60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/*
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* Copyright (C) yajin 2008 <yajinzhou@gmail.com >
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*
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* This file is part of the virtualmips distribution.
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* See LICENSE file for terms of the license.
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*
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*/
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#define _GNU_SOURCE
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include<sys/types.h>
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#include<sys/stat.h>
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#include<string.h>
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#include "vm.h"
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#include "mips_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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struct vdevice *dev;
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};
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void dev_ram_reset (cpu_mips_t * cpu, struct vdevice *dev)
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{
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assert (dev->host_addr != 0);
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/*reset ram */
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memset ((unsigned char *) dev->host_addr, 0x0, dev->phys_len);
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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, m_pa_t paddr,
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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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if (!(d->dev = dev_create_ram (vm, name, 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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d->dev->priv_data = d;
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d->dev->reset_handler = dev_ram_reset;
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return (0);
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err_dev_create:
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free (d);
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return (-1);
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}
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