATURE(TGran64);
404	NEM_LOG_REL_CPU_FEATURE(Haf);
405	NEM_LOG_REL_CPU_FEATURE(Hdbs);
406	NEM_LOG_REL_CPU_FEATURE(Pan);
407	NEM_LOG_REL_CPU_FEATURE(AtS1E1);
408	NEM_LOG_REL_CPU_FEATURE(Uao);
409	NEM_LOG_REL_CPU_FEATURE(El0Aarch32);
410	NEM_LOG_REL_CPU_FEATURE(Fp);
411	NEM_LOG_REL_CPU_FEATURE(FpHp);
412	NEM_LOG_REL_CPU_FEATURE(AdvSimd);
413	NEM_LOG_REL_CPU_FEATURE(AdvSimdHp);
414	NEM_LOG_REL_CPU_FEATURE(GicV3V4);
415	NEM_LOG_REL_CPU_FEATURE(GicV41);
416	NEM_LOG_REL_CPU_FEATURE(Ras);
417	NEM_LOG_REL_CPU_FEATURE(PmuV3);
418	NEM_LOG_REL_CPU_FEATURE(PmuV3ArmV81);
419	NEM_LOG_REL_CPU_FEATURE(PmuV3ArmV84);
420	NEM_LOG_REL_CPU_FEATURE(PmuV3ArmV85);
421	NEM_LOG_REL_CPU_FEATURE(Aes);
422	NEM_LOG_REL_CPU_FEATURE(PolyMul);
423	NEM_LOG_REL_CPU_FEATURE(Sha1);
424	NEM_LOG_REL_CPU_FEATURE(Sha256);
425	NEM_LOG_REL_CPU_FEATURE(Sha512);
426	NEM_LOG_REL_CPU_FEATURE(Crc32);
427	NEM_LOG_REL_CPU_FEATURE(Atomic);
428	NEM_LOG_REL_CPU_FEATURE(Rdm);
429	NEM_LOG_REL_CPU_FEATURE(Sha3);
430	NEM_LOG_REL_CPU_FEATURE(Sm3);
431	NEM_LOG_REL_CPU_FEATURE(Sm4);
432	NEM_LOG_REL_CPU_FEATURE(Dp);
433	NEM_LOG_REL_CPU_FEATURE(Fhm);
434	NEM_LOG_REL_CPU_FEATURE(DcCvap);
435	NEM_LOG_REL_CPU_FEATURE(DcCvadp);
436	NEM_LOG_REL_CPU_FEATURE(ApaBase);
437	NEM_LOG_REL_CPU_FEATURE(ApaEp);
438	NEM_LOG_REL_CPU_FEATURE(ApaEp2);
439	NEM_LOG_REL_CPU_FEATURE(ApaEp2Fp);
440	NEM_LOG_REL_CPU_FEATURE(ApaEp2Fpc);
441	NEM_LOG_REL_CPU_FEATURE(Jscvt);
442	NEM_LOG_REL_CPU_FEATURE(Fcma);
443	NEM_LOG_REL_CPU_FEATURE(RcpcV83);
444	NEM_LOG_REL_CPU_FEATURE(RcpcV84);
445	NEM_LOG_REL_CPU_FEATURE(Gpa);
446	NEM_LOG_REL_CPU_FEATURE(L1ipPipt);
447	NEM_LOG_REL_CPU_FEATURE(DzPermitted);
448
449	#undef NEM_LOG_REL_CPU_FEATURE
450	if (Caps.ProcessorFeatures.AsUINT64 & (~(RT_BIT_64(47) - 1)))
451	LogRel(("NEM: Warning! Unknown CPU features: %#RX64\n", Caps.ProcessorFeatures.AsUINT64));
452	pVM->nem.s.uCpuFeatures.u64 = Caps.ProcessorFeatures.AsUINT64;
453	/** @todo RECHECK: WHV_PROCESSOR_FEATURES typedef. */
454
455	/*
456	* The cache line flush size.
457	*/
458	RT_ZERO(Caps);
459	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorClFlushSize, &Caps, sizeof(Caps));
460	if (FAILED(hrc))
461	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
462	"WHvGetCapability/WHvCapabilityCodeProcessorClFlushSize failed: %Rhrc (Last=%#x/%u)",
463	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
464	NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorClFlushSize", "2^%u", Caps.ProcessorClFlushSize);
465	if (Caps.ProcessorClFlushSize < 8 && Caps.ProcessorClFlushSize > 9)
466	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Unsupported cache line flush size: %u", Caps.ProcessorClFlushSize);
467	pVM->nem.s.cCacheLineFlushShift = Caps.ProcessorClFlushSize;
468
469	RT_ZERO(Caps);
470	hrc = WHvGetCapabilityWrapper(WHvCapabilityCodePhysicalAddressWidth, &Caps, sizeof(Caps));
471	if (FAILED(hrc))
472	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
473	"WHvGetCapability/WHvCapabilityCodePhysicalAddressWidth failed: %Rhrc (Last=%#x/%u)",
474	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
475	NEM_LOG_REL_CAP_EX("WHvCapabilityCodePhysicalAddressWidth", "2^%u", Caps.PhysicalAddressWidth);
476	if (Caps.PhysicalAddressWidth < 32 && Caps.PhysicalAddressWidth > 52)
477	return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Unsupported physical address width: %u", Caps.ProcessorClFlushSize);
478	pVM->nem.s.cPhysicalAddressWidth = Caps.PhysicalAddressWidth;
479
480
481	/*
482	* See if they've added more properties that we're not aware of.
483	*/
484	/** @todo RECHECK: WHV_CAPABILITY_CODE typedef. */
485	if (!IsDebuggerPresent()) /* Too noisy when in debugger, so skip. */
486	{
487	static const struct
488	{
489	uint32_t iMin, iMax; } s_aUnknowns[] =
490	{
491	{ 0x0004, 0x000f },
492	{ 0x1003, 0x100f },
493	{ 0x2000, 0x200f },
494	{ 0x3000, 0x300f },
495	{ 0x4000, 0x400f },
496	};
497	for (uint32_t j = 0; j < RT_ELEMENTS(s_aUnknowns); j++)
498	for (uint32_t i = s_aUnknowns[j].iMin; i <= s_aUnknowns[j].iMax; i++)
499	{
500	RT_ZERO(Caps);
501	hrc = WHvGetCapabilityWrapper((WHV_CAPABILITY_CODE)i, &Caps, sizeof(Caps));
502	if (SUCCEEDED(hrc))
503	LogRel(("NEM: Warning! Unknown capability %#x returning: %.*Rhxs\n", i, sizeof(Caps), &Caps));
504	}
505	}
506
507	/*
508	* For proper operation, we require CPUID exits.
509	*/
510	/** @todo Any? */
511
512	#undef NEM_LOG_REL_CAP_EX
513	#undef NEM_LOG_REL_CAP_SUB_EX
514	#undef NEM_LOG_REL_CAP_SUB
515	return VINF_SUCCESS;
516	}
517
518
519	/**
520	* Creates and sets up a Hyper-V (exo) partition.
521	*
522	* @returns VBox status code.
523	* @param pVM The cross context VM structure.
524	* @param pErrInfo Where to always return error info.
525	*/
526	static int nemR3WinInitCreatePartition(PVM pVM, PRTERRINFO pErrInfo)
527	{
528	AssertReturn(!pVM->nem.s.hPartition, RTErrInfoSet(pErrInfo, VERR_WRONG_ORDER, "Wrong initalization order"));
529	AssertReturn(!pVM->nem.s.hPartitionDevice, RTErrInfoSet(pErrInfo, VERR_WRONG_ORDER, "Wrong initalization order"));
530
531	/*
532	* Create the partition.
533	*/
534	WHV_PARTITION_HANDLE hPartition;
535	HRESULT hrc = WHvCreatePartition(&hPartition);
536	if (FAILED(hrc))
537	return RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED, "WHvCreatePartition failed with %Rhrc (Last=%#x/%u)",
538	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
539
540	int rc;
541
542	/*
543	* Set partition properties, most importantly the CPU count.
544	*/
545	/**
546	* @todo Someone at Microsoft please explain another weird API:
547	* - Why this API doesn't take the WHV_PARTITION_PROPERTY_CODE value as an
548	* argument rather than as part of the struct. That is so weird if you've
549	* used any other NT or windows API, including WHvGetCapability().
550	* - Why use PVOID when WHV_PARTITION_PROPERTY is what's expected. We
551	* technically only need 9 bytes for setting/getting
552	* WHVPartitionPropertyCodeProcessorClFlushSize, but the API insists on 16. */
553	WHV_PARTITION_PROPERTY Property;
554	RT_ZERO(Property);
555	Property.ProcessorCount = pVM->cCpus;
556	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorCount, &Property, sizeof(Property));
557	if (SUCCEEDED(hrc))
558	{
559	RT_ZERO(Property);
560	Property.ExtendedVmExits.HypercallExit = pVM->nem.s.fHypercallExit;
561	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeExtendedVmExits, &Property, sizeof(Property));
562	if (SUCCEEDED(hrc))
563	{
564	/*
565	* We'll continue setup in nemR3NativeInitAfterCPUM.
566	*/
567	pVM->nem.s.fCreatedEmts = false;
568	pVM->nem.s.hPartition = hPartition;
569	LogRel(("NEM: Created partition %p.\n", hPartition));
570	return VINF_SUCCESS;
571	}
572
573	rc = RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED,
574	"Failed setting WHvPartitionPropertyCodeExtendedVmExits to %'#RX64: %Rhrc",
575	Property.ExtendedVmExits.AsUINT64, hrc);
576	}
577	else
578	rc = RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED,
579	"Failed setting WHvPartitionPropertyCodeProcessorCount to %u: %Rhrc (Last=%#x/%u)",
580	pVM->cCpus, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
581	WHvDeletePartition(hPartition);
582
583	Assert(!pVM->nem.s.hPartitionDevice);
584	Assert(!pVM->nem.s.hPartition);
585	return rc;
586	}
587
588
589	static int nemR3NativeInitSetupVm(PVM pVM)
590	{
591	WHV_PARTITION_HANDLE hPartition = pVM->nem.s.hPartition;
592	AssertReturn(hPartition != NULL, VERR_WRONG_ORDER);
593	AssertReturn(!pVM->nem.s.hPartitionDevice, VERR_WRONG_ORDER);
594	AssertReturn(!pVM->nem.s.fCreatedEmts, VERR_WRONG_ORDER);
595
596	/*
597	* Continue setting up the partition now that we've got most of the CPUID feature stuff.
598	*/
599	WHV_PARTITION_PROPERTY Property;
600	HRESULT hrc;
601
602	#if 0
603	/* Not sure if we really need to set the vendor.
604	Update: Apparently we don't. WHvPartitionPropertyCodeProcessorVendor was removed in 17110. */
605	RT_ZERO(Property);
606	Property.ProcessorVendor = pVM->nem.s.enmCpuVendor == CPUMCPUVENDOR_AMD ? WHvProcessorVendorAmd
607	: WHvProcessorVendorIntel;
608	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorVendor, &Property, sizeof(Property));
609	if (FAILED(hrc))
610	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
611	"Failed to set WHvPartitionPropertyCodeProcessorVendor to %u: %Rhrc (Last=%#x/%u)",
612	Property.ProcessorVendor, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
613	#endif
614
615	/* Not sure if we really need to set the cache line flush size. */
616	RT_ZERO(Property);
617	Property.ProcessorClFlushSize = pVM->nem.s.cCacheLineFlushShift;
618	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorClFlushSize, &Property, sizeof(Property));
619	if (FAILED(hrc))
620	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
621	"Failed to set WHvPartitionPropertyCodeProcessorClFlushSize to %u: %Rhrc (Last=%#x/%u)",
622	pVM->nem.s.cCacheLineFlushShift, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
623
624	/*
625	* Sync CPU features with CPUM.
626	*/
627	/** @todo sync CPU features with CPUM. */
628
629	/* Set the partition property. */
630	RT_ZERO(Property);
631	Property.ProcessorFeatures.AsUINT64 = pVM->nem.s.uCpuFeatures.u64;
632	hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorFeatures, &Property, sizeof(Property));
633	if (FAILED(hrc))
634	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
635	"Failed to set WHvPartitionPropertyCodeProcessorFeatures to %'#RX64: %Rhrc (Last=%#x/%u)",
636	pVM->nem.s.uCpuFeatures.u64, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
637
638	/*
639	* Set up the partition.
640	*
641	* Seems like this is where the partition is actually instantiated and we get
642	* a handle to it.
643	*/
644	hrc = WHvSetupPartition(hPartition);
645	if (FAILED(hrc))
646	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
647	"Call to WHvSetupPartition failed: %Rhrc (Last=%#x/%u)",
648	hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
649
650	/*
651	* Setup the EMTs.
652	*/
653	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
654	{
655	hrc = WHvCreateVirtualProcessor(hPartition, idCpu, 0 /fFlags/);
656	if (FAILED(hrc))
657	{
658	NTSTATUS const rcNtLast = RTNtLastStatusValue();
659	DWORD const dwErrLast = RTNtLastErrorValue();
660	while (idCpu-- > 0)
661	{
662	HRESULT hrc2 = WHvDeleteVirtualProcessor(hPartition, idCpu);
663	AssertLogRelMsg(SUCCEEDED(hrc2), ("WHvDeleteVirtualProcessor(%p, %u) -> %Rhrc (Last=%#x/%u)\n",
664	hPartition, idCpu, hrc2, RTNtLastStatusValue(),
665	RTNtLastErrorValue()));
666	}
667	return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
668	"Call to WHvCreateVirtualProcessor failed: %Rhrc (Last=%#x/%u)", hrc, rcNtLast, dwErrLast);
669	}
670
671	if (idCpu == 0)
672	{
673	/* Need to query the ID registers and populate CPUM. */
674	CPUMIDREGS IdRegs; RT_ZERO(IdRegs);
675
676	#if 1
677	WHV_REGISTER_NAME aenmNames[12];
678	WHV_REGISTER_VALUE aValues[12];
679	RT_ZERO(aValues);
680
681	aenmNames[0] = WHvArm64RegisterIdAa64Dfr0El1;
682	aenmNames[1] = WHvArm64RegisterIdAa64Dfr1El1;
683	aenmNames[2] = WHvArm64RegisterIdAa64Isar0El1;
684	aenmNames[3] = WHvArm64RegisterIdAa64Isar1El1;
685	aenmNames[4] = WHvArm64RegisterIdAa64Isar2El1;
686	aenmNames[5] = WHvArm64RegisterIdAa64Mmfr0El1;
687	aenmNames[6] = WHvArm64RegisterIdAa64Mmfr1El1;
688	aenmNames[7] = WHvArm64RegisterIdAa64Mmfr2El1;
689	aenmNames[8] = WHvArm64RegisterIdAa64Pfr0El1;
690	aenmNames[9] = WHvArm64RegisterIdAa64Pfr1El1;
691	aenmNames[10] = WHvArm64RegisterCtrEl0;
692	aenmNames[11] = WHvArm64RegisterDczidEl0;
693
694	hrc = WHvGetVirtualProcessorRegisters(hPartition, WHV_ANY_VP /idCpu/, aenmNames, RT_ELEMENTS(aenmNames), aValues);
695	AssertLogRelMsgReturn(SUCCEEDED(hrc),
696	("WHvGetVirtualProcessorRegisters(%p, %u,,%u,) -> %Rhrc (Last=%#x/%u)\n",
697	hPartition, WHV_ANY_VP, RT_ELEMENTS(aenmNames), hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
698	, VERR_NEM_GET_REGISTERS_FAILED);
699
700	IdRegs.u64RegIdAa64Pfr0El1 = aValues[8].Reg64;
701	IdRegs.u64RegIdAa64Pfr1El1 = aValues[9].Reg64;
702	IdRegs.u64RegIdAa64Dfr0El1 = aValues[0].Reg64;
703	IdRegs.u64RegIdAa64Dfr1El1 = aValues[1].Reg64;
704	IdRegs.u64RegIdAa64Isar0El1 = aValues[2].Reg64;
705	IdRegs.u64RegIdAa64Isar1El1 = aValues[3].Reg64;
706	IdRegs.u64RegIdAa64Isar2El1 = aValues[4].Reg64;
707	IdRegs.u64RegIdAa64Mmfr0El1 = aValues[5].Reg64;
708	IdRegs.u64RegIdAa64Mmfr1El1 = aValues[6].Reg64;
709	IdRegs.u64RegIdAa64Mmfr2El1 = aValues[7].Reg64;
710	IdRegs.u64RegCtrEl0 = aValues[10].Reg64;
711	IdRegs.u64RegDczidEl0 = aValues[11].Reg64;
712	#else
713	switch (pVM->nem.s.cPhysicalAddressWidth)
714	{
715	case 32: IdRegs.u64RegIdAa64Mmfr0El1 = RT_BF_SET(IdRegs.u64RegIdAa64Mmfr0El1, ARMV8_ID_AA64MMFR0_EL1_PARANGE, ARMV8_ID_AA64MMFR0_EL1_PARANGE_32BITS); break;
716	case 36: IdRegs.u64RegIdAa64Mmfr0El1 = RT_BF_SET(IdRegs.u64RegIdAa64Mmfr0El1, ARMV8_ID_AA64MMFR0_EL1_PARANGE, ARMV8_ID_AA64MMFR0_EL1_PARANGE_36BITS); break;
717	case 40: IdRegs.u64RegIdAa64Mmfr0El1 = RT_BF_SET(IdRegs.u64RegIdAa64Mmfr0El1, ARMV8_ID_AA64MMFR0_EL1_PARANGE, ARMV8_ID_AA64MMFR0_EL1_PARANGE_40BITS); break;
718	case 42: IdRegs.u64RegIdAa64Mmfr0El1 = RT_BF_SET(IdRegs.u64RegIdAa64Mmfr0El1, ARMV8_ID_AA64MMFR0_EL1_PARANGE, ARMV8_ID_AA64MMFR0_EL1_PARANGE_42BITS); break;
719	case 44: IdRegs.u64RegIdAa64Mmfr0El1 = RT_BF_SET(IdRegs.u64RegIdAa64Mmfr0El1, ARMV8_ID_AA64MMFR0_EL1_PARANGE, ARMV8_ID_AA64MMFR0_EL1_PARANGE_44BITS); break;
720	case 48: IdRegs.u64RegIdAa64Mmfr0El1 = RT_BF_SET(IdRegs.u64RegIdAa64Mmfr0El1, ARMV8_ID_AA64MMFR0_EL1_PARANGE, ARMV8_ID_AA64MMFR0_EL1_PARANGE_48BITS); break;
721	case 52: IdRegs.u64RegIdAa64Mmfr0El1 = RT_BF_SET(IdRegs.u64RegIdAa64Mmfr0El1, ARMV8_ID_AA64MMFR0_EL1_PARANGE, ARMV8_ID_AA64MMFR0_EL1_PARANGE_52BITS); break;
722	default: AssertReleaseFailed(); break;
723	}
724	#endif
725
726	int rc = CPUMR3PopulateFeaturesByIdRegisters(pVM, &IdRegs);
727	if (RT_FAILURE(rc))
728	return rc;
729	}
730	}
731	pVM->nem.s.fCreatedEmts = true;
732
733	LogRel(("NEM: Successfully set up partition\n"));
734	return VINF_SUCCESS;
735	}
736
737
738	/**
739	* Try initialize the native API.
