虚拟中断

通过调用VPICD服务VPICD_Virtualize_IRQ来注册中断的和使用从VHardwareInt派生一个类虚拟中断有什么区别？ :P

VHardwareInt use VPICD_Virtualize_IRQ

BOOL VHardwareInt::hook()
{
VID virqdesc;
DWORD pFunc;
VHardwareInt vhi;

virqdesc.VID_Hw_Int_Proc =
resolveOverride(&vhi,this,&VHardwareInt::OnHardwareInt);
virqdesc.VID_Virt_Int_Proc =
resolveOverride(&vhi,this,&VHardwareInt::OnVirtualInt);
virqdesc.VID_EOI_Proc =
resolveOverride(&vhi,this,&VHardwareInt::OnVirtualEOI);
virqdesc.VID_Mask_Change_Proc =
resolveOverride(&vhi,this,(VOID (VHardwareInt::*)(VMHANDLE))&VHardwareInt::OnVirtualMask);
virqdesc.VID_IRET_Proc =
resolveOverride(&vhi,this,&VHardwareInt::OnVirtualIRET);

virqdesc.VID_IRET_Time_Out = m_timeout;
virqdesc.VID_Options = m_flags;
virqdesc.VID_IRQ_Number = m_irq;

if (virqdesc.VID_Hw_Int_Proc == 0)// if no override for hw_int handler
return FALSE;

createHWIThunk(this, m_thunk, &virqdesc);

m_handle = VPICD_Virtualize_IRQ((PVID) &virqdesc);
if (m_handle == 0)
{
DEBUGEVENT(DBG_WARNING, \"Failed to virtualize hardware int\");
}

return (m_handle != 0);
}