linux-kernel - Re: [PATCH v8 3/9] Documentation/x86: Add documentation for SVA (Shared Virtual Addressing)

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Date:   Thu, 17 Sep 2020 19:18:49 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Raj, Ashok" <ashok.raj@...el.com>
Cc:     Fenghua Yu <fenghua.yu@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, H Peter Anvin <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Christoph Hellwig <hch@...radead.org>,
        Peter Zijlstra <peterz@...radead.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Tony Luck <tony.luck@...el.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Jacob Jun Pan <jacob.jun.pan@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Sohil Mehta <sohil.mehta@...el.com>,
        Ravi V Shankar <ravi.v.shankar@...el.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        x86 <x86@...nel.org>, iommu@...ts.linux-foundation.org
Subject: Re: [PATCH v8 3/9] Documentation/x86: Add documentation for SVA
 (Shared Virtual Addressing)

On Thu, Sep 17, 2020 at 07:56:09AM -0700, Raj, Ashok wrote:
> Just tweaked it a bit: 
> 
> "When ATS lookup fails for a virtual address, device should use PRI in
> order to request the virtual address to be paged into the CPU page tables.
> The device must use ATS again in order the fetch the translation again
> before use"

Thanks, amended.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette