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(2001-1c00-0c1e-bf00-d69d-5353-dba5-ee81.cable.dynamic.v6.ziggo.nl. [2001:1c00:c1e:bf00:d69d:5353:dba5:ee81]) by smtp.gmail.com with ESMTPSA id 1-20020a170906218100b00730b61d8a5esm12095627eju.61.2022.09.17.04.42.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 17 Sep 2022 04:42:14 -0700 (PDT) Message-ID: <5097a283-6111-bedc-13c6-61a581f8b72c@redhat.com> Date: Sat, 17 Sep 2022 13:42:13 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1 Subject: Re: [PATCH 0/3] Check enumeration before MSR save/restore Content-Language: en-US To: Pawan Gupta , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , "Rafael J. Wysocki" , Pavel Machek , Andrew Cooper Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Daniel Sneddon , antonio.gomez.iglesias@linux.intel.com References: <20220913005053.vk7qmhr6tqqynags@desk> From: Hans de Goede In-Reply-To: <20220913005053.vk7qmhr6tqqynags@desk> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 9/13/22 02:50, Pawan Gupta wrote: > On Mon, Sep 12, 2022 at 04:38:44PM -0700, Pawan Gupta wrote: >> Hi, >> >> This patchset is to fix the "unchecked MSR access error" [1] during S3 >> resume. Patch 1/3 adds a feature bit for MSR_IA32_TSX_CTRL. >> >> Patch 2/3 adds a feature bit for MSR_AMD64_LS_CFG. >> >> Patch 3/3 adds check for feature bit before adding any speculation >> control MSR to the list of MSRs to save/restore. >> >> [1] https://lore.kernel.org/lkml/20220906201743.436091-1-hdegoede@redhat.com/ > > Added the correct email-id of Hans de Goede . I have tested this series and I can confirm that it fixes the exception which I was seeing on a Packard Bell Dot SC with an Atom N2600 CPU: Tested-by: Hans de Goede Regards, Hans