Re: [PATCH 0/3] Check enumeration before MSR save/restore

[Hans de Goede]

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@xxxxxxxxxx/
> 
> Added the correct email-id of Hans de Goede <hdegoede@xxxxxxxxxx>.

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 <hdegoede@xxxxxxxxxx>

Regards,

Hans