Re: [PATCH v6 00/12] SVM cleanup and INVPCID feature support

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On 1/20/21 3:45 PM, Babu Moger wrote:
> 
> 
> On 1/20/21 3:14 PM, Jim Mattson wrote:
>> On Tue, Jan 19, 2021 at 3:45 PM Babu Moger <babu.moger@xxxxxxx> wrote:
>>>
>>>
>>>
>>> On 1/19/21 5:01 PM, Jim Mattson wrote:
>>>> On Mon, Sep 14, 2020 at 11:33 AM Babu Moger <babu.moger@xxxxxxx> wrote:
>>>>
>>>>> Thanks Paolo. Tested Guest/nested guest/kvm units tests. Everything works
>>>>> as expected.
>>>>
>>>> Debian 9 does not like this patch set. As a kvm guest, it panics on a
>>>> Milan CPU unless booted with 'nopcid'. Gmail mangles long lines, so
>>>> please see the attached kernel log snippet. Debian 10 is fine, so I
>>>> assume this is a guest bug.
>>>>
>>>
>>> We had an issue with PCID feature earlier. This was showing only with SEV
>>> guests. It is resolved recently. Do you think it is not related that?
>>> Here are the patch set.
>>> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Fkvm%2F160521930597.32054.4906933314022910996.stgit%40bmoger-ubuntu%2F&amp;data=04%7C01%7CBabu.Moger%40amd.com%7C562d8b8ea61c41a61fe608d8bda0ae3b%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637467845105800757%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=l%2FhF%2FlDAqFN10SzDQ1L05FH1joXrLiuMwHAibBGHOqw%3D&amp;reserved=0
>>
>> The Debian 9 release we tested is not an SEV guest.
> ok. I have not tested Debian 9 before. I will try now. Will let you know
> how it goes. thanks
> 

I have reproduced the issue locally. Will investigate. thanks



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