/** @file * VMM - The Virtual Machine Monitor. */ /* * Copyright (C) 2006 InnoTek Systemberatung GmbH * * 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 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. * * If you received this file as part of a commercial VirtualBox * distribution, then only the terms of your commercial VirtualBox * license agreement apply instead of the previous paragraph. */ #ifndef __VBox_vmm_h__ #define __VBox_vmm_h__ #include #include #include #include __BEGIN_DECLS /** @defgroup grp_vmm The Virtual Machine Monitor API * @{ */ /** * World switcher identifiers. */ typedef enum VMMSWITCHER { /** The usual invalid 0. */ VMMSWITCHER_INVALID = 0, /** Switcher for 32-bit host to 32-bit shadow paging. */ VMMSWITCHER_32_TO_32, /** Switcher for 32-bit host paging to PAE shadow paging. */ VMMSWITCHER_32_TO_PAE, /** Switcher for 32-bit host paging to AMD64 shadow paging. */ VMMSWITCHER_32_TO_AMD64, /** Switcher for PAE host to 32-bit shadow paging. */ VMMSWITCHER_PAE_TO_32, /** Switcher for PAE host to PAE shadow paging. */ VMMSWITCHER_PAE_TO_PAE, /** Switcher for PAE host paging to AMD64 shadow paging. */ VMMSWITCHER_PAE_TO_AMD64, /** Switcher for AMD64 host paging to PAE shadow paging. */ VMMSWITCHER_AMD64_TO_PAE, /** Switcher for AMD64 host paging to AMD64 shadow paging. */ VMMSWITCHER_AMD64_TO_AMD64, /** Used to make a count for array declarations and suchlike. */ VMMSWITCHER_MAX, /** The usual 32-bit paranoia. */ VMMSWITCHER_32BIT_HACK = 0x7fffffff } VMMSWITCHER; /** * VMMGCCallHost operations. */ typedef enum VMMCALLHOST { /** Invalid operation. */ VMMCALLHOST_INVALID = 0, /** Acquire the PDM lock. */ VMMCALLHOST_PDM_LOCK, /** Call PDMR3QueueFlushWorker. */ VMMCALLHOST_PDM_QUEUE_FLUSH, /** Acquire the PGM lock. */ VMMCALLHOST_PGM_LOCK, /** Grow the PGM shadow page pool. */ VMMCALLHOST_PGM_POOL_GROW, /** Dynamically allocate physical guest RAM. */ VMMCALLHOST_PGM_RAM_GROW_RANGE, /** Replay the REM handler notifications. */ VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS, /** Flush the GC/R0 logger. */ VMMCALLHOST_VMM_LOGGER_FLUSH, /** Set the VM error message. */ VMMCALLHOST_VM_SET_ERROR, /** The usual 32-bit hack. */ VMMCALLHOST_32BIT_HACK = 0x7fffffff } VMMCALLHOST; /** * Gets the bottom of the hypervisor stack - GC Ptr. * I.e. the returned address is not actually writable. * * @returns bottom of the stack. * @param pVM The VM handle. */ RTGCPTR VMMGetStackGC(PVM pVM); /** * Gets the bottom of the hypervisor stack - HC Ptr. * I.e. the returned address is not actually writable. * * @returns bottom of the stack. * @param pVM The VM handle. */ RTHCPTR VMMGetHCStack(PVM pVM); #ifdef IN_RING3 /** @defgroup grp_vmm_r3 The VMM Host Context Ring 3 API * @ingroup grp_vmm * @{ */ /** * Initializes the VMM. * * @returns VBox status code. * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3Init(PVM pVM); /** * Ring-3 init finalizing. * * @returns VBox status code. * @param pVM The VM handle. */ VMMR3DECL(int) VMMR3InitFinalize(PVM pVM); /** * Initializes the R0 VMM. * * @returns VBox status code. * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3InitR0(PVM pVM); /** * Initializes the GC VMM. * * @returns VBox status code. * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3InitGC(PVM pVM); /** * Destroy the VMM bits. * * @returns VINF_SUCCESS. * @param pVM The VM handle. */ VMMR3DECL(int) VMMR3Term(PVM