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Diffstat (limited to 'include/VBox/vmm/gvm.h')
| -rw-r--r-- | include/VBox/vmm/gvm.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/include/VBox/vmm/gvm.h b/include/VBox/vmm/gvm.h new file mode 100644 index 00000000..132d17de --- /dev/null +++ b/include/VBox/vmm/gvm.h @@ -0,0 +1,183 @@ +/* $Id: gvm.h $ */ +/** @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 <VBox/types.h> +#include <iprt/thread.h> +#include <iprt/assertcompile.h> + + +/** @defgroup grp_gvmcpu GVMCPU - The Global VMCPU Data + * @ingroup grp_vmm + * @{ + */ + +typedef struct GVMCPU +{ + /** 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. */ + PGVM pGVM; + /** Pointer to the corresponding cross context CPU structure. */ + PVMCPU pVCpu; + /** Pointer to the corresponding cross context VM structure. */ + PVM pVM; + + /** Padding so gvmm starts on a 64 byte boundrary. */ + uint8_t abPadding[HC_ARCH_BITS == 32 ? 4*4 + 24 : 24]; + + /** 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 + { +# ifdef VMM_INCLUDED_SRC_include_NEMInternal_h + struct NEMR0PERVCPU s; +# endif + uint8_t padding[64]; + } nem; +#endif +} GVMCPU; +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 + +/** @} */ + +/** @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. + */ +typedef struct GVM +{ + /** Magic / eye-catcher (GVM_MAGIC). */ + uint32_t u32Magic; + /** The global VM handle for this VM. */ + uint32_t hSelf; + /** The ring-0 mapping of the VM structure. */ + PVM pVM; + /** 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[512]; + } gmm; + +#ifdef VBOX_WITH_NEM_R0 + /** The NEM per vcpu data. */ + union + { +# ifdef VMM_INCLUDED_SRC_include_NEMInternal_h + 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; + + /** GVMCPU array for the configured number of virtual CPUs. */ + GVMCPU aCpus[1]; +} GVM; +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 + +/** The GVM::u32Magic value (Wayne Shorter). */ +#define GVM_MAGIC 0x19330825 + +/** @} */ + +#endif /* !VBOX_INCLUDED_vmm_gvm_h */ + |