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

Babu Moger
2021-01-21T00:08:09Z

On 1/20/21 3:14 PM, Jim Mattson wrote:
> On Tue, Jan 19, 2021 at 3:45 PM Babu Moger <babu.moger@amd.com> wrote:
>>
>>
>>
>> On 1/19/21 5:01 PM, Jim Mattson wrote:
>>> On Mon, Sep 14, 2020 at 11:33 AM Babu Moger <babu.moger@amd.com> 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%7C507e52200cc5478e3b9308d8bd8860bc%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637467740754159704%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=Nxhg4Atzr6wZ1L7egyxQVZ%2FmVCE473%2F%2F5Fi0savgUfk%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