NEMR3NativeTemplate-linux.cpp.h@ 105702

Last change on this file since 105702 was 104840, checked in by vboxsync, 6 months ago
VMM/PGM: Refactored RAM ranges, MMIO2 ranges and ROM ranges and added MMIO ranges (to PGM) so we can safely access RAM ranges at runtime w/o fear of them ever being freed up. It is now only possible to create these during VM creation and loading, and they will live till VM destruction (except for MMIO2 which could be destroyed during loading (PCNet fun)). The lookup handling is by table instead of pointer tree. No more ring-0 pointers in shared data. bugref:10687 bugref:10093
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 42.2 KB

Line
1	/* $Id: NEMR3NativeTemplate-linux.cpp.h 104840 2024-06-05 00:59:51Z vboxsync $ */
2	/** @file
3	* NEM - Native execution manager, native ring-3 Linux backend, common bits for x86 and arm64.
4	*/
5
6	/*
7	* Copyright (C) 2021-2024 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	/*
29	* Supply stuff missing from the kvm.h on the build box.
30	*/
31	#ifndef KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON /* since 5.4 */
32	# define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4
33	#endif
34
35
36
37	/**
38	* Worker for nemR3NativeInit that gets the hypervisor capabilities.
39	*
40	* @returns VBox status code.
41	* @param pVM The cross context VM structure.
42	* @param pErrInfo Where to always return error info.
43	*/
44	static int nemR3LnxInitCheckCapabilities(PVM pVM, PRTERRINFO pErrInfo)
45	{
46	AssertReturn(pVM->nem.s.fdKvm != -1, RTErrInfoSet(pErrInfo, VERR_WRONG_ORDER, "Wrong initalization order"));
47
48	/*
49	* Capabilities.
50	*/
51	static const struct
52	{
53	const char *pszName;
54	int iCap;
55	uint32_t offNem : 24;
56	uint32_t cbNem : 3;
57	uint32_t fReqNonZero : 1;
58	uint32_t uReserved : 4;
59	} s_aCaps[] =
60	{
61	#define CAP_ENTRY__L(a_Define) { #a_Define, a_Define, UINT32_C(0x00ffffff), 0, 0, 0 }
62	#define CAP_ENTRY__S(a_Define, a_Member) { #a_Define, a_Define, RT_UOFFSETOF(NEM, a_Member), RT_SIZEOFMEMB(NEM, a_Member), 0, 0 }
63	#define CAP_ENTRY_MS(a_Define, a_Member) { #a_Define, a_Define, RT_UOFFSETOF(NEM, a_Member), RT_SIZEOFMEMB(NEM, a_Member), 1, 0 }
64	#define CAP_ENTRY__U(a_Number) { "KVM_CAP_" #a_Number, a_Number, UINT32_C(0x00ffffff), 0, 0, 0 }
65	#define CAP_ENTRY_ML(a_Number) { "KVM_CAP_" #a_Number, a_Number, UINT32_C(0x00ffffff), 0, 1, 0 }
66
67	CAP_ENTRY__L(KVM_CAP_IRQCHIP), /* 0 */
68	#ifdef VBOX_VMM_TARGET_ARMV8
69	CAP_ENTRY__L(KVM_CAP_HLT),
70	#else
71	CAP_ENTRY_ML(KVM_CAP_HLT),
72	#endif
73	CAP_ENTRY__L(KVM_CAP_MMU_SHADOW_CACHE_CONTROL),
74	CAP_ENTRY_ML(KVM_CAP_USER_MEMORY),
75	CAP_ENTRY__L(KVM_CAP_SET_TSS_ADDR),
76	CAP_ENTRY__U(5),
77	CAP_ENTRY__L(KVM_CAP_VAPIC),
78	CAP_ENTRY__L(KVM_CAP_EXT_CPUID),
79	CAP_ENTRY__L(KVM_CAP_CLOCKSOURCE),
80	CAP_ENTRY__L(KVM_CAP_NR_VCPUS),
81	CAP_ENTRY_MS(KVM_CAP_NR_MEMSLOTS, cMaxMemSlots), /* 10 */
82	CAP_ENTRY__L(KVM_CAP_PIT),
83	CAP_ENTRY__L(KVM_CAP_NOP_IO_DELAY),
84	CAP_ENTRY__L(KVM_CAP_PV_MMU),
85	CAP_ENTRY__L(KVM_CAP_MP_STATE),
86	CAP_ENTRY__L(KVM_CAP_COALESCED_MMIO),
87	CAP_ENTRY__L(KVM_CAP_SYNC_MMU),
88	CAP_ENTRY__U(17),
89	CAP_ENTRY__L(KVM_CAP_IOMMU),
90	CAP_ENTRY__U(19), /* Buggy KVM_CAP_JOIN_MEMORY_REGIONS? */
91	CAP_ENTRY__U(20), /* Mon-working KVM_CAP_DESTROY_MEMORY_REGION? */
92	CAP_ENTRY__L(KVM_CAP_DESTROY_MEMORY_REGION_WORKS), /* 21 */
93	CAP_ENTRY__L(KVM_CAP_USER_NMI),
94	#ifdef __KVM_HAVE_GUEST_DEBUG
95	CAP_ENTRY__L(KVM_CAP_SET_GUEST_DEBUG),
96	#endif
97	#ifdef __KVM_HAVE_PIT
98	CAP_ENTRY__L(KVM_CAP_REINJECT_CONTROL),
99	#endif
100	CAP_ENTRY__L(KVM_CAP_IRQ_ROUTING),
101	CAP_ENTRY__L(KVM_CAP_IRQ_INJECT_STATUS),
102	CAP_ENTRY__U(27),
103	CAP_ENTRY__U(28),
104	CAP_ENTRY__L(KVM_CAP_ASSIGN_DEV_IRQ),
105	CAP_ENTRY__L(KVM_CAP_JOIN_MEMORY_REGIONS_WORKS), /* 30 */
106	#ifdef __KVM_HAVE_MCE
107	CAP_ENTRY__L(KVM_CAP_MCE),
108	#endif
109	CAP_ENTRY__L(KVM_CAP_IRQFD),
110	#ifdef __KVM_HAVE_PIT
111	CAP_ENTRY__L(KVM_CAP_PIT2),
112	#endif
113	CAP_ENTRY__L(KVM_CAP_SET_BOOT_CPU_ID),
114	#ifdef __KVM_HAVE_PIT_STATE2
115	CAP_ENTRY__L(KVM_CAP_PIT_STATE2),
116	#endif
117	CAP_ENTRY__L(KVM_CAP_IOEVENTFD),
