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include bimodint.inc
 
Bimodal_Int_Struc       STRUC
BIS_IRQ_Number          dw      ?
BIS_VM_ID               dw      0
BIS_Next                dd      ?
BIS_Reserved1           dd      ?
BIS_Reserved2           dd      ?
BIS_Reserved3           dd      ?
BIS_Reserved4           dd      ?
BIS_Flags               dd      0
BIS_Mode                dw      0
BIS_Entry               dw      ?
BIS_Control_Proc        dw      ?
                        dw      ?
BIS_User_Mode_API       dd      ?
BIS_Super_Mode_API      dd      ?
BIS_User_Mode_CS        dw      ?
BIS_User_Mode_DS        dw      ?
BIS_Super_Mode_CS       dw      ?
BIS_Super_Mode_DS       dw      ?
BIS_Descriptor_Count    dw      ?
Bimodal_Int_Struc       ENDS
 
The Bimodal_Int_Struc structure contains information for a bimodal
interrupt.
 
Member                Description
────────────────────────────────────────────────────────────────────────────
 
BIS_IRQ_Number        Specifies the IRQ number.
 
BIS_VM_ID             Specifies the handle identifying the virtual machine;
                      this field is used by the virtual PIC device.
 
BIS_Next              Points to the next Bimodal_Int_Struc structure in this
                      chain.
 
BIS_Reserved1         Reserved for IRQ handle; this field is used by the
                      virtual PIC device.
 
BIS_Reserved2         Reserved for BIS address; this field is used by the
                      virtual PIC device.
 
BIS_Reserved3         Reserved.
 
BIS_Reserved4         Reserved.
 
BIS_Flags             Specifies the bimodal interrupt flags. It must be 0.
 
BIS_Mode              Specifies user or supervisor mode. It is 0 for user
                      mode; 4 for supervisor mode.
 
BIS_Entry             Specifies the offset to the interrupt service routine
                      for this interrupt.
 
BIS_Control_Proc      Specifies the offset to the control procedure for this
                      interrupt.
 
BIS_User_Mode_API     Points to the user-mode API procedure for this
                      interrupt. The procedure must check for and carry out
                      the following functions:
 
                      Function           Description
                      ──────────────────────────────────────────────────────
                      BIH_API_EOI        End interrupt.
 
                      BIH_API_Mask       Mask the physical IRQ.
 
                      BIH_API_Unmask     Unmask the physical IRQ.
 
                      BIH_API_Get_Mask   Retrieve the mask state of the
                                         physical IRQ.
 
                      BIH_API_Get_IRR    Retrieve the set state of the
                                         physical IRQ.
 
                      BIH_API_Get_ISR    Retrieve service state of the
                                         physical IRQ.
 
                      BIH_API_Call_Back  Calls specified callback procedure
                                         when given virtual machine runs.
 
BIS_Super_Mode_API    Points to the supervisor-mode API procedure for this
                      interrupt; this field is set by the virtual PIC
                      device.
 
BIS_User_Mode_CS      Specifies the selector for the user-mode code segment
                      for the interrupt handler.
 
BIS_User_Mode_DS      Specifies the selector for the user-mode data segment
                      for the interrupt handler.
 
BIS_Super_Mode_CS     Specifies the selector for the supervisor-mode code
                      segment for the interrupt handler; this field is set
                      by the virtual PIC device.
 
BIS_Super_Mode_DS     Specifies the selector for the supervisor-mode data
                      segment for the interrupt handler; this field is set
                      by the virtual PIC device.
 
BIS_Descriptor_Count  Specifies the number of additional EBIS_Sel_Struc
                      structures immediately following this structure.
 
See Also
 
VPICD_Install_Handler, VPICD_Remove_Handler, EBIS_Sel_Struc
 
 
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