740	*
741	* This may only do part of the job, more can be done in
742	* nemR3NativeInitAfterCPUM() and nemR3NativeInitCompleted().
743	*
744	* @returns VBox status code.
745	* @param pVM The cross context VM structure.
746	* @param fFallback Whether we're in fallback mode or use-NEM mode. In
747	* the latter we'll fail if we cannot initialize.
748	* @param fForced Whether the HMForced flag is set and we should
749	* fail if we cannot initialize.
750	*/
751	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced)
752	{
753	g_uBuildNo = RTSystemGetNtBuildNo();
754
755	/*
756	* Error state.
757	* The error message will be non-empty on failure and 'rc' will be set too.
758	*/
759	RTERRINFOSTATIC ErrInfo;
760	PRTERRINFO pErrInfo = RTErrInfoInitStatic(&ErrInfo);
761	int rc = nemR3WinInitProbeAndLoad(fForced, pErrInfo);
762	if (RT_SUCCESS(rc))
763	{
764	/*
765	* Check the capabilties of the hypervisor, starting with whether it's present.
766	*/
767	rc = nemR3WinInitCheckCapabilities(pVM, pErrInfo);
768	if (RT_SUCCESS(rc))
769	{
770	/*
771	* Create and initialize a partition.
772	*/
773	rc = nemR3WinInitCreatePartition(pVM, pErrInfo);
774	if (RT_SUCCESS(rc))
775	{
776	rc = nemR3NativeInitSetupVm(pVM);
777	if (RT_SUCCESS(rc))
778	{
779	/*
780	* Set ourselves as the execution engine and make config adjustments.
781	*/
782	VM_SET_MAIN_EXECUTION_ENGINE(pVM, VM_EXEC_ENGINE_NATIVE_API);
783	Log(("NEM: Marked active!\n"));
784	PGMR3EnableNemMode(pVM);
785
786	/*
787	* Register release statistics
788	*/
789	STAMR3Register(pVM, (void *)&pVM->nem.s.cMappedPages, STAMTYPE_U32, STAMVISIBILITY_ALWAYS,
790	"/NEM/PagesCurrentlyMapped", STAMUNIT_PAGES, "Number guest pages currently mapped by the VM");
791	STAMR3Register(pVM, (void *)&pVM->nem.s.StatMapPage, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
792	"/NEM/PagesMapCalls", STAMUNIT_PAGES, "Calls to WHvMapGpaRange/HvCallMapGpaPages");
793	STAMR3Register(pVM, (void *)&pVM->nem.s.StatMapPageFailed, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
794	"/NEM/PagesMapFails", STAMUNIT_PAGES, "Calls to WHvMapGpaRange/HvCallMapGpaPages that failed");
795	STAMR3Register(pVM, (void *)&pVM->nem.s.StatUnmapPage, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
796	"/NEM/PagesUnmapCalls", STAMUNIT_PAGES, "Calls to WHvUnmapGpaRange/HvCallUnmapGpaPages");
797	STAMR3Register(pVM, (void *)&pVM->nem.s.StatUnmapPageFailed, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
798	"/NEM/PagesUnmapFails", STAMUNIT_PAGES, "Calls to WHvUnmapGpaRange/HvCallUnmapGpaPages that failed");
799	STAMR3Register(pVM, &pVM->nem.s.StatProfMapGpaRange, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
800	"/NEM/PagesMapGpaRange", STAMUNIT_TICKS_PER_CALL, "Profiling calls to WHvMapGpaRange for bigger stuff");
801	STAMR3Register(pVM, &pVM->nem.s.StatProfUnmapGpaRange, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
802	"/NEM/PagesUnmapGpaRange", STAMUNIT_TICKS_PER_CALL, "Profiling calls to WHvUnmapGpaRange for bigger stuff");
803	STAMR3Register(pVM, &pVM->nem.s.StatProfMapGpaRangePage, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
804	"/NEM/PagesMapGpaRangePage", STAMUNIT_TICKS_PER_CALL, "Profiling calls to WHvMapGpaRange for single pages");
805	STAMR3Register(pVM, &pVM->nem.s.StatProfUnmapGpaRangePage, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
806	"/NEM/PagesUnmapGpaRangePage", STAMUNIT_TICKS_PER_CALL, "Profiling calls to WHvUnmapGpaRange for single pages");
807
808	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
809	{
810	PNEMCPU pNemCpu = &pVM->apCpusR3[idCpu]->nem.s;
811	STAMR3RegisterF(pVM, &pNemCpu->StatExitPortIo, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of port I/O exits", "/NEM/CPU%u/ExitPortIo", idCpu);
812	STAMR3RegisterF(pVM, &pNemCpu->StatExitMemUnmapped, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of unmapped memory exits", "/NEM/CPU%u/ExitMemUnmapped", idCpu);
813	STAMR3RegisterF(pVM, &pNemCpu->StatExitMemIntercept, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of intercepted memory exits", "/NEM/CPU%u/ExitMemIntercept", idCpu);
814	STAMR3RegisterF(pVM, &pNemCpu->StatExitHalt, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of HLT exits", "/NEM/CPU%u/ExitHalt", idCpu);
815	STAMR3RegisterF(pVM, &pNemCpu->StatExitInterruptWindow, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of interrupt window exits", "/NEM/CPU%u/ExitInterruptWindow", idCpu);
816	STAMR3RegisterF(pVM, &pNemCpu->StatExitCpuId, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of CPUID exits", "/NEM/CPU%u/ExitCpuId", idCpu);
817	STAMR3RegisterF(pVM, &pNemCpu->StatExitMsr, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of MSR access exits", "/NEM/CPU%u/ExitMsr", idCpu);
818	STAMR3RegisterF(pVM, &pNemCpu->StatExitException, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of exception exits", "/NEM/CPU%u/ExitException", idCpu);
819	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionBp, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #BP exits", "/NEM/CPU%u/ExitExceptionBp", idCpu);
820	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionDb, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #DB exits", "/NEM/CPU%u/ExitExceptionDb", idCpu);
821	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionGp, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #GP exits", "/NEM/CPU%u/ExitExceptionGp", idCpu);
822	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionGpMesa, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #GP exits from mesa driver", "/NEM/CPU%u/ExitExceptionGpMesa", idCpu);
823	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionUd, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #UD exits", "/NEM/CPU%u/ExitExceptionUd", idCpu);
824	STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionUdHandled, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of handled #UD exits", "/NEM/CPU%u/ExitExceptionUdHandled", idCpu);
825	STAMR3RegisterF(pVM, &pNemCpu->StatExitUnrecoverable, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of unrecoverable exits", "/NEM/CPU%u/ExitUnrecoverable", idCpu);
826	STAMR3RegisterF(pVM, &pNemCpu->StatGetMsgTimeout, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of get message timeouts/alerts", "/NEM/CPU%u/GetMsgTimeout", idCpu);
827	STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuSuccess, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of successful CPU stops", "/NEM/CPU%u/StopCpuSuccess", idCpu);
828	STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPending, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pending CPU stops", "/NEM/CPU%u/StopCpuPending", idCpu);
829	STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPendingAlerts,STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pending CPU stop alerts", "/NEM/CPU%u/StopCpuPendingAlerts", idCpu);
830	STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPendingOdd, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of odd pending CPU stops (see code)", "/NEM/CPU%u/StopCpuPendingOdd", idCpu);
831	STAMR3RegisterF(pVM, &pNemCpu->StatCancelChangedState, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel changed state", "/NEM/CPU%u/CancelChangedState", idCpu);
832	STAMR3RegisterF(pVM, &pNemCpu->StatCancelAlertedThread, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel alerted EMT", "/NEM/CPU%u/CancelAlertedEMT", idCpu);
833	STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnFFPre, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pre execution FF breaks", "/NEM/CPU%u/BreakOnFFPre", idCpu);
834	STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnFFPost, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of post execution FF breaks", "/NEM/CPU%u/BreakOnFFPost", idCpu);
835	STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnCancel, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel execution breaks", "/NEM/CPU%u/BreakOnCancel", idCpu);
836	STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnStatus, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of status code breaks", "/NEM/CPU%u/BreakOnStatus", idCpu);
837	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnDemand, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of on-demand state imports", "/NEM/CPU%u/ImportOnDemand", idCpu);
838	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnReturn, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of state imports on loop return", "/NEM/CPU%u/ImportOnReturn", idCpu);
839	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnReturnSkipped, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of skipped state imports on loop return", "/NEM/CPU%u/ImportOnReturnSkipped", idCpu);
840	STAMR3RegisterF(pVM, &pNemCpu->StatQueryCpuTick, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of TSC queries", "/NEM/CPU%u/QueryCpuTick", idCpu);
841	}
842
843	if (!SUPR3IsDriverless())
844	{
845	PUVM pUVM = pVM->pUVM;
846	STAMR3RegisterRefresh(pUVM, &pVM->nem.s.R0Stats.cPagesAvailable, STAMTYPE_U64, STAMVISIBILITY_ALWAYS,
847	STAMUNIT_PAGES, STAM_REFRESH_GRP_NEM, "Free pages available to the hypervisor",
848	"/NEM/R0Stats/cPagesAvailable");
849	STAMR3RegisterRefresh(pUVM, &pVM->nem.s.R0Stats.cPagesInUse, STAMTYPE_U64, STAMVISIBILITY_ALWAYS,
850	STAMUNIT_PAGES, STAM_REFRESH_GRP_NEM, "Pages in use by hypervisor",
851	"/NEM/R0Stats/cPagesInUse");
852	}
853	}
854
855	}
856
857	}
858	}
859
860	/*
861	* We only fail if in forced mode, otherwise just log the complaint and return.
862	*/
863	Assert(pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API \|\| RTErrInfoIsSet(pErrInfo));
864	if ( (fForced \|\| !fFallback)
865	&& pVM->bMainExecutionEngine != VM_EXEC_ENGINE_NATIVE_API)
866	return VMSetError(pVM, RT_SUCCESS_NP(rc) ? VERR_NEM_NOT_AVAILABLE : rc, RT_SRC_POS, "%s", pErrInfo->pszMsg);
867
868	if (RTErrInfoIsSet(pErrInfo))
869	LogRel(("NEM: Not available: %s\n", pErrInfo->pszMsg));
870	return VINF_SUCCESS;
871	}
872
873
874	/**
875	* This is called after CPUMR3Init is done.
876	*
877	* @returns VBox status code.
878	* @param pVM The VM handle..
879	*/
880	int nemR3NativeInitAfterCPUM(PVM pVM)
881	{
882	/*
883	* Validate sanity.
884	*/
885	AssertReturn(pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API, VERR_WRONG_ORDER);
886
887	/** @todo */
888
889	/*
890	* Any hyper-v statistics we can get at now? HvCallMapStatsPage isn't accessible any more.
891	*/
892	/** @todo stats */
893
894	/*
895	* Adjust features.
896	*
897	* Note! We've already disabled X2APIC and MONITOR/MWAIT via CFGM during
898	* the first init call.
899	*/
900
901	return VINF_SUCCESS;
902	}
903
904
905	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
906	{
907	//BOOL fRet = SetThreadPriority(GetCurrentThread(), 0);
908	//AssertLogRel(fRet);
909
910	NOREF(pVM); NOREF(enmWhat);
911	return VINF_SUCCESS;
912	}
913
914
915	int nemR3NativeTerm(PVM pVM)
916	{
917	/*
918	* Delete the partition.
919	*/
920	WHV_PARTITION_HANDLE hPartition = pVM->nem.s.hPartition;
921	pVM->nem.s.hPartition = NULL;
922	pVM->nem.s.hPartitionDevice = NULL;
923	if (hPartition != NULL)
924	{
925	VMCPUID idCpu = pVM->nem.s.fCreatedEmts ? pVM->cCpus : 0;
926	LogRel(("NEM: Destroying partition %p with its %u VCpus...\n", hPartition, idCpu));
927	while (idCpu-- > 0)
928	{
929	HRESULT hrc = WHvDeleteVirtualProcessor(hPartition, idCpu);
930	AssertLogRelMsg(SUCCEEDED(hrc), ("WHvDeleteVirtualProcessor(%p, %u) -> %Rhrc (Last=%#x/%u)\n",
931	hPartition, idCpu, hrc, RTNtLastStatusValue(),
932	RTNtLastErrorValue()));
933	}
934	WHvDeletePartition(hPartition);
935	}
936	pVM->nem.s.fCreatedEmts = false;
937	return VINF_SUCCESS;
938	}
939
940
941	/**
942	* VM reset notification.
943	*
944	* @param pVM The cross context VM structure.
945	*/
946	void nemR3NativeReset(PVM pVM)
947	{
948	RT_NOREF(pVM);
949	}
950
951
952	/**
953	* Reset CPU due to INIT IPI or hot (un)plugging.
954	*
955	* @param pVCpu The cross context virtual CPU structure of the CPU being
956	* reset.
957	* @param fInitIpi Whether this is the INIT IPI or hot (un)plugging case.
