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Date: Wed, 18 Jun 2008 15:32:59 -0700 From: "Yinghai Lu" <yhlu.kernel@...il.com> To: "Len Brown" <lenb@...nel.org> Cc: "Ingo Molnar" <mingo@...e.hu>, "Thomas Gleixner" <tglx@...utronix.de>, "H. Peter Anvin" <hpa@...or.com>, "Andrew Morton" <akpm@...ux-foundation.org>, "Eric W. Biederman" <ebiederm@...ssion.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] x86: update mptable v7 On Wed, Jun 18, 2008 at 3:18 PM, Len Brown <lenb@...nel.org> wrote: > > > On Sun, 1 Jun 2008, Yinghai Lu wrote: > >> >> make mptable to be consistent to acpi routing, so we could >> 1. kexec kernel with acpi=off >> 2. workaround BIOS that acpi routing is working, but mptable is not right. >> so can use kernel/kexec to start other os that doesn't have good acpi support > > Is this an effort to boot an ACPI-mode kernel, > and then kexec a non-ACPI kernel? Yes, > > Doing so could confuse the heck out of the platform firmware, > which will think that an ACPI-mode kernel is still running. > > Note that it is a historic artifact, now considered a bug, > that ACPI uses the MPS code. We should be divorcing these > two bodies of code rather than mixing them further. how about adding config option to not compile mptable related info? YH -- 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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