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TEE with XEN
- To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Jens Wiklander <jens.wiklander@xxxxxxxxxx>, Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>, "tee-dev@xxxxxxxxxxxxxxxx" <tee-dev@xxxxxxxxxxxxxxxx>, Stefano Babic <sbabic@xxxxxxx>, Julien Grall <julien@xxxxxxx>
- From: Peng Fan <peng.fan@xxxxxxx>
- Date: Mon, 15 Jun 2020 02:07:21 +0000
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- Delivery-date: Mon, 15 Jun 2020 02:07:30 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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- Thread-topic: TEE with XEN
Hi All,
While enabling trusty os with xen, I took same approach as OP-TEE,
with OP-TEE running in secure world. But I am also thinking this might
introduce potential issue is that secure world OS communicate with DomU.
If there are some misbehavior in secure world OS, it might let XEN
hypervisor not work proper.
In my setup, trusty os sometimes panic in secure world, xen will not able
to control the panic core anymore.
So I am thinking whether we need to emulating secure world in a XEN VM
which is the VM running DomU. Just like what ACRN did to run trusty
os.
Any comments?
Thanks,
Peng.
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