118	CAP_ENTRY__L(KVM_CAP_SET_IDENTITY_MAP_ADDR),
119	#ifdef __KVM_HAVE_XEN_HVM
120	CAP_ENTRY__L(KVM_CAP_XEN_HVM),
121	#endif
122	#ifdef VBOX_VMM_TARGET_ARMV8
123	CAP_ENTRY__L(KVM_CAP_ADJUST_CLOCK),
124	#else
125	CAP_ENTRY_ML(KVM_CAP_ADJUST_CLOCK),
126	#endif
127	CAP_ENTRY__L(KVM_CAP_INTERNAL_ERROR_DATA), /* 40 */
128	#ifdef __KVM_HAVE_VCPU_EVENTS
129	CAP_ENTRY_ML(KVM_CAP_VCPU_EVENTS),
130	#else
131	CAP_ENTRY__U(41),
132	#endif
133	CAP_ENTRY__L(KVM_CAP_S390_PSW),
134	CAP_ENTRY__L(KVM_CAP_PPC_SEGSTATE),
135	CAP_ENTRY__L(KVM_CAP_HYPERV),
136	CAP_ENTRY__L(KVM_CAP_HYPERV_VAPIC),
137	CAP_ENTRY__L(KVM_CAP_HYPERV_SPIN),
138	CAP_ENTRY__L(KVM_CAP_PCI_SEGMENT),
139	CAP_ENTRY__L(KVM_CAP_PPC_PAIRED_SINGLES),
140	CAP_ENTRY__L(KVM_CAP_INTR_SHADOW),
141	#ifdef __KVM_HAVE_DEBUGREGS
142	CAP_ENTRY__L(KVM_CAP_DEBUGREGS), /* 50 */
143	#endif
144	#ifdef VBOX_VMM_TARGET_ARMV8
145	CAP_ENTRY__L(KVM_CAP_X86_ROBUST_SINGLESTEP),
146	#else
147	CAP_ENTRY__S(KVM_CAP_X86_ROBUST_SINGLESTEP, fRobustSingleStep),
148	#endif
149	CAP_ENTRY__L(KVM_CAP_PPC_OSI),
150	CAP_ENTRY__L(KVM_CAP_PPC_UNSET_IRQ),
151	CAP_ENTRY__L(KVM_CAP_ENABLE_CAP),
152	#ifdef __KVM_HAVE_XSAVE
153	CAP_ENTRY_ML(KVM_CAP_XSAVE),
154	#else
155	CAP_ENTRY__U(55),
156	#endif
157	#ifdef __KVM_HAVE_XCRS
158	CAP_ENTRY_ML(KVM_CAP_XCRS),
159	#else
160	CAP_ENTRY__U(56),
161	#endif
162	CAP_ENTRY__L(KVM_CAP_PPC_GET_PVINFO),
163	CAP_ENTRY__L(KVM_CAP_PPC_IRQ_LEVEL),
164	CAP_ENTRY__L(KVM_CAP_ASYNC_PF),
165	CAP_ENTRY__L(KVM_CAP_TSC_CONTROL), /* 60 */
166	CAP_ENTRY__L(KVM_CAP_GET_TSC_KHZ),
167	CAP_ENTRY__L(KVM_CAP_PPC_BOOKE_SREGS),
168	CAP_ENTRY__L(KVM_CAP_SPAPR_TCE),
169	CAP_ENTRY__L(KVM_CAP_PPC_SMT),
170	CAP_ENTRY__L(KVM_CAP_PPC_RMA),
171	CAP_ENTRY__L(KVM_CAP_MAX_VCPUS),
172	CAP_ENTRY__L(KVM_CAP_PPC_HIOR),
173	CAP_ENTRY__L(KVM_CAP_PPC_PAPR),
174	CAP_ENTRY__L(KVM_CAP_SW_TLB),
175	CAP_ENTRY__L(KVM_CAP_ONE_REG), /* 70 */
176	CAP_ENTRY__L(KVM_CAP_S390_GMAP),
177	CAP_ENTRY__L(KVM_CAP_TSC_DEADLINE_TIMER),
178	CAP_ENTRY__L(KVM_CAP_S390_UCONTROL),
179	CAP_ENTRY__L(KVM_CAP_SYNC_REGS),
180	CAP_ENTRY__L(KVM_CAP_PCI_2_3),
181	CAP_ENTRY__L(KVM_CAP_KVMCLOCK_CTRL),
182	CAP_ENTRY__L(KVM_CAP_SIGNAL_MSI),
183	CAP_ENTRY__L(KVM_CAP_PPC_GET_SMMU_INFO),
184	CAP_ENTRY__L(KVM_CAP_S390_COW),
185	CAP_ENTRY__L(KVM_CAP_PPC_ALLOC_HTAB), /* 80 */
186	CAP_ENTRY__L(KVM_CAP_READONLY_MEM),
187	CAP_ENTRY__L(KVM_CAP_IRQFD_RESAMPLE),
188	CAP_ENTRY__L(KVM_CAP_PPC_BOOKE_WATCHDOG),
189	CAP_ENTRY__L(KVM_CAP_PPC_HTAB_FD),
190	CAP_ENTRY__L(KVM_CAP_S390_CSS_SUPPORT),
191	CAP_ENTRY__L(KVM_CAP_PPC_EPR),
192	#ifdef VBOX_VMM_TARGET_ARMV8
193	CAP_ENTRY_ML(KVM_CAP_ARM_PSCI),
194	CAP_ENTRY_ML(KVM_CAP_ARM_SET_DEVICE_ADDR),
195	CAP_ENTRY_ML(KVM_CAP_DEVICE_CTRL),
196	#else
197	CAP_ENTRY__L(KVM_CAP_ARM_PSCI),
198	CAP_ENTRY__L(KVM_CAP_ARM_SET_DEVICE_ADDR),
199	CAP_ENTRY__L(KVM_CAP_DEVICE_CTRL),
200	#endif
201	CAP_ENTRY__L(KVM_CAP_IRQ_MPIC), /* 90 */
202	CAP_ENTRY__L(KVM_CAP_PPC_RTAS),
203	CAP_ENTRY__L(KVM_CAP_IRQ_XICS),
204	CAP_ENTRY__L(KVM_CAP_ARM_EL1_32BIT),
205	CAP_ENTRY__L(KVM_CAP_SPAPR_MULTITCE),
206	CAP_ENTRY__L(KVM_CAP_EXT_EMUL_CPUID),
207	CAP_ENTRY__L(KVM_CAP_HYPERV_TIME),
208	CAP_ENTRY__L(KVM_CAP_IOAPIC_POLARITY_IGNORED),
209	CAP_ENTRY__L(KVM_CAP_ENABLE_CAP_VM),
210	CAP_ENTRY__L(KVM_CAP_S390_IRQCHIP),
211	CAP_ENTRY__L(KVM_CAP_IOEVENTFD_NO_LENGTH), /* 100 */
212	CAP_ENTRY__L(KVM_CAP_VM_ATTRIBUTES),
213	#ifdef VBOX_VMM_TARGET_ARMV8
214	CAP_ENTRY_ML(KVM_CAP_ARM_PSCI_0_2),
215	#else
216	CAP_ENTRY__L(KVM_CAP_ARM_PSCI_0_2),
217	#endif
218	CAP_ENTRY__L(KVM_CAP_PPC_FIXUP_HCALL),
219	CAP_ENTRY__L(KVM_CAP_PPC_ENABLE_HCALL),
220	CAP_ENTRY__L(KVM_CAP_CHECK_EXTENSION_VM),
221	CAP_ENTRY__L(KVM_CAP_S390_USER_SIGP),
222	CAP_ENTRY__L(KVM_CAP_S390_VECTOR_REGISTERS),
223	CAP_ENTRY__L(KVM_CAP_S390_MEM_OP),
224	CAP_ENTRY__L(KVM_CAP_S390_USER_STSI),
225	CAP_ENTRY__L(KVM_CAP_S390_SKEYS), /* 110 */
226	CAP_ENTRY__L(KVM_CAP_MIPS_FPU),
227	CAP_ENTRY__L(KVM_CAP_MIPS_MSA),
228	CAP_ENTRY__L(KVM_CAP_S390_INJECT_IRQ),
229	CAP_ENTRY__L(KVM_CAP_S390_IRQ_STATE),
230	CAP_ENTRY__L(KVM_CAP_PPC_HWRNG),
231	CAP_ENTRY__L(KVM_CAP_DISABLE_QUIRKS),
232	CAP_ENTRY__L(KVM_CAP_X86_SMM),
