/[gxemul]/trunk/src/machines/machine_qemu.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 31 by dpavlin, Mon Oct 8 16:20:40 2007 UTC revision 32 by dpavlin, Mon Oct 8 16:20:58 2007 UTC
# Line 25  Line 25 
25   *  SUCH DAMAGE.   *  SUCH DAMAGE.
26   *     *  
27   *   *
28   *  $Id: machine_qemu.c,v 1.4 2006/08/12 19:31:36 debug Exp $   *  $Id: machine_qemu.c,v 1.5 2006/09/04 02:32:00 debug Exp $
29   *   *
30   *  This file contains semi-bogus machine descriptions for experimental   *  This file contains semi-bogus machine descriptions for experimental
31   *  machines, mimicing those emulated by Fabrice Bellard's QEMU.   *  machines, mimicing those emulated by Fabrice Bellard's QEMU.
# Line 47  Line 47 
47  #include "misc.h"  #include "misc.h"
48    
49    
50    /*****************************************************************************/
51    
52    
53    MACHINE_SETUP(qemu_arm)
54    {
55            /*
56             *  The ARM machine in QEMU isn't really a bogus machine, I think.
57             *  It is supposed to emulate a specific ARM board. But for now,
58             *  treat it as "QEMU ARM".
59             */
60    
61            machine->machine_name = "QEMU ARM";
62            cpu->byte_order = EMUL_LITTLE_ENDIAN;
63    
64            device_add(machine, "ns16550 addr=0x16000000");
65    
66            if (!machine->prom_emulation)
67                    return;
68    
69            /*
70             *  QEMU's ARM emulation mode uses the following hardcoded addresses:
71             *
72             *      0x00000100 = kernel boot arguments
73             *      0x00010000 = kernel load address
74             *      0x00800000 = initrd load address
75             *
76             *  QEMU's arm_boot.c puts these values at 0x100:
77             *
78             *  TODO: Yuck. Don't hardcode these.
79             */
80    
81            store_32bit_word(cpu, 0x100, 5);
82            store_32bit_word(cpu, 0x104, 0x54410001);
83            store_32bit_word(cpu, 0x108, 1);
84            store_32bit_word(cpu, 0x10c, 0x1000);
85            store_32bit_word(cpu, 0x110, 0);
86            store_32bit_word(cpu, 0x114, 4);
87            store_32bit_word(cpu, 0x118, 0x54410002);
88            store_32bit_word(cpu, 0x11c, machine->physical_ram_in_mb * 1048576);
89            store_32bit_word(cpu, 0x120, 0);
90            /*  TODO: 0x54410009 for the kernel command line args  */
91    
92            /*
93             *  board ids:
94             *      0x25e for "AB", 0x183 for "PB".
95             */
96    
97            cpu->cd.arm.r[0] = 0x5e;        /*  low byte of board id  */
98            cpu->cd.arm.r[1] = 0x02;        /*  high byte of board id  */
99            cpu->cd.arm.r[5] = 0x100;       /*  address of boot args  */
100            cpu->cd.arm.r[6] = 0x10000;     /*  address of loaded kernel  */
101    }
102    
103    
104    MACHINE_DEFAULT_CPU(qemu_arm)
105    {
106            /*  TODO: ARM926EJ-S  */
107            machine->cpu_name = strdup("ARM922T");
108    }
109    
110    
111    MACHINE_DEFAULT_RAM(qemu_arm)
112    {
113            machine->physical_ram_in_mb = 64;
114    }
115    
116    
117    MACHINE_REGISTER(qemu_arm)
118    {
119            MR_DEFAULT(qemu_arm, "QEMU ARM", ARCH_ARM, MACHINE_QEMU_ARM);
120            me->set_default_ram = machine_default_ram_qemu_arm;
121            machine_entry_add_alias(me, "qemu_arm");
122    }
123    
124    
125    /*****************************************************************************/
126    
127    
128  MACHINE_SETUP(qemu_mips)  MACHINE_SETUP(qemu_mips)
129  {  {
130          machine->machine_name = "QEMU MIPS";          machine->machine_name = "QEMU MIPS";
# Line 90  MACHINE_DEFAULT_CPU(qemu_mips) Line 168  MACHINE_DEFAULT_CPU(qemu_mips)
168    
169    
170  MACHINE_DEFAULT_RAM(qemu_mips)  MACHINE_DEFAULT_RAM(qemu_mips)
171  {        {
172          machine->physical_ram_in_mb = 64;          machine->physical_ram_in_mb = 64;
173  }  }
174    
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