/** @file * VM - The Virtual Machine, data. */ /* * Copyright (C) 2006-2013 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_vmm_vm_h #define ___VBox_vmm_vm_h #ifndef VBOX_FOR_DTRACE_LIB # include # include # include # include # include # include #else # pragma D depends_on library vbox-types.d # pragma D depends_on library CPUMInternal.d # define ___CPUMInternal_h #endif /** @defgroup grp_vm The Virtual Machine * @{ */ /** * The state of a Virtual CPU. * * The basic state indicated here is whether the CPU has been started or not. In * addition, there are sub-states when started for assisting scheduling (GVMM * mostly). * * The transition out of the STOPPED state is done by a vmR3PowerOn. * The transition back to the STOPPED state is done by vmR3PowerOff. * * (Alternatively we could let vmR3PowerOn start CPU 0 only and let the SPIP * handling switch on the other CPUs. Then vmR3Reset would stop all but CPU 0.) */ typedef enum VMCPUSTATE { /** The customary invalid zero. */ VMCPUSTATE_INVALID = 0, /** Virtual CPU has not yet been started. */ VMCPUSTATE_STOPPED, /** CPU started. */ VMCPUSTATE_STARTED, /** CPU started in HM context. */ VMCPUSTATE_STARTED_HM, /** Executing guest code and can be poked (RC or STI bits of HM). */ VMCPUSTATE_STARTED_EXEC, /** Executing guest code in the recompiler. */ VMCPUSTATE_STARTED_EXEC_REM, /** Halted. */ VMCPUSTATE_STARTED_HALTED, /** The end of valid virtual CPU states. */ VMCPUSTATE_END, /** Ensure 32-bit type. */ VMCPUSTATE_32BIT_HACK = 0x7fffffff } VMCPUSTATE; /** * The cross context virtual CPU structure. * * Run 'kmk run-struct-tests' (from src/VBox/VMM if you like) after updating! */ typedef struct VMCPU { /** Per CPU forced action. * See the VMCPU_FF_* \#defines. Updated atomically. */ uint32_t volatile fLocalForcedActions; /* 0 */ /** The CPU state. */ VMCPUSTATE volatile enmState; /* 4 */ /** Pointer to the ring-3 UVMCPU structure. */ PUVMCPU pUVCpu; /* 8 */ /** Ring-3 Host Context VM Pointer. */ PVMR3 pVMR3; /* 16 / 12 */ /** Ring-0 Host Context VM Pointer. */ PVMR0 pVMR0; /* 24 / 16 */ /** Raw-mode Context VM Pointer. */ PVMRC pVMRC; /* 32 / 20 */ /** The CPU ID. * This is the index into the VM::aCpu array. */ VMCPUID idCpu; /* 36 / 24 */ /** The native thread handle. */ RTNATIVETHREAD hNativeThread; /* 40 / 28 */ /** The native R0 thread handle. (different from the R3 handle!) */ RTNATIVETHREAD hNativeThreadR0; /* 48 / 32 */ /** Which host CPU ID is this EMT running on. * Only valid when in RC or HMR0 with scheduling disabled. */ RTCPUID volatile idHostCpu; /* 56 / 36 */ /** Trace groups enable flags. */ uint32_t fTraceGroups; /* 60 / 40 */ /** Align the structures below bit on a 64-byte boundary and make sure it starts * at the same offset in both 64-bit and 32-bit builds. * * @remarks The alignments of the members that are larger than 48 bytes should be * 64-byte for cache line reasons. structs containing small amounts of * data could be lumped together at the end with a < 64 byte padding * following it (to grow into and align the struct size). * */ uint8_t abAlignment1[HC_ARCH_BITS == 64 ? 60 : 16+64]; /** State data for use by ad hoc profiling. */ uint32_t uAdHoc; /** Profiling samples for use by ad hoc profiling. */ STAMPROFILEADV aStatAdHoc[8]; /* size: 40*8 = 320 */ /** CPUM part. */ union { #ifdef ___CPUMInternal_h struct CPUMCPU s; #endif uint8_t padding[3584]; /* multiple of 64 */ } cpum; /** HM part. */ union { #ifdef ___HMInternal_h struct HMCPU s; #endif uint8_t padding[5632]; /* multiple of 64 */ } hm; /** EM part. */ union { #ifdef ___EMInternal_h struct EMCPU s; #endif uint8_t padding[1472]; /* multiple of 64 */ } em; /** IEM part. */ union { #ifdef ___IEMInternal_h struct IEMCPU s; #endif uint8_t padding[3072]; /* multiple of 64 */ } iem; /** TRPM part. */ union { #ifdef ___TRPMInternal_h struct TRPMCPU s; #endif uint8_t padding[128]; /* multiple of 64 */ } trpm; /** TM part. */ union { #ifdef ___TMInternal_h struct TMCPU s; #endif uint8_t padding[384]; /* multiple of 64 */ } tm; /** VMM part. */ union { #ifdef ___VMMInternal_h struct VMMCPU s; #endif uint8_t padding[704]; /* multiple of 64 */ } vmm; /** PDM part. */ union { #ifdef ___PDMInternal_h struct PDMCPU s; #endif uint8_t padding[256]; /* multiple of 64 */ } pdm; /** IOM part. */ union { #ifdef ___IOMInternal_h struct IOMCPU s; #endif uint8_t padding[512]; /* multiple of 64 */ } iom; /** DBGF