958	*/
959	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi)
960	{
961	RT_NOREF(pVCpu, fInitIpi);
962	}
963
964
965	NEM_TMPL_STATIC int nemHCWinCopyStateToHyperV(PVMCC pVM, PVMCPUCC pVCpu)
966	{
967	WHV_REGISTER_NAME aenmNames[128];
968	WHV_REGISTER_VALUE aValues[128];
969
970	uint64_t const fWhat = ~pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_ALL;
971	if (!fWhat)
972	return VINF_SUCCESS;
973	uintptr_t iReg = 0;
974
975	#define ADD_REG64(a_enmName, a_uValue) do { \
976	aenmNames[iReg] = (a_enmName); \
977	aValues[iReg].Reg128.High64 = 0; \
978	aValues[iReg].Reg64 = (a_uValue).x; \
979	iReg++; \
980	} while (0)
981	#define ADD_REG64_RAW(a_enmName, a_uValue) do { \
982	aenmNames[iReg] = (a_enmName); \
983	aValues[iReg].Reg128.High64 = 0; \
984	aValues[iReg].Reg64 = (a_uValue); \
985	iReg++; \
986	} while (0)
987	#define ADD_REG128(a_enmName, a_uValue) do { \
988	aenmNames[iReg] = (a_enmName); \
989	aValues[iReg].Reg128.Low64 = (a_uValue).au64[0]; \
990	aValues[iReg].Reg128.High64 = (a_uValue).au64[1]; \
991	iReg++; \
992	} while (0)
993
994	/* GPRs */
995	if (fWhat & CPUMCTX_EXTRN_GPRS_MASK)
996	{
997	if (fWhat & CPUMCTX_EXTRN_X0)
998	ADD_REG64(WHvArm64RegisterX0, pVCpu->cpum.GstCtx.aGRegs[0]);
999	if (fWhat & CPUMCTX_EXTRN_X1)
1000	ADD_REG64(WHvArm64RegisterX1, pVCpu->cpum.GstCtx.aGRegs[1]);
1001	if (fWhat & CPUMCTX_EXTRN_X2)
1002	ADD_REG64(WHvArm64RegisterX2, pVCpu->cpum.GstCtx.aGRegs[2]);
1003	if (fWhat & CPUMCTX_EXTRN_X3)
1004	ADD_REG64(WHvArm64RegisterX3, pVCpu->cpum.GstCtx.aGRegs[3]);
1005	if (fWhat & CPUMCTX_EXTRN_X4_X28)
1006	{
1007	ADD_REG64(WHvArm64RegisterX4, pVCpu->cpum.GstCtx.aGRegs[4]);
1008	ADD_REG64(WHvArm64RegisterX5, pVCpu->cpum.GstCtx.aGRegs[5]);
1009	ADD_REG64(WHvArm64RegisterX6, pVCpu->cpum.GstCtx.aGRegs[6]);
1010	ADD_REG64(WHvArm64RegisterX7, pVCpu->cpum.GstCtx.aGRegs[7]);
1011	ADD_REG64(WHvArm64RegisterX8, pVCpu->cpum.GstCtx.aGRegs[8]);
1012	ADD_REG64(WHvArm64RegisterX9, pVCpu->cpum.GstCtx.aGRegs[9]);
1013	ADD_REG64(WHvArm64RegisterX10, pVCpu->cpum.GstCtx.aGRegs[10]);
1014	ADD_REG64(WHvArm64RegisterX11, pVCpu->cpum.GstCtx.aGRegs[11]);
1015	ADD_REG64(WHvArm64RegisterX12, pVCpu->cpum.GstCtx.aGRegs[12]);
1016	ADD_REG64(WHvArm64RegisterX13, pVCpu->cpum.GstCtx.aGRegs[13]);
1017	ADD_REG64(WHvArm64RegisterX14, pVCpu->cpum.GstCtx.aGRegs[14]);
1018	ADD_REG64(WHvArm64RegisterX15, pVCpu->cpum.GstCtx.aGRegs[15]);
1019	ADD_REG64(WHvArm64RegisterX16, pVCpu->cpum.GstCtx.aGRegs[16]);
1020	ADD_REG64(WHvArm64RegisterX17, pVCpu->cpum.GstCtx.aGRegs[17]);
1021	ADD_REG64(WHvArm64RegisterX18, pVCpu->cpum.GstCtx.aGRegs[18]);
1022	ADD_REG64(WHvArm64RegisterX19, pVCpu->cpum.GstCtx.aGRegs[19]);
1023	ADD_REG64(WHvArm64RegisterX20, pVCpu->cpum.GstCtx.aGRegs[20]);
1024	ADD_REG64(WHvArm64RegisterX21, pVCpu->cpum.GstCtx.aGRegs[21]);
1025	ADD_REG64(WHvArm64RegisterX22, pVCpu->cpum.GstCtx.aGRegs[22]);
1026	ADD_REG64(WHvArm64RegisterX23, pVCpu->cpum.GstCtx.aGRegs[23]);
1027	ADD_REG64(WHvArm64RegisterX24, pVCpu->cpum.GstCtx.aGRegs[24]);
1028	ADD_REG64(WHvArm64RegisterX25, pVCpu->cpum.GstCtx.aGRegs[25]);
1029	ADD_REG64(WHvArm64RegisterX26, pVCpu->cpum.GstCtx.aGRegs[26]);
1030	ADD_REG64(WHvArm64RegisterX27, pVCpu->cpum.GstCtx.aGRegs[27]);
1031	ADD_REG64(WHvArm64RegisterX28, pVCpu->cpum.GstCtx.aGRegs[28]);
1032	}
1033	if (fWhat & CPUMCTX_EXTRN_LR)
1034	ADD_REG64(WHvArm64RegisterLr, pVCpu->cpum.GstCtx.aGRegs[30]);
1035	if (fWhat & CPUMCTX_EXTRN_FP)
1036	ADD_REG64(WHvArm64RegisterFp, pVCpu->cpum.GstCtx.aGRegs[29]);
1037	}
1038
1039	/* RIP & Flags */
1040	if (fWhat & CPUMCTX_EXTRN_PC)
1041	ADD_REG64_RAW(WHvArm64RegisterPc, pVCpu->cpum.GstCtx.Pc.u64);
1042	if (fWhat & CPUMCTX_EXTRN_PSTATE)
1043	ADD_REG64_RAW(WHvArm64RegisterPstate, pVCpu->cpum.GstCtx.fPState);
1044
1045	/* Vector state. */
1046	if (fWhat & CPUMCTX_EXTRN_V0_V31)
1047	{
1048	ADD_REG128(WHvArm64RegisterQ0, pVCpu->cpum.GstCtx.aVRegs[0]);
1049	ADD_REG128(WHvArm64RegisterQ1, pVCpu->cpum.GstCtx.aVRegs[1]);
1050	ADD_REG128(WHvArm64RegisterQ2, pVCpu->cpum.GstCtx.aVRegs[2]);
1051	ADD_REG128(WHvArm64RegisterQ3, pVCpu->cpum.GstCtx.aVRegs[3]);
1052	ADD_REG128(WHvArm64RegisterQ4, pVCpu->cpum.GstCtx.aVRegs[4]);
1053	ADD_REG128(WHvArm64RegisterQ5, pVCpu->cpum.GstCtx.aVRegs[5]);
1054	ADD_REG128(WHvArm64RegisterQ6, pVCpu->cpum.GstCtx.aVRegs[6]);
1055	ADD_REG128(WHvArm64RegisterQ7, pVCpu->cpum.GstCtx.aVRegs[7]);
1056	ADD_REG128(WHvArm64RegisterQ8, pVCpu->cpum.GstCtx.aVRegs[8]);
1057	ADD_REG128(WHvArm64RegisterQ9, pVCpu->cpum.GstCtx.aVRegs[9]);
1058	ADD_REG128(WHvArm64RegisterQ10, pVCpu->cpum.GstCtx.aVRegs[10]);
1059	ADD_REG128(WHvArm64RegisterQ11, pVCpu->cpum.GstCtx.aVRegs[11]);
1060	ADD_REG128(WHvArm64RegisterQ12, pVCpu->cpum.GstCtx.aVRegs[12]);
1061	ADD_REG128(WHvArm64RegisterQ13, pVCpu->cpum.GstCtx.aVRegs[13]);
1062	ADD_REG128(WHvArm64RegisterQ14, pVCpu->cpum.GstCtx.aVRegs[14]);
1063	ADD_REG128(WHvArm64RegisterQ15, pVCpu->cpum.GstCtx.aVRegs[15]);
1064	ADD_REG128(WHvArm64RegisterQ16, pVCpu->cpum.GstCtx.aVRegs[16]);
1065	ADD_REG128(WHvArm64RegisterQ17, pVCpu->cpum.GstCtx.aVRegs[17]);
1066	ADD_REG128(WHvArm64RegisterQ18, pVCpu->cpum.GstCtx.aVRegs[18]);
1067	ADD_REG128(WHvArm64RegisterQ19, pVCpu->cpum.GstCtx.aVRegs[19]);
1068	ADD_REG128(WHvArm64RegisterQ20, pVCpu->cpum.GstCtx.aVRegs[20]);
1069	ADD_REG128(WHvArm64RegisterQ21, pVCpu->cpum.GstCtx.aVRegs[21]);
1070	ADD_REG128(WHvArm64RegisterQ22, pVCpu->cpum.GstCtx.aVRegs[22]);
1071	ADD_REG128(WHvArm64RegisterQ23, pVCpu->cpum.GstCtx.aVRegs[23]);
1072	ADD_REG128(WHvArm64RegisterQ24, pVCpu->cpum.GstCtx.aVRegs[24]);
1073	ADD_REG128(WHvArm64RegisterQ25, pVCpu->cpum.GstCtx.aVRegs[25]);
1074	ADD_REG128(WHvArm64RegisterQ26, pVCpu->cpum.GstCtx.aVRegs[26]);
1075	ADD_REG128(WHvArm64RegisterQ27, pVCpu->cpum.GstCtx.aVRegs[27]);
1076	ADD_REG128(WHvArm64RegisterQ28, pVCpu->cpum.GstCtx.aVRegs[28]);
1077	ADD_REG128(WHvArm64RegisterQ29, pVCpu->cpum.GstCtx.aVRegs[29]);
1078	ADD_REG128(WHvArm64RegisterQ30, pVCpu->cpum.GstCtx.aVRegs[30]);
1079	ADD_REG128(WHvArm64RegisterQ31, pVCpu->cpum.GstCtx.aVRegs[31]);
1080	}
1081
1082	#undef ADD_REG64
1083	#undef ADD_REG64_RAW
1084	#undef ADD_REG128
1085
1086	/*
1087	* Set the registers.
1088	*/
1089	Assert(iReg < RT_ELEMENTS(aValues));
1090	Assert(iReg < RT_ELEMENTS(aenmNames));
1091	HRESULT hrc = WHvSetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, aenmNames, iReg, aValues);
1092	if (SUCCEEDED(hrc))
1093	{
1094	pVCpu->cpum.GstCtx.fExtrn \|= CPUMCTX_EXTRN_ALL \| CPUMCTX_EXTRN_KEEPER_NEM;
1095	return VINF_SUCCESS;
1096	}
1097	AssertLogRelMsgFailed(("WHvSetVirtualProcessorRegisters(%p, %u,,%u,) -> %Rhrc (Last=%#x/%u)\n",
1098	pVM->nem.s.hPartition, pVCpu->idCpu, iReg,
1099	hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
1100	return VERR_INTERNAL_ERROR;
1101	}
1102
1103
1104	NEM_TMPL_STATIC int nemHCWinCopyStateFromHyperV(PVMCC pVM, PVMCPUCC pVCpu, uint64_t fWhat)
1105	{
1106	WHV_REGISTER_NAME aenmNames[128];
1107
1108	fWhat &= pVCpu->cpum.GstCtx.fExtrn;
1109	if (!fWhat)
1110	return VINF_SUCCESS;
1111
1112	uintptr_t iReg = 0;
1113
1114	/* GPRs */
1115	if (fWhat & CPUMCTX_EXTRN_GPRS_MASK)
1116	{
1117	if (fWhat & CPUMCTX_EXTRN_X0)
1118	aenmNames[iReg++] = WHvArm64RegisterX0;
1119	if (fWhat & CPUMCTX_EXTRN_X1)
1120	aenmNames[iReg++] = WHvArm64RegisterX1;
1121	if (fWhat & CPUMCTX_EXTRN_X2)
1122	aenmNames[iReg++] = WHvArm64RegisterX2;
1123	if (fWhat & CPUMCTX_EXTRN_X3)
1124	aenmNames[iReg++] = WHvArm64RegisterX3;
1125	if (fWhat & CPUMCTX_EXTRN_X4_X28)
1126	{
1127	aenmNames[iReg++] = WHvArm64RegisterX4;
1128	aenmNames[iReg++] = WHvArm64RegisterX5;
1129	aenmNames[iReg++] = WHvArm64RegisterX6;
1130	aenmNames[iReg++] = WHvArm64RegisterX7;
1131	aenmNames[iReg++] = WHvArm64RegisterX8;
1132	aenmNames[iReg++] = WHvArm64RegisterX9;
1133	aenmNames[iReg++] = WHvArm64RegisterX10;
1134	aenmNames[iReg++] = WHvArm64RegisterX11;
1135	aenmNames[iReg++] = WHvArm64RegisterX12;
1136	aenmNames[iReg++] = WHvArm64RegisterX13;
1137	aenmNames[iReg++] = WHvArm64RegisterX14;
1138	aenmNames[iReg++] = WHvArm64RegisterX15;
1139	aenmNames[iReg++] = WHvArm64RegisterX16;
1140	aenmNames[iReg++] = WHvArm64RegisterX17;
1141	aenmNames[iReg++] = WHvArm64RegisterX18;
1142	aenmNames[iReg++] = WHvArm64RegisterX19;
1143	aenmNames[iReg++] = WHvArm64RegisterX20;
1144	aenmNames[iReg++] = WHvArm64RegisterX21;
1145	aenmNames[iReg++] = WHvArm64RegisterX22;
1146	aenmNames[iReg++] = WHvArm64RegisterX23;
1147	aenmNames[iReg++] = WHvArm64RegisterX24;
1148	aenmNames[iReg++] = WHvArm64RegisterX25;
1149	aenmNames[iReg++] = WHvArm64RegisterX26;
1150	aenmNames[iReg++] = WHvArm64RegisterX27;
1151	aenmNames[iReg++] = WHvArm64RegisterX28;
1152	}
1153	if (fWhat & CPUMCTX_EXTRN_LR)
1154	aenmNames[iReg++] = WHvArm64RegisterLr;
1155	if (fWhat & CPUMCTX_EXTRN_FP)
1156	aenmNames[iReg++] = WHvArm64RegisterFp;
1157	}
1158
1159	/* PC & Flags */
1160	if (fWhat & CPUMCTX_EXTRN_PC)
1161	aenmNames[iReg++] = WHvArm64RegisterPc;
1162	if (fWhat & CPUMCTX_EXTRN_PSTATE)
1163	aenmNames[iReg++] = WHvArm64RegisterPstate;
1164	if (fWhat & CPUMCTX_EXTRN_SPSR)
1165	aenmNames[iReg++] = WHvArm64RegisterSpsrEl1;
1166	if (fWhat & CPUMCTX_EXTRN_ELR)
1167	aenmNames[iReg++] = WHvArm64RegisterElrEl1;
1168	if (fWhat & CPUMCTX_EXTRN_SP)
1169	{
1170	aenmNames[iReg++] = WHvArm64RegisterSpEl0;
1171	aenmNames[iReg++] = WHvArm64RegisterSpEl1;
1172	}
1173	if (fWhat & CPUMCTX_EXTRN_SCTLR_TCR_TTBR)
1174	{
1175	aenmNames[iReg++] = WHvArm64RegisterSctlrEl1;
1176	aenmNames[iReg++] = WHvArm64RegisterTcrEl1;
1177	aenmNames[iReg++] = WHvArm64RegisterTtbr0El1;
1178	aenmNames[iReg++] = WHvArm64RegisterTtbr1El1;
1179	}
1180
1181	/* Vector state. */
1182	if (fWhat & CPUMCTX_EXTRN_V0_V31)
1183	{
1184	aenmNames[iReg++] = WHvArm64RegisterQ0;
1185	aenmNames[iReg++] = WHvArm64RegisterQ1;
1186	aenmNames[iReg++] = WHvArm64RegisterQ2;
1187	aenmNames[iReg++] = WHvArm64RegisterQ3;
1188	aenmNames[iReg++] = WHvArm64RegisterQ4;
1189	aenmNames[iReg++] = WHvArm64RegisterQ5;
1190	aenmNames[iReg++] = WHvArm64RegisterQ6;
1191	aenmNames[iReg++] = WHvArm64RegisterQ7;
1192	aenmNames[iReg++] = WHvArm64RegisterQ8;
1193	aenmNames[iReg++] = WHvArm64RegisterQ9;
1194	aenmNames[iReg++] = WHvArm64RegisterQ10;
1195	aenmNames[iReg++] = WHvArm64RegisterQ11;
1196	aenmNames[iReg++] = WHvArm64RegisterQ12;
1197	aenmNames[iReg++] = WHvArm64RegisterQ13;
1198	aenmNames[iReg++] = WHvArm64RegisterQ14;
1199	aenmNames[iReg++] = WHvArm64RegisterQ15;
1200
1201	aenmNames[iReg++] = WHvArm64RegisterQ16;
1202	aenmNames[iReg++] = WHvArm64RegisterQ17;
1203	aenmNames[iReg++] = WHvArm64RegisterQ18;
1204	aenmNames[iReg++] = WHvArm64RegisterQ19;
1205	aenmNames[iReg++] = WHvArm64RegisterQ20;
1206	aenmNames[iReg++] = WHvArm64RegisterQ21;
1207	aenmNames[iReg++] = WHvArm64RegisterQ22;
1208	aenmNames[iReg++] = WHvArm64RegisterQ23;
1209	aenmNames[iReg++] = WHvArm64RegisterQ24;
1210	aenmNames[iReg++] = WHvArm64RegisterQ25;
1211	aenmNames[iReg++] = WHvArm64RegisterQ26;
1212	aenmNames[iReg++] = WHvArm64RegisterQ27;
1213	aenmNames[iReg++] = WHvArm64RegisterQ28;
1214	aenmNames[iReg++] = WHvArm64RegisterQ29;
1215	aenmNames[iReg++] = WHvArm64RegisterQ30;
1216	aenmNames[iReg++] = WHvArm64RegisterQ31;
1217	}
1218	if (fWhat & CPUMCTX_EXTRN_FPCR)
1219	aenmNames[iReg++] = WHvArm64RegisterFpcr;
1220	if (fWhat & CPUMCTX_EXTRN_FPSR)
1221	aenmNames[iReg++] = WHvArm64RegisterFpsr;
1222
1223	/* System registers. */
1224	if (fWhat & CPUMCTX_EXTRN_SYSREG_MISC)
1225	{
1226	aenmNames[iReg++] = WHvArm64RegisterVbarEl1;
1227	aenmNames[iReg++] = WHvArm64RegisterEsrEl1;
1228	aenmNames[iReg++] = WHvArm64RegisterFarEl1;
1229	/** @todo */
1230	}
1231
1232	#if 0
1233	if (fWhat & CPUMCTX_EXTRN_SYSREG_DEBUG)
1234	{
1235	aenmNames[iReg++] = WHvArm64RegisterDbgbcr0El1;
1236	/** @todo */
1237	}
1238	#endif
1239
1240	if (fWhat & CPUMCTX_EXTRN_SYSREG_PAUTH_KEYS)
1241	{
1242	aenmNames[iReg++] = WHvArm64RegisterApdAKeyHiEl1;
1243	/** @todo */
1244	}
1245
1246	size_t const cRegs = iReg;
1247	Assert(cRegs < RT_ELEMENTS(aenmNames));
1248
1249	/*
1250	* Get the registers.
