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/*
* Copyright (c) 2024 Free Software Foundation, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <i386at/mbinfo.h>
#include <mach/vm_param.h>
#include <vm/pmap.h>
#include <device/ds_routines.h>
static struct multiboot_raw_info mb_info;
void
mbinfo_register_boot_data(const struct multiboot_raw_info *mbi)
{
mb_info = *mbi;
}
io_return_t
mbinforead(dev_t dev, io_req_t ior)
{
int err;
/* Check if IO_COUNT is valid */
if (ior->io_count > sizeof(struct multiboot_raw_info))
return D_INVALID_SIZE;
err = device_read_alloc(ior, (vm_size_t)ior->io_count);
if (err != KERN_SUCCESS)
return (err);
memcpy ((uint8_t *)ior->io_data, &mb_info, ior->io_count);
ior->io_residual = 0;
return (D_SUCCESS);
}
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