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Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI)

From	Khalid Aziz <khalid.aziz@oracle.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI)
Date	2016-03-07 23:40 +0100
Message-ID	<rabYK-uQ-19@gated-at.bofh.it> (permalink)
References	<ra7Ls-6kn-19@gated-at.bofh.it> <ra8Hw-6WP-5@gated-at.bofh.it> <raaT0-8gx-3@gated-at.bofh.it> <rab2F-8kT-5@gated-at.bofh.it>
Organization	Oracle Corp

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On 03/07/2016 02:34 PM, David Miller wrote:
> From: Khalid Aziz <khalid.aziz@oracle.com>
> Date: Mon, 7 Mar 2016 14:27:09 -0700
>
>> I agree with your point of view. PSTATE.mcde and TTE.mcd are set in
>> response to request from userspace. If userspace asked for them to be
>> set, they already know but it was the database guys that asked for
>> these two functions and they are the primary customers for the ADI
>> feature. I am not crazy about this idea since this extends the
>> mprotect API even further but would you consider using the return
>> value from mprotect to indicate if PSTATE.mcde or TTE.mcd were already
>> set on the given address?
>
> Well, that's the idea.
>
> If the mprotect using MAP_ADI or whatever succeeds, then ADI is
> enabled.
>
> Users can thus also pass MAP_ADI as a flag to mmap() to get ADI
> protection from the very beginning.
>

MAP_ADI has been sitting in my backlog for some time. Looks like you 
just raised its priority ;)

--
Khalid

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Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-06 05:10 +0100
  Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 16:10 +0100
    Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Rob Gardner <rob.gardner@oracle.com> - 2016-03-07 16:40 +0100
      Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 16:50 +0100
      Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) Andy Lutomirski <luto@amacapital.net> - 2016-03-07 16:50 +0100
        Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 17:10 +0100
          Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Dave Hansen <dave.hansen@linux.intel.com> - 2016-03-07 18:50 +0100
            Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) Andy Lutomirski <luto@amacapital.net> - 2016-03-07 19:00 +0100
              Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Dave Hansen <dave.hansen@linux.intel.com> - 2016-03-07 19:20 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 19:50 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) Andy Lutomirski <luto@amacapital.net> - 2016-03-07 20:00 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 20:30 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 20:50 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Dave Hansen <dave.hansen@linux.intel.com> - 2016-03-07 23:50 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Rob Gardner <rob.gardner@oracle.com> - 2016-03-08 02:40 +0100
            Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 22:10 +0100
              Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-08 21:00 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-08 21:20 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-08 21:30 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-08 22:10 +0100
    Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 17:50 +0100
      Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 19:00 +0100
    Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 18:00 +0100
      Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) Andy Lutomirski <luto@amacapital.net> - 2016-03-07 19:10 +0100
        Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 19:30 +0100
          Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) Andy Lutomirski <luto@amacapital.net> - 2016-03-07 20:00 +0100
            Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 20:30 +0100
            Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 20:50 +0100
              Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) Andy Lutomirski <luto@amacapital.net> - 2016-03-07 21:00 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 21:50 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 22:00 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) Andy Lutomirski <luto@amacapital.net> - 2016-03-07 22:10 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 22:20 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) James Morris <james.l.morris@oracle.com> - 2016-03-08 00:40 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) James Morris <james.l.morris@oracle.com> - 2016-03-08 01:00 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) James Morris <james.l.morris@oracle.com> - 2016-03-08 10:40 +0100
      Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 19:10 +0100
        Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Rob Gardner <rob.gardner@oracle.com> - 2016-03-07 19:20 +0100
          Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 19:30 +0100
            Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 20:20 +0100
              Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 22:40 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 22:40 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Rob Gardner <rob.gardner@oracle.com> - 2016-03-08 00:20 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-08 05:20 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Rob Gardner <rob.gardner@oracle.com> - 2016-03-08 00:20 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-08 00:30 +0100
              Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-08 01:30 +0100
                Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-08 05:30 +0100
            Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Rob Gardner <rob.gardner@oracle.com> - 2016-03-08 00:40 +0100
        Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 20:10 +0100
          Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 22:30 +0100
            Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) David Miller <davem@davemloft.net> - 2016-03-07 22:40 +0100
              Re: [PATCH v2] sparc64: Add support for Application Data Integrity  (ADI) Khalid Aziz <khalid.aziz@oracle.com> - 2016-03-07 23:40 +0100

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