1251	*/
1252	WHV_REGISTER_VALUE aValues[128];
1253	RT_ZERO(aValues);
1254	Assert(RT_ELEMENTS(aValues) >= cRegs);
1255	Assert(RT_ELEMENTS(aenmNames) >= cRegs);
1256	HRESULT hrc = WHvGetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, aenmNames, (uint32_t)cRegs, aValues);
1257	AssertLogRelMsgReturn(SUCCEEDED(hrc),
1258	("WHvGetVirtualProcessorRegisters(%p, %u,,%u,) -> %Rhrc (Last=%#x/%u)\n",
1259	pVM->nem.s.hPartition, pVCpu->idCpu, cRegs, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
1260	, VERR_NEM_GET_REGISTERS_FAILED);
1261
1262	iReg = 0;
1263	#define GET_REG64(a_DstVar, a_enmName) do { \
1264	Assert(aenmNames[iReg] == (a_enmName)); \
1265	(a_DstVar).x = aValues[iReg].Reg64; \
1266	iReg++; \
1267	} while (0)
1268	#define GET_REG64_RAW(a_DstVar, a_enmName) do { \
1269	Assert(aenmNames[iReg] == (a_enmName)); \
1270	(a_DstVar) = aValues[iReg].Reg64; \
1271	iReg++; \
1272	} while (0)
1273	#define GET_SYSREG64(a_DstVar, a_enmName) do { \
1274	Assert(aenmNames[iReg] == (a_enmName)); \
1275	(a_DstVar).u64 = aValues[iReg].Reg64; \
1276	iReg++; \
1277	} while (0)
1278	#define GET_REG128(a_DstVar, a_enmName) do { \
1279	Assert(aenmNames[iReg] == a_enmName); \
1280	(a_DstVar).au64[0] = aValues[iReg].Reg128.Low64; \
1281	(a_DstVar).au64[1] = aValues[iReg].Reg128.High64; \
1282	iReg++; \
1283	} while (0)
1284
1285	/* GPRs */
1286	if (fWhat & CPUMCTX_EXTRN_GPRS_MASK)
1287	{
1288	if (fWhat & CPUMCTX_EXTRN_X0)
1289	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[0], WHvArm64RegisterX0);
1290	if (fWhat & CPUMCTX_EXTRN_X1)
1291	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[1], WHvArm64RegisterX1);
1292	if (fWhat & CPUMCTX_EXTRN_X2)
1293	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[2], WHvArm64RegisterX2);
1294	if (fWhat & CPUMCTX_EXTRN_X3)
1295	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[3], WHvArm64RegisterX3);
1296	if (fWhat & CPUMCTX_EXTRN_X4_X28)
1297	{
1298	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[4], WHvArm64RegisterX4);
1299	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[5], WHvArm64RegisterX5);
1300	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[6], WHvArm64RegisterX6);
1301	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[7], WHvArm64RegisterX7);
1302	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[8], WHvArm64RegisterX8);
1303	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[9], WHvArm64RegisterX9);
1304	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[10], WHvArm64RegisterX10);
1305	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[11], WHvArm64RegisterX11);
1306	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[12], WHvArm64RegisterX12);
1307	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[13], WHvArm64RegisterX13);
1308	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[14], WHvArm64RegisterX14);
1309	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[15], WHvArm64RegisterX15);
1310	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[16], WHvArm64RegisterX16);
1311	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[17], WHvArm64RegisterX17);
1312	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[18], WHvArm64RegisterX18);
1313	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[19], WHvArm64RegisterX19);
1314	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[20], WHvArm64RegisterX20);
1315	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[21], WHvArm64RegisterX21);
1316	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[22], WHvArm64RegisterX22);
1317	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[23], WHvArm64RegisterX23);
1318	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[24], WHvArm64RegisterX24);
1319	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[25], WHvArm64RegisterX25);
1320	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[26], WHvArm64RegisterX26);
1321	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[27], WHvArm64RegisterX27);
1322	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[28], WHvArm64RegisterX28);
1323	}
1324	if (fWhat & CPUMCTX_EXTRN_LR)
1325	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[30], WHvArm64RegisterLr);
1326	if (fWhat & CPUMCTX_EXTRN_FP)
1327	GET_REG64(pVCpu->cpum.GstCtx.aGRegs[29], WHvArm64RegisterFp);
1328	}
1329
1330	/* RIP & Flags */
1331	if (fWhat & CPUMCTX_EXTRN_PC)
1332	GET_REG64_RAW(pVCpu->cpum.GstCtx.Pc.u64, WHvArm64RegisterPc);
1333	if (fWhat & CPUMCTX_EXTRN_PSTATE)
1334	GET_REG64_RAW(pVCpu->cpum.GstCtx.fPState, WHvArm64RegisterPstate);
1335	if (fWhat & CPUMCTX_EXTRN_SPSR)
1336	GET_SYSREG64(pVCpu->cpum.GstCtx.Spsr, WHvArm64RegisterSpsrEl1);
1337	if (fWhat & CPUMCTX_EXTRN_ELR)
1338	GET_SYSREG64(pVCpu->cpum.GstCtx.Elr, WHvArm64RegisterElrEl1);
1339	if (fWhat & CPUMCTX_EXTRN_SP)
1340	{
1341	GET_SYSREG64(pVCpu->cpum.GstCtx.aSpReg[0], WHvArm64RegisterSpEl0);
1342	GET_SYSREG64(pVCpu->cpum.GstCtx.aSpReg[1], WHvArm64RegisterSpEl1);
1343	}
1344	if (fWhat & CPUMCTX_EXTRN_SCTLR_TCR_TTBR)
1345	{
1346	GET_SYSREG64(pVCpu->cpum.GstCtx.Sctlr, WHvArm64RegisterSctlrEl1);
1347	GET_SYSREG64(pVCpu->cpum.GstCtx.Tcr, WHvArm64RegisterTcrEl1);
1348	GET_SYSREG64(pVCpu->cpum.GstCtx.Ttbr0, WHvArm64RegisterTtbr0El1);
1349	GET_SYSREG64(pVCpu->cpum.GstCtx.Ttbr1, WHvArm64RegisterTtbr1El1);
1350	}
1351
1352	/* Vector state. */
1353	if (fWhat & CPUMCTX_EXTRN_V0_V31)
1354	{
1355	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[0], WHvArm64RegisterQ0);
1356	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[1], WHvArm64RegisterQ1);
1357	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[2], WHvArm64RegisterQ2);
1358	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[3], WHvArm64RegisterQ3);
1359	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[4], WHvArm64RegisterQ4);
1360	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[5], WHvArm64RegisterQ5);
1361	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[6], WHvArm64RegisterQ6);
1362	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[7], WHvArm64RegisterQ7);
1363	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[8], WHvArm64RegisterQ8);
1364	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[9], WHvArm64RegisterQ9);
1365	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[10], WHvArm64RegisterQ10);
1366	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[11], WHvArm64RegisterQ11);
1367	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[12], WHvArm64RegisterQ12);
1368	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[13], WHvArm64RegisterQ13);
1369	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[14], WHvArm64RegisterQ14);
1370	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[15], WHvArm64RegisterQ15);
1371
1372	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[16], WHvArm64RegisterQ16);
1373	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[17], WHvArm64RegisterQ17);
1374	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[18], WHvArm64RegisterQ18);
1375	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[19], WHvArm64RegisterQ19);
1376	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[20], WHvArm64RegisterQ20);
1377	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[21], WHvArm64RegisterQ21);
1378	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[22], WHvArm64RegisterQ22);
1379	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[23], WHvArm64RegisterQ23);
1380	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[24], WHvArm64RegisterQ24);
1381	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[25], WHvArm64RegisterQ25);
1382	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[26], WHvArm64RegisterQ26);
1383	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[27], WHvArm64RegisterQ27);
1384	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[28], WHvArm64RegisterQ28);
1385	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[29], WHvArm64RegisterQ29);
1386	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[30], WHvArm64RegisterQ30);
1387	GET_REG128(pVCpu->cpum.GstCtx.aVRegs[31], WHvArm64RegisterQ31);
1388	}
1389	if (fWhat & CPUMCTX_EXTRN_FPCR)
1390	GET_REG64_RAW(pVCpu->cpum.GstCtx.fpcr, WHvArm64RegisterFpcr);
1391	if (fWhat & CPUMCTX_EXTRN_FPSR)
1392	GET_REG64_RAW(pVCpu->cpum.GstCtx.fpsr, WHvArm64RegisterFpsr);
1393
1394	/* System registers. */
1395	if (fWhat & CPUMCTX_EXTRN_SYSREG_MISC)
1396	{
1397	GET_SYSREG64(pVCpu->cpum.GstCtx.VBar, WHvArm64RegisterVbarEl1);
1398	GET_SYSREG64(pVCpu->cpum.GstCtx.Esr, WHvArm64RegisterEsrEl1);
1399	GET_SYSREG64(pVCpu->cpum.GstCtx.Far, WHvArm64RegisterFarEl1);
1400	/** @todo */
1401	}
1402
1403	#if 0
1404	if (fWhat & CPUMCTX_EXTRN_SYSREG_DEBUG)
1405	{
1406	GET_SYSREG64(pVCpu->cpum.GstCtx.aBp[0].Ctrl, WHvArm64RegisterDbgbcr0El1);
1407	/** @todo */
1408	}
1409	#endif
1410
1411	if (fWhat & CPUMCTX_EXTRN_SYSREG_PAUTH_KEYS)
1412	{
1413	GET_SYSREG64(pVCpu->cpum.GstCtx.Apda.High, WHvArm64RegisterApdAKeyHiEl1);
1414	/** @todo */
1415	}
1416
1417	/* Almost done, just update extrn flags. */
1418	pVCpu->cpum.GstCtx.fExtrn &= ~fWhat;
1419	if (!(pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_ALL))
1420	pVCpu->cpum.GstCtx.fExtrn = 0;
1421
1422	return VINF_SUCCESS;
1423	}
1424
1425
1426	/**
1427	* Interface for importing state on demand (used by IEM).
1428	*
1429	* @returns VBox status code.
1430	* @param pVCpu The cross context CPU structure.
1431	* @param fWhat What to import, CPUMCTX_EXTRN_XXX.
1432	*/
1433	VMM_INT_DECL(int) NEMImportStateOnDemand(PVMCPUCC pVCpu, uint64_t fWhat)
1434	{
1435	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatImportOnDemand);
1436	return nemHCWinCopyStateFromHyperV(pVCpu->pVMR3, pVCpu, fWhat);
1437	}
1438
1439
1440	/**
1441	* Query the CPU tick counter and optionally the TSC_AUX MSR value.
1442	*
1443	* @returns VBox status code.
1444	* @param pVCpu The cross context CPU structure.
1445	* @param pcTicks Where to return the CPU tick count.
1446	* @param puAux Where to return the TSC_AUX register value.
1447	*/
1448	VMM_INT_DECL(int) NEMHCQueryCpuTick(PVMCPUCC pVCpu, uint64_t pcTicks, uint32_t puAux)
1449	{
1450	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatQueryCpuTick);
1451
1452	PVMCC pVM = pVCpu->CTX_SUFF(pVM);
1453	VMCPU_ASSERT_EMT_RETURN(pVCpu, VERR_VM_THREAD_NOT_EMT);
1454	AssertReturn(VM_IS_NEM_ENABLED(pVM), VERR_NEM_IPE_9);
1455
1456	#if 0 /** @todo */
1457	/* Call the offical API. */
1458	WHV_REGISTER_NAME aenmNames[2] = { WHvX64RegisterTsc, WHvX64RegisterTscAux };
1459	WHV_REGISTER_VALUE aValues[2] = { { {0, 0} }, { {0, 0} } };
1460	Assert(RT_ELEMENTS(aenmNames) == RT_ELEMENTS(aValues));
1461	HRESULT hrc = WHvGetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, aenmNames, 2, aValues);
1462	AssertLogRelMsgReturn(SUCCEEDED(hrc),
1463	("WHvGetVirtualProcessorRegisters(%p, %u,{tsc,tsc_aux},2,) -> %Rhrc (Last=%#x/%u)\n",
1464	pVM->nem.s.hPartition, pVCpu->idCpu, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
1465	, VERR_NEM_GET_REGISTERS_FAILED);
1466	*pcTicks = aValues[0].Reg64;
1467	if (puAux)
1468	*puAux = pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_TSC_AUX ? aValues[1].Reg64 : CPUMGetGuestTscAux(pVCpu);
1469	#endif
1470	return VINF_SUCCESS;
1471	}
1472
1473
1474	/**
1475	* Resumes CPU clock (TSC) on all virtual CPUs.
1476	*
1477	* This is called by TM when the VM is started, restored, resumed or similar.
1478	*
1479	* @returns VBox status code.
1480	* @param pVM The cross context VM structure.
1481	* @param pVCpu The cross context CPU structure of the calling EMT.
1482	* @param uPausedTscValue The TSC value at the time of pausing.
1483	*/
1484	VMM_INT_DECL(int) NEMHCResumeCpuTickOnAll(PVMCC pVM, PVMCPUCC pVCpu, uint64_t uPausedTscValue)
1485	{
1486	VMCPU_ASSERT_EMT_RETURN(pVCpu, VERR_VM_THREAD_NOT_EMT);
1487	AssertReturn(VM_IS_NEM_ENABLED(pVM), VERR_NEM_IPE_9);
1488
1489	/*
1490	* Call the offical API to do the job.
1491	*/
1492	if (pVM->cCpus > 1)
1493	RTThreadYield(); /* Try decrease the chance that we get rescheduled in the middle. */
1494
1495	#if 0 /** @todo */
1496	/* Start with the first CPU. */
1497	WHV_REGISTER_NAME enmName = WHvX64RegisterTsc;
1498	WHV_REGISTER_VALUE Value = { {0, 0} };
1499	Value.Reg64 = uPausedTscValue;
1500	uint64_t const uFirstTsc = ASMReadTSC();
1501	HRESULT hrc = WHvSetVirtualProcessorRegisters(pVM->nem.s.hPartition, 0 /iCpu/, &enmName, 1, &Value);
1502	AssertLogRelMsgReturn(SUCCEEDED(hrc),
1503	("WHvSetVirtualProcessorRegisters(%p, 0,{tsc},2,%#RX64) -> %Rhrc (Last=%#x/%u)\n",
1504	pVM->nem.s.hPartition, uPausedTscValue, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
1505	, VERR_NEM_SET_TSC);
1506
1507	/* Do the other CPUs, adjusting for elapsed TSC and keeping finger crossed
1508	that we don't introduce too much drift here. */
1509	for (VMCPUID iCpu = 1; iCpu < pVM->cCpus; iCpu++)
1510	{
1511	Assert(enmName == WHvX64RegisterTsc);
1512	const uint64_t offDelta = (ASMReadTSC() - uFirstTsc);
1513	Value.Reg64 = uPausedTscValue + offDelta;
1514	hrc = WHvSetVirtualProcessorRegisters(pVM->nem.s.hPartition, iCpu, &enmName, 1, &Value);
1515	AssertLogRelMsgReturn(SUCCEEDED(hrc),
1516	("WHvSetVirtualProcessorRegisters(%p, 0,{tsc},2,%#RX64 + %#RX64) -> %Rhrc (Last=%#x/%u)\n",
1517	pVM->nem.s.hPartition, iCpu, uPausedTscValue, offDelta, hrc, RTNtLastStatusValue(), RTNtLastErrorValue())
1518	, VERR_NEM_SET_TSC);
1519	}
1520	#endif
1521
1522	return VINF_SUCCESS;
1523	}
1524
1525
1526	#ifdef LOG_ENABLED
1527	/**
1528	* Logs the current CPU state.
1529	*/
1530	static void nemR3WinLogState(PVMCC pVM, PVMCPUCC pVCpu)
1531	{
1532	if (LogIs3Enabled())
1533	{
1534	char szRegs[4096];
1535	DBGFR3RegPrintf(pVM->pUVM, pVCpu->idCpu, &szRegs[0], sizeof(szRegs),
1536	"x0=%016VR{x0} x1=%016VR{x1} x2=%016VR{x2} x3=%016VR{x3}\n"
1537	"x4=%016VR{x4} x5=%016VR{x5} x6=%016VR{x6} x7=%016VR{x7}\n"
1538	"x8=%016VR{x8} x9=%016VR{x9} x10=%016VR{x10} x11=%016VR{x11}\n"
1539	"x12=%016VR{x12} x13=%016VR{x13} x14=%016VR{x14} x15=%016VR{x15}\n"
1540	"x16=%016VR{x16} x17=%016VR{x17} x18=%016VR{x18} x19=%016VR{x19}\n"
1541	"x20=%016VR{x20} x21=%016VR{x21} x22=%016VR{x22} x23=%016VR{x23}\n"
1542	"x24=%016VR{x24} x25=%016VR{x25} x26=%016VR{x26} x27=%016VR{x27}\n"
1543	"x28=%016VR{x28} x29=%016VR{x29} x30=%016VR{x30}\n"
1544	"pc=%016VR{pc} pstate=%016VR{pstate}\n"
1545	"sp_el0=%016VR{sp_el0} sp_el1=%016VR{sp_el1} elr_el1=%016VR{elr_el1}\n"
1546	"sctlr_el1=%016VR{sctlr_el1} tcr_el1=%016VR{tcr_el1}\n"
1547	"ttbr0_el1=%016VR{ttbr0_el1} ttbr1_el1=%016VR{ttbr1_el1}\n"
1548	"vbar_el1=%016VR{vbar_el1}\n"
1549	);
1550	char szInstr[256]; RT_ZERO(szInstr);
1551	#if 0
1552	DBGFR3DisasInstrEx(pVM->pUVM, pVCpu->idCpu, 0, 0,
1553	DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_DEFAULT_MODE,
1554	szInstr, sizeof(szInstr), NULL);
1555	#endif
1556	Log3(("%s%s\n", szRegs, szInstr));
1557	}
1558	}
1559	#endif /* LOG_ENABLED */
1560
1561
1562	/**
1563	* Copies register state from the (common) exit context.
1564	*
1565	* ASSUMES no state copied yet.
1566	*
1567	* @param pVCpu The cross context per CPU structure.
1568	* @param pMsgHdr The common message header.
1569	*/
1570	DECLINLINE(void) nemR3WinCopyStateFromArmHeader(PVMCPUCC pVCpu, WHV_INTERCEPT_MESSAGE_HEADER const *pMsgHdr)
1571	{
1572	Assert( (pVCpu->cpum.GstCtx.fExtrn & (CPUMCTX_EXTRN_PC \| CPUMCTX_EXTRN_PSTATE))
1573	== (CPUMCTX_EXTRN_PC \| CPUMCTX_EXTRN_PSTATE));
1574
1575	pVCpu->cpum.GstCtx.Pc.u64 = pMsgHdr->Pc;
1576	pVCpu->cpum.GstCtx.fPState = pMsgHdr->Cpsr;
1577
1578	pVCpu->cpum.GstCtx.fExtrn &= ~(CPUMCTX_EXTRN_PC \| CPUMCTX_EXTRN_PSTATE);
1579	}
1580
1581
1582	/**
1583	* State to pass between nemHCWinHandleMemoryAccess / nemR3WinWHvHandleMemoryAccess
1584	* and nemHCWinHandleMemoryAccessPageCheckerCallback.
1585	*/
1586	typedef struct NEMHCWINHMACPCCSTATE
1587	{
1588	/** Input: Write access. */
1589	bool fWriteAccess;
1590	/** Output: Set if we did something. */
1591	bool fDidSomething;
1592	/** Output: Set it we should resume. */
1593	bool fCanResume;
1594	} NEMHCWINHMACPCCSTATE;
1595
1596	/**
1597	* @callback_method_impl{FNPGMPHYSNEMCHECKPAGE,
1598	* Worker for nemR3WinHandleMemoryAccess; pvUser points to a
1599	* NEMHCWINHMACPCCSTATE structure. }
1600	*/
1601	NEM_TMPL_STATIC DECLCALLBACK(int)
1602	nemHCWinHandleMemoryAccessPageCheckerCallback(PVMCC pVM, PVMCPUCC pVCpu, RTGCPHYS GCPhys, PPGMPHYSNEMPAGEINFO pInfo, void *pvUser)
1603	{
1604	NEMHCWINHMACPCCSTATE pState = (NEMHCWINHMACPCCSTATE )pvUser;
1605	pState->fDidSomething = false;
1606	pState->fCanResume = false;
1607
1608	/* If A20 is disabled, we may need to make another query on the masked
1609	page to get the correct protection information. */
1610	uint8_t u2State = pInfo->u2NemState;
1611	RTGCPHYS GCPhysSrc = GCPhys;
1612
1613	/*
1614	* Consolidate current page state with actual page protection and access type.
1615	* We don't really consider downgrades here, as they shouldn't happen.
1616	*/
1617	int rc;
1618	switch (u2State)
1619	{
1620	case NEM_WIN_PAGE_STATE_UNMAPPED:
1621	case NEM_WIN_PAGE_STATE_NOT_SET:
1622	if (pInfo->fNemProt == NEM_PAGE_PROT_NONE)
1623	{
1624	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #1\n", GCPhys));
1625	return VINF_SUCCESS;
1626	}
1627
1628	/* Don't bother remapping it if it's a write request to a non-writable page. */
1629	if ( pState->fWriteAccess
1630	&& !(pInfo->fNemProt & NEM_PAGE_PROT_WRITE))
1631	{
1632	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #1w\n", GCPhys));
1633	return VINF_SUCCESS;
1634	}
1635
1636	/* Map the page. */
1637	rc = nemHCNativeSetPhysPage(pVM,
1638	pVCpu,
1639	GCPhysSrc & ~(RTGCPHYS)X86_PAGE_OFFSET_MASK,
1640	GCPhys & ~(RTGCPHYS)X86_PAGE_OFFSET_MASK,
1641	pInfo->fNemProt,
1642	&u2State,
1643	true /fBackingState/);
1644	pInfo->u2NemState = u2State;
1645	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - synced => %s + %Rrc\n",
1646	GCPhys, g_apszPageStates[u2State], rc));
1647	pState->fDidSomething = true;
1648	pState->fCanResume = true;
1649	return rc;
1650
1651	case NEM_WIN_PAGE_STATE_READABLE:
1652	if ( !(pInfo->fNemProt & NEM_PAGE_PROT_WRITE)
1653	&& (pInfo->fNemProt & (NEM_PAGE_PROT_READ \| NEM_PAGE_PROT_EXECUTE)))
1654	{
1655	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #2\n", GCPhys));
1656	return VINF_SUCCESS;
1657	}
1658
1659	break;
1660
1661	case NEM_WIN_PAGE_STATE_WRITABLE:
1662	if (pInfo->fNemProt & NEM_PAGE_PROT_WRITE)
1663	{
1664	if (pInfo->u2OldNemState == NEM_WIN_PAGE_STATE_WRITABLE)
1665	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #3a\n", GCPhys));
1666	else
1667	{
1668	pState->fCanResume = true;
1669	Log4(("nemHCWinHandleMemoryAccessPageCheckerCallback: %RGp - #3b (%s -> %s)\n",
1670	GCPhys, g_apszPageStates[pInfo->u2OldNemState], g_apszPageStates[u2State]));
1671	}
1672	return VINF_SUCCESS;
1673	}
1674	break;
1675
1676	default:
1677	AssertLogRelMsgFailedReturn(("u2State=%#x\n", u2State), VERR_NEM_IPE_4);
1678	}
1679
1680	/*
1681	* Unmap and restart the instruction.
1682	* If this fails, which it does every so often, just unmap everything for now.
1683	*/
1684	/** @todo figure out whether we mess up the state or if it's WHv. */
1685	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
1686	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhys, X86_PAGE_SIZE);
1687	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
1688	if (SUCCEEDED(hrc))
1689	{
1690	pState->fDidSomething = true;
1691	pState->fCanResume = true;
1692	pInfo->u2NemState = NEM_WIN_PAGE_STATE_UNMAPPED;
1693	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPage);
1694	uint32_t cMappedPages = ASMAtomicDecU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
1695	Log5(("NEM GPA unmapped/exit: %RGp (was %s, cMappedPages=%u)\n", GCPhys, g_apszPageStates[u2State], cMappedPages));
1696	return VINF_SUCCESS;
1697	}
1698	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
1699	LogRel(("nemHCWinHandleMemoryAccessPageCheckerCallback/unmap: GCPhysDst=%RGp %s hrc=%Rhrc (%#x)\n",
1700	GCPhys, g_apszPageStates[u2State], hrc, hrc));
1701	return VERR_NEM_UNMAP_PAGES_FAILED;
1702	}
1703
1704
1705	/**
1706	* Returns the byte size from the given access SAS value.
1707	*
1708	* @returns Number of bytes to transfer.
1709	* @param uSas The SAS value to convert.
1710	*/
1711	DECLINLINE(size_t) nemR3WinGetByteCountFromSas(uint8_t uSas)
1712	{
1713	switch (uSas)
1714	{
1715	case ARMV8_EC_ISS_DATA_ABRT_SAS_BYTE: return sizeof(uint8_t);
1716	case ARMV8_EC_ISS_DATA_ABRT_SAS_HALFWORD: return sizeof(uint16_t);
1717	case ARMV8_EC_ISS_DATA_ABRT_SAS_WORD: return sizeof(uint32_t);
1718	case ARMV8_EC_ISS_DATA_ABRT_SAS_DWORD: return sizeof(uint64_t);
1719	default:
1720	AssertReleaseFailed();
1721	}
1722
1723	return 0;
1724	}
1725
1726
1727	/**
1728	* Sets the given general purpose register to the given value.
1729	*
1730	* @param pVCpu The cross context virtual CPU structure of the
1731	* calling EMT.
1732	* @param uReg The register index.
1733	* @param f64BitReg Flag whether to operate on a 64-bit or 32-bit register.
1734	* @param fSignExtend Flag whether to sign extend the value.
1735	* @param u64Val The value.
1736	*/
1737	DECLINLINE(void) nemR3WinSetGReg(PVMCPU pVCpu, uint8_t uReg, bool f64BitReg, bool fSignExtend, uint64_t u64Val)
1738	{
1739	AssertReturnVoid(uReg < 31);
1740
1741	if (f64BitReg)
1742	pVCpu->cpum.GstCtx.aGRegs[uReg].x = fSignExtend ? (int64_t)u64Val : u64Val;
1743	else
1744	pVCpu->cpum.GstCtx.aGRegs[uReg].w = fSignExtend ? (int32_t)u64Val : u64Val; /** @todo Does this clear the upper half on real hardware? */
1745
1746	/* Mark the register as not extern anymore. */
1747	switch (uReg)
1748	{
1749	case 0:
1750	pVCpu->cpum.GstCtx.fExtrn &= ~CPUMCTX_EXTRN_X0;
1751	break;
1752	case 1:
1753	pVCpu->cpum.GstCtx.fExtrn &= ~CPUMCTX_EXTRN_X1;
1754	break;
1755	case 2:
1756	pVCpu->cpum.GstCtx.fExtrn &= ~CPUMCTX_EXTRN_X2;
1757	break;
1758	case 3:
1759	pVCpu->cpum.GstCtx.fExtrn &= ~CPUMCTX_EXTRN_X3;
1760	break;
1761	default:
1762	AssertRelease(!(pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_X4_X28));
1763	/** @todo We need to import all missing registers in order to clear this flag (or just set it in HV from here). */
1764	}
1765	}
1766
1767
1768	/**
1769	* Gets the given general purpose register and returns the value.
1770	*
1771	* @returns Value from the given register.
1772	* @param pVCpu The cross context virtual CPU structure of the
1773	* calling EMT.
1774	* @param uReg The register index.
1775	*/
1776	DECLINLINE(uint64_t) nemR3WinGetGReg(PVMCPU pVCpu, uint8_t uReg)
1777	{
1778	AssertReturn(uReg <= ARMV8_AARCH64_REG_ZR, 0);
1779
1780	if (uReg == ARMV8_AARCH64_REG_ZR)
1781	return 0;
1782
1783	/** @todo Import the register if extern. */
1784	AssertRelease(!(pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_GPRS_MASK));
1785
1786	return pVCpu->cpum.GstCtx.aGRegs[uReg].x;
1787	}
1788
1789
1790	/**
1791	* Deals with memory access exits (WHvRunVpExitReasonMemoryAccess).
1792	*
1793	* @returns Strict VBox status code.
1794	* @param pVM The cross context VM structure.
1795	* @param pVCpu The cross context per CPU structure.
1796	* @param pExit The VM exit information to handle.
1797	* @sa nemHCWinHandleMessageMemory
1798	*/
1799	NEM_TMPL_STATIC VBOXSTRICTRC
1800	nemR3WinHandleExitMemory(PVMCC pVM, PVMCPUCC pVCpu, WHV_RUN_VP_EXIT_CONTEXT const *pExit)
1801	{
1802	uint64_t const uHostTsc = ASMReadTSC();
1803	Assert(pExit->MemoryAccess.Header.InterceptAccessType != 3);
1804
1805	/*
1806	* Ask PGM for information about the given GCPhys. We need to check if we're
1807	* out of sync first.