233	CAP_ENTRY__L(KVM_CAP_MULTI_ADDRESS_SPACE),
234	CAP_ENTRY__L(KVM_CAP_GUEST_DEBUG_HW_BPS),
235	CAP_ENTRY__L(KVM_CAP_GUEST_DEBUG_HW_WPS), /* 120 */
236	CAP_ENTRY__L(KVM_CAP_SPLIT_IRQCHIP),
237	CAP_ENTRY__L(KVM_CAP_IOEVENTFD_ANY_LENGTH),
238	CAP_ENTRY__L(KVM_CAP_HYPERV_SYNIC),
239	CAP_ENTRY__L(KVM_CAP_S390_RI),
240	CAP_ENTRY__L(KVM_CAP_SPAPR_TCE_64),
241	CAP_ENTRY__L(KVM_CAP_ARM_PMU_V3),
242	CAP_ENTRY__L(KVM_CAP_VCPU_ATTRIBUTES),
243	CAP_ENTRY__L(KVM_CAP_MAX_VCPU_ID),
244	CAP_ENTRY__L(KVM_CAP_X2APIC_API),
245	CAP_ENTRY__L(KVM_CAP_S390_USER_INSTR0), /* 130 */
246	CAP_ENTRY__L(KVM_CAP_MSI_DEVID),
247	CAP_ENTRY__L(KVM_CAP_PPC_HTM),
248	CAP_ENTRY__L(KVM_CAP_SPAPR_RESIZE_HPT),
249	CAP_ENTRY__L(KVM_CAP_PPC_MMU_RADIX),
250	CAP_ENTRY__L(KVM_CAP_PPC_MMU_HASH_V3),
251	CAP_ENTRY__L(KVM_CAP_IMMEDIATE_EXIT),
252	CAP_ENTRY__L(KVM_CAP_MIPS_VZ),
253	CAP_ENTRY__L(KVM_CAP_MIPS_TE),
254	CAP_ENTRY__L(KVM_CAP_MIPS_64BIT),
255	CAP_ENTRY__L(KVM_CAP_S390_GS), /* 140 */
256	CAP_ENTRY__L(KVM_CAP_S390_AIS),
257	CAP_ENTRY__L(KVM_CAP_SPAPR_TCE_VFIO),
258	CAP_ENTRY__L(KVM_CAP_X86_DISABLE_EXITS),
259	CAP_ENTRY__L(KVM_CAP_ARM_USER_IRQ),
260	CAP_ENTRY__L(KVM_CAP_S390_CMMA_MIGRATION),
261	CAP_ENTRY__L(KVM_CAP_PPC_FWNMI),
262	CAP_ENTRY__L(KVM_CAP_PPC_SMT_POSSIBLE),
263	CAP_ENTRY__L(KVM_CAP_HYPERV_SYNIC2),
264	CAP_ENTRY__L(KVM_CAP_HYPERV_VP_INDEX),
265	CAP_ENTRY__L(KVM_CAP_S390_AIS_MIGRATION), /* 150 */
266	CAP_ENTRY__L(KVM_CAP_PPC_GET_CPU_CHAR),
267	CAP_ENTRY__L(KVM_CAP_S390_BPB),
268	CAP_ENTRY__L(KVM_CAP_GET_MSR_FEATURES),
269	CAP_ENTRY__L(KVM_CAP_HYPERV_EVENTFD),
270	CAP_ENTRY__L(KVM_CAP_HYPERV_TLBFLUSH),
271	CAP_ENTRY__L(KVM_CAP_S390_HPAGE_1M),
272	CAP_ENTRY__L(KVM_CAP_NESTED_STATE),
273	CAP_ENTRY__L(KVM_CAP_ARM_INJECT_SERROR_ESR),
274	CAP_ENTRY__L(KVM_CAP_MSR_PLATFORM_INFO),
275	CAP_ENTRY__L(KVM_CAP_PPC_NESTED_HV), /* 160 */
276	CAP_ENTRY__L(KVM_CAP_HYPERV_SEND_IPI),
277	CAP_ENTRY__L(KVM_CAP_COALESCED_PIO),
278	CAP_ENTRY__L(KVM_CAP_HYPERV_ENLIGHTENED_VMCS),
279	CAP_ENTRY__L(KVM_CAP_EXCEPTION_PAYLOAD),
280	#ifdef VBOX_VMM_TARGET_ARMV8
281	CAP_ENTRY_MS(KVM_CAP_ARM_VM_IPA_SIZE, cIpaBits),
282	#else
283	CAP_ENTRY__L(KVM_CAP_ARM_VM_IPA_SIZE),
284	#endif
285	CAP_ENTRY__L(KVM_CAP_MANUAL_DIRTY_LOG_PROTECT),
286	CAP_ENTRY__L(KVM_CAP_HYPERV_CPUID),
287	CAP_ENTRY__L(KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2),
288	CAP_ENTRY__L(KVM_CAP_PPC_IRQ_XIVE),
289	CAP_ENTRY__L(KVM_CAP_ARM_SVE), /* 170 */
290	CAP_ENTRY__L(KVM_CAP_ARM_PTRAUTH_ADDRESS),
291	CAP_ENTRY__L(KVM_CAP_ARM_PTRAUTH_GENERIC),
292	CAP_ENTRY__L(KVM_CAP_PMU_EVENT_FILTER),
293	CAP_ENTRY__L(KVM_CAP_ARM_IRQ_LINE_LAYOUT_2),
294	CAP_ENTRY__L(KVM_CAP_HYPERV_DIRECT_TLBFLUSH),
295	CAP_ENTRY__L(KVM_CAP_PPC_GUEST_DEBUG_SSTEP),
296	CAP_ENTRY__L(KVM_CAP_ARM_NISV_TO_USER),
297	CAP_ENTRY__L(KVM_CAP_ARM_INJECT_EXT_DABT),
298	CAP_ENTRY__L(KVM_CAP_S390_VCPU_RESETS),
299	CAP_ENTRY__L(KVM_CAP_S390_PROTECTED), /* 180 */
300	CAP_ENTRY__L(KVM_CAP_PPC_SECURE_GUEST),
301	CAP_ENTRY__L(KVM_CAP_HALT_POLL),
302	CAP_ENTRY__L(KVM_CAP_ASYNC_PF_INT),
303	CAP_ENTRY__L(KVM_CAP_LAST_CPU),
304	CAP_ENTRY__L(KVM_CAP_SMALLER_MAXPHYADDR),
305	CAP_ENTRY__L(KVM_CAP_S390_DIAG318),
306	CAP_ENTRY__L(KVM_CAP_STEAL_TIME),
307	#ifdef VBOX_VMM_TARGET_ARMV8
308	CAP_ENTRY__L(KVM_CAP_X86_USER_SPACE_MSR), /* (since 5.10) */
309	CAP_ENTRY__L(KVM_CAP_X86_MSR_FILTER),
310	#else
311	CAP_ENTRY_ML(KVM_CAP_X86_USER_SPACE_MSR), /* (since 5.10) */
312	CAP_ENTRY_ML(KVM_CAP_X86_MSR_FILTER),
313	#endif
314	CAP_ENTRY__L(KVM_CAP_ENFORCE_PV_FEATURE_CPUID), /* 190 */
315	CAP_ENTRY__L(KVM_CAP_SYS_HYPERV_CPUID),
316	CAP_ENTRY__L(KVM_CAP_DIRTY_LOG_RING),
317	CAP_ENTRY__L(KVM_CAP_X86_BUS_LOCK_EXIT),
318	CAP_ENTRY__L(KVM_CAP_PPC_DAWR1),
319	CAP_ENTRY__L(KVM_CAP_SET_GUEST_DEBUG2),
320	CAP_ENTRY__L(KVM_CAP_SGX_ATTRIBUTE),
321	CAP_ENTRY__L(KVM_CAP_VM_COPY_ENC_CONTEXT_FROM),
322	CAP_ENTRY__L(KVM_CAP_PTP_KVM),
323	CAP_ENTRY__U(199),
324	CAP_ENTRY__U(200),
325	CAP_ENTRY__U(201),
326	CAP_ENTRY__U(202),
327	CAP_ENTRY__U(203),
328	CAP_ENTRY__U(204),
329	CAP_ENTRY__U(205),
330	CAP_ENTRY__U(206),
331	CAP_ENTRY__U(207),
332	CAP_ENTRY__U(208),
333	CAP_ENTRY__U(209),
334	CAP_ENTRY__U(210),
335	CAP_ENTRY__U(211),
336	CAP_ENTRY__U(212),
337	CAP_ENTRY__U(213),
338	CAP_ENTRY__U(214),
339	CAP_ENTRY__U(215),
340	CAP_ENTRY__U(216),
341	};
342
343	LogRel(("NEM: KVM capabilities (system):\n"));
344	int rcRet = VINF_SUCCESS;
345	for (unsigned i = 0; i < RT_ELEMENTS(s_aCaps); i++)
346	{
347	int rc = ioctl(pVM->nem.s.fdKvm, KVM_CHECK_EXTENSION, s_aCaps[i].iCap);
348	if (rc >= 10)
349	LogRel(("NEM: %36s: %#x (%d)\n", s_aCaps[i].pszName, rc, rc));
350	else if (rc >= 0)
351	LogRel(("NEM: %36s: %d\n", s_aCaps[i].pszName, rc));
352	else
353	LogRel(("NEM: %s failed: %d/%d\n", s_aCaps[i].pszName, rc, errno));
354	switch (s_aCaps[i].cbNem)
355	{
356	case 0:
357	break;
358	case 1:
359	{
360	uint8_t puValue = (uint8_t )&pVM->nem.padding[s_aCaps[i].offNem];
361	AssertReturn(s_aCaps[i].offNem <= sizeof(NEM) - sizeof(*puValue), VERR_NEM_IPE_0);
362	*puValue = (uint8_t)rc;
363	AssertLogRelMsg((int)*puValue == rc, ("%s: %#x\n", s_aCaps[i].pszName, rc));
364	break;
365	}
366	case 2:
367	{
368	uint16_t puValue = (uint16_t )&pVM->nem.padding[s_aCaps[i].offNem];
369	AssertReturn(s_aCaps[i].offNem <= sizeof(NEM) - sizeof(*puValue), VERR_NEM_IPE_0);
370	*puValue = (uint16_t)rc;
371	AssertLogRelMsg((int)*puValue == rc, ("%s: %#x\n", s_aCaps[i].pszName, rc));
372	break;
373	}
374	case 4:
375	{
376	uint32_t puValue = (uint32_t )&pVM->nem.padding[s_aCaps[i].offNem];
377	AssertReturn(s_aCaps[i].offNem <= sizeof(NEM) - sizeof(*puValue), VERR_NEM_IPE_0);
378	*puValue = (uint32_t)rc;
379	AssertLogRelMsg((int)*puValue == rc, ("%s: %#x\n", s_aCaps[i].pszName, rc));
380	break;
381	}
382	default:
383	rcRet = RTErrInfoSetF(pErrInfo, VERR_NEM_IPE_0, "s_aCaps[%u] is bad: cbNem=%#x - %s",
384	i, s_aCaps[i].pszName, s_aCaps[i].cbNem);
385	AssertFailedReturn(rcRet);
386	}
387
388	/*
389	* Is a require non-zero entry zero or failing?
390	*/
391	if (s_aCaps[i].fReqNonZero && rc <= 0)
392	rcRet = RTERRINFO_LOG_REL_ADD_F(pErrInfo, VERR_NEM_MISSING_FEATURE,
393	"Required capability '%s' is missing!", s_aCaps[i].pszName);
394	}
395
396	/*
397	* Get per VCpu KVM_RUN MMAP area size.
398	*/
399	int rc = ioctl(pVM->nem.s.fdKvm, KVM_GET_VCPU_MMAP_SIZE, 0UL);
400	if ((unsigned)rc < _64M)
401	{
402	pVM->nem.s.cbVCpuMmap = (uint32_t)rc;
403	LogRel(("NEM: %36s: %#x (%d)\n", "KVM_GET_VCPU_MMAP_SIZE", rc, rc));
404	}
405	else if (rc < 0)
406	rcRet = RTERRINFO_LOG_REL_ADD_F(pErrInfo, VERR_NEM_MISSING_FEATURE, "KVM_GET_VCPU_MMAP_SIZE failed: %d", errno);
407	else
408	rcRet = RTERRINFO_LOG_REL_ADD_F(pErrInfo, VERR_NEM_INIT_FAILED, "Odd KVM_GET_VCPU_MMAP_SIZE value: %#x (%d)", rc, rc);
409
410	/*
411	* Init the slot ID bitmap.
412	*/
413	ASMBitSet(&pVM->nem.s.bmSlotIds[0], 0); /* don't use slot 0 */
414	if (pVM->nem.s.cMaxMemSlots < _32K)
415	ASMBitSetRange(&pVM->nem.s.bmSlotIds[0], pVM->nem.s.cMaxMemSlots, _32K);
416	ASMBitSet(&pVM->nem.s.bmSlotIds[0], _32K - 1); /* don't use the last slot */
417
418	return rcRet;
419	}
420
421
422	/** @callback_method_impl{FNVMMEMTRENDEZVOUS} */
423	static DECLCALLBACK(VBOXSTRICTRC) nemR3LnxFixThreadPoke(PVM pVM, PVMCPU pVCpu, void *pvUser)
424	{
425	RT_NOREF(pVM, pvUser);
426	int rc = RTThreadControlPokeSignal(pVCpu->hThread, true /fEnable/);
427	AssertLogRelRC(rc);
428	return VINF_SUCCESS;
429	}
430
431
432	/**
433	* Try initialize the native API.
434	*
435	* This may only do part of the job, more can be done in
436	* nemR3NativeInitAfterCPUM() and nemR3NativeInitCompleted().
437	*
438	* @returns VBox status code.
439	* @param pVM The cross context VM structure.
440	* @param fFallback Whether we're in fallback mode or use-NEM mode. In
441	* the latter we'll fail if we cannot initialize.
442	* @param fForced Whether the HMForced flag is set and we should
443	* fail if we cannot initialize.
444	*/
445	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced)
446	{
447	RT_NOREF(pVM, fFallback, fForced);
448	/*
449	* Some state init.
450	*/
451	pVM->nem.s.fdKvm = -1;
452	pVM->nem.s.fdVm = -1;
453	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
454	{
455	PNEMCPU pNemCpu = &pVM->apCpusR3[idCpu]->nem.s;
456	pNemCpu->fdVCpu = -1;
457	}
458
459	/*
460	* Error state.
