linux-kernel - Re: [PATCH v4 0/3] arch/x86: Enable MPK feature on AMD

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Message-ID: <a60b3f06-4db4-38d9-b3aa-bcd27712e42b@amd.com>
Date:   Wed, 13 May 2020 11:00:01 -0500
From:   Babu Moger <babu.moger@....com>
To:     Paolo Bonzini <pbonzini@...hat.com>, corbet@....net,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        sean.j.christopherson@...el.com
Cc:     x86@...nel.org, vkuznets@...hat.com, wanpengli@...cent.com,
        jmattson@...gle.com, joro@...tes.org, dave.hansen@...ux.intel.com,
        luto@...nel.org, peterz@...radead.org, mchehab+samsung@...nel.org,
        changbin.du@...el.com, namit@...are.com, bigeasy@...utronix.de,
        yang.shi@...ux.alibaba.com, asteinhauser@...gle.com,
        anshuman.khandual@....com, jan.kiszka@...mens.com,
        akpm@...ux-foundation.org, steven.price@....com,
        rppt@...ux.vnet.ibm.com, peterx@...hat.com,
        dan.j.williams@...el.com, arjunroy@...gle.com, logang@...tatee.com,
        thellstrom@...are.com, aarcange@...hat.com, justin.he@....com,
        robin.murphy@....com, ira.weiny@...el.com, keescook@...omium.org,
        jgross@...e.com, andrew.cooper3@...rix.com,
        pawan.kumar.gupta@...ux.intel.com, fenghua.yu@...el.com,
        vineela.tummalapalli@...el.com, yamada.masahiro@...ionext.com,
        sam@...nborg.org, acme@...hat.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH v4 0/3] arch/x86: Enable MPK feature on AMD



On 5/13/20 10:35 AM, Paolo Bonzini wrote:
> On 13/05/20 01:58, Babu Moger wrote:
>> AMD's next generation of EPYC processors support the MPK (Memory
>> Protection Keys) feature.
>>
>> This series enables the feature on AMD and updates config parameters
>> and documentation to reflect the MPK support on x86 platforms.
>>
>> AMD documentation for MPK feature is available at "AMD64 Architecture
>> Programmer’s Manual Volume 2: System Programming, Pub. 24593 Rev. 3.34,
>> Section 5.6.6 Memory Protection Keys (MPK) Bit".
>>
>> The documentation can be obtained at the link below:
> 
> I'm queuing patches 2 and 3, since they are do not need any support in
> common code.

Thanks Paolo. I will just resubmit the patch #1 addressing Dave's feedback.