* Andy Lutomirski:
>> I _believe_ there are also things like AES-NI that can get strong
>> protection from stuff like this. They load encryption keys into (AVX)
>> registers and then can do encrypt/decrypt operations without the keys
>> leaving the registers. If the key was loaded from a secret
On Fri, Aug 14, 2020 at 11:09 AM Dave Hansen wrote:
>
> On 8/14/20 10:46 AM, Andy Lutomirski wrote:
> > I'm a little unconvinced about the security benefits. As far as I
> > know, UC memory will not end up in cache by any means (unless
> > aliased), but it's going to be tough to do much with UC
On 8/14/20 10:46 AM, Andy Lutomirski wrote:
> I'm a little unconvinced about the security benefits. As far as I
> know, UC memory will not end up in cache by any means (unless
> aliased), but it's going to be tough to do much with UC data with
> anything resembling reasonable performance without
On Thu, Jan 30, 2020 at 8:23 AM Mike Rapoport wrote:
>
> Hi,
>
> This is essentially a resend of my attempt to implement "secret" mappings
> using a file descriptor [1].
>
> I've done a couple of experiments with secret/exclusive/whatever
> memory backed by a file-descriptor using a chardev and
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