* Zachary Amsden <zach@xxxxxxxxxx> wrote: > gdt = get_cpu_gdt_table(cpu); > save_desc_40 = gdt[0x40 / 8]; > - gdt[0x40 / 8] = bad_bios_desc; > + gdt[0x40 / 8] = gdt[GDT_ENTRY_BAD_BIOS_CACHE]; > i like the cleanup, but wouldnt it be simpler to dedicate GDT entry #8 to the 0x40 descriptor, and hence be compatible with such broken BIOSes by default? Right now entry #8 is taken up by TLS segment #2, but we could change GDT_ENTRY_TLS_MIN from 6 to 9 and push the TLS segments to entries 9,10,11. [ Could there be any buggy SMM code that relies on having something at 0x40? ] Ingo
