Function map_physical_exact

util/intelmetool/src/mmap.c:11–27

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%016jx [0x%zx] ERRNO=%d %s\n",
		       (uintmax_t)phys_addr, len, err, strerror(err));
		return NULL;
	}

	return virt_addr;
}

void *map_physical(off_t phys_addr, size_t len)
{