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Diffstat (limited to 'src/VBox/VMM/VMMAll/HWACCMAll.cpp')
-rw-r--r--src/VBox/VMM/VMMAll/HWACCMAll.cpp339
1 files changed, 0 insertions, 339 deletions
diff --git a/src/VBox/VMM/VMMAll/HWACCMAll.cpp b/src/VBox/VMM/VMMAll/HWACCMAll.cpp
deleted file mode 100644
index 838e1510..00000000
--- a/src/VBox/VMM/VMMAll/HWACCMAll.cpp
+++ /dev/null
@@ -1,339 +0,0 @@
-/* $Id: HWACCMAll.cpp $ */
-/** @file
- * HWACCM - All contexts.
- */
-
-/*
- * Copyright (C) 2006-2012 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.
- */
-
-
-/*******************************************************************************
-* Header Files *
-*******************************************************************************/
-#define LOG_GROUP LOG_GROUP_HWACCM
-#include <VBox/vmm/hwaccm.h>
-#include <VBox/vmm/pgm.h>
-#include "HWACCMInternal.h"
-#include <VBox/vmm/vm.h>
-#include <VBox/vmm/hwacc_vmx.h>
-#include <VBox/vmm/hwacc_svm.h>
-#include <VBox/err.h>
-#include <VBox/log.h>
-#include <iprt/param.h>
-#include <iprt/assert.h>
-#include <iprt/asm.h>
-#include <iprt/string.h>
-#include <iprt/x86.h>
-
-
-/**
- * Queues a page for invalidation
- *
- * @returns VBox status code.
- * @param pVCpu Pointer to the VMCPU.
- * @param GCVirt Page to invalidate
- */
-static void hwaccmQueueInvlPage(PVMCPU pVCpu, RTGCPTR GCVirt)
-{
- /* Nothing to do if a TLB flush is already pending */
- if (VMCPU_FF_ISSET(pVCpu, VMCPU_FF_TLB_FLUSH))
- return;
-#if 1
- VMCPU_FF_SET(pVCpu, VMCPU_FF_TLB_FLUSH);
- NOREF(GCVirt);
-#else
- Be very careful when activating this code!
- if (iPage == RT_ELEMENTS(pVCpu->hwaccm.s.TlbShootdown.aPages))
- VMCPU_FF_SET(pVCpu, VMCPU_FF_TLB_FLUSH);
- else
- VMCPU_FF_SET(pVCpu, VMCPU_FF_TLB_SHOOTDOWN);
-#endif
-}
-
-/**
- * Invalidates a guest page
- *
- * @returns VBox status code.
- * @param pVCpu Pointer to the VMCPU.
- * @param GCVirt Page to invalidate
- */
-VMMDECL(int) HWACCMInvalidatePage(PVMCPU pVCpu, RTGCPTR GCVirt)
-{
- STAM_COUNTER_INC(&pVCpu->hwaccm.s.StatFlushPageManual);
-#ifdef IN_RING0
- PVM pVM = pVCpu->CTX_SUFF(pVM);
- if (pVM->hwaccm.s.vmx.fSupported)
- return VMXR0InvalidatePage(pVM, pVCpu, GCVirt);
-
- Assert(pVM->hwaccm.s.svm.fSupported);
- return SVMR0InvalidatePage(pVM, pVCpu, GCVirt);
-
-#else
- hwaccmQueueInvlPage(pVCpu, GCVirt);
- return VINF_SUCCESS;
-#endif
-}
-
-/**
- * Flushes the guest TLB
- *
- * @returns VBox status code.
- * @param pVCpu Pointer to the VMCPU.
- */
-VMMDECL(int) HWACCMFlushTLB(PVMCPU pVCpu)
-{
- LogFlow(("HWACCMFlushTLB\n"));
-
- VMCPU_FF_SET(pVCpu, VMCPU_FF_TLB_FLUSH);
- STAM_COUNTER_INC(&pVCpu->hwaccm.s.StatFlushTLBManual);
- return VINF_SUCCESS;
-}
-
-#ifdef IN_RING0
-
-/**
- * Dummy RTMpOnSpecific handler since RTMpPokeCpu couldn't be used.
- *
- */
-static DECLCALLBACK(void) hwaccmFlushHandler(RTCPUID idCpu, void *pvUser1, void *pvUser2)
-{
- NOREF(idCpu); NOREF(pvUser1); NOREF(pvUser2);
- return;
-}
-
-/**
- * Wrapper for RTMpPokeCpu to deal with VERR_NOT_SUPPORTED.
