/* $Id: gvm.h 78438 2019-05-07 15:57:37Z vboxsync $ */ /** @file * GVM - The Global VM Data. */ /* * Copyright (C) 2007-2019 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 #include #ifdef VBOX_BUGREF_9217 # include #endif #include #include /** @defgroup grp_gvmcpu GVMCPU - The Global VMCPU Data * @ingroup grp_vmm * @{ */ #if defined(VBOX_BUGREF_9217) && defined(__cplusplus) typedef struct GVMCPU : public VMCPU #else typedef struct GVMCPU #endif { #if defined(VBOX_BUGREF_9217) && !defined(__cplusplus) VMCPU s; #endif /** VCPU id (0 - (pVM->cCpus - 1). */ #ifdef VBOX_BUGREF_9217 VMCPUID idCpuSafe; #else VMCPUID idCpu; #endif /** 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; #ifndef VBOX_BUGREF_9217 /** Pointer to the corresponding cross context CPU structure. */ PVMCPU pVCpu; /** Pointer to the corresponding cross context VM structure. */ PVM pVM; #endif /** Padding so gvmm starts on a 64 byte boundrary. */ #ifdef VBOX_BUGREF_9217 uint8_t abPadding[HC_ARCH_BITS == 32 ? 48 : 40]; #else uint8_t abPadding[HC_ARCH_BITS == 32 ? 4*4 + 24 : 24]; #endif /** The GVMM per vcpu data. */ union { #ifdef VMM_INCLUDED_SRC_VMMR0_GVMMR0Internal_h struct GVMMPERVCPU s; #endif uint8_t padding[64]; } gvmm; #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]; } nem; #endif #ifdef VBOX_BUGREF_9217 /** Padding the structure size to page boundrary. */ # ifdef VBOX_WITH_NEM_R0 uint8_t abPadding2[3904]; # else uint8_t abPadding2[3840]; # endif #endif } GVMCPU; #ifdef VBOX_BUGREF_9217 AssertCompileMemberAlignment(GVMCPU, gvmm, 64); # ifdef VBOX_WITH_NEM_R0 AssertCompileMemberAlignment(GVMCPU, nem, 64); # endif AssertCompileSizeAlignment(GVMCPU, 4096); #else AssertCompileMemberOffset(GVMCPU, gvmm, 64); # ifdef VBOX_WITH_NEM_R0 AssertCompileMemberOffset(GVMCPU, nem, 64 + 64); AssertCompileSize( GVMCPU, 64 + 64 + 64); # else AssertCompileSize( GVMCPU, 64 + 64); # endif #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. */ #ifdef VBOX_BUGREF_9217 typedef struct GVM : public VM #else typedef struct GVM #endif { /** Magic / eye-catcher (GVM_MAGIC). */ uint32_t u32Magic; /** The global VM handle for this VM. */ #ifdef VBOX_BUGREF_9217 uint32_t hSelfSafe; #else uint32_t hSelf; #endif #ifndef VBOX_BUGREF_9217 /** The ring-0 mapping of the VM structure. */ PVM pVM; #endif /** The ring-3 mapping of the VM structure. */ PVMR3 pVMR3; /** The support driver session the VM is associated with. */ #ifdef VBOX_BUGREF_9217 PSUPDRVSESSION pSessionSafe; #else PSUPDRVSESSION pSession; #endif /** Number of Virtual CPUs, i.e. how many entries there are in aCpus. * Same same as VM::cCpus. */ #ifdef VBOX_BUGREF_9217 uint32_t cCpusSafe; #else uint32_t cCpus; #endif /** Padding so gvmm starts on a 64 byte boundrary. */ #ifdef VBOX_BUGREF_9217 uint8_t abPadding[HC_ARCH_BITS == 32 ? 12 + 28 + 4 : 28 + 8]; #else uint8_t abPadding[HC_ARCH_BITS == 32 ? 12 + 28 : 28]; #endif /** 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[512]; } gmm; #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]; } nem; #endif /** The RAWPCIVM per vm data. */ union { #ifdef VBOX_INCLUDED_rawpci_h struct RAWPCIPERVM s; #endif uint8_t padding[64]; } rawpci; #ifdef VBOX_BUGREF_9217 /** Padding so aCpus starts on a page boundrary. */ # ifdef VBOX_WITH_NEM_R0 uint8_t abPadding2[4096 - 64 - 256 - 512 - 256 - 64]; # else uint8_t abPadding2[4096 - 64 - 256 - 512 - 64]; # endif #endif /** GVMCPU array for the configured number of virtual CPUs. */ GVMCPU aCpus[1]; } GVM; #ifdef VBOX_BUGREF_9217 AssertCompileMemberAlignment(GVM, gvmm, 64); AssertCompileMemberAlignment(GVM, gmm, 64); # ifdef VBOX_WITH_NEM_R0 AssertCompileMemberAlignment(GVM, nem, 64); # endif AssertCompileMemberAlignment(GVM, rawpci, 64); AssertCompileMemberAlignment(GVM, aCpus, 4096); AssertCompileSizeAlignment(GVM, 4096); #else AssertCompileMemberOffset(GVM, gvmm, 64); AssertCompileMemberOffset(GVM, gmm, 64 + 256); # ifdef VBOX_WITH_NEM_R0 AssertCompileMemberOffset(GVM, nem, 64 + 256 + 512); AssertCompileMemberOffset(GVM, rawpci, 64 + 256 + 512 + 256); AssertCompileMemberOffset(GVM, aCpus, 64 + 256 + 512 + 256 + 64); # else AssertCompileMemberOffset(GVM, rawpci, 64 + 256 + 512); AssertCompileMemberOffset(GVM, aCpus, 64 + 256 + 512 + 64); # endif #endif /** The GVM::u32Magic value (Wayne Shorter). */ #define GVM_MAGIC 0x19330825 /** @} */ #endif /* !VBOX_INCLUDED_vmm_gvm_h */