Messages in this thread | | | Date | Mon, 22 Nov 2021 09:31:45 -0400 | From | Jason Gunthorpe <> | Subject | Re: [RFC v2 PATCH 01/13] mm/shmem: Introduce F_SEAL_GUEST |
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On Mon, Nov 22, 2021 at 10:26:12AM +0100, David Hildenbrand wrote:
> I do wonder if we want to support sharing such memfds between processes > in all cases ... we most certainly don't want to be able to share > encrypted memory between VMs (I heard that the kernel has to forbid > that). It would make sense in the use case you describe, though.
If there is a F_SEAL_XX that blocks every kind of new access, who cares if userspace passes the FD around or not?
Jason
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