461	* The error message will be non-empty on failure and 'rc' will be set too.
462	*/
463	RTERRINFOSTATIC ErrInfo;
464	PRTERRINFO pErrInfo = RTErrInfoInitStatic(&ErrInfo);
465
466	/*
467	* Open kvm subsystem so we can issue system ioctls.
468	*/
469	int rc;
470	int fdKvm = open("/dev/kvm", O_RDWR \| O_CLOEXEC);
471	if (fdKvm >= 0)
472	{
473	pVM->nem.s.fdKvm = fdKvm;
474
475	/*
476	* Check capabilities.
477	*/
478	rc = nemR3LnxInitCheckCapabilities(pVM, pErrInfo);
479	if (RT_SUCCESS(rc))
480	{
481	/*
482	* Create an empty VM since it is recommended we check capabilities on
483	* the VM rather than the system descriptor.
484	*/
485	#ifdef VBOX_VMM_TARGET_ARMV8
486	int fdVm = ioctl(fdKvm, KVM_CREATE_VM, pVM->nem.s.cIpaBits);
487	#else
488	int fdVm = ioctl(fdKvm, KVM_CREATE_VM, 0UL /* Type must be zero on x86 */);
489	#endif
490	if (fdVm >= 0)
491	{
492	pVM->nem.s.fdVm = fdVm;
493
494	/*
495	* Set up the VM (more on this later).
496	*/
497	rc = nemR3LnxInitSetupVm(pVM, pErrInfo);
498	if (RT_SUCCESS(rc))
499	{
500	/*
501	* Set ourselves as the execution engine and make config adjustments.
502	*/
503	VM_SET_MAIN_EXECUTION_ENGINE(pVM, VM_EXEC_ENGINE_NATIVE_API);
504	Log(("NEM: Marked active!\n"));
505	PGMR3EnableNemMode(pVM);
506
507	/*
508	* Register release statistics
509	*/
510	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
511	{
512	PNEMCPU pNemCpu = &pVM->apCpusR3[idCpu]->nem.s;
513	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnDemand, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of on-demand state imports", "/NEM/CPU%u/ImportOnDemand", idCpu);
514	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnReturn, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of state imports on loop return", "/NEM/CPU%u/ImportOnReturn", idCpu);
515	STAMR3RegisterF(pVM, &pNemCpu->StatImportOnReturnSkipped, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of skipped state imports on loop return", "/NEM/CPU%u/ImportOnReturnSkipped", idCpu);
516	STAMR3RegisterF(pVM, &pNemCpu->StatImportPendingInterrupt, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of times an interrupt was pending when importing from KVM", "/NEM/CPU%u/ImportPendingInterrupt", idCpu);
517	STAMR3RegisterF(pVM, &pNemCpu->StatExportPendingInterrupt, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of times an interrupt was pending when exporting to KVM", "/NEM/CPU%u/ExportPendingInterrupt", idCpu);
518	STAMR3RegisterF(pVM, &pNemCpu->StatFlushExitOnReturn, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of times a KVM_EXIT_IO or KVM_EXIT_MMIO was flushed before returning to EM", "/NEM/CPU%u/FlushExitOnReturn", idCpu);
519	STAMR3RegisterF(pVM, &pNemCpu->StatFlushExitOnReturn1Loop, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of times a KVM_EXIT_IO or KVM_EXIT_MMIO was flushed before returning to EM", "/NEM/CPU%u/FlushExitOnReturn-01-loop", idCpu);
520	STAMR3RegisterF(pVM, &pNemCpu->StatFlushExitOnReturn2Loops, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of times a KVM_EXIT_IO or KVM_EXIT_MMIO was flushed before returning to EM", "/NEM/CPU%u/FlushExitOnReturn-02-loops", idCpu);
521	STAMR3RegisterF(pVM, &pNemCpu->StatFlushExitOnReturn3Loops, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of times a KVM_EXIT_IO or KVM_EXIT_MMIO was flushed before returning to EM", "/NEM/CPU%u/FlushExitOnReturn-03-loops", idCpu);
522	STAMR3RegisterF(pVM, &pNemCpu->StatFlushExitOnReturn4PlusLoops, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of times a KVM_EXIT_IO or KVM_EXIT_MMIO was flushed before returning to EM", "/NEM/CPU%u/FlushExitOnReturn-04-to-7-loops", idCpu);
523	STAMR3RegisterF(pVM, &pNemCpu->StatQueryCpuTick, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of TSC queries", "/NEM/CPU%u/QueryCpuTick", idCpu);
524	STAMR3RegisterF(pVM, &pNemCpu->StatExitTotal, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "All exits", "/NEM/CPU%u/Exit", idCpu);
525	STAMR3RegisterF(pVM, &pNemCpu->StatExitIo, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_IO", "/NEM/CPU%u/Exit/Io", idCpu);
526	STAMR3RegisterF(pVM, &pNemCpu->StatExitMmio, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_MMIO", "/NEM/CPU%u/Exit/Mmio", idCpu);
527	STAMR3RegisterF(pVM, &pNemCpu->StatExitSetTpr, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_SET_TRP", "/NEM/CPU%u/Exit/SetTpr", idCpu);
528	STAMR3RegisterF(pVM, &pNemCpu->StatExitTprAccess, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_TPR_ACCESS", "/NEM/CPU%u/Exit/TprAccess", idCpu);
529	STAMR3RegisterF(pVM, &pNemCpu->StatExitRdMsr, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_RDMSR", "/NEM/CPU%u/Exit/RdMsr", idCpu);
530	STAMR3RegisterF(pVM, &pNemCpu->StatExitWrMsr, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_WRMSR", "/NEM/CPU%u/Exit/WrMsr", idCpu);
531	STAMR3RegisterF(pVM, &pNemCpu->StatExitIrqWindowOpen, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_IRQ_WINDOWS_OPEN", "/NEM/CPU%u/Exit/IrqWindowOpen", idCpu);
532	STAMR3RegisterF(pVM, &pNemCpu->StatExitHalt, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_HLT", "/NEM/CPU%u/Exit/Hlt", idCpu);
533	STAMR3RegisterF(pVM, &pNemCpu->StatExitIntr, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_INTR", "/NEM/CPU%u/Exit/Intr", idCpu);
534	STAMR3RegisterF(pVM, &pNemCpu->StatExitHypercall, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_HYPERCALL", "/NEM/CPU%u/Exit/Hypercall", idCpu);
535	STAMR3RegisterF(pVM, &pNemCpu->StatExitDebug, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_DEBUG", "/NEM/CPU%u/Exit/Debug", idCpu);
536	STAMR3RegisterF(pVM, &pNemCpu->StatExitBusLock, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_BUS_LOCK", "/NEM/CPU%u/Exit/BusLock", idCpu);
537	STAMR3RegisterF(pVM, &pNemCpu->StatExitInternalErrorEmulation, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_INTERNAL_ERROR/EMULATION", "/NEM/CPU%u/Exit/InternalErrorEmulation", idCpu);
538	STAMR3RegisterF(pVM, &pNemCpu->StatExitInternalErrorFatal, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "KVM_EXIT_INTERNAL_ERROR/*", "/NEM/CPU%u/Exit/InternalErrorFatal", idCpu);
539	}
540
541	/*
542	* Success.
543	*/
544	return VINF_SUCCESS;
545	}
546	close(fdVm);
547	pVM->nem.s.fdVm = -1;
548
549	/*
550	* Bail out.
551	*/
552	}
553	else
554	rc = RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED, "KVM_CREATE_VM failed: %u", errno);
555	}
556	close(fdKvm);
557	pVM->nem.s.fdKvm = -1;
558	}
559	else if (errno == EACCES)
560	rc = RTErrInfoSet(pErrInfo, VERR_ACCESS_DENIED, "Do not have access to open /dev/kvm for reading & writing.");
561	else if (errno == ENOENT)
562	rc = RTErrInfoSet(pErrInfo, VERR_NOT_SUPPORTED, "KVM is not availble (/dev/kvm does not exist)");
563	else
564	rc = RTErrInfoSetF(pErrInfo, RTErrConvertFromErrno(errno), "Failed to open '/dev/kvm': %u", errno);
565
566	/*
567	* We only fail if in forced mode, otherwise just log the complaint and return.
568	*/
569	Assert(RTErrInfoIsSet(pErrInfo));
570	if ( (fForced \|\| !fFallback)
571	&& pVM->bMainExecutionEngine != VM_EXEC_ENGINE_NATIVE_API)
572	return VMSetError(pVM, RT_SUCCESS_NP(rc) ? VERR_NEM_NOT_AVAILABLE : rc, RT_SRC_POS, "%s", pErrInfo->pszMsg);
573	LogRel(("NEM: Not available: %s\n", pErrInfo->pszMsg));
574	return VINF_SUCCESS;
575	}
576
577
578	/**
579	* This is called after CPUMR3Init is done.
580	*
581	* @returns VBox status code.
582	* @param pVM The VM handle..
583	*/
584	int nemR3NativeInitAfterCPUM(PVM pVM)
585	{
586	/*
587	* Validate sanity.
588	*/
589	AssertReturn(pVM->nem.s.fdKvm >= 0, VERR_WRONG_ORDER);
590	AssertReturn(pVM->nem.s.fdVm >= 0, VERR_WRONG_ORDER);
591	AssertReturn(pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API, VERR_WRONG_ORDER);
592
593	/** @todo */
594
595	return VINF_SUCCESS;
596	}
597
598
599	int nemR3NativeTerm(PVM pVM)
600	{
601	/*
602	* Per-cpu data
603	*/
604	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
605	{
606	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
607
608	if (pVCpu->nem.s.fdVCpu != -1)
609	{
610	close(pVCpu->nem.s.fdVCpu);
611	pVCpu->nem.s.fdVCpu = -1;
612	}
613	if (pVCpu->nem.s.pRun)
614	{
615	munmap(pVCpu->nem.s.pRun, pVM->nem.s.cbVCpuMmap);
616	pVCpu->nem.s.pRun = NULL;
617	}
618	}
619
620	/*
621	* Global data.
622	*/
623	if (pVM->nem.s.fdVm != -1)
624	{
625	close(pVM->nem.s.fdVm);
626	pVM->nem.s.fdVm = -1;
627	}
628
629	if (pVM->nem.s.fdKvm != -1)
630	{
631	close(pVM->nem.s.fdKvm);
632	pVM->nem.s.fdKvm = -1;
633	}
634	return VINF_SUCCESS;
635	}
636
637
638	/**
639	* VM reset notification.
640	*
641	* @param pVM The cross context VM structure.
642	*/
643	void nemR3NativeReset(PVM pVM)
644	{
645	RT_NOREF(pVM);
646	}
647
648
649	/**
650	* Reset CPU due to INIT IPI or hot (un)plugging.
651	*
652	* @param pVCpu The cross context virtual CPU structure of the CPU being
653	* reset.
654	* @param fInitIpi Whether this is the INIT IPI or hot (un)plugging case.
655	*/
656	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi)
657	{
658	RT_NOREF(pVCpu, fInitIpi);
659	}
660
661
662	/*********************************************************************************************************************************
663	* Memory management *
664	*********************************************************************************************************************************/
665
666
667	/**
668	* Allocates a memory slot ID.
669	*
670	* @returns Slot ID on success, UINT16_MAX on failure.
671	*/
672	static uint16_t nemR3LnxMemSlotIdAlloc(PVM pVM)
673	{
674	/* Use the hint first. */
675	uint16_t idHint = pVM->nem.s.idPrevSlot;
676	if (idHint < _32K - 1)
677	{
678	int32_t idx = ASMBitNextClear(&pVM->nem.s.bmSlotIds, _32K, idHint);
679	Assert(idx < _32K);
680	if (idx > 0 && !ASMAtomicBitTestAndSet(&pVM->nem.s.bmSlotIds, idx))
681	return pVM->nem.s.idPrevSlot = (uint16_t)idx;
682	}
683
684	/*
685	* Search the whole map from the start.
686	*/
687	int32_t idx = ASMBitFirstClear(&pVM->nem.s.bmSlotIds, _32K);
688	Assert(idx < _32K);
689	if (idx > 0 && !ASMAtomicBitTestAndSet(&pVM->nem.s.bmSlotIds, idx))
690	return pVM->nem.s.idPrevSlot = (uint16_t)idx;
691
692	Assert(idx < 0 /shouldn't trigger unless there is a race /);
693	return UINT16_MAX; /* caller is expected to assert. */
694	}
695
696
697	/**
698	* Frees a memory slot ID
699	*/
700	static void nemR3LnxMemSlotIdFree(PVM pVM, uint16_t idSlot)
701	{
702	if (RT_LIKELY(idSlot < _32K && ASMAtomicBitTestAndClear(&pVM->nem.s.bmSlotIds, idSlot)))
703	{ /likely/ }
704	else
705	AssertMsgFailed(("idSlot=%u (%#x)\n", idSlot, idSlot));
706	}
707
708
709
710	VMMR3_INT_DECL(int) NEMR3NotifyPhysRamRegister(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvR3,
711	uint8_t pu2State, uint32_t puNemRange)
712	{
713	uint16_t idSlot = nemR3LnxMemSlotIdAlloc(pVM);
714	AssertLogRelReturn(idSlot < _32K, VERR_NEM_MAP_PAGES_FAILED);
715
716	Log5(("NEMR3NotifyPhysRamRegister: %RGp LB %RGp, pvR3=%p pu2State=%p (%d) puNemRange=%p (%d) - idSlot=%#x\n",
717	GCPhys, cb, pvR3, pu2State, pu2State, puNemRange, *puNemRange, idSlot));
718
719	struct kvm_userspace_memory_region Region;
720	Region.slot = idSlot;
721	Region.flags = 0;
722	Region.guest_phys_addr = GCPhys;
723	Region.memory_size = cb;
724	Region.userspace_addr = (uintptr_t)pvR3;
725
726	int rc = ioctl(pVM->nem.s.fdVm, KVM_SET_USER_MEMORY_REGION, &Region);
727	if (rc == 0)
728	{
729	*pu2State = 0;
730	*puNemRange = idSlot;
731	return VINF_SUCCESS;
732	}
733
734	LogRel(("NEMR3NotifyPhysRamRegister: %RGp LB %RGp, pvR3=%p, idSlot=%#x failed: %u/%u\n", GCPhys, cb, pvR3, idSlot, rc, errno));
735	nemR3LnxMemSlotIdFree(pVM, idSlot);
736	return VERR_NEM_MAP_PAGES_FAILED;
737	}
738
739
740	VMMR3_INT_DECL(bool) NEMR3IsMmio2DirtyPageTrackingSupported(PVM pVM)
741	{
742	RT_NOREF(pVM);
743	return true;
744	}
745
746
747	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMapEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags,
748	void pvRam, void pvMmio2, uint8_t pu2State, uint32_t puNemRange)
749	{
750	Log5(("NEMR3NotifyPhysMmioExMapEarly: %RGp LB %RGp fFlags=%#x pvRam=%p pvMmio2=%p pu2State=%p (%d) puNemRange=%p (%#x)\n",
751	GCPhys, cb, fFlags, pvRam, pvMmio2, pu2State, pu2State, puNemRange, puNemRange ? puNemRange : UINT32_MAX));
752	RT_NOREF(pvRam);
753
754	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_REPLACE)
755	{
756	/** @todo implement splitting and whatnot of ranges if we want to be 100%
757	* conforming (just modify RAM registrations in MM.cpp to test). */
758	AssertLogRelMsgFailedReturn(("%RGp LB %RGp fFlags=%#x pvRam=%p pvMmio2=%p\n", GCPhys, cb, fFlags, pvRam, pvMmio2),
759	VERR_NEM_MAP_PAGES_FAILED);
760	}
761
762	/*
763	* Register MMIO2.
