/* $Id: gvm.h 87792 2021-02-18 18:38:24Z vboxsync $ */ /** @file * GVM - The Global VM Data. */ /* * Copyright (C) 2007-2020 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ #ifndef VBOX_INCLUDED_vmm_gvm_h #define VBOX_INCLUDED_vmm_gvm_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #ifndef USING_VMM_COMMON_DEFS # error "Compile job does not include VMM_COMMON_DEFS from src/VBox/Config.kmk - make sure you really need to include this file!" #endif #include #include #include #include #include /** @defgroup grp_gvmcpu GVMCPU - The Global VMCPU Data * @ingroup grp_vmm * @{ */ #if defined(__cplusplus) && !defined(GVM_C_STYLE_STRUCTURES) typedef struct GVMCPU : public VMCPU #else typedef struct GVMCPU #endif { #if !defined(__cplusplus) || defined(GVM_C_STYLE_STRUCTURES) VMCPU s; #endif /** VCPU id (0 - (pVM->cCpus - 1). */ VMCPUID idCpu; /** Padding. */ uint32_t uPadding; /** Handle to the EMT thread. */ RTNATIVETHREAD hEMT; /** Pointer to the global (ring-0) VM structure this CPU belongs to. */ R0PTRTYPE(PGVM) pGVM; /** Pointer to the GVM structure, for CTX_SUFF use in VMMAll code. */ PGVM pVMR0; /** The ring-3 address of this structure (only VMCPU part). */ PVMCPUR3 pVCpuR3; /** Padding so gvmm starts on a 64 byte boundrary. * @note Keeping this working for 32-bit header syntax checking. */ uint8_t abPadding[HC_ARCH_BITS == 32 ? 40 : 24]; /** The GVMM per vcpu data. */ union { #ifdef VMM_INCLUDED_SRC_VMMR0_GVMMR0Internal_h struct GVMMPERVCPU s; #endif uint8_t padding[64]; } gvmm; /** The HM per vcpu data. */ union { #if defined(VMM_INCLUDED_SRC_include_HMInternal_h) && defined(IN_RING0) struct HMR0PERVCPU s; #endif uint8_t padding[1024]; } hmr0; #ifdef VBOX_WITH_NEM_R0 /** The NEM per vcpu data. */ union { # if defined(VMM_INCLUDED_SRC_include_NEMInternal_h) && defined(IN_RING0) struct NEMR0PERVCPU s; # endif uint8_t padding[64]; } nemr0; #endif /** Padding the structure size to page boundrary. */ #ifdef VBOX_WITH_NEM_R0 uint8_t abPadding2[4096 - 64 - 64 - 1024 - 64]; #else uint8_t abPadding2[4096 - 64 - 64 - 1024]; #endif } GVMCPU; #if RT_GNUC_PREREQ(4, 6) && defined(__cplusplus) # pragma GCC diagnostic push #endif #if RT_GNUC_PREREQ(4, 3) && defined(__cplusplus) # pragma GCC diagnostic ignored "-Winvalid-offsetof" #endif AssertCompileMemberAlignment(GVMCPU, idCpu, 4096); AssertCompileMemberAlignment(GVMCPU, gvmm, 64); #ifdef VBOX_WITH_NEM_R0 AssertCompileMemberAlignment(GVMCPU, nemr0, 64); #endif AssertCompileSizeAlignment(GVMCPU, 4096); #if RT_GNUC_PREREQ(4, 6) && defined(__cplusplus) # pragma GCC diagnostic pop #endif /** @} */ /** @defgroup grp_gvm GVM - The Global VM Data * @ingroup grp_vmm * @{ */ /** * The Global VM Data. * * This is a ring-0 only structure where we put items we don't need to * share with ring-3 or GC, like for instance various RTR0MEMOBJ handles. * * Unlike VM, there are no special alignment restrictions here. The * paddings are checked by compile time assertions. */ #if defined(__cplusplus) && !defined(GVM_C_STYLE_STRUCTURES) typedef struct GVM : public VM #else typedef struct GVM #endif { #if !defined(__cplusplus) || defined(GVM_C_STYLE_STRUCTURES) VM s; #endif /** Magic / eye-catcher (GVM_MAGIC). */ uint32_t u32Magic; /** The global VM handle for this VM. */ uint32_t hSelf; /** Pointer to this structure (for validation purposes). */ PGVM pSelf; /** The ring-3 mapping of the VM structure. */ PVMR3 pVMR3; /** The support driver session the VM is associated with. */ PSUPDRVSESSION pSession; /** Number of Virtual CPUs, i.e. how many entries there are in aCpus. * Same same as VM::cCpus. */ uint32_t cCpus; /** Padding so gvmm starts on a 64 byte boundrary. */ uint8_t abPadding[HC_ARCH_BITS == 32 ? 12 + 28 : 28]; /** The GVMM per vm data. */ union { #ifdef VMM_INCLUDED_SRC_VMMR0_GVMMR0Internal_h struct GVMMPERVM s; #endif uint8_t padding[256]; } gvmm; /** The GMM per vm data. */ union { #ifdef VMM_INCLUDED_SRC_VMMR0_GMMR0Internal_h struct GMMPERVM s; #endif uint8_t padding[1024]; } gmm; /** The HM per vm data. */ union { #if defined(VMM_INCLUDED_SRC_include_HMInternal_h) && defined(IN_RING0) struct HMR0PERVM s; #endif uint8_t padding[256]; } hmr0; #ifdef VBOX_WITH_NEM_R0 /** The NEM per vcpu data. */ union { # if defined(VMM_INCLUDED_SRC_include_NEMInternal_h) && defined(IN_RING0) struct NEMR0PERVM s; # endif uint8_t padding[256]; } nemr0; #endif /** The RAWPCIVM per vm data. */ union { #ifdef VBOX_INCLUDED_rawpci_h struct RAWPCIPERVM s; #endif uint8_t padding[64]; } rawpci; union { #if defined(VMM_INCLUDED_SRC_include_PDMInternal_h) && defined(IN_RING0) struct PDMR0PERVM s; #endif uint8_t padding[2176]; } pdmr0; union { #if defined(VMM_INCLUDED_SRC_include_PGMInternal_h) && defined(IN_RING0) struct PGMR0PERVM s; #endif uint8_t padding[640]; } pgmr0; union { #if defined(VMM_INCLUDED_SRC_include_IOMInternal_h) && defined(IN_RING0) struct IOMR0PERVM s; #endif uint8_t padding[512]; } iomr0; union { #if defined(VMM_INCLUDED_SRC_include_APICInternal_h) && defined(IN_RING0) struct APICR0PERVM s; #endif uint8_t padding[64]; } apicr0; union { #if defined(VMM_INCLUDED_SRC_include_DBGFInternal_h) && defined(IN_RING0) struct DBGFR0PERVM s; #endif uint8_t padding[1024]; } dbgfr0; union { #if defined(VMM_INCLUDED_SRC_include_TMInternal_h) && defined(IN_RING0) TMR0PERVM s; #endif uint8_t padding[128]; } tmr0; /** Padding so aCpus starts on a page boundrary. */ #ifdef VBOX_WITH_NEM_R0 uint8_t abPadding2[4096*2 - 64 - 256 - 256 - 1024 - 256 - 64 - 2176 - 640 - 512 - 64 - 1024 - 128 - sizeof(PGVMCPU) * VMM_MAX_CPU_COUNT]; #else uint8_t abPadding2[4096*2 - 64 - 256 - 256 - 1024 - 64 - 2176 - 640 - 512 - 64 - 1024 - 128 - sizeof(PGVMCPU) * VMM_MAX_CPU_COUNT]; #endif /** For simplifying CPU enumeration in VMMAll code. */ PGVMCPU apCpusR0[VMM_MAX_CPU_COUNT]; /** GVMCPU array for the configured number of virtual CPUs. */ GVMCPU aCpus[1]; } GVM; #if 0 #if RT_GNUC_PREREQ(4, 6) && defined(__cplusplus) # pragma GCC diagnostic push #endif #if RT_GNUC_PREREQ(4, 3) && defined(__cplusplus) # pragma GCC diagnostic ignored "-Winvalid-offsetof" #endif AssertCompileMemberAlignment(GVM, u32Magic, 64); AssertCompileMemberAlignment(GVM, gvmm, 64); AssertCompileMemberAlignment(GVM, gmm, 64); #ifdef VBOX_WITH_NEM_R0 AssertCompileMemberAlignment(GVM, nemr0, 64); #endif AssertCompileMemberAlignment(GVM, rawpci, 64); AssertCompileMemberAlignment(GVM, pdmr0, 64); AssertCompileMemberAlignment(GVM, aCpus, 4096); AssertCompileSizeAlignment(GVM, 4096); #if RT_GNUC_PREREQ(4, 6) && defined(__cplusplus) # pragma GCC diagnostic pop #endif #endif /** The GVM::u32Magic value (Wayne Shorter). */ #define GVM_MAGIC 0x19330825 /** @} */ #endif /* !VBOX_INCLUDED_vmm_gvm_h */