; $Id$

;; @file

; VMMGC - Raw-mode Context Assembly Macros.

;

;

; Copyright (C) 2006-2007 Oracle Corporation

;

; This file is part of VirtualBox Open Source Edition (OSE), as

; available from http://www.virtualbox.org. This file is free software;

; you can redistribute it and/or modify it under the terms of the GNU

; General Public License (GPL) as published by the Free Software

; Foundation, in version 2 as it comes in the "COPYING" file of the

; VirtualBox OSE distribution. VirtualBox OSE is distributed in the

; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.

;

%ifndef __VMMGC_mac__

%define __VMMGC_mac__

%include "VBox/asmdefs.mac"

;; @def VMMR0_SEG

; Set the output segment to one of the special VMMR0 segments.

; @param %1 The segment name.

; @remark Use BEGINCODE to switch back to the code segment.

%ifdef ASM_FORMAT_OMF

%macro VMMR0_SEG 1

segment VMMR0.%1 public CLASS=CONST align=1 use32

%endmacro

%define VMMR0_SEG_DEFINED

%endif

%ifdef ASM_FORMAT_ELF

%macro VMMR0_SEG 1

%ifndef DEFINED_VMMR0_SEG.%1

%define DEFINED_VMMR0_SEG.%1 1

[section .VMMR0.%1 progbits alloc noexec nowrite align=1 ]

%else

[section .VMMR0.%1 align=1 ]

%endif

%endmacro

%define VMMR0_SEG_DEFINED

%endif

%ifdef ASM_FORMAT_MACHO

%ifdef __YASM__

%macro VMMR0_SEG 1

%ifndef DEFINED_VMMR0_SEG.%1

%define DEFINED_VMMR0_SEG.%1 1

[section VMMR0 %1 align=1 ]

%else

[section VMMR0 %1 ]

%endif

%endmacro

%else

%macro VMMR0_SEG 1

[section VMMR0.%1 rdata align=1 ]

%endmacro

%endif

%define VMMR0_SEG_DEFINED

%endif

%ifdef ASM_FORMAT_PE

%macro VMMR0_SEG 1

[section .rdata$VMMR0.%1 align=1 ]

%endmacro

%define VMMR0_SEG_DEFINED

%endif

%ifndef VMMR0_SEG_DEFINED

%error "VMMR0_SEG / ASM_FORMAT_xxx"

%endif

;; @def TRPM_HANDLER

; Sets up a trap handler.

;

; @param %1 The segment name.

; @param %2 The end address. Use 0 to just handle one instruction.

; @param %3 Address of the handler function.

; @param %4 The user data member.

%macro TRPM_HANDLER 4

VMMR0_SEG %1 ; switch to the record segment.

dd %%current_instr ; uStartEip

dd %2 ; uEndEip

dd %3 ; pfnHandler

dd %4 ; pvUser

BEGINCODE ; back to the code segment.

%%current_instr:

%endmacro

;; @def TRPM_NP_HANDLER

; Sets up a segment not present fault handler for the current (=next) instruction.

;

; @param %1 Address of the handler function.

; @param %2 The user data member.

%macro TRPM_NP_HANDLER 2

TRPM_HANDLER Trap0b, 0, %1, %2

%endmacro

;; @def TRPM_GP_HANDLER

; Sets up a general protection fault handler for the current (=next) instruction.

;

; @param %1 Address of the handler function.

; @param %2 The user data member.

%macro TRPM_GP_HANDLER 2

TRPM_HANDLER Trap0d, 0, %1, %2

%endmacro

;; @def TRPM_PF_HANDLER

; Sets up a page fault handler for the current (=next) instruction.

;

; @param %1 Address of the handler function.

; @param %2 The user data member.

%macro TRPM_PF_HANDLER 2

TRPM_HANDLER Trap0e, 0, %1, %2

%endmacro

;; @def TRPM_NP_GP_HANDLER

; Sets up a segment not present fault and general protection fault handler

; for the current (=next) instruction.

;

; @param %1 Address of the handler function.

; @param %2 The user data member.

%macro TRPM_NP_GP_HANDLER 2

TRPM_HANDLER Trap0b, 0, %1, %2

TRPM_HANDLER Trap0d, 0, %1, %2

%endmacro

%endif