- */
-static void hmR0PokeCpu(PVMCPU pVCpu, RTCPUID idHostCpu)
-{
- uint32_t cWorldSwitchExits = ASMAtomicUoReadU32(&pVCpu->hwaccm.s.cWorldSwitchExits);
-
- STAM_PROFILE_ADV_START(&pVCpu->hwaccm.s.StatPoke, x);
- int rc = RTMpPokeCpu(idHostCpu);
- STAM_PROFILE_ADV_STOP(&pVCpu->hwaccm.s.StatPoke, x);
-
- /* Not implemented on some platforms (Darwin, Linux kernel < 2.6.19); fall
- back to a less efficient implementation (broadcast). */
- if (rc == VERR_NOT_SUPPORTED)
- {
- STAM_PROFILE_ADV_START(&pVCpu->hwaccm.s.StatSpinPoke, z);
- /* synchronous. */
- RTMpOnSpecific(idHostCpu, hwaccmFlushHandler, 0, 0);
- STAM_PROFILE_ADV_STOP(&pVCpu->hwaccm.s.StatSpinPoke, z);
- }
- else
- {
- if (rc == VINF_SUCCESS)
- STAM_PROFILE_ADV_START(&pVCpu->hwaccm.s.StatSpinPoke, z);
- else
- STAM_PROFILE_ADV_START(&pVCpu->hwaccm.s.StatSpinPokeFailed, z);
-
-/** @todo If more than one CPU is going to be poked, we could optimize this
- * operation by poking them first and wait afterwards. Would require
- * recording who to poke and their current cWorldSwitchExits values,
- * that's something not suitable for stack... So, pVCpu->hm.s.something
- * then. */
- /* Spin until the VCPU has switched back (poking is async). */
- while ( ASMAtomicUoReadBool(&pVCpu->hwaccm.s.fCheckedTLBFlush)
- && cWorldSwitchExits == ASMAtomicUoReadU32(&pVCpu->hwaccm.s.cWorldSwitchExits))
- ASMNopPause();
-
- if (rc == VINF_SUCCESS)
- STAM_PROFILE_ADV_STOP(&pVCpu->hwaccm.s.StatSpinPoke, z);
- else
- STAM_PROFILE_ADV_STOP(&pVCpu->hwaccm.s.StatSpinPokeFailed, z);
- }
-}
-
-#endif /* IN_RING0 */
-#ifndef IN_RC
-
-/**
- * Poke an EMT so it can perform the appropriate TLB shootdowns.
- *
- * @param pVCpu The handle of the virtual CPU to poke.
- * @param fAccountFlushStat Whether to account the call to
- * StatTlbShootdownFlush or StatTlbShootdown.
- */
-static void hmPokeCpuForTlbFlush(PVMCPU pVCpu, bool fAccountFlushStat)
-{
- if (ASMAtomicUoReadBool(&pVCpu->hwaccm.s.fCheckedTLBFlush))
- {
- if (fAccountFlushStat)
- STAM_COUNTER_INC(&pVCpu->hwaccm.s.StatTlbShootdownFlush);
- else
- STAM_COUNTER_INC(&pVCpu->hwaccm.s.StatTlbShootdown);
-#ifdef IN_RING0
- RTCPUID idHostCpu = pVCpu->hwaccm.s.idEnteredCpu;
- if (idHostCpu != NIL_RTCPUID)
- hmR0PokeCpu(pVCpu, idHostCpu);
-#else
- VMR3NotifyCpuFFU(pVCpu->pUVCpu, VMNOTIFYFF_FLAGS_POKE);
-#endif
- }
- else
- STAM_COUNTER_INC(&pVCpu->hwaccm.s.StatFlushPageManual);
-}
-
-
-/**
- * Invalidates a guest page on all VCPUs.
- *
- * @returns VBox status code.
- * @param pVM Pointer to the VM.
- * @param GCVirt Page to invalidate
- */
-VMMDECL(int) HWACCMInvalidatePageOnAllVCpus(PVM pVM, RTGCPTR GCPtr)
-{
- VMCPUID idCurCpu = VMMGetCpuId(pVM);
- STAM_COUNTER_INC(&pVM->aCpus[idCurCpu].hwaccm.s.StatFlushPage);
-
- for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
- {
- PVMCPU pVCpu = &pVM->aCpus[idCpu];
-
- /* Nothing to do if a TLB flush is already pending; the VCPU should
- have already been poked if it were active. */
- if (VMCPU_FF_ISSET(pVCpu, VMCPU_FF_TLB_FLUSH))
- continue;
-
- if (pVCpu->idCpu == idCurCpu)
- HWACCMInvalidatePage(pVCpu, GCPtr);
- else
- {
- hwaccmQueueInvlPage(pVCpu, GCPtr);
- hmPokeCpuForTlbFlush(pVCpu, false /*fAccountFlushStat*/);
- }
- }
-
- return VINF_SUCCESS;
-}
-
-
-/**
- * Flush the TLBs of all VCPUs
- *
- * @returns VBox status code.
