Messages in this thread | | | Date | Tue, 6 Mar 2007 14:26:13 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 1/8] Remove cpu_gdt_table: use boot_gdt_table until migration to per-cpu |
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* Ingo Molnar <mingo@elte.hu> wrote:
> > + .quad 0x00cf9a000000ffff /* boot: 4GB code at 0x00000000 */ > > + .quad 0x00cf92000000ffff /* boot: 4GB data at 0x00000000 */ > > .quad 0x0000000000000000 /* 0x20 unused */ > > .quad 0x0000000000000000 /* 0x28 unused */ > > .quad 0x0000000000000000 /* 0x33 TLS entry 1 */ > > actually, the reason for the small boot GDT was that some systems > wouldnt even boot with a larger GDT. (there was some BIOS interaction, > forgot what it was - iirc it was mach-visws and also some other older > box) > > the 'simplification' you do here is actually how Linux worked before > it was fixed for those systems. > > so i'd be quite nervous to touch this area of the GDT code. (I'd > support a renaming though, gdt_table is indeed ugly.)
and this seems to have a ripple effect on the rest of your GDT changes - i'll wait for this to be cleared before doing a line by line review of them. I commented on the mostly-unaffected ones already.
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