| 1 | /* $Id: HWSVMR0.h 23 2007-01-15 14:08:28Z vboxsync $ */
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| 2 | /** @file
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| 3 | * HWACCM SVM - Internal header file.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006 InnoTek Systemberatung GmbH
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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 as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * If you received this file as part of a commercial VirtualBox
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| 18 | * distribution, then only the terms of your commercial VirtualBox
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| 19 | * license agreement apply instead of the previous paragraph.
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| 20 | */
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| 21 |
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| 22 | #ifndef __HWSVMR0_h__
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| 23 | #define __HWSVMR0_h__
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| 24 |
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| 25 | #include <VBox/cdefs.h>
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| 26 | #include <VBox/types.h>
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| 27 | #include <VBox/em.h>
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| 28 | #include <VBox/stam.h>
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| 29 | #include <VBox/dis.h>
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| 30 | #include <VBox/hwaccm.h>
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| 31 | #include <VBox/pgm.h>
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| 32 | #include <VBox/hwacc_svm.h>
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| 33 |
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| 34 | __BEGIN_DECLS
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| 35 |
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| 36 | /** @defgroup grp_svm Internal
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| 37 | * @ingroup grp_svm
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| 38 | * @internal
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| 39 | * @{
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| 40 | */
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| 41 |
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| 42 | #ifdef IN_RING0
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| 43 |
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| 44 | /**
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| 45 | * Enable SVM
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| 46 | *
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| 47 | * @returns VBox status code.
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| 48 | * @param pVM The VM to operate on.
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| 49 | */
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| 50 | HWACCMR0DECL(int) SVMR0Enable(PVM pVM);
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| 51 |
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| 52 | /**
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| 53 | * Disable SVM
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| 54 | *
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| 55 | * @returns VBox status code.
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| 56 | * @param pVM The VM to operate on.
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| 57 | */
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| 58 | HWACCMR0DECL(int) SVMR0Disable(PVM pVM);
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| 59 |
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| 60 | /**
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| 61 | * Sets up and activates SVM
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| 62 | *
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| 63 | * @returns VBox status code.
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| 64 | * @param pVM The VM to operate on.
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| 65 | */
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| 66 | HWACCMR0DECL(int) SVMR0Setup(PVM pVM);
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| 67 |
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| 68 |
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| 69 | /**
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| 70 | * Runs guest code in a SVM VM.
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| 71 | *
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| 72 | * @note NEVER EVER turn on interrupts here. Due to our illegal entry into the kernel, it might mess things up. (XP kernel traps have been frequently observed)
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| 73 | *
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| 74 | * @returns VBox status code.
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| 75 | * @param pVM The VM to operate on.
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| 76 | * @param pCtx Guest context
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| 77 | */
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| 78 | HWACCMR0DECL(int) SVMR0RunGuestCode(PVM pVM, CPUMCTX *pCtx);
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| 79 |
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| 80 |
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| 81 | /**
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| 82 | * Loads the guest state
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| 83 | *
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| 84 | * @returns VBox status code.
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| 85 | * @param pVM The VM to operate on.
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| 86 | * @param pCtx Guest context
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| 87 | */
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| 88 | HWACCMR0DECL(int) SVMR0LoadGuestState(PVM pVM, CPUMCTX *pCtx);
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| 89 |
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| 90 |
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| 91 | /* Convert hidden selector attribute word between VMX and SVM formats. */
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| 92 | #define SVM_HIDSEGATTR_VMX2SVM(a) (a & 0xFF) | ((a & 0xF000) >> 4)
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| 93 | #define SVM_HIDSEGATTR_SVM2VMX(a) (a & 0xFF) | ((a & 0x0F00) << 4)
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| 94 |
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| 95 | #define SVM_WRITE_SELREG(REG, reg) \
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| 96 | pVMCB->guest.REG.u16Sel = pCtx->reg; \
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| 97 | pVMCB->guest.REG.u32Limit = pCtx->reg##Hid.u32Limit; \
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| 98 | pVMCB->guest.REG.u64Base = pCtx->reg##Hid.u32Base; \
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| 99 | if (pCtx->reg) \
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| 100 | pVMCB->guest.REG.u16Attr = SVM_HIDSEGATTR_VMX2SVM(pCtx->reg##Hid.Attr.u); \
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| 101 | else \
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| 102 | pVMCB->guest.REG.u16Attr = 0;
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| 103 |
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| 104 | #define SVM_READ_SELREG(REG, reg) \
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| 105 | pCtx->reg = pVMCB->guest.REG.u16Sel; \
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| 106 | pCtx->reg##Hid.u32Limit = pVMCB->guest.REG.u32Limit; \
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| 107 | pCtx->reg##Hid.u32Base = pVMCB->guest.REG.u64Base; \
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| 108 | pCtx->reg##Hid.Attr.u = SVM_HIDSEGATTR_SVM2VMX(pVMCB->guest.REG.u16Attr);
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| 109 |
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| 110 | #endif /* IN_RING0 */
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| 111 |
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| 112 | /** @} */
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| 113 |
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| 114 | __END_DECLS
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| 115 |
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| 116 | #endif
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| 117 |
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