1808	*/
1809	WHV_INTERCEPT_MESSAGE_HEADER const *pHdr = &pExit->MemoryAccess.Header;
1810	NEMHCWINHMACPCCSTATE State = { pExit->MemoryAccess.Header.InterceptAccessType == WHvMemoryAccessWrite, false, false };
1811	PGMPHYSNEMPAGEINFO Info;
1812	int rc = PGMPhysNemPageInfoChecker(pVM, pVCpu, pExit->MemoryAccess.Gpa, State.fWriteAccess, &Info,
1813	nemHCWinHandleMemoryAccessPageCheckerCallback, &State);
1814	if (RT_SUCCESS(rc))
1815	{
1816	if (Info.fNemProt & ( pExit->MemoryAccess.Header.InterceptAccessType == WHvMemoryAccessWrite
1817	? NEM_PAGE_PROT_WRITE : NEM_PAGE_PROT_READ))
1818	{
1819	if (State.fCanResume)
1820	{
1821	Log4(("MemExit/%u: %08RX64: %RGp (=>%RHp) %s fProt=%u%s%s%s; restarting (%s)\n",
1822	pVCpu->idCpu, pHdr->Pc,
1823	pExit->MemoryAccess.Gpa, Info.HCPhys, g_apszPageStates[Info.u2NemState], Info.fNemProt,
1824	Info.fHasHandlers ? " handlers" : "", Info.fZeroPage ? " zero-pg" : "",
1825	State.fDidSomething ? "" : " no-change", g_apszHvInterceptAccessTypes[pExit->MemoryAccess.Header.InterceptAccessType]));
1826	EMHistoryAddExit(pVCpu, EMEXIT_MAKE_FT(EMEXIT_F_KIND_NEM, NEMEXITTYPE_MEMORY_ACCESS),
1827	pHdr->Pc, uHostTsc);
1828	return VINF_SUCCESS;
1829	}
1830	}
1831	Log4(("MemExit/%u: %08RX64: %RGp (=>%RHp) %s fProt=%u%s%s%s; emulating (%s)\n",
1832	pVCpu->idCpu, pHdr->Pc,
1833	pExit->MemoryAccess.Gpa, Info.HCPhys, g_apszPageStates[Info.u2NemState], Info.fNemProt,
1834	Info.fHasHandlers ? " handlers" : "", Info.fZeroPage ? " zero-pg" : "",
1835	State.fDidSomething ? "" : " no-change", g_apszHvInterceptAccessTypes[pExit->MemoryAccess.Header.InterceptAccessType]));
1836	}
1837	else
1838	Log4(("MemExit/%u: %08RX64: %RGp rc=%Rrc%s; emulating (%s)\n",
1839	pVCpu->idCpu, pHdr->Pc,
1840	pExit->MemoryAccess.Gpa, rc, State.fDidSomething ? " modified-backing" : "",
1841	g_apszHvInterceptAccessTypes[pExit->MemoryAccess.Header.InterceptAccessType]));
1842
1843	/*
1844	* Emulate the memory access, either access handler or special memory.
1845	*/
1846	PCEMEXITREC pExitRec = EMHistoryAddExit(pVCpu,
1847	pExit->MemoryAccess.Header.InterceptAccessType == WHvMemoryAccessWrite
1848	? EMEXIT_MAKE_FT(EMEXIT_F_KIND_EM, EMEXITTYPE_MMIO_WRITE)
1849	: EMEXIT_MAKE_FT(EMEXIT_F_KIND_EM, EMEXITTYPE_MMIO_READ),
1850	pHdr->Pc, uHostTsc);
1851	//nemR3WinCopyStateFromArmHeader(pVCpu, &pExit->MemoryAccess.Header);
1852	rc = nemHCWinCopyStateFromHyperV(pVM, pVCpu, IEM_CPUMCTX_EXTRN_MUST_MASK);
1853	AssertRCReturn(rc, rc);
1854
1855	uint8_t const cbInstr = pExit->MemoryAccess.InstructionByteCount;
1856	RTGCPTR const GCPtrVa = pExit->MemoryAccess.Gva;
1857	RTGCPHYS const GCPhys = pExit->MemoryAccess.Gpa;
1858	uint64_t const uIss = pExit->MemoryAccess.Syndrome;
1859	bool fIsv = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_ISV);
1860	bool fL2Fault = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_S1PTW);
1861	bool fWrite = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_WNR);
1862	bool f64BitReg = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_SF);
1863	bool fSignExtend = RT_BOOL(uIss & ARMV8_EC_ISS_DATA_ABRT_SSE);
1864	uint8_t uReg = ARMV8_EC_ISS_DATA_ABRT_SRT_GET(uIss);
1865	uint8_t uAcc = ARMV8_EC_ISS_DATA_ABRT_SAS_GET(uIss);
1866	size_t cbAcc = nemR3WinGetByteCountFromSas(uAcc);
1867	LogFlowFunc(("fIsv=%RTbool fL2Fault=%RTbool fWrite=%RTbool f64BitReg=%RTbool fSignExtend=%RTbool uReg=%u uAcc=%u GCPtrDataAbrt=%RGv GCPhys=%RGp cbInstr=%u\n",
1868	fIsv, fL2Fault, fWrite, f64BitReg, fSignExtend, uReg, uAcc, GCPtrVa, GCPhys, cbInstr));
1869
1870	RT_NOREF(fL2Fault);
1871
1872	AssertReturn(fIsv, VERR_NOT_SUPPORTED); /** @todo Implement using IEM when this should occur. */
1873
1874	EMHistoryAddExit(pVCpu,
1875	fWrite
1876	? EMEXIT_MAKE_FT(EMEXIT_F_KIND_EM, EMEXITTYPE_MMIO_WRITE)
1877	: EMEXIT_MAKE_FT(EMEXIT_F_KIND_EM, EMEXITTYPE_MMIO_READ),
1878	pVCpu->cpum.GstCtx.Pc.u64, ASMReadTSC());
1879
1880	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
1881	uint64_t u64Val = 0;
1882	if (fWrite)
1883	{
1884	u64Val = nemR3WinGetGReg(pVCpu, uReg);
1885	rcStrict = PGMPhysWrite(pVM, GCPhys, &u64Val, cbAcc, PGMACCESSORIGIN_HM);
1886	Log4(("MmioExit/%u: %08RX64: WRITE %RGp LB %u, %.*Rhxs -> rcStrict=%Rrc\n",
1887	pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc.u64, GCPhys, cbAcc, cbAcc,
1888	&u64Val, VBOXSTRICTRC_VAL(rcStrict) ));
1889	}
1890	else
1891	{
1892	rcStrict = PGMPhysRead(pVM, GCPhys, &u64Val, cbAcc, PGMACCESSORIGIN_HM);
1893	Log4(("MmioExit/%u: %08RX64: READ %RGp LB %u -> %.*Rhxs rcStrict=%Rrc\n",
1894	pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc.u64, GCPhys, cbAcc, cbAcc,
1895	&u64Val, VBOXSTRICTRC_VAL(rcStrict) ));
1896	if (rcStrict == VINF_SUCCESS)
1897	nemR3WinSetGReg(pVCpu, uReg, f64BitReg, fSignExtend, u64Val);
1898	}
1899
1900	if (rcStrict == VINF_SUCCESS)
1901	pVCpu->cpum.GstCtx.Pc.u64 += sizeof(uint32_t); /** @todo Why is InstructionByteCount always 0? */
1902
1903	return rcStrict;
1904	}
1905
1906
1907	/**
1908	* Deals with MSR access exits (WHvRunVpExitReasonUnrecoverableException).
1909	*
1910	* @returns Strict VBox status code.
1911	* @param pVM The cross context VM structure.
1912	* @param pVCpu The cross context per CPU structure.
1913	* @param pExit The VM exit information to handle.
1914	* @sa nemHCWinHandleMessageUnrecoverableException
1915	*/
1916	NEM_TMPL_STATIC VBOXSTRICTRC nemR3WinHandleExitUnrecoverableException(PVMCC pVM, PVMCPUCC pVCpu, WHV_RUN_VP_EXIT_CONTEXT const *pExit)
1917	{
1918	#if 0
1919	/*
1920	* Just copy the state we've got and handle it in the loop for now.
1921	*/
1922	nemR3WinCopyStateFromX64Header(pVCpu, &pExit->VpContext);
1923	Log(("TripleExit/%u: %04x:%08RX64/%s: RFL=%#RX64 -> VINF_EM_TRIPLE_FAULT\n", pVCpu->idCpu, pExit->VpContext.Cs.Selector,
1924	pExit->VpContext.Rip, nemR3WinExecStateToLogStr(&pExit->VpContext), pExit->VpContext.Rflags));
1925	RT_NOREF_PV(pVM);
1926	return VINF_EM_TRIPLE_FAULT;
1927	#else
1928	/*
1929	* Let IEM decide whether this is really it.
1930	*/
1931	EMHistoryAddExit(pVCpu, EMEXIT_MAKE_FT(EMEXIT_F_KIND_NEM, NEMEXITTYPE_UNRECOVERABLE_EXCEPTION),
1932	pExit->UnrecoverableException.Header.Pc, ASMReadTSC());
1933	nemR3WinCopyStateFromArmHeader(pVCpu, &pExit->UnrecoverableException.Header);
1934	AssertReleaseFailed();
1935	RT_NOREF_PV(pVM);
1936	return VINF_SUCCESS;
1937	#endif
1938	}
1939
1940
1941	/**
1942	* Handles VM exits.
1943	*
1944	* @returns Strict VBox status code.
1945	* @param pVM The cross context VM structure.
1946	* @param pVCpu The cross context per CPU structure.
1947	* @param pExit The VM exit information to handle.
1948	* @sa nemHCWinHandleMessage
1949	*/
1950	NEM_TMPL_STATIC VBOXSTRICTRC nemR3WinHandleExit(PVMCC pVM, PVMCPUCC pVCpu, WHV_RUN_VP_EXIT_CONTEXT const *pExit)
1951	{
1952	int rc = nemHCWinCopyStateFromHyperV(pVM, pVCpu, CPUMCTX_EXTRN_ALL);
1953	AssertRCReturn(rc, rc);
1954
1955	#ifdef LOG_ENABLED
1956	if (LogIs3Enabled())
1957	nemR3WinLogState(pVM, pVCpu);
1958	#endif
1959
1960	switch (pExit->ExitReason)
1961	{
1962	case WHvRunVpExitReasonUnmappedGpa:
1963	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatExitMemUnmapped);
1964	return nemR3WinHandleExitMemory(pVM, pVCpu, pExit);
1965
1966	case WHvRunVpExitReasonCanceled:
1967	Log4(("CanceledExit/%u\n", pVCpu->idCpu));
1968	return VINF_SUCCESS;
1969
1970	case WHvRunVpExitReasonUnrecoverableException:
1971	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatExitUnrecoverable);
1972	return nemR3WinHandleExitUnrecoverableException(pVM, pVCpu, pExit);
1973
1974	case WHvRunVpExitReasonUnsupportedFeature:
1975	case WHvRunVpExitReasonInvalidVpRegisterValue:
1976	LogRel(("Unimplemented exit:\n%.Rhxd\n", (int)sizeof(pExit), pExit));
1977	AssertLogRelMsgFailedReturn(("Unexpected exit on CPU #%u: %#x\n%.32Rhxd\n",
1978	pVCpu->idCpu, pExit->ExitReason, pExit), VERR_NEM_IPE_3);
1979
1980	/* Undesired exits: */
1981	case WHvRunVpExitReasonNone:
1982	default:
1983	LogRel(("Unknown exit:\n%.Rhxd\n", (int)sizeof(pExit), pExit));
1984	AssertLogRelMsgFailedReturn(("Unknown exit on CPU #%u: %#x!\n", pVCpu->idCpu, pExit->ExitReason), VERR_NEM_IPE_3);
1985	}
1986	}
1987
1988
1989	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu)
1990	{
1991	LogFlow(("NEM/%u: %08RX64 pstate=%#08RX64 <=\n", pVCpu->idCpu, pVCpu->cpum.GstCtx.Pc, pVCpu->cpum.GstCtx.fPState));
1992	#ifdef LOG_ENABLED
1993	if (LogIs3Enabled())
1994	nemR3WinLogState(pVM, pVCpu);
1995	#endif
1996
1997	if (RT_UNLIKELY(!pVCpu->nem.s.fIdRegsSynced))
1998	{
1999	/*
2000	* Sync the guest ID registers which are per VM once (they are readonly and stay constant during VM lifetime).
2001	* Need to do it here and not during the init because loading a saved state might change the ID registers from what
2002	* done in the call to CPUMR3PopulateFeaturesByIdRegisters().
2003	*/
2004	PCCPUMIDREGS pIdRegsGst = NULL;
2005	int rc = CPUMR3QueryGuestIdRegs(pVM, &pIdRegsGst);
2006	AssertRCReturn(rc, rc);
2007
2008	WHV_REGISTER_NAME aenmNames[12];
2009	WHV_REGISTER_VALUE aValues[12];
2010
2011	uint32_t iReg = 0;
2012	#define ADD_REG64(a_enmName, a_uValue) do { \
2013	aenmNames[iReg] = (a_enmName); \
2014	aValues[iReg].Reg128.High64 = 0; \
2015	aValues[iReg].Reg64 = (a_uValue); \
2016	iReg++; \
2017	} while (0)
2018
2019
2020	ADD_REG64(WHvArm64RegisterIdAa64Mmfr0El1, pIdRegsGst->u64RegIdAa64Mmfr0El1);
2021	#undef ADD_REG64
2022
2023	//HRESULT hrc = WHvSetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, aenmNames, iReg, aValues);
2024	//AssertReturn(SUCCEEDED(hrc), VERR_NEM_IPE_9);
2025
2026	pVCpu->nem.s.fIdRegsSynced = true;
2027	}
2028
2029	/*
2030	* Try switch to NEM runloop state.
2031	*/
2032	if (VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC_NEM, VMCPUSTATE_STARTED))
2033	{ /* likely */ }
2034	else
2035	{
2036	VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC_NEM, VMCPUSTATE_STARTED_EXEC_NEM_CANCELED);
2037	LogFlow(("NEM/%u: returning immediately because canceled\n", pVCpu->idCpu));
2038	return VINF_SUCCESS;
2039	}
2040
2041	/*
2042	* The run loop.
2043	*
2044	* Current approach to state updating to use the sledgehammer and sync
2045	* everything every time. This will be optimized later.
2046	*/
2047	const bool fSingleStepping = DBGFIsStepping(pVCpu);
2048	// const uint32_t fCheckVmFFs = !fSingleStepping ? VM_FF_HP_R0_PRE_HM_MASK
2049	// : VM_FF_HP_R0_PRE_HM_STEP_MASK;
2050	// const uint32_t fCheckCpuFFs = !fSingleStepping ? VMCPU_FF_HP_R0_PRE_HM_MASK : VMCPU_FF_HP_R0_PRE_HM_STEP_MASK;
2051	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
2052	for (unsigned iLoop = 0;; iLoop++)
2053	{
2054	/*
2055	* Pending interrupts or such? Need to check and deal with this prior
2056	* to the state syncing.
2057	*/
2058	#if 0
2059	if (VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_INTERRUPT_FIQ \| VMCPU_FF_UPDATE_IRQ))
2060	{
2061	/* Try inject interrupt. */
2062	rcStrict = nemHCWinHandleInterruptFF(pVM, pVCpu, &pVCpu->nem.s.fDesiredInterruptWindows);
2063	if (rcStrict == VINF_SUCCESS)
2064	{ /* likely */ }
2065	else
2066	{
2067	LogFlow(("NEM/%u: breaking: nemHCWinHandleInterruptFF -> %Rrc\n", pVCpu->idCpu, VBOXSTRICTRC_VAL(rcStrict) ));
2068	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnStatus);
2069	break;
2070	}
2071	}
2072	#endif
2073
2074	/* Ensure that Hyper-V has the whole state. */
2075	int rc2 = nemHCWinCopyStateToHyperV(pVM, pVCpu);
2076	AssertRCReturn(rc2, rc2);
2077
2078	/*
2079	* Poll timers and run for a bit.
2080	*
2081	* With the VID approach (ring-0 or ring-3) we can specify a timeout here,
2082	* so we take the time of the next timer event and uses that as a deadline.
2083	* The rounding heuristics are "tuned" so that rhel5 (1K timer) will boot fine.