part. * @todo Combine this with other tiny structures. */ union { #ifdef ___DBGFInternal_h struct DBGFCPU s; #endif uint8_t padding[64]; /* multiple of 64 */ } dbgf; /** Align the following members on page boundary. */ uint8_t abAlignment2[128]; /** PGM part. */ union { #ifdef ___PGMInternal_h struct PGMCPU s; #endif uint8_t padding[4096]; /* multiple of 4096 */ } pgm; } VMCPU; #ifndef VBOX_FOR_DTRACE_LIB /** @name Operations on VMCPU::enmState * @{ */ /** Gets the VMCPU state. */ #define VMCPU_GET_STATE(pVCpu) ( (pVCpu)->enmState ) /** Sets the VMCPU state. */ #define VMCPU_SET_STATE(pVCpu, enmNewState) \ ASMAtomicWriteU32((uint32_t volatile *)&(pVCpu)->enmState, (enmNewState)) /** Cmpares and sets the VMCPU state. */ #define VMCPU_CMPXCHG_STATE(pVCpu, enmNewState, enmOldState) \ ASMAtomicCmpXchgU32((uint32_t volatile *)&(pVCpu)->enmState, (enmNewState), (enmOldState)) /** Checks the VMCPU state. */ #ifdef VBOX_STRICT # define VMCPU_ASSERT_STATE(pVCpu, enmExpectedState) \ do { \ VMCPUSTATE enmState = VMCPU_GET_STATE(pVCpu); \ AssertMsg(enmState == (enmExpectedState), \ ("enmState=%d enmExpectedState=%d idCpu=%u\n", \ enmState, enmExpectedState, (pVCpu)->idCpu)); \ } while (0) #else # define VMCPU_ASSERT_STATE(pVCpu, enmExpectedState) do { } while (0) #endif /** Tests if the state means that the CPU is started. */ #define VMCPUSTATE_IS_STARTED(enmState) ( (enmState) > VMCPUSTATE_STOPPED ) /** Tests if the state means that the CPU is stopped. */ #define VMCPUSTATE_IS_STOPPED(enmState) ( (enmState) == VMCPUSTATE_STOPPED ) /** @} */ /** The name of the Guest Context VMM Core module. */ #define VMMGC_MAIN_MODULE_NAME "VMMGC.gc" /** The name of the Ring 0 Context VMM Core module. */ #define VMMR0_MAIN_MODULE_NAME "VMMR0.r0" /** * Wrapper macro for avoiding too much \#ifdef VBOX_WITH_RAW_MODE. */ #ifdef VBOX_WITH_RAW_MODE # define VM_WHEN_RAW_MODE(a_WithExpr, a_WithoutExpr) a_WithExpr #else # define VM_WHEN_RAW_MODE(a_WithExpr, a_WithoutExpr) a_WithoutExpr #endif /** VM Forced Action Flags. * * Use the VM_FF_SET() and VM_FF_CLEAR() macros to change the force * action mask of a VM. * * @{ */ /** The virtual sync clock has been stopped, go to TM until it has been * restarted... */ #define VM_FF_TM_VIRTUAL_SYNC RT_BIT_32(2) /** PDM Queues are pending. */ #define VM_FF_PDM_QUEUES RT_BIT_32(VM_FF_PDM_QUEUES_BIT) /** The bit number for VM_FF_PDM_QUEUES. */ #define VM_FF_PDM_QUEUES_BIT 3 /** PDM DMA transfers are pending. */ #define VM_FF_PDM_DMA RT_BIT_32(VM_FF_PDM_DMA_BIT) /** The bit number for VM_FF_PDM_DMA. */ #define VM_FF_PDM_DMA_BIT 4 /** This action forces the VM to call DBGF so DBGF can service debugger * requests in the emulation thread. * This action flag stays asserted till DBGF clears it.*/ #define VM_FF_DBGF RT_BIT_32(VM_FF_DBGF_BIT) /** The bit number for VM_FF_DBGF. */ #define VM_FF_DBGF_BIT 8 /** This action forces the VM to service pending requests from other * thread or requests which must be executed in another context. */ #define VM_FF_REQUEST RT_BIT_32(9) /** Check for VM state changes and take appropriate action. */ #define VM_FF_CHECK_VM_STATE RT_BIT_32(VM_FF_CHECK_VM_STATE_BIT) /** The bit number for VM_FF_CHECK_VM_STATE. */ #define VM_FF_CHECK_VM_STATE_BIT 10 /** Reset the VM. (postponed) */ #define VM_FF_RESET RT_BIT_32(VM_FF_RESET_BIT) /** The bit number for VM_FF_RESET. */ #define VM_FF_RESET_BIT 11 /** EMT rendezvous in VMM. */ #define VM_FF_EMT_RENDEZVOUS RT_BIT_32(VM_FF_EMT_RENDEZVOUS_BIT) /** The bit number for VM_FF_EMT_RENDEZVOUS. */ #define VM_FF_EMT_RENDEZVOUS_BIT 12 /** PGM needs to allocate handy pages. */ #define VM_FF_PGM_NEED_HANDY_PAGES RT_BIT_32(18) /** PGM is out of memory. * Abandon all loops and code paths which can be resumed and get up to the EM * loops. */ #define VM_FF_PGM_NO_MEMORY RT_BIT_32(19) /** PGM is about to perform a lightweight pool flush * Guest SMP: all EMT threads should return to ring 3 */ #define VM_FF_PGM_POOL_FLUSH_PENDING RT_BIT_32(20) /** REM needs to be informed about handler changes. */ #define VM_FF_REM_HANDLER_NOTIFY RT_BIT_32(VM_FF_REM_HANDLER_NOTIFY_BIT) /** The bit number for VM_FF_REM_HANDLER_NOTIFY. */ #define VM_FF_REM_HANDLER_NOTIFY_BIT 29 /** Suspend the VM - debug only. */ #define VM_FF_DEBUG_SUSPEND RT_BIT_32(31) /** This action forces the VM to check any pending interrups on the APIC. */ #define VMCPU_FF_INTERRUPT_APIC RT_BIT_32(0) /** This action forces the VM to check any pending interrups on the PIC. */ #define VMCPU_FF_INTERRUPT_PIC RT_BIT_32(1) /** This action forces the VM to schedule and run pending timer (TM). * @remarks Don't move - PATM compatibility. */ #define VMCPU_FF_TIMER RT_BIT_32(2) /** This action forces the VM to check any pending NMIs. */ #define VMCPU_FF_INTERRUPT_NMI_BIT 3 #define VMCPU_FF_INTERRUPT_NMI RT_BIT_32(VMCPU_FF_INTERRUPT_NMI_BIT) /** This action forces the VM to check any pending SMIs. */ #define VMCPU_FF_INTERRUPT_SMI_BIT 4 #define VMCPU_FF_INTERRUPT_SMI RT_BIT_32(VMCPU_FF_INTERRUPT_SMI_BIT) /** PDM critical section unlocking is pending, process promptly upon return to R3. */ #define VMCPU_FF_PDM_CRITSECT RT_BIT_32(5) /** This action forces the VM to service pending requests from other * thread or requests which must be executed in another context. */ #define VMCPU_FF_REQUEST RT_BIT_32(9) /** This action forces the VM to service any pending updates to CR3 (used only * by HM). */ #define VMCPU_FF_HM_UPDATE_CR3 RT_BIT_32(12) /** This action forces the VM to service any pending updates to PAE PDPEs (used * only by HM). */ #define VMCPU_FF_HM_UPDATE_PAE_PDPES RT_BIT_32(13) /** This action forces the VM to resync the page tables before going * back to execute guest code. (GLOBAL FLUSH) */ #define VMCPU_FF_PGM_SYNC_CR3 RT_BIT_32(16) /** Same as VM_FF_PGM_SYNC_CR3 except that global pages can be skipped. * (NON-GLOBAL FLUSH) */ #define VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL RT_BIT_32(17) /** Check for pending TLB shootdown actions. * Consumer: HM * @todo rename to VMCPU_FF_HM_TLB_SHOOTDOWN */ #define VMCPU_FF_TLB_SHOOTDOWN RT_BIT_32(18) /** Check for pending TLB flush action. * Consumer: HM * @todo rename to VMCPU_FF_HM_TLB_FLUSH */ #define VMCPU_FF_TLB_FLUSH RT_BIT_32(VMCPU_FF_TLB_FLUSH_BIT) /** The bit number for VMCPU_FF_TLB_FLUSH. */ #define VMCPU_FF_TLB_FLUSH_BIT 19 #ifdef VBOX_WITH_RAW_MODE /** Check the interrupt and trap gates */ # define VMCPU_FF_TRPM_SYNC_IDT RT_BIT_32(20) /** Check Guest's TSS ring 0 stack */ # define VMCPU_FF_SELM_SYNC_TSS RT_BIT_32(21) /** Check Guest's GDT table */ # define VMCPU_FF_SELM_SYNC_GDT RT_BIT_32(22) /** Check Guest's LDT table */ # define VMCPU_FF_SELM_SYNC_LDT RT_BIT_32(23) #endif /* VBOX_WITH_RAW_MODE */ /** Inhibit interrupts pending. See EMGetInhibitInterruptsPC(). */ #define VMCPU_FF_INHIBIT_INTERRUPTS RT_BIT_32(24) #ifdef VBOX_WITH_RAW_MODE /** CSAM needs to scan the page that's being executed */ # define VMCPU_FF_CSAM_SCAN_PAGE RT_BIT_32(26) /** CSAM needs to do some homework. */ # define VMCPU_FF_CSAM_PENDING_ACTION RT_BIT_32(27) #endif /* VBOX_WITH_RAW_MODE */ /** Force return to Ring-3. */ #define VMCPU_FF_TO_R3 RT_BIT_32(28) /** Externally VM forced actions. Used to quit the idle/wait loop. */ #define VM_FF_EXTERNAL_SUSPENDED_MASK (VM_FF_CHECK_VM_STATE | VM_FF_DBGF | VM_FF_REQUEST | VM_FF_EMT_RENDEZVOUS) /** Externally VMCPU forced actions. Used to quit the idle/wait loop. */ #define VMCPU_FF_EXTERNAL_SUSPENDED_MASK (VMCPU_FF_REQUEST) /** Externally forced VM actions. Used to quit the idle/wait loop. */ #define VM_FF_EXTERNAL_HALTED_MASK ( VM_FF_CHECK_VM_STATE | VM_FF_DBGF | VM_FF_REQUEST \ | VM_FF_PDM_QUEUES | VM_FF_PDM_DMA | VM_FF_EMT_RENDEZVOUS) /** Externally forced VMCPU actions. Used to quit the idle/wait loop. */ #define VMCPU_FF_EXTERNAL_HALTED_MASK ( VMCPU_FF_INTERRUPT_APIC | VMCPU_FF_INTERRUPT_PIC | VMCPU_FF_REQUEST \ | VMCPU_FF_TIMER) /** High priority VM pre-execution actions. */ #define VM_FF_HIGH_PRIORITY_PRE_MASK ( VM_FF_CHECK_VM_STATE | VM_FF_DBGF | VM_FF_TM_VIRTUAL_SYNC \ | VM_FF_DEBUG_SUSPEND | VM_FF_PGM_NEED_HANDY_PAGES | VM_FF_PGM_NO_MEMORY \ | VM_FF_EMT_RENDEZVOUS) /** High priority VMCPU pre-execution actions. */ #define VMCPU_FF_HIGH_PRIORITY_PRE_MASK ( VMCPU_FF_TIMER | VMCPU_FF_INTERRUPT_APIC | VMCPU_FF_INTERRUPT_PIC \ | VMCPU_FF_PGM_SYNC_CR3 | VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL \ | VMCPU_FF_INHIBIT_INTERRUPTS \ | VM_WHEN_RAW_MODE( VMCPU_FF_SELM_SYNC_TSS | VMCPU_FF_TRPM_SYNC_IDT \ | VMCPU_FF_SELM_SYNC_GDT | VMCPU_FF_SELM_SYNC_LDT, 0 ) ) /** High priority VM pre raw-mode execution mask. */ #define VM_FF_HIGH_PRIORITY_PRE_RAW_MASK (VM_FF_PGM_NEED_HANDY_PAGES | VM_FF_PGM_NO_MEMORY) /** High priority VMCPU pre raw-mode execution mask. */ #define VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK ( VMCPU_FF_PGM_SYNC_CR3 | VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL \ | VMCPU_FF_INHIBIT_INTERRUPTS \ | VM_WHEN_RAW_MODE( VMCPU_FF_SELM_SYNC_TSS | VMCPU_FF_TRPM_SYNC_IDT \ | VMCPU_FF_SELM_SYNC_GDT | VMCPU_FF_SELM_SYNC_LDT, 0) ) /** High priority post-execution actions. */ #define VM_FF_HIGH_PRIORITY_POST_MASK (VM_FF_PGM_NO_MEMORY) /** High priority post-execution actions. */ #define VMCPU_FF_HIGH_PRIORITY_POST_MASK ( VMCPU_FF_PDM_CRITSECT | VM_WHEN_RAW_MODE(VMCPU_FF_CSAM_PENDING_ACTION, 0) \ | VMCPU_FF_HM_UPDATE_CR3 | VMCPU_FF_HM_UPDATE_PAE_PDPES) /** Normal priority VM post-execution actions. */ #define VM_FF_NORMAL_PRIORITY_POST_MASK ( VM_FF_CHECK_VM_STATE | VM_FF_DBGF | VM_FF_RESET \ | VM_FF_PGM_NO_MEMORY | VM_FF_EMT_RENDEZVOUS) /** Normal priority VMCPU post-execution actions. */ #define VMCPU_FF_NORMAL_PRIORITY_POST_MASK VM_WHEN_RAW_MODE(VMCPU_FF_CSAM_SCAN_PAGE, 0) /** Normal priority VM actions. */ #define VM_FF_NORMAL_PRIORITY_MASK ( VM_FF_REQUEST | VM_FF_PDM_QUEUES | VM_FF_PDM_DMA | VM_FF_REM_HANDLER_NOTIFY \ | VM_FF_EMT_RENDEZVOUS) /** Normal priority VMCPU actions. */ #define VMCPU_FF_NORMAL_PRIORITY_MASK (VMCPU_FF_REQUEST) /** Flags to clear before resuming guest execution. */ #define VMCPU_FF_RESUME_GUEST_MASK (VMCPU_FF_TO_R3) /** VM Flags that cause the HM loops to go back to ring-3. */ #define VM_FF_HM_TO_R3_MASK ( VM_FF_TM_VIRTUAL_SYNC | VM_FF_PGM_NEED_HANDY_PAGES | VM_FF_PGM_NO_MEMORY \ | VM_FF_PDM_QUEUES | VM_FF_EMT_RENDEZVOUS) /** VMCPU Flags that cause the HM loops to go back to ring-3. */ #define VMCPU_FF_HM_TO_R3_MASK (VMCPU_FF_TO_R3 | VMCPU_FF_TIMER | VMCPU_FF_PDM_CRITSECT) /** High priority ring-0 VM pre HM-mode execution mask. */ #define VM_FF_HP_R0_PRE_HM_MASK (VM_FF_HM_TO_R3_MASK | VM_FF_REQUEST | VM_FF_PGM_POOL_FLUSH_PENDING | VM_FF_PDM_DMA) /** High priority ring-0 VMCPU pre HM-mode execution mask. */ #define VMCPU_FF_HP_R0_PRE_HM_MASK ( VMCPU_FF_HM_TO_R3_MASK | VMCPU_FF_PGM_SYNC_CR3 \ | VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL | VMCPU_FF_REQUEST) /** High priority ring-0 VM pre HM-mode execution mask, single stepping. */ #define VM_FF_HP_R0_PRE_HM_STEP_MASK (VM_FF_HP_R0_PRE_HM_MASK & ~( VM_FF_TM_VIRTUAL_SYNC | VM_FF_PDM_QUEUES \ | VM_FF_EMT_RENDEZVOUS | VM_FF_REQUEST \ | VM_FF_PDM_DMA) ) /** High priority ring-0 VMCPU pre HM-mode execution mask, single stepping. */ #define VMCPU_FF_HP_R0_PRE_HM_STEP_MASK (VMCPU_FF_HP_R0_PRE_HM_MASK & ~( VMCPU_FF_TO_R3 | VMCPU_FF_TIMER \ | VMCPU_FF_PDM_CRITSECT | VMCPU_FF_REQUEST) ) /** All the forced VM flags. */ #define VM_FF_ALL_MASK (~0U) /** All the forced VMCPU flags. */ #define VMCPU_FF_ALL_MASK (~0U) /** All the forced VM flags except those related to raw-mode and hardware * assisted execution. */ #define VM_FF_ALL_REM_MASK (~(VM_FF_HIGH_PRIORITY_PRE_RAW_MASK) | VM_FF_PGM_NO_MEMORY) /** All the forced VMCPU flags except those related to raw-mode and hardware * assisted execution. */ #define VMCPU_FF_ALL_REM_MASK (~( VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK | VMCPU_FF_PDM_CRITSECT \ | VMCPU_FF_TLB_FLUSH | VMCPU_FF_TLB_SHOOTDOWN \ | VM_WHEN_RAW_MODE(VMCPU_FF_CSAM_PENDING_ACTION, 0) )) /** @} */ /** @def VM_FF_SET * Sets a force action flag. * * @param pVM Pointer to the VM. * @param fFlag The flag to set. */ #if 1 # define VM_FF_SET(pVM, fFlag) ASMAtomicOrU32(&(pVM)->fGlobalForcedActions, (fFlag)) #else # define VM_FF_SET(pVM, fFlag) \ do { ASMAtomicOrU32(&(pVM)->fGlobalForcedActions, (fFlag)); \ RTLogPrintf("VM_FF_SET : %08x %s - %s(%d) %s\n", (pVM)->fGlobalForcedActions, #fFlag, __FILE__, __LINE__, __FUNCTION__); \ } while (0) #endif /** @def VMCPU_FF_SET * Sets a force action flag for the given VCPU. * * @param pVCpu Pointer to the VMCPU. * @param fFlag The flag to set. */ #define VMCPU_FF_SET(pVCpu, fFlag) ASMAtomicOrU32(&(pVCpu)->fLocalForcedActions, (fFlag)) /** @def VM_FF_CLEAR * Clears a force action flag. * * @param pVM Pointer to the VM. * @param fFlag The flag to clear. */ #if 1 # define VM_FF_CLEAR(pVM, fFlag) ASMAtomicAndU32(&(pVM)->fGlobalForcedActions, ~(fFlag)) #else # define VM_FF_CLEAR(pVM, fFlag) \ do { ASMAtomicAndU32(&(pVM)->fGlobalForcedActions, ~(fFlag)); \ RTLogPrintf("VM_FF_CLEAR: %08x %s - %s(%d) %s\n", (pVM)->fGlobalForcedActions, #fFlag, __FILE__, __LINE__, __FUNCTION__); \ } while (0) #endif /** @def VMCPU_FF_CLEAR * Clears a force action flag for the given VCPU. * * @param pVCpu Pointer to the VMCPU. * @param