6c2def279e
must have limit 0xffff and attribute G = 0 (byte granularity) as well as other properties that they already had (see e.g., the Intel i486 manual section 22.5). Not restoring them broke Ctrl-Alt-Del in the bootstrap for my ASUS P55TP4XE system, probably because the Award BIOS does anti-tracing stuff involving inaccessible %esp's. asm.S: Don't use lret in prot_to_real(). This reduces the risk of using an incompletely intialized stack segment and saves space. Submitted by: "K.Higashino" <a00303@cc.hc.keio.ac.jp> (on 13 Jan 1995!) reworked by me |
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biosboot | ||
dosboot | ||
kzipboot | ||
netboot | ||
Makefile |