GB
#define MAXB GB /* No tera, peta, nor exa. */
max = MAXB / GB;
mul = GB;
warnx("maximum blocksize is %dG", MAXB / GB);
vmc->vmc_memranges[5].vmr_gpa = GB(4);
off = GB(4) - size;
else if (vmc->vmc_memranges[i].vmr_gpa == GB(4))