Messages in this thread | | | Subject | Re: [PATCH v5 12/18] x86/sgx: Add EPC OOM path to forcefully reclaim EPC | Date | Mon, 16 Oct 2023 19:10:09 -0500 | From | "Haitao Huang" <> |
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On Mon, 16 Oct 2023 16:09:52 -0500, Huang, Kai <kai.huang@intel.com> wrote: [...]
> still need to fix the bug mentioned above here. > > I really think you should just go this simple way: > > When you want to take EPC back from VM, kill the VM. >
My only concern is that this is a compromise due to current limitation (no other sane way to take EPC from VMs). If we define this behavior and it becomes a contract to user space, then we can't change in future.
On the other hand, my understanding the reason you want this behavior is to enforce EPC limit at runtime. I just not sure how important it is and if it is a real usage given all limitations of SGX VMs we have (static EPC size, no migration).
Thanks
Haitao
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