pVM); /** * Applies relocations to data and code managed by this * component. This function will be called at init and * whenever the VMM need to relocate it self inside the GC. * * The VMM will need to apply relocations to the core code. * * @param pVM The VM handle. * @param offDelta The relocation delta. */ VMMR3DECL(void) VMMR3Relocate(PVM pVM, RTGCINTPTR offDelta); /** * Updates the settings for the GC (and R0?) loggers. * * @returns VBox status code. * @param pVM The VM handle. */ VMMR3DECL(int) VMMR3UpdateLoggers(PVM pVM); /** * Gets the pointer to g_szRTAssertMsg1 in GC. * @returns Pointer to VMMGC::g_szRTAssertMsg1. * Returns NULL if not present. * @param pVM The VM handle. */ VMMR3DECL(const char *) VMMR3GetGCAssertMsg1(PVM pVM); /** * Gets the pointer to g_szRTAssertMsg2 in GC. * @returns Pointer to VMMGC::g_szRTAssertMsg2. * Returns NULL if not present. * @param pVM The VM handle. */ VMMR3DECL(const char *) VMMR3GetGCAssertMsg2(PVM pVM); /** * Resolve a builtin GC symbol. * Called by PDM when loading or relocating GC modules. * * @returns VBox status. * @param pVM VM Handle. * @param pszSymbol Symbol to resolv * @param pGCPtrValue Where to store the symbol value. * @remark This has to work before VMMR3Relocate() is called. */ VMMR3DECL(int) VMMR3GetImportGC(PVM pVM, const char *pszSymbol, PRTGCPTR pGCPtrValue); /** * Selects the switcher to be used for switching to GC. * * @returns VBox status code. * @param pVM VM handle. * @param enmSwitcher The new switcher. * @remark This function may be called before the VMM is initialized. */ VMMR3DECL(int) VMMR3SelectSwitcher(PVM pVM, VMMSWITCHER enmSwitcher); /** * Disable the switcher logic permanently. * * @returns VBox status code. * @param pVM VM handle. */ VMMR3DECL(int) VMMR3DisableSwitcher(PVM pVM); /** * Executes guest code. * * @param pVM VM handle. */ VMMR3DECL(int) VMMR3RawRunGC(PVM pVM); /** * Executes guest code (Intel VMX and AMD SVM). * * @param pVM VM handle. */ VMMR3DECL(int) VMMR3HwAccRunGC(PVM pVM); /** * Calls GC a function. * * @param pVM The VM handle. * @param GCPtrEntry The GC function address. * @param cArgs The number of arguments in the .... * @param ... Arguments to the function. */ VMMR3DECL(int) VMMR3CallGC(PVM pVM, RTGCPTR GCPtrEntry, unsigned cArgs, ...); /** * Calls GC a function. * * @param pVM The VM handle. * @param GCPtrEntry The GC function address. * @param cArgs The number of arguments in the .... * @param args Arguments to the function. */ VMMR3DECL(int) VMMR3CallGCV(PVM pVM, RTGCPTR GCPtrEntry, unsigned cArgs, va_list args); /** * Resumes executing hypervisor code when interrupted * by a queue flush or a debug event. * * @returns VBox status code. * @param pVM VM handle. */ VMMR3DECL(int) VMMR3ResumeHyper(PVM pVM); /** * Dumps the VM state on a fatal error. * * @param pVM VM Handle. * @param rcErr VBox status code. */ VMMR3DECL(void) VMMR3FatalDump(PVM pVM, int rcErr); /** * Acquire global VM lock * * @returns VBox status code * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3Lock(PVM pVM); /** * Release global VM lock * * @returns VBox status code * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3Unlock(PVM pVM); /** * Return global VM lock owner * * @returns NIL_RTNATIVETHREAD -> no owner, otherwise thread id of owner * @param pVM The VM to operate on. */ VMMR3DECL(RTNATIVETHREAD) VMMR3LockGetOwner(PVM pVM); /** * Checks if the current thread is the owner of the global VM lock. * * @returns true if owner. * @returns false if not owner. * @param pVM The VM to operate on. */ VMMR3DECL(bool) VMMR3LockIsOwner(PVM pVM); /** * Suspends the the CPU yielder. * * @param pVM The VM handle. */ VMMR3DECL(void) VMMR3YieldSuspend(PVM pVM); /** * Stops the the CPU yielder. * * @param pVM The VM handle. */ VMMR3DECL(void) VMMR3YieldStop(PVM pVM); /** * Resumes the CPU yielder when it has been a suspended or stopped. * * @param pVM The VM handle. */ VMMR3DECL(void) VMMR3YieldResume(PVM pVM); /** @} */ #endif /** @defgroup grp_vmm_r0 The VMM Host Context Ring 0 API * @ingroup grp_vmm * @{ */ /** * The VMMR0Entry() codes. */ typedef enum VMMR0OPERATION { /** Run guest context. */ VMMR0_DO_RUN_GC = 0, /** Run guest code using the available hardware acceleration technology. */ VMMR0_HWACC_RUN_GUEST, /** Call VMMR0 Per VM Init. */ VMMR0_DO_VMMR0_INIT, /** Call VMMR0 Per VM Termination. */ VMMR0_DO_VMMR0_TERM, /** Setup the hardware accelerated raw-mode session. */ VMMR0_HWACC_SETUP_VM, /** Calls function in the hypervisor. * The caller must setup the hypervisor context so the call will be performed. * The difference between VMMR0_DO_RUN_GC and this one is the handling of * the return GC code. The return code will not be interpreted by this operation. */ VMMR0_DO_CALL_HYPERVISOR, /** The start of the R0 service operations. */ VMMR0_DO_SRV_START, /** Call INTNETR0Open(). */ VMMR0_DO_INTNET_OPEN, /** Call INTNETR0IfClose(). */ VMMR0_DO_INTNET_IF_CLOSE, /** Call INTNETR0IfGetRing3Buffer(). */ VMMR0_DO_INTNET_IF_GET_RING3_BUFFER, /** Call INTNETR0IfSetPromiscuousMode(). */ VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE, /** Call INTNETR0IfSend(). */ VMMR0_DO_INTNET_IF_SEND, /** Call INTNETR0IfWait(). */ VMMR0_DO_INTNET_IF_WAIT, /** The end of the R0 service operations. */ VMMR0_DO_SRV_END, /** The usual 32-bit type blow up. */ VMMR0_DO_32BIT_HACK = 0x7fffffff } VMMR0OPERATION; /** * The Ring 0 entry point, called by the support library (SUP). * * @returns VBox status code. * @param pVM The VM to operate on. * @param uOperation Which operation to execute (VMMR0OPERATION). * @param pvArg Argument to the operation. */ VMMR0DECL(int) VMMR0Entry(PVM pVM, unsigned /* make me an enum */ uOperation, void *pvArg); /** * Calls the ring-3 host code. * * @returns VBox status code of the ring-3 call. * @param pVM The VM handle. * @param enmOperation The operation. * @param uArg The argument to the operation. */ VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg); /** @} */ #ifdef IN_GC /** @defgroup grp_vmm_gc The VMM Guest Context API * @ingroup grp_vmm * @{ */ /** * The GC entry point. * * @returns VBox status code. * @param pVM The VM to operate on. * @param uOperation Which operation to execute (VMMGCOPERATION). * @param uArg Argument to that operation. */ VMMGCDECL(int) VMMGCEntry(PVM pVM, unsigned uOperation, unsigned uArg); /** * Switches from guest context to host context. * * @param pVM The VM handle. * @param rc The status code. */ VMMGCDECL(void) VMMGCGuestToHost(PVM pVM, int rc); /** * Calls the ring-3 host code. * * @returns VBox status code of the ring-3 call. * @param pVM The VM handle. * @param enmOperation The operation. * @param uArg The argument to the operation. */ VMMGCDECL(int) VMMGCCallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg); /** @} */ #endif /** @} */ __END_DECLS #endif