gvm.h@ 92408

Last change on this file since 92408 was 92408, checked in by vboxsync, 3 years ago
VMM: Reworked most of the call-ring-3 stuff into setjmp-longjmp-on-assert and removed the stack switching/copying/resume code. bugref:10093 bugref:10124
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 9.6 KB

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1	/* $Id: gvm.h 92408 2021-11-12 21:49:06Z vboxsync $ */
2	/** @file
3	* GVM - The Global VM Data.
4	*/
5
6	/*
7	* Copyright (C) 2007-2020 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27	#ifndef VBOX_INCLUDED_vmm_gvm_h
28	#define VBOX_INCLUDED_vmm_gvm_h
29	#ifndef RT_WITHOUT_PRAGMA_ONCE
30	# pragma once
31	#endif
32
33	#ifndef USING_VMM_COMMON_DEFS
34	# error "Compile job does not include VMM_COMMON_DEFS from src/VBox/Config.kmk - make sure you really need to include this file!"
35	#endif
36	#include <VBox/types.h>
37	#include <VBox/vmm/vm.h>
38	#include <VBox/param.h>
39	#include <iprt/thread.h>
40	#include <iprt/assertcompile.h>
41
42
43	/** @defgroup grp_gvmcpu GVMCPU - The Global VMCPU Data
44	* @ingroup grp_vmm
45	* @{
46	*/
47
48	#if defined(__cplusplus) && !defined(GVM_C_STYLE_STRUCTURES)
49	typedef struct GVMCPU : public VMCPU
50	#else
51	typedef struct GVMCPU
52	#endif
53	{
54	#if !defined(__cplusplus) \|\| defined(GVM_C_STYLE_STRUCTURES)
55	VMCPU s;
56	#endif
57
58	/** VCPU id (0 - (pVM->cCpus - 1). */
59	VMCPUID idCpu;
60	/** Padding. */
61	uint32_t uPadding0;
62
63	/** Handle to the EMT thread. */
64	RTNATIVETHREAD hEMT;
65
66	/** Pointer to the global (ring-0) VM structure this CPU belongs to. */
67	R0PTRTYPE(PGVM) pGVM;
68	/** Pointer to the GVM structure, for CTX_SUFF use in VMMAll code. */
69	PGVM pVMR0;
70	/** The ring-3 address of this structure (only VMCPU part). */
71	PVMCPUR3 pVCpuR3;
72
73	/** Padding so the noisy stuff on a 64 byte boundrary.
74	* @note Keeping this working for 32-bit header syntax checking. */
75	uint8_t abPadding1[HC_ARCH_BITS == 32 ? 40 : 24];
76
77	/** Which host CPU ID is this EMT running on.
78	* Only valid when in RC or HMR0 with scheduling disabled. */
79	RTCPUID volatile idHostCpu;
80	/** The CPU set index corresponding to idHostCpu, UINT32_MAX if not valid.
81	* @remarks Best to make sure iHostCpuSet shares cache line with idHostCpu! */
82	uint32_t volatile iHostCpuSet;
83
84	/** Padding so gvmm starts on a 64 byte boundrary.
