Implements VMM initialization functions. More...

#include "vm.h"
#include <limits.h>
#include <intrin.h>
#include "asm.h"
#include "common.h"
#include "ept.h"
#include "log.h"
#include "util.h"
#include "vmm.h"

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Functions
static bool	VmpIsVmxAvailable ()

static NTSTATUS	VmpSetLockBitCallback (_In_opt_ void *context)

static SharedProcessorData *	VmpInitializeSharedData ()

static void *	VmpBuildMsrBitmap ()

static UCHAR *	VmpBuildIoBitmaps ()

static NTSTATUS	VmpStartVm (_In_opt_ void *context)

static void	VmpInitializeVm (_In_ ULONG_PTR guest_stack_pointer, _In_ ULONG_PTR guest_instruction_pointer, _In_opt_ void *context)

static bool	VmpEnterVmxMode (_Inout_ ProcessorData *processor_data)

static bool	VmpInitializeVmcs (_Inout_ ProcessorData *processor_data)

static bool	VmpSetupVmcs (_In_ const ProcessorData *processor_data, _In_ ULONG_PTR guest_stack_pointer, _In_ ULONG_PTR guest_instruction_pointer, _In_ ULONG_PTR vmm_stack_pointer)

static void	VmpLaunchVm ()

static ULONG	VmpGetSegmentAccessRight (_In_ USHORT segment_selector)

static ULONG_PTR	VmpGetSegmentBase (_In_ ULONG_PTR gdt_base, _In_ USHORT segment_selector)

static SegmentDescriptor *	VmpGetSegmentDescriptor (_In_ ULONG_PTR descriptor_table_base, _In_ USHORT segment_selector)

static ULONG_PTR	VmpGetSegmentBaseByDescriptor (_In_ const SegmentDescriptor *segment_descriptor)

static ULONG	VmpAdjustControlValue (_In_ Msr msr, _In_ ULONG requested_value)

static NTSTATUS	VmpStopVm (_In_opt_ void *context)

static void	VmpFreeProcessorData (_In_opt_ ProcessorData *processor_data)

static void	VmpFreeSharedData (_In_ ProcessorData *processor_data)

static bool	VmpIsHyperPlatformInstalled ()

ULONG	GetSegmentLimit (_In_ ULONG selector)

NTSTATUS	VmInitialization ()
	Virtualizes all processors. More...

static NTSTATUS	VmpSetLockBitCallback (void *context)

static NTSTATUS	VmpStartVm (void *context)

static void	VmpInitializeVm (ULONG_PTR guest_stack_pointer, ULONG_PTR guest_instruction_pointer, void *context)

static bool	VmpEnterVmxMode (ProcessorData *processor_data)

static bool	VmpInitializeVmcs (ProcessorData *processor_data)

static bool	VmpSetupVmcs (const ProcessorData *processor_data, ULONG_PTR guest_stack_pointer, ULONG_PTR guest_instruction_pointer, ULONG_PTR vmm_stack_pointer)

static ULONG	VmpGetSegmentAccessRight (USHORT segment_selector)

static ULONG_PTR	VmpGetSegmentBase (ULONG_PTR gdt_base, USHORT segment_selector)

static SegmentDescriptor *	VmpGetSegmentDescriptor (ULONG_PTR descriptor_table_base, USHORT segment_selector)

static ULONG_PTR	VmpGetSegmentBaseByDescriptor (const SegmentDescriptor *segment_descriptor)

static ULONG	VmpAdjustControlValue (Msr msr, ULONG requested_value)

void	VmTermination ()
	De-virtualize all processors. More...

static NTSTATUS	VmpStopVm (void *context)

static void	VmpFreeProcessorData (ProcessorData *processor_data)

static void	VmpFreeSharedData (ProcessorData *processor_data)

NTSTATUS	VmHotplugCallback (const PROCESSOR_NUMBER &proc_num)
	Virtualizes the specified processor. More...

Detailed Description

Implements VMM initialization functions.

Definition in file vm.cpp.

Function Documentation

◆ GetSegmentLimit()

ULONG GetSegmentLimit ( _In_ ULONG selector )

inline

Definition at line 137 of file vm.cpp.

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◆ VmHotplugCallback()

NTSTATUS VmHotplugCallback ( const PROCESSOR_NUMBER & proc_num )

Virtualizes the specified processor.

Parameters

proc_num A processor number to virtualize

Returns: STATUS_SUCCESS on success

The processor 0 must have already been virtualized, or it fails.

