| 1 | /* $Id: GIMAllHv.cpp 51367 2014-05-23 07:45:35Z vboxsync $ */
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| 2 | /** @file
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| 3 | * GIM - Guest Interface Manager, Microsoft Hyper-V, All Contexts.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2014 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 |
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| 19 | /*******************************************************************************
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| 20 | * Header Files *
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| 21 | *******************************************************************************/
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| 22 | #define LOG_GROUP LOG_GROUP_GIM
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| 23 | #include "GIMHvInternal.h"
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| 24 |
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| 25 | #include <VBox/err.h>
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| 26 | #include <VBox/vmm/tm.h>
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| 27 | #include <VBox/vmm/vm.h>
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| 28 |
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| 29 | DECLEXPORT(int) GIMHvHypercall(PVMCPU pVCpu, PCPUMCTX pCtx)
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| 30 | {
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| 31 | return VINF_SUCCESS;
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| 32 | }
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| 33 |
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| 34 |
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| 35 | DECLEXPORT(int) GIMHvReadMsr(PVMCPU pVCpu, uint32_t idMsr, PCCPUMMSRRANGE pRange, uint64_t *puValue)
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| 36 | {
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| 37 | NOREF(pRange);
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| 38 | switch (idMsr)
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| 39 | {
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| 40 | case MSR_GIM_HV_TIME_REF_COUNT:
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| 41 | {
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| 42 | /* Hyper-V reports the time in 100ns units. */
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| 43 | uint64_t u64Tsc = TMCpuTickGet(pVCpu);
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| 44 | uint64_t u64TscHz = TMCpuTicksPerSecond(pVCpu->CTX_SUFF(pVM));
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| 45 | uint64_t u64Tsc100Ns = u64TscHz / UINT64_C(10000000); /* 100 ns */
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| 46 | *puValue = (u64Tsc / u64Tsc100Ns);
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| 47 | return VINF_SUCCESS;
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| 48 | }
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| 49 |
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| 50 | case MSR_GIM_HV_VP_INDEX:
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| 51 | *puValue = pVCpu->idCpu;
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| 52 | return VINF_SUCCESS;
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| 53 |
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| 54 | default:
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| 55 | break;
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| 56 | }
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| 57 |
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| 58 | LogRel(("GIMHvReadMsr: Unknown/invalid RdMsr %#RX32 -> #GP(0)\n", idMsr));
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| 59 | return VERR_CPUM_RAISE_GP_0;
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| 60 | }
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| 61 |
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| 62 |
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| 63 | DECLEXPORT(int) GIMHvWriteMsr(PVMCPU pVCpu, uint32_t idMsr, PCCPUMMSRRANGE pRange, uint64_t uValue, uint64_t uRawValue)
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| 64 | {
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| 65 | LogRel(("GIMHvWriteMsr: Unknown/invalid WrMsr %#RX32 -> #GP(0)\n", idMsr));
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| 66 | return VERR_CPUM_RAISE_GP_0;
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| 67 | }
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| 68 |
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