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/* intelmetool */
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "mmap.h"
#include <errno.h>
#include <string.h>
#ifndef __DARWIN__
int fd_mem;
void *map_physical_exact(off_t phys_addr, void *mapto, size_t len)
{
void *virt_addr;
int err;
virt_addr = mmap(mapto, len, PROT_WRITE | PROT_READ,
MAP_SHARED | MAP_FIXED, fd_mem, phys_addr);
if (virt_addr == MAP_FAILED) {
err = errno;
printf("Error mapping physical memory 0x%016jd [0x%zx] ERRNO=%d %s\n",
(intmax_t)phys_addr, len, err, strerror(err));
return NULL;
}
return virt_addr;
}
void *map_physical(off_t phys_addr, size_t len)
{
void *virt_addr;
int err;
virt_addr = mmap(NULL, len, PROT_WRITE | PROT_READ, MAP_SHARED, fd_mem, phys_addr);
if (virt_addr == MAP_FAILED) {
err = errno;
printf("Error mapping physical memory 0x%016jd [0x%zx] ERRNO=%d %s\n",
(intmax_t)phys_addr, len, err, strerror(err));
return NULL;
}
return virt_addr;
}
void unmap_physical(void *virt_addr, size_t len)
{
munmap(virt_addr, len);
}
#endif
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