On 11/20/2014 10:40 AM, Peter Maydell wrote: > On 20 November 2014 18:35, Mario Smarduch <m.smarduch@xxxxxxxxxxx> wrote: >> I think beyond consistency, there should be no double mappings with >> conflicting attributes at any time or CPU state is undefined. > > The situation is not so bleak as this. See section B2.9 "Mismatched > memory attributes" in the ARMv8 ARM ARM (DDI0487A.d), which lays > out in some detail what the results of mismatched attributes are > (generally, you lose ordering or coherency guarantees you might > have hoped to have). They're not pretty, but it's not as bad > as completely UNPREDICTABLE behaviour. > > thanks > -- PMM > Hi Peter, thanks for digging that up, quite a list to navigate but it does provide detailed guidance. - Mario -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
