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Subject: Re: x2apic boot failure on recent sandy bridge system
From: Suresh Siddha <suresh.b.siddha@intel.com>
Reply-To: Suresh Siddha <suresh.b.siddha@intel.com>
To: Yinghai Lu <yinghai@kernel.org>
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        "H. Peter Anvin" <hpa@zytor.com>
Date: Mon, 12 Dec 2011 17:41:15 -0800
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On Mon, 2011-12-12 at 17:29 -0800, Yinghai Lu wrote:
> but i don't think bios buy can go that far to enable intr-remapping
> without providing DMAR.

We never know. And also It is not just bios. kexec'd kernel with out the
interrupt-remapping support will also run into this issue and we should
handle this also gracefully.

thanks,
suresh