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Date: Sun, 20 Jan 2008 10:54:10 -0800 From: "H. Peter Anvin" <hpa@...or.com> To: Andi Kleen <andi@...stfloor.org> CC: Ian Campbell <ijc@...lion.org.uk>, linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "Eric W. Biederman" <ebiederm@...ssion.com> Subject: Re: [PATCH] x86: Construct 32 bit boot time page tables in native format. Andi Kleen wrote: >>> There are various loaders (kexec, elilo, ...) that skip the 16bit code >>> and jump directly to 32bit head.S. So in theory those could hit it. >>> But still having the loop only is probably fine. >>> >> It's probably just as well, since we don't really know how to get a >> message out in such an environment anyway... > > It would be robably possible to extend the 32bit protocol to some > way to error out in such a case. On the other hand I'm not sure it's really > worth the considerable work to implement and debug such an addition. > >>>> variant of make_pte now though. >>> The 32bit cast still feels unclean. After all the PTE is not 32bit. >> No, but (pte_t *) is 32 bits. To be more "Linuxy" it probably should be >> (long) or (unsigned long) though. > > That's not 32bit either. Looked at the subject line? -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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