VmxMechanisms.h File Reference

VMX based mechanisms header. More...

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Macros
#define	IMMEDIATE_VMEXIT_MECHANISM_VECTOR_FOR_SELF_IPI   IPI_INTERRUPT

Functions
VOID	VmxMechanismCreateImmediateVmexit (VIRTUAL_MACHINE_STATE *VCpu)
	Create an immediate vm-exit after vm-entry.
VOID	VmxMechanismHandleImmediateVmexit (VIRTUAL_MACHINE_STATE *VCpu)
	Handle immediate vm-exit after vm-entry.

Detailed Description

VMX based mechanisms header.

Author

Sina Karvandi (sina@.nosp@m.hype.nosp@m.rdbg..nosp@m.org)

Version

0.1

Date

2021-12-16

Copyright

This project is released under the GNU Public License v3.

Macro Definition Documentation

IMMEDIATE_VMEXIT_MECHANISM_VECTOR_FOR_SELF_IPI

#define IMMEDIATE_VMEXIT_MECHANISM_VECTOR_FOR_SELF_IPI   IPI_INTERRUPT

Function Documentation

VmxMechanismCreateImmediateVmexit()

VOID VmxMechanismCreateImmediateVmexit

(

VIRTUAL_MACHINE_STATE *

VCpu

)

Create an immediate vm-exit after vm-entry.

Parameters

CurrentCoreIndex

Returns

VOID

{
    //
    // I didn't test vm-exit by preemption timer as my machine
    // or maybe VMware workstation's nested virtualization didn't
    // support VMX Preemption Timer, that's why we use self-ipi
    // method by default
    //
 
    //
    // Indicate wait for an immediate vm-exit
    //
    VCpu->WaitForImmediateVmexit = TRUE;
 
    //
    // Self-ipi current core
    //
    VmxMechanismCreateImmediateVmexitBySelfIpi();
 
    //
    // Set vm-exit on external interrupts
    //
    HvSetExternalInterruptExiting(VCpu, TRUE);
}

VmxMechanismHandleImmediateVmexit()

VOID VmxMechanismHandleImmediateVmexit

(

VIRTUAL_MACHINE_STATE *

VCpu

)

Handle immediate vm-exit after vm-entry.

Parameters

VCpu	The virtual processor's state

Returns

VOID

{
    //
    // Not waiting for immediate vm-exit anymore
    //
    VCpu->WaitForImmediateVmexit = FALSE;
 
    //
    // Set vm-exit on external interrupts
    //
    HvSetExternalInterruptExiting(VCpu, FALSE);
}