Definition at line 997 of file vm.cpp.

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◆ VmInitialization()

NTSTATUS VmInitialization ( )

Virtualizes all processors.

Returns: STATUS_SUCCESS on success

Initializes a VMCS region and virtualizes (ie, enters the VMX non-root operation mode) for each processor. Returns non STATUS_SUCCESS value if any of processors failed to do so. In that case, this function de-virtualize already virtualized processors.

Definition at line 143 of file vm.cpp.

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◆ VmpAdjustControlValue() [1/2]

static ULONG VmpAdjustControlValue	(	_In_ Msr	msr,
		_In_ ULONG	requested_value
	)

static

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◆ VmpAdjustControlValue() [2/2]

static ULONG VmpAdjustControlValue	(	Msr	msr,
		ULONG	requested_value
	)

static

Definition at line 874 of file vm.cpp.

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◆ VmpBuildIoBitmaps()

static UCHAR * VmpBuildIoBitmaps ( )

static

Definition at line 313 of file vm.cpp.

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◆ VmpBuildMsrBitmap()

static void * VmpBuildMsrBitmap ( )

static

Definition at line 269 of file vm.cpp.

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◆ VmpEnterVmxMode() [1/2]

static bool VmpEnterVmxMode ( _Inout_ ProcessorData * processor_data )

static

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◆ VmpEnterVmxMode() [2/2]

static bool VmpEnterVmxMode ( ProcessorData * processor_data )

static

Definition at line 468 of file vm.cpp.

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◆ VmpFreeProcessorData() [1/2]

static void VmpFreeProcessorData ( _In_opt_ ProcessorData * processor_data )

static

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◆ VmpFreeProcessorData() [2/2]

static void VmpFreeProcessorData ( ProcessorData * processor_data )

static

Definition at line 928 of file vm.cpp.

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◆ VmpFreeSharedData() [1/2]

static void VmpFreeSharedData ( _In_ ProcessorData * processor_data )

static

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◆ VmpFreeSharedData() [2/2]

static void VmpFreeSharedData ( ProcessorData * processor_data )

static

Definition at line 955 of file vm.cpp.

◆ VmpGetSegmentAccessRight() [1/2]

static ULONG VmpGetSegmentAccessRight ( _In_ USHORT segment_selector )

static

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◆ VmpGetSegmentAccessRight() [2/2]

static ULONG VmpGetSegmentAccessRight ( USHORT segment_selector )

static

Definition at line 799 of file vm.cpp.

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◆ VmpGetSegmentBase() [1/2]

static ULONG_PTR VmpGetSegmentBase	(	_In_ ULONG_PTR	gdt_base,
		_In_ USHORT	segment_selector
	)

static

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◆ VmpGetSegmentBase() [2/2]

static ULONG_PTR VmpGetSegmentBase	(	ULONG_PTR	gdt_base,
		USHORT	segment_selector
	)

static

Definition at line 819 of file vm.cpp.

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◆ VmpGetSegmentBaseByDescriptor() [1/2]

static ULONG_PTR VmpGetSegmentBaseByDescriptor ( _In_ const SegmentDescriptor * segment_descriptor )

static

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◆ VmpGetSegmentBaseByDescriptor() [2/2]

static ULONG_PTR VmpGetSegmentBaseByDescriptor ( const SegmentDescriptor * segment_descriptor )

static

Definition at line 854 of file vm.cpp.

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◆ VmpGetSegmentDescriptor() [1/2]

static SegmentDescriptor* VmpGetSegmentDescriptor	(	_In_ ULONG_PTR	descriptor_table_base,
		_In_ USHORT	segment_selector
	)

static

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◆ VmpGetSegmentDescriptor() [2/2]

static SegmentDescriptor* VmpGetSegmentDescriptor	(	ULONG_PTR	descriptor_table_base,
		USHORT	segment_selector
	)

static

Definition at line 844 of file vm.cpp.

◆ VmpInitializeSharedData()

static SharedProcessorData * VmpInitializeSharedData ( )

static

Definition at line 237 of file vm.cpp.

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◆ VmpInitializeVm() [1/2]

static void VmpInitializeVm	(	_In_ ULONG_PTR	guest_stack_pointer,
		_In_ ULONG_PTR	guest_instruction_pointer,
		_In_opt_ void *	context
	)

static

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◆ VmpInitializeVm() [2/2]

static void VmpInitializeVm	(	ULONG_PTR	guest_stack_pointer,
		ULONG_PTR	guest_instruction_pointer,
		void *	context
	)

static

Definition at line 358 of file vm.cpp.

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◆ VmpInitializeVmcs() [1/2]

static bool VmpInitializeVmcs ( _Inout_ ProcessorData * processor_data )

static

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◆ VmpInitializeVmcs() [2/2]

static bool VmpInitializeVmcs ( ProcessorData * processor_data )

static

Definition at line 524 of file vm.cpp.

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◆ VmpIsHyperPlatformInstalled()

static bool VmpIsHyperPlatformInstalled ( )

static

Definition at line 981 of file vm.cpp.

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◆ VmpIsVmxAvailable()

static bool VmpIsVmxAvailable ( )

static

Definition at line 172 of file vm.cpp.

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◆ VmpLaunchVm()

static void VmpLaunchVm ( )

static

Definition at line 779 of file vm.cpp.

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◆ VmpSetLockBitCallback() [1/2]

static NTSTATUS VmpSetLockBitCallback ( _In_opt_ void * context )

static

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◆ VmpSetLockBitCallback() [2/2]

static NTSTATUS VmpSetLockBitCallback ( void * context )

static

Definition at line 217 of file vm.cpp.

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◆ VmpSetupVmcs() [1/2]

static bool VmpSetupVmcs	(	_In_ const ProcessorData *	processor_data,
		_In_ ULONG_PTR	guest_stack_pointer,
		_In_ ULONG_PTR	guest_instruction_pointer,
		_In_ ULONG_PTR	vmm_stack_pointer
	)

static

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◆ VmpSetupVmcs() [2/2]

static bool VmpSetupVmcs	(	const ProcessorData *	processor_data,
		ULONG_PTR	guest_stack_pointer,
		ULONG_PTR	guest_instruction_pointer,
		ULONG_PTR	vmm_stack_pointer
	)

static

Definition at line 546 of file vm.cpp.

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◆ VmpStartVm() [1/2]

static NTSTATUS VmpStartVm ( _In_opt_ void * context )

static

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◆ VmpStartVm() [2/2]

static NTSTATUS VmpStartVm ( void * context )

static

Definition at line 342 of file vm.cpp.

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◆ VmpStopVm() [1/2]

static NTSTATUS VmpStopVm ( _In_opt_ void * context )

static

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◆ VmpStopVm() [2/2]

static NTSTATUS VmpStopVm ( void * context )

static

Definition at line 904 of file vm.cpp.

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◆ VmTermination()

void VmTermination ( )

De-virtualize all processors.

Definition at line 890 of file vm.cpp.

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Functions

Detailed Description

Function Documentation

◆ GetSegmentLimit()

◆ VmHotplugCallback()

◆ VmInitialization()

◆ VmpAdjustControlValue() [1/2]

◆ VmpAdjustControlValue() [2/2]

◆ VmpBuildIoBitmaps()

◆ VmpBuildMsrBitmap()

◆ VmpEnterVmxMode() [1/2]

◆ VmpEnterVmxMode() [2/2]

◆ VmpFreeProcessorData() [1/2]

◆ VmpFreeProcessorData() [2/2]

◆ VmpFreeSharedData() [1/2]

◆ VmpFreeSharedData() [2/2]

◆ VmpGetSegmentAccessRight() [1/2]

◆ VmpGetSegmentAccessRight() [2/2]

◆ VmpGetSegmentBase() [1/2]

◆ VmpGetSegmentBase() [2/2]

◆ VmpGetSegmentBaseByDescriptor() [1/2]

◆ VmpGetSegmentBaseByDescriptor() [2/2]

◆ VmpGetSegmentDescriptor() [1/2]

◆ VmpGetSegmentDescriptor() [2/2]

◆ VmpInitializeSharedData()

◆ VmpInitializeVm() [1/2]

◆ VmpInitializeVm() [2/2]

◆ VmpInitializeVmcs() [1/2]

◆ VmpInitializeVmcs() [2/2]

◆ VmpIsHyperPlatformInstalled()

◆ VmpIsVmxAvailable()

◆ VmpLaunchVm()

◆ VmpSetLockBitCallback() [1/2]

◆ VmpSetLockBitCallback() [2/2]

◆ VmpSetupVmcs() [1/2]

◆ VmpSetupVmcs() [2/2]

◆ VmpStartVm() [1/2]

◆ VmpStartVm() [2/2]

◆ VmpStopVm() [1/2]

◆ VmpStopVm() [2/2]

◆ VmTermination()