On 12/18/2012 09:49 AM, Yinghai Lu wrote: > > So you need to make cpuid show does not support x2apic --- check with > intel they have way to do that. >
No, but there is a flag in ACPI that "this BIOS is broken with x2APIC". Setting that flag as opposed to fixing the bugs, though is very much not recommended, however; the lack of interrupt routing means there are ways for a rogue device to compromise the security provided by VT-d, see: http://www.invisiblethingslab.com/resources/2011/Software%20Attacks%20on%20Intel%20VT-d.pdf -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