- * @param pVM Pointer to the VM.
- */
-VMMDECL(int) HWACCMFlushTLBOnAllVCpus(PVM pVM)
-{
- if (pVM->cCpus == 1)
- return HWACCMFlushTLB(&pVM->aCpus[0]);
-
- VMCPUID idThisCpu = VMMGetCpuId(pVM);
-
- STAM_COUNTER_INC(&pVM->aCpus[idThisCpu].hwaccm.s.StatFlushTLB);
-
- for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
- {
- PVMCPU pVCpu = &pVM->aCpus[idCpu];
-
- /* Nothing to do if a TLB flush is already pending; the VCPU should
- have already been poked if it were active. */
- if (!VMCPU_FF_ISSET(pVCpu, VMCPU_FF_TLB_FLUSH))
- {
- VMCPU_FF_SET(pVCpu, VMCPU_FF_TLB_FLUSH);
- if (idThisCpu != idCpu)
- hmPokeCpuForTlbFlush(pVCpu, true /*fAccountFlushStat*/);
- }
- }
-
- return VINF_SUCCESS;
-}
-
-#endif /* !IN_RC */
-
-/**
- * Checks if nested paging is enabled
- *
- * @returns boolean
- * @param pVM Pointer to the VM.
- */
-VMMDECL(bool) HWACCMIsNestedPagingActive(PVM pVM)
-{
- return HWACCMIsEnabled(pVM) && pVM->hwaccm.s.fNestedPaging;
-}
-
-/**
- * Return the shadow paging mode for nested paging/ept
- *
- * @returns shadow paging mode
- * @param pVM Pointer to the VM.
- */
-VMMDECL(PGMMODE) HWACCMGetShwPagingMode(PVM pVM)
-{
- Assert(HWACCMIsNestedPagingActive(pVM));
- if (pVM->hwaccm.s.svm.fSupported)
- return PGMMODE_NESTED;
-
- Assert(pVM->hwaccm.s.vmx.fSupported);
- return PGMMODE_EPT;
-}
-
-/**
- * Invalidates a guest page by physical address
- *
- * NOTE: Assumes the current instruction references this physical page though a virtual address!!
- *
- * @returns VBox status code.
- * @param pVM Pointer to the VM.
- * @param GCPhys Page to invalidate
- */
-VMMDECL(int) HWACCMInvalidatePhysPage(PVM pVM, RTGCPHYS GCPhys)
-{
- if (!HWACCMIsNestedPagingActive(pVM))
- return VINF_SUCCESS;
-
-#ifdef IN_RING0
- if (pVM->hwaccm.s.vmx.fSupported)
- {
- VMCPUID idThisCpu = VMMGetCpuId(pVM);
-
- for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
- {
- PVMCPU pVCpu = &pVM->aCpus[idCpu];
-
- if (idThisCpu == idCpu)
- VMXR0InvalidatePhysPage(pVM, pVCpu, GCPhys);
- else
- {
- VMCPU_FF_SET(pVCpu, VMCPU_FF_TLB_FLUSH);
- hmPokeCpuForTlbFlush(pVCpu, true /*fAccountFlushStat*/);
- }
- }
- return VINF_SUCCESS;
- }
-
- /* AMD-V doesn't support invalidation with guest physical addresses; see
- comment in SVMR0InvalidatePhysPage. */
- Assert(pVM->hwaccm.s.svm.fSupported);
-#else
- NOREF(GCPhys);
-#endif
-
- HWACCMFlushTLBOnAllVCpus(pVM);
- return VINF_SUCCESS;
-}
-
-/**
- * Checks if an interrupt event is currently pending.
- *
- * @returns Interrupt event pending state.
- * @param pVM Pointer to the VM.
- */
-VMMDECL(bool) HWACCMHasPendingIrq(PVM pVM)
-{
- PVMCPU pVCpu = VMMGetCpu(pVM);
- return !!pVCpu->hwaccm.s.Event.fPending;
-}
-
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