On 13.08.19 16:54, Cornelia Huck wrote:
> On Mon, 12 Aug 2019 13:27:36 +0200
> David Hildenbrand <[email protected]> wrote:
> 
>> Any access sets the reference bit. In case we have a read-fault, we
>> should not allow writes to the TLB entry if the change bit was not
>> already set.
>>
>> This is a preparation for proper storage-key reference/change bit handling
>> in TCG and a fix for KVM whereby read accesses would set the change
>> bit (old KVM versions without the ioctl to carry out the translation).
> 
> That would be really old kvm versions, right? So no real need to e.g.
> cc:stable?

Yes - nothing a distribution ever supported AFAIK.

-- 

Thanks,

David / dhildenb

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