fFlag The flag to clear. */ #define VMCPU_FF_CLEAR(pVCpu, fFlag) ASMAtomicAndU32(&(pVCpu)->fLocalForcedActions, ~(fFlag)) /** @def VM_FF_IS_SET * Checks if a force action flag is set. * * @param pVM Pointer to the VM. * @param fFlag The flag to check. */ #define VM_FF_IS_SET(pVM, fFlag) (((pVM)->fGlobalForcedActions & (fFlag)) == (fFlag)) /** @def VMCPU_FF_IS_SET * Checks if a force action flag is set for the given VCPU. * * @param pVCpu Pointer to the VMCPU. * @param fFlag The flag to check. */ #define VMCPU_FF_IS_SET(pVCpu, fFlag) (((pVCpu)->fLocalForcedActions & (fFlag)) == (fFlag)) /** @def VM_FF_IS_PENDING * Checks if one or more force action in the specified set is pending. * * @param pVM Pointer to the VM. * @param fFlags The flags to check for. */ #define VM_FF_IS_PENDING(pVM, fFlags) RT_BOOL((pVM)->fGlobalForcedActions & (fFlags)) /** @def VM_FF_TESTANDCLEAR * Checks if one (!) force action in the specified set is pending and clears it atomically * * @returns true if the bit was set. * @returns false if the bit was clear. * @param pVM Pointer to the VM. * @param iBit Bit position to check and clear */ #define VM_FF_TEST_AND_CLEAR(pVM, iBit) (ASMAtomicBitTestAndClear(&(pVM)->fGlobalForcedActions, iBit##_BIT)) /** @def VMCPU_FF_TESTANDCLEAR * Checks if one (!) force action in the specified set is pending and clears it atomically * * @returns true if the bit was set. * @returns false if the bit was clear. * @param pVCpu Pointer to the VMCPU. * @param iBit Bit position to check and clear */ #define VMCPU_FF_TEST_AND_CLEAR(pVCpu, iBit) (ASMAtomicBitTestAndClear(&(pVCpu)->fLocalForcedActions, iBit##_BIT)) /** @def VMCPU_FF_IS_PENDING * Checks if one or more force action in the specified set is pending for the given VCPU. * * @param pVCpu Pointer to the VMCPU. * @param fFlags The flags to check for. */ #define VMCPU_FF_IS_PENDING(pVCpu, fFlags) RT_BOOL((pVCpu)->fLocalForcedActions & (fFlags)) /** @def VM_FF_IS_PENDING_EXCEPT * Checks if one or more force action in the specified set is pending while one * or more other ones are not. * * @param pVM Pointer to the VM. * @param fFlags The flags to check for. * @param fExcpt The flags that should not be set. */ #define VM_FF_IS_PENDING_EXCEPT(pVM, fFlags, fExcpt) ( ((pVM)->fGlobalForcedActions & (fFlags)) && !((pVM)->fGlobalForcedActions & (fExcpt)) ) /** @def VMCPU_FF_IS_PENDING_EXCEPT * Checks if one or more force action in the specified set is pending for the given * VCPU while one or more other ones are not. * * @param pVCpu Pointer to the VMCPU. * @param fFlags The flags to check for. * @param fExcpt The flags that should not be set. */ #define VMCPU_FF_IS_PENDING_EXCEPT(pVCpu, fFlags, fExcpt) ( ((pVCpu)->fLocalForcedActions & (fFlags)) && !((pVCpu)->fLocalForcedActions & (fExcpt)) ) /** @def VM_IS_EMT * Checks if the current thread is the emulation thread (EMT). * * @remark The ring-0 variation will need attention if we expand the ring-0 * code to let threads other than EMT mess around with the VM. */ #ifdef IN_RC # define VM_IS_EMT(pVM) true #else # define VM_IS_EMT(pVM) (VMMGetCpu(pVM) != NULL) #endif /** @def VMCPU_IS_EMT * Checks if the current thread is the emulation thread (EMT) for the specified * virtual CPU. */ #ifdef IN_RC # define VMCPU_IS_EMT(pVCpu) true #else # define VMCPU_IS_EMT(pVCpu) ((pVCpu) && ((pVCpu) == VMMGetCpu((pVCpu)->CTX_SUFF(pVM)))) #endif /** @def VM_ASSERT_EMT * Asserts that the current thread IS the emulation thread (EMT). */ #ifdef IN_RC # define VM_ASSERT_EMT(pVM) Assert(VM_IS_EMT(pVM)) #elif defined(IN_RING0) # define VM_ASSERT_EMT(pVM) Assert(VM_IS_EMT(pVM)) #else # define VM_ASSERT_EMT(pVM) \ AssertMsg(VM_IS_EMT(pVM), \ ("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd\n", RTThreadNativeSelf(), VMR3GetVMCPUNativeThread(pVM))) #endif /** @def VMCPU_ASSERT_EMT * Asserts that the current thread IS the emulation thread (EMT) of the * specified virtual CPU. */ #ifdef IN_RC # define VMCPU_ASSERT_EMT(pVCpu) Assert(VMCPU_IS_EMT(pVCpu)) #elif defined(IN_RING0) # define VMCPU_ASSERT_EMT(pVCpu) AssertMsg(VMCPU_IS_EMT(pVCpu), \ ("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%u\n", \ RTThreadNativeSelf(), (pVCpu) ? (pVCpu)->hNativeThreadR0 : 0, \ (pVCpu) ? (pVCpu)->idCpu : 0)) #else # define VMCPU_ASSERT_EMT(pVCpu) \ AssertMsg(VMCPU_IS_EMT(pVCpu), \ ("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \ RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu)) #endif /** @def VM_ASSERT_EMT_RETURN * Asserts that the current thread IS the emulation thread (EMT) and returns if it isn't. */ #ifdef IN_RC # define VM_ASSERT_EMT_RETURN(pVM, rc) AssertReturn(VM_IS_EMT(pVM), (rc)) #elif defined(IN_RING0) # define VM_ASSERT_EMT_RETURN(pVM, rc) AssertReturn(VM_IS_EMT(pVM), (rc)) #else # define VM_ASSERT_EMT_RETURN(pVM, rc) \ AssertMsgReturn(VM_IS_EMT(pVM), \ ("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd\n", RTThreadNativeSelf(), VMR3GetVMCPUNativeThread(pVM)), \ (rc)) #endif /** @def VMCPU_ASSERT_EMT_RETURN * Asserts that the current thread IS the emulation thread (EMT) and returns if it isn't. */ #ifdef IN_RC # define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) AssertReturn(VMCPU_IS_EMT(pVCpu), (rc)) #elif defined(IN_RING0) # define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) AssertReturn(VMCPU_IS_EMT(pVCpu), (rc)) #else # define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) \ AssertMsg(VMCPU_IS_EMT(pVCpu), \ ("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \ RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu), \ (rc)) #endif /** @def VMCPU_ASSERT_EMT_OR_GURU * Asserts that the current thread IS the emulation thread (EMT) of the * specified virtual CPU. */ #if defined(IN_RC) || defined(IN_RING0) # define VMCPU_ASSERT_EMT_OR_GURU(pVCpu) Assert( VMCPU_IS_EMT(pVCpu) \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION_LS ) #else # define VMCPU_ASSERT_EMT_OR_GURU(pVCpu) \ AssertMsg( VMCPU_IS_EMT(pVCpu) \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION_LS, \ ("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \ RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu)) #endif /** @def VMCPU_ASSERT_EMT_OR_NOT_RUNNING * Asserts that the current thread IS the emulation thread (EMT) of the * specified virtual CPU when the VM is running. */ #if defined(IN_RC) || defined(IN_RING0) # define VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu) \ Assert( VMCPU_IS_EMT(pVCpu) \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_LS \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_FT ) #else # define VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu) \ AssertMsg( VMCPU_IS_EMT(pVCpu) \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_LS \ || pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_FT, \ ("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \ RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu)) #endif /** @def VM_ASSERT_EMT0 * Asserts that the current thread IS emulation thread \#0 (EMT0). */ #define VM_ASSERT_EMT0(pVM) VMCPU_ASSERT_EMT(&(pVM)->aCpus[0]) /** @def VM_ASSERT_EMT0_RETURN * Asserts that the current thread IS emulation thread \#0 (EMT0) and returns if * it isn't. */ #define VM_ASSERT_EMT0_RETURN(pVM, rc) VMCPU_ASSERT_EMT_RETURN(&(pVM)->aCpus[0], (rc)) /** * Asserts that the current thread is NOT the emulation thread. */ #define VM_ASSERT_OTHER_THREAD(pVM) \ AssertMsg(!VM_IS_EMT(pVM), ("Not other thread!!\n")) /** @def VM_ASSERT_STATE_RETURN * Asserts a certain VM state. */ #define VM_ASSERT_STATE(pVM, _enmState) \ AssertMsg((pVM)->enmVMState == (_enmState), \ ("state %s, expected %s\n", VMGetStateName((pVM)->enmVMState), VMGetStateName(_enmState))) /** @def VM_ASSERT_STATE_RETURN * Asserts a certain VM state and returns if it doesn't match. */ #define VM_ASSERT_STATE_RETURN(pVM, _enmState, rc) \ AssertMsgReturn((pVM)->enmVMState == (_enmState), \ ("state %s, expected %s\n", VMGetStateName((pVM)->enmVMState), VMGetStateName(_enmState)), \ (rc)) /** @def VM_IS_VALID_EXT * Asserts a the VM handle is valid for external access, i.e. not being destroy * or terminated. */ #define VM_IS_VALID_EXT(pVM) \ ( RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE) \ && ( (unsigned)(pVM)->enmVMState < (unsigned)VMSTATE_DESTROYING \ || ( (unsigned)(pVM)->enmVMState == (unsigned)VMSTATE_DESTROYING \ && VM_IS_EMT(pVM))) ) /** @def VM_ASSERT_VALID_EXT_RETURN * Asserts a the VM handle is valid for external access, i.e. not being * destroy or terminated. */ #define VM_ASSERT_VALID_EXT_RETURN(pVM, rc) \ AssertMsgReturn(VM_IS_VALID_EXT(pVM), \ ("pVM=%p state %s\n", (pVM), RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE) \ ? VMGetStateName(pVM->enmVMState) : ""), \ (rc)) /** @def VMCPU_ASSERT_VALID_EXT_RETURN * Asserts a the VMCPU handle is valid for external access, i.e. not being * destroy or terminated. */ #define VMCPU_ASSERT_VALID_EXT_RETURN(pVCpu, rc) \ AssertMsgReturn( RT_VALID_ALIGNED_PTR(pVCpu, 64) \ && RT_VALID_ALIGNED_PTR((pVCpu)->CTX_SUFF(pVM), PAGE_SIZE) \ && (unsigned)(pVCpu)->CTX_SUFF(pVM)->enmVMState < (unsigned)VMSTATE_DESTROYING, \ ("pVCpu=%p pVM=%p state %s\n", (pVCpu), RT_VALID_ALIGNED_PTR(pVCpu, 64) ? (pVCpu)->CTX_SUFF(pVM) : NULL, \ RT_VALID_ALIGNED_PTR(pVCpu, 64) && RT_VALID_ALIGNED_PTR((pVCpu)->CTX_SUFF(pVM), PAGE_SIZE) \ ? VMGetStateName((pVCpu)->pVMR3->enmVMState) : ""), \ (rc)) #endif /* !VBOX_FOR_DTRACE_LIB */ /** * The cross context VM structure. * * It contains all the VM data which have to be available in all contexts. * Even if it contains all the data the idea is to use APIs not to modify all * the members all around the place. Therefore we make use of unions to hide * everything which isn't local to the current source module. This means we'll * have to pay a little bit of attention when adding new members to structures * in the unions and make sure to keep the padding sizes up to date. * * Run 'kmk run-struct-tests' (from src/VBox/VMM if you like) after updating! */ typedef struct VM { /** The state of the VM. * This field is read only to everyone except the VM and EM. */ VMSTATE volatile enmVMState; /** Forced action flags. * See the VM_FF_* \#defines. Updated atomically. */ volatile uint32_t fGlobalForcedActions; /** Pointer to the array of page descriptors for the VM structure allocation. */ R3PTRTYPE(PSUPPAGE) paVMPagesR3; /** Session handle. For use when calling SUPR0 APIs. */ PSUPDRVSESSION pSession; /** Pointer to the ring-3 VM structure. */ PUVM pUVM; /** Ring-3 Host Context VM Pointer. */ R3PTRTYPE(struct VM *) pVMR3; /** Ring-0 Host Context VM Pointer. */ R0PTRTYPE(struct VM *) pVMR0; /** Raw-mode Context VM Pointer. */ RCPTRTYPE(struct VM *) pVMRC; /** The GVM VM handle. Only the GVM should modify this field. */ uint32_t hSelf; /** Number of virtual CPUs. */ uint32_t cCpus; /** CPU excution cap (1-100) */ uint32_t uCpuExecutionCap; /** Size of the VM structure including the VMCPU array. */ uint32_t cbSelf; /** Offset to the VMCPU array starting from beginning of this structure. */ uint32_t offVMCPU; /** * VMMSwitcher assembly entry point returning to host context. * * Depending on how the host handles the rc status given in @a eax, this may * return and let the caller resume whatever it was doing prior to the call. * * * @param eax The return code, register. * @remark Assume interrupts disabled. * @remark This method pointer lives here because TRPM needs it. */ RTRCPTR pfnVMMRCToHostAsm/*(int32_t eax)*/; /** * VMMSwitcher assembly entry point returning to host context without saving the * raw-mode context (hyper) registers. * * Unlike pfnVMMRC2HCAsm, this will not return to the caller. Instead it * expects the caller to save a RC context in CPUM where one might return if the * return code indicate that this is possible. * * This method pointer lives here because TRPM needs it. * * @param eax The return code, register. * @remark Assume interrupts disabled. * @remark This method pointer lives here because TRPM needs it. */ RTRCPTR pfnVMMRCToHostAsmNoReturn/*(int32_t eax)*/; /** @name Various items that are frequently accessed. * @{ */ /** Whether to recompile user mode code or run it raw/hm. */ bool fRecompileUser; /** Whether to recompile supervisor mode code or run it raw/hm. */ bool fRecompileSupervisor; /** Whether raw mode supports ring-1 code or not. */ bool fRawRing1Enabled; /** PATM enabled flag. * This is placed here for performance reasons. */ bool fPATMEnabled; /** CSAM enabled flag. * This is placed here for performance reasons. */ bool fCSAMEnabled; /** Hardware VM support is available and enabled. * Determined very early during init. * This is placed here for performance reasons. */ bool fHMEnabled; /** For asserting on fHMEnable usage. */ bool fHMEnabledFixed; /** Hardware VM support requires a minimal raw-mode context. * This is never set on 64-bit hosts, only 32-bit hosts requires it. */ bool fHMNeedRawModeCtx; /** Set when this VM is the master FT node. * @todo This doesn't need to be here, FTM should store it in it's own * structures instead. */ bool fFaultTolerantMaster; /** Large page enabled flag. * @todo This doesn't need to be here, PGM should store it in it's own * structures instead. */ bool fUseLargePages; /** @} */ /** Alignment padding.. */ uint8_t uPadding1[2]; /** @name Debugging * @{ */ /** Raw-mode Context VM Pointer. */ RCPTRTYPE(RTTRACEBUF) hTraceBufRC; /** Ring-3 Host Context VM Pointer. */ R3PTRTYPE(RTTRACEBUF) hTraceBufR3; /** Ring-0 Host Context VM Pointer. */ R0PTRTYPE(RTTRACEBUF) hTraceBufR0; /** @} */ #if HC_ARCH_BITS == 32 /** Alignment padding.. */ uint32_t uPadding2; #endif /** @name Switcher statistics (remove) * @{ */ /** Profiling the total time from Qemu to GC. */ STAMPROFILEADV StatTotalQemuToGC; /** Profiling the total time from GC to Qemu. */ STAMPROFILEADV StatTotalGCToQemu; /** Profiling the total time spent in GC. */ STAMPROFILEADV StatTotalInGC; /** Profiling the total time spent not in Qemu. */ STAMPROFILEADV StatTotalInQemu; /** Profiling the VMMSwitcher code for going to GC. */ STAMPROFILEADV StatSwitcherToGC; /** Profiling the VMMSwitcher code for going to HC. */ STAMPROFILEADV StatSwitcherToHC; STAMPROFILEADV StatSwitcherSaveRegs; STAMPROFILEADV StatSwitcherSysEnter; STAMPROFILEADV StatSwitcherDebug; STAMPROFILEADV StatSwitcherCR0; STAMPROFILEADV StatSwitcherCR4; STAMPROFILEADV StatSwitcherJmpCR3; STAMPROFILEADV StatSwitcherRstrRegs; STAMPROFILEADV StatSwitcherLgdt; STAMPROFILEADV StatSwitcherLidt; STAMPROFILEADV StatSwitcherLldt; STAMPROFILEADV StatSwitcherTSS; /** @} */ /** Padding - the unions must be aligned on a 64 bytes boundary and the unions * must start at the same offset on both 64-bit and 32-bit hosts. */ uint8_t abAlignment3[(HC_ARCH_BITS == 32 ? 24 : 0) + 40]; /** CPUM part. */ union { #ifdef ___CPUMInternal_h struct CPUM s; #endif uint8_t padding[1536]; /* multiple of 64 */ } cpum; /** VMM part. */ union { #ifdef ___VMMInternal_h struct VMM s; #endif uint8_t padding[1600]; /* multiple of 64 */ } vmm; /** PGM part. */ union { #ifdef ___PGMInternal_h struct PGM s; #endif uint8_t padding[4096*2+6080]; /* multiple of 64 */ } pgm; /** HM part. */ union { #ifdef ___HMInternal_h struct HM s; #endif uint8_t padding[5440]; /* multiple of 64 */ } hm; /** TRPM part. */ union { #ifdef ___TRPMInternal_h struct TRPM s; #endif uint8_t padding[5248]; /* multiple of 64 */ } trpm; /** SELM part. */ union { #ifdef ___SELMInternal_h struct SELM s; #endif uint8_t padding[768]; /* multiple of 64 */ } selm; /** MM part. */ union { #ifdef ___MMInternal_h struct MM s; #endif uint8_t padding[192]; /* multiple of 64 */ } mm; /** PDM part. */ union { #ifdef ___PDMInternal_h struct PDM s; #endif uint8_t padding[1920]; /* multiple of 64 */ } pdm; /** IOM part. */ union { #ifdef ___IOMInternal_h struct IOM s; #endif uint8_t padding[896]; /* multiple of 64 */ } iom; /** PATM part. */ union { #ifdef ___PATMInternal_h struct PATM s; #endif uint8_t padding[768]; /* multiple of 64 */ } patm; /** CSAM part. */ union { #ifdef ___CSAMInternal_h struct CSAM s; #endif uint8_t padding[1088]; /* multiple of 64 */ } csam; /** EM part. */ union { #ifdef ___EMInternal_h struct EM s; #endif uint8_t padding[256]; /* multiple of 64 */ } em; /** TM part. */ union { #ifdef ___TMInternal_h struct TM s; #endif uint8_t padding[2432]; /* multiple of 64 */ } tm; /** DBGF part. */ union { #ifdef ___DBGFInternal_h struct DBGF s; #endif uint8_t padding[2368]; /* multiple of 64 */ } dbgf; /** SSM part. */ union { #ifdef ___SSMInternal_h struct SSM s; #endif uint8_t padding[128]; /* multiple of 64 */ } ssm; /** FTM part. */ union { #ifdef ___FTMInternal_h struct FTM s; #endif uint8_t padding[512]; /* multiple of 64 */ } ftm; /** REM part. */ union { #ifdef ___REMInternal_h struct REM s; #endif uint8_t padding[0x11100]; /* multiple of 64 */ } rem; /* ---- begin small stuff ---- */ /** VM part. */ union { #ifdef ___VMInternal_h struct VMINT s; #endif uint8_t padding[24]; /* multiple of 8 */ } vm; /** CFGM part. */ union { #ifdef ___CFGMInternal_h struct CFGM s; #endif uint8_t padding[8]; /* multiple of 8 */ } cfgm; /** Padding for aligning the cpu array on a page boundary. */ uint8_t abAlignment2[414]; /* ---- end small stuff ---- */ /** VMCPU array for the configured number of virtual CPUs. * Must be aligned on a page boundary for TLB hit reasons as well as * alignment of VMCPU members. */ VMCPU aCpus[1]; } VM; #ifdef IN_RC RT_C_DECLS_BEGIN /** The VM structure. * This is imported from the VMMGCBuiltin module, i.e. it's a one * of those magic globals which we should avoid using. */ extern DECLIMPORT(VM) g_VM; RT_C_DECLS_END #endif /** @} */ #endif