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Message-ID: <86802c440806182335i6434a7ecj512dae852c4a41eb@mail.gmail.com> Date: Wed, 18 Jun 2008 23:35:58 -0700 From: "Yinghai Lu" <yhlu.kernel@...il.com> To: "H. Peter Anvin" <hpa@...or.com> Cc: "Len Brown" <lenb@...nel.org>, "Ingo Molnar" <mingo@...e.hu>, "Thomas Gleixner" <tglx@...utronix.de>, "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 11:28 PM, H. Peter Anvin <hpa@...or.com> wrote: > Yinghai Lu wrote: >>> >>> Can somebody clue me into why this concept >>> is something other than totally insane? >> >> for system that have 6 pcie slots and more, with full populated cards. >> when boot with mptable, BIOS will use irq < 16 for all pci devices, >> and several devices will share same irq. >> but when acpi is enabled, irqs are spanned all over. >> >> also when pci card with several pci bridges is plugged in, the mptable >> is totally messed up, some slot will work, and some doesn't work. > > And the reason to worry about supporting non-ACPI on such hardware is what? 1. some other os doesn't support acpi well, and still use mptable. 2. show BIOS engineer how to fix mptable. 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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