Re: [PATCH 0/4] x86/sgx: fine grained SGX MCA behavior

[Zhiquan Li <zhiquan1.li@intel.com>]

On 2022/5/16 10:29, Kai Huang wrote:
> On Sat, 2022-05-14 at 13:39 +0800, Zhiquan Li wrote:
>> On 2022/5/14 00:35, Luck, Tony wrote:
>>>>> Do you think the processes sharing the same enclave need to be killed,
>>>>> even they had not touched the EPC page with hardware error?
>>>>> Any ideas are welcome.
>>>> I do not think the patch set is going to wrong direction. This discussion
>>>> was just missing from the cover letter.
>> OK, I will add this point into v2 of cover letter and patch 03.
>>
>>
> I don't think you should add to patch 03.  The same enclave can be shared by
> multiple processes is only true for host enclaves, but not virtual EPC isntance.
> Virtual EPC instance is just a raw EPC resource which is accessible to guest,
> but how enclaves are created on this EPC resource is completely upto guest. 
> Therefore, one virtual EPC cannot be shared by two guests.
> 

Thanks for your clarification, Kai.
Patch 04 is for the host case, we can put it there.

May I add your comments in patch 03 and add you as "Acked-by" in v2?
I suppose it is a good answer if someone has the same question.

Best Regards,
Zhiquan

> 
> -- Thanks, -Kai