2084	*/
2085	/** @todo See if we cannot optimize this TMTimerPollGIP by only redoing
2086	* the whole polling job when timers have changed... */
2087	uint64_t offDeltaIgnored;
2088	uint64_t const nsNextTimerEvt = TMTimerPollGIP(pVM, pVCpu, &offDeltaIgnored); NOREF(nsNextTimerEvt);
2089	if ( !VM_FF_IS_ANY_SET(pVM, VM_FF_EMT_RENDEZVOUS \| VM_FF_TM_VIRTUAL_SYNC)
2090	&& !VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_HM_TO_R3_MASK))
2091	{
2092	if (VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC_NEM_WAIT, VMCPUSTATE_STARTED_EXEC_NEM))
2093	{
2094	#if 0 //def LOG_ENABLED
2095	if (LogIsFlowEnabled())
2096	{
2097	static const WHV_REGISTER_NAME s_aNames[6] = { WHvX64RegisterCs, WHvX64RegisterRip, WHvX64RegisterRflags,
2098	WHvX64RegisterSs, WHvX64RegisterRsp, WHvX64RegisterCr0 };
2099	WHV_REGISTER_VALUE aRegs[RT_ELEMENTS(s_aNames)] = { {{0, 0} } };
2100	WHvGetVirtualProcessorRegisters(pVM->nem.s.hPartition, pVCpu->idCpu, s_aNames, RT_ELEMENTS(s_aNames), aRegs);
2101	LogFlow(("NEM/%u: Entry @ %04x:%08RX64 IF=%d EFL=%#RX64 SS:RSP=%04x:%08RX64 cr0=%RX64\n",
2102	pVCpu->idCpu, aRegs[0].Segment.Selector, aRegs[1].Reg64, RT_BOOL(aRegs[2].Reg64 & X86_EFL_IF),
2103	aRegs[2].Reg64, aRegs[3].Segment.Selector, aRegs[4].Reg64, aRegs[5].Reg64));
2104	}
2105	#endif
2106	WHV_RUN_VP_EXIT_CONTEXT ExitReason = {0};
2107	TMNotifyStartOfExecution(pVM, pVCpu);
2108
2109	HRESULT hrc = WHvRunVirtualProcessor(pVM->nem.s.hPartition, pVCpu->idCpu, &ExitReason, sizeof(ExitReason));
2110
2111	VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC_NEM, VMCPUSTATE_STARTED_EXEC_NEM_WAIT);
2112	TMNotifyEndOfExecution(pVM, pVCpu, ASMReadTSC());
2113	#ifdef LOG_ENABLED
2114	LogFlow(("NEM/%u: Exit @ @todo Reason=%#x\n", pVCpu->idCpu, ExitReason.ExitReason));
2115	#endif
2116	if (SUCCEEDED(hrc))
2117	{
2118	/*
2119	* Deal with the message.
2120	*/
2121	rcStrict = nemR3WinHandleExit(pVM, pVCpu, &ExitReason);
2122	if (rcStrict == VINF_SUCCESS)
2123	{ /* hopefully likely */ }
2124	else
2125	{
2126	LogFlow(("NEM/%u: breaking: nemHCWinHandleMessage -> %Rrc\n", pVCpu->idCpu, VBOXSTRICTRC_VAL(rcStrict) ));
2127	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnStatus);
2128	break;
2129	}
2130	}
2131	else
2132	AssertLogRelMsgFailedReturn(("WHvRunVirtualProcessor failed for CPU #%u: %#x (%u)\n",
2133	pVCpu->idCpu, hrc, GetLastError()),
2134	VERR_NEM_IPE_0);
2135
2136	/*
2137	* If no relevant FFs are pending, loop.
2138	*/
2139	if ( !VM_FF_IS_ANY_SET( pVM, !fSingleStepping ? VM_FF_HP_R0_PRE_HM_MASK : VM_FF_HP_R0_PRE_HM_STEP_MASK)
2140	&& !VMCPU_FF_IS_ANY_SET(pVCpu, !fSingleStepping ? VMCPU_FF_HP_R0_PRE_HM_MASK : VMCPU_FF_HP_R0_PRE_HM_STEP_MASK) )
2141	continue;
2142
2143	/** @todo Try handle pending flags, not just return to EM loops. Take care
2144	* not to set important RCs here unless we've handled a message. */
2145	LogFlow(("NEM/%u: breaking: pending FF (%#x / %#RX64)\n",
2146	pVCpu->idCpu, pVM->fGlobalForcedActions, (uint64_t)pVCpu->fLocalForcedActions));
2147	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnFFPost);
2148	}
2149	else
2150	{
2151	LogFlow(("NEM/%u: breaking: canceled %d (pre exec)\n", pVCpu->idCpu, VMCPU_GET_STATE(pVCpu) ));
2152	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnCancel);
2153	}
2154	}
2155	else
2156	{
2157	LogFlow(("NEM/%u: breaking: pending FF (pre exec)\n", pVCpu->idCpu));
2158	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatBreakOnFFPre);
2159	}
2160	break;
2161	} /* the run loop */
2162
2163
2164	/*
2165	* If the CPU is running, make sure to stop it before we try sync back the
2166	* state and return to EM. We don't sync back the whole state if we can help it.
2167	*/
2168	if (!VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED, VMCPUSTATE_STARTED_EXEC_NEM))
2169	VMCPU_CMPXCHG_STATE(pVCpu, VMCPUSTATE_STARTED, VMCPUSTATE_STARTED_EXEC_NEM_CANCELED);
2170
2171	if (pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_ALL)
2172	{
2173	/* Try anticipate what we might need. */
2174	uint64_t fImport = IEM_CPUMCTX_EXTRN_MUST_MASK;
2175	if ( (rcStrict >= VINF_EM_FIRST && rcStrict <= VINF_EM_LAST)
2176	\|\| RT_FAILURE(rcStrict))
2177	fImport = CPUMCTX_EXTRN_ALL;
2178	else if (VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_INTERRUPT_IRQ \| VMCPU_FF_INTERRUPT_FIQ))
2179	fImport \|= IEM_CPUMCTX_EXTRN_XCPT_MASK;
2180
2181	if (pVCpu->cpum.GstCtx.fExtrn & fImport)
2182	{
2183	int rc2 = nemHCWinCopyStateFromHyperV(pVM, pVCpu, fImport);
2184	if (RT_SUCCESS(rc2))
2185	pVCpu->cpum.GstCtx.fExtrn &= ~fImport;
2186	else if (RT_SUCCESS(rcStrict))
2187	rcStrict = rc2;
2188	if (!(pVCpu->cpum.GstCtx.fExtrn & CPUMCTX_EXTRN_ALL))
2189	pVCpu->cpum.GstCtx.fExtrn = 0;
2190	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatImportOnReturn);
2191	}
2192	else
2193	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatImportOnReturnSkipped);
2194	}
2195	else
2196	{
2197	STAM_REL_COUNTER_INC(&pVCpu->nem.s.StatImportOnReturnSkipped);
2198	pVCpu->cpum.GstCtx.fExtrn = 0;
2199	}
2200
2201	#if 0
2202	LogFlow(("NEM/%u: %04x:%08RX64 efl=%#08RX64 => %Rrc\n", pVCpu->idCpu, pVCpu->cpum.GstCtx.cs.Sel,
2203	pVCpu->cpum.GstCtx.rip, pVCpu->cpum.GstCtx.rflags.u, VBOXSTRICTRC_VAL(rcStrict) ));
2204	#endif
2205	return rcStrict;
2206	}
2207
2208
2209	VMMR3_INT_DECL(bool) NEMR3CanExecuteGuest(PVM pVM, PVMCPU pVCpu)
2210	{
2211	Assert(VM_IS_NEM_ENABLED(pVM));
2212	RT_NOREF(pVM, pVCpu);
2213	return true;
2214	}
2215
2216
2217	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable)
2218	{
2219	NOREF(pVM); NOREF(pVCpu); NOREF(fEnable);
2220	return false;
2221	}
2222
2223
2224	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags)
2225	{
2226	Log8(("nemR3NativeNotifyFF: canceling %u\n", pVCpu->idCpu));
2227	HRESULT hrc = WHvCancelRunVirtualProcessor(pVM->nem.s.hPartition, pVCpu->idCpu, 0);
2228	AssertMsg(SUCCEEDED(hrc), ("WHvCancelRunVirtualProcessor -> hrc=%Rhrc\n", hrc));
2229	RT_NOREF_PV(hrc);
2230	RT_NOREF_PV(fFlags);
2231	}
2232
2233
2234	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop)
2235	{
2236	RT_NOREF(pVM, fUseDebugLoop);
2237	return false;
2238	}
2239
2240
2241	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop)
2242	{
2243	RT_NOREF(pVM, pVCpu, fUseDebugLoop);
2244	return false;
2245	}
2246
2247
2248	DECLINLINE(int) nemR3NativeGCPhys2R3PtrReadOnly(PVM pVM, RTGCPHYS GCPhys, const void **ppv)
2249	{
2250	PGMPAGEMAPLOCK Lock;
2251	int rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, ppv, &Lock);
2252	if (RT_SUCCESS(rc))
2253	PGMPhysReleasePageMappingLock(pVM, &Lock);
2254	return rc;
2255	}
2256
2257
2258	DECLINLINE(int) nemR3NativeGCPhys2R3PtrWriteable(PVM pVM, RTGCPHYS GCPhys, void **ppv)
2259	{
2260	PGMPAGEMAPLOCK Lock;
2261	int rc = PGMPhysGCPhys2CCPtr(pVM, GCPhys, ppv, &Lock);
2262	if (RT_SUCCESS(rc))
2263	PGMPhysReleasePageMappingLock(pVM, &Lock);
2264	return rc;
2265	}
2266
2267
2268	VMMR3_INT_DECL(int) NEMR3NotifyPhysRamRegister(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvR3,
2269	uint8_t pu2State, uint32_t puNemRange)
2270	{
2271	Log5(("NEMR3NotifyPhysRamRegister: %RGp LB %RGp, pvR3=%p pu2State=%p (%d) puNemRange=%p (%d)\n",
2272	GCPhys, cb, pvR3, pu2State, pu2State, puNemRange, *puNemRange));
2273
2274	*pu2State = UINT8_MAX;
2275	RT_NOREF(puNemRange);
2276
2277	if (pvR3)
2278	{
2279	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2280	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvR3, GCPhys, cb,
2281	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagWrite \| WHvMapGpaRangeFlagExecute);
2282	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2283	if (SUCCEEDED(hrc))
2284	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
2285	else
2286	{
2287	LogRel(("NEMR3NotifyPhysRamRegister: GCPhys=%RGp LB %RGp pvR3=%p hrc=%Rhrc (%#x) Last=%#x/%u\n",
2288	GCPhys, cb, pvR3, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2289	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2290	return VERR_NEM_MAP_PAGES_FAILED;
2291	}
2292	}
2293	return VINF_SUCCESS;
2294	}
2295
2296
2297	VMMR3_INT_DECL(bool) NEMR3IsMmio2DirtyPageTrackingSupported(PVM pVM)
2298	{
2299	RT_NOREF(pVM);
2300	return g_pfnWHvQueryGpaRangeDirtyBitmap != NULL;
2301	}
2302
2303
2304	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMapEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags,
2305	void pvRam, void pvMmio2, uint8_t pu2State, uint32_t puNemRange)
2306	{
2307	Log5(("NEMR3NotifyPhysMmioExMapEarly: %RGp LB %RGp fFlags=%#x pvRam=%p pvMmio2=%p pu2State=%p (%d) puNemRange=%p (%#x)\n",
2308	GCPhys, cb, fFlags, pvRam, pvMmio2, pu2State, pu2State, puNemRange, puNemRange ? puNemRange : UINT32_MAX));
2309	RT_NOREF(puNemRange);
2310
2311	/*
2312	* Unmap the RAM we're replacing.
2313	*/
2314	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_REPLACE)
2315	{
2316	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRange, a);
2317	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhys, cb);
2318	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRange, a);
2319	if (SUCCEEDED(hrc))
2320	{ /* likely */ }
2321	else if (pvMmio2)
2322	LogRel(("NEMR3NotifyPhysMmioExMapEarly: GCPhys=%RGp LB %RGp fFlags=%#x: Unmap -> hrc=%Rhrc (%#x) Last=%#x/%u (ignored)\n",
2323	GCPhys, cb, fFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2324	else
2325	{
2326	LogRel(("NEMR3NotifyPhysMmioExMapEarly: GCPhys=%RGp LB %RGp fFlags=%#x: Unmap -> hrc=%Rhrc (%#x) Last=%#x/%u\n",
2327	GCPhys, cb, fFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2328	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
2329	return VERR_NEM_UNMAP_PAGES_FAILED;
2330	}
2331	}
2332
2333	/*
2334	* Map MMIO2 if any.
2335	*/
2336	if (pvMmio2)
2337	{
2338	Assert(fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2);
2339	WHV_MAP_GPA_RANGE_FLAGS fWHvFlags = WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagWrite \| WHvMapGpaRangeFlagExecute;
2340	if ((fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_TRACK_DIRTY_PAGES) && g_pfnWHvQueryGpaRangeDirtyBitmap)
2341	fWHvFlags \|= WHvMapGpaRangeFlagTrackDirtyPages;
2342	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2343	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvMmio2, GCPhys, cb, fWHvFlags);
2344	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2345	if (SUCCEEDED(hrc))
2346	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
2347	else
2348	{
2349	LogRel(("NEMR3NotifyPhysMmioExMapEarly: GCPhys=%RGp LB %RGp fFlags=%#x pvMmio2=%p fWHvFlags=%#x: Map -> hrc=%Rhrc (%#x) Last=%#x/%u\n",
2350	GCPhys, cb, fFlags, pvMmio2, fWHvFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2351	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2352	return VERR_NEM_MAP_PAGES_FAILED;
2353	}
2354	}
2355	else
2356	{
2357	Assert(!(fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2));
2358	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
2359	}
2360	RT_NOREF(pvRam);
2361	return VINF_SUCCESS;
2362	}
2363
2364
2365	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMapLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags,
2366	void pvRam, void pvMmio2, uint32_t *puNemRange)
2367	{
2368	RT_NOREF(pVM, GCPhys, cb, fFlags, pvRam, pvMmio2, puNemRange);
2369	return VINF_SUCCESS;
2370	}
2371
2372
2373	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExUnmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags, void *pvRam,
2374	void pvMmio2, uint8_t pu2State, uint32_t *puNemRange)
2375	{
2376	int rc = VINF_SUCCESS;
2377	Log5(("NEMR3NotifyPhysMmioExUnmap: %RGp LB %RGp fFlags=%#x pvRam=%p pvMmio2=%p pu2State=%p uNemRange=%#x (%#x)\n",
2378	GCPhys, cb, fFlags, pvRam, pvMmio2, pu2State, puNemRange, *puNemRange));
2379
2380	/*
2381	* Unmap the MMIO2 pages.
2382	*/
2383	/** @todo If we implement aliasing (MMIO2 page aliased into MMIO range),
2384	* we may have more stuff to unmap even in case of pure MMIO... */
2385	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2)
2386	{
2387	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRange, a);
2388	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhys, cb);
2389	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRange, a);
2390	if (FAILED(hrc))
2391	{
2392	LogRel2(("NEMR3NotifyPhysMmioExUnmap: GCPhys=%RGp LB %RGp fFlags=%#x: Unmap -> hrc=%Rhrc (%#x) Last=%#x/%u (ignored)\n",
2393	GCPhys, cb, fFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2394	rc = VERR_NEM_UNMAP_PAGES_FAILED;
2395	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
2396	}
2397	}
2398
2399	/*
2400	* Restore the RAM we replaced.
