/* $Id: timesupref.cpp 69111 2017-10-17 14:26:02Z vboxsync $ */ /** @file * IPRT - Time using SUPLib, the C Implementation. */ /* * Copyright (C) 2006-2017 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. */ #if !defined(IN_GUEST) && !defined(RT_NO_GIP) /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #include #include "internal/iprt.h" #include #include #include #include #include #ifdef IN_RC # include # include #endif #include "internal/time.h" #define TMPL_MODE_SYNC_INVAR_NO_DELTA 1 #define TMPL_MODE_SYNC_INVAR_WITH_DELTA 2 #define TMPL_MODE_ASYNC 3 /* * Use the XCHG instruction for some kind of serialization. */ #define TMPL_READ_FENCE() ASMReadFence() #undef TMPL_MODE #define TMPL_MODE TMPL_MODE_SYNC_INVAR_NO_DELTA #undef TMPL_GET_CPU_METHOD #define TMPL_GET_CPU_METHOD 0 #undef rtTimeNanoTSInternalRef #define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarNoDelta #include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarNoDelta); #ifdef IN_RING3 # undef TMPL_MODE # define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDeltaUseApicId # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDeltaUseApicId); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDeltaUseRdtscp # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDeltaUseRdtscp); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDeltaUseIdtrLim # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDeltaUseIdtrLim); # undef TMPL_MODE # define TMPL_MODE TMPL_MODE_ASYNC # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseApicId # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseApicId); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseRdtscp # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseRdtscp); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseIdtrLim # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseIdtrLim); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_GROUP_IN_CH_NUMBER_IN_CL # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseRdtscpGroupChNumCl # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseRdtscpGroupChNumCl); #else /* IN_RC || IN_RING0: Disable interrupts and call getter function. */ # undef TMPL_MODE # define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD UINT32_MAX # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDelta # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDelta); # undef TMPL_MODE # define TMPL_MODE TMPL_MODE_ASYNC # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsync # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsync); #endif /* * Use LFENCE for load serialization. */ #undef TMPL_READ_FENCE #define TMPL_READ_FENCE() ASMReadFenceSSE2() #undef TMPL_MODE #define TMPL_MODE TMPL_MODE_SYNC_INVAR_NO_DELTA #undef TMPL_GET_CPU_METHOD #define TMPL_GET_CPU_METHOD 0 #undef rtTimeNanoTSInternalRef #define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarNoDelta #include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarNoDelta); #ifdef IN_RING3 # undef TMPL_MODE # define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDeltaUseApicId # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDeltaUseApicId); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDeltaUseRdtscp # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDeltaUseRdtscp); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDeltaUseIdtrLim # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDeltaUseIdtrLim); # undef TMPL_MODE # define TMPL_MODE TMPL_MODE_ASYNC # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseApicId # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseApicId); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseRdtscp # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseRdtscp); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseIdtrLim # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseIdtrLim); # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_GROUP_IN_CH_NUMBER_IN_CL # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseRdtscpGroupChNumCl # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseRdtscpGroupChNumCl); #else /* IN_RC || IN_RING0: Disable interrupts and call getter function. */ # undef TMPL_MODE # define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA # undef TMPL_GET_CPU_METHOD # define TMPL_GET_CPU_METHOD UINT32_MAX # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDelta # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDelta); # undef TMPL_MODE # define TMPL_MODE TMPL_MODE_ASYNC # undef rtTimeNanoTSInternalRef # define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsync # include "timesupref.h" RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsync); #endif #endif /* !IN_GUEST && !RT_NO_GIP */