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include vmm.inc
 
mov     eax, Interrupt      ; interrupt number
VMMcall Simulate_Int
 
The Simulate_Int service simulates an interrupt in the current virtual
machine. The service first calls any hook procedures set by the
Hook_V86_Int_Chain service. If no hook procedure services the interrupt,
this service pushes the Client_Flags, Client_CS, and Client_IP registers on
the stack of the current virtual machine. When the virtual machine resumes
execution (such as when an Resume_Exec service is called), the system
carries out the simulated interrupt and executes the corresponding V86 mode
interrupt routine.
 
The virtual PIC device uses this service to simulate hardware interrupts.
Other virtual devices use the Exec_Int service to simulate interrupts.
 
Parameter  Description
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Interrupt  Specifies the number of the interrupt to simulate.
 
Return Value
 
This service has no return value.
 
Comments
 
If the virtual machine is currently in V86 mode, this service simulates a
V86 interrupt. Otherwise, the service simulates a protected-mode interrupt.
Simulating an interrupt in a virtual machine running a protected-mode
application can have undesirable effects if the corresponding interrupt
attempts to reflect the interrupt to V86 mode.
 
Virtual devices that need immediate execution of an interrupt should use the
Exec_Int service in a nested execution block.
 
Uses
 
Client_CS, Client_EIP, Client_Flags, Flags
 
See Also
 
Exec_Int
 
 
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