System Control Messages

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#285

From: ikoo
Date: Tue, 04 Aug 1998 00:00

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SYSTEM CONTROL MESSAGES


The VMM sends system control messages to a virtual device to notify it of changes that
affect the system and virtual machines. Most virtual devices need to track the creation
and status of virtual machines, so the VMM sends messages to whenever a virtual machine is created, i
initialized, or terminated. It also sends a
message when the execution focus movesto or from the virtual machine, or when the
virtual shell device needs to display a message box to  the user.

The following is a list of the most common messages and recommendations for how the
virtual devices should process the messages:
(I omite the explanation)

Begin_Message_Mode
Create_VM
Debug_Query
Destroy_VM
Device_Init
End_Message_Mode
Init_Complete
Query_Destroy
Reboot_Processor
Set_Device_Focus
Sys_Critical_Exit
Sys_Critical_Init
Sys_VM_Init
Sys_VM_Terminate
System_Exit
VM_Critical_Init
VM_Init
VM_Not_Executeable
VM_Resume
VM_Suspend
VM_Terminate

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From: ikoo.bbs@bbs.nease.net (ikoo)
Subject: System Control Messages
Date: 1998/08/04
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