/[dynamips]/upstream/dynamips-0.2.6-RC3/dev_ram.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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Contents of /upstream/dynamips-0.2.6-RC3/dev_ram.c

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Revision 1 - (show annotations)
Sat Oct 6 16:01:44 2007 UTC (12 years, 2 months ago) by dpavlin
Original Path: upstream/dynamips-0.2.5/dev_ram.c
File MIME type: text/plain
File size: 1750 byte(s)
import 0.2.5 from upstream

1 /*
2 * Cisco C7200 (Predator) RAM emulation
3 * Copyright (c) 2006 Christophe Fillot. All rights reserved.
4 */
5
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <string.h>
9 #include <time.h>
10 #include <errno.h>
11 #include <unistd.h>
12
13 #include "mips64.h"
14 #include "dynamips.h"
15 #include "memory.h"
16 #include "device.h"
17
18 /* RAM private data */
19 struct ram_data {
20 vm_obj_t vm_obj;
21 struct vdevice *dev;
22 char *filename;
23 };
24
25 /* Shutdown a RAM device */
26 void dev_ram_shutdown(vm_instance_t *vm,struct ram_data *d)
27 {
28 if (d != NULL) {
29 /* Remove the device */
30 dev_remove(vm,d->dev);
31 free(d->dev);
32
33 /* Remove filename used to virtualize RAM */
34 if (d->filename) {
35 unlink(d->filename);
36 free(d->filename);
37 }
38
39 /* Free the structure itself */
40 free(d);
41 }
42 }
43
44 /* Initialize a RAM zone */
45 int dev_ram_init(vm_instance_t *vm,char *name,int use_mmap,
46 m_uint64_t paddr,m_uint32_t len)
47 {
48 struct ram_data *d;
49
50 /* allocate the private data structure */
51 if (!(d = malloc(sizeof(*d)))) {
52 fprintf(stderr,"RAM: unable to create device.\n");
53 return(-1);
54 }
55
56 memset(d,0,sizeof(*d));
57
58 vm_object_init(&d->vm_obj);
59 d->vm_obj.name = name;
60 d->vm_obj.data = d;
61 d->vm_obj.shutdown = (vm_shutdown_t)dev_ram_shutdown;
62
63 if (use_mmap && !(d->filename = vm_build_filename(vm,name))) {
64 fprintf(stderr,"RAM: unable to create filename.\n");
65 goto err_filename;
66 }
67
68 if (!(d->dev = dev_create_ram(vm,name,d->filename,paddr,len))) {
69 fprintf(stderr,"RAM: unable to create device.\n");
70 goto err_dev_create;
71 }
72
73 vm_object_add(vm,&d->vm_obj);
74 return(0);
75
76 err_dev_create:
77 free(d->filename);
78 err_filename:
79 free(d);
80 return(-1);
81 }

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