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dpavlin |
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/* |
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* Cisco C7200 (Predator) RAM emulation |
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* Copyright (c) 2006 Christophe Fillot. All rights reserved. |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include <errno.h> |
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#include <unistd.h> |
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#include "mips64.h" |
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#include "dynamips.h" |
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#include "memory.h" |
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#include "device.h" |
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/* RAM private data */ |
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struct ram_data { |
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vm_obj_t vm_obj; |
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struct vdevice *dev; |
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char *filename; |
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}; |
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/* Shutdown a RAM device */ |
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void dev_ram_shutdown(vm_instance_t *vm,struct ram_data *d) |
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{ |
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if (d != NULL) { |
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/* Remove the device */ |
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dev_remove(vm,d->dev); |
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free(d->dev); |
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/* Remove filename used to virtualize RAM */ |
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if (d->filename) { |
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unlink(d->filename); |
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free(d->filename); |
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} |
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/* Free the structure itself */ |
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free(d); |
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} |
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} |
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/* Initialize a RAM zone */ |
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int dev_ram_init(vm_instance_t *vm,char *name,int use_mmap, |
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m_uint64_t paddr,m_uint32_t len) |
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{ |
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struct ram_data *d; |
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/* allocate the private data structure */ |
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if (!(d = malloc(sizeof(*d)))) { |
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fprintf(stderr,"RAM: unable to create device.\n"); |
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return(-1); |
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} |
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memset(d,0,sizeof(*d)); |
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vm_object_init(&d->vm_obj); |
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d->vm_obj.name = name; |
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d->vm_obj.data = d; |
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d->vm_obj.shutdown = (vm_shutdown_t)dev_ram_shutdown; |
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if (use_mmap && !(d->filename = vm_build_filename(vm,name))) { |
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fprintf(stderr,"RAM: unable to create filename.\n"); |
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goto err_filename; |
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} |
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if (!(d->dev = dev_create_ram(vm,name,d->filename,paddr,len))) { |
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fprintf(stderr,"RAM: unable to create device.\n"); |
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goto err_dev_create; |
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} |
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vm_object_add(vm,&d->vm_obj); |
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return(0); |
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err_dev_create: |
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free(d->filename); |
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err_filename: |
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free(d); |
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return(-1); |
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} |