85	* @note Keeping this working for 32-bit header syntax checking. */
86	uint8_t abPadding2[56];
87
88	/** The GVMM per vcpu data. */
89	union
90	{
91	#ifdef VMM_INCLUDED_SRC_VMMR0_GVMMR0Internal_h
92	struct GVMMPERVCPU s;
93	#endif
94	uint8_t padding[64];
95	} gvmm;
96
97	/** The HM per vcpu data. */
98	union
99	{
100	#if defined(VMM_INCLUDED_SRC_include_HMInternal_h) && defined(IN_RING0)
101	struct HMR0PERVCPU s;
102	#endif
103	uint8_t padding[1024];
104	} hmr0;
105
106	#ifdef VBOX_WITH_NEM_R0
107	/** The NEM per vcpu data. */
108	union
109	{
110	# if defined(VMM_INCLUDED_SRC_include_NEMInternal_h) && defined(IN_RING0)
111	struct NEMR0PERVCPU s;
112	# endif
113	uint8_t padding[64];
114	} nemr0;
115	#endif
116
117	union
118	{
119	#if defined(VMM_INCLUDED_SRC_include_VMMInternal_h) && defined(IN_RING0)
120	struct VMMR0PERVCPU s;
121	#endif
122	uint8_t padding[896];
123	} vmmr0;
124
125	union
126	{
127	#if defined(VMM_INCLUDED_SRC_include_PGMInternal_h) && defined(IN_RING0)
128	struct PGMR0PERVCPU s;
129	#endif
130	uint8_t padding[64];
131	} pgmr0;
132
133	/** Padding the structure size to page boundrary. */
134	#ifdef VBOX_WITH_NEM_R0
135	uint8_t abPadding3[4096 - 64*2 - 64 - 1024 - 64 - 896 - 64];
136	#else
137	uint8_t abPadding3[4096 - 64*2 - 64 - 1024 - 896 - 64];
138	#endif
139	} GVMCPU;
140	#if RT_GNUC_PREREQ(4, 6) && defined(__cplusplus)
141	# pragma GCC diagnostic push
142	#endif
143	#if RT_GNUC_PREREQ(4, 3) && defined(__cplusplus)
144	# pragma GCC diagnostic ignored "-Winvalid-offsetof"
145	#endif
146	AssertCompileMemberAlignment(GVMCPU, idCpu, 4096);
147	AssertCompileMemberAlignment(GVMCPU, gvmm, 64);
148	#ifdef VBOX_WITH_NEM_R0
149	AssertCompileMemberAlignment(GVMCPU, nemr0, 64);
150	#endif
151	AssertCompileSizeAlignment(GVMCPU, 4096);
152	#if RT_GNUC_PREREQ(4, 6) && defined(__cplusplus)
153	# pragma GCC diagnostic pop
154	#endif
155
156	/** @} */
157
158	/** @defgroup grp_gvm GVM - The Global VM Data
159	* @ingroup grp_vmm
160	* @{
161	*/
162
163	/**
164	* The Global VM Data.
165	*
166	* This is a ring-0 only structure where we put items we don't need to
167	* share with ring-3 or GC, like for instance various RTR0MEMOBJ handles.
168	*
169	* Unlike VM, there are no special alignment restrictions here. The
170	* paddings are checked by compile time assertions.
171	*/
172	#if defined(__cplusplus) && !defined(GVM_C_STYLE_STRUCTURES)
173	typedef struct GVM : public VM
174	#else
175	typedef struct GVM
176	#endif
177	{
178	#if !defined(__cplusplus) \|\| defined(GVM_C_STYLE_STRUCTURES)
179	VM s;
180	#endif
181	/** Magic / eye-catcher (GVM_MAGIC). */
182	uint32_t u32Magic;
183	/** The global VM handle for this VM. */
184	uint32_t hSelf;
185	/** Pointer to this structure (for validation purposes). */
186	PGVM pSelf;
187	/** The ring-3 mapping of the VM structure. */
188	PVMR3 pVMR3;
189	/** The support driver session the VM is associated with. */
190	PSUPDRVSESSION pSession;
191	/** Number of Virtual CPUs, i.e. how many entries there are in aCpus.
192	* Same same as VM::cCpus. */
193	uint32_t cCpus;
194	/** Padding so gvmm starts on a 64 byte boundrary. */
195	uint8_t abPadding[HC_ARCH_BITS == 32 ? 12 + 28 : 28];
196
197	/** The GVMM per vm data. */
198	union
199	{
200	#ifdef VMM_INCLUDED_SRC_VMMR0_GVMMR0Internal_h
201	struct GVMMPERVM s;
202	#endif
203	uint8_t padding[4352];
204	} gvmm;
205
206	/** The GMM per vm data. */
207	union
208	{
209	#ifdef VMM_INCLUDED_SRC_VMMR0_GMMR0Internal_h
210	struct GMMPERVM s;
211	#endif
212	uint8_t padding[1024];
