linux-kernel - Re: [PATCHv16 11/17] x86/mm/iommu/sva: Make LAM and SVA mutually exclusive

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Date:   Mon, 3 Apr 2023 13:27:02 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>, x86@...nel.org,
        Kostya Serebryany <kcc@...gle.com>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Alexander Potapenko <glider@...gle.com>,
        Taras Madan <tarasmadan@...gle.com>,
        "H . J . Lu" <hjl.tools@...il.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Rick Edgecombe <rick.p.edgecombe@...el.com>,
        Bharata B Rao <bharata@....com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Ashok Raj <ashok.raj@...el.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv16 11/17] x86/mm/iommu/sva: Make LAM and SVA mutually
 exclusive

On Mon, Apr 03, 2023 at 12:22:01PM +0200, Dmitry Vyukov wrote:
> Then I misunderstood what it means. Ignore.
> 
> While we are here:
> 
>         if (mm_valid_pasid(mm) &&
>             !test_bit(MM_CONTEXT_FORCE_TAGGED_SVA, &mm->context.flags))
>                 return -EINTR;
> 
> should be EINVAL?

Yes. My bad. Will fix.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov