lkml.org 
[lkml]   [2021]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v3 03/25] x86/sgx: Wipe out EREMOVE from sgx_free_epc_page()
From
Date
On 23/03/21 17:06, Borislav Petkov wrote:
>> Practically speaking, "basic" deployments of SGX VMs will be insulated from
>> this bug. KVM doesn't support EPC oversubscription, so even if all EPC is
>> exhausted, new VMs will fail to launch, but existing VMs will continue to chug
>> along with no ill effects....
>
> Ok, so it sounds to me like*at* *least* there should be some writeup in
> Documentation/ explaining to the user what to do when she sees such an
> EREMOVE failure, perhaps the gist of this thread and then possibly the
> error message should point to that doc.

That's important, but it's even more important *to developers* that the
commit message spells out why this would be a kernel bug more often than
not. I for one do not understand it, and I suspect I'm not alone.

Maybe (optimistically) once we see that explanation we decide that the
documentation is not important. Sean, Kai, can you explain it?

Paolo

\
 
 \ /
  Last update: 2021-03-23 17:41    [W:0.206 / U:0.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site