2401	*/
2402	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_REPLACE)
2403	{
2404	AssertPtr(pvRam);
2405	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2406	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvRam, GCPhys, cb,
2407	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagWrite \| WHvMapGpaRangeFlagExecute);
2408	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2409	if (SUCCEEDED(hrc))
2410	{ /* likely */ }
2411	else
2412	{
2413	LogRel(("NEMR3NotifyPhysMmioExUnmap: GCPhys=%RGp LB %RGp pvMmio2=%p hrc=%Rhrc (%#x) Last=%#x/%u\n",
2414	GCPhys, cb, pvMmio2, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2415	rc = VERR_NEM_MAP_PAGES_FAILED;
2416	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2417	}
2418	if (pu2State)
2419	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
2420	}
2421	/* Mark the pages as unmapped if relevant. */
2422	else if (pu2State)
2423	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
2424
2425	RT_NOREF(pvMmio2, puNemRange);
2426	return rc;
2427	}
2428
2429
2430	VMMR3_INT_DECL(int) NEMR3PhysMmio2QueryAndResetDirtyBitmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t uNemRange,
2431	void *pvBitmap, size_t cbBitmap)
2432	{
2433	Assert(VM_IS_NEM_ENABLED(pVM));
2434	AssertReturn(g_pfnWHvQueryGpaRangeDirtyBitmap, VERR_INTERNAL_ERROR_2);
2435	Assert(cbBitmap == (uint32_t)cbBitmap);
2436	RT_NOREF(uNemRange);
2437
2438	/* This is being profiled by PGM, see /PGM/Mmio2QueryAndResetDirtyBitmap. */
2439	HRESULT hrc = WHvQueryGpaRangeDirtyBitmap(pVM->nem.s.hPartition, GCPhys, cb, (UINT64 *)pvBitmap, (uint32_t)cbBitmap);
2440	if (SUCCEEDED(hrc))
2441	return VINF_SUCCESS;
2442
2443	AssertLogRelMsgFailed(("GCPhys=%RGp LB %RGp pvBitmap=%p LB %#zx hrc=%Rhrc (%#x) Last=%#x/%u\n",
2444	GCPhys, cb, pvBitmap, cbBitmap, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2445	return VERR_NEM_QUERY_DIRTY_BITMAP_FAILED;
2446	}
2447
2448
2449	VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvPages, uint32_t fFlags,
2450	uint8_t pu2State, uint32_t puNemRange)
2451	{
2452	Log5(("nemR3NativeNotifyPhysRomRegisterEarly: %RGp LB %RGp pvPages=%p fFlags=%#x\n", GCPhys, cb, pvPages, fFlags));
2453	*pu2State = UINT8_MAX;
2454	*puNemRange = 0;
2455
2456	#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. */
2457	RTGCPHYS const cPages = cb >> X86_PAGE_SHIFT;
2458	for (RTGCPHYS iPage = 0; iPage < cPages; iPage++, GCPhys += X86_PAGE_SIZE)
2459	{
2460	const void *pvPage;
2461	int rc = nemR3NativeGCPhys2R3PtrReadOnly(pVM, GCPhys, &pvPage);
2462	if (RT_SUCCESS(rc))
2463	{
2464	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, (void *)pvPage, GCPhys, X86_PAGE_SIZE,
2465	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute);
2466	if (SUCCEEDED(hrc))
2467	{ /* likely */ }
2468	else
2469	{
2470	LogRel(("nemR3NativeNotifyPhysRomRegisterEarly: GCPhys=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
2471	GCPhys, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2472	return VERR_NEM_INIT_FAILED;
2473	}
2474	}
2475	else
2476	{
2477	LogRel(("nemR3NativeNotifyPhysRomRegisterEarly: GCPhys=%RGp rc=%Rrc\n", GCPhys, rc));
2478	return rc;
2479	}
2480	}
2481	RT_NOREF_PV(fFlags);
2482	#else
2483	RT_NOREF(pVM, GCPhys, cb, pvPages, fFlags);
2484	#endif
2485	return VINF_SUCCESS;
2486	}
2487
2488
2489	VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvPages,
2490	uint32_t fFlags, uint8_t pu2State, uint32_t puNemRange)
2491	{
2492	Log5(("nemR3NativeNotifyPhysRomRegisterLate: %RGp LB %RGp pvPages=%p fFlags=%#x pu2State=%p (%d) puNemRange=%p (%#x)\n",
2493	GCPhys, cb, pvPages, fFlags, pu2State, pu2State, puNemRange, puNemRange));
2494	*pu2State = UINT8_MAX;
2495
2496	/*
2497	* (Re-)map readonly.
2498	*/
2499	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
2500	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2501	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvPages, GCPhys, cb, WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute);
2502	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2503	if (SUCCEEDED(hrc))
2504	*pu2State = NEM_WIN_PAGE_STATE_READABLE;
2505	else
2506	{
2507	LogRel(("nemR3NativeNotifyPhysRomRegisterEarly: GCPhys=%RGp LB %RGp pvPages=%p fFlags=%#x hrc=%Rhrc (%#x) Last=%#x/%u\n",
2508	GCPhys, cb, pvPages, fFlags, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2509	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2510	return VERR_NEM_MAP_PAGES_FAILED;
2511	}
2512	RT_NOREF(fFlags, puNemRange);
2513	return VINF_SUCCESS;
2514	}
2515
2516	VMMR3_INT_DECL(void) NEMR3NotifySetA20(PVMCPU pVCpu, bool fEnabled)
2517	{
2518	Log(("nemR3NativeNotifySetA20: fEnabled=%RTbool\n", fEnabled));
2519	Assert(VM_IS_NEM_ENABLED(pVCpu->CTX_SUFF(pVM)));
2520	RT_NOREF(pVCpu, fEnabled);
2521	}
2522
2523
2524	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb)
2525	{
2526	Log5(("nemHCNativeNotifyHandlerPhysicalRegister: %RGp LB %RGp enmKind=%d\n", GCPhys, cb, enmKind));
2527	NOREF(pVM); NOREF(enmKind); NOREF(GCPhys); NOREF(cb);
2528	}
2529
2530
2531	VMM_INT_DECL(void) NEMHCNotifyHandlerPhysicalDeregister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb,
2532	RTR3PTR pvMemR3, uint8_t *pu2State)
2533	{
2534	Log5(("NEMHCNotifyHandlerPhysicalDeregister: %RGp LB %RGp enmKind=%d pvMemR3=%p pu2State=%p (%d)\n",
2535	GCPhys, cb, enmKind, pvMemR3, pu2State, *pu2State));
2536
2537	*pu2State = UINT8_MAX;
2538	if (pvMemR3)
2539	{
2540	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRange, a);
2541	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvMemR3, GCPhys, cb,
2542	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute \| WHvMapGpaRangeFlagWrite);
2543	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRange, a);
2544	if (SUCCEEDED(hrc))
2545	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
2546	else
2547	AssertLogRelMsgFailed(("NEMHCNotifyHandlerPhysicalDeregister: WHvMapGpaRange(,%p,%RGp,%RGp,) -> %Rhrc\n",
2548	pvMemR3, GCPhys, cb, hrc));
2549	}
2550	RT_NOREF(enmKind);
2551	}
2552
2553
2554	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
2555	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM)
2556	{
2557	Log5(("nemHCNativeNotifyHandlerPhysicalModify: %RGp LB %RGp -> %RGp enmKind=%d fRestoreAsRAM=%d\n",
2558	GCPhysOld, cb, GCPhysNew, enmKind, fRestoreAsRAM));
2559	NOREF(pVM); NOREF(enmKind); NOREF(GCPhysOld); NOREF(GCPhysNew); NOREF(cb); NOREF(fRestoreAsRAM);
2560	}
2561
2562
2563	/**
2564	* Worker that maps pages into Hyper-V.
2565	*
2566	* This is used by the PGM physical page notifications as well as the memory
2567	* access VMEXIT handlers.
2568	*
2569	* @returns VBox status code.
2570	* @param pVM The cross context VM structure.
2571	* @param pVCpu The cross context virtual CPU structure of the
2572	* calling EMT.
2573	* @param GCPhysSrc The source page address.
2574	* @param GCPhysDst The hyper-V destination page. This may differ from
2575	* GCPhysSrc when A20 is disabled.
2576	* @param fPageProt NEM_PAGE_PROT_XXX.
2577	* @param pu2State Our page state (input/output).
2578	* @param fBackingChanged Set if the page backing is being changed.
2579	* @thread EMT(pVCpu)
2580	*/
2581	NEM_TMPL_STATIC int nemHCNativeSetPhysPage(PVMCC pVM, PVMCPUCC pVCpu, RTGCPHYS GCPhysSrc, RTGCPHYS GCPhysDst,
2582	uint32_t fPageProt, uint8_t *pu2State, bool fBackingChanged)
2583	{
2584	/*
2585	* Looks like we need to unmap a page before we can change the backing
2586	* or even modify the protection. This is going to be REALLY efficient.
2587	* PGM lends us two bits to keep track of the state here.
2588	*/
2589	RT_NOREF(pVCpu);
2590	uint8_t const u2OldState = *pu2State;
2591	uint8_t const u2NewState = fPageProt & NEM_PAGE_PROT_WRITE ? NEM_WIN_PAGE_STATE_WRITABLE
2592	: fPageProt & NEM_PAGE_PROT_READ ? NEM_WIN_PAGE_STATE_READABLE : NEM_WIN_PAGE_STATE_UNMAPPED;
2593	if ( fBackingChanged
2594	\|\| u2NewState != u2OldState)
2595	{
2596	if (u2OldState > NEM_WIN_PAGE_STATE_UNMAPPED)
2597	{
2598	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
2599	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhysDst, X86_PAGE_SIZE);
2600	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
2601	if (SUCCEEDED(hrc))
2602	{
2603	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
2604	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPage);
2605	uint32_t cMappedPages = ASMAtomicDecU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
2606	if (u2NewState == NEM_WIN_PAGE_STATE_UNMAPPED)
2607	{
2608	Log5(("NEM GPA unmapped/set: %RGp (was %s, cMappedPages=%u)\n",
2609	GCPhysDst, g_apszPageStates[u2OldState], cMappedPages));
2610	return VINF_SUCCESS;
2611	}
2612	}
2613	else
2614	{
2615	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
2616	LogRel(("nemHCNativeSetPhysPage/unmap: GCPhysDst=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
2617	GCPhysDst, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2618	return VERR_NEM_INIT_FAILED;
2619	}
2620	}
2621	}
2622
2623	/*
2624	* Writeable mapping?
2625	*/
2626	if (fPageProt & NEM_PAGE_PROT_WRITE)
2627	{
2628	void *pvPage;
2629	int rc = nemR3NativeGCPhys2R3PtrWriteable(pVM, GCPhysSrc, &pvPage);
2630	if (RT_SUCCESS(rc))
2631	{
2632	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, pvPage, GCPhysDst, X86_PAGE_SIZE,
2633	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute \| WHvMapGpaRangeFlagWrite);
2634	if (SUCCEEDED(hrc))
2635	{
2636	*pu2State = NEM_WIN_PAGE_STATE_WRITABLE;
2637	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPage);
2638	uint32_t cMappedPages = ASMAtomicIncU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
2639	Log5(("NEM GPA mapped/set: %RGp %s (was %s, cMappedPages=%u)\n",
2640	GCPhysDst, g_apszPageStates[u2NewState], g_apszPageStates[u2OldState], cMappedPages));
2641	return VINF_SUCCESS;
2642	}
2643	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2644	LogRel(("nemHCNativeSetPhysPage/writable: GCPhysDst=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
2645	GCPhysDst, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2646	return VERR_NEM_INIT_FAILED;
2647	}
2648	LogRel(("nemHCNativeSetPhysPage/writable: GCPhysSrc=%RGp rc=%Rrc\n", GCPhysSrc, rc));
2649	return rc;
2650	}
2651
2652	if (fPageProt & NEM_PAGE_PROT_READ)
2653	{
2654	const void *pvPage;
2655	int rc = nemR3NativeGCPhys2R3PtrReadOnly(pVM, GCPhysSrc, &pvPage);
2656	if (RT_SUCCESS(rc))
2657	{
2658	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfMapGpaRangePage, a);
2659	HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, (void *)pvPage, GCPhysDst, X86_PAGE_SIZE,
2660	WHvMapGpaRangeFlagRead \| WHvMapGpaRangeFlagExecute);
2661	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfMapGpaRangePage, a);
2662	if (SUCCEEDED(hrc))
2663	{
2664	*pu2State = NEM_WIN_PAGE_STATE_READABLE;
2665	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPage);
2666	uint32_t cMappedPages = ASMAtomicIncU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
2667	Log5(("NEM GPA mapped/set: %RGp %s (was %s, cMappedPages=%u)\n",
2668	GCPhysDst, g_apszPageStates[u2NewState], g_apszPageStates[u2OldState], cMappedPages));
2669	return VINF_SUCCESS;
2670	}
2671	STAM_REL_COUNTER_INC(&pVM->nem.s.StatMapPageFailed);
2672	LogRel(("nemHCNativeSetPhysPage/readonly: GCPhysDst=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
2673	GCPhysDst, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2674	return VERR_NEM_INIT_FAILED;
2675	}
2676	LogRel(("nemHCNativeSetPhysPage/readonly: GCPhysSrc=%RGp rc=%Rrc\n", GCPhysSrc, rc));
2677	return rc;
2678	}
2679
2680	/* We already unmapped it above. */
2681	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
2682	return VINF_SUCCESS;
2683	}
2684
2685
2686	NEM_TMPL_STATIC int nemHCJustUnmapPageFromHyperV(PVMCC pVM, RTGCPHYS GCPhysDst, uint8_t *pu2State)
2687	{
2688	if (*pu2State <= NEM_WIN_PAGE_STATE_UNMAPPED)
2689	{
2690	Log5(("nemHCJustUnmapPageFromHyperV: %RGp == unmapped\n", GCPhysDst));
2691	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
2692	return VINF_SUCCESS;
2693	}
2694
2695	STAM_REL_PROFILE_START(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
2696	HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhysDst & ~(RTGCPHYS)X86_PAGE_OFFSET_MASK, X86_PAGE_SIZE);
2697	STAM_REL_PROFILE_STOP(&pVM->nem.s.StatProfUnmapGpaRangePage, a);
2698	if (SUCCEEDED(hrc))
2699	{
2700	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPage);
2701	uint32_t cMappedPages = ASMAtomicDecU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
2702	*pu2State = NEM_WIN_PAGE_STATE_UNMAPPED;
2703	Log5(("nemHCJustUnmapPageFromHyperV: %RGp => unmapped (total %u)\n", GCPhysDst, cMappedPages));
2704	return VINF_SUCCESS;
2705	}
2706	STAM_REL_COUNTER_INC(&pVM->nem.s.StatUnmapPageFailed);
2707	LogRel(("nemHCJustUnmapPageFromHyperV(%RGp): failed! hrc=%Rhrc (%#x) Last=%#x/%u\n",
2708	GCPhysDst, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
2709	return VERR_NEM_IPE_6;
2710	}
2711
2712
2713	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
2714	PGMPAGETYPE enmType, uint8_t *pu2State)
2715	{
2716	Log5(("nemHCNativeNotifyPhysPageAllocated: %RGp HCPhys=%RHp fPageProt=%#x enmType=%d *pu2State=%d\n",
2717	GCPhys, HCPhys, fPageProt, enmType, *pu2State));
2718	RT_NOREF_PV(HCPhys); RT_NOREF_PV(enmType);
2719
2720	int rc;
2721	RT_NOREF_PV(fPageProt);
2722	rc = nemHCJustUnmapPageFromHyperV(pVM, GCPhys, pu2State);
2723	return rc;
2724	}
2725
2726
2727	VMM_INT_DECL(void) NEMHCNotifyPhysPageProtChanged(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, RTR3PTR pvR3, uint32_t fPageProt,
2728	PGMPAGETYPE enmType, uint8_t *pu2State)
2729	{
2730	Log5(("NEMHCNotifyPhysPageProtChanged: %RGp HCPhys=%RHp fPageProt=%#x enmType=%d *pu2State=%d\n",
2731	GCPhys, HCPhys, fPageProt, enmType, *pu2State));
2732	Assert(VM_IS_NEM_ENABLED(pVM));
2733	RT_NOREF(HCPhys, enmType, pvR3);
2734
2735	RT_NOREF_PV(fPageProt);
2736	nemHCJustUnmapPageFromHyperV(pVM, GCPhys, pu2State);
2737	}
2738
2739
2740	VMM_INT_DECL(void) NEMHCNotifyPhysPageChanged(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhysPrev, RTHCPHYS HCPhysNew,
2741	RTR3PTR pvNewR3, uint32_t fPageProt, PGMPAGETYPE enmType, uint8_t *pu2State)
2742	{
2743	Log5(("nemHCNativeNotifyPhysPageChanged: %RGp HCPhys=%RHp->%RHp pvNewR3=%p fPageProt=%#x enmType=%d *pu2State=%d\n",
2744	GCPhys, HCPhysPrev, HCPhysNew, pvNewR3, fPageProt, enmType, *pu2State));
2745	Assert(VM_IS_NEM_ENABLED(pVM));
2746	RT_NOREF(HCPhysPrev, HCPhysNew, pvNewR3, enmType);
2747
2748	RT_NOREF_PV(fPageProt);
2749	nemHCJustUnmapPageFromHyperV(pVM, GCPhys, pu2State);
2750	}
2751
2752
2753	/**
2754	* Returns features supported by the NEM backend.
2755	*
2756	* @returns Flags of features supported by the native NEM backend.
2757	* @param pVM The cross context VM structure.
2758	*/
2759	VMM_INT_DECL(uint32_t) NEMHCGetFeatures(PVMCC pVM)
2760	{
2761	RT_NOREF(pVM);
2762	/** @todo Is NEM_FEAT_F_FULL_GST_EXEC always true? */
2763	return NEM_FEAT_F_NESTED_PAGING \| NEM_FEAT_F_FULL_GST_EXEC;
2764	}
2765
2766
2767	/** @page pg_nem_win_aarmv8 NEM/win - Native Execution Manager, Windows.
2768	*
2769	* Open questions:
2770	* - Why can't one read and write WHvArm64RegisterId*
2771	* - WHvArm64RegisterDbgbcr0El1 is not readable?
2772	* - Getting notified about system register reads/writes (GIC)?
2773	* - InstructionByteCount and InstructionBytes for unmapped GPA exit are zero...
2774	* - Handling of (vTimer) interrupts, how is WHvRequestInterrupt() supposed to be used?
2775	*/
2776

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source: vbox/trunk/src/VBox/VMM/VMMR3/NEMR3Native-win-armv8.cpp@ 105745

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