sev_subinfo_t
sev_subinfo_t *subp;
len = SE_ALIGN(offsetof(sev_subinfo_t, sb_strings) + idlen +
subp = (sev_subinfo_t *)cpaddr;
subp->sb_stroff = offsetof(sev_subinfo_t, sb_strings);
sev_subinfo_t cd_subinfo[1]; /* Per subscriber data */