213	} gmm;
214
215	/** The HM per vm data. */
216	union
217	{
218	#if defined(VMM_INCLUDED_SRC_include_HMInternal_h) && defined(IN_RING0)
219	struct HMR0PERVM s;
220	#endif
221	uint8_t padding[256];
222	} hmr0;
223
224	#ifdef VBOX_WITH_NEM_R0
225	/** The NEM per vcpu data. */
226	union
227	{
228	# if defined(VMM_INCLUDED_SRC_include_NEMInternal_h) && defined(IN_RING0)
229	struct NEMR0PERVM s;
230	# endif
231	uint8_t padding[256];
232	} nemr0;
233	#endif
234
235	/** The RAWPCIVM per vm data. */
236	union
237	{
238	#ifdef VBOX_INCLUDED_rawpci_h
239	struct RAWPCIPERVM s;
240	#endif
241	uint8_t padding[64];
242	} rawpci;
243
244	union
245	{
246	#if defined(VMM_INCLUDED_SRC_include_PDMInternal_h) && defined(IN_RING0)
247	struct PDMR0PERVM s;
248	#endif
249	uint8_t padding[2176];
250	} pdmr0;
251
252	union
253	{
254	#if defined(VMM_INCLUDED_SRC_include_PGMInternal_h) && defined(IN_RING0)
255	struct PGMR0PERVM s;
256	#endif
257	uint8_t padding[640];
258	} pgmr0;
259
260	union
261	{
262	#if defined(VMM_INCLUDED_SRC_include_IOMInternal_h) && defined(IN_RING0)
263	struct IOMR0PERVM s;
264	#endif
265	uint8_t padding[512];
266	} iomr0;
267
268	union
269	{
270	#if defined(VMM_INCLUDED_SRC_include_APICInternal_h) && defined(IN_RING0)
271	struct APICR0PERVM s;
272	#endif
273	uint8_t padding[64];
274	} apicr0;
275
276	union
277	{
278	#if defined(VMM_INCLUDED_SRC_include_DBGFInternal_h) && defined(IN_RING0)
279	struct DBGFR0PERVM s;
280	#endif
281	uint8_t padding[1024];
282	} dbgfr0;
283
284	union
285	{
286	#if defined(VMM_INCLUDED_SRC_include_TMInternal_h) && defined(IN_RING0)
287	TMR0PERVM s;
288	#endif
289	uint8_t padding[128];
290	} tmr0;
291
292	union
293	{
294	#if defined(VMM_INCLUDED_SRC_include_VMMInternal_h) && defined(IN_RING0)
295	VMMR0PERVM s;
296	#endif
297	uint8_t padding[704];
298	} vmmr0;
299
300	/** Padding so aCpus starts on a page boundrary. */
301	#ifdef VBOX_WITH_NEM_R0
302	uint8_t abPadding2[40962 - 64 - 256 - 256 - 1024 - 256 - 64 - 2176 - 640 - 512 - 64 - 1024 - 128 - 704 - sizeof(PGVMCPU) VMM_MAX_CPU_COUNT];
303	#else
304	uint8_t abPadding2[40962 - 64 - 256 - 256 - 1024 - 64 - 2176 - 640 - 512 - 64 - 1024 - 128 - 704 - sizeof(PGVMCPU) VMM_MAX_CPU_COUNT];
305	#endif
306
307	/** For simplifying CPU enumeration in VMMAll code. */
308	PGVMCPU apCpusR0[VMM_MAX_CPU_COUNT];
309
310	/** GVMCPU array for the configured number of virtual CPUs. */
311	GVMCPU aCpus[1];
312	} GVM;
313	#if 0
314	#if RT_GNUC_PREREQ(4, 6) && defined(__cplusplus)
315	# pragma GCC diagnostic push
316	#endif
317	#if RT_GNUC_PREREQ(4, 3) && defined(__cplusplus)
318	# pragma GCC diagnostic ignored "-Winvalid-offsetof"
319	#endif
320	AssertCompileMemberAlignment(GVM, u32Magic, 64);
321	AssertCompileMemberAlignment(GVM, gvmm, 64);
322	AssertCompileMemberAlignment(GVM, gmm, 64);
323	#ifdef VBOX_WITH_NEM_R0
324	AssertCompileMemberAlignment(GVM, nemr0, 64);
325	#endif
326	AssertCompileMemberAlignment(GVM, rawpci, 64);
327	AssertCompileMemberAlignment(GVM, pdmr0, 64);
328	AssertCompileMemberAlignment(GVM, aCpus, 4096);
329	AssertCompileSizeAlignment(GVM, 4096);
330	#if RT_GNUC_PREREQ(4, 6) && defined(__cplusplus)
331	# pragma GCC diagnostic pop
332	#endif
333	#endif
334
335	/** The GVM::u32Magic value (Wayne Shorter). */
336	#define GVM_MAGIC 0x19330825
337
338	/** @} */
339
340	#endif /* !VBOX_INCLUDED_vmm_gvm_h */
341

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source: vbox/trunk/include/VBox/vmm/gvm.h@ 92408

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