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https://github.com/Motorhead1991/qemu.git
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6997f26d0d
MacOS attempts a series of writes and reads over the entire RAM area in order to determine the amount of RAM within the machine. Allow accesses to the entire RAM area ignoring writes and always reading zero for areas where there is no physical RAM installed to allow MacOS to detect the memory size without faulting. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-ID: <20231004083806.757242-7-mark.cave-ayland@ilande.co.uk> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* QEMU Motorla 680x0 Macintosh hardware System Emulator
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef HW_Q800_H
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#define HW_Q800_H
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#include "hw/boards.h"
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#include "qom/object.h"
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#include "target/m68k/cpu-qom.h"
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#include "exec/memory.h"
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#include "hw/m68k/q800-glue.h"
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#include "hw/misc/mac_via.h"
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#include "hw/net/dp8393x.h"
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#include "hw/char/escc.h"
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#include "hw/or-irq.h"
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#include "hw/scsi/esp.h"
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#include "hw/block/swim.h"
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#include "hw/nubus/mac-nubus-bridge.h"
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#include "hw/display/macfb.h"
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#include "hw/misc/djmemc.h"
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#include "hw/misc/iosb.h"
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/*
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* The main Q800 machine
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*/
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struct Q800MachineState {
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MachineState parent_obj;
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M68kCPU cpu;
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MemoryRegion rom;
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GLUEState glue;
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MOS6522Q800VIA1State via1;
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MOS6522Q800VIA2State via2;
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dp8393xState dp8393x;
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ESCCState escc;
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OrIRQState escc_orgate;
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SysBusESPState esp;
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Swim swim;
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MacNubusBridge mac_nubus_bridge;
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MacfbNubusState macfb;
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DJMEMCState djmemc;
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IOSBState iosb;
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MemoryRegion ramio;
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MemoryRegion macio;
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MemoryRegion macio_alias;
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MemoryRegion machine_id;
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};
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#define TYPE_Q800_MACHINE MACHINE_TYPE_NAME("q800")
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OBJECT_DECLARE_SIMPLE_TYPE(Q800MachineState, Q800_MACHINE)
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#endif
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