764	*/
765	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2)
766	{
767	AssertReturn(pvMmio2, VERR_NEM_MAP_PAGES_FAILED);
768	AssertReturn(puNemRange, VERR_NEM_MAP_PAGES_FAILED);
769
770	uint16_t idSlot = nemR3LnxMemSlotIdAlloc(pVM);
771	AssertLogRelReturn(idSlot < _32K, VERR_NEM_MAP_PAGES_FAILED);
772
773	struct kvm_userspace_memory_region Region;
774	Region.slot = idSlot;
775	Region.flags = fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_TRACK_DIRTY_PAGES ? KVM_MEM_LOG_DIRTY_PAGES : 0;
776	Region.guest_phys_addr = GCPhys;
777	Region.memory_size = cb;
778	Region.userspace_addr = (uintptr_t)pvMmio2;
779
780	int rc = ioctl(pVM->nem.s.fdVm, KVM_SET_USER_MEMORY_REGION, &Region);
781	if (rc == 0)
782	{
783	*pu2State = 0;
784	*puNemRange = idSlot;
785	Log5(("NEMR3NotifyPhysMmioExMapEarly: %RGp LB %RGp fFlags=%#x pvMmio2=%p - idSlot=%#x\n",
786	GCPhys, cb, fFlags, pvMmio2, idSlot));
787	return VINF_SUCCESS;
788	}
789
790	nemR3LnxMemSlotIdFree(pVM, idSlot);
791	AssertLogRelMsgFailedReturn(("%RGp LB %RGp fFlags=%#x, pvMmio2=%p, idSlot=%#x failed: %u/%u\n",
792	GCPhys, cb, fFlags, pvMmio2, idSlot, errno, rc),
793	VERR_NEM_MAP_PAGES_FAILED);
794	}
795
796	/* MMIO, don't care. */
797	*pu2State = 0;
798	*puNemRange = UINT32_MAX;
799	return VINF_SUCCESS;
800	}
801
802
803	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMapLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags,
804	void pvRam, void pvMmio2, uint32_t *puNemRange)
805	{
806	RT_NOREF(pVM, GCPhys, cb, fFlags, pvRam, pvMmio2, puNemRange);
807	return VINF_SUCCESS;
808	}
809
810
811	VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExUnmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags, void *pvRam,
812	void pvMmio2, uint8_t pu2State, uint32_t *puNemRange)
813	{
814	Log5(("NEMR3NotifyPhysMmioExUnmap: %RGp LB %RGp fFlags=%#x pvRam=%p pvMmio2=%p pu2State=%p puNemRange=%p (%#x)\n",
815	GCPhys, cb, fFlags, pvRam, pvMmio2, pu2State, puNemRange, *puNemRange));
816	RT_NOREF(pVM, GCPhys, cb, fFlags, pvRam, pvMmio2, pu2State);
817
818	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_REPLACE)
819	{
820	/** @todo implement splitting and whatnot of ranges if we want to be 100%
821	* conforming (just modify RAM registrations in MM.cpp to test). */
822	AssertLogRelMsgFailedReturn(("%RGp LB %RGp fFlags=%#x pvRam=%p pvMmio2=%p\n", GCPhys, cb, fFlags, pvRam, pvMmio2),
823	VERR_NEM_UNMAP_PAGES_FAILED);
824	}
825
826	if (fFlags & NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2)
827	{
828	uint32_t const idSlot = *puNemRange;
829	AssertReturn(idSlot > 0 && idSlot < _32K, VERR_NEM_IPE_4);
830	AssertReturn(ASMBitTest(pVM->nem.s.bmSlotIds, idSlot), VERR_NEM_IPE_4);
831
832	struct kvm_userspace_memory_region Region;
833	Region.slot = idSlot;
834	Region.flags = 0;
835	Region.guest_phys_addr = GCPhys;
836	Region.memory_size = 0; /* this deregisters it. */
837	Region.userspace_addr = (uintptr_t)pvMmio2;
838
839	int rc = ioctl(pVM->nem.s.fdVm, KVM_SET_USER_MEMORY_REGION, &Region);
840	if (rc == 0)
841	{
842	if (pu2State)
843	*pu2State = 0;
844	*puNemRange = UINT32_MAX;
845	nemR3LnxMemSlotIdFree(pVM, idSlot);
846	return VINF_SUCCESS;
847	}
848
849	AssertLogRelMsgFailedReturn(("%RGp LB %RGp fFlags=%#x, pvMmio2=%p, idSlot=%#x failed: %u/%u\n",
850	GCPhys, cb, fFlags, pvMmio2, idSlot, errno, rc),
851	VERR_NEM_UNMAP_PAGES_FAILED);
852	}
853
854	if (pu2State)
855	*pu2State = UINT8_MAX;
856	return VINF_SUCCESS;
857	}
858
859
860	VMMR3_INT_DECL(int) NEMR3PhysMmio2QueryAndResetDirtyBitmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t uNemRange,
861	void *pvBitmap, size_t cbBitmap)
862	{
863	AssertReturn(uNemRange > 0 && uNemRange < _32K, VERR_NEM_IPE_4);
864	AssertReturn(ASMBitTest(pVM->nem.s.bmSlotIds, uNemRange), VERR_NEM_IPE_4);
865
866	RT_NOREF(GCPhys, cbBitmap);
867
868	struct kvm_dirty_log DirtyLog;
869	DirtyLog.slot = uNemRange;
870	DirtyLog.padding1 = 0;
871	DirtyLog.dirty_bitmap = pvBitmap;
872
873	int rc = ioctl(pVM->nem.s.fdVm, KVM_GET_DIRTY_LOG, &DirtyLog);
874	AssertLogRelMsgReturn(rc == 0, ("%RGp LB %RGp idSlot=%#x failed: %u/%u\n", GCPhys, cb, uNemRange, errno, rc),
875	VERR_NEM_QUERY_DIRTY_BITMAP_FAILED);
876
877	return VINF_SUCCESS;
878	}
879
880
881	VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvPages, uint32_t fFlags,
882	uint8_t pu2State, uint32_t puNemRange)
883	{
884	Log5(("NEMR3NotifyPhysRomRegisterEarly: %RGp LB %RGp pvPages=%p fFlags=%#x\n", GCPhys, cb, pvPages, fFlags));
885	*pu2State = UINT8_MAX;
886
887	/* Don't support puttint ROM where there is already RAM. For
888	now just shuffle the registrations till it works... */
889	AssertLogRelMsgReturn(!(fFlags & NEM_NOTIFY_PHYS_ROM_F_REPLACE), ("%RGp LB %RGp fFlags=%#x\n", GCPhys, cb, fFlags),
890	VERR_NEM_MAP_PAGES_FAILED);
891
892	/** @todo figure out how to do shadow ROMs. */
893
894	/*
895	* We only allocate a slot number here in case we need to use it to
896	* fend of physical handler fun.
897	*/
898	uint16_t idSlot = nemR3LnxMemSlotIdAlloc(pVM);
899	AssertLogRelReturn(idSlot < _32K, VERR_NEM_MAP_PAGES_FAILED);
900
901	*pu2State = 0;
902	*puNemRange = idSlot;
903	Log5(("NEMR3NotifyPhysRomRegisterEarly: %RGp LB %RGp fFlags=%#x pvPages=%p - idSlot=%#x\n",
904	GCPhys, cb, fFlags, pvPages, idSlot));
905	RT_NOREF(GCPhys, cb, fFlags, pvPages);
906	return VINF_SUCCESS;
907	}
908
909
910	VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvPages,
911	uint32_t fFlags, uint8_t pu2State, uint32_t puNemRange)
912	{
913	Log5(("NEMR3NotifyPhysRomRegisterLate: %RGp LB %RGp pvPages=%p fFlags=%#x pu2State=%p (%d) puNemRange=%p (%#x)\n",
914	GCPhys, cb, pvPages, fFlags, pu2State, pu2State, puNemRange, puNemRange));
915
916	AssertPtrReturn(pvPages, VERR_NEM_IPE_5);
917
918	uint32_t const idSlot = *puNemRange;
919	AssertReturn(idSlot > 0 && idSlot < _32K, VERR_NEM_IPE_4);
920	AssertReturn(ASMBitTest(pVM->nem.s.bmSlotIds, idSlot), VERR_NEM_IPE_4);
921
922	*pu2State = UINT8_MAX;
923
924	/*
925	* Do the actual setting of the user pages here now that we've
926	* got a valid pvPages (typically isn't available during the early
927	* notification, unless we're replacing RAM).
928	*/
929	/** @todo r=bird: if it's overlapping RAM, we shouldn't need an additional
930	* registration, should we? */
931	struct kvm_userspace_memory_region Region;
932	Region.slot = idSlot;
933	Region.flags = 0;
934	Region.guest_phys_addr = GCPhys;
935	Region.memory_size = cb;
936	Region.userspace_addr = (uintptr_t)pvPages;
937
938	int rc = ioctl(pVM->nem.s.fdVm, KVM_SET_USER_MEMORY_REGION, &Region);
939	if (rc == 0)
940	{
941	*pu2State = 0;
942	Log5(("NEMR3NotifyPhysRomRegisterEarly: %RGp LB %RGp fFlags=%#x pvPages=%p - idSlot=%#x\n",
943	GCPhys, cb, fFlags, pvPages, idSlot));
944	return VINF_SUCCESS;
945	}
946	AssertLogRelMsgFailedReturn(("%RGp LB %RGp fFlags=%#x, pvPages=%p, idSlot=%#x failed: %u/%u\n",
947	GCPhys, cb, fFlags, pvPages, idSlot, errno, rc),
948	VERR_NEM_MAP_PAGES_FAILED);
949	}
950
951
952	VMMR3_INT_DECL(void) NEMR3NotifySetA20(PVMCPU pVCpu, bool fEnabled)
953	{
954	Log(("nemR3NativeNotifySetA20: fEnabled=%RTbool\n", fEnabled));
955	Assert(VM_IS_NEM_ENABLED(pVCpu->CTX_SUFF(pVM)));
956	RT_NOREF(pVCpu, fEnabled);
957	}
958
959
960	VMM_INT_DECL(void) NEMHCNotifyHandlerPhysicalDeregister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb,
961	RTR3PTR pvMemR3, uint8_t *pu2State)
962	{
963	Log5(("NEMHCNotifyHandlerPhysicalDeregister: %RGp LB %RGp enmKind=%d pvMemR3=%p pu2State=%p (%d)\n",
964	GCPhys, cb, enmKind, pvMemR3, pu2State, *pu2State));
965
966	*pu2State = UINT8_MAX;
967	RT_NOREF(pVM, enmKind, GCPhys, cb, pvMemR3);
968	}
969
970
971	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb)
972	{
973	Log5(("nemHCNativeNotifyHandlerPhysicalRegister: %RGp LB %RGp enmKind=%d\n", GCPhys, cb, enmKind));
974	RT_NOREF(pVM, enmKind, GCPhys, cb);
975	}
976
977
978	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
979	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM)
980	{
981	Log5(("nemHCNativeNotifyHandlerPhysicalModify: %RGp LB %RGp -> %RGp enmKind=%d fRestoreAsRAM=%d\n",
982	GCPhysOld, cb, GCPhysNew, enmKind, fRestoreAsRAM));
983	RT_NOREF(pVM, enmKind, GCPhysOld, GCPhysNew, cb, fRestoreAsRAM);
984	}
985
986
987	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
988	PGMPAGETYPE enmType, uint8_t *pu2State)
989	{
990	Log5(("nemHCNativeNotifyPhysPageAllocated: %RGp HCPhys=%RHp fPageProt=%#x enmType=%d *pu2State=%d\n",
991	GCPhys, HCPhys, fPageProt, enmType, *pu2State));
992	RT_NOREF(pVM, GCPhys, HCPhys, fPageProt, enmType, pu2State);
993	return VINF_SUCCESS;
994	}
995
996
997	VMM_INT_DECL(void) NEMHCNotifyPhysPageProtChanged(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, RTR3PTR pvR3, uint32_t fPageProt,
998	PGMPAGETYPE enmType, uint8_t *pu2State)
999	{
1000	Log5(("NEMHCNotifyPhysPageProtChanged: %RGp HCPhys=%RHp fPageProt=%#x enmType=%d *pu2State=%d\n",
1001	GCPhys, HCPhys, fPageProt, enmType, *pu2State));
1002	Assert(VM_IS_NEM_ENABLED(pVM));
1003	RT_NOREF(pVM, GCPhys, HCPhys, pvR3, fPageProt, enmType, pu2State);
1004
1005	}
1006
1007
1008	VMM_INT_DECL(void) NEMHCNotifyPhysPageChanged(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhysPrev, RTHCPHYS HCPhysNew,
1009	RTR3PTR pvNewR3, uint32_t fPageProt, PGMPAGETYPE enmType, uint8_t *pu2State)
1010	{
1011	Log5(("nemHCNativeNotifyPhysPageChanged: %RGp HCPhys=%RHp->%RHp pvNewR3=%p fPageProt=%#x enmType=%d *pu2State=%d\n",
1012	GCPhys, HCPhysPrev, HCPhysNew, pvNewR3, fPageProt, enmType, *pu2State));
1013	Assert(VM_IS_NEM_ENABLED(pVM));
1014	RT_NOREF(pVM, GCPhys, HCPhysPrev, HCPhysNew, pvNewR3, fPageProt, enmType, pu2State);
1015	}

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source: vbox/trunk/src/VBox/VMM/VMMR3/NEMR3NativeTemplate-